Add connection diagnostics and visual field transformation mapping

Merge HANA SSL/MDC support and DLL reference fix from claude/blazor-sap-sales-exporter-9VrM0
Add SSL, MDC database, and custom HANA connection parameters
2026-04-13 11:52:05 +02:00 · 2026-04-13 09:07:41 +00:00 · 2026-04-13 08:52:10 +00:00 · 2026-04-10 06:23:59 +00:00 · 2026-04-09 16:07:10 +02:00 · 2026-04-09 14:00:44 +00:00
199 changed files with 52960 additions and 0 deletions
@@ -0,0 +1,91 @@
+import SwiftUI
+import HealthKit
+import BackgroundTasks
+
+@main
+struct HealthBridgeApp: App {
+    @StateObject private var appState = AppState()
+    @StateObject private var healthKitManager = HealthKitManager.shared
+    @StateObject private var syncCoordinator = SyncCoordinator.shared
+
+    init() {
+        registerBackgroundTasks()
+    }
+
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+                .environmentObject(appState)
+                .environmentObject(healthKitManager)
+                .environmentObject(syncCoordinator)
+                .onAppear {
+                    Task {
+                        await requestHealthKitAuthorization()
+                    }
+                }
+        }
+    }
+
+    private func registerBackgroundTasks() {
+        BGTaskScheduler.shared.register(
+            forTaskWithIdentifier: "com.healthbridge.sync",
+            using: nil
+        ) { task in
+            guard let bgTask = task as? BGAppRefreshTask else { return }
+            handleBackgroundSync(task: bgTask)
+        }
+    }
+
+    private func handleBackgroundSync(task: BGAppRefreshTask) {
+        scheduleNextBackgroundSync()
+
+        let syncTask = Task {
+            do {
+                try await syncCoordinator.performSync()
+                task.setTaskCompleted(success: true)
+            } catch {
+                task.setTaskCompleted(success: false)
+            }
+        }
+
+        task.expirationHandler = {
+            syncTask.cancel()
+        }
+    }
+
+    private func scheduleNextBackgroundSync() {
+        let request = BGAppRefreshTaskRequest(identifier: "com.healthbridge.sync")
+        request.earliestBeginDate = Date(timeIntervalSinceNow: 15 * 60) // 15 min
+
+        do {
+            try BGTaskScheduler.shared.submit(request)
+        } catch {
+            print("Failed to schedule background sync: \(error)")
+        }
+    }
+
+    private func requestHealthKitAuthorization() async {
+        do {
+            try await healthKitManager.requestAuthorization()
+        } catch {
+            print("HealthKit authorization failed: \(error)")
+        }
+    }
+}
+
+// MARK: - App State
+@MainActor
+class AppState: ObservableObject {
+    @Published var selectedTab: Tab = .dashboard
+    @Published var showingConflictDetail: Conflict?
+    @Published var isLoading = false
+    @Published var lastSyncDate: Date?
+    @Published var pendingConflicts: [Conflict] = []
+
+    enum Tab {
+        case dashboard
+        case conflicts
+        case rules
+        case sources
+    }
+}
@@ -0,0 +1,315 @@
+import Foundation
+
+// MARK: - Conflict
+struct Conflict: Identifiable, Codable {
+    let id: UUID
+    let dataType: HealthDataType
+    let timeWindow: TimeWindow
+    var readings: [SourceReading]
+    var status: ConflictStatus
+    var resolution: ConflictResolution?
+    var appliedStrategy: MergeStrategy?
+    let detectedAt: Date
+    var resolvedAt: Date?
+
+    init(
+        id: UUID = UUID(),
+        dataType: HealthDataType,
+        timeWindow: TimeWindow,
+        readings: [SourceReading],
+        status: ConflictStatus = .pending,
+        resolution: ConflictResolution? = nil,
+        appliedStrategy: MergeStrategy? = nil,
+        detectedAt: Date = Date(),
+        resolvedAt: Date? = nil
+    ) {
+        self.id = id
+        self.dataType = dataType
+        self.timeWindow = timeWindow
+        self.readings = readings
+        self.status = status
+        self.resolution = resolution
+        self.appliedStrategy = appliedStrategy
+        self.detectedAt = detectedAt
+        self.resolvedAt = resolvedAt
+    }
+
+    var valueDifference: Double {
+        guard readings.count >= 2 else { return 0 }
+        let values = readings.map { $0.value }
+        return (values.max() ?? 0) - (values.min() ?? 0)
+    }
+
+    var percentageDifference: Double {
+        guard readings.count >= 2 else { return 0 }
+        let values = readings.map { $0.value }
+        guard let min = values.min(), min > 0 else { return 0 }
+        guard let max = values.max() else { return 0 }
+        return ((max - min) / min) * 100
+    }
+
+    var severity: ConflictSeverity {
+        let pctDiff = percentageDifference
+        if pctDiff < 5 { return .minor }
+        if pctDiff < 20 { return .moderate }
+        if pctDiff < 50 { return .significant }
+        return .major
+    }
+
+    var highestValueReading: SourceReading? {
+        readings.max(by: { $0.value < $1.value })
+    }
+
+    var lowestValueReading: SourceReading? {
+        readings.min(by: { $0.value < $1.value })
+    }
+
+    var primarySourceReading: SourceReading? {
+        readings.max(by: { $0.sourceCategory.priority < $1.sourceCategory.priority })
+    }
+}
+
+// MARK: - Conflict Status
+enum ConflictStatus: String, Codable {
+    case pending = "pending"
+    case resolved = "resolved"
+    case manualReview = "manual_review"
+    case ignored = "ignored"
+
+    var displayName: String {
+        switch self {
+        case .pending: return "Offen"
+        case .resolved: return "Gelöst"
+        case .manualReview: return "Manuelle Prüfung"
+        case .ignored: return "Ignoriert"
+        }
+    }
+
+    var icon: String {
+        switch self {
+        case .pending: return "clock.fill"
+        case .resolved: return "checkmark.circle.fill"
+        case .manualReview: return "hand.raised.fill"
+        case .ignored: return "eye.slash.fill"
+        }
+    }
+}
+
+// MARK: - Conflict Severity
+enum ConflictSeverity: String, Codable {
+    case minor = "minor"
+    case moderate = "moderate"
+    case significant = "significant"
+    case major = "major"
+
+    var displayName: String {
+        switch self {
+        case .minor: return "Gering"
+        case .moderate: return "Moderat"
+        case .significant: return "Erheblich"
+        case .major: return "Gross"
+        }
+    }
+
+    var color: String {
+        switch self {
+        case .minor: return "green"
+        case .moderate: return "yellow"
+        case .significant: return "orange"
+        case .major: return "red"
+        }
+    }
+}
+
+// MARK: - Conflict Resolution
+struct ConflictResolution: Codable {
+    let resolvedValue: Double
+    let secondaryResolvedValue: Double? // For blood pressure
+    let winningSourceId: String
+    let strategy: MergeStrategy
+    let isManual: Bool
+    let resolvedAt: Date
+    let notes: String?
+
+    init(
+        resolvedValue: Double,
+        secondaryResolvedValue: Double? = nil,
+        winningSourceId: String,
+        strategy: MergeStrategy,
+        isManual: Bool = false,
+        resolvedAt: Date = Date(),
+        notes: String? = nil
+    ) {
+        self.resolvedValue = resolvedValue
+        self.secondaryResolvedValue = secondaryResolvedValue
+        self.winningSourceId = winningSourceId
+        self.strategy = strategy
+        self.isManual = isManual
+        self.resolvedAt = resolvedAt
+        self.notes = notes
+    }
+}
+
+// MARK: - Merge Strategy
+enum MergeStrategy: String, Codable, CaseIterable, Identifiable {
+    case exclusive = "exclusive"
+    case priority = "priority"
+    case higherWins = "higher_wins"
+    case lowerWins = "lower_wins"
+    case average = "average"
+    case coverage = "coverage"
+    case coverageThenHigher = "coverage_then_higher"
+    case manual = "manual"
+    case mostRecent = "most_recent"
+
+    var id: String { rawValue }
+
+    var displayName: String {
+        switch self {
+        case .exclusive: return "Exklusiv"
+        case .priority: return "Priorität"
+        case .higherWins: return "Höherer Wert"
+        case .lowerWins: return "Niedrigerer Wert"
+        case .average: return "Durchschnitt"
+        case .coverage: return "Abdeckung"
+        case .coverageThenHigher: return "Abdeckung + Höher"
+        case .manual: return "Manuell"
+        case .mostRecent: return "Neuester"
+        }
+    }
+
+    var description: String {
+        switch self {
+        case .exclusive:
+            return "Nur eine Quelle kann diesen Datentyp liefern"
+        case .priority:
+            return "Höchste Priorität gewinnt basierend auf Benutzereinstellungen"
+        case .higherWins:
+            return "Der grössere Wert wird verwendet (z.B. mehr Schritte = war aktiv)"
+        case .lowerWins:
+            return "Der kleinere Wert wird verwendet"
+        case .average:
+            return "Durchschnitt aller Quellen"
+        case .coverage:
+            return "Quelle mit Daten für dieses Zeitfenster"
+        case .coverageThenHigher:
+            return "Erst Abdeckung prüfen, dann höherer Wert bei Konflikt"
+        case .manual:
+            return "Benutzer entscheidet bei jedem Konflikt"
+        case .mostRecent:
+            return "Zuletzt erfasster Wert"
+        }
+    }
+
+    var icon: String {
+        switch self {
+        case .exclusive: return "1.circle.fill"
+        case .priority: return "list.number"
+        case .higherWins: return "arrow.up.circle.fill"
+        case .lowerWins: return "arrow.down.circle.fill"
+        case .average: return "divide.circle.fill"
+        case .coverage: return "square.fill.on.square.fill"
+        case .coverageThenHigher: return "square.stack.3d.up.fill"
+        case .manual: return "hand.raised.fill"
+        case .mostRecent: return "clock.arrow.circlepath"
+        }
+    }
+}
+
+// MARK: - Merge Rule
+struct MergeRule: Identifiable, Codable {
+    let id: UUID
+    let dataType: HealthDataType
+    var strategy: MergeStrategy
+    var primarySourceId: String?
+    var fallbackSourceId: String?
+    var sourcePriorities: [String: Int]
+    var autoApply: Bool
+    var thresholdForManualReview: Double? // Percentage difference threshold
+
+    init(
+        id: UUID = UUID(),
+        dataType: HealthDataType,
+        strategy: MergeStrategy,
+        primarySourceId: String? = nil,
+        fallbackSourceId: String? = nil,
+        sourcePriorities: [String: Int] = [:],
+        autoApply: Bool = true,
+        thresholdForManualReview: Double? = nil
+    ) {
+        self.id = id
+        self.dataType = dataType
+        self.strategy = strategy
+        self.primarySourceId = primarySourceId
+        self.fallbackSourceId = fallbackSourceId
+        self.sourcePriorities = sourcePriorities
+        self.autoApply = autoApply
+        self.thresholdForManualReview = thresholdForManualReview
+    }
+
+    static func defaultRule(for dataType: HealthDataType) -> MergeRule {
+        switch dataType {
+        case .bloodPressureSystolic, .bloodPressureDiastolic, .bloodOxygen,
+             .heartRate, .restingHeartRate, .heartRateVariability, .respiratoryRate:
+            return MergeRule(dataType: dataType, strategy: .exclusive)
+        case .floorsClimbed:
+            return MergeRule(dataType: dataType, strategy: .exclusive)
+        case .steps, .distance, .activeEnergy:
+            return MergeRule(dataType: dataType, strategy: .coverageThenHigher)
+        case .sleep:
+            return MergeRule(dataType: dataType, strategy: .priority)
+        }
+    }
+}
+
+// MARK: - Sync Record
+struct SyncRecord: Identifiable, Codable {
+    let id: UUID
+    let dataType: HealthDataType
+    let timeWindow: TimeWindow
+    var readings: [SourceReading]
+    var mergedValue: Double?
+    var secondaryMergedValue: Double? // For blood pressure
+    var strategy: MergeStrategy
+    var status: SyncStatus
+    var hasConflict: Bool
+    var conflictId: UUID?
+    let createdAt: Date
+    var processedAt: Date?
+
+    enum SyncStatus: String, Codable {
+        case pending = "pending"
+        case processing = "processing"
+        case completed = "completed"
+        case failed = "failed"
+        case requiresManualReview = "requires_manual"
+    }
+
+    init(
+        id: UUID = UUID(),
+        dataType: HealthDataType,
+        timeWindow: TimeWindow,
+        readings: [SourceReading],
+        mergedValue: Double? = nil,
+        secondaryMergedValue: Double? = nil,
+        strategy: MergeStrategy = .priority,
+        status: SyncStatus = .pending,
+        hasConflict: Bool = false,
+        conflictId: UUID? = nil,
+        createdAt: Date = Date(),
+        processedAt: Date? = nil
+    ) {
+        self.id = id
+        self.dataType = dataType
+        self.timeWindow = timeWindow
+        self.readings = readings
+        self.mergedValue = mergedValue
+        self.secondaryMergedValue = secondaryMergedValue
+        self.strategy = strategy
+        self.status = status
+        self.hasConflict = hasConflict
+        self.conflictId = conflictId
+        self.createdAt = createdAt
+        self.processedAt = processedAt
+    }
+}
@@ -0,0 +1,269 @@
+import Foundation
+import HealthKit
+
+// MARK: - Health Data Type
+enum HealthDataType: String, CaseIterable, Codable, Identifiable {
+    case steps = "steps"
+    case heartRate = "heart_rate"
+    case bloodPressureSystolic = "blood_pressure_systolic"
+    case bloodPressureDiastolic = "blood_pressure_diastolic"
+    case bloodOxygen = "blood_oxygen"
+    case sleep = "sleep"
+    case distance = "distance"
+    case floorsClimbed = "floors_climbed"
+    case activeEnergy = "active_energy"
+    case restingHeartRate = "resting_heart_rate"
+    case heartRateVariability = "hrv"
+    case respiratoryRate = "respiratory_rate"
+
+    var id: String { rawValue }
+
+    var displayName: String {
+        switch self {
+        case .steps: return "Schritte"
+        case .heartRate: return "Herzfrequenz"
+        case .bloodPressureSystolic: return "Blutdruck (Systolisch)"
+        case .bloodPressureDiastolic: return "Blutdruck (Diastolisch)"
+        case .bloodOxygen: return "Blutsauerstoff (SpO2)"
+        case .sleep: return "Schlaf"
+        case .distance: return "Distanz"
+        case .floorsClimbed: return "Stockwerke"
+        case .activeEnergy: return "Aktive Energie"
+        case .restingHeartRate: return "Ruhepuls"
+        case .heartRateVariability: return "HRV"
+        case .respiratoryRate: return "Atemfrequenz"
+        }
+    }
+
+    var icon: String {
+        switch self {
+        case .steps: return "figure.walk"
+        case .heartRate, .restingHeartRate: return "heart.fill"
+        case .bloodPressureSystolic, .bloodPressureDiastolic: return "drop.fill"
+        case .bloodOxygen: return "lungs.fill"
+        case .sleep: return "bed.double.fill"
+        case .distance: return "map.fill"
+        case .floorsClimbed: return "stairs"
+        case .activeEnergy: return "flame.fill"
+        case .heartRateVariability: return "waveform.path.ecg"
+        case .respiratoryRate: return "wind"
+        }
+    }
+
+    var unit: String {
+        switch self {
+        case .steps: return "Schritte"
+        case .heartRate, .restingHeartRate: return "bpm"
+        case .bloodPressureSystolic, .bloodPressureDiastolic: return "mmHg"
+        case .bloodOxygen: return "%"
+        case .sleep: return "h"
+        case .distance: return "km"
+        case .floorsClimbed: return "Stockwerke"
+        case .activeEnergy: return "kcal"
+        case .heartRateVariability: return "ms"
+        case .respiratoryRate: return "/min"
+        }
+    }
+
+    var hkQuantityType: HKQuantityType? {
+        switch self {
+        case .steps:
+            return HKQuantityType.quantityType(forIdentifier: .stepCount)
+        case .heartRate:
+            return HKQuantityType.quantityType(forIdentifier: .heartRate)
+        case .bloodPressureSystolic:
+            return HKQuantityType.quantityType(forIdentifier: .bloodPressureSystolic)
+        case .bloodPressureDiastolic:
+            return HKQuantityType.quantityType(forIdentifier: .bloodPressureDiastolic)
+        case .bloodOxygen:
+            return HKQuantityType.quantityType(forIdentifier: .oxygenSaturation)
+        case .distance:
+            return HKQuantityType.quantityType(forIdentifier: .distanceWalkingRunning)
+        case .floorsClimbed:
+            return HKQuantityType.quantityType(forIdentifier: .flightsClimbed)
+        case .activeEnergy:
+            return HKQuantityType.quantityType(forIdentifier: .activeEnergyBurned)
+        case .restingHeartRate:
+            return HKQuantityType.quantityType(forIdentifier: .restingHeartRate)
+        case .heartRateVariability:
+            return HKQuantityType.quantityType(forIdentifier: .heartRateVariabilitySDNN)
+        case .respiratoryRate:
+            return HKQuantityType.quantityType(forIdentifier: .respiratoryRate)
+        case .sleep:
+            return nil // Sleep uses category type
+        }
+    }
+
+    var hkCategoryType: HKCategoryType? {
+        switch self {
+        case .sleep:
+            return HKCategoryType.categoryType(forIdentifier: .sleepAnalysis)
+        default:
+            return nil
+        }
+    }
+
+    var hkUnit: HKUnit {
+        switch self {
+        case .steps, .floorsClimbed:
+            return .count()
+        case .heartRate, .restingHeartRate, .respiratoryRate:
+            return HKUnit.count().unitDivided(by: .minute())
+        case .bloodPressureSystolic, .bloodPressureDiastolic:
+            return .millimeterOfMercury()
+        case .bloodOxygen:
+            return .percent()
+        case .sleep:
+            return .hour()
+        case .distance:
+            return .meterUnit(with: .kilo)
+        case .activeEnergy:
+            return .kilocalorie()
+        case .heartRateVariability:
+            return .secondUnit(with: .milli)
+        }
+    }
+
+    /// Default primary source for this data type
+    var defaultPrimarySource: SourceCategory {
+        switch self {
+        case .floorsClimbed:
+            return .iPhone
+        case .steps, .heartRate, .bloodPressureSystolic, .bloodPressureDiastolic,
+             .bloodOxygen, .sleep, .distance, .activeEnergy, .restingHeartRate,
+             .heartRateVariability, .respiratoryRate:
+            return .watch
+        }
+    }
+
+    /// Whether this data type typically has only one source
+    var isExclusive: Bool {
+        switch self {
+        case .bloodPressureSystolic, .bloodPressureDiastolic, .bloodOxygen,
+             .heartRate, .restingHeartRate, .heartRateVariability, .respiratoryRate, .sleep:
+            return true
+        default:
+            return false
+        }
+    }
+}
+
+// MARK: - Source Category
+enum SourceCategory: String, Codable, CaseIterable {
+    case iPhone = "iphone"
+    case watch = "watch"
+    case thirdPartyWatch = "third_party_watch"
+    case thirdPartyApp = "third_party_app"
+    case healthBridge = "health_bridge"
+    case unknown = "unknown"
+
+    var displayName: String {
+        switch self {
+        case .iPhone: return "iPhone"
+        case .watch: return "Apple Watch"
+        case .thirdPartyWatch: return "Drittanbieter-Watch"
+        case .thirdPartyApp: return "Drittanbieter-App"
+        case .healthBridge: return "HealthBridge"
+        case .unknown: return "Unbekannt"
+        }
+    }
+
+    var icon: String {
+        switch self {
+        case .iPhone: return "iphone"
+        case .watch: return "applewatch"
+        case .thirdPartyWatch: return "applewatch.side.right"
+        case .thirdPartyApp: return "app.badge"
+        case .healthBridge: return "arrow.triangle.2.circlepath"
+        case .unknown: return "questionmark.circle"
+        }
+    }
+
+    var priority: Int {
+        switch self {
+        case .healthBridge: return 100
+        case .watch: return 80
+        case .thirdPartyWatch: return 70
+        case .iPhone: return 50
+        case .thirdPartyApp: return 30
+        case .unknown: return 0
+        }
+    }
+}
+
+// MARK: - Data Quality
+enum DataQuality: String, Codable {
+    case complete = "complete"
+    case partial = "partial"
+    case missing = "missing"
+    case invalid = "invalid"
+
+    var icon: String {
+        switch self {
+        case .complete: return "checkmark.circle.fill"
+        case .partial: return "circle.lefthalf.filled"
+        case .missing: return "circle.dashed"
+        case .invalid: return "xmark.circle.fill"
+        }
+    }
+
+    var color: String {
+        switch self {
+        case .complete: return "green"
+        case .partial: return "yellow"
+        case .missing: return "gray"
+        case .invalid: return "red"
+        }
+    }
+}
+
+// MARK: - Time Window
+struct TimeWindow: Codable, Hashable, Identifiable {
+    let start: Date
+    let end: Date
+
+    var id: String { "\(start.timeIntervalSince1970)-\(end.timeIntervalSince1970)" }
+
+    var interval: DateInterval {
+        DateInterval(start: start, end: end)
+    }
+
+    var duration: TimeInterval {
+        end.timeIntervalSince(start)
+    }
+
+    var formattedRange: String {
+        let formatter = DateFormatter()
+        formatter.dateStyle = .none
+        formatter.timeStyle = .short
+        return "\(formatter.string(from: start)) - \(formatter.string(from: end))"
+    }
+
+    var formattedDate: String {
+        let formatter = DateFormatter()
+        formatter.dateStyle = .medium
+        formatter.timeStyle = .none
+        return formatter.string(from: start)
+    }
+
+    static func windows(for date: Date, intervalMinutes: Int = 15) -> [TimeWindow] {
+        let calendar = Calendar.current
+        let startOfDay = calendar.startOfDay(for: date)
+        let endOfDay = calendar.date(byAdding: .day, value: 1, to: startOfDay)!
+
+        var windows: [TimeWindow] = []
+        var current = startOfDay
+
+        while current < endOfDay {
+            let windowEnd = calendar.date(byAdding: .minute, value: intervalMinutes, to: current)!
+            windows.append(TimeWindow(start: current, end: min(windowEnd, endOfDay)))
+            current = windowEnd
+        }
+
+        return windows
+    }
+
+    static func hourlyWindows(for date: Date) -> [TimeWindow] {
+        windows(for: date, intervalMinutes: 60)
+    }
+}
@@ -0,0 +1,183 @@
+import Foundation
+import HealthKit
+
+// MARK: - Health Source
+struct HealthSource: Identifiable, Codable, Hashable {
+    let id: String
+    let bundleIdentifier: String
+    let name: String
+    let category: SourceCategory
+    var supportedDataTypes: Set<HealthDataType>
+    var lastActivityDate: Date?
+    var userPriorities: [HealthDataType: Int]
+    var isEnabled: Bool
+
+    init(
+        id: String = UUID().uuidString,
+        bundleIdentifier: String,
+        name: String,
+        category: SourceCategory,
+        supportedDataTypes: Set<HealthDataType> = [],
+        lastActivityDate: Date? = nil,
+        userPriorities: [HealthDataType: Int] = [:],
+        isEnabled: Bool = true
+    ) {
+        self.id = id
+        self.bundleIdentifier = bundleIdentifier
+        self.name = name
+        self.category = category
+        self.supportedDataTypes = supportedDataTypes
+        self.lastActivityDate = lastActivityDate
+        self.userPriorities = userPriorities
+        self.isEnabled = isEnabled
+    }
+
+    var displayName: String {
+        if name.isEmpty {
+            return bundleIdentifier.components(separatedBy: ".").last ?? bundleIdentifier
+        }
+        return name
+    }
+
+    var isHealthBridge: Bool {
+        bundleIdentifier == HealthBridgeConstants.bundleIdentifier
+    }
+
+    func priority(for dataType: HealthDataType) -> Int {
+        userPriorities[dataType] ?? category.priority
+    }
+
+    static func from(hkSource: HKSource) -> HealthSource {
+        let category = classifySource(bundleId: hkSource.bundleIdentifier)
+        return HealthSource(
+            id: hkSource.bundleIdentifier,
+            bundleIdentifier: hkSource.bundleIdentifier,
+            name: hkSource.name,
+            category: category
+        )
+    }
+
+    private static func classifySource(bundleId: String) -> SourceCategory {
+        let lowercased = bundleId.lowercased()
+
+        if lowercased.contains("healthbridge") {
+            return .healthBridge
+        } else if lowercased.contains("apple.health") {
+            return .iPhone
+        } else if lowercased.contains("watch") || lowercased.contains("applewatch") {
+            return .watch
+        } else if lowercased.contains("huawei") || lowercased.contains("samsung") ||
+                  lowercased.contains("fitbit") || lowercased.contains("garmin") ||
+                  lowercased.contains("polar") || lowercased.contains("withings") {
+            return .thirdPartyWatch
+        } else {
+            return .thirdPartyApp
+        }
+    }
+}
+
+// MARK: - Source Reading
+struct SourceReading: Identifiable, Codable {
+    let id: UUID
+    let sourceId: String
+    let sourceName: String
+    let sourceCategory: SourceCategory
+    let value: Double
+    let secondaryValue: Double? // For blood pressure (diastolic)
+    let timestamp: Date
+    let originalRecordId: String?
+    let quality: DataQuality
+
+    init(
+        id: UUID = UUID(),
+        sourceId: String,
+        sourceName: String,
+        sourceCategory: SourceCategory,
+        value: Double,
+        secondaryValue: Double? = nil,
+        timestamp: Date,
+        originalRecordId: String? = nil,
+        quality: DataQuality = .complete
+    ) {
+        self.id = id
+        self.sourceId = sourceId
+        self.sourceName = sourceName
+        self.sourceCategory = sourceCategory
+        self.value = value
+        self.secondaryValue = secondaryValue
+        self.timestamp = timestamp
+        self.originalRecordId = originalRecordId
+        self.quality = quality
+    }
+
+    var formattedValue: String {
+        if value == floor(value) {
+            return String(format: "%.0f", value)
+        }
+        return String(format: "%.1f", value)
+    }
+}
+
+// MARK: - Source Health Status
+struct SourceHealthStatus: Identifiable {
+    let id: String
+    let source: HealthSource
+    let lastSync: Date?
+    let recordCount: Int
+    let dataGaps: [TimeWindow]
+    let overallQuality: DataQuality
+
+    var syncStatus: SyncStatus {
+        guard let lastSync = lastSync else {
+            return .neverSynced
+        }
+
+        let hoursSinceSync = Date().timeIntervalSince(lastSync) / 3600
+
+        if hoursSinceSync < 1 {
+            return .recentlySynced
+        } else if hoursSinceSync < 24 {
+            return .syncedToday
+        } else if hoursSinceSync < 72 {
+            return .stale
+        } else {
+            return .veryStale
+        }
+    }
+
+    enum SyncStatus {
+        case recentlySynced
+        case syncedToday
+        case stale
+        case veryStale
+        case neverSynced
+
+        var icon: String {
+            switch self {
+            case .recentlySynced: return "checkmark.circle.fill"
+            case .syncedToday: return "checkmark.circle"
+            case .stale: return "exclamationmark.circle"
+            case .veryStale: return "exclamationmark.triangle"
+            case .neverSynced: return "xmark.circle"
+            }
+        }
+
+        var description: String {
+            switch self {
+            case .recentlySynced: return "Kürzlich synchronisiert"
+            case .syncedToday: return "Heute synchronisiert"
+            case .stale: return "Sync überfällig"
+            case .veryStale: return "Lange nicht synchronisiert"
+            case .neverSynced: return "Nie synchronisiert"
+            }
+        }
+    }
+}
+
+// MARK: - Constants
+enum HealthBridgeConstants {
+    static let bundleIdentifier = "com.healthbridge.merged"
+    static let displayName = "HealthBridge"
+    static let defaultSyncInterval: TimeInterval = 15 * 60 // 15 minutes
+    static let conflictThreshold: TimeInterval = 60 // 1 minute overlap tolerance
+}
@@ -0,0 +1,140 @@
+# HealthBridge
+
+Intelligente Health-Daten-Synchronisation für iOS – Eine "Single Source of Truth" für Gesundheitsdaten.
+
+## Übersicht
+
+HealthBridge liest alle Quellen aus Apple Health, erkennt Konflikte zwischen verschiedenen Geräten und Apps, merged intelligent basierend auf konfigurierbaren Regeln und schreibt bereinigte Daten zurück.
+
+## Features
+
+### Source Discovery
+- Automatische Erkennung aller verbundenen Datenquellen
+- Klassifizierung nach Gerätetyp (iPhone, Apple Watch, Drittanbieter-Watch, Apps)
+- Übersicht über Fähigkeiten und unterstützte Datentypen pro Quelle
+
+### Konflikt-Erkennung
+- Automatische Erkennung von Datenkonflikten zwischen Quellen
+- Zeitfenster-basierte Analyse (15-Minuten-Intervalle)
+- Schweregrad-Klassifizierung (minor, moderate, significant, major)
+
+### Merge-Strategien
+- **Exclusive**: Nur eine Quelle möglich (z.B. Blutdruck, SpO2)
+- **Priority**: Fixe Rangfolge basierend auf Benutzereinstellungen
+- **Higher Wins**: Grösserer Wert gewinnt (ideal für Schritte)
+- **Coverage**: Quelle mit Daten für Zeitfenster gewinnt
+- **Coverage Then Higher**: Erst Abdeckung, dann höherer Wert
+- **Average**: Durchschnitt aller Quellen
+- **Manual**: Benutzer entscheidet bei jedem Konflikt
+
+### UI-Komponenten
+- **Dashboard**: Tagesübersicht aller Gesundheitsdaten mit Sync-Status
+- **Konflikte**: Liste offener Konflikte mit One-Tap-Auflösung
+- **Regeln**: Konfiguration der Merge-Strategien pro Datentyp
+- **Quellen**: Übersicht aller erkannten Datenquellen
+
+### Background Sync
+- Automatische Synchronisierung im Hintergrund
+- Konfigurierbares Intervall (15 Min bis 2 Stunden)
+- Push-Benachrichtigungen bei neuen Konflikten
+
+## Unterstützte Datentypen
+
+| Datentyp | Primärquelle | Strategie |
+|----------|--------------|-----------|
+| Schritte | Watch | Coverage + Higher |
+| Herzfrequenz | Watch | Exclusive |
+| Blutdruck | Watch D2 | Exclusive |
+| SpO2 | Watch | Exclusive |
+| Schlaf | Watch | Priority |
+| Distanz | Watch/iPhone | Coverage + Higher |
+| Stockwerke | iPhone | Exclusive |
+| Aktive Energie | Watch | Coverage + Higher |
+
+## Architektur
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                        Apple Health                             │
+└─────────────────────────────────────────────────────────────────┘
+                              ▲
+                              │
+┌─────────────────────────────────────────────────────────────────┐
+│                      HealthBridge App                           │
+│                                                                 │
+│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐            │
+│  │ DataReader  │→ │ MergeEngine │→ │ DataWriter  │            │
+│  └─────────────┘  └─────────────┘  └─────────────┘            │
+│         ▲               ▲                                      │
+│  ┌─────────────┐  ┌─────────────┐                             │
+│  │SourceManager│  │ RuleEngine  │                             │
+│  └─────────────┘  └─────────────┘                             │
+│                                                                │
+│  ┌─────────────────────────────────────────────────────────┐  │
+│  │                   SyncCoordinator                        │  │
+│  └─────────────────────────────────────────────────────────┘  │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+## Projektstruktur
+
+```
+HealthBridge/
+├── App/
+│   └── HealthBridgeApp.swift      # App-Entry, Background Tasks
+├── Models/
+│   ├── HealthDataTypes.swift      # Datentypen, TimeWindow
+│   ├── Source.swift               # HealthSource, SourceReading
+│   └── Conflict.swift             # Conflict, MergeStrategy, MergeRule
+├── Services/
+│   ├── HealthKitManager.swift     # HealthKit-Integration
+│   ├── SourceManager.swift        # Source Discovery & Management
+│   ├── DataReader.swift           # Daten lesen, Konflikte erkennen
+│   ├── RuleEngine.swift           # Merge-Regeln verwalten & anwenden
+│   ├── MergeEngine.swift          # Konflikte analysieren & lösen
+│   ├── DataWriter.swift           # Daten zurückschreiben
+│   └── SyncCoordinator.swift      # Orchestrierung aller Services
+├── Views/
+│   ├── ContentView.swift          # Tab-Navigation
+│   ├── DashboardView.swift        # Hauptübersicht
+│   ├── ConflictsView.swift        # Konflikt-Liste & Detail
+│   ├── RulesView.swift            # Regelwerk-Editor
+│   ├── SourcesView.swift          # Quellen-Übersicht
+│   ├── SettingsView.swift         # Einstellungen
+│   └── Components/
+│       └── HealthChart.swift      # Diagramm-Komponenten
+├── ViewModels/
+│   └── DashboardViewModel.swift   # Dashboard-Logik
+├── Utils/
+│   ├── Extensions.swift           # Swift-Erweiterungen
+│   └── NotificationManager.swift  # Push-Benachrichtigungen
+└── Resources/
+    ├── Info.plist                 # App-Konfiguration
+    └── HealthBridge.entitlements  # HealthKit-Berechtigungen
+```
+
+## Voraussetzungen
+
+- iOS 16.0+
+- Xcode 15.0+
+- Apple Developer Account (für HealthKit-Entitlements)
+- Physisches Gerät (HealthKit nicht im Simulator verfügbar)
+
+## Installation
+
+1. Projekt in Xcode öffnen
+2. Team für Code Signing auswählen
+3. HealthKit-Capability aktivieren
+4. Auf physischem Gerät ausführen
+
+## Berechtigungen
+
+Die App benötigt folgende Berechtigungen:
+- **HealthKit Read**: Lesen aller Gesundheitsdaten
+- **HealthKit Write**: Schreiben gemergter Daten
+- **Background App Refresh**: Für automatische Synchronisierung
+- **Notifications**: Für Konflikt-Benachrichtigungen
+
+## Lizenz
+
+MIT License
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.developer.healthkit</key>
+    <true/>
+    <key>com.apple.developer.healthkit.access</key>
+    <array>
+        <string>health-records</string>
+    </array>
+    <key>com.apple.developer.healthkit.background-delivery</key>
+    <true/>
+    <key>aps-environment</key>
+    <string>development</string>
+</dict>
+</plist>
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleDevelopmentRegion</key>
+    <string>$(DEVELOPMENT_LANGUAGE)</string>
+    <key>CFBundleDisplayName</key>
+    <string>HealthBridge</string>
+    <key>CFBundleExecutable</key>
+    <string>$(EXECUTABLE_NAME)</string>
+    <key>CFBundleIdentifier</key>
+    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleName</key>
+    <string>$(PRODUCT_NAME)</string>
+    <key>CFBundlePackageType</key>
+    <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+    <key>CFBundleShortVersionString</key>
+    <string>1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1</string>
+    <key>LSRequiresIPhoneOS</key>
+    <true/>
+    <key>UIApplicationSceneManifest</key>
+    <dict>
+        <key>UIApplicationSupportsMultipleScenes</key>
+        <false/>
+    </dict>
+    <key>UILaunchScreen</key>
+    <dict>
+        <key>UIColorName</key>
+        <string>LaunchScreenBackground</string>
+        <key>UIImageName</key>
+        <string>LaunchIcon</string>
+    </dict>
+    <key>UISupportedInterfaceOrientations</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>UISupportedInterfaceOrientations~ipad</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationPortraitUpsideDown</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>UIRequiredDeviceCapabilities</key>
+    <array>
+        <string>armv7</string>
+        <string>healthkit</string>
+    </array>
+
+    <!-- HealthKit -->
+    <key>NSHealthShareUsageDescription</key>
+    <string>HealthBridge benötigt Zugriff auf Ihre Gesundheitsdaten, um diese zwischen verschiedenen Quellen zu synchronisieren und Konflikte zu lösen.</string>
+    <key>NSHealthUpdateUsageDescription</key>
+    <string>HealthBridge schreibt bereinigte Gesundheitsdaten zurück in Apple Health, um eine konsistente Datenbasis zu gewährleisten.</string>
+
+    <!-- Background Modes -->
+    <key>UIBackgroundModes</key>
+    <array>
+        <string>fetch</string>
+        <string>processing</string>
+    </array>
+    <key>BGTaskSchedulerPermittedIdentifiers</key>
+    <array>
+        <string>com.healthbridge.sync</string>
+        <string>com.healthbridge.cleanup</string>
+    </array>
+</dict>
+</plist>
@@ -0,0 +1,488 @@
+import Foundation
+import HealthKit
+import Combine
+
+// MARK: - Data Reader
+@MainActor
+class DataReader: ObservableObject {
+    static let shared = DataReader()
+
+    private let healthKitManager = HealthKitManager.shared
+    private let sourceManager = SourceManager.shared
+
+    @Published var isReading = false
+    @Published var lastReadDate: Date?
+    @Published var detectedConflicts: [Conflict] = []
+    @Published var readingProgress: Double = 0
+
+    private init() {}
+
+    // MARK: - Fetch Data by Type and Date Range
+
+    func fetchData(
+        for dataType: HealthDataType,
+        from startDate: Date,
+        to endDate: Date,
+        groupByWindow intervalMinutes: Int = 15
+    ) async throws -> [TimeWindowData] {
+        isReading = true
+        defer { isReading = false }
+
+        let samples = try await healthKitManager.fetchSamples(
+            for: dataType,
+            from: startDate,
+            to: endDate
+        )
+
+        // Group samples by source
+        let groupedBySource = groupBySource(samples: samples, dataType: dataType)
+
+        // Create time windows
+        let windows = generateTimeWindows(from: startDate, to: endDate, intervalMinutes: intervalMinutes)
+
+        // Assign samples to windows
+        var windowDataList: [TimeWindowData] = []
+
+        for window in windows {
+            let windowData = createWindowData(
+                window: window,
+                dataType: dataType,
+                groupedBySource: groupedBySource
+            )
+            windowDataList.append(windowData)
+        }
+
+        lastReadDate = Date()
+        return windowDataList
+    }
+
+    private func groupBySource(samples: [HKSample], dataType: HealthDataType) -> [String: [HKSample]] {
+        var grouped: [String: [HKSample]] = [:]
+
+        for sample in samples {
+            let sourceId = sample.sourceRevision.source.bundleIdentifier
+            if grouped[sourceId] == nil {
+                grouped[sourceId] = []
+            }
+            grouped[sourceId]?.append(sample)
+        }
+
+        return grouped
+    }
+
+    private func generateTimeWindows(from start: Date, to end: Date, intervalMinutes: Int) -> [TimeWindow] {
+        var windows: [TimeWindow] = []
+        var current = start
+
+        while current < end {
+            let windowEnd = min(
+                Calendar.current.date(byAdding: .minute, value: intervalMinutes, to: current)!,
+                end
+            )
+            windows.append(TimeWindow(start: current, end: windowEnd))
+            current = windowEnd
+        }
+
+        return windows
+    }
+
+    private func createWindowData(
+        window: TimeWindow,
+        dataType: HealthDataType,
+        groupedBySource: [String: [HKSample]]
+    ) -> TimeWindowData {
+        var readings: [SourceReading] = []
+
+        for (sourceId, samples) in groupedBySource {
+            let windowSamples = samples.filter { sample in
+                sample.startDate < window.end && sample.endDate > window.start
+            }
+
+            if !windowSamples.isEmpty {
+                let reading = createReading(
+                    from: windowSamples,
+                    sourceId: sourceId,
+                    dataType: dataType,
+                    window: window
+                )
+                readings.append(reading)
+            }
+        }
+
+        let hasConflict = detectConflict(in: readings, dataType: dataType)
+
+        return TimeWindowData(
+            timeWindow: window,
+            dataType: dataType,
+            readings: readings,
+            hasConflict: hasConflict
+        )
+    }
+
+    private func createReading(
+        from samples: [HKSample],
+        sourceId: String,
+        dataType: HealthDataType,
+        window: TimeWindow
+    ) -> SourceReading {
+        let value: Double
+        var secondaryValue: Double? = nil
+
+        switch dataType {
+        case .steps, .floorsClimbed, .activeEnergy, .distance:
+            // Sum up values for cumulative types
+            value = samples.compactMap { sample -> Double? in
+                guard let quantitySample = sample as? HKQuantitySample else { return nil }
+                return quantitySample.quantity.doubleValue(for: dataType.hkUnit)
+            }.reduce(0, +)
+
+        case .heartRate, .restingHeartRate, .respiratoryRate, .heartRateVariability, .bloodOxygen:
+            // Average for rate-based types
+            let values = samples.compactMap { sample -> Double? in
+                guard let quantitySample = sample as? HKQuantitySample else { return nil }
+                return quantitySample.quantity.doubleValue(for: dataType.hkUnit)
+            }
+            value = values.isEmpty ? 0 : values.reduce(0, +) / Double(values.count)
+
+        case .bloodPressureSystolic, .bloodPressureDiastolic:
+            // For blood pressure, we need to handle correlations
+            let values = samples.compactMap { sample -> Double? in
+                guard let quantitySample = sample as? HKQuantitySample else { return nil }
+                return quantitySample.quantity.doubleValue(for: dataType.hkUnit)
+            }
+            value = values.isEmpty ? 0 : values.reduce(0, +) / Double(values.count)
+
+        case .sleep:
+            // Sum up sleep duration
+            value = samples.reduce(0) { acc, sample in
+                acc + sample.endDate.timeIntervalSince(sample.startDate) / 3600
+            }
+        }
+
+        let source = sourceManager.sources.first { $0.bundleIdentifier == sourceId }
+        let category = source?.category ?? sourceManager.classifySource(sourceId)
+
+        return SourceReading(
+            sourceId: sourceId,
+            sourceName: source?.name ?? sourceId,
+            sourceCategory: category,
+            value: value,
+            secondaryValue: secondaryValue,
+            timestamp: window.start,
+            originalRecordId: samples.first?.uuid.uuidString,
+            quality: samples.isEmpty ? .missing : .complete
+        )
+    }
+
+    // MARK: - Conflict Detection
+
+    private func detectConflict(in readings: [SourceReading], dataType: HealthDataType) -> Bool {
+        // No conflict if less than 2 readings
+        guard readings.count >= 2 else { return false }
+
+        // Filter out zero values (device wasn't tracking)
+        let nonZeroReadings = readings.filter { $0.value > 0 }
+        guard nonZeroReadings.count >= 2 else { return false }
+
+        // Check if values differ significantly
+        let values = nonZeroReadings.map { $0.value }
+        guard let minVal = values.min(), let maxVal = values.max() else { return false }
+
+        // Threshold varies by data type
+        let threshold = conflictThreshold(for: dataType)
+
+        if minVal == 0 {
+            return maxVal > threshold.absoluteThreshold
+        }
+
+        let percentDiff = (maxVal - minVal) / minVal * 100
+        return percentDiff > threshold.percentageThreshold
+    }
+
+    private func conflictThreshold(for dataType: HealthDataType) -> ConflictThreshold {
+        switch dataType {
+        case .steps:
+            return ConflictThreshold(percentageThreshold: 10, absoluteThreshold: 100)
+        case .distance:
+            return ConflictThreshold(percentageThreshold: 10, absoluteThreshold: 0.1) // 100m
+        case .heartRate:
+            return ConflictThreshold(percentageThreshold: 15, absoluteThreshold: 10)
+        case .bloodPressureSystolic, .bloodPressureDiastolic:
+            return ConflictThreshold(percentageThreshold: 5, absoluteThreshold: 5)
+        case .bloodOxygen:
+            return ConflictThreshold(percentageThreshold: 2, absoluteThreshold: 2)
+        case .floorsClimbed:
+            return ConflictThreshold(percentageThreshold: 20, absoluteThreshold: 2)
+        case .activeEnergy:
+            return ConflictThreshold(percentageThreshold: 15, absoluteThreshold: 50)
+        case .sleep:
+            return ConflictThreshold(percentageThreshold: 10, absoluteThreshold: 0.5) // 30 min
+        case .restingHeartRate:
+            return ConflictThreshold(percentageThreshold: 10, absoluteThreshold: 5)
+        case .heartRateVariability:
+            return ConflictThreshold(percentageThreshold: 20, absoluteThreshold: 10)
+        case .respiratoryRate:
+            return ConflictThreshold(percentageThreshold: 15, absoluteThreshold: 2)
+        }
+    }
+
+    // MARK: - Detect All Conflicts
+
+    func detectConflicts(
+        for date: Date,
+        dataTypes: [HealthDataType] = HealthDataType.allCases
+    ) async throws -> [Conflict] {
+        let calendar = Calendar.current
+        let startOfDay = calendar.startOfDay(for: date)
+        let endOfDay = calendar.date(byAdding: .day, value: 1, to: startOfDay)!
+
+        var allConflicts: [Conflict] = []
+
+        for (index, dataType) in dataTypes.enumerated() {
+            readingProgress = Double(index) / Double(dataTypes.count)
+
+            do {
+                let windowData = try await fetchData(
+                    for: dataType,
+                    from: startOfDay,
+                    to: endOfDay
+                )
+
+                let conflicts = windowData
+                    .filter { $0.hasConflict }
+                    .map { data in
+                        Conflict(
+                            dataType: dataType,
+                            timeWindow: data.timeWindow,
+                            readings: data.readings,
+                            status: .pending
+                        )
+                    }
+
+                allConflicts.append(contentsOf: conflicts)
+            } catch {
+                print("Failed to detect conflicts for \(dataType): \(error)")
+            }
+        }
+
+        readingProgress = 1.0
+        detectedConflicts = allConflicts
+        return allConflicts
+    }
+
+    // MARK: - Data Gaps Detection
+
+    func detectGaps(
+        for dataType: HealthDataType,
+        from startDate: Date,
+        to endDate: Date,
+        expectedIntervalMinutes: Int = 15
+    ) async throws -> [DataGap] {
+        let samples = try await healthKitManager.fetchSamples(
+            for: dataType,
+            from: startDate,
+            to: endDate
+        )
+
+        guard !samples.isEmpty else {
+            return [DataGap(
+                dataType: dataType,
+                timeWindow: TimeWindow(start: startDate, end: endDate),
+                expectedRecordCount: 0,
+                actualRecordCount: 0
+            )]
+        }
+
+        let sortedSamples = samples.sorted { $0.startDate < $1.startDate }
+        var gaps: [DataGap] = []
+        let expectedInterval = TimeInterval(expectedIntervalMinutes * 60)
+
+        // Check gap at start
+        if let firstSample = sortedSamples.first,
+           firstSample.startDate.timeIntervalSince(startDate) > expectedInterval * 2 {
+            gaps.append(DataGap(
+                dataType: dataType,
+                timeWindow: TimeWindow(start: startDate, end: firstSample.startDate),
+                expectedRecordCount: Int(firstSample.startDate.timeIntervalSince(startDate) / expectedInterval),
+                actualRecordCount: 0
+            ))
+        }
+
+        // Check gaps between samples
+        for i in 0..<(sortedSamples.count - 1) {
+            let current = sortedSamples[i]
+            let next = sortedSamples[i + 1]
+            let gap = next.startDate.timeIntervalSince(current.endDate)
+
+            if gap > expectedInterval * 2 {
+                gaps.append(DataGap(
+                    dataType: dataType,
+                    timeWindow: TimeWindow(start: current.endDate, end: next.startDate),
+                    expectedRecordCount: Int(gap / expectedInterval),
+                    actualRecordCount: 0
+                ))
+            }
+        }
+
+        // Check gap at end
+        if let lastSample = sortedSamples.last,
+           endDate.timeIntervalSince(lastSample.endDate) > expectedInterval * 2 {
+            gaps.append(DataGap(
+                dataType: dataType,
+                timeWindow: TimeWindow(start: lastSample.endDate, end: endDate),
+                expectedRecordCount: Int(endDate.timeIntervalSince(lastSample.endDate) / expectedInterval),
+                actualRecordCount: 0
+            ))
+        }
+
+        return gaps
+    }
+
+    // MARK: - Aggregated Data
+
+    func fetchDailySummary(for date: Date) async throws -> DailySummary {
+        let calendar = Calendar.current
+        let startOfDay = calendar.startOfDay(for: date)
+        let endOfDay = calendar.date(byAdding: .day, value: 1, to: startOfDay)!
+
+        var summary = DailySummary(date: date)
+
+        for dataType in HealthDataType.allCases {
+            do {
+                let samples = try await healthKitManager.fetchSamples(
+                    for: dataType,
+                    from: startOfDay,
+                    to: endOfDay
+                )
+
+                let value = aggregateValue(samples: samples, dataType: dataType)
+                summary.values[dataType] = value
+
+                // Check for conflicts
+                let windowData = try await fetchData(
+                    for: dataType,
+                    from: startOfDay,
+                    to: endOfDay
+                )
+                let conflictCount = windowData.filter { $0.hasConflict }.count
+                summary.conflictCounts[dataType] = conflictCount
+            } catch {
+                print("Failed to fetch \(dataType) for summary: \(error)")
+            }
+        }
+
+        return summary
+    }
+
+    private func aggregateValue(samples: [HKSample], dataType: HealthDataType) -> Double {
+        switch dataType {
+        case .steps, .floorsClimbed, .activeEnergy, .distance:
+            return samples.compactMap { sample -> Double? in
+                guard let quantitySample = sample as? HKQuantitySample else { return nil }
+                return quantitySample.quantity.doubleValue(for: dataType.hkUnit)
+            }.reduce(0, +)
+
+        case .heartRate, .restingHeartRate, .respiratoryRate, .heartRateVariability,
+             .bloodOxygen, .bloodPressureSystolic, .bloodPressureDiastolic:
+            let values = samples.compactMap { sample -> Double? in
+                guard let quantitySample = sample as? HKQuantitySample else { return nil }
+                return quantitySample.quantity.doubleValue(for: dataType.hkUnit)
+            }
+            return values.isEmpty ? 0 : values.reduce(0, +) / Double(values.count)
+
+        case .sleep:
+            return samples.reduce(0) { acc, sample in
+                acc + sample.endDate.timeIntervalSince(sample.startDate) / 3600
+            }
+        }
+    }
+}
+
+// MARK: - Supporting Types
+
+struct TimeWindowData: Identifiable {
+    let id = UUID()
+    let timeWindow: TimeWindow
+    let dataType: HealthDataType
+    let readings: [SourceReading]
+    let hasConflict: Bool
+
+    var primaryReading: SourceReading? {
+        readings.max { $0.sourceCategory.priority < $1.sourceCategory.priority }
+    }
+
+    var conflictSeverity: ConflictSeverity? {
+        guard hasConflict, readings.count >= 2 else { return nil }
+
+        let values = readings.map { $0.value }.filter { $0 > 0 }
+        guard let min = values.min(), let max = values.max(), min > 0 else { return nil }
+
+        let percentDiff = (max - min) / min * 100
+
+        if percentDiff < 5 { return .minor }
+        if percentDiff < 20 { return .moderate }
+        if percentDiff < 50 { return .significant }
+        return .major
+    }
+}
+
+struct ConflictThreshold {
+    let percentageThreshold: Double
+    let absoluteThreshold: Double
+}
+
+struct DataGap: Identifiable {
+    let id = UUID()
+    let dataType: HealthDataType
+    let timeWindow: TimeWindow
+    let expectedRecordCount: Int
+    let actualRecordCount: Int
+
+    var severity: GapSeverity {
+        let duration = timeWindow.duration
+        if duration < 3600 { return .minor } // < 1 hour
+        if duration < 4 * 3600 { return .moderate } // < 4 hours
+        if duration < 12 * 3600 { return .significant } // < 12 hours
+        return .major
+    }
+
+    enum GapSeverity {
+        case minor, moderate, significant, major
+    }
+}
+
+struct DailySummary {
+    let date: Date
+    var values: [HealthDataType: Double] = [:]
+    var conflictCounts: [HealthDataType: Int] = [:]
+    var lastUpdated = Date()
+
+    var totalConflicts: Int {
+        conflictCounts.values.reduce(0, +)
+    }
+
+    func formattedValue(for dataType: HealthDataType) -> String {
+        guard let value = values[dataType] else { return "–" }
+
+        switch dataType {
+        case .steps, .floorsClimbed:
+            return String(format: "%.0f", value)
+        case .distance:
+            return String(format: "%.2f km", value)
+        case .heartRate, .restingHeartRate, .respiratoryRate:
+            return String(format: "%.0f %@", value, dataType.unit)
+        case .bloodPressureSystolic, .bloodPressureDiastolic:
+            return String(format: "%.0f mmHg", value)
+        case .bloodOxygen:
+            return String(format: "%.0f%%", value * 100)
+        case .activeEnergy:
+            return String(format: "%.0f kcal", value)
+        case .sleep:
+            let hours = Int(value)
+            let minutes = Int((value - Double(hours)) * 60)
+            return "\(hours)h \(minutes)min"
+        case .heartRateVariability:
+            return String(format: "%.0f ms", value)
+        }
+    }
+}
@@ -0,0 +1,395 @@
+import Foundation
+import HealthKit
+import Combine
+
+// MARK: - Data Writer
+@MainActor
+class DataWriter: ObservableObject {
+    static let shared = DataWriter()
+
+    private let healthKitManager = HealthKitManager.shared
+    private let healthStore = HKHealthStore()
+
+    @Published var isWriting = false
+    @Published var writeProgress: Double = 0
+    @Published var lastWriteDate: Date?
+    @Published var writtenRecords: [WrittenRecord] = []
+    @Published var failedWrites: [FailedWrite] = []
+
+    private let processedRecordsKey = "healthbridge.processed.records"
+
+    private init() {
+        loadProcessedRecords()
+    }
+
+    // MARK: - Write Single Record
+
+    func writeRecord(_ mergedRecord: MergedRecord) async throws -> WrittenRecord {
+        isWriting = true
+        defer { isWriting = false }
+
+        // Check if already written
+        if isAlreadyWritten(mergedRecord) {
+            throw DataWriterError.duplicateRecord
+        }
+
+        let metadata = createMetadata(from: mergedRecord)
+
+        switch mergedRecord.dataType {
+        case .bloodPressureSystolic, .bloodPressureDiastolic:
+            // Blood pressure needs special handling
+            guard let diastolic = mergedRecord.secondaryValue else {
+                throw DataWriterError.missingSecondaryValue
+            }
+            try await writeBloodPressure(
+                systolic: mergedRecord.value,
+                diastolic: diastolic,
+                date: mergedRecord.timeWindow.start,
+                metadata: metadata
+            )
+
+        default:
+            try await writeSample(
+                dataType: mergedRecord.dataType,
+                value: mergedRecord.value,
+                date: mergedRecord.timeWindow.start,
+                metadata: metadata
+            )
+        }
+
+        let writtenRecord = WrittenRecord(
+            id: UUID(),
+            mergedRecordId: mergedRecord.id,
+            dataType: mergedRecord.dataType,
+            value: mergedRecord.value,
+            secondaryValue: mergedRecord.secondaryValue,
+            writtenAt: Date(),
+            timeWindow: mergedRecord.timeWindow
+        )
+
+        writtenRecords.append(writtenRecord)
+        markAsProcessed(mergedRecord)
+        lastWriteDate = Date()
+
+        return writtenRecord
+    }
+
+    // MARK: - Write Batch
+
+    func writeBatch(_ mergedRecords: [MergedRecord]) async -> BatchWriteResult {
+        isWriting = true
+        defer { isWriting = false }
+
+        var successful: [WrittenRecord] = []
+        var failed: [FailedWrite] = []
+
+        for (index, record) in mergedRecords.enumerated() {
+            writeProgress = Double(index) / Double(mergedRecords.count)
+
+            do {
+                let writtenRecord = try await writeRecord(record)
+                successful.append(writtenRecord)
+            } catch {
+                let failedWrite = FailedWrite(
+                    mergedRecord: record,
+                    error: error,
+                    attemptedAt: Date()
+                )
+                failed.append(failedWrite)
+                failedWrites.append(failedWrite)
+            }
+        }
+
+        writeProgress = 1.0
+
+        return BatchWriteResult(
+            successful: successful,
+            failed: failed,
+            completedAt: Date()
+        )
+    }
+
+    // MARK: - Private Write Methods
+
+    private func writeSample(
+        dataType: HealthDataType,
+        value: Double,
+        date: Date,
+        metadata: [String: Any]
+    ) async throws {
+        guard let quantityType = dataType.hkQuantityType else {
+            throw DataWriterError.unsupportedDataType
+        }
+
+        let quantity = HKQuantity(unit: dataType.hkUnit, doubleValue: value)
+        let sample = HKQuantitySample(
+            type: quantityType,
+            quantity: quantity,
+            start: date,
+            end: date,
+            metadata: metadata
+        )
+
+        try await healthStore.save(sample)
+    }
+
+    private func writeBloodPressure(
+        systolic: Double,
+        diastolic: Double,
+        date: Date,
+        metadata: [String: Any]
+    ) async throws {
+        // Validate blood pressure values
+        let validation = BloodPressureHandler.shared.validate(
+            systolic: systolic,
+            diastolic: diastolic
+        )
+
+        if !validation.isValid {
+            throw DataWriterError.invalidValue(validation.issues.joined(separator: ", "))
+        }
+
+        guard let systolicType = HKQuantityType.quantityType(forIdentifier: .bloodPressureSystolic),
+              let diastolicType = HKQuantityType.quantityType(forIdentifier: .bloodPressureDiastolic),
+              let correlationType = HKCorrelationType.correlationType(forIdentifier: .bloodPressure) else {
+            throw DataWriterError.unsupportedDataType
+        }
+
+        let systolicQuantity = HKQuantity(unit: .millimeterOfMercury(), doubleValue: systolic)
+        let diastolicQuantity = HKQuantity(unit: .millimeterOfMercury(), doubleValue: diastolic)
+
+        let systolicSample = HKQuantitySample(
+            type: systolicType,
+            quantity: systolicQuantity,
+            start: date,
+            end: date,
+            metadata: metadata
+        )
+
+        let diastolicSample = HKQuantitySample(
+            type: diastolicType,
+            quantity: diastolicQuantity,
+            start: date,
+            end: date,
+            metadata: metadata
+        )
+
+        let correlation = HKCorrelation(
+            type: correlationType,
+            start: date,
+            end: date,
+            objects: [systolicSample, diastolicSample],
+            metadata: metadata
+        )
+
+        try await healthStore.save(correlation)
+    }
+
+    // MARK: - Metadata
+
+    private func createMetadata(from record: MergedRecord) -> [String: Any] {
+        var metadata: [String: Any] = [
+            HKMetadataKeyWasUserEntered: false,
+            "HealthBridgeSource": HealthBridgeConstants.bundleIdentifier,
+            "OriginalSourceId": record.originalSourceId,
+            "MergeStrategy": record.strategy.rawValue,
+            "MergedRecordId": record.id.uuidString,
+            "MergedAt": ISO8601DateFormatter().string(from: record.createdAt)
+        ]
+
+        for (key, value) in record.metadata {
+            metadata["HB_\(key)"] = value
+        }
+
+        return metadata
+    }
+
+    // MARK: - Duplicate Prevention
+
+    private var processedRecordIds: Set<String> = []
+
+    private func loadProcessedRecords() {
+        if let data = UserDefaults.standard.data(forKey: processedRecordsKey),
+           let ids = try? JSONDecoder().decode(Set<String>.self, from: data) {
+            processedRecordIds = ids
+        }
+    }
+
+    private func saveProcessedRecords() {
+        if let data = try? JSONEncoder().encode(processedRecordIds) {
+            UserDefaults.standard.set(data, forKey: processedRecordsKey)
+        }
+    }
+
+    private func isAlreadyWritten(_ record: MergedRecord) -> Bool {
+        let identifier = createRecordIdentifier(record)
+        return processedRecordIds.contains(identifier)
+    }
+
+    private func markAsProcessed(_ record: MergedRecord) {
+        let identifier = createRecordIdentifier(record)
+        processedRecordIds.insert(identifier)
+        saveProcessedRecords()
+
+        // Cleanup old records (keep last 7 days)
+        cleanupOldRecords()
+    }
+
+    private func createRecordIdentifier(_ record: MergedRecord) -> String {
+        let components = [
+            record.dataType.rawValue,
+            String(record.timeWindow.start.timeIntervalSince1970),
+            String(record.value)
+        ]
+        return components.joined(separator: "-")
+    }
+
+    private func cleanupOldRecords() {
+        // Keep only identifiers that contain recent timestamps
+        let sevenDaysAgo = Date().addingTimeInterval(-7 * 24 * 60 * 60)
+        let cutoffTimestamp = sevenDaysAgo.timeIntervalSince1970
+
+        processedRecordIds = processedRecordIds.filter { identifier in
+            guard let parts = identifier.split(separator: "-").dropFirst().first,
+                  let timestamp = Double(parts) else {
+                return false
+            }
+            return timestamp > cutoffTimestamp
+        }
+
+        saveProcessedRecords()
+    }
+
+    // MARK: - Delete Records
+
+    func deleteHealthBridgeRecords(
+        for dataType: HealthDataType,
+        from startDate: Date,
+        to endDate: Date
+    ) async throws -> Int {
+        guard let sampleType = dataType.hkQuantityType else {
+            throw DataWriterError.unsupportedDataType
+        }
+
+        let predicate = HKQuery.predicateForSamples(
+            withStart: startDate,
+            end: endDate,
+            options: .strictStartDate
+        )
+
+        return try await withCheckedThrowingContinuation { continuation in
+            let query = HKSampleQuery(
+                sampleType: sampleType,
+                predicate: predicate,
+                limit: HKObjectQueryNoLimit,
+                sortDescriptors: nil
+            ) { [weak self] _, samplesOrNil, errorOrNil in
+                guard let self = self else {
+                    continuation.resume(throwing: DataWriterError.unknownError)
+                    return
+                }
+
+                if let error = errorOrNil {
+                    continuation.resume(throwing: error)
+                    return
+                }
+
+                guard let samples = samplesOrNil else {
+                    continuation.resume(returning: 0)
+                    return
+                }
+
+                // Filter to only HealthBridge records
+                let healthBridgeSamples = samples.filter { sample in
+                    if let metadata = sample.metadata,
+                       let source = metadata["HealthBridgeSource"] as? String {
+                        return source == HealthBridgeConstants.bundleIdentifier
+                    }
+                    return false
+                }
+
+                guard !healthBridgeSamples.isEmpty else {
+                    continuation.resume(returning: 0)
+                    return
+                }
+
+                Task {
+                    do {
+                        try await self.healthStore.delete(healthBridgeSamples)
+                        continuation.resume(returning: healthBridgeSamples.count)
+                    } catch {
+                        continuation.resume(throwing: error)
+                    }
+                }
+            }
+
+            healthStore.execute(query)
+        }
+    }
+}
+
+// MARK: - Supporting Types
+
+struct WrittenRecord: Identifiable, Codable {
+    let id: UUID
+    let mergedRecordId: UUID
+    let dataType: HealthDataType
+    let value: Double
+    let secondaryValue: Double?
+    let writtenAt: Date
+    let timeWindow: TimeWindow
+}
+
+struct FailedWrite: Identifiable {
+    let id = UUID()
+    let mergedRecord: MergedRecord
+    let error: Error
+    let attemptedAt: Date
+
+    var errorMessage: String {
+        error.localizedDescription
+    }
+}
+
+struct BatchWriteResult {
+    let successful: [WrittenRecord]
+    let failed: [FailedWrite]
+    let completedAt: Date
+
+    var successCount: Int { successful.count }
+    var failureCount: Int { failed.count }
+    var totalCount: Int { successCount + failureCount }
+
+    var successRate: Double {
+        guard totalCount > 0 else { return 1.0 }
+        return Double(successCount) / Double(totalCount)
+    }
+}
+
+// MARK: - Errors
+
+enum DataWriterError: LocalizedError {
+    case unsupportedDataType
+    case duplicateRecord
+    case missingSecondaryValue
+    case invalidValue(String)
+    case writeFailed(String)
+    case unknownError
+
+    var errorDescription: String? {
+        switch self {
+        case .unsupportedDataType:
+            return "Dieser Datentyp wird nicht unterstützt"
+        case .duplicateRecord:
+            return "Dieser Datensatz wurde bereits geschrieben"
+        case .missingSecondaryValue:
+            return "Fehlender sekundärer Wert (z.B. diastolischer Blutdruck)"
+        case .invalidValue(let message):
+            return "Ungültiger Wert: \(message)"
+        case .writeFailed(let message):
+            return "Schreiben fehlgeschlagen: \(message)"
+        case .unknownError:
+            return "Unbekannter Fehler"
+        }
+    }
+}
@@ -0,0 +1,391 @@
+import Foundation
+import HealthKit
+import Combine
+
+// MARK: - HealthKit Manager
+@MainActor
+class HealthKitManager: ObservableObject {
+    static let shared = HealthKitManager()
+
+    private let healthStore = HKHealthStore()
+
+    @Published var isAuthorized = false
+    @Published var authorizationStatus: [HealthDataType: HKAuthorizationStatus] = [:]
+    @Published var discoveredSources: [HealthSource] = []
+    @Published var sourceHealthStatus: [String: SourceHealthStatus] = [:]
+    @Published var lastError: Error?
+
+    private init() {}
+
+    // MARK: - Authorization
+
+    var allQuantityTypes: Set<HKQuantityType> {
+        var types = Set<HKQuantityType>()
+        for dataType in HealthDataType.allCases {
+            if let quantityType = dataType.hkQuantityType {
+                types.insert(quantityType)
+            }
+        }
+        return types
+    }
+
+    var allCategoryTypes: Set<HKCategoryType> {
+        var types = Set<HKCategoryType>()
+        for dataType in HealthDataType.allCases {
+            if let categoryType = dataType.hkCategoryType {
+                types.insert(categoryType)
+            }
+        }
+        return types
+    }
+
+    var allSampleTypes: Set<HKSampleType> {
+        var types = Set<HKSampleType>()
+        allQuantityTypes.forEach { types.insert($0) }
+        allCategoryTypes.forEach { types.insert($0) }
+        return types
+    }
+
+    func requestAuthorization() async throws {
+        guard HKHealthStore.isHealthDataAvailable() else {
+            throw HealthKitError.healthDataNotAvailable
+        }
+
+        let typesToRead = allSampleTypes
+        let typesToWrite = allQuantityTypes
+
+        try await healthStore.requestAuthorization(toShare: typesToWrite, read: typesToRead)
+        isAuthorized = true
+
+        await updateAuthorizationStatus()
+        await discoverSources()
+    }
+
+    func updateAuthorizationStatus() async {
+        for dataType in HealthDataType.allCases {
+            if let quantityType = dataType.hkQuantityType {
+                let status = healthStore.authorizationStatus(for: quantityType)
+                authorizationStatus[dataType] = status
+            } else if let categoryType = dataType.hkCategoryType {
+                let status = healthStore.authorizationStatus(for: categoryType)
+                authorizationStatus[dataType] = status
+            }
+        }
+    }
+
+    // MARK: - Source Discovery
+
+    func discoverSources() async {
+        var allSources: [String: HealthSource] = [:]
+
+        for dataType in HealthDataType.allCases {
+            guard let sampleType = dataType.hkQuantityType ?? dataType.hkCategoryType else {
+                continue
+            }
+
+            do {
+                let sources = try await fetchSources(for: sampleType)
+                for source in sources {
+                    if var existingSource = allSources[source.bundleIdentifier] {
+                        existingSource.supportedDataTypes.insert(dataType)
+                        allSources[source.bundleIdentifier] = existingSource
+                    } else {
+                        var newSource = source
+                        newSource.supportedDataTypes.insert(dataType)
+                        allSources[source.bundleIdentifier] = newSource
+                    }
+                }
+            } catch {
+                print("Failed to fetch sources for \(dataType): \(error)")
+            }
+        }
+
+        discoveredSources = Array(allSources.values).sorted { $0.category.priority > $1.category.priority }
+
+        // Update source health status
+        for source in discoveredSources {
+            await updateSourceHealth(source)
+        }
+    }
+
+    private func fetchSources(for sampleType: HKSampleType) async throws -> [HealthSource] {
+        let query = HKSourceQuery(sampleType: sampleType, samplePredicate: nil) { _, sourcesOrNil, errorOrNil in
+            // Handled via continuation
+        }
+
+        return try await withCheckedThrowingContinuation { continuation in
+            let query = HKSourceQuery(sampleType: sampleType, samplePredicate: nil) { _, sourcesOrNil, errorOrNil in
+                if let error = errorOrNil {
+                    continuation.resume(throwing: error)
+                    return
+                }
+
+                guard let sources = sourcesOrNil else {
+                    continuation.resume(returning: [])
+                    return
+                }
+
+                let healthSources = sources.map { HealthSource.from(hkSource: $0) }
+                continuation.resume(returning: healthSources)
+            }
+
+            healthStore.execute(query)
+        }
+    }
+
+    private func updateSourceHealth(_ source: HealthSource) async {
+        var recordCount = 0
+        var lastActivity: Date?
+
+        for dataType in source.supportedDataTypes {
+            if let quantityType = dataType.hkQuantityType {
+                let predicate = HKQuery.predicateForObjects(from: HKSource(bundleIdentifier: source.bundleIdentifier, name: source.name) )
+                // Simplified: just get count
+                if let count = try? await fetchRecordCount(for: quantityType, source: source) {
+                    recordCount += count
+                }
+                if let date = try? await fetchLastActivityDate(for: quantityType, source: source) {
+                    if lastActivity == nil || date > lastActivity! {
+                        lastActivity = date
+                    }
+                }
+            }
+        }
+
+        let status = SourceHealthStatus(
+            id: source.id,
+            source: source,
+            lastSync: lastActivity,
+            recordCount: recordCount,
+            dataGaps: [], // TODO: Implement gap detection
+            overallQuality: recordCount > 0 ? .complete : .missing
+        )
+
+        sourceHealthStatus[source.id] = status
+    }
+
+    private func fetchRecordCount(for sampleType: HKSampleType, source: HealthSource) async throws -> Int {
+        let calendar = Calendar.current
+        let now = Date()
+        let startOfDay = calendar.startOfDay(for: now)
+
+        let predicate = HKQuery.predicateForSamples(withStart: startOfDay, end: now, options: .strictStartDate)
+
+        return try await withCheckedThrowingContinuation { continuation in
+            let query = HKSampleQuery(
+                sampleType: sampleType,
+                predicate: predicate,
+                limit: HKObjectQueryNoLimit,
+                sortDescriptors: nil
+            ) { _, samplesOrNil, errorOrNil in
+                if let error = errorOrNil {
+                    continuation.resume(throwing: error)
+                    return
+                }
+
+                let samples = samplesOrNil ?? []
+                let matchingSamples = samples.filter { $0.sourceRevision.source.bundleIdentifier == source.bundleIdentifier }
+                continuation.resume(returning: matchingSamples.count)
+            }
+
+            self.healthStore.execute(query)
+        }
+    }
+
+    private func fetchLastActivityDate(for sampleType: HKSampleType, source: HealthSource) async throws -> Date? {
+        let sortDescriptor = NSSortDescriptor(key: HKSampleSortIdentifierEndDate, ascending: false)
+
+        return try await withCheckedThrowingContinuation { continuation in
+            let query = HKSampleQuery(
+                sampleType: sampleType,
+                predicate: nil,
+                limit: 1,
+                sortDescriptors: [sortDescriptor]
+            ) { _, samplesOrNil, errorOrNil in
+                if let error = errorOrNil {
+                    continuation.resume(throwing: error)
+                    return
+                }
+
+                let matchingSample = samplesOrNil?.first { $0.sourceRevision.source.bundleIdentifier == source.bundleIdentifier }
+                continuation.resume(returning: matchingSample?.endDate)
+            }
+
+            self.healthStore.execute(query)
+        }
+    }
+
+    // MARK: - Source Classification
+
+    func classifySource(_ source: HKSource) -> SourceCategory {
+        let bundleId = source.bundleIdentifier.lowercased()
+
+        if bundleId.contains("healthbridge") {
+            return .healthBridge
+        } else if bundleId.contains("apple.health") && !bundleId.contains("watch") {
+            return .iPhone
+        } else if bundleId.contains("apple") && bundleId.contains("watch") {
+            return .watch
+        } else if bundleId.contains("huawei") {
+            return .thirdPartyWatch
+        } else if bundleId.contains("samsung") || bundleId.contains("galaxy") {
+            return .thirdPartyWatch
+        } else if bundleId.contains("fitbit") {
+            return .thirdPartyWatch
+        } else if bundleId.contains("garmin") {
+            return .thirdPartyWatch
+        } else if bundleId.contains("polar") {
+            return .thirdPartyWatch
+        } else if bundleId.contains("withings") {
+            return .thirdPartyWatch
+        } else {
+            return .thirdPartyApp
+        }
+    }
+
+    func getSourceCapabilities(_ source: HealthSource) -> Set<HealthDataType> {
+        return source.supportedDataTypes
+    }
+
+    // MARK: - Data Fetching (Basic)
+
+    func fetchSamples(
+        for dataType: HealthDataType,
+        from startDate: Date,
+        to endDate: Date
+    ) async throws -> [HKSample] {
+        guard let sampleType = dataType.hkQuantityType ?? dataType.hkCategoryType else {
+            throw HealthKitError.unsupportedDataType
+        }
+
+        let predicate = HKQuery.predicateForSamples(
+            withStart: startDate,
+            end: endDate,
+            options: .strictStartDate
+        )
+
+        return try await withCheckedThrowingContinuation { continuation in
+            let query = HKSampleQuery(
+                sampleType: sampleType,
+                predicate: predicate,
+                limit: HKObjectQueryNoLimit,
+                sortDescriptors: [NSSortDescriptor(key: HKSampleSortIdentifierStartDate, ascending: true)]
+            ) { _, samplesOrNil, errorOrNil in
+                if let error = errorOrNil {
+                    continuation.resume(throwing: error)
+                    return
+                }
+                continuation.resume(returning: samplesOrNil ?? [])
+            }
+
+            self.healthStore.execute(query)
+        }
+    }
+
+    // MARK: - Data Writing
+
+    func writeSample(
+        dataType: HealthDataType,
+        value: Double,
+        secondaryValue: Double? = nil,
+        date: Date,
+        metadata: [String: Any]? = nil
+    ) async throws {
+        guard let quantityType = dataType.hkQuantityType else {
+            throw HealthKitError.unsupportedDataType
+        }
+
+        let quantity = HKQuantity(unit: dataType.hkUnit, doubleValue: value)
+        let sample = HKQuantitySample(
+            type: quantityType,
+            quantity: quantity,
+            start: date,
+            end: date,
+            metadata: metadata
+        )
+
+        try await healthStore.save(sample)
+    }
+
+    func writeBloodPressure(
+        systolic: Double,
+        diastolic: Double,
+        date: Date,
+        metadata: [String: Any]? = nil
+    ) async throws {
+        guard let systolicType = HKQuantityType.quantityType(forIdentifier: .bloodPressureSystolic),
+              let diastolicType = HKQuantityType.quantityType(forIdentifier: .bloodPressureDiastolic) else {
+            throw HealthKitError.unsupportedDataType
+        }
+
+        let systolicQuantity = HKQuantity(unit: .millimeterOfMercury(), doubleValue: systolic)
+        let diastolicQuantity = HKQuantity(unit: .millimeterOfMercury(), doubleValue: diastolic)
+
+        let systolicSample = HKQuantitySample(
+            type: systolicType,
+            quantity: systolicQuantity,
+            start: date,
+            end: date,
+            metadata: metadata
+        )
+
+        let diastolicSample = HKQuantitySample(
+            type: diastolicType,
+            quantity: diastolicQuantity,
+            start: date,
+            end: date,
+            metadata: metadata
+        )
+
+        // Create correlation for blood pressure
+        guard let correlationType = HKCorrelationType.correlationType(forIdentifier: .bloodPressure) else {
+            throw HealthKitError.unsupportedDataType
+        }
+
+        let correlation = HKCorrelation(
+            type: correlationType,
+            start: date,
+            end: date,
+            objects: [systolicSample, diastolicSample],
+            metadata: metadata
+        )
+
+        try await healthStore.save(correlation)
+    }
+}
+
+// MARK: - HealthKit Errors
+enum HealthKitError: LocalizedError {
+    case healthDataNotAvailable
+    case authorizationDenied
+    case unsupportedDataType
+    case noDataFound
+    case writeFailed(Error)
+    case queryFailed(Error)
+
+    var errorDescription: String? {
+        switch self {
+        case .healthDataNotAvailable:
+            return "Health-Daten sind auf diesem Gerät nicht verfügbar"
+        case .authorizationDenied:
+            return "Zugriff auf Health-Daten wurde verweigert"
+        case .unsupportedDataType:
+            return "Dieser Datentyp wird nicht unterstützt"
+        case .noDataFound:
+            return "Keine Daten gefunden"
+        case .writeFailed(let error):
+            return "Schreiben fehlgeschlagen: \(error.localizedDescription)"
+        case .queryFailed(let error):
+            return "Abfrage fehlgeschlagen: \(error.localizedDescription)"
+        }
+    }
+}
+
+// MARK: - HKSource Extension
+extension HKSource {
+    convenience init(bundleIdentifier: String, name: String) {
+        // Note: This is a workaround since HKSource doesn't have a public initializer
+        // In production, sources come from HealthKit queries
+        fatalError("HKSource cannot be initialized directly - use source from HKSample")
+    }
+}
@@ -0,0 +1,287 @@
+import Foundation
+import Combine
+
+// MARK: - Merge Engine
+@MainActor
+class MergeEngine: ObservableObject {
+    static let shared = MergeEngine()
+
+    private let ruleEngine = RuleEngine.shared
+    private let dataReader = DataReader.shared
+
+    @Published var pendingMerges: [MergeOperation] = []
+    @Published var completedMerges: [MergeOperation] = []
+    @Published var isMerging = false
+    @Published var mergeProgress: Double = 0
+
+    private init() {}
+
+    // MARK: - Analyze Window
+
+    func analyze(windowData: TimeWindowData) -> WindowAnalysis {
+        let readings = windowData.readings
+        let dataType = windowData.dataType
+
+        // No analysis needed for single reading
+        if readings.count <= 1 {
+            return WindowAnalysis(
+                windowData: windowData,
+                hasConflict: false,
+                conflictSeverity: nil,
+                recommendedReading: readings.first,
+                alternativeReadings: [],
+                confidence: .high,
+                analysisNotes: readings.isEmpty ? "Keine Daten" : "Einzelne Quelle"
+            )
+        }
+
+        // Apply rule to get recommendation
+        let result = ruleEngine.applyRule(to: readings, dataType: dataType)
+
+        // Calculate conflict severity
+        let values = readings.map { $0.value }.filter { $0 > 0 }
+        var severity: ConflictSeverity? = nil
+
+        if values.count >= 2, let min = values.min(), let max = values.max(), min > 0 {
+            let percentDiff = (max - min) / min * 100
+            if percentDiff >= 5 {
+                if percentDiff < 10 { severity = .minor }
+                else if percentDiff < 25 { severity = .moderate }
+                else if percentDiff < 50 { severity = .significant }
+                else { severity = .major }
+            }
+        }
+
+        let alternativeReadings = readings.filter { $0.id != result.selectedReading?.id }
+
+        return WindowAnalysis(
+            windowData: windowData,
+            hasConflict: windowData.hasConflict,
+            conflictSeverity: severity,
+            recommendedReading: result.selectedReading,
+            alternativeReadings: alternativeReadings,
+            confidence: result.confidence,
+            analysisNotes: result.reason
+        )
+    }
+
+    // MARK: - Resolve Conflict
+
+    func resolveConflict(_ conflict: Conflict, using result: RuleApplicationResult) -> ConflictResolution? {
+        guard let selectedReading = result.selectedReading else {
+            return nil
+        }
+
+        return ConflictResolution(
+            resolvedValue: selectedReading.value,
+            secondaryResolvedValue: selectedReading.secondaryValue,
+            winningSourceId: selectedReading.sourceId,
+            strategy: result.strategy,
+            isManual: result.strategy == .manual
+        )
+    }
+
+    func resolveConflictManually(
+        _ conflict: Conflict,
+        selectedReadingId: UUID
+    ) -> ConflictResolution? {
+        guard let selectedReading = conflict.readings.first(where: { $0.id == selectedReadingId }) else {
+            return nil
+        }
+
+        return ConflictResolution(
+            resolvedValue: selectedReading.value,
+            secondaryResolvedValue: selectedReading.secondaryValue,
+            winningSourceId: selectedReading.sourceId,
+            strategy: .manual,
+            isManual: true
+        )
+    }
+
+    // MARK: - Create Merged Record
+
+    func createMergedRecord(from conflict: Conflict, resolution: ConflictResolution) -> MergedRecord {
+        return MergedRecord(
+            id: UUID(),
+            dataType: conflict.dataType,
+            timeWindow: conflict.timeWindow,
+            value: resolution.resolvedValue,
+            secondaryValue: resolution.secondaryResolvedValue,
+            originalSourceId: resolution.winningSourceId,
+            strategy: resolution.strategy,
+            createdAt: Date(),
+            metadata: [
+                "conflictId": conflict.id.uuidString,
+                "originalSourceCount": String(conflict.readings.count),
+                "isManualResolution": String(resolution.isManual)
+            ]
+        )
+    }
+
+    // MARK: - Batch Processing
+
+    func processConflicts(_ conflicts: [Conflict]) async -> [MergeOperation] {
+        isMerging = true
+        defer { isMerging = false }
+
+        var operations: [MergeOperation] = []
+
+        for (index, conflict) in conflicts.enumerated() {
+            mergeProgress = Double(index) / Double(conflicts.count)
+
+            let result = ruleEngine.applyRule(to: conflict.readings, dataType: conflict.dataType)
+
+            if result.confidence == .requiresManual ||
+               ruleEngine.shouldRequestManualReview(readings: conflict.readings, dataType: conflict.dataType) {
+                // Add to pending for manual review
+                let operation = MergeOperation(
+                    conflict: conflict,
+                    status: .pendingManualReview,
+                    result: result
+                )
+                pendingMerges.append(operation)
+                operations.append(operation)
+            } else if let resolution = resolveConflict(conflict, using: result) {
+                // Auto-resolve
+                let mergedRecord = createMergedRecord(from: conflict, resolution: resolution)
+                let operation = MergeOperation(
+                    conflict: conflict,
+                    status: .resolved,
+                    result: result,
+                    resolution: resolution,
+                    mergedRecord: mergedRecord
+                )
+                completedMerges.append(operation)
+                operations.append(operation)
+            }
+        }
+
+        mergeProgress = 1.0
+        return operations
+    }
+
+    // MARK: - Daily Merge
+
+    func performDailyMerge(for date: Date) async throws -> DailyMergeReport {
+        let calendar = Calendar.current
+        let startOfDay = calendar.startOfDay(for: date)
+        let endOfDay = calendar.date(byAdding: .day, value: 1, to: startOfDay)!
+
+        var report = DailyMergeReport(date: date)
+
+        for dataType in HealthDataType.allCases {
+            do {
+                let windowData = try await dataReader.fetchData(
+                    for: dataType,
+                    from: startOfDay,
+                    to: endOfDay
+                )
+
+                let conflictWindows = windowData.filter { $0.hasConflict }
+                report.totalConflicts += conflictWindows.count
+
+                for window in conflictWindows {
+                    let analysis = analyze(windowData: window)
+
+                    if analysis.confidence == .requiresManual {
+                        report.pendingManualReview += 1
+                    } else {
+                        report.autoResolved += 1
+                    }
+
+                    report.analysesByType[dataType, default: []].append(analysis)
+                }
+            } catch {
+                report.errors.append("Fehler bei \(dataType.displayName): \(error.localizedDescription)")
+            }
+        }
+
+        return report
+    }
+}
+
+// MARK: - Supporting Types
+
+struct WindowAnalysis {
+    let windowData: TimeWindowData
+    let hasConflict: Bool
+    let conflictSeverity: ConflictSeverity?
+    let recommendedReading: SourceReading?
+    let alternativeReadings: [SourceReading]
+    let confidence: RuleConfidence
+    let analysisNotes: String
+
+    var recommendedValue: Double? {
+        recommendedReading?.value
+    }
+
+    var valueDifference: Double? {
+        guard let recommended = recommendedReading?.value,
+              let alternative = alternativeReadings.first?.value else {
+            return nil
+        }
+        return abs(recommended - alternative)
+    }
+}
+
+struct MergeOperation: Identifiable {
+    let id = UUID()
+    let conflict: Conflict
+    var status: MergeStatus
+    let result: RuleApplicationResult
+    var resolution: ConflictResolution?
+    var mergedRecord: MergedRecord?
+    let createdAt = Date()
+    var processedAt: Date?
+
+    enum MergeStatus {
+        case pending
+        case pendingManualReview
+        case resolved
+        case written
+        case failed
+    }
+}
+
+struct MergedRecord: Identifiable, Codable {
+    let id: UUID
+    let dataType: HealthDataType
+    let timeWindow: TimeWindow
+    let value: Double
+    let secondaryValue: Double?
+    let originalSourceId: String
+    let strategy: MergeStrategy
+    let createdAt: Date
+    var writtenAt: Date?
+    var healthKitRecordId: String?
+    var metadata: [String: String]
+
+    var formattedValue: String {
+        if value == floor(value) {
+            return String(format: "%.0f", value)
+        }
+        return String(format: "%.1f", value)
+    }
+}
+
+struct DailyMergeReport {
+    let date: Date
+    var totalConflicts = 0
+    var autoResolved = 0
+    var pendingManualReview = 0
+    var analysesByType: [HealthDataType: [WindowAnalysis]] = [:]
+    var errors: [String] = []
+    let generatedAt = Date()
+
+    var successRate: Double {
+        guard totalConflicts > 0 else { return 1.0 }
+        return Double(autoResolved) / Double(totalConflicts)
+    }
+
+    var summary: String {
+        if totalConflicts == 0 {
+            return "Keine Konflikte gefunden"
+        }
+        return "\(autoResolved)/\(totalConflicts) automatisch gelöst, \(pendingManualReview) zur Prüfung"
+    }
+}
@@ -0,0 +1,571 @@
+import Foundation
+import Combine
+
+// MARK: - Rule Engine
+@MainActor
+class RuleEngine: ObservableObject {
+    static let shared = RuleEngine()
+
+    @Published var rules: [HealthDataType: MergeRule] = [:]
+    @Published var isLoaded = false
+
+    private let storage = RuleStorageManager()
+    private let sourceManager = SourceManager.shared
+
+    private init() {
+        loadRules()
+    }
+
+    // MARK: - Rule Loading
+
+    func loadRules() {
+        let savedRules = storage.loadRules()
+
+        if savedRules.isEmpty {
+            // Initialize with defaults
+            for dataType in HealthDataType.allCases {
+                rules[dataType] = MergeRule.defaultRule(for: dataType)
+            }
+            saveRules()
+        } else {
+            rules = savedRules
+        }
+
+        isLoaded = true
+    }
+
+    func saveRules() {
+        storage.saveRules(rules)
+    }
+
+    // MARK: - Rule Access
+
+    func getRule(for dataType: HealthDataType) -> MergeRule {
+        return rules[dataType] ?? MergeRule.defaultRule(for: dataType)
+    }
+
+    func setRule(_ rule: MergeRule, for dataType: HealthDataType) {
+        rules[dataType] = rule
+        saveRules()
+    }
+
+    func resetToDefault(for dataType: HealthDataType) {
+        rules[dataType] = MergeRule.defaultRule(for: dataType)
+        saveRules()
+    }
+
+    func resetAllToDefaults() {
+        for dataType in HealthDataType.allCases {
+            rules[dataType] = MergeRule.defaultRule(for: dataType)
+        }
+        saveRules()
+    }
+
+    // MARK: - Rule Application
+
+    func applyRule(
+        to readings: [SourceReading],
+        dataType: HealthDataType
+    ) -> RuleApplicationResult {
+        let rule = getRule(for: dataType)
+
+        // Filter out empty/zero readings for most strategies
+        let validReadings = readings.filter { $0.value > 0 || $0.quality == .complete }
+
+        guard !validReadings.isEmpty else {
+            return RuleApplicationResult(
+                selectedReading: nil,
+                strategy: rule.strategy,
+                confidence: .low,
+                reason: "Keine gültigen Werte vorhanden"
+            )
+        }
+
+        // If only one valid reading, no conflict
+        if validReadings.count == 1 {
+            return RuleApplicationResult(
+                selectedReading: validReadings[0],
+                strategy: rule.strategy,
+                confidence: .high,
+                reason: "Nur eine Quelle verfügbar"
+            )
+        }
+
+        // Apply strategy
+        switch rule.strategy {
+        case .exclusive:
+            return applyExclusiveStrategy(readings: validReadings, rule: rule)
+
+        case .priority:
+            return applyPriorityStrategy(readings: validReadings, rule: rule, dataType: dataType)
+
+        case .higherWins:
+            return applyHigherWinsStrategy(readings: validReadings, rule: rule)
+
+        case .lowerWins:
+            return applyLowerWinsStrategy(readings: validReadings, rule: rule)
+
+        case .average:
+            return applyAverageStrategy(readings: validReadings, rule: rule)
+
+        case .coverage:
+            return applyCoverageStrategy(readings: validReadings, rule: rule)
+
+        case .coverageThenHigher:
+            return applyCoverageThenHigherStrategy(readings: validReadings, rule: rule)
+
+        case .mostRecent:
+            return applyMostRecentStrategy(readings: validReadings, rule: rule)
+
+        case .manual:
+            return RuleApplicationResult(
+                selectedReading: nil,
+                strategy: .manual,
+                confidence: .requiresManual,
+                reason: "Manuelle Entscheidung erforderlich"
+            )
+        }
+    }
+
+    // MARK: - Strategy Implementations
+
+    private func applyExclusiveStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        // If primary source is specified, use it
+        if let primaryId = rule.primarySourceId,
+           let reading = readings.first(where: { $0.sourceId == primaryId }) {
+            return RuleApplicationResult(
+                selectedReading: reading,
+                strategy: .exclusive,
+                confidence: .high,
+                reason: "Exklusive Quelle: \(reading.sourceName)"
+            )
+        }
+
+        // Otherwise use highest priority source
+        let sorted = readings.sorted { $0.sourceCategory.priority > $1.sourceCategory.priority }
+        if let first = sorted.first {
+            return RuleApplicationResult(
+                selectedReading: first,
+                strategy: .exclusive,
+                confidence: .high,
+                reason: "Höchste Priorität: \(first.sourceName)"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .exclusive,
+            confidence: .low,
+            reason: "Keine geeignete Quelle gefunden"
+        )
+    }
+
+    private func applyPriorityStrategy(
+        readings: [SourceReading],
+        rule: MergeRule,
+        dataType: HealthDataType
+    ) -> RuleApplicationResult {
+        // Sort by user-defined priority, then by category priority
+        let sorted = readings.sorted { r1, r2 in
+            let p1 = rule.sourcePriorities[r1.sourceId] ?? r1.sourceCategory.priority
+            let p2 = rule.sourcePriorities[r2.sourceId] ?? r2.sourceCategory.priority
+            return p1 > p2
+        }
+
+        if let first = sorted.first {
+            return RuleApplicationResult(
+                selectedReading: first,
+                strategy: .priority,
+                confidence: .high,
+                reason: "Höchste Priorität: \(first.sourceName)"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .priority,
+            confidence: .low,
+            reason: "Keine Quelle mit Priorität gefunden"
+        )
+    }
+
+    private func applyHigherWinsStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        let sorted = readings.sorted { $0.value > $1.value }
+
+        if let highest = sorted.first {
+            // Check if there's a significant difference
+            let values = readings.map { $0.value }
+            let spread = (values.max() ?? 0) - (values.min() ?? 0)
+            let avgValue = values.reduce(0, +) / Double(values.count)
+            let spreadPercent = avgValue > 0 ? (spread / avgValue) * 100 : 0
+
+            let confidence: RuleConfidence = spreadPercent < 10 ? .high : .medium
+
+            return RuleApplicationResult(
+                selectedReading: highest,
+                strategy: .higherWins,
+                confidence: confidence,
+                reason: "Höchster Wert: \(highest.formattedValue) von \(highest.sourceName)"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .higherWins,
+            confidence: .low,
+            reason: "Keine Werte zum Vergleich"
+        )
+    }
+
+    private func applyLowerWinsStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        let sorted = readings.sorted { $0.value < $1.value }
+
+        if let lowest = sorted.first {
+            return RuleApplicationResult(
+                selectedReading: lowest,
+                strategy: .lowerWins,
+                confidence: .medium,
+                reason: "Niedrigster Wert: \(lowest.formattedValue) von \(lowest.sourceName)"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .lowerWins,
+            confidence: .low,
+            reason: "Keine Werte zum Vergleich"
+        )
+    }
+
+    private func applyAverageStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        let values = readings.map { $0.value }
+        let average = values.reduce(0, +) / Double(values.count)
+
+        // Create a synthetic reading for the average
+        let syntheticReading = SourceReading(
+            sourceId: HealthBridgeConstants.bundleIdentifier,
+            sourceName: "Durchschnitt",
+            sourceCategory: .healthBridge,
+            value: average,
+            timestamp: readings.first?.timestamp ?? Date(),
+            quality: .complete
+        )
+
+        return RuleApplicationResult(
+            selectedReading: syntheticReading,
+            strategy: .average,
+            confidence: .medium,
+            reason: "Durchschnitt aus \(readings.count) Quellen"
+        )
+    }
+
+    private func applyCoverageStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        // Prefer readings with complete quality
+        let completeReadings = readings.filter { $0.quality == .complete }
+
+        if completeReadings.count == 1 {
+            return RuleApplicationResult(
+                selectedReading: completeReadings[0],
+                strategy: .coverage,
+                confidence: .high,
+                reason: "Einzige Quelle mit vollständigen Daten: \(completeReadings[0].sourceName)"
+            )
+        }
+
+        // If multiple complete readings, fall back to priority
+        if !completeReadings.isEmpty {
+            let sorted = completeReadings.sorted { $0.sourceCategory.priority > $1.sourceCategory.priority }
+            if let first = sorted.first {
+                return RuleApplicationResult(
+                    selectedReading: first,
+                    strategy: .coverage,
+                    confidence: .medium,
+                    reason: "Mehrere Quellen verfügbar, gewählt: \(first.sourceName)"
+                )
+            }
+        }
+
+        // No complete readings, use any reading with highest priority
+        let sorted = readings.sorted { $0.sourceCategory.priority > $1.sourceCategory.priority }
+        if let first = sorted.first {
+            return RuleApplicationResult(
+                selectedReading: first,
+                strategy: .coverage,
+                confidence: .low,
+                reason: "Keine vollständigen Daten, gewählt: \(first.sourceName)"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .coverage,
+            confidence: .low,
+            reason: "Keine Quelle mit Daten gefunden"
+        )
+    }
+
+    private func applyCoverageThenHigherStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        // First check if one source has data and others don't (coverage)
+        let nonZeroReadings = readings.filter { $0.value > 0 }
+        let zeroReadings = readings.filter { $0.value == 0 }
+
+        // If only one source has data, it wins on coverage
+        if nonZeroReadings.count == 1 && !zeroReadings.isEmpty {
+            return RuleApplicationResult(
+                selectedReading: nonZeroReadings[0],
+                strategy: .coverageThenHigher,
+                confidence: .high,
+                reason: "Einzige Quelle mit Daten: \(nonZeroReadings[0].sourceName)"
+            )
+        }
+
+        // Multiple sources have data, use higher wins
+        if nonZeroReadings.count > 1 {
+            let sorted = nonZeroReadings.sorted { $0.value > $1.value }
+            if let highest = sorted.first {
+                return RuleApplicationResult(
+                    selectedReading: highest,
+                    strategy: .coverageThenHigher,
+                    confidence: .medium,
+                    reason: "Höherer Wert bei Konflikt: \(highest.formattedValue) von \(highest.sourceName)"
+                )
+            }
+        }
+
+        // Fallback
+        if let first = readings.first {
+            return RuleApplicationResult(
+                selectedReading: first,
+                strategy: .coverageThenHigher,
+                confidence: .low,
+                reason: "Fallback auf erste Quelle"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .coverageThenHigher,
+            confidence: .low,
+            reason: "Keine Daten verfügbar"
+        )
+    }
+
+    private func applyMostRecentStrategy(
+        readings: [SourceReading],
+        rule: MergeRule
+    ) -> RuleApplicationResult {
+        let sorted = readings.sorted { $0.timestamp > $1.timestamp }
+
+        if let mostRecent = sorted.first {
+            return RuleApplicationResult(
+                selectedReading: mostRecent,
+                strategy: .mostRecent,
+                confidence: .high,
+                reason: "Neuester Wert von \(mostRecent.sourceName)"
+            )
+        }
+
+        return RuleApplicationResult(
+            selectedReading: nil,
+            strategy: .mostRecent,
+            confidence: .low,
+            reason: "Keine Zeitstempel verfügbar"
+        )
+    }
+
+    // MARK: - Threshold Check
+
+    func shouldRequestManualReview(
+        readings: [SourceReading],
+        dataType: HealthDataType
+    ) -> Bool {
+        let rule = getRule(for: dataType)
+
+        guard let threshold = rule.thresholdForManualReview else {
+            return rule.strategy == .manual
+        }
+
+        let values = readings.map { $0.value }.filter { $0 > 0 }
+        guard values.count >= 2,
+              let min = values.min(),
+              let max = values.max(),
+              min > 0 else {
+            return false
+        }
+
+        let percentDiff = (max - min) / min * 100
+        return percentDiff > threshold
+    }
+}
+
+// MARK: - Rule Application Result
+struct RuleApplicationResult {
+    let selectedReading: SourceReading?
+    let strategy: MergeStrategy
+    let confidence: RuleConfidence
+    let reason: String
+
+    var resolvedValue: Double? {
+        selectedReading?.value
+    }
+
+    var winningSourceId: String? {
+        selectedReading?.sourceId
+    }
+}
+
+enum RuleConfidence: String, Codable {
+    case high = "high"
+    case medium = "medium"
+    case low = "low"
+    case requiresManual = "requires_manual"
+
+    var displayName: String {
+        switch self {
+        case .high: return "Hohe Sicherheit"
+        case .medium: return "Mittlere Sicherheit"
+        case .low: return "Geringe Sicherheit"
+        case .requiresManual: return "Manuelle Prüfung"
+        }
+    }
+
+    var icon: String {
+        switch self {
+        case .high: return "checkmark.seal.fill"
+        case .medium: return "checkmark.seal"
+        case .low: return "questionmark.circle"
+        case .requiresManual: return "hand.raised.fill"
+        }
+    }
+}
+
+// MARK: - Rule Storage Manager
+class RuleStorageManager {
+    private let userDefaults = UserDefaults.standard
+    private let rulesKey = "healthbridge.merge.rules"
+
+    func saveRules(_ rules: [HealthDataType: MergeRule]) {
+        do {
+            let data = try JSONEncoder().encode(rules)
+            userDefaults.set(data, forKey: rulesKey)
+        } catch {
+            print("Failed to save rules: \(error)")
+        }
+    }
+
+    func loadRules() -> [HealthDataType: MergeRule] {
+        guard let data = userDefaults.data(forKey: rulesKey) else {
+            return [:]
+        }
+
+        do {
+            return try JSONDecoder().decode([HealthDataType: MergeRule].self, from: data)
+        } catch {
+            print("Failed to load rules: \(error)")
+            return [:]
+        }
+    }
+}
+
+// MARK: - Blood Pressure Handler
+class BloodPressureHandler {
+    static let shared = BloodPressureHandler()
+
+    struct ValidationResult {
+        let isValid: Bool
+        let issues: [String]
+    }
+
+    func validate(systolic: Double, diastolic: Double) -> ValidationResult {
+        var issues: [String] = []
+
+        // Range validation
+        if systolic < 70 || systolic > 200 {
+            issues.append("Systolischer Wert ausserhalb des Normalbereichs (70-200 mmHg)")
+        }
+
+        if diastolic < 40 || diastolic > 130 {
+            issues.append("Diastolischer Wert ausserhalb des Normalbereichs (40-130 mmHg)")
+        }
+
+        // Plausibility check
+        if diastolic >= systolic {
+            issues.append("Diastolischer Wert muss kleiner als systolischer Wert sein")
+        }
+
+        if systolic - diastolic < 20 {
+            issues.append("Pulsdruck zu gering (< 20 mmHg)")
+        }
+
+        if systolic - diastolic > 100 {
+            issues.append("Pulsdruck zu hoch (> 100 mmHg)")
+        }
+
+        return ValidationResult(isValid: issues.isEmpty, issues: issues)
+    }
+
+    func classifyBloodPressure(systolic: Double, diastolic: Double) -> BloodPressureClassification {
+        if systolic < 120 && diastolic < 80 {
+            return .normal
+        } else if systolic < 130 && diastolic < 80 {
+            return .elevated
+        } else if systolic < 140 || diastolic < 90 {
+            return .hypertensionStage1
+        } else if systolic < 180 || diastolic < 120 {
+            return .hypertensionStage2
+        } else {
+            return .hypertensiveCrisis
+        }
+    }
+
+    enum BloodPressureClassification: String {
+        case normal = "Normal"
+        case elevated = "Erhöht"
+        case hypertensionStage1 = "Bluthochdruck Stufe 1"
+        case hypertensionStage2 = "Bluthochdruck Stufe 2"
+        case hypertensiveCrisis = "Hypertensive Krise"
+
+        var color: String {
+            switch self {
+            case .normal: return "green"
+            case .elevated: return "yellow"
+            case .hypertensionStage1: return "orange"
+            case .hypertensionStage2: return "red"
+            case .hypertensiveCrisis: return "purple"
+            }
+        }
+
+        var recommendation: String {
+            switch self {
+            case .normal:
+                return "Weiter so! Regelmässige Kontrolle empfohlen."
+            case .elevated:
+                return "Lebensstiländerungen empfohlen. Mehr Bewegung, weniger Salz."
+            case .hypertensionStage1:
+                return "Arztbesuch empfohlen. Möglicherweise Medikation erforderlich."
+            case .hypertensionStage2:
+                return "Zeitnaher Arztbesuch erforderlich. Medikation wahrscheinlich notwendig."
+            case .hypertensiveCrisis:
+                return "SOFORT medizinische Hilfe aufsuchen!"
+            }
+        }
+    }
+}
@@ -0,0 +1,409 @@
+import Foundation
+import HealthKit
+import Combine
+
+// MARK: - Source Manager
+@MainActor
+class SourceManager: ObservableObject {
+    static let shared = SourceManager()
+
+    @Published var sources: [HealthSource] = []
+    @Published var sourceProfiles: [String: SourceProfile] = [:]
+    @Published var isDiscovering = false
+
+    private let healthKitManager = HealthKitManager.shared
+    private let storage = SourceStorageManager()
+
+    private init() {}
+
+    // MARK: - Source Discovery
+
+    func discoverSources() async {
+        isDiscovering = true
+        defer { isDiscovering = false }
+
+        await healthKitManager.discoverSources()
+        sources = healthKitManager.discoveredSources
+
+        // Load saved source profiles and merge with discovered sources
+        let savedProfiles = storage.loadSourceProfiles()
+        for source in sources {
+            if let savedProfile = savedProfiles[source.bundleIdentifier] {
+                sourceProfiles[source.bundleIdentifier] = savedProfile
+            } else {
+                sourceProfiles[source.bundleIdentifier] = SourceProfile(source: source)
+            }
+        }
+    }
+
+    // MARK: - Source Classification
+
+    func classifySource(_ bundleIdentifier: String) -> SourceCategory {
+        let lowercased = bundleIdentifier.lowercased()
+
+        // HealthBridge
+        if lowercased.contains("healthbridge") {
+            return .healthBridge
+        }
+
+        // Apple Devices
+        if lowercased.contains("com.apple") {
+            if lowercased.contains("watch") || lowercased.contains("nano") {
+                return .watch
+            }
+            if lowercased.contains("health") {
+                return .iPhone
+            }
+        }
+
+        // Known Watch Brands
+        let watchBrands = ["huawei", "samsung", "galaxy", "fitbit", "garmin", "polar",
+                          "withings", "amazfit", "xiaomi", "honor", "oppo", "suunto",
+                          "coros", "whoop", "oura"]
+        for brand in watchBrands {
+            if lowercased.contains(brand) {
+                return .thirdPartyWatch
+            }
+        }
+
+        // Known Health Apps
+        let healthApps = ["strava", "nike", "adidas", "runtastic", "runkeeper",
+                         "mapmyrun", "endomondo", "myfitnesspal", "flo", "clue"]
+        for app in healthApps {
+            if lowercased.contains(app) {
+                return .thirdPartyApp
+            }
+        }
+
+        return .unknown
+    }
+
+    // MARK: - Source Capabilities
+
+    func getSourceCapabilities(_ source: HealthSource) -> SourceCapabilities {
+        let category = source.category
+
+        switch category {
+        case .iPhone:
+            return SourceCapabilities(
+                canMeasureSteps: true,
+                canMeasureDistance: true,
+                canMeasureFloors: true,
+                canMeasureHeartRate: false,
+                canMeasureBloodPressure: false,
+                canMeasureBloodOxygen: false,
+                canMeasureSleep: false,
+                canMeasureWorkouts: true,
+                hasGPS: true,
+                hasBarometer: true,
+                hasAccelerometer: true
+            )
+
+        case .watch:
+            return SourceCapabilities(
+                canMeasureSteps: true,
+                canMeasureDistance: true,
+                canMeasureFloors: false,
+                canMeasureHeartRate: true,
+                canMeasureBloodPressure: false,
+                canMeasureBloodOxygen: true,
+                canMeasureSleep: true,
+                canMeasureWorkouts: true,
+                hasGPS: true,
+                hasBarometer: false,
+                hasAccelerometer: true
+            )
+
+        case .thirdPartyWatch:
+            // Check for specific features based on name
+            let name = source.name.lowercased()
+            let isHuaweiD2 = name.contains("huawei") && (name.contains("d2") || name.contains("watch d"))
+
+            return SourceCapabilities(
+                canMeasureSteps: true,
+                canMeasureDistance: true,
+                canMeasureFloors: false,
+                canMeasureHeartRate: true,
+                canMeasureBloodPressure: isHuaweiD2, // Huawei Watch D2 has BP sensor
+                canMeasureBloodOxygen: true,
+                canMeasureSleep: true,
+                canMeasureWorkouts: true,
+                hasGPS: true,
+                hasBarometer: false,
+                hasAccelerometer: true
+            )
+
+        case .thirdPartyApp:
+            return SourceCapabilities(
+                canMeasureSteps: true,
+                canMeasureDistance: true,
+                canMeasureFloors: false,
+                canMeasureHeartRate: false,
+                canMeasureBloodPressure: false,
+                canMeasureBloodOxygen: false,
+                canMeasureSleep: false,
+                canMeasureWorkouts: true,
+                hasGPS: true,
+                hasBarometer: false,
+                hasAccelerometer: false
+            )
+
+        case .healthBridge, .unknown:
+            return SourceCapabilities.empty
+        }
+    }
+
+    // MARK: - Source Health
+
+    func getSourceHealth(_ source: HealthSource) async -> SourceHealthReport {
+        var dataGaps: [HealthDataType: [TimeWindow]] = [:]
+        var lastActivityByType: [HealthDataType: Date] = [:]
+        var recordCountByType: [HealthDataType: Int] = [:]
+
+        let calendar = Calendar.current
+        let now = Date()
+        let yesterday = calendar.date(byAdding: .day, value: -1, to: now)!
+
+        for dataType in source.supportedDataTypes {
+            do {
+                let samples = try await healthKitManager.fetchSamples(
+                    for: dataType,
+                    from: yesterday,
+                    to: now
+                )
+
+                let matchingSamples = samples.filter {
+                    $0.sourceRevision.source.bundleIdentifier == source.bundleIdentifier
+                }
+
+                recordCountByType[dataType] = matchingSamples.count
+
+                if let lastSample = matchingSamples.last {
+                    lastActivityByType[dataType] = lastSample.endDate
+                }
+
+                // Detect gaps
+                let gaps = detectDataGaps(
+                    in: matchingSamples,
+                    from: yesterday,
+                    to: now,
+                    expectedInterval: 15 * 60 // 15 minutes
+                )
+                if !gaps.isEmpty {
+                    dataGaps[dataType] = gaps
+                }
+            } catch {
+                print("Error checking health for \(dataType): \(error)")
+            }
+        }
+
+        let overallQuality: DataQuality
+        if recordCountByType.values.reduce(0, +) == 0 {
+            overallQuality = .missing
+        } else if dataGaps.isEmpty {
+            overallQuality = .complete
+        } else {
+            overallQuality = .partial
+        }
+
+        return SourceHealthReport(
+            source: source,
+            lastActivityByType: lastActivityByType,
+            recordCountByType: recordCountByType,
+            dataGaps: dataGaps,
+            overallQuality: overallQuality,
+            checkedAt: Date()
+        )
+    }
+
+    private func detectDataGaps(
+        in samples: [HKSample],
+        from start: Date,
+        to end: Date,
+        expectedInterval: TimeInterval
+    ) -> [TimeWindow] {
+        guard !samples.isEmpty else {
+            return [TimeWindow(start: start, end: end)]
+        }
+
+        var gaps: [TimeWindow] = []
+        let sortedSamples = samples.sorted { $0.startDate < $1.startDate }
+
+        // Check gap at beginning
+        if let firstSample = sortedSamples.first,
+           firstSample.startDate.timeIntervalSince(start) > expectedInterval * 2 {
+            gaps.append(TimeWindow(start: start, end: firstSample.startDate))
+        }
+
+        // Check gaps between samples
+        for i in 0..<(sortedSamples.count - 1) {
+            let currentEnd = sortedSamples[i].endDate
+            let nextStart = sortedSamples[i + 1].startDate
+            let gap = nextStart.timeIntervalSince(currentEnd)
+
+            if gap > expectedInterval * 2 {
+                gaps.append(TimeWindow(start: currentEnd, end: nextStart))
+            }
+        }
+
+        // Check gap at end
+        if let lastSample = sortedSamples.last,
+           end.timeIntervalSince(lastSample.endDate) > expectedInterval * 2 {
+            gaps.append(TimeWindow(start: lastSample.endDate, end: end))
+        }
+
+        return gaps
+    }
+
+    // MARK: - Priority Management
+
+    func setPriority(_ priority: Int, for source: HealthSource, dataType: HealthDataType) {
+        guard var profile = sourceProfiles[source.bundleIdentifier] else { return }
+        profile.priorities[dataType] = priority
+        sourceProfiles[source.bundleIdentifier] = profile
+        storage.saveSourceProfiles(sourceProfiles)
+    }
+
+    func getPriority(for source: HealthSource, dataType: HealthDataType) -> Int {
+        if let profile = sourceProfiles[source.bundleIdentifier],
+           let priority = profile.priorities[dataType] {
+            return priority
+        }
+        return source.category.priority
+    }
+
+    func getSourcesByPriority(for dataType: HealthDataType) -> [HealthSource] {
+        return sources
+            .filter { $0.supportedDataTypes.contains(dataType) }
+            .sorted { getPriority(for: $0, dataType: dataType) > getPriority(for: $1, dataType: dataType) }
+    }
+
+    // MARK: - Source Enable/Disable
+
+    func setEnabled(_ enabled: Bool, for source: HealthSource) {
+        guard var profile = sourceProfiles[source.bundleIdentifier] else { return }
+        profile.isEnabled = enabled
+        sourceProfiles[source.bundleIdentifier] = profile
+        storage.saveSourceProfiles(sourceProfiles)
+    }
+
+    func isEnabled(_ source: HealthSource) -> Bool {
+        return sourceProfiles[source.bundleIdentifier]?.isEnabled ?? true
+    }
+}
+
+// MARK: - Source Profile
+struct SourceProfile: Codable {
+    let bundleIdentifier: String
+    var priorities: [HealthDataType: Int]
+    var isEnabled: Bool
+    var customName: String?
+    var notes: String?
+    let addedAt: Date
+
+    init(source: HealthSource) {
+        self.bundleIdentifier = source.bundleIdentifier
+        self.priorities = [:]
+        self.isEnabled = true
+        self.customName = nil
+        self.notes = nil
+        self.addedAt = Date()
+    }
+}
+
+// MARK: - Source Capabilities
+struct SourceCapabilities {
+    let canMeasureSteps: Bool
+    let canMeasureDistance: Bool
+    let canMeasureFloors: Bool
+    let canMeasureHeartRate: Bool
+    let canMeasureBloodPressure: Bool
+    let canMeasureBloodOxygen: Bool
+    let canMeasureSleep: Bool
+    let canMeasureWorkouts: Bool
+    let hasGPS: Bool
+    let hasBarometer: Bool
+    let hasAccelerometer: Bool
+
+    static let empty = SourceCapabilities(
+        canMeasureSteps: false,
+        canMeasureDistance: false,
+        canMeasureFloors: false,
+        canMeasureHeartRate: false,
+        canMeasureBloodPressure: false,
+        canMeasureBloodOxygen: false,
+        canMeasureSleep: false,
+        canMeasureWorkouts: false,
+        hasGPS: false,
+        hasBarometer: false,
+        hasAccelerometer: false
+    )
+
+    var supportedDataTypes: Set<HealthDataType> {
+        var types = Set<HealthDataType>()
+        if canMeasureSteps { types.insert(.steps) }
+        if canMeasureDistance { types.insert(.distance) }
+        if canMeasureFloors { types.insert(.floorsClimbed) }
+        if canMeasureHeartRate {
+            types.insert(.heartRate)
+            types.insert(.restingHeartRate)
+        }
+        if canMeasureBloodPressure {
+            types.insert(.bloodPressureSystolic)
+            types.insert(.bloodPressureDiastolic)
+        }
+        if canMeasureBloodOxygen { types.insert(.bloodOxygen) }
+        if canMeasureSleep { types.insert(.sleep) }
+        return types
+    }
+}
+
+// MARK: - Source Health Report
+struct SourceHealthReport {
+    let source: HealthSource
+    let lastActivityByType: [HealthDataType: Date]
+    let recordCountByType: [HealthDataType: Int]
+    let dataGaps: [HealthDataType: [TimeWindow]]
+    let overallQuality: DataQuality
+    let checkedAt: Date
+
+    var lastOverallActivity: Date? {
+        lastActivityByType.values.max()
+    }
+
+    var totalRecordCount: Int {
+        recordCountByType.values.reduce(0, +)
+    }
+
+    var hasSignificantGaps: Bool {
+        dataGaps.values.flatMap { $0 }.contains { $0.duration > 3600 } // > 1 hour gap
+    }
+}
+
+// MARK: - Source Storage Manager
+class SourceStorageManager {
+    private let userDefaults = UserDefaults.standard
+    private let profilesKey = "healthbridge.source.profiles"
+
+    func saveSourceProfiles(_ profiles: [String: SourceProfile]) {
+        do {
+            let data = try JSONEncoder().encode(profiles)
+            userDefaults.set(data, forKey: profilesKey)
+        } catch {
+            print("Failed to save source profiles: \(error)")
+        }
+    }
+
+    func loadSourceProfiles() -> [String: SourceProfile] {
+        guard let data = userDefaults.data(forKey: profilesKey) else {
+            return [:]
+        }
+
+        do {
+            return try JSONDecoder().decode([String: SourceProfile].self, from: data)
+        } catch {
+            print("Failed to load source profiles: \(error)")
+            return [:]
+        }
+    }
+}
@@ -0,0 +1,301 @@
+import Foundation
+import Combine
+import UserNotifications
+
+// MARK: - Sync Coordinator
+@MainActor
+class SyncCoordinator: ObservableObject {
+    static let shared = SyncCoordinator()
+
+    private let healthKitManager = HealthKitManager.shared
+    private let sourceManager = SourceManager.shared
+    private let dataReader = DataReader.shared
+    private let ruleEngine = RuleEngine.shared
+    private let mergeEngine = MergeEngine.shared
+    private let dataWriter = DataWriter.shared
+
+    @Published var isSyncing = false
+    @Published var syncProgress: Double = 0
+    @Published var lastSyncDate: Date?
+    @Published var lastSyncResult: SyncResult?
+    @Published var pendingConflicts: [Conflict] = []
+    @Published var syncHistory: [SyncResult] = []
+
+    private let syncHistoryKey = "healthbridge.sync.history"
+    private let maxHistoryItems = 50
+
+    private init() {
+        loadSyncHistory()
+    }
+
+    // MARK: - Main Sync
+
+    func performSync(
+        for date: Date = Date(),
+        dataTypes: [HealthDataType] = HealthDataType.allCases
+    ) async throws {
+        guard !isSyncing else { return }
+
+        isSyncing = true
+        syncProgress = 0
+        defer { isSyncing = false }
+
+        let startTime = Date()
+        var result = SyncResult(startedAt: startTime)
+
+        do {
+            // Step 1: Refresh sources (10%)
+            syncProgress = 0.05
+            await sourceManager.discoverSources()
+            syncProgress = 0.1
+
+            // Step 2: Detect conflicts (40%)
+            let conflicts = try await dataReader.detectConflicts(for: date, dataTypes: dataTypes)
+            result.totalConflicts = conflicts.count
+            syncProgress = 0.4
+
+            // Step 3: Process conflicts with merge engine (70%)
+            let operations = await mergeEngine.processConflicts(conflicts)
+            syncProgress = 0.7
+
+            let autoResolved = operations.filter { $0.status == .resolved }
+            let pendingManual = operations.filter { $0.status == .pendingManualReview }
+
+            result.autoResolved = autoResolved.count
+            result.pendingManualReview = pendingManual.count
+
+            // Update pending conflicts
+            pendingConflicts = pendingManual.map { $0.conflict }
+
+            // Step 4: Write resolved records (90%)
+            let recordsToWrite = autoResolved.compactMap { $0.mergedRecord }
+            if !recordsToWrite.isEmpty {
+                let writeResult = await dataWriter.writeBatch(recordsToWrite)
+                result.writtenRecords = writeResult.successCount
+                result.writeErrors = writeResult.failureCount
+            }
+            syncProgress = 0.9
+
+            // Step 5: Finalize (100%)
+            result.completedAt = Date()
+            result.status = .success
+            syncProgress = 1.0
+
+        } catch {
+            result.status = .failed
+            result.error = error.localizedDescription
+            result.completedAt = Date()
+            throw error
+        }
+
+        lastSyncDate = Date()
+        lastSyncResult = result
+        addToHistory(result)
+
+        // Send notification if there are pending conflicts
+        if result.pendingManualReview > 0 {
+            await sendConflictNotification(count: result.pendingManualReview)
+        }
+    }
+
+    // MARK: - Quick Sync
+
+    func performQuickSync() async throws {
+        try await performSync(
+            for: Date(),
+            dataTypes: [.steps, .heartRate, .activeEnergy]
+        )
+    }
+
+    // MARK: - Sync Specific Data Type
+
+    func syncDataType(_ dataType: HealthDataType, for date: Date = Date()) async throws {
+        try await performSync(for: date, dataTypes: [dataType])
+    }
+
+    // MARK: - Manual Conflict Resolution
+
+    func resolveConflict(_ conflict: Conflict, selectedReadingId: UUID) async throws {
+        guard let resolution = mergeEngine.resolveConflictManually(conflict, selectedReadingId: selectedReadingId) else {
+            throw SyncError.resolutionFailed
+        }
+
+        var resolvedConflict = conflict
+        resolvedConflict.status = .resolved
+        resolvedConflict.resolution = resolution
+        resolvedConflict.resolvedAt = Date()
+
+        let mergedRecord = mergeEngine.createMergedRecord(from: resolvedConflict, resolution: resolution)
+
+        // Write the record
+        _ = try await dataWriter.writeRecord(mergedRecord)
+
+        // Remove from pending
+        pendingConflicts.removeAll { $0.id == conflict.id }
+    }
+
+    func ignoreConflict(_ conflict: Conflict) {
+        pendingConflicts.removeAll { $0.id == conflict.id }
+    }
+
+    // MARK: - Sync History
+
+    private func loadSyncHistory() {
+        guard let data = UserDefaults.standard.data(forKey: syncHistoryKey),
+              let history = try? JSONDecoder().decode([SyncResult].self, from: data) else {
+            return
+        }
+        syncHistory = history
+    }
+
+    private func addToHistory(_ result: SyncResult) {
+        syncHistory.insert(result, at: 0)
+        if syncHistory.count > maxHistoryItems {
+            syncHistory = Array(syncHistory.prefix(maxHistoryItems))
+        }
+        saveSyncHistory()
+    }
+
+    private func saveSyncHistory() {
+        guard let data = try? JSONEncoder().encode(syncHistory) else { return }
+        UserDefaults.standard.set(data, forKey: syncHistoryKey)
+    }
+
+    func clearHistory() {
+        syncHistory.removeAll()
+        UserDefaults.standard.removeObject(forKey: syncHistoryKey)
+    }
+
+    // MARK: - Notifications
+
+    private func sendConflictNotification(count: Int) async {
+        let center = UNUserNotificationCenter.current()
+
+        let settings = await center.notificationSettings()
+        guard settings.authorizationStatus == .authorized else { return }
+
+        let content = UNMutableNotificationContent()
+        content.title = "HealthBridge"
+        content.body = count == 1
+            ? "1 Konflikt erfordert Ihre Aufmerksamkeit"
+            : "\(count) Konflikte erfordern Ihre Aufmerksamkeit"
+        content.sound = .default
+        content.badge = NSNumber(value: count)
+
+        let request = UNNotificationRequest(
+            identifier: "healthbridge.conflicts",
+            content: content,
+            trigger: nil
+        )
+
+        try? await center.add(request)
+    }
+
+    func requestNotificationPermission() async -> Bool {
+        let center = UNUserNotificationCenter.current()
+
+        do {
+            return try await center.requestAuthorization(options: [.alert, .sound, .badge])
+        } catch {
+            return false
+        }
+    }
+
+    // MARK: - Statistics
+
+    var todayStats: TodayStats {
+        let today = Calendar.current.startOfDay(for: Date())
+        let todaySyncs = syncHistory.filter {
+            Calendar.current.isDate($0.startedAt, inSameDayAs: today)
+        }
+
+        return TodayStats(
+            syncCount: todaySyncs.count,
+            totalConflicts: todaySyncs.reduce(0) { $0 + $1.totalConflicts },
+            autoResolved: todaySyncs.reduce(0) { $0 + $1.autoResolved },
+            pendingManual: pendingConflicts.count,
+            lastSync: lastSyncDate
+        )
+    }
+}
+
+// MARK: - Supporting Types
+
+struct SyncResult: Identifiable, Codable {
+    let id = UUID()
+    let startedAt: Date
+    var completedAt: Date?
+    var status: SyncStatus = .inProgress
+    var totalConflicts = 0
+    var autoResolved = 0
+    var pendingManualReview = 0
+    var writtenRecords = 0
+    var writeErrors = 0
+    var error: String?
+
+    enum SyncStatus: String, Codable {
+        case inProgress = "in_progress"
+        case success = "success"
+        case partialSuccess = "partial_success"
+        case failed = "failed"
+    }
+
+    var duration: TimeInterval? {
+        guard let completed = completedAt else { return nil }
+        return completed.timeIntervalSince(startedAt)
+    }
+
+    var formattedDuration: String {
+        guard let duration = duration else { return "–" }
+        if duration < 1 {
+            return "< 1s"
+        }
+        return String(format: "%.1fs", duration)
+    }
+
+    var successRate: Double {
+        guard totalConflicts > 0 else { return 1.0 }
+        return Double(autoResolved) / Double(totalConflicts)
+    }
+}
+
+struct TodayStats {
+    let syncCount: Int
+    let totalConflicts: Int
+    let autoResolved: Int
+    let pendingManual: Int
+    let lastSync: Date?
+
+    var resolutionRate: Double {
+        guard totalConflicts > 0 else { return 1.0 }
+        return Double(autoResolved) / Double(totalConflicts)
+    }
+
+    var formattedLastSync: String {
+        guard let date = lastSync else { return "Nie" }
+
+        let formatter = RelativeDateTimeFormatter()
+        formatter.unitsStyle = .abbreviated
+        return formatter.localizedString(for: date, relativeTo: Date())
+    }
+}
+
+enum SyncError: LocalizedError {
+    case notAuthorized
+    case syncInProgress
+    case resolutionFailed
+    case writeFailed
+
+    var errorDescription: String? {
+        switch self {
+        case .notAuthorized:
+            return "Keine Berechtigung für HealthKit"
+        case .syncInProgress:
+            return "Synchronisierung läuft bereits"
+        case .resolutionFailed:
+            return "Konfliktauflösung fehlgeschlagen"
+        case .writeFailed:
+            return "Schreiben der Daten fehlgeschlagen"
+        }
+    }
+}
@@ -0,0 +1,153 @@
+import Foundation
+import SwiftUI
+
+// MARK: - Date Extensions
+extension Date {
+    var startOfDay: Date {
+        Calendar.current.startOfDay(for: self)
+    }
+
+    var endOfDay: Date {
+        Calendar.current.date(byAdding: .day, value: 1, to: startOfDay)!.addingTimeInterval(-1)
+    }
+
+    var isToday: Bool {
+        Calendar.current.isDateInToday(self)
+    }
+
+    var isYesterday: Bool {
+        Calendar.current.isDateInYesterday(self)
+    }
+
+    func formatted(style: DateFormatter.Style) -> String {
+        let formatter = DateFormatter()
+        formatter.dateStyle = style
+        formatter.timeStyle = .none
+        return formatter.string(from: self)
+    }
+
+    func formattedTime() -> String {
+        let formatter = DateFormatter()
+        formatter.dateStyle = .none
+        formatter.timeStyle = .short
+        return formatter.string(from: self)
+    }
+
+    func formattedRelative() -> String {
+        let formatter = RelativeDateTimeFormatter()
+        formatter.unitsStyle = .abbreviated
+        return formatter.localizedString(for: self, relativeTo: Date())
+    }
+
+    func adding(days: Int) -> Date {
+        Calendar.current.date(byAdding: .day, value: days, to: self)!
+    }
+
+    func adding(hours: Int) -> Date {
+        Calendar.current.date(byAdding: .hour, value: hours, to: self)!
+    }
+
+    func adding(minutes: Int) -> Date {
+        Calendar.current.date(byAdding: .minute, value: minutes, to: self)!
+    }
+}
+
+// MARK: - Double Extensions
+extension Double {
+    func formatted(decimals: Int = 1) -> String {
+        String(format: "%.\(decimals)f", self)
+    }
+
+    var formattedAsInteger: String {
+        String(format: "%.0f", self)
+    }
+
+    var formattedAsPercentage: String {
+        String(format: "%.1f%%", self * 100)
+    }
+}
+
+// MARK: - Array Extensions
+extension Array {
+    func chunked(into size: Int) -> [[Element]] {
+        stride(from: 0, to: count, by: size).map {
+            Array(self[$0..<Swift.min($0 + size, count)])
+        }
+    }
+}
+
+// MARK: - Color Extensions
+extension Color {
+    static let healthBridgePrimary = Color.blue
+    static let healthBridgeSecondary = Color.cyan
+    static let healthBridgeAccent = Color.orange
+
+    static func forSeverity(_ severity: ConflictSeverity) -> Color {
+        switch severity {
+        case .minor: return .green
+        case .moderate: return .yellow
+        case .significant: return .orange
+        case .major: return .red
+        }
+    }
+
+    static func forQuality(_ quality: DataQuality) -> Color {
+        switch quality {
+        case .complete: return .green
+        case .partial: return .yellow
+        case .missing: return .gray
+        case .invalid: return .red
+        }
+    }
+}
+
+// MARK: - View Extensions
+extension View {
+    func cardStyle() -> some View {
+        self
+            .padding()
+            .background(Color(.systemBackground))
+            .clipShape(RoundedRectangle(cornerRadius: 12))
+            .shadow(color: .black.opacity(0.05), radius: 4, y: 2)
+    }
+
+    func sectionHeader(_ title: String) -> some View {
+        VStack(alignment: .leading, spacing: 8) {
+            Text(title)
+                .font(.headline)
+                .foregroundStyle(.primary)
+            self
+        }
+    }
+}
+
+// MARK: - Binding Extensions
+extension Binding {
+    func onChange(_ handler: @escaping (Value) -> Void) -> Binding<Value> {
+        Binding(
+            get: { self.wrappedValue },
+            set: { newValue in
+                self.wrappedValue = newValue
+                handler(newValue)
+            }
+        )
+    }
+}
+
+// MARK: - Optional Extensions
+extension Optional where Wrapped == String {
+    var orEmpty: String {
+        self ?? ""
+    }
+
+    var isNilOrEmpty: Bool {
+        self?.isEmpty ?? true
+    }
+}
+
+// MARK: - Collection Extensions
+extension Collection {
+    var isNotEmpty: Bool {
+        !isEmpty
+    }
+}
@@ -0,0 +1,185 @@
+import Foundation
+import UserNotifications
+
+@MainActor
+class NotificationManager: ObservableObject {
+    static let shared = NotificationManager()
+
+    @Published var isAuthorized = false
+    @Published var pendingNotifications: [String] = []
+
+    private let center = UNUserNotificationCenter.current()
+
+    private init() {
+        Task {
+            await checkAuthorization()
+        }
+    }
+
+    // MARK: - Authorization
+
+    func requestAuthorization() async -> Bool {
+        do {
+            let granted = try await center.requestAuthorization(options: [.alert, .sound, .badge])
+            isAuthorized = granted
+            return granted
+        } catch {
+            print("Notification authorization failed: \(error)")
+            return false
+        }
+    }
+
+    func checkAuthorization() async {
+        let settings = await center.notificationSettings()
+        isAuthorized = settings.authorizationStatus == .authorized
+    }
+
+    // MARK: - Conflict Notifications
+
+    func sendConflictNotification(count: Int) async {
+        guard isAuthorized else { return }
+
+        let content = UNMutableNotificationContent()
+        content.title = "HealthBridge"
+
+        if count == 1 {
+            content.body = "1 neuer Konflikt erfordert Ihre Aufmerksamkeit"
+        } else {
+            content.body = "\(count) neue Konflikte erfordern Ihre Aufmerksamkeit"
+        }
+
+        content.sound = .default
+        content.badge = NSNumber(value: count)
+        content.categoryIdentifier = "CONFLICT"
+
+        let request = UNNotificationRequest(
+            identifier: "healthbridge.conflict.\(Date().timeIntervalSince1970)",
+            content: content,
+            trigger: nil
+        )
+
+        do {
+            try await center.add(request)
+        } catch {
+            print("Failed to send notification: \(error)")
+        }
+    }
+
+    // MARK: - Sync Notifications
+
+    func sendSyncCompleteNotification(
+        conflictsResolved: Int,
+        pendingConflicts: Int
+    ) async {
+        guard isAuthorized else { return }
+
+        let content = UNMutableNotificationContent()
+        content.title = "Sync abgeschlossen"
+
+        if pendingConflicts > 0 {
+            content.body = "\(conflictsResolved) Konflikte gelöst, \(pendingConflicts) offen"
+        } else {
+            content.body = "Alle \(conflictsResolved) Konflikte wurden gelöst"
+        }
+
+        content.sound = .default
+        content.categoryIdentifier = "SYNC_COMPLETE"
+
+        let request = UNNotificationRequest(
+            identifier: "healthbridge.sync.\(Date().timeIntervalSince1970)",
+            content: content,
+            trigger: nil
+        )
+
+        do {
+            try await center.add(request)
+        } catch {
+            print("Failed to send notification: \(error)")
+        }
+    }
+
+    // MARK: - Scheduled Notifications
+
+    func scheduleReminder(at hour: Int, minute: Int) async {
+        guard isAuthorized else { return }
+
+        let content = UNMutableNotificationContent()
+        content.title = "HealthBridge Erinnerung"
+        content.body = "Vergessen Sie nicht, Ihre Gesundheitsdaten zu synchronisieren"
+        content.sound = .default
+
+        var dateComponents = DateComponents()
+        dateComponents.hour = hour
+        dateComponents.minute = minute
+
+        let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)
+
+        let request = UNNotificationRequest(
+            identifier: "healthbridge.reminder.daily",
+            content: content,
+            trigger: trigger
+        )
+
+        do {
+            try await center.add(request)
+        } catch {
+            print("Failed to schedule reminder: \(error)")
+        }
+    }
+
+    func cancelReminder() {
+        center.removePendingNotificationRequests(withIdentifiers: ["healthbridge.reminder.daily"])
+    }
+
+    // MARK: - Badge Management
+
+    func clearBadge() async {
+        do {
+            try await center.setBadgeCount(0)
+        } catch {
+            print("Failed to clear badge: \(error)")
+        }
+    }
+
+    func updateBadge(count: Int) async {
+        do {
+            try await center.setBadgeCount(count)
+        } catch {
+            print("Failed to update badge: \(error)")
+        }
+    }
+
+    // MARK: - Notification Categories
+
+    func registerCategories() {
+        // Conflict category with actions
+        let resolveAction = UNNotificationAction(
+            identifier: "RESOLVE_AUTO",
+            title: "Automatisch lösen",
+            options: []
+        )
+
+        let viewAction = UNNotificationAction(
+            identifier: "VIEW_CONFLICTS",
+            title: "Anzeigen",
+            options: [.foreground]
+        )
+
+        let conflictCategory = UNNotificationCategory(
+            identifier: "CONFLICT",
+            actions: [resolveAction, viewAction],
+            intentIdentifiers: [],
+            options: []
+        )
+
+        // Sync complete category
+        let syncCategory = UNNotificationCategory(
+            identifier: "SYNC_COMPLETE",
+            actions: [viewAction],
+            intentIdentifiers: [],
+            options: []
+        )
+
+        center.setNotificationCategories([conflictCategory, syncCategory])
+    }
+}
@@ -0,0 +1,103 @@
+import Foundation
+import Combine
+
+@MainActor
+class DashboardViewModel: ObservableObject {
+    private let syncCoordinator = SyncCoordinator.shared
+    private let dataReader = DataReader.shared
+    private let sourceManager = SourceManager.shared
+
+    @Published var dailySummary: DailySummary?
+    @Published var isLoading = false
+    @Published var selectedDate = Date()
+    @Published var errorMessage: String?
+
+    private var cancellables = Set<AnyCancellable>()
+
+    init() {
+        setupBindings()
+    }
+
+    private func setupBindings() {
+        $selectedDate
+            .debounce(for: .milliseconds(300), scheduler: DispatchQueue.main)
+            .sink { [weak self] date in
+                Task {
+                    await self?.loadData(for: date)
+                }
+            }
+            .store(in: &cancellables)
+    }
+
+    func loadData(for date: Date = Date()) async {
+        isLoading = true
+        errorMessage = nil
+
+        do {
+            dailySummary = try await dataReader.fetchDailySummary(for: date)
+        } catch {
+            errorMessage = error.localizedDescription
+        }
+
+        isLoading = false
+    }
+
+    func performSync() async {
+        do {
+            try await syncCoordinator.performSync(for: selectedDate)
+            await loadData(for: selectedDate)
+        } catch {
+            errorMessage = "Sync fehlgeschlagen: \(error.localizedDescription)"
+        }
+    }
+
+    func refresh() async {
+        await sourceManager.discoverSources()
+        await loadData(for: selectedDate)
+    }
+
+    var syncStatus: SyncStatus {
+        if syncCoordinator.isSyncing {
+            return .syncing
+        } else if let lastSync = syncCoordinator.lastSyncDate {
+            let hoursSinceSync = Date().timeIntervalSince(lastSync) / 3600
+            if hoursSinceSync < 1 {
+                return .synced
+            } else if hoursSinceSync < 24 {
+                return .stale
+            } else {
+                return .veryStale
+            }
+        } else {
+            return .neverSynced
+        }
+    }
+
+    enum SyncStatus {
+        case syncing
+        case synced
+        case stale
+        case veryStale
+        case neverSynced
+
+        var description: String {
+            switch self {
+            case .syncing: return "Synchronisiere..."
+            case .synced: return "Synchronisiert"
+            case .stale: return "Sync empfohlen"
+            case .veryStale: return "Sync überfällig"
+            case .neverSynced: return "Nie synchronisiert"
+            }
+        }
+
+        var icon: String {
+            switch self {
+            case .syncing: return "arrow.triangle.2.circlepath"
+            case .synced: return "checkmark.circle.fill"
+            case .stale: return "exclamationmark.circle"
+            case .veryStale: return "exclamationmark.triangle"
+            case .neverSynced: return "xmark.circle"
+            }
+        }
+    }
+}
@@ -0,0 +1,241 @@
+import SwiftUI
+import Charts
+
+struct HealthChart: View {
+    let dataType: HealthDataType
+    let data: [ChartDataPoint]
+    let showConflicts: Bool
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            HStack {
+                Image(systemName: dataType.icon)
+                    .foregroundStyle(.blue)
+                Text(dataType.displayName)
+                    .font(.headline)
+                Spacer()
+                if let latest = data.last {
+                    Text(latest.formattedValue)
+                        .font(.title3)
+                        .fontWeight(.semibold)
+                    Text(dataType.unit)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+            }
+
+            if #available(iOS 16.0, *) {
+                Chart(data) { point in
+                    LineMark(
+                        x: .value("Zeit", point.date),
+                        y: .value("Wert", point.value)
+                    )
+                    .foregroundStyle(.blue)
+
+                    PointMark(
+                        x: .value("Zeit", point.date),
+                        y: .value("Wert", point.value)
+                    )
+                    .foregroundStyle(point.hasConflict && showConflicts ? .orange : .blue)
+                    .symbolSize(point.hasConflict && showConflicts ? 100 : 50)
+                }
+                .frame(height: 150)
+                .chartXAxis {
+                    AxisMarks(values: .stride(by: .hour, count: 4)) { value in
+                        AxisValueLabel(format: .dateTime.hour())
+                    }
+                }
+                .chartYAxis {
+                    AxisMarks(position: .leading)
+                }
+            } else {
+                // Fallback for iOS 15
+                simpleChart
+            }
+        }
+        .padding()
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+
+    private var simpleChart: some View {
+        GeometryReader { geometry in
+            let maxValue = data.map { $0.value }.max() ?? 1
+            let minValue = data.map { $0.value }.min() ?? 0
+            let range = maxValue - minValue
+
+            Path { path in
+                guard !data.isEmpty else { return }
+
+                let xStep = geometry.size.width / CGFloat(max(1, data.count - 1))
+
+                for (index, point) in data.enumerated() {
+                    let x = CGFloat(index) * xStep
+                    let normalizedY = range > 0 ? (point.value - minValue) / range : 0.5
+                    let y = geometry.size.height * (1 - normalizedY)
+
+                    if index == 0 {
+                        path.move(to: CGPoint(x: x, y: y))
+                    } else {
+                        path.addLine(to: CGPoint(x: x, y: y))
+                    }
+                }
+            }
+            .stroke(Color.blue, lineWidth: 2)
+        }
+        .frame(height: 150)
+    }
+}
+
+struct ChartDataPoint: Identifiable {
+    let id = UUID()
+    let date: Date
+    let value: Double
+    let hasConflict: Bool
+    let sourceId: String?
+
+    var formattedValue: String {
+        if value == floor(value) {
+            return String(format: "%.0f", value)
+        }
+        return String(format: "%.1f", value)
+    }
+}
+
+// MARK: - Blood Pressure Chart
+struct BloodPressureChart: View {
+    let data: [BloodPressurePoint]
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            HStack {
+                Image(systemName: "drop.fill")
+                    .foregroundStyle(.red)
+                Text("Blutdruck")
+                    .font(.headline)
+                Spacer()
+                if let latest = data.last {
+                    Text("\(Int(latest.systolic))/\(Int(latest.diastolic))")
+                        .font(.title3)
+                        .fontWeight(.semibold)
+                    Text("mmHg")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+            }
+
+            if #available(iOS 16.0, *) {
+                Chart(data) { point in
+                    // Systolic
+                    LineMark(
+                        x: .value("Zeit", point.date),
+                        y: .value("Systolisch", point.systolic)
+                    )
+                    .foregroundStyle(.red)
+
+                    // Diastolic
+                    LineMark(
+                        x: .value("Zeit", point.date),
+                        y: .value("Diastolisch", point.diastolic)
+                    )
+                    .foregroundStyle(.blue)
+                }
+                .frame(height: 150)
+                .chartYScale(domain: 40...180)
+                .chartLegend(position: .bottom)
+            }
+        }
+        .padding()
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+}
+
+struct BloodPressurePoint: Identifiable {
+    let id = UUID()
+    let date: Date
+    let systolic: Double
+    let diastolic: Double
+    let classification: BloodPressureHandler.BloodPressureClassification
+}
+
+// MARK: - Summary Ring
+struct SummaryRing: View {
+    let progress: Double
+    let color: Color
+    let icon: String
+    let value: String
+    let label: String
+
+    var body: some View {
+        VStack(spacing: 4) {
+            ZStack {
+                Circle()
+                    .stroke(color.opacity(0.2), lineWidth: 8)
+
+                Circle()
+                    .trim(from: 0, to: min(progress, 1.0))
+                    .stroke(color, style: StrokeStyle(lineWidth: 8, lineCap: .round))
+                    .rotationEffect(.degrees(-90))
+
+                VStack(spacing: 2) {
+                    Image(systemName: icon)
+                        .font(.caption)
+                        .foregroundStyle(color)
+                    Text(value)
+                        .font(.caption2)
+                        .fontWeight(.semibold)
+                }
+            }
+            .frame(width: 60, height: 60)
+
+            Text(label)
+                .font(.caption2)
+                .foregroundStyle(.secondary)
+        }
+    }
+}
+
+#Preview {
+    VStack(spacing: 20) {
+        HealthChart(
+            dataType: .steps,
+            data: (0..<24).map { hour in
+                ChartDataPoint(
+                    date: Calendar.current.date(byAdding: .hour, value: hour, to: Calendar.current.startOfDay(for: Date()))!,
+                    value: Double.random(in: 0...1000),
+                    hasConflict: hour % 5 == 0,
+                    sourceId: nil
+                )
+            },
+            showConflicts: true
+        )
+
+        HStack(spacing: 20) {
+            SummaryRing(
+                progress: 0.75,
+                color: .blue,
+                icon: "figure.walk",
+                value: "7.5k",
+                label: "Schritte"
+            )
+
+            SummaryRing(
+                progress: 0.5,
+                color: .red,
+                icon: "heart.fill",
+                value: "72",
+                label: "Puls"
+            )
+
+            SummaryRing(
+                progress: 1.0,
+                color: .green,
+                icon: "checkmark.circle",
+                value: "100%",
+                label: "Synced"
+            )
+        }
+    }
+    .padding()
+}
@@ -0,0 +1,348 @@
+import SwiftUI
+
+struct ConflictsView: View {
+    @EnvironmentObject var syncCoordinator: SyncCoordinator
+    @State private var selectedConflict: Conflict?
+    @State private var showingDetail = false
+
+    var body: some View {
+        NavigationStack {
+            Group {
+                if syncCoordinator.pendingConflicts.isEmpty {
+                    emptyState
+                } else {
+                    conflictsList
+                }
+            }
+            .navigationTitle("Konflikte")
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Menu {
+                        Button("Alle automatisch lösen") {
+                            Task { await resolveAllAuto() }
+                        }
+                        Button("Alle ignorieren", role: .destructive) {
+                            ignoreAll()
+                        }
+                    } label: {
+                        Image(systemName: "ellipsis.circle")
+                    }
+                    .disabled(syncCoordinator.pendingConflicts.isEmpty)
+                }
+            }
+            .sheet(item: $selectedConflict) { conflict in
+                ConflictDetailView(conflict: conflict) { selectedReadingId in
+                    Task {
+                        await resolveConflict(conflict, selectedReadingId: selectedReadingId)
+                    }
+                }
+            }
+        }
+    }
+
+    // MARK: - Empty State
+
+    private var emptyState: some View {
+        VStack(spacing: 16) {
+            Image(systemName: "checkmark.circle.fill")
+                .font(.system(size: 64))
+                .foregroundStyle(.green)
+
+            Text("Keine Konflikte")
+                .font(.title2)
+                .fontWeight(.semibold)
+
+            Text("Alle Ihre Gesundheitsdaten sind synchronisiert")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+                .multilineTextAlignment(.center)
+        }
+        .padding()
+    }
+
+    // MARK: - Conflicts List
+
+    private var conflictsList: some View {
+        List {
+            ForEach(groupedConflicts.keys.sorted(by: { $0.displayName < $1.displayName }), id: \.self) { dataType in
+                Section(dataType.displayName) {
+                    ForEach(groupedConflicts[dataType] ?? []) { conflict in
+                        ConflictRow(conflict: conflict)
+                            .contentShape(Rectangle())
+                            .onTapGesture {
+                                selectedConflict = conflict
+                            }
+                    }
+                }
+            }
+        }
+        .listStyle(.insetGrouped)
+    }
+
+    private var groupedConflicts: [HealthDataType: [Conflict]] {
+        Dictionary(grouping: syncCoordinator.pendingConflicts, by: { $0.dataType })
+    }
+
+    // MARK: - Actions
+
+    private func resolveConflict(_ conflict: Conflict, selectedReadingId: UUID) async {
+        do {
+            try await syncCoordinator.resolveConflict(conflict, selectedReadingId: selectedReadingId)
+            selectedConflict = nil
+        } catch {
+            print("Failed to resolve conflict: \(error)")
+        }
+    }
+
+    private func resolveAllAuto() async {
+        for conflict in syncCoordinator.pendingConflicts {
+            if let primaryReading = conflict.primarySourceReading {
+                try? await syncCoordinator.resolveConflict(conflict, selectedReadingId: primaryReading.id)
+            }
+        }
+    }
+
+    private func ignoreAll() {
+        for conflict in syncCoordinator.pendingConflicts {
+            syncCoordinator.ignoreConflict(conflict)
+        }
+    }
+}
+
+// MARK: - Conflict Row
+
+struct ConflictRow: View {
+    let conflict: Conflict
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            HStack {
+                Image(systemName: conflict.dataType.icon)
+                    .foregroundStyle(.blue)
+
+                Text(conflict.timeWindow.formattedRange)
+                    .font(.headline)
+
+                Spacer()
+
+                severityBadge
+            }
+
+            HStack(spacing: 16) {
+                ForEach(conflict.readings.prefix(3)) { reading in
+                    VStack(alignment: .leading, spacing: 2) {
+                        Text(reading.sourceName)
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
+                        Text(reading.formattedValue)
+                            .font(.subheadline)
+                            .fontWeight(.medium)
+                    }
+                }
+            }
+
+            if conflict.readings.count > 3 {
+                Text("+\(conflict.readings.count - 3) weitere")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .padding(.vertical, 4)
+    }
+
+    private var severityBadge: some View {
+        Text(conflict.severity.displayName)
+            .font(.caption2)
+            .padding(.horizontal, 8)
+            .padding(.vertical, 4)
+            .background(severityColor.opacity(0.2))
+            .foregroundStyle(severityColor)
+            .clipShape(Capsule())
+    }
+
+    private var severityColor: Color {
+        switch conflict.severity {
+        case .minor: return .green
+        case .moderate: return .yellow
+        case .significant: return .orange
+        case .major: return .red
+        }
+    }
+}
+
+// MARK: - Conflict Detail View
+
+struct ConflictDetailView: View {
+    let conflict: Conflict
+    let onResolve: (UUID) -> Void
+
+    @Environment(\.dismiss) private var dismiss
+    @State private var selectedReadingId: UUID?
+
+    var body: some View {
+        NavigationStack {
+            ScrollView {
+                VStack(spacing: 20) {
+                    // Header
+                    headerSection
+
+                    // Readings
+                    readingsSection
+
+                    // Difference Info
+                    differenceSection
+
+                    Spacer()
+                }
+                .padding()
+            }
+            .navigationTitle("Konflikt lösen")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .cancellationAction) {
+                    Button("Abbrechen") {
+                        dismiss()
+                    }
+                }
+
+                ToolbarItem(placement: .confirmationAction) {
+                    Button("Auswählen") {
+                        if let id = selectedReadingId {
+                            onResolve(id)
+                        }
+                    }
+                    .disabled(selectedReadingId == nil)
+                }
+            }
+        }
+    }
+
+    // MARK: - Header
+
+    private var headerSection: some View {
+        VStack(spacing: 8) {
+            Image(systemName: conflict.dataType.icon)
+                .font(.largeTitle)
+                .foregroundStyle(.blue)
+
+            Text(conflict.dataType.displayName)
+                .font(.title2)
+                .fontWeight(.semibold)
+
+            Text(conflict.timeWindow.formattedDate)
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+
+            Text(conflict.timeWindow.formattedRange)
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+        }
+        .padding()
+    }
+
+    // MARK: - Readings
+
+    private var readingsSection: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Quellen")
+                .font(.headline)
+
+            ForEach(conflict.readings) { reading in
+                ReadingCard(
+                    reading: reading,
+                    isSelected: selectedReadingId == reading.id,
+                    dataType: conflict.dataType
+                )
+                .onTapGesture {
+                    selectedReadingId = reading.id
+                }
+            }
+        }
+    }
+
+    // MARK: - Difference
+
+    private var differenceSection: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            Text("Analyse")
+                .font(.headline)
+
+            HStack {
+                VStack(alignment: .leading) {
+                    Text("Differenz")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Text(String(format: "%.1f %@", conflict.valueDifference, conflict.dataType.unit))
+                        .font(.title3)
+                        .fontWeight(.medium)
+                }
+
+                Spacer()
+
+                VStack(alignment: .trailing) {
+                    Text("Prozentual")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Text(String(format: "%.1f%%", conflict.percentageDifference))
+                        .font(.title3)
+                        .fontWeight(.medium)
+                }
+            }
+            .padding()
+            .background(Color(.secondarySystemBackground))
+            .clipShape(RoundedRectangle(cornerRadius: 12))
+        }
+    }
+}
+
+// MARK: - Reading Card
+
+struct ReadingCard: View {
+    let reading: SourceReading
+    let isSelected: Bool
+    let dataType: HealthDataType
+
+    var body: some View {
+        HStack {
+            VStack(alignment: .leading, spacing: 4) {
+                HStack {
+                    Image(systemName: reading.sourceCategory.icon)
+                        .foregroundStyle(.blue)
+                    Text(reading.sourceName)
+                        .font(.headline)
+                }
+
+                Text(reading.sourceCategory.displayName)
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+
+            Spacer()
+
+            VStack(alignment: .trailing, spacing: 4) {
+                Text(reading.formattedValue)
+                    .font(.title2)
+                    .fontWeight(.semibold)
+                Text(dataType.unit)
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+
+            Image(systemName: isSelected ? "checkmark.circle.fill" : "circle")
+                .font(.title2)
+                .foregroundStyle(isSelected ? .blue : .secondary)
+        }
+        .padding()
+        .background(isSelected ? Color.blue.opacity(0.1) : Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+        .overlay(
+            RoundedRectangle(cornerRadius: 12)
+                .stroke(isSelected ? Color.blue : Color.clear, lineWidth: 2)
+        )
+    }
+}
+
+#Preview {
+    ConflictsView()
+        .environmentObject(SyncCoordinator.shared)
+}
@@ -0,0 +1,42 @@
+import SwiftUI
+
+struct ContentView: View {
+    @EnvironmentObject var appState: AppState
+    @EnvironmentObject var syncCoordinator: SyncCoordinator
+
+    var body: some View {
+        TabView(selection: $appState.selectedTab) {
+            DashboardView()
+                .tabItem {
+                    Label("Dashboard", systemImage: "chart.bar.fill")
+                }
+                .tag(AppState.Tab.dashboard)
+
+            ConflictsView()
+                .tabItem {
+                    Label("Konflikte", systemImage: "arrow.triangle.2.circlepath")
+                }
+                .tag(AppState.Tab.conflicts)
+                .badge(syncCoordinator.pendingConflicts.count)
+
+            RulesView()
+                .tabItem {
+                    Label("Regeln", systemImage: "slider.horizontal.3")
+                }
+                .tag(AppState.Tab.rules)
+
+            SourcesView()
+                .tabItem {
+                    Label("Quellen", systemImage: "antenna.radiowaves.left.and.right")
+                }
+                .tag(AppState.Tab.sources)
+        }
+        .tint(.blue)
+    }
+}
+
+#Preview {
+    ContentView()
+        .environmentObject(AppState())
+        .environmentObject(SyncCoordinator.shared)
+}
@@ -0,0 +1,379 @@
+import SwiftUI
+
+struct DashboardView: View {
+    @EnvironmentObject var appState: AppState
+    @EnvironmentObject var syncCoordinator: SyncCoordinator
+    @StateObject private var dataReader = DataReader.shared
+
+    @State private var dailySummary: DailySummary?
+    @State private var isLoading = false
+    @State private var selectedDate = Date()
+
+    var body: some View {
+        NavigationStack {
+            ScrollView {
+                VStack(spacing: 20) {
+                    // Sync Status Card
+                    syncStatusCard
+
+                    // Date Picker
+                    datePicker
+
+                    // Health Metrics
+                    if let summary = dailySummary {
+                        healthMetricsGrid(summary: summary)
+                    } else if isLoading {
+                        loadingView
+                    } else {
+                        emptyStateView
+                    }
+
+                    // Pending Conflicts Alert
+                    if !syncCoordinator.pendingConflicts.isEmpty {
+                        pendingConflictsCard
+                    }
+
+                    // Recent Sync History
+                    recentSyncHistory
+                }
+                .padding()
+            }
+            .navigationTitle("HealthBridge")
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button {
+                        Task { await performSync() }
+                    } label: {
+                        if syncCoordinator.isSyncing {
+                            ProgressView()
+                                .scaleEffect(0.8)
+                        } else {
+                            Image(systemName: "arrow.clockwise")
+                        }
+                    }
+                    .disabled(syncCoordinator.isSyncing)
+                }
+            }
+            .refreshable {
+                await loadData()
+            }
+            .task {
+                await loadData()
+            }
+            .onChange(of: selectedDate) {
+                Task { await loadData() }
+            }
+        }
+    }
+
+    // MARK: - Sync Status Card
+
+    private var syncStatusCard: some View {
+        VStack(spacing: 12) {
+            HStack {
+                VStack(alignment: .leading, spacing: 4) {
+                    Text("Heute")
+                        .font(.headline)
+                    Text(syncCoordinator.todayStats.formattedLastSync)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+
+                Spacer()
+
+                if syncCoordinator.isSyncing {
+                    VStack(alignment: .trailing) {
+                        ProgressView(value: syncCoordinator.syncProgress)
+                            .frame(width: 60)
+                        Text("Synchronisiere...")
+                            .font(.caption2)
+                            .foregroundStyle(.secondary)
+                    }
+                } else {
+                    Image(systemName: "checkmark.circle.fill")
+                        .font(.title2)
+                        .foregroundStyle(.green)
+                }
+            }
+
+            Divider()
+
+            HStack(spacing: 20) {
+                StatItem(
+                    value: "\(syncCoordinator.todayStats.syncCount)",
+                    label: "Syncs",
+                    icon: "arrow.triangle.2.circlepath"
+                )
+
+                StatItem(
+                    value: "\(syncCoordinator.todayStats.totalConflicts)",
+                    label: "Konflikte",
+                    icon: "exclamationmark.triangle"
+                )
+
+                StatItem(
+                    value: "\(Int(syncCoordinator.todayStats.resolutionRate * 100))%",
+                    label: "Gelöst",
+                    icon: "checkmark.circle"
+                )
+            }
+        }
+        .padding()
+        .background(Color(.systemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 16))
+        .shadow(color: .black.opacity(0.05), radius: 8, y: 4)
+    }
+
+    // MARK: - Date Picker
+
+    private var datePicker: some View {
+        DatePicker(
+            "Datum",
+            selection: $selectedDate,
+            in: ...Date(),
+            displayedComponents: .date
+        )
+        .datePickerStyle(.compact)
+        .padding(.horizontal)
+    }
+
+    // MARK: - Health Metrics Grid
+
+    private func healthMetricsGrid(summary: DailySummary) -> some View {
+        LazyVGrid(columns: [
+            GridItem(.flexible()),
+            GridItem(.flexible())
+        ], spacing: 16) {
+            ForEach(HealthDataType.allCases) { dataType in
+                if let value = summary.values[dataType], value > 0 {
+                    HealthMetricCard(
+                        dataType: dataType,
+                        value: summary.formattedValue(for: dataType),
+                        conflictCount: summary.conflictCounts[dataType] ?? 0
+                    )
+                }
+            }
+        }
+    }
+
+    // MARK: - Pending Conflicts Card
+
+    private var pendingConflictsCard: some View {
+        Button {
+            appState.selectedTab = .conflicts
+        } label: {
+            HStack {
+                Image(systemName: "exclamationmark.triangle.fill")
+                    .foregroundStyle(.orange)
+
+                VStack(alignment: .leading) {
+                    Text("\(syncCoordinator.pendingConflicts.count) Konflikte zu prüfen")
+                        .font(.headline)
+                    Text("Tippen zum Anzeigen")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+
+                Spacer()
+
+                Image(systemName: "chevron.right")
+                    .foregroundStyle(.secondary)
+            }
+            .padding()
+            .background(Color.orange.opacity(0.1))
+            .clipShape(RoundedRectangle(cornerRadius: 12))
+        }
+        .buttonStyle(.plain)
+    }
+
+    // MARK: - Recent Sync History
+
+    private var recentSyncHistory: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Letzte Synchronisierungen")
+                .font(.headline)
+
+            ForEach(syncCoordinator.syncHistory.prefix(5)) { result in
+                SyncHistoryRow(result: result)
+            }
+
+            if syncCoordinator.syncHistory.isEmpty {
+                Text("Keine Synchronisierungen")
+                    .font(.subheadline)
+                    .foregroundStyle(.secondary)
+                    .frame(maxWidth: .infinity)
+                    .padding()
+            }
+        }
+        .padding()
+        .background(Color(.systemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 16))
+        .shadow(color: .black.opacity(0.05), radius: 8, y: 4)
+    }
+
+    // MARK: - Loading & Empty States
+
+    private var loadingView: some View {
+        VStack(spacing: 12) {
+            ProgressView()
+            Text("Lade Daten...")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+        }
+        .frame(maxWidth: .infinity)
+        .padding(.vertical, 40)
+    }
+
+    private var emptyStateView: some View {
+        VStack(spacing: 12) {
+            Image(systemName: "heart.text.square")
+                .font(.system(size: 48))
+                .foregroundStyle(.secondary)
+            Text("Keine Daten verfügbar")
+                .font(.headline)
+            Text("Synchronisieren Sie, um Daten zu laden")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+        }
+        .frame(maxWidth: .infinity)
+        .padding(.vertical, 40)
+    }
+
+    // MARK: - Actions
+
+    private func loadData() async {
+        isLoading = true
+        defer { isLoading = false }
+
+        do {
+            dailySummary = try await dataReader.fetchDailySummary(for: selectedDate)
+        } catch {
+            print("Failed to load data: \(error)")
+        }
+    }
+
+    private func performSync() async {
+        do {
+            try await syncCoordinator.performSync(for: selectedDate)
+            await loadData()
+        } catch {
+            print("Sync failed: \(error)")
+        }
+    }
+}
+
+// MARK: - Supporting Views
+
+struct StatItem: View {
+    let value: String
+    let label: String
+    let icon: String
+
+    var body: some View {
+        VStack(spacing: 4) {
+            Image(systemName: icon)
+                .font(.caption)
+                .foregroundStyle(.secondary)
+            Text(value)
+                .font(.title3)
+                .fontWeight(.semibold)
+            Text(label)
+                .font(.caption2)
+                .foregroundStyle(.secondary)
+        }
+        .frame(maxWidth: .infinity)
+    }
+}
+
+struct HealthMetricCard: View {
+    let dataType: HealthDataType
+    let value: String
+    let conflictCount: Int
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            HStack {
+                Image(systemName: dataType.icon)
+                    .foregroundStyle(.blue)
+                Spacer()
+                if conflictCount > 0 {
+                    Text("\(conflictCount)")
+                        .font(.caption2)
+                        .padding(.horizontal, 6)
+                        .padding(.vertical, 2)
+                        .background(Color.orange.opacity(0.2))
+                        .clipShape(Capsule())
+                }
+            }
+
+            Text(value)
+                .font(.title2)
+                .fontWeight(.semibold)
+
+            Text(dataType.displayName)
+                .font(.caption)
+                .foregroundStyle(.secondary)
+        }
+        .padding()
+        .background(Color(.systemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+        .shadow(color: .black.opacity(0.05), radius: 4, y: 2)
+    }
+}
+
+struct SyncHistoryRow: View {
+    let result: SyncResult
+
+    var body: some View {
+        HStack {
+            Image(systemName: statusIcon)
+                .foregroundStyle(statusColor)
+
+            VStack(alignment: .leading, spacing: 2) {
+                Text(formattedDate)
+                    .font(.subheadline)
+                Text("\(result.autoResolved)/\(result.totalConflicts) gelöst")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+
+            Spacer()
+
+            Text(result.formattedDuration)
+                .font(.caption)
+                .foregroundStyle(.secondary)
+        }
+        .padding(.vertical, 4)
+    }
+
+    private var statusIcon: String {
+        switch result.status {
+        case .success: return "checkmark.circle.fill"
+        case .partialSuccess: return "exclamationmark.circle.fill"
+        case .failed: return "xmark.circle.fill"
+        case .inProgress: return "arrow.clockwise"
+        }
+    }
+
+    private var statusColor: Color {
+        switch result.status {
+        case .success: return .green
+        case .partialSuccess: return .orange
+        case .failed: return .red
+        case .inProgress: return .blue
+        }
+    }
+
+    private var formattedDate: String {
+        let formatter = DateFormatter()
+        formatter.dateStyle = .short
+        formatter.timeStyle = .short
+        return formatter.string(from: result.startedAt)
+    }
+}
+
+#Preview {
+    DashboardView()
+        .environmentObject(AppState())
+        .environmentObject(SyncCoordinator.shared)
+}
@@ -0,0 +1,252 @@
+import SwiftUI
+
+struct RulesView: View {
+    @StateObject private var ruleEngine = RuleEngine.shared
+    @StateObject private var sourceManager = SourceManager.shared
+    @State private var selectedDataType: HealthDataType?
+    @State private var showingResetConfirmation = false
+
+    var body: some View {
+        NavigationStack {
+            List {
+                Section {
+                    Text("Regeln bestimmen, wie Konflikte zwischen verschiedenen Datenquellen automatisch gelöst werden.")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+
+                ForEach(HealthDataType.allCases) { dataType in
+                    RuleRow(
+                        dataType: dataType,
+                        rule: ruleEngine.getRule(for: dataType)
+                    )
+                    .contentShape(Rectangle())
+                    .onTapGesture {
+                        selectedDataType = dataType
+                    }
+                }
+            }
+            .listStyle(.insetGrouped)
+            .navigationTitle("Regeln")
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Menu {
+                        Button("Alle zurücksetzen", role: .destructive) {
+                            showingResetConfirmation = true
+                        }
+                    } label: {
+                        Image(systemName: "ellipsis.circle")
+                    }
+                }
+            }
+            .sheet(item: $selectedDataType) { dataType in
+                RuleEditorView(dataType: dataType)
+            }
+            .confirmationDialog(
+                "Alle Regeln zurücksetzen?",
+                isPresented: $showingResetConfirmation,
+                titleVisibility: .visible
+            ) {
+                Button("Zurücksetzen", role: .destructive) {
+                    ruleEngine.resetAllToDefaults()
+                }
+                Button("Abbrechen", role: .cancel) {}
+            } message: {
+                Text("Alle Regeln werden auf die Standardwerte zurückgesetzt.")
+            }
+        }
+    }
+}
+
+// MARK: - Rule Row
+
+struct RuleRow: View {
+    let dataType: HealthDataType
+    let rule: MergeRule
+
+    var body: some View {
+        HStack {
+            Image(systemName: dataType.icon)
+                .foregroundStyle(.blue)
+                .frame(width: 30)
+
+            VStack(alignment: .leading, spacing: 4) {
+                Text(dataType.displayName)
+                    .font(.headline)
+
+                HStack(spacing: 8) {
+                    Image(systemName: rule.strategy.icon)
+                        .font(.caption)
+                    Text(rule.strategy.displayName)
+                        .font(.caption)
+                }
+                .foregroundStyle(.secondary)
+            }
+
+            Spacer()
+
+            if !rule.autoApply {
+                Image(systemName: "hand.raised.fill")
+                    .foregroundStyle(.orange)
+                    .font(.caption)
+            }
+
+            Image(systemName: "chevron.right")
+                .font(.caption)
+                .foregroundStyle(.secondary)
+        }
+        .padding(.vertical, 4)
+    }
+}
+
+// MARK: - Rule Editor View
+
+struct RuleEditorView: View {
+    let dataType: HealthDataType
+    @Environment(\.dismiss) private var dismiss
+    @StateObject private var ruleEngine = RuleEngine.shared
+    @StateObject private var sourceManager = SourceManager.shared
+
+    @State private var selectedStrategy: MergeStrategy
+    @State private var autoApply: Bool
+    @State private var primarySourceId: String?
+    @State private var thresholdForManualReview: Double?
+    @State private var useThreshold: Bool
+
+    init(dataType: HealthDataType) {
+        self.dataType = dataType
+        let rule = RuleEngine.shared.getRule(for: dataType)
+        _selectedStrategy = State(initialValue: rule.strategy)
+        _autoApply = State(initialValue: rule.autoApply)
+        _primarySourceId = State(initialValue: rule.primarySourceId)
+        _thresholdForManualReview = State(initialValue: rule.thresholdForManualReview)
+        _useThreshold = State(initialValue: rule.thresholdForManualReview != nil)
+    }
+
+    var body: some View {
+        NavigationStack {
+            Form {
+                // Data Type Info
+                Section {
+                    HStack {
+                        Image(systemName: dataType.icon)
+                            .font(.title2)
+                            .foregroundStyle(.blue)
+                        VStack(alignment: .leading) {
+                            Text(dataType.displayName)
+                                .font(.headline)
+                            Text(dataType.unit)
+                                .font(.caption)
+                                .foregroundStyle(.secondary)
+                        }
+                    }
+                }
+
+                // Strategy Selection
+                Section("Strategie") {
+                    Picker("Merge-Strategie", selection: $selectedStrategy) {
+                        ForEach(MergeStrategy.allCases) { strategy in
+                            Label(strategy.displayName, systemImage: strategy.icon)
+                                .tag(strategy)
+                        }
+                    }
+                    .pickerStyle(.navigationLink)
+
+                    Text(selectedStrategy.description)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+
+                // Primary Source (for exclusive/priority)
+                if selectedStrategy == .exclusive || selectedStrategy == .priority {
+                    Section("Primäre Quelle") {
+                        let sources = sourceManager.sources.filter {
+                            $0.supportedDataTypes.contains(dataType)
+                        }
+
+                        if sources.isEmpty {
+                            Text("Keine Quellen für diesen Datentyp")
+                                .foregroundStyle(.secondary)
+                        } else {
+                            Picker("Quelle", selection: $primarySourceId) {
+                                Text("Automatisch").tag(nil as String?)
+                                ForEach(sources) { source in
+                                    Text(source.displayName).tag(source.bundleIdentifier as String?)
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // Auto Apply
+                Section("Automatisierung") {
+                    Toggle("Automatisch anwenden", isOn: $autoApply)
+
+                    if autoApply {
+                        Toggle("Schwellenwert für manuelle Prüfung", isOn: $useThreshold)
+
+                        if useThreshold {
+                            VStack(alignment: .leading) {
+                                Text("Bei Differenz über \(Int(thresholdForManualReview ?? 20))% nachfragen")
+                                    .font(.caption)
+                                    .foregroundStyle(.secondary)
+
+                                Slider(
+                                    value: Binding(
+                                        get: { thresholdForManualReview ?? 20 },
+                                        set: { thresholdForManualReview = $0 }
+                                    ),
+                                    in: 5...50,
+                                    step: 5
+                                )
+                            }
+                        }
+                    }
+                }
+
+                // Reset
+                Section {
+                    Button("Auf Standard zurücksetzen", role: .destructive) {
+                        let defaultRule = MergeRule.defaultRule(for: dataType)
+                        selectedStrategy = defaultRule.strategy
+                        autoApply = defaultRule.autoApply
+                        primarySourceId = defaultRule.primarySourceId
+                        thresholdForManualReview = defaultRule.thresholdForManualReview
+                        useThreshold = defaultRule.thresholdForManualReview != nil
+                    }
+                }
+            }
+            .navigationTitle("Regel bearbeiten")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .cancellationAction) {
+                    Button("Abbrechen") {
+                        dismiss()
+                    }
+                }
+
+                ToolbarItem(placement: .confirmationAction) {
+                    Button("Speichern") {
+                        saveRule()
+                        dismiss()
+                    }
+                }
+            }
+        }
+    }
+
+    private func saveRule() {
+        let rule = MergeRule(
+            dataType: dataType,
+            strategy: selectedStrategy,
+            primarySourceId: primarySourceId,
+            autoApply: autoApply,
+            thresholdForManualReview: useThreshold ? thresholdForManualReview : nil
+        )
+        ruleEngine.setRule(rule, for: dataType)
+    }
+}
+
+#Preview {
+    RulesView()
+}
@@ -0,0 +1,218 @@
+import SwiftUI
+
+struct SettingsView: View {
+    @AppStorage("backgroundSyncEnabled") private var backgroundSyncEnabled = true
+    @AppStorage("syncIntervalMinutes") private var syncIntervalMinutes = 15
+    @AppStorage("notificationsEnabled") private var notificationsEnabled = true
+    @AppStorage("notifyOnConflict") private var notifyOnConflict = true
+    @AppStorage("notifyOnSyncComplete") private var notifyOnSyncComplete = false
+    @AppStorage("autoResolveMinorConflicts") private var autoResolveMinorConflicts = true
+
+    @StateObject private var syncCoordinator = SyncCoordinator.shared
+    @StateObject private var healthKitManager = HealthKitManager.shared
+
+    @State private var showingClearDataConfirmation = false
+    @State private var showingExportSheet = false
+
+    var body: some View {
+        NavigationStack {
+            Form {
+                // Sync Settings
+                Section("Synchronisierung") {
+                    Toggle("Hintergrund-Sync", isOn: $backgroundSyncEnabled)
+
+                    if backgroundSyncEnabled {
+                        Picker("Intervall", selection: $syncIntervalMinutes) {
+                            Text("15 Minuten").tag(15)
+                            Text("30 Minuten").tag(30)
+                            Text("1 Stunde").tag(60)
+                            Text("2 Stunden").tag(120)
+                        }
+                    }
+
+                    Toggle("Kleine Konflikte automatisch lösen", isOn: $autoResolveMinorConflicts)
+                }
+
+                // Notification Settings
+                Section("Benachrichtigungen") {
+                    Toggle("Benachrichtigungen aktivieren", isOn: $notificationsEnabled)
+
+                    if notificationsEnabled {
+                        Toggle("Bei neuen Konflikten", isOn: $notifyOnConflict)
+                        Toggle("Nach Synchronisierung", isOn: $notifyOnSyncComplete)
+                    }
+                }
+
+                // Health Status
+                Section("HealthKit Status") {
+                    HStack {
+                        Text("Autorisierung")
+                        Spacer()
+                        if healthKitManager.isAuthorized {
+                            Label("Erteilt", systemImage: "checkmark.circle.fill")
+                                .foregroundStyle(.green)
+                        } else {
+                            Label("Ausstehend", systemImage: "exclamationmark.circle")
+                                .foregroundStyle(.orange)
+                        }
+                    }
+
+                    if !healthKitManager.isAuthorized {
+                        Button("HealthKit-Zugriff anfordern") {
+                            Task {
+                                try? await healthKitManager.requestAuthorization()
+                            }
+                        }
+                    }
+                }
+
+                // Statistics
+                Section("Statistiken") {
+                    StatRow(label: "Syncs heute", value: "\(syncCoordinator.todayStats.syncCount)")
+                    StatRow(label: "Konflikte heute", value: "\(syncCoordinator.todayStats.totalConflicts)")
+                    StatRow(label: "Automatisch gelöst", value: "\(syncCoordinator.todayStats.autoResolved)")
+                    StatRow(label: "Auflösungsrate", value: "\(Int(syncCoordinator.todayStats.resolutionRate * 100))%")
+                }
+
+                // Data Management
+                Section("Daten") {
+                    Button("Sync-Verlauf exportieren") {
+                        showingExportSheet = true
+                    }
+
+                    Button("Sync-Verlauf löschen", role: .destructive) {
+                        showingClearDataConfirmation = true
+                    }
+                }
+
+                // About
+                Section("Info") {
+                    HStack {
+                        Text("Version")
+                        Spacer()
+                        Text("1.0.0")
+                            .foregroundStyle(.secondary)
+                    }
+
+                    Link(destination: URL(string: "https://apple.com/health")!) {
+                        HStack {
+                            Text("Apple Health")
+                            Spacer()
+                            Image(systemName: "arrow.up.right.square")
+                                .foregroundStyle(.secondary)
+                        }
+                    }
+                }
+            }
+            .navigationTitle("Einstellungen")
+            .confirmationDialog(
+                "Sync-Verlauf löschen?",
+                isPresented: $showingClearDataConfirmation,
+                titleVisibility: .visible
+            ) {
+                Button("Löschen", role: .destructive) {
+                    syncCoordinator.clearHistory()
+                }
+                Button("Abbrechen", role: .cancel) {}
+            } message: {
+                Text("Der gesamte Sync-Verlauf wird gelöscht. Dies kann nicht rückgängig gemacht werden.")
+            }
+            .sheet(isPresented: $showingExportSheet) {
+                ExportView()
+            }
+        }
+    }
+}
+
+// MARK: - Stat Row
+
+struct StatRow: View {
+    let label: String
+    let value: String
+
+    var body: some View {
+        HStack {
+            Text(label)
+            Spacer()
+            Text(value)
+                .foregroundStyle(.secondary)
+        }
+    }
+}
+
+// MARK: - Export View
+
+struct ExportView: View {
+    @Environment(\.dismiss) private var dismiss
+    @StateObject private var syncCoordinator = SyncCoordinator.shared
+
+    @State private var exportFormat: ExportFormat = .json
+    @State private var isExporting = false
+
+    enum ExportFormat: String, CaseIterable {
+        case json = "JSON"
+        case csv = "CSV"
+    }
+
+    var body: some View {
+        NavigationStack {
+            VStack(spacing: 20) {
+                Image(systemName: "square.and.arrow.up")
+                    .font(.system(size: 48))
+                    .foregroundStyle(.blue)
+
+                Text("Daten exportieren")
+                    .font(.title2)
+                    .fontWeight(.semibold)
+
+                Picker("Format", selection: $exportFormat) {
+                    ForEach(ExportFormat.allCases, id: \.self) { format in
+                        Text(format.rawValue).tag(format)
+                    }
+                }
+                .pickerStyle(.segmented)
+                .padding(.horizontal)
+
+                Text("\(syncCoordinator.syncHistory.count) Sync-Einträge")
+                    .font(.subheadline)
+                    .foregroundStyle(.secondary)
+
+                Spacer()
+
+                Button {
+                    exportData()
+                } label: {
+                    Label("Exportieren", systemImage: "square.and.arrow.up")
+                        .frame(maxWidth: .infinity)
+                }
+                .buttonStyle(.borderedProminent)
+                .padding()
+                .disabled(isExporting || syncCoordinator.syncHistory.isEmpty)
+            }
+            .padding()
+            .navigationTitle("Export")
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .cancellationAction) {
+                    Button("Abbrechen") {
+                        dismiss()
+                    }
+                }
+            }
+        }
+    }
+
+    private func exportData() {
+        isExporting = true
+
+        // In a real app, this would create and share a file
+        DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
+            isExporting = false
+            dismiss()
+        }
+    }
+}
+
+#Preview {
+    SettingsView()
+}
@@ -0,0 +1,407 @@
+import SwiftUI
+
+struct SourcesView: View {
+    @StateObject private var sourceManager = SourceManager.shared
+    @State private var selectedSource: HealthSource?
+    @State private var isRefreshing = false
+
+    var body: some View {
+        NavigationStack {
+            Group {
+                if sourceManager.sources.isEmpty && !sourceManager.isDiscovering {
+                    emptyState
+                } else {
+                    sourcesList
+                }
+            }
+            .navigationTitle("Quellen")
+            .toolbar {
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button {
+                        Task { await refreshSources() }
+                    } label: {
+                        if isRefreshing {
+                            ProgressView()
+                                .scaleEffect(0.8)
+                        } else {
+                            Image(systemName: "arrow.clockwise")
+                        }
+                    }
+                    .disabled(isRefreshing)
+                }
+            }
+            .sheet(item: $selectedSource) { source in
+                SourceDetailView(source: source)
+            }
+            .task {
+                if sourceManager.sources.isEmpty {
+                    await refreshSources()
+                }
+            }
+        }
+    }
+
+    // MARK: - Empty State
+
+    private var emptyState: some View {
+        VStack(spacing: 16) {
+            Image(systemName: "antenna.radiowaves.left.and.right")
+                .font(.system(size: 64))
+                .foregroundStyle(.secondary)
+
+            Text("Keine Quellen gefunden")
+                .font(.title2)
+                .fontWeight(.semibold)
+
+            Text("Verbinden Sie Geräte mit Apple Health")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+                .multilineTextAlignment(.center)
+
+            Button {
+                Task { await refreshSources() }
+            } label: {
+                Label("Aktualisieren", systemImage: "arrow.clockwise")
+            }
+            .buttonStyle(.bordered)
+        }
+        .padding()
+    }
+
+    // MARK: - Sources List
+
+    private var sourcesList: some View {
+        List {
+            ForEach(groupedSources.keys.sorted(by: { $0.priority > $1.priority }), id: \.self) { category in
+                Section(category.displayName) {
+                    ForEach(groupedSources[category] ?? []) { source in
+                        SourceRow(source: source)
+                            .contentShape(Rectangle())
+                            .onTapGesture {
+                                selectedSource = source
+                            }
+                    }
+                }
+            }
+        }
+        .listStyle(.insetGrouped)
+        .refreshable {
+            await refreshSources()
+        }
+    }
+
+    private var groupedSources: [SourceCategory: [HealthSource]] {
+        Dictionary(grouping: sourceManager.sources, by: { $0.category })
+    }
+
+    private func refreshSources() async {
+        isRefreshing = true
+        defer { isRefreshing = false }
+        await sourceManager.discoverSources()
+    }
+}
+
+// MARK: - Source Row
+
+struct SourceRow: View {
+    let source: HealthSource
+    @StateObject private var sourceManager = SourceManager.shared
+
+    var body: some View {
+        HStack {
+            Image(systemName: source.category.icon)
+                .font(.title2)
+                .foregroundStyle(.blue)
+                .frame(width: 40)
+
+            VStack(alignment: .leading, spacing: 4) {
+                Text(source.displayName)
+                    .font(.headline)
+
+                Text("\(source.supportedDataTypes.count) Datentypen")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+
+            Spacer()
+
+            if let status = sourceManager.sourceHealthStatus[source.id] {
+                Image(systemName: status.syncStatus.icon)
+                    .foregroundStyle(statusColor(for: status.syncStatus))
+            }
+
+            Image(systemName: "chevron.right")
+                .font(.caption)
+                .foregroundStyle(.secondary)
+        }
+        .padding(.vertical, 4)
+    }
+
+    private func statusColor(for status: SourceHealthStatus.SyncStatus) -> Color {
+        switch status {
+        case .recentlySynced: return .green
+        case .syncedToday: return .blue
+        case .stale: return .orange
+        case .veryStale, .neverSynced: return .red
+        }
+    }
+}
+
+// MARK: - Source Detail View
+
+struct SourceDetailView: View {
+    let source: HealthSource
+    @Environment(\.dismiss) private var dismiss
+    @StateObject private var sourceManager = SourceManager.shared
+    @State private var healthReport: SourceHealthReport?
+    @State private var isLoading = false
+
+    var body: some View {
+        NavigationStack {
+            ScrollView {
+                VStack(spacing: 20) {
+                    // Header
+                    headerSection
+
+                    // Capabilities
+                    capabilitiesSection
+
+                    // Data Types
+                    dataTypesSection
+
+                    // Health Report
+                    if let report = healthReport {
+                        healthReportSection(report)
+                    }
+
+                    // Priority Settings
+                    prioritySection
+                }
+                .padding()
+            }
+            .navigationTitle(source.displayName)
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .confirmationAction) {
+                    Button("Fertig") {
+                        dismiss()
+                    }
+                }
+            }
+            .task {
+                await loadHealthReport()
+            }
+        }
+    }
+
+    // MARK: - Header
+
+    private var headerSection: some View {
+        VStack(spacing: 12) {
+            Image(systemName: source.category.icon)
+                .font(.system(size: 48))
+                .foregroundStyle(.blue)
+
+            Text(source.displayName)
+                .font(.title2)
+                .fontWeight(.semibold)
+
+            Text(source.category.displayName)
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+
+            Text(source.bundleIdentifier)
+                .font(.caption)
+                .foregroundStyle(.secondary)
+                .textSelection(.enabled)
+        }
+        .padding()
+    }
+
+    // MARK: - Capabilities
+
+    private var capabilitiesSection: some View {
+        let capabilities = sourceManager.getSourceCapabilities(source)
+
+        return VStack(alignment: .leading, spacing: 12) {
+            Text("Fähigkeiten")
+                .font(.headline)
+
+            LazyVGrid(columns: [GridItem(.adaptive(minimum: 100))], spacing: 8) {
+                CapabilityBadge(name: "Schritte", available: capabilities.canMeasureSteps)
+                CapabilityBadge(name: "Herzfrequenz", available: capabilities.canMeasureHeartRate)
+                CapabilityBadge(name: "Blutdruck", available: capabilities.canMeasureBloodPressure)
+                CapabilityBadge(name: "SpO2", available: capabilities.canMeasureBloodOxygen)
+                CapabilityBadge(name: "Schlaf", available: capabilities.canMeasureSleep)
+                CapabilityBadge(name: "GPS", available: capabilities.hasGPS)
+            }
+        }
+        .padding()
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+
+    // MARK: - Data Types
+
+    private var dataTypesSection: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Unterstützte Datentypen")
+                .font(.headline)
+
+            ForEach(Array(source.supportedDataTypes).sorted(by: { $0.displayName < $1.displayName }), id: \.self) { dataType in
+                HStack {
+                    Image(systemName: dataType.icon)
+                        .foregroundStyle(.blue)
+                        .frame(width: 24)
+                    Text(dataType.displayName)
+                    Spacer()
+                    Text(dataType.unit)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+                .padding(.vertical, 4)
+            }
+        }
+        .padding()
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+
+    // MARK: - Health Report
+
+    private func healthReportSection(_ report: SourceHealthReport) -> some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Zustand")
+                .font(.headline)
+
+            HStack {
+                VStack(alignment: .leading) {
+                    Text("Datensätze (24h)")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Text("\(report.totalRecordCount)")
+                        .font(.title3)
+                        .fontWeight(.medium)
+                }
+
+                Spacer()
+
+                VStack(alignment: .trailing) {
+                    Text("Qualität")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Image(systemName: report.overallQuality.icon)
+                        .font(.title3)
+                        .foregroundStyle(qualityColor(report.overallQuality))
+                }
+            }
+
+            if let lastActivity = report.lastOverallActivity {
+                HStack {
+                    Text("Letzte Aktivität")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Spacer()
+                    Text(formattedDate(lastActivity))
+                        .font(.subheadline)
+                }
+            }
+
+            if report.hasSignificantGaps {
+                HStack {
+                    Image(systemName: "exclamationmark.triangle.fill")
+                        .foregroundStyle(.orange)
+                    Text("Datenlücken erkannt")
+                        .font(.subheadline)
+                }
+            }
+        }
+        .padding()
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+
+    // MARK: - Priority Section
+
+    private var prioritySection: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Priorität")
+                .font(.headline)
+
+            Text("Höhere Priorität bedeutet, dass Daten dieser Quelle bevorzugt werden")
+                .font(.caption)
+                .foregroundStyle(.secondary)
+
+            ForEach(Array(source.supportedDataTypes).sorted(by: { $0.displayName < $1.displayName }), id: \.self) { dataType in
+                HStack {
+                    Text(dataType.displayName)
+
+                    Spacer()
+
+                    Stepper(
+                        "\(sourceManager.getPriority(for: source, dataType: dataType))",
+                        value: Binding(
+                            get: { sourceManager.getPriority(for: source, dataType: dataType) },
+                            set: { sourceManager.setPriority($0, for: source, dataType: dataType) }
+                        ),
+                        in: 0...100,
+                        step: 10
+                    )
+                    .frame(width: 150)
+                }
+                .padding(.vertical, 4)
+            }
+        }
+        .padding()
+        .background(Color(.secondarySystemBackground))
+        .clipShape(RoundedRectangle(cornerRadius: 12))
+    }
+
+    // MARK: - Helpers
+
+    private func loadHealthReport() async {
+        isLoading = true
+        defer { isLoading = false }
+        healthReport = await sourceManager.getSourceHealth(source)
+    }
+
+    private func qualityColor(_ quality: DataQuality) -> Color {
+        switch quality {
+        case .complete: return .green
+        case .partial: return .yellow
+        case .missing: return .gray
+        case .invalid: return .red
+        }
+    }
+
+    private func formattedDate(_ date: Date) -> String {
+        let formatter = RelativeDateTimeFormatter()
+        formatter.unitsStyle = .abbreviated
+        return formatter.localizedString(for: date, relativeTo: Date())
+    }
+}
+
+// MARK: - Capability Badge
+
+struct CapabilityBadge: View {
+    let name: String
+    let available: Bool
+
+    var body: some View {
+        HStack(spacing: 4) {
+            Image(systemName: available ? "checkmark.circle.fill" : "xmark.circle")
+                .foregroundStyle(available ? .green : .secondary)
+            Text(name)
+                .font(.caption)
+                .foregroundStyle(available ? .primary : .secondary)
+        }
+        .padding(.horizontal, 8)
+        .padding(.vertical, 4)
+        .background(available ? Color.green.opacity(0.1) : Color.gray.opacity(0.1))
+        .clipShape(Capsule())
+    }
+}
+
+#Preview {
+    SourcesView()
+}
@@ -0,0 +1,379 @@
+<!DOCTYPE html>
+<html lang="de" data-lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>PromoMaster - Produkt-Promotion-Tool | Product Promotion Tool</title>
+
+    <!-- SEO Meta Tags -->
+    <meta name="description" content="Erstellen Sie automatisch professionelle Produktwerbung in Deutsch und Englisch. Generate professional product promotions in German and English.">
+    <meta name="keywords" content="Produktwerbung, Product Promotion, Marketing, Werbung, Advertising, Social Media, SEO, Product Launch">
+    <meta name="author" content="PromoMaster">
+    <meta name="robots" content="index, follow">
+
+    <!-- Open Graph / Facebook -->
+    <meta property="og:type" content="website">
+    <meta property="og:title" content="PromoMaster - Automatische Produktwerbung">
+    <meta property="og:description" content="Erstellen Sie automatisch professionelle Produktwerbung in Deutsch und Englisch.">
+    <meta property="og:locale" content="de_DE">
+    <meta property="og:locale:alternate" content="en_US">
+
+    <!-- Twitter Card -->
+    <meta name="twitter:card" content="summary_large_image">
+    <meta name="twitter:title" content="PromoMaster - Product Promotion Tool">
+    <meta name="twitter:description" content="Generate professional product promotions in German and English automatically.">
+
+    <!-- JSON-LD Structured Data -->
+    <script type="application/ld+json">
+    {
+        "@context": "https://schema.org",
+        "@type": "WebApplication",
+        "name": "PromoMaster",
+        "description": "Automatisches Produkt-Promotion-Tool in Deutsch und Englisch",
+        "applicationCategory": "Marketing",
+        "operatingSystem": "Web Browser",
+        "offers": {
+            "@type": "Offer",
+            "price": "0",
+            "priceCurrency": "EUR"
+        }
+    }
+    </script>
+
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap" rel="stylesheet">
+    <link rel="stylesheet" href="style.css">
+</head>
+<body>
+    <!-- Language Toggle -->
+    <div class="lang-toggle">
+        <button id="btn-de" class="lang-btn active" onclick="setLanguage('de')">DE</button>
+        <button id="btn-en" class="lang-btn" onclick="setLanguage('en')">EN</button>
+    </div>
+
+    <!-- Hero Section -->
+    <header class="hero">
+        <div class="hero-bg"></div>
+        <div class="container">
+            <h1 class="hero-title">
+                <span class="hero-icon">&#9889;</span>
+                PromoMaster
+            </h1>
+            <p class="hero-subtitle" data-de="Dein Produkt. Weltweit bekannt. Vollautomatisch." data-en="Your Product. Worldwide Fame. Fully Automatic.">Dein Produkt. Weltweit bekannt. Vollautomatisch.</p>
+        </div>
+    </header>
+
+    <!-- Main App -->
+    <main class="container">
+        <!-- Step 1: Product Input -->
+        <section class="card step-card" id="step1">
+            <div class="step-header">
+                <span class="step-number">1</span>
+                <h2 data-de="Produkt-Informationen" data-en="Product Information"></h2>
+            </div>
+            <div class="form-grid">
+                <div class="form-group">
+                    <label for="productName" data-de="Produktname *" data-en="Product Name *"></label>
+                    <input type="text" id="productName" data-de-placeholder="z.B. SuperWidget Pro" data-en-placeholder="e.g. SuperWidget Pro">
+                </div>
+                <div class="form-group">
+                    <label for="productCategory" data-de="Kategorie" data-en="Category"></label>
+                    <select id="productCategory">
+                        <option value="tech" data-de="Technologie" data-en="Technology"></option>
+                        <option value="fashion" data-de="Mode & Bekleidung" data-en="Fashion & Apparel"></option>
+                        <option value="food" data-de="Lebensmittel & Getr&auml;nke" data-en="Food & Beverages"></option>
+                        <option value="health" data-de="Gesundheit & Wellness" data-en="Health & Wellness"></option>
+                        <option value="home" data-de="Haus & Garten" data-en="Home & Garden"></option>
+                        <option value="sport" data-de="Sport & Fitness" data-en="Sports & Fitness"></option>
+                        <option value="beauty" data-de="Sch&ouml;nheit & Pflege" data-en="Beauty & Care"></option>
+                        <option value="education" data-de="Bildung & Kurse" data-en="Education & Courses"></option>
+                        <option value="software" data-de="Software & Apps" data-en="Software & Apps"></option>
+                        <option value="other" data-de="Sonstiges" data-en="Other"></option>
+                    </select>
+                </div>
+                <div class="form-group full-width">
+                    <label for="productDescription" data-de="Kurzbeschreibung *" data-en="Short Description *"></label>
+                    <textarea id="productDescription" rows="3" data-de-placeholder="Was macht dein Produkt besonders? (max. 200 Zeichen)" data-en-placeholder="What makes your product special? (max. 200 characters)" maxlength="200"></textarea>
+                    <span class="char-count"><span id="charCount">0</span>/200</span>
+                </div>
+                <div class="form-group">
+                    <label for="productPrice" data-de="Preis (optional)" data-en="Price (optional)"></label>
+                    <input type="text" id="productPrice" data-de-placeholder="z.B. 29,99 EUR" data-en-placeholder="e.g. $29.99">
+                </div>
+                <div class="form-group">
+                    <label for="productUrl" data-de="Website / Link (optional)" data-en="Website / Link (optional)"></label>
+                    <input type="url" id="productUrl" data-de-placeholder="https://dein-produkt.de" data-en-placeholder="https://your-product.com">
+                </div>
+                <div class="form-group full-width">
+                    <label for="productFeatures" data-de="Top-Features (kommagetrennt)" data-en="Top Features (comma-separated)"></label>
+                    <input type="text" id="productFeatures" data-de-placeholder="z.B. Schnell, Zuverl&auml;ssig, Einfach zu bedienen" data-en-placeholder="e.g. Fast, Reliable, Easy to use">
+                </div>
+                <div class="form-group full-width">
+                    <label for="targetAudience" data-de="Zielgruppe" data-en="Target Audience"></label>
+                    <input type="text" id="targetAudience" data-de-placeholder="z.B. Unternehmer, Studenten, Eltern" data-en-placeholder="e.g. Entrepreneurs, Students, Parents">
+                </div>
+            </div>
+        </section>
+
+        <!-- Step 2: Promotion Style -->
+        <section class="card step-card" id="step2">
+            <div class="step-header">
+                <span class="step-number">2</span>
+                <h2 data-de="Werbestil w&auml;hlen" data-en="Choose Promotion Style"></h2>
+            </div>
+            <div class="style-grid">
+                <div class="style-option selected" data-style="professional" onclick="selectStyle(this)">
+                    <span class="style-icon">&#128188;</span>
+                    <span class="style-label" data-de="Professionell" data-en="Professional"></span>
+                </div>
+                <div class="style-option" data-style="casual" onclick="selectStyle(this)">
+                    <span class="style-icon">&#128075;</span>
+                    <span class="style-label" data-de="Locker & Freundlich" data-en="Casual & Friendly"></span>
+                </div>
+                <div class="style-option" data-style="urgent" onclick="selectStyle(this)">
+                    <span class="style-icon">&#9889;</span>
+                    <span class="style-label" data-de="Dringend & FOMO" data-en="Urgent & FOMO"></span>
+                </div>
+                <div class="style-option" data-style="luxury" onclick="selectStyle(this)">
+                    <span class="style-icon">&#10024;</span>
+                    <span class="style-label" data-de="Premium & Luxus" data-en="Premium & Luxury"></span>
+                </div>
+                <div class="style-option" data-style="fun" onclick="selectStyle(this)">
+                    <span class="style-icon">&#127881;</span>
+                    <span class="style-label" data-de="Spa&szlig;ig & Kreativ" data-en="Fun & Creative"></span>
+                </div>
+                <div class="style-option" data-style="minimal" onclick="selectStyle(this)">
+                    <span class="style-icon">&#9711;</span>
+                    <span class="style-label" data-de="Minimalistisch" data-en="Minimalist"></span>
+                </div>
+            </div>
+        </section>
+
+        <!-- Generate Button -->
+        <div class="generate-section">
+            <button class="btn-generate" onclick="generateAll()" id="generateBtn">
+                <span class="btn-icon">&#9889;</span>
+                <span data-de="Alle Werbematerialien generieren" data-en="Generate All Promotion Materials"></span>
+            </button>
+        </div>
+
+        <!-- Results Section -->
+        <section id="results" class="results-section hidden">
+            <!-- Social Media Posts -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="&#128241; Social Media Posts" data-en="&#128241; Social Media Posts"></h3>
+                    <button class="btn-copy-all" onclick="copyAll('social')" data-de="Alle kopieren" data-en="Copy All"></button>
+                </div>
+
+                <div class="result-tabs">
+                    <button class="tab-btn active" onclick="switchTab(this, 'twitter')">Twitter/X</button>
+                    <button class="tab-btn" onclick="switchTab(this, 'instagram')">Instagram</button>
+                    <button class="tab-btn" onclick="switchTab(this, 'facebook')">Facebook</button>
+                    <button class="tab-btn" onclick="switchTab(this, 'linkedin')">LinkedIn</button>
+                    <button class="tab-btn" onclick="switchTab(this, 'tiktok')">TikTok</button>
+                </div>
+
+                <div class="tab-content" id="tab-twitter">
+                    <div class="lang-results">
+                        <div class="lang-result">
+                            <span class="lang-badge">DE</span>
+                            <div class="result-text" id="twitter-de"></div>
+                            <button class="btn-copy" onclick="copyText('twitter-de')">&#128203;</button>
+                        </div>
+                        <div class="lang-result">
+                            <span class="lang-badge en">EN</span>
+                            <div class="result-text" id="twitter-en"></div>
+                            <button class="btn-copy" onclick="copyText('twitter-en')">&#128203;</button>
+                        </div>
+                    </div>
+                </div>
+                <div class="tab-content hidden" id="tab-instagram">
+                    <div class="lang-results">
+                        <div class="lang-result">
+                            <span class="lang-badge">DE</span>
+                            <div class="result-text" id="instagram-de"></div>
+                            <button class="btn-copy" onclick="copyText('instagram-de')">&#128203;</button>
+                        </div>
+                        <div class="lang-result">
+                            <span class="lang-badge en">EN</span>
+                            <div class="result-text" id="instagram-en"></div>
+                            <button class="btn-copy" onclick="copyText('instagram-en')">&#128203;</button>
+                        </div>
+                    </div>
+                </div>
+                <div class="tab-content hidden" id="tab-facebook">
+                    <div class="lang-results">
+                        <div class="lang-result">
+                            <span class="lang-badge">DE</span>
+                            <div class="result-text" id="facebook-de"></div>
+                            <button class="btn-copy" onclick="copyText('facebook-de')">&#128203;</button>
+                        </div>
+                        <div class="lang-result">
+                            <span class="lang-badge en">EN</span>
+                            <div class="result-text" id="facebook-en"></div>
+                            <button class="btn-copy" onclick="copyText('facebook-en')">&#128203;</button>
+                        </div>
+                    </div>
+                </div>
+                <div class="tab-content hidden" id="tab-linkedin">
+                    <div class="lang-results">
+                        <div class="lang-result">
+                            <span class="lang-badge">DE</span>
+                            <div class="result-text" id="linkedin-de"></div>
+                            <button class="btn-copy" onclick="copyText('linkedin-de')">&#128203;</button>
+                        </div>
+                        <div class="lang-result">
+                            <span class="lang-badge en">EN</span>
+                            <div class="result-text" id="linkedin-en"></div>
+                            <button class="btn-copy" onclick="copyText('linkedin-en')">&#128203;</button>
+                        </div>
+                    </div>
+                </div>
+                <div class="tab-content hidden" id="tab-tiktok">
+                    <div class="lang-results">
+                        <div class="lang-result">
+                            <span class="lang-badge">DE</span>
+                            <div class="result-text" id="tiktok-de"></div>
+                            <button class="btn-copy" onclick="copyText('tiktok-de')">&#128203;</button>
+                        </div>
+                        <div class="lang-result">
+                            <span class="lang-badge en">EN</span>
+                            <div class="result-text" id="tiktok-en"></div>
+                            <button class="btn-copy" onclick="copyText('tiktok-en')">&#128203;</button>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Email Marketing -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="&#9993; E-Mail Marketing" data-en="&#9993; Email Marketing"></h3>
+                    <button class="btn-copy-all" onclick="copyAll('email')" data-de="Alle kopieren" data-en="Copy All"></button>
+                </div>
+                <div class="lang-results">
+                    <div class="lang-result">
+                        <span class="lang-badge">DE</span>
+                        <div class="result-text" id="email-de"></div>
+                        <button class="btn-copy" onclick="copyText('email-de')">&#128203;</button>
+                    </div>
+                    <div class="lang-result">
+                        <span class="lang-badge en">EN</span>
+                        <div class="result-text" id="email-en"></div>
+                        <button class="btn-copy" onclick="copyText('email-en')">&#128203;</button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- SEO Texts -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="&#128270; SEO-Texte & Metadaten" data-en="&#128270; SEO Texts & Metadata"></h3>
+                    <button class="btn-copy-all" onclick="copyAll('seo')" data-de="Alle kopieren" data-en="Copy All"></button>
+                </div>
+                <div class="lang-results">
+                    <div class="lang-result">
+                        <span class="lang-badge">DE</span>
+                        <div class="result-text" id="seo-de"></div>
+                        <button class="btn-copy" onclick="copyText('seo-de')">&#128203;</button>
+                    </div>
+                    <div class="lang-result">
+                        <span class="lang-badge en">EN</span>
+                        <div class="result-text" id="seo-en"></div>
+                        <button class="btn-copy" onclick="copyText('seo-en')">&#128203;</button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Press Release -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="&#128240; Pressemitteilung" data-en="&#128240; Press Release"></h3>
+                    <button class="btn-copy-all" onclick="copyAll('press')" data-de="Alle kopieren" data-en="Copy All"></button>
+                </div>
+                <div class="lang-results">
+                    <div class="lang-result">
+                        <span class="lang-badge">DE</span>
+                        <div class="result-text" id="press-de"></div>
+                        <button class="btn-copy" onclick="copyText('press-de')">&#128203;</button>
+                    </div>
+                    <div class="lang-result">
+                        <span class="lang-badge en">EN</span>
+                        <div class="result-text" id="press-en"></div>
+                        <button class="btn-copy" onclick="copyText('press-en')">&#128203;</button>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Slogan Generator -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="&#128161; Slogans & Taglines" data-en="&#128161; Slogans & Taglines"></h3>
+                </div>
+                <div class="slogan-grid" id="sloganGrid"></div>
+            </div>
+
+            <!-- Hashtag Cloud -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="# Hashtag-Wolke" data-en="# Hashtag Cloud"></h3>
+                    <button class="btn-copy-all" onclick="copyHashtags()" data-de="Alle kopieren" data-en="Copy All"></button>
+                </div>
+                <div class="hashtag-cloud" id="hashtagCloud"></div>
+            </div>
+
+            <!-- Landing Page Preview -->
+            <div class="card result-card">
+                <div class="result-header">
+                    <h3 data-de="&#127760; Landing Page HTML" data-en="&#127760; Landing Page HTML"></h3>
+                    <button class="btn-copy-all" onclick="copyText('landing-code')" data-de="HTML kopieren" data-en="Copy HTML"></button>
+                </div>
+                <div class="landing-preview-container">
+                    <div class="preview-toggle">
+                        <button class="preview-btn active" onclick="togglePreview('preview')" data-de="Vorschau" data-en="Preview"></button>
+                        <button class="preview-btn" onclick="togglePreview('code')" data-de="HTML-Code" data-en="HTML Code"></button>
+                    </div>
+                    <div id="landing-preview" class="landing-preview"></div>
+                    <pre id="landing-code" class="landing-code hidden"></pre>
+                </div>
+            </div>
+
+            <!-- Export Section -->
+            <div class="card result-card export-card">
+                <div class="result-header">
+                    <h3 data-de="&#128229; Alles exportieren" data-en="&#128229; Export Everything"></h3>
+                </div>
+                <div class="export-grid">
+                    <button class="btn-export" onclick="exportAs('txt')">
+                        <span class="export-icon">&#128196;</span>
+                        <span>TXT</span>
+                    </button>
+                    <button class="btn-export" onclick="exportAs('html')">
+                        <span class="export-icon">&#127760;</span>
+                        <span>HTML</span>
+                    </button>
+                    <button class="btn-export" onclick="exportAs('json')">
+                        <span class="export-icon">&#128218;</span>
+                        <span>JSON</span>
+                    </button>
+                    <button class="btn-export" onclick="exportAs('csv')">
+                        <span class="export-icon">&#128202;</span>
+                        <span>CSV</span>
+                    </button>
+                </div>
+            </div>
+        </section>
+    </main>
+
+    <!-- Toast Notification -->
+    <div class="toast hidden" id="toast"></div>
+
+    <!-- Footer -->
+    <footer class="footer">
+        <p data-de="PromoMaster - Vollautomatisches Produkt-Promotion-Tool" data-en="PromoMaster - Fully Automatic Product Promotion Tool"></p>
+    </footer>
+
+    <script src="promo.js"></script>
+</body>
+</html>
@@ -0,0 +1,813 @@
+// === PromoMaster - Product Promotion Tool ===
+// Vollautomatisches Produkt-Promotion-Tool in Deutsch und Englisch
+
+(function () {
+    'use strict';
+
+    // --- State ---
+    let currentLang = 'de';
+    let selectedStyle = 'professional';
+    let generatedData = null;
+
+    // --- Language System ---
+    function setLanguage(lang) {
+        currentLang = lang;
+        document.documentElement.setAttribute('data-lang', lang);
+        document.getElementById('btn-de').classList.toggle('active', lang === 'de');
+        document.getElementById('btn-en').classList.toggle('active', lang === 'en');
+
+        document.querySelectorAll('[data-de]').forEach(function (el) {
+            el.textContent = el.getAttribute('data-' + lang);
+        });
+
+        document.querySelectorAll('[data-de-placeholder]').forEach(function (el) {
+            el.placeholder = el.getAttribute('data-' + lang + '-placeholder');
+        });
+
+        document.querySelectorAll('select option').forEach(function (opt) {
+            var val = opt.getAttribute('data-' + lang);
+            if (val) opt.textContent = val;
+        });
+    }
+
+    window.setLanguage = setLanguage;
+
+    // --- Style Selection ---
+    function selectStyle(el) {
+        document.querySelectorAll('.style-option').forEach(function (s) {
+            s.classList.remove('selected');
+        });
+        el.classList.add('selected');
+        selectedStyle = el.getAttribute('data-style');
+    }
+
+    window.selectStyle = selectStyle;
+
+    // --- Character Counter ---
+    var descInput = document.getElementById('productDescription');
+    var charCount = document.getElementById('charCount');
+    if (descInput && charCount) {
+        descInput.addEventListener('input', function () {
+            charCount.textContent = descInput.value.length;
+        });
+    }
+
+    // --- Text Templates ---
+    var templates = {
+        professional: {
+            twitter: {
+                de: function (p) {
+                    return 'Entdecken Sie ' + p.name + ' \u2013 ' + p.desc + (p.features.length ? '\n\n\u2705 ' + p.features.slice(0, 3).join('\n\u2705 ') : '') + (p.url ? '\n\n\ud83d\udc49 ' + p.url : '') + (p.price ? '\n\ud83d\udcb0 ' + p.price : '') + '\n\n' + p.hashtags.slice(0, 4).join(' ');
+                },
+                en: function (p) {
+                    return 'Discover ' + p.name + ' \u2013 ' + p.descEn + (p.features.length ? '\n\n\u2705 ' + p.featuresEn.slice(0, 3).join('\n\u2705 ') : '') + (p.url ? '\n\n\ud83d\udc49 ' + p.url : '') + (p.price ? '\n\ud83d\udcb0 ' + p.price : '') + '\n\n' + p.hashtagsEn.slice(0, 4).join(' ');
+                }
+            },
+            instagram: {
+                de: function (p) {
+                    return '\u2728 ' + p.name + ' \u2013 Die Zukunft beginnt jetzt!\n\n' + p.desc + '\n\n' + (p.features.length ? 'Was ' + p.name + ' besonders macht:\n' + p.features.map(function (f) { return '\ud83d\udd39 ' + f; }).join('\n') + '\n\n' : '') + (p.audience ? '\ud83c\udfaf Perfekt f\u00fcr: ' + p.audience + '\n\n' : '') + (p.price ? '\ud83d\udcb0 Jetzt f\u00fcr nur ' + p.price + '\n\n' : '') + (p.url ? '\ud83d\udd17 Link in Bio \u2b06\ufe0f\n\n' : '') + p.hashtags.join(' ');
+                },
+                en: function (p) {
+                    return '\u2728 ' + p.name + ' \u2013 The future starts now!\n\n' + p.descEn + '\n\n' + (p.features.length ? 'What makes ' + p.name + ' special:\n' + p.featuresEn.map(function (f) { return '\ud83d\udd39 ' + f; }).join('\n') + '\n\n' : '') + (p.audience ? '\ud83c\udfaf Perfect for: ' + p.audienceEn + '\n\n' : '') + (p.price ? '\ud83d\udcb0 Now only ' + p.price + '\n\n' : '') + (p.url ? '\ud83d\udd17 Link in bio \u2b06\ufe0f\n\n' : '') + p.hashtagsEn.join(' ');
+                }
+            },
+            facebook: {
+                de: function (p) {
+                    return '\ud83d\ude80 Neu: ' + p.name + '!\n\n' + p.desc + '\n\n' + (p.features.length ? '\ud83d\udc47 Das sind die Highlights:\n\n' + p.features.map(function (f) { return '\u2714\ufe0f ' + f; }).join('\n') + '\n\n' : '') + (p.audience ? 'Perfekt f\u00fcr alle, die ' + p.audience + ' sind.\n\n' : '') + (p.price ? '\ud83d\udcb5 Preis: ' + p.price + '\n\n' : '') + (p.url ? '\ud83c\udf10 Mehr erfahren: ' + p.url + '\n\n' : '') + 'Was denkt ihr? Lasst es uns in den Kommentaren wissen! \ud83d\udc47\n\n' + p.hashtags.slice(0, 5).join(' ');
+                },
+                en: function (p) {
+                    return '\ud83d\ude80 New: ' + p.name + '!\n\n' + p.descEn + '\n\n' + (p.features.length ? '\ud83d\udc47 Here are the highlights:\n\n' + p.featuresEn.map(function (f) { return '\u2714\ufe0f ' + f; }).join('\n') + '\n\n' : '') + (p.audience ? 'Perfect for everyone who is ' + p.audienceEn + '.\n\n' : '') + (p.price ? '\ud83d\udcb5 Price: ' + p.price + '\n\n' : '') + (p.url ? '\ud83c\udf10 Learn more: ' + p.url + '\n\n' : '') + 'What do you think? Let us know in the comments! \ud83d\udc47\n\n' + p.hashtagsEn.slice(0, 5).join(' ');
+                }
+            },
+            linkedin: {
+                de: function (p) {
+                    return '\ud83d\udca1 ' + p.name + ' \u2013 Innovation trifft Effizienz\n\nIch freue mich, Ihnen ' + p.name + ' vorzustellen.\n\n' + p.desc + '\n\n' + (p.features.length ? 'Die wichtigsten Vorteile:\n\n' + p.features.map(function (f) { return '\u2192 ' + f; }).join('\n') + '\n\n' : '') + (p.audience ? 'Zielgruppe: ' + p.audience + '\n\n' : '') + (p.price ? 'Investition: ' + p.price + '\n\n' : '') + (p.url ? 'Erfahren Sie mehr: ' + p.url + '\n\n' : '') + '#Innovation #Business ' + p.hashtags.slice(0, 3).join(' ');
+                },
+                en: function (p) {
+                    return '\ud83d\udca1 ' + p.name + ' \u2013 Innovation meets Efficiency\n\nI\'m excited to introduce ' + p.name + ' to you.\n\n' + p.descEn + '\n\n' + (p.features.length ? 'Key benefits:\n\n' + p.featuresEn.map(function (f) { return '\u2192 ' + f; }).join('\n') + '\n\n' : '') + (p.audience ? 'Target audience: ' + p.audienceEn + '\n\n' : '') + (p.price ? 'Investment: ' + p.price + '\n\n' : '') + (p.url ? 'Learn more: ' + p.url + '\n\n' : '') + '#Innovation #Business ' + p.hashtagsEn.slice(0, 3).join(' ');
+                }
+            },
+            tiktok: {
+                de: function (p) {
+                    return '\ud83d\udd25 POV: Du entdeckst gerade ' + p.name + '!\n\n' + p.desc + '\n\n' + (p.features.length ? p.features.slice(0, 3).map(function (f) { return '\u2728 ' + f; }).join('\n') + '\n\n' : '') + (p.price ? '\ud83d\udcb0 ' + p.price + '\n\n' : '') + (p.url ? '\ud83d\udd17 Link in Bio!\n\n' : '') + p.hashtags.join(' ') + ' #fyp #viral #musthave';
+                },
+                en: function (p) {
+                    return '\ud83d\udd25 POV: You just discovered ' + p.name + '!\n\n' + p.descEn + '\n\n' + (p.features.length ? p.featuresEn.slice(0, 3).map(function (f) { return '\u2728 ' + f; }).join('\n') + '\n\n' : '') + (p.price ? '\ud83d\udcb0 ' + p.price + '\n\n' : '') + (p.url ? '\ud83d\udd17 Link in bio!\n\n' : '') + p.hashtagsEn.join(' ') + ' #fyp #viral #musthave';
+                }
+            }
+        },
+        casual: {
+            twitter: {
+                de: function (p) { return 'Hey Leute! \ud83d\udc4b Kennt ihr schon ' + p.name + '? ' + p.desc + (p.features.length ? '\n\nDas Beste daran:\n' + p.features.slice(0, 3).map(function (f) { return '\ud83d\udc4d ' + f; }).join('\n') : '') + (p.url ? '\n\nSchaut mal vorbei: ' + p.url : '') + '\n\n' + p.hashtags.slice(0, 4).join(' '); },
+                en: function (p) { return 'Hey everyone! \ud83d\udc4b Have you heard of ' + p.name + '? ' + p.descEn + (p.features.length ? '\n\nBest thing about it:\n' + p.featuresEn.slice(0, 3).map(function (f) { return '\ud83d\udc4d ' + f; }).join('\n') : '') + (p.url ? '\n\nCheck it out: ' + p.url : '') + '\n\n' + p.hashtagsEn.slice(0, 4).join(' '); }
+            },
+            instagram: {
+                de: function (p) { return 'Schaut mal was ich gefunden habe! \ud83e\udd29\n\n' + p.name + ' \u2013 ' + p.desc + '\n\n' + (p.features.length ? 'Warum ich es liebe:\n' + p.features.map(function (f) { return '\u2764\ufe0f ' + f; }).join('\n') + '\n\n' : '') + 'Wer will es auch haben? \ud83d\ude4b\u200d\u2640\ufe0f\n\n' + p.hashtags.join(' '); },
+                en: function (p) { return 'Look what I found! \ud83e\udd29\n\n' + p.name + ' \u2013 ' + p.descEn + '\n\n' + (p.features.length ? 'Why I love it:\n' + p.featuresEn.map(function (f) { return '\u2764\ufe0f ' + f; }).join('\n') + '\n\n' : '') + 'Who else wants this? \ud83d\ude4b\u200d\u2640\ufe0f\n\n' + p.hashtagsEn.join(' '); }
+            },
+            facebook: {
+                de: function (p) { return 'Hey Freunde! \ud83d\udc4b\n\nIch muss euch unbedingt von ' + p.name + ' erz\u00e4hlen!\n\n' + p.desc + '\n\n' + (p.features.length ? 'Was mich \u00fcberzeugt hat:\n' + p.features.map(function (f) { return '\ud83d\udc49 ' + f; }).join('\n') + '\n\n' : '') + (p.price ? 'Und das f\u00fcr ' + p.price + ' \u2013 richtig fair!\n\n' : '') + (p.url ? 'Hier gehts lang: ' + p.url + '\n\n' : '') + 'Kennt ihr das schon? \ud83d\ude0d'; },
+                en: function (p) { return 'Hey friends! \ud83d\udc4b\n\nI have to tell you about ' + p.name + '!\n\n' + p.descEn + '\n\n' + (p.features.length ? 'What convinced me:\n' + p.featuresEn.map(function (f) { return '\ud83d\udc49 ' + f; }).join('\n') + '\n\n' : '') + (p.price ? 'And all that for ' + p.price + ' \u2013 such a great deal!\n\n' : '') + (p.url ? 'Check it here: ' + p.url + '\n\n' : '') + 'Have you heard of this? \ud83d\ude0d'; }
+            },
+            linkedin: {
+                de: function (p) { return 'Moin zusammen! \ud83d\ude4c\n\nDarf ich vorstellen: ' + p.name + '!\n\n' + p.desc + '\n\n' + (p.features.length ? 'Das macht es so cool:\n' + p.features.map(function (f) { return '\u2022 ' + f; }).join('\n') + '\n\n' : '') + 'Wer hat Lust, das mal auszuprobieren?\n\n' + p.hashtags.slice(0, 3).join(' '); },
+                en: function (p) { return 'Hey everyone! \ud83d\ude4c\n\nLet me introduce: ' + p.name + '!\n\n' + p.descEn + '\n\n' + (p.features.length ? 'What makes it awesome:\n' + p.featuresEn.map(function (f) { return '\u2022 ' + f; }).join('\n') + '\n\n' : '') + 'Who wants to give it a try?\n\n' + p.hashtagsEn.slice(0, 3).join(' '); }
+            },
+            tiktok: {
+                de: function (p) { return 'OK das m\u00fcsst ihr sehen!! \ud83d\ude31\n\n' + p.name + ' ist einfach WILD!\n' + p.desc + '\n\n' + (p.features.length ? p.features.slice(0, 2).map(function (f) { return '\ud83e\udd2f ' + f; }).join('\n') + '\n\n' : '') + 'Kommentiert wenn ihrs auch braucht! \ud83d\udc47\n\n' + p.hashtags.join(' ') + ' #fyp #musthave'; },
+                en: function (p) { return 'OK you NEED to see this!! \ud83d\ude31\n\n' + p.name + ' is absolutely WILD!\n' + p.descEn + '\n\n' + (p.features.length ? p.featuresEn.slice(0, 2).map(function (f) { return '\ud83e\udd2f ' + f; }).join('\n') + '\n\n' : '') + 'Comment if you need this too! \ud83d\udc47\n\n' + p.hashtagsEn.join(' ') + ' #fyp #musthave'; }
+            }
+        },
+        urgent: {
+            twitter: {
+                de: function (p) { return '\u26a0\ufe0f NUR F\u00dcR KURZE ZEIT: ' + p.name + '!\n\n' + p.desc + '\n\n' + (p.price ? '\ud83d\udcb0 Jetzt zuschlagen: ' + p.price + '\n' : '') + '\u23f0 Begrenztes Angebot \u2013 nicht verpassen!\n\n' + (p.url ? '\ud83d\udc49 Sofort sichern: ' + p.url + '\n\n' : '') + p.hashtags.slice(0, 4).join(' '); },
+                en: function (p) { return '\u26a0\ufe0f LIMITED TIME ONLY: ' + p.name + '!\n\n' + p.descEn + '\n\n' + (p.price ? '\ud83d\udcb0 Get it now: ' + p.price + '\n' : '') + '\u23f0 Limited offer \u2013 don\'t miss out!\n\n' + (p.url ? '\ud83d\udc49 Grab yours: ' + p.url + '\n\n' : '') + p.hashtagsEn.slice(0, 4).join(' '); }
+            },
+            instagram: {
+                de: function (p) { return '\ud83d\udea8 ACHTUNG! \ud83d\udea8\n\n' + p.name + ' ist DA!\n\n' + p.desc + '\n\n' + (p.features.length ? '\ud83d\udd25 ' + p.features.join(' \u2022 ') + '\n\n' : '') + '\u23f3 Nur solange der Vorrat reicht!\n' + (p.price ? '\ud83d\udcb0 ' + p.price + '\n\n' : '') + 'JETZT HANDELN bevor es zu sp\u00e4t ist! \ud83d\udc47\n\n' + p.hashtags.join(' '); },
+                en: function (p) { return '\ud83d\udea8 ATTENTION! \ud83d\udea8\n\n' + p.name + ' is HERE!\n\n' + p.descEn + '\n\n' + (p.features.length ? '\ud83d\udd25 ' + p.featuresEn.join(' \u2022 ') + '\n\n' : '') + '\u23f3 Only while supplies last!\n' + (p.price ? '\ud83d\udcb0 ' + p.price + '\n\n' : '') + 'ACT NOW before it\'s too late! \ud83d\udc47\n\n' + p.hashtagsEn.join(' '); }
+            },
+            facebook: {
+                de: function (p) { return '\ud83d\udea8\ud83d\udea8\ud83d\udea8 EILMELDUNG \ud83d\udea8\ud83d\udea8\ud83d\udea8\n\n' + p.name + ' ist endlich verf\u00fcgbar!\n\n' + p.desc + '\n\n' + (p.features.length ? 'Die Fakten:\n' + p.features.map(function (f) { return '\u26a1 ' + f; }).join('\n') + '\n\n' : '') + '\u23f0 ACHTUNG: Angebot endet bald!\n' + (p.price ? '\ud83d\udcb5 Nur ' + p.price + '\n' : '') + (p.url ? '\n\ud83d\udc49 SOFORT ZUSCHLAGEN: ' + p.url : ''); },
+                en: function (p) { return '\ud83d\udea8\ud83d\udea8\ud83d\udea8 BREAKING \ud83d\udea8\ud83d\udea8\ud83d\udea8\n\n' + p.name + ' is finally available!\n\n' + p.descEn + '\n\n' + (p.features.length ? 'The facts:\n' + p.featuresEn.map(function (f) { return '\u26a1 ' + f; }).join('\n') + '\n\n' : '') + '\u23f0 WARNING: Offer ends soon!\n' + (p.price ? '\ud83d\udcb5 Only ' + p.price + '\n' : '') + (p.url ? '\n\ud83d\udc49 GRAB IT NOW: ' + p.url : ''); }
+            },
+            linkedin: {
+                de: function (p) { return '\ud83d\udea8 Dringende Marktchance: ' + p.name + '\n\n' + p.desc + '\n\n' + (p.features.length ? 'Schl\u00fcsselvorteile:\n' + p.features.map(function (f) { return '\u2192 ' + f; }).join('\n') + '\n\n' : '') + 'Dieses Angebot ist zeitlich begrenzt. Wer jetzt nicht handelt, verpasst eine einmalige Gelegenheit.\n\n' + (p.url ? p.url + '\n\n' : '') + p.hashtags.slice(0, 3).join(' '); },
+                en: function (p) { return '\ud83d\udea8 Urgent Market Opportunity: ' + p.name + '\n\n' + p.descEn + '\n\n' + (p.features.length ? 'Key advantages:\n' + p.featuresEn.map(function (f) { return '\u2192 ' + f; }).join('\n') + '\n\n' : '') + 'This offer is time-limited. Those who don\'t act now will miss a unique opportunity.\n\n' + (p.url ? p.url + '\n\n' : '') + p.hashtagsEn.slice(0, 3).join(' '); }
+            },
+            tiktok: {
+                de: function (p) { return '\ud83d\udea8 STOP SCROLLING! \ud83d\udea8\n\n' + p.name + ' \u2013 ' + p.desc + '\n\n' + '\u23f0 Letzte Chance!\n' + (p.price ? '\ud83d\udcb0 ' + p.price + '\n' : '') + '\nLINK IN BIO BEVOR ES WEG IST!\n\n' + p.hashtags.join(' ') + ' #fyp #limitedoffer'; },
+                en: function (p) { return '\ud83d\udea8 STOP SCROLLING! \ud83d\udea8\n\n' + p.name + ' \u2013 ' + p.descEn + '\n\n' + '\u23f0 Last chance!\n' + (p.price ? '\ud83d\udcb0 ' + p.price + '\n' : '') + '\nLINK IN BIO BEFORE IT\'S GONE!\n\n' + p.hashtagsEn.join(' ') + ' #fyp #limitedoffer'; }
+            }
+        },
+        luxury: {
+            twitter: {
+                de: function (p) { return '\u2728 ' + p.name + '\n\nExklusivit\u00e4t neu definiert.\n' + p.desc + '\n\n' + (p.price ? 'Ab ' + p.price + '\n' : '') + (p.url ? '\n' + p.url : '') + '\n\n' + p.hashtags.slice(0, 3).join(' ') + ' #Luxus #Premium'; },
+                en: function (p) { return '\u2728 ' + p.name + '\n\nRedefining exclusivity.\n' + p.descEn + '\n\n' + (p.price ? 'From ' + p.price + '\n' : '') + (p.url ? '\n' + p.url : '') + '\n\n' + p.hashtagsEn.slice(0, 3).join(' ') + ' #Luxury #Premium'; }
+            },
+            instagram: {
+                de: function (p) { return '\u2726 ' + p.name.toUpperCase() + ' \u2726\n\n' + p.desc + '\n\n' + (p.features.length ? 'Exklusive Merkmale:\n' + p.features.map(function (f) { return '\u2726 ' + f; }).join('\n') + '\n\n' : '') + 'F\u00fcr alle, die das Beste verdienen.\n\n' + (p.price ? '\u2726 ' + p.price + '\n\n' : '') + p.hashtags.join(' ') + ' #Luxury #Exclusive'; },
+                en: function (p) { return '\u2726 ' + p.name.toUpperCase() + ' \u2726\n\n' + p.descEn + '\n\n' + (p.features.length ? 'Exclusive features:\n' + p.featuresEn.map(function (f) { return '\u2726 ' + f; }).join('\n') + '\n\n' : '') + 'For those who deserve the finest.\n\n' + (p.price ? '\u2726 ' + p.price + '\n\n' : '') + p.hashtagsEn.join(' ') + ' #Luxury #Exclusive'; }
+            },
+            facebook: {
+                de: function (p) { return '\u2014\u2014\u2014 ' + p.name.toUpperCase() + ' \u2014\u2014\u2014\n\n' + p.desc + '\n\n' + (p.features.length ? p.features.map(function (f) { return '\u25c7 ' + f; }).join('\n') + '\n\n' : '') + 'Perfektion kennt keine Kompromisse.\n\n' + (p.price ? 'Ab ' + p.price + '\n' : '') + (p.url ? '\nEntdecken Sie mehr: ' + p.url : ''); },
+                en: function (p) { return '\u2014\u2014\u2014 ' + p.name.toUpperCase() + ' \u2014\u2014\u2014\n\n' + p.descEn + '\n\n' + (p.features.length ? p.featuresEn.map(function (f) { return '\u25c7 ' + f; }).join('\n') + '\n\n' : '') + 'Perfection knows no compromise.\n\n' + (p.price ? 'From ' + p.price + '\n' : '') + (p.url ? '\nDiscover more: ' + p.url : ''); }
+            },
+            linkedin: {
+                de: function (p) { return p.name + ' \u2013 Exzellenz in jeder Hinsicht\n\n' + p.desc + '\n\n' + (p.features.length ? p.features.map(function (f) { return '\u2022 ' + f; }).join('\n') + '\n\n' : '') + 'Wir setzen Ma\u00dfst\u00e4be f\u00fcr Premium-Qualit\u00e4t.\n\n' + (p.url ? p.url + '\n\n' : '') + '#Premium #Excellence ' + p.hashtags.slice(0, 2).join(' '); },
+                en: function (p) { return p.name + ' \u2013 Excellence in every way\n\n' + p.descEn + '\n\n' + (p.features.length ? p.featuresEn.map(function (f) { return '\u2022 ' + f; }).join('\n') + '\n\n' : '') + 'We set the standard for premium quality.\n\n' + (p.url ? p.url + '\n\n' : '') + '#Premium #Excellence ' + p.hashtagsEn.slice(0, 2).join(' '); }
+            },
+            tiktok: {
+                de: function (p) { return '\u2728 ' + p.name + ' \u2013 Luxus der n\u00e4chsten Generation\n\n' + p.desc + '\n\n' + (p.price ? '\u2726 ' + p.price + '\n\n' : '') + p.hashtags.join(' ') + ' #luxury #aesthetic #premium'; },
+                en: function (p) { return '\u2728 ' + p.name + ' \u2013 Next generation luxury\n\n' + p.descEn + '\n\n' + (p.price ? '\u2726 ' + p.price + '\n\n' : '') + p.hashtagsEn.join(' ') + ' #luxury #aesthetic #premium'; }
+            }
+        },
+        fun: {
+            twitter: {
+                de: function (p) { return '\ud83c\udf89 YOOO! ' + p.name + ' ist da und es ist der HAMMER! \ud83d\udd28\n\n' + p.desc + '\n\n' + (p.features.length ? p.features.slice(0, 3).map(function (f) { return '\ud83c\udf1f ' + f; }).join('\n') + '\n' : '') + (p.url ? '\n\ud83d\ude80 Ab gehts: ' + p.url : '') + '\n\n' + p.hashtags.slice(0, 4).join(' '); },
+                en: function (p) { return '\ud83c\udf89 YOOO! ' + p.name + ' is here and it\'s AMAZING! \ud83d\udd28\n\n' + p.descEn + '\n\n' + (p.features.length ? p.featuresEn.slice(0, 3).map(function (f) { return '\ud83c\udf1f ' + f; }).join('\n') + '\n' : '') + (p.url ? '\n\ud83d\ude80 Let\'s go: ' + p.url : '') + '\n\n' + p.hashtagsEn.slice(0, 4).join(' '); }
+            },
+            instagram: {
+                de: function (p) { return '\ud83e\udd2f OKAY WOW \ud83e\udd2f\n\n' + p.name + ' hat mein Leben ver\u00e4ndert und ich bin NICHT dramatisch! \ud83d\ude02\n\n' + p.desc + '\n\n' + (p.features.length ? 'Reasons to love it:\n' + p.features.map(function (f) { return '\ud83d\udcab ' + f; }).join('\n') + '\n\n' : '') + 'Wer ist dabei?! \ud83d\ude4b\u200d\u2642\ufe0f\n\n' + p.hashtags.join(' '); },
+                en: function (p) { return '\ud83e\udd2f OKAY WOW \ud83e\udd2f\n\n' + p.name + ' changed my life and I\'m NOT being dramatic! \ud83d\ude02\n\n' + p.descEn + '\n\n' + (p.features.length ? 'Reasons to love it:\n' + p.featuresEn.map(function (f) { return '\ud83d\udcab ' + f; }).join('\n') + '\n\n' : '') + 'Who\'s in?! \ud83d\ude4b\u200d\u2642\ufe0f\n\n' + p.hashtagsEn.join(' '); }
+            },
+            facebook: {
+                de: function (p) { return '\ud83c\udf89\ud83c\udf89\ud83c\udf89 ES IST SOWEIT! \ud83c\udf89\ud83c\udf89\ud83c\udf89\n\n' + p.name + ' ist gelandet und wir k\u00f6nnen nicht aufh\u00f6ren dar\u00fcber zu reden!\n\n' + p.desc + '\n\n' + (p.features.length ? '\ud83d\ude0d Das ist alles drin:\n' + p.features.map(function (f) { return '\ud83d\udca5 ' + f; }).join('\n') + '\n\n' : '') + (p.price ? 'Und das Beste? Nur ' + p.price + '! \ud83e\udd11\n\n' : '') + 'TAGGT jemanden der das braucht! \ud83d\udc47\ud83d\udc47\ud83d\udc47'; },
+                en: function (p) { return '\ud83c\udf89\ud83c\udf89\ud83c\udf89 IT\'S HERE! \ud83c\udf89\ud83c\udf89\ud83c\udf89\n\n' + p.name + ' has landed and we can\'t stop talking about it!\n\n' + p.descEn + '\n\n' + (p.features.length ? '\ud83d\ude0d Here\'s what you get:\n' + p.featuresEn.map(function (f) { return '\ud83d\udca5 ' + f; }).join('\n') + '\n\n' : '') + (p.price ? 'Best part? Only ' + p.price + '! \ud83e\udd11\n\n' : '') + 'TAG someone who needs this! \ud83d\udc47\ud83d\udc47\ud83d\udc47'; }
+            },
+            linkedin: {
+                de: function (p) { return '\ud83d\ude80 Plot Twist: ' + p.name + ' existiert jetzt!\n\n' + p.desc + '\n\n' + (p.features.length ? 'Die Highlights (ja, es wird noch besser):\n' + p.features.map(function (f) { return '\ud83d\udcaa ' + f; }).join('\n') + '\n\n' : '') + 'Wer will mitmachen? Schreibt mir! \ud83d\ude0e\n\n' + p.hashtags.slice(0, 3).join(' '); },
+                en: function (p) { return '\ud83d\ude80 Plot Twist: ' + p.name + ' now exists!\n\n' + p.descEn + '\n\n' + (p.features.length ? 'The highlights (yes, it gets even better):\n' + p.featuresEn.map(function (f) { return '\ud83d\udcaa ' + f; }).join('\n') + '\n\n' : '') + 'Who\'s in? DM me! \ud83d\ude0e\n\n' + p.hashtagsEn.slice(0, 3).join(' '); }
+            },
+            tiktok: {
+                de: function (p) { return '\ud83e\udee3 Wenn du ' + p.name + ' noch nicht kennst, lebst du unter einem Stein!\n\n' + p.desc + '\n\n' + (p.price ? '\ud83d\udcb0 ' + p.price + ' \u2013 SCHNAPPER!\n' : '') + '\nSpeichern & Teilen nicht vergessen! \ud83d\ude4f\n\n' + p.hashtags.join(' ') + ' #fyp #gamechanger'; },
+                en: function (p) { return '\ud83e\udee3 If you don\'t know ' + p.name + ' yet, you\'re living under a rock!\n\n' + p.descEn + '\n\n' + (p.price ? '\ud83d\udcb0 ' + p.price + ' \u2013 STEAL!\n' : '') + '\nSave & Share! \ud83d\ude4f\n\n' + p.hashtagsEn.join(' ') + ' #fyp #gamechanger'; }
+            }
+        },
+        minimal: {
+            twitter: {
+                de: function (p) { return p.name + '.\n' + p.desc + (p.url ? '\n\n' + p.url : '') + '\n\n' + p.hashtags.slice(0, 3).join(' '); },
+                en: function (p) { return p.name + '.\n' + p.descEn + (p.url ? '\n\n' + p.url : '') + '\n\n' + p.hashtagsEn.slice(0, 3).join(' '); }
+            },
+            instagram: {
+                de: function (p) { return p.name + '\n\n' + p.desc + (p.features.length ? '\n\n' + p.features.join(' / ') : '') + '\n\n' + p.hashtags.join(' '); },
+                en: function (p) { return p.name + '\n\n' + p.descEn + (p.features.length ? '\n\n' + p.featuresEn.join(' / ') : '') + '\n\n' + p.hashtagsEn.join(' '); }
+            },
+            facebook: {
+                de: function (p) { return p.name + '\n\n' + p.desc + (p.features.length ? '\n\n' + p.features.join(' \u2022 ') : '') + (p.price ? '\n\n' + p.price : '') + (p.url ? '\n\n' + p.url : ''); },
+                en: function (p) { return p.name + '\n\n' + p.descEn + (p.features.length ? '\n\n' + p.featuresEn.join(' \u2022 ') : '') + (p.price ? '\n\n' + p.price : '') + (p.url ? '\n\n' + p.url : ''); }
+            },
+            linkedin: {
+                de: function (p) { return p.name + '\n\n' + p.desc + (p.features.length ? '\n\n' + p.features.map(function (f) { return '\u2192 ' + f; }).join('\n') : '') + (p.url ? '\n\n' + p.url : ''); },
+                en: function (p) { return p.name + '\n\n' + p.descEn + (p.features.length ? '\n\n' + p.featuresEn.map(function (f) { return '\u2192 ' + f; }).join('\n') : '') + (p.url ? '\n\n' + p.url : ''); }
+            },
+            tiktok: {
+                de: function (p) { return p.name + '\n' + p.desc + '\n\n' + p.hashtags.slice(0, 5).join(' ') + ' #minimal'; },
+                en: function (p) { return p.name + '\n' + p.descEn + '\n\n' + p.hashtagsEn.slice(0, 5).join(' ') + ' #minimal'; }
+            }
+        }
+    };
+
+    // --- Email Templates ---
+    var emailTemplates = {
+        de: function (p) {
+            return 'Betreff: Entdecken Sie ' + p.name + ' \u2013 ' + p.desc.substring(0, 60) + '...\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n\n' +
+                'Sehr geehrte Damen und Herren,\n\n' +
+                'wir freuen uns, Ihnen ' + p.name + ' vorzustellen \u2013 ' + p.desc + '\n\n' +
+                (p.features.length ?
+                    'Die wichtigsten Vorteile auf einen Blick:\n\n' +
+                    p.features.map(function (f) { return '  \u2714 ' + f; }).join('\n') + '\n\n' : '') +
+                (p.audience ? 'Ideal f\u00fcr: ' + p.audience + '\n\n' : '') +
+                (p.price ? 'Unser Angebot: ' + p.price + '\n\n' : '') +
+                (p.url ? '\u27a1 Jetzt mehr erfahren: ' + p.url + '\n\n' : '') +
+                'Haben Sie Fragen? Antworten Sie einfach auf diese E-Mail \u2013 wir helfen Ihnen gerne weiter.\n\n' +
+                'Mit freundlichen Gr\u00fc\u00dfen,\n' +
+                'Ihr ' + p.name + ' Team\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n' +
+                'Sie erhalten diese E-Mail, weil Sie sich f\u00fcr ' + p.name + ' interessieren.\n' +
+                'Abmelden | Datenschutz | Impressum';
+        },
+        en: function (p) {
+            return 'Subject: Discover ' + p.name + ' \u2013 ' + p.descEn.substring(0, 60) + '...\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n\n' +
+                'Dear Customer,\n\n' +
+                'We are excited to introduce ' + p.name + ' \u2013 ' + p.descEn + '\n\n' +
+                (p.features.length ?
+                    'Key benefits at a glance:\n\n' +
+                    p.featuresEn.map(function (f) { return '  \u2714 ' + f; }).join('\n') + '\n\n' : '') +
+                (p.audience ? 'Ideal for: ' + p.audienceEn + '\n\n' : '') +
+                (p.price ? 'Our offer: ' + p.price + '\n\n' : '') +
+                (p.url ? '\u27a1 Learn more: ' + p.url + '\n\n' : '') +
+                'Have questions? Simply reply to this email \u2013 we\'re happy to help.\n\n' +
+                'Best regards,\n' +
+                'The ' + p.name + ' Team\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n' +
+                'You received this email because you showed interest in ' + p.name + '.\n' +
+                'Unsubscribe | Privacy Policy | Legal';
+        }
+    };
+
+    // --- SEO Templates ---
+    var seoTemplates = {
+        de: function (p) {
+            return 'META TITLE:\n' + p.name + ' \u2013 ' + p.desc.substring(0, 50) + ' | Jetzt entdecken\n\n' +
+                'META DESCRIPTION:\n' + p.desc + (p.features.length ? ' \u2714 ' + p.features.slice(0, 3).join(' \u2714 ') : '') + (p.price ? ' Ab ' + p.price + '.' : '') + ' Jetzt informieren!\n\n' +
+                'SEO KEYWORDS:\n' + p.name + ', ' + p.name.toLowerCase() + ' kaufen, ' + p.name.toLowerCase() + ' test, ' + p.name.toLowerCase() + ' erfahrungen, ' +
+                (p.category ? p.categoryDe + ', ' : '') + 'beste ' + p.name.toLowerCase() + ', ' + p.name.toLowerCase() + ' vergleich, ' + p.name.toLowerCase() + ' angebot\n\n' +
+                'H1 \u00dcBERSCHRIFT:\n' + p.name + ' \u2013 ' + p.desc + '\n\n' +
+                'H2 \u00dcBERSCHRIFTEN:\n' +
+                'Warum ' + p.name + '?\n' +
+                'Funktionen & Vorteile\n' +
+                'F\u00fcr wen ist ' + p.name + ' geeignet?\n' +
+                'Jetzt ' + p.name + ' bestellen\n\n' +
+                'ALT-TEXT F\u00dcR BILDER:\n' +
+                p.name + ' Produktbild \u2013 ' + p.desc.substring(0, 60);
+        },
+        en: function (p) {
+            return 'META TITLE:\n' + p.name + ' \u2013 ' + p.descEn.substring(0, 50) + ' | Discover Now\n\n' +
+                'META DESCRIPTION:\n' + p.descEn + (p.features.length ? ' \u2714 ' + p.featuresEn.slice(0, 3).join(' \u2714 ') : '') + (p.price ? ' From ' + p.price + '.' : '') + ' Learn more now!\n\n' +
+                'SEO KEYWORDS:\n' + p.name + ', buy ' + p.name.toLowerCase() + ', ' + p.name.toLowerCase() + ' review, ' + p.name.toLowerCase() + ' features, ' +
+                (p.category ? p.categoryEn + ', ' : '') + 'best ' + p.name.toLowerCase() + ', ' + p.name.toLowerCase() + ' comparison, ' + p.name.toLowerCase() + ' deal\n\n' +
+                'H1 HEADING:\n' + p.name + ' \u2013 ' + p.descEn + '\n\n' +
+                'H2 HEADINGS:\n' +
+                'Why ' + p.name + '?\n' +
+                'Features & Benefits\n' +
+                'Who is ' + p.name + ' for?\n' +
+                'Order ' + p.name + ' Now\n\n' +
+                'IMAGE ALT TEXT:\n' +
+                p.name + ' product image \u2013 ' + p.descEn.substring(0, 60);
+        }
+    };
+
+    // --- Press Release Templates ---
+    var pressTemplates = {
+        de: function (p) {
+            var today = new Date().toLocaleDateString('de-DE', { year: 'numeric', month: 'long', day: 'numeric' });
+            return 'PRESSEMITTEILUNG\n' +
+                'Datum: ' + today + '\n' +
+                'Zur sofortigen Ver\u00f6ffentlichung\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n\n' +
+                p.name + ': ' + p.desc + '\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n\n' +
+                'Wir freuen uns, die Verf\u00fcgbarkeit von ' + p.name + ' bekannt zu geben. ' + p.desc + '\n\n' +
+                (p.features.length ?
+                    'Hauptmerkmale von ' + p.name + ':\n\n' +
+                    p.features.map(function (f) { return '  \u2022 ' + f; }).join('\n') + '\n\n' : '') +
+                (p.audience ? '"' + p.name + ' wurde speziell f\u00fcr ' + p.audience + ' entwickelt", erkl\u00e4rt das Entwicklerteam.\n\n' : '') +
+                (p.price ? 'Verf\u00fcgbarkeit & Preis:\n' + p.name + ' ist ab sofort zum Preis von ' + p.price + ' erh\u00e4ltlich.\n\n' : '') +
+                (p.url ? 'Weitere Informationen finden Sie unter: ' + p.url + '\n\n' : '') +
+                'Pressekontakt:\n' +
+                'E-Mail: presse@' + p.name.toLowerCase().replace(/\s+/g, '') + '.de\n' +
+                'Web: ' + (p.url || 'www.' + p.name.toLowerCase().replace(/\s+/g, '') + '.de') + '\n\n' +
+                '###';
+        },
+        en: function (p) {
+            var today = new Date().toLocaleDateString('en-US', { year: 'numeric', month: 'long', day: 'numeric' });
+            return 'PRESS RELEASE\n' +
+                'Date: ' + today + '\n' +
+                'For Immediate Release\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n\n' +
+                p.name + ': ' + p.descEn + '\n\n' +
+                '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\n\n' +
+                'We are pleased to announce the availability of ' + p.name + '. ' + p.descEn + '\n\n' +
+                (p.features.length ?
+                    'Key Features of ' + p.name + ':\n\n' +
+                    p.featuresEn.map(function (f) { return '  \u2022 ' + f; }).join('\n') + '\n\n' : '') +
+                (p.audience ? '"' + p.name + ' was specifically designed for ' + p.audienceEn + '," says the development team.\n\n' : '') +
+                (p.price ? 'Availability & Pricing:\n' + p.name + ' is available now at ' + p.price + '.\n\n' : '') +
+                (p.url ? 'For more information, visit: ' + p.url + '\n\n' : '') +
+                'Press Contact:\n' +
+                'Email: press@' + p.name.toLowerCase().replace(/\s+/g, '') + '.com\n' +
+                'Web: ' + (p.url || 'www.' + p.name.toLowerCase().replace(/\s+/g, '') + '.com') + '\n\n' +
+                '###';
+        }
+    };
+
+    // --- Category Mapping ---
+    var categoryNames = {
+        tech: { de: 'Technologie', en: 'Technology' },
+        fashion: { de: 'Mode & Bekleidung', en: 'Fashion & Apparel' },
+        food: { de: 'Lebensmittel & Getr\u00e4nke', en: 'Food & Beverages' },
+        health: { de: 'Gesundheit & Wellness', en: 'Health & Wellness' },
+        home: { de: 'Haus & Garten', en: 'Home & Garden' },
+        sport: { de: 'Sport & Fitness', en: 'Sports & Fitness' },
+        beauty: { de: 'Sch\u00f6nheit & Pflege', en: 'Beauty & Care' },
+        education: { de: 'Bildung & Kurse', en: 'Education & Courses' },
+        software: { de: 'Software & Apps', en: 'Software & Apps' },
+        other: { de: 'Sonstiges', en: 'Other' }
+    };
+
+    // --- Gather Product Data ---
+    function getProductData() {
+        var name = document.getElementById('productName').value.trim();
+        var desc = document.getElementById('productDescription').value.trim();
+        var price = document.getElementById('productPrice').value.trim();
+        var url = document.getElementById('productUrl').value.trim();
+        var features = document.getElementById('productFeatures').value.trim();
+        var audience = document.getElementById('targetAudience').value.trim();
+        var category = document.getElementById('productCategory').value;
+
+        if (!name || !desc) {
+            showToast(currentLang === 'de' ? 'Bitte Produktname und Beschreibung eingeben!' : 'Please enter product name and description!');
+            return null;
+        }
+
+        var featureList = features ? features.split(',').map(function (f) { return f.trim(); }).filter(Boolean) : [];
+        var catInfo = categoryNames[category] || { de: '', en: '' };
+
+        return {
+            name: name,
+            desc: desc,
+            descEn: desc, // User provides in their language; used as-is
+            price: price,
+            url: url,
+            features: featureList,
+            featuresEn: featureList,
+            audience: audience,
+            audienceEn: audience,
+            category: category,
+            categoryDe: catInfo.de,
+            categoryEn: catInfo.en,
+            hashtags: generateHashtags(name, featureList, category, 'de'),
+            hashtagsEn: generateHashtags(name, featureList, category, 'en')
+        };
+    }
+
+    // --- Generate Hashtags ---
+    function generateHashtags(name, features, category, lang) {
+        var tags = [];
+        tags.push('#' + name.replace(/\s+/g, ''));
+
+        var catTags = {
+            tech: { de: ['#Technologie', '#Innovation', '#TechNews', '#Digital', '#Gadget'], en: ['#Technology', '#Innovation', '#TechNews', '#Digital', '#Gadget'] },
+            fashion: { de: ['#Mode', '#Fashion', '#Style', '#OOTD', '#Trend'], en: ['#Fashion', '#Style', '#OOTD', '#Trend', '#Outfit'] },
+            food: { de: ['#Foodie', '#Lecker', '#Essen', '#Kochen', '#Genuss'], en: ['#Foodie', '#Delicious', '#FoodLover', '#Cooking', '#Yummy'] },
+            health: { de: ['#Gesundheit', '#Wellness', '#Fitness', '#Wohlbefinden'], en: ['#Health', '#Wellness', '#Fitness', '#Wellbeing'] },
+            home: { de: ['#Zuhause', '#Wohnen', '#Interior', '#HomeDecor'], en: ['#Home', '#Living', '#Interior', '#HomeDecor'] },
+            sport: { de: ['#Sport', '#Fitness', '#Training', '#Motivation'], en: ['#Sports', '#Fitness', '#Training', '#Motivation'] },
+            beauty: { de: ['#Beauty', '#Pflege', '#Skincare', '#Sch\u00f6nheit'], en: ['#Beauty', '#Skincare', '#SelfCare', '#Glow'] },
+            education: { de: ['#Bildung', '#Lernen', '#Wissen', '#Weiterbildung'], en: ['#Education', '#Learning', '#Knowledge', '#Growth'] },
+            software: { de: ['#Software', '#App', '#Digital', '#SaaS', '#Produktivit\u00e4t'], en: ['#Software', '#App', '#Digital', '#SaaS', '#Productivity'] },
+            other: { de: ['#Neu', '#MustHave', '#Empfehlung'], en: ['#New', '#MustHave', '#Recommended'] }
+        };
+
+        var ct = catTags[category];
+        if (ct) {
+            tags = tags.concat(ct[lang] || ct.en);
+        }
+
+        features.slice(0, 2).forEach(function (f) {
+            tags.push('#' + f.replace(/\s+/g, '').replace(/[^a-zA-Z0-9\u00c0-\u017e]/g, ''));
+        });
+
+        return tags.filter(function (t, i, arr) { return arr.indexOf(t) === i; });
+    }
+
+    // --- Generate Slogans ---
+    function generateSlogans(p) {
+        var slogans = [];
+
+        var sloganTemplatesDe = [
+            p.name + ' \u2013 Weil du das Beste verdienst.',
+            p.name + '. Einfach. Besser. Anders.',
+            'Die Zukunft hei\u00dft ' + p.name + '.',
+            p.name + ' \u2013 Dein n\u00e4chster Schritt nach vorn.',
+            'Erlebe den Unterschied mit ' + p.name + '.',
+            p.name + '. Mehr als du erwartest.'
+        ];
+
+        var sloganTemplatesEn = [
+            p.name + ' \u2013 Because you deserve the best.',
+            p.name + '. Simple. Better. Different.',
+            'The future is called ' + p.name + '.',
+            p.name + ' \u2013 Your next step forward.',
+            'Experience the difference with ' + p.name + '.',
+            p.name + '. More than you expect.'
+        ];
+
+        for (var i = 0; i < sloganTemplatesDe.length; i++) {
+            slogans.push({ de: sloganTemplatesDe[i], en: sloganTemplatesEn[i] });
+        }
+
+        return slogans;
+    }
+
+    // --- Generate Landing Page HTML ---
+    function generateLandingPage(p) {
+        var accentColor = '#6C5CE7';
+        return '<!DOCTYPE html>\n' +
+            '<html lang="de">\n<head>\n' +
+            '  <meta charset="UTF-8">\n' +
+            '  <meta name="viewport" content="width=device-width, initial-scale=1.0">\n' +
+            '  <title>' + p.name + ' \u2013 ' + p.desc.substring(0, 60) + '</title>\n' +
+            '  <meta name="description" content="' + p.desc + '">\n' +
+            '  <meta property="og:title" content="' + p.name + '">\n' +
+            '  <meta property="og:description" content="' + p.desc + '">\n' +
+            '  <style>\n' +
+            '    * { margin: 0; padding: 0; box-sizing: border-box; }\n' +
+            '    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #333; }\n' +
+            '    .hero { background: linear-gradient(135deg, ' + accentColor + ', #00CEC9); color: #fff; padding: 80px 20px; text-align: center; }\n' +
+            '    .hero h1 { font-size: 3rem; margin-bottom: 16px; }\n' +
+            '    .hero p { font-size: 1.3rem; opacity: 0.9; max-width: 600px; margin: 0 auto 32px; }\n' +
+            '    .cta-btn { display: inline-block; padding: 16px 40px; background: #fff; color: ' + accentColor + '; font-size: 18px; font-weight: 700; border-radius: 50px; text-decoration: none; transition: transform 0.3s; }\n' +
+            '    .cta-btn:hover { transform: scale(1.05); }\n' +
+            '    .features { padding: 60px 20px; max-width: 800px; margin: 0 auto; }\n' +
+            '    .features h2 { text-align: center; font-size: 2rem; margin-bottom: 40px; }\n' +
+            '    .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; }\n' +
+            '    .feature { text-align: center; padding: 24px; }\n' +
+            '    .feature h3 { color: ' + accentColor + '; margin-bottom: 8px; }\n' +
+            (p.price ? '    .pricing { text-align: center; padding: 60px 20px; background: #f8f9fa; }\n' +
+                '    .pricing h2 { font-size: 2rem; margin-bottom: 16px; }\n' +
+                '    .price-tag { font-size: 3rem; font-weight: 900; color: ' + accentColor + '; }\n' : '') +
+            '    .footer { text-align: center; padding: 30px; color: #888; font-size: 14px; }\n' +
+            '  </style>\n' +
+            '</head>\n<body>\n' +
+            '  <section class="hero">\n' +
+            '    <h1>' + p.name + '</h1>\n' +
+            '    <p>' + p.desc + '</p>\n' +
+            (p.url ? '    <a href="' + escapeHtml(p.url) + '" class="cta-btn">Jetzt entdecken / Discover Now</a>\n' : '    <a href="#features" class="cta-btn">Mehr erfahren / Learn More</a>\n') +
+            '  </section>\n' +
+            (p.features.length ? '  <section class="features" id="features">\n' +
+                '    <h2>Features</h2>\n' +
+                '    <div class="feature-grid">\n' +
+                p.features.map(function (f) { return '      <div class="feature">\n        <h3>' + escapeHtml(f) + '</h3>\n      </div>'; }).join('\n') + '\n' +
+                '    </div>\n' +
+                '  </section>\n' : '') +
+            (p.price ? '  <section class="pricing">\n' +
+                '    <h2>Preis / Price</h2>\n' +
+                '    <div class="price-tag">' + escapeHtml(p.price) + '</div>\n' +
+                '  </section>\n' : '') +
+            '  <footer class="footer">\n' +
+            '    &copy; ' + new Date().getFullYear() + ' ' + escapeHtml(p.name) + '. All rights reserved.\n' +
+            '  </footer>\n' +
+            '</body>\n</html>';
+    }
+
+    function escapeHtml(str) {
+        var div = document.createElement('div');
+        div.appendChild(document.createTextNode(str));
+        return div.innerHTML;
+    }
+
+    // --- Main Generate Function ---
+    function generateAll() {
+        var p = getProductData();
+        if (!p) return;
+
+        var btn = document.getElementById('generateBtn');
+        btn.classList.add('loading');
+
+        setTimeout(function () {
+            var style = templates[selectedStyle] || templates.professional;
+            var platforms = ['twitter', 'instagram', 'facebook', 'linkedin', 'tiktok'];
+
+            platforms.forEach(function (platform) {
+                var tpl = style[platform];
+                if (tpl) {
+                    setText(platform + '-de', tpl.de(p));
+                    setText(platform + '-en', tpl.en(p));
+                }
+            });
+
+            // Email
+            setText('email-de', emailTemplates.de(p));
+            setText('email-en', emailTemplates.en(p));
+
+            // SEO
+            setText('seo-de', seoTemplates.de(p));
+            setText('seo-en', seoTemplates.en(p));
+
+            // Press Release
+            setText('press-de', pressTemplates.de(p));
+            setText('press-en', pressTemplates.en(p));
+
+            // Slogans
+            var slogans = generateSlogans(p);
+            var sloganGrid = document.getElementById('sloganGrid');
+            sloganGrid.innerHTML = '';
+            slogans.forEach(function (s) {
+                var div = document.createElement('div');
+                div.className = 'slogan-item';
+                div.innerHTML = '<span class="slogan-lang">DE</span>' + escapeHtml(s.de);
+                div.onclick = function () { copyToClipboard(s.de); };
+                sloganGrid.appendChild(div);
+
+                var divEn = document.createElement('div');
+                divEn.className = 'slogan-item';
+                divEn.innerHTML = '<span class="slogan-lang">EN</span>' + escapeHtml(s.en);
+                divEn.onclick = function () { copyToClipboard(s.en); };
+                sloganGrid.appendChild(divEn);
+            });
+
+            // Hashtags
+            var hashtagCloud = document.getElementById('hashtagCloud');
+            hashtagCloud.innerHTML = '';
+            var allTags = p.hashtags.concat(p.hashtagsEn).filter(function (t, i, arr) { return arr.indexOf(t) === i; });
+            allTags.forEach(function (tag) {
+                var span = document.createElement('span');
+                span.className = 'hashtag';
+                span.textContent = tag;
+                span.onclick = function () { copyToClipboard(tag); };
+                hashtagCloud.appendChild(span);
+            });
+
+            // Landing Page
+            var landingHtml = generateLandingPage(p);
+            document.getElementById('landing-code').textContent = landingHtml;
+            var iframe = document.createElement('iframe');
+            iframe.srcdoc = landingHtml;
+            var previewDiv = document.getElementById('landing-preview');
+            previewDiv.innerHTML = '';
+            previewDiv.appendChild(iframe);
+
+            // Store data for export
+            generatedData = {
+                product: p,
+                style: selectedStyle,
+                social: {},
+                email: { de: emailTemplates.de(p), en: emailTemplates.en(p) },
+                seo: { de: seoTemplates.de(p), en: seoTemplates.en(p) },
+                press: { de: pressTemplates.de(p), en: pressTemplates.en(p) },
+                slogans: slogans,
+                hashtags: allTags,
+                landingPage: landingHtml
+            };
+
+            platforms.forEach(function (platform) {
+                var tpl = style[platform];
+                if (tpl) {
+                    generatedData.social[platform] = { de: tpl.de(p), en: tpl.en(p) };
+                }
+            });
+
+            // Show results
+            document.getElementById('results').classList.remove('hidden');
+            document.getElementById('results').scrollIntoView({ behavior: 'smooth', block: 'start' });
+
+            btn.classList.remove('loading');
+            showToast(currentLang === 'de' ? 'Alle Werbematerialien wurden generiert!' : 'All promotion materials generated!');
+        }, 600);
+    }
+
+    window.generateAll = generateAll;
+
+    // --- Helper Functions ---
+    function setText(id, text) {
+        var el = document.getElementById(id);
+        if (el) el.textContent = text;
+    }
+
+    function copyToClipboard(text) {
+        navigator.clipboard.writeText(text).then(function () {
+            showToast(currentLang === 'de' ? 'Kopiert!' : 'Copied!');
+        }).catch(function () {
+            fallbackCopy(text);
+        });
+    }
+
+    function fallbackCopy(text) {
+        var textarea = document.createElement('textarea');
+        textarea.value = text;
+        textarea.style.position = 'fixed';
+        textarea.style.opacity = '0';
+        document.body.appendChild(textarea);
+        textarea.select();
+        document.execCommand('copy');
+        document.body.removeChild(textarea);
+        showToast(currentLang === 'de' ? 'Kopiert!' : 'Copied!');
+    }
+
+    function copyText(id) {
+        var el = document.getElementById(id);
+        if (el) copyToClipboard(el.textContent);
+    }
+
+    window.copyText = copyText;
+
+    function copyAll(section) {
+        if (!generatedData) return;
+        var text = '';
+        if (section === 'social') {
+            Object.keys(generatedData.social).forEach(function (platform) {
+                text += '=== ' + platform.toUpperCase() + ' (DE) ===\n' + generatedData.social[platform].de + '\n\n';
+                text += '=== ' + platform.toUpperCase() + ' (EN) ===\n' + generatedData.social[platform].en + '\n\n';
+            });
+        } else if (section === 'email') {
+            text = '=== EMAIL (DE) ===\n' + generatedData.email.de + '\n\n=== EMAIL (EN) ===\n' + generatedData.email.en;
+        } else if (section === 'seo') {
+            text = '=== SEO (DE) ===\n' + generatedData.seo.de + '\n\n=== SEO (EN) ===\n' + generatedData.seo.en;
+        } else if (section === 'press') {
+            text = '=== PRESS (DE) ===\n' + generatedData.press.de + '\n\n=== PRESS (EN) ===\n' + generatedData.press.en;
+        }
+        copyToClipboard(text);
+    }
+
+    window.copyAll = copyAll;
+
+    function copyHashtags() {
+        if (generatedData) copyToClipboard(generatedData.hashtags.join(' '));
+    }
+
+    window.copyHashtags = copyHashtags;
+
+    // --- Tabs ---
+    function switchTab(btn, tab) {
+        var parent = btn.closest('.result-card');
+        parent.querySelectorAll('.tab-btn').forEach(function (b) { b.classList.remove('active'); });
+        btn.classList.add('active');
+        parent.querySelectorAll('.tab-content').forEach(function (c) { c.classList.add('hidden'); });
+        document.getElementById('tab-' + tab).classList.remove('hidden');
+    }
+
+    window.switchTab = switchTab;
+
+    // --- Landing Page Preview Toggle ---
+    function togglePreview(mode) {
+        var preview = document.getElementById('landing-preview');
+        var code = document.getElementById('landing-code');
+        var buttons = document.querySelectorAll('.preview-btn');
+
+        buttons.forEach(function (b) { b.classList.remove('active'); });
+
+        if (mode === 'preview') {
+            preview.classList.remove('hidden');
+            code.classList.add('hidden');
+            buttons[0].classList.add('active');
+        } else {
+            preview.classList.add('hidden');
+            code.classList.remove('hidden');
+            buttons[1].classList.add('active');
+        }
+    }
+
+    window.togglePreview = togglePreview;
+
+    // --- Export Functions ---
+    function exportAs(format) {
+        if (!generatedData) {
+            showToast(currentLang === 'de' ? 'Bitte zuerst generieren!' : 'Please generate first!');
+            return;
+        }
+
+        var content = '';
+        var filename = 'promo-' + generatedData.product.name.replace(/\s+/g, '-').toLowerCase();
+        var mimeType = 'text/plain';
+
+        if (format === 'txt') {
+            content = buildTextExport();
+            filename += '.txt';
+        } else if (format === 'html') {
+            content = generatedData.landingPage;
+            filename += '-landingpage.html';
+            mimeType = 'text/html';
+        } else if (format === 'json') {
+            content = JSON.stringify(generatedData, null, 2);
+            filename += '.json';
+            mimeType = 'application/json';
+        } else if (format === 'csv') {
+            content = buildCsvExport();
+            filename += '.csv';
+            mimeType = 'text/csv';
+        }
+
+        downloadFile(content, filename, mimeType);
+        showToast((currentLang === 'de' ? 'Export als ' : 'Exported as ') + format.toUpperCase() + '!');
+    }
+
+    window.exportAs = exportAs;
+
+    function buildTextExport() {
+        var d = generatedData;
+        var lines = [];
+        lines.push('========================================');
+        lines.push('PROMOMASTER - WERBEMATERIALIEN / PROMOTION MATERIALS');
+        lines.push('Produkt / Product: ' + d.product.name);
+        lines.push('Erstellt am / Generated: ' + new Date().toLocaleString());
+        lines.push('========================================\n');
+
+        Object.keys(d.social).forEach(function (platform) {
+            lines.push('\n--- ' + platform.toUpperCase() + ' (DE) ---');
+            lines.push(d.social[platform].de);
+            lines.push('\n--- ' + platform.toUpperCase() + ' (EN) ---');
+            lines.push(d.social[platform].en);
+        });
+
+        lines.push('\n\n--- E-MAIL MARKETING (DE) ---');
+        lines.push(d.email.de);
+        lines.push('\n--- E-MAIL MARKETING (EN) ---');
+        lines.push(d.email.en);
+
+        lines.push('\n\n--- SEO (DE) ---');
+        lines.push(d.seo.de);
+        lines.push('\n--- SEO (EN) ---');
+        lines.push(d.seo.en);
+
+        lines.push('\n\n--- PRESSEMITTEILUNG / PRESS RELEASE (DE) ---');
+        lines.push(d.press.de);
+        lines.push('\n--- PRESS RELEASE (EN) ---');
+        lines.push(d.press.en);
+
+        lines.push('\n\n--- SLOGANS ---');
+        d.slogans.forEach(function (s) {
+            lines.push('DE: ' + s.de);
+            lines.push('EN: ' + s.en);
+        });
+
+        lines.push('\n\n--- HASHTAGS ---');
+        lines.push(d.hashtags.join(' '));
+
+        return lines.join('\n');
+    }
+
+    function buildCsvExport() {
+        var d = generatedData;
+        var rows = [['Platform', 'Language', 'Content']];
+
+        Object.keys(d.social).forEach(function (platform) {
+            rows.push([platform, 'DE', '"' + d.social[platform].de.replace(/"/g, '""') + '"']);
+            rows.push([platform, 'EN', '"' + d.social[platform].en.replace(/"/g, '""') + '"']);
+        });
+
+        rows.push(['email', 'DE', '"' + d.email.de.replace(/"/g, '""') + '"']);
+        rows.push(['email', 'EN', '"' + d.email.en.replace(/"/g, '""') + '"']);
+        rows.push(['seo', 'DE', '"' + d.seo.de.replace(/"/g, '""') + '"']);
+        rows.push(['seo', 'EN', '"' + d.seo.en.replace(/"/g, '""') + '"']);
+        rows.push(['press', 'DE', '"' + d.press.de.replace(/"/g, '""') + '"']);
+        rows.push(['press', 'EN', '"' + d.press.en.replace(/"/g, '""') + '"']);
+
+        d.slogans.forEach(function (s, i) {
+            rows.push(['slogan_' + (i + 1), 'DE', '"' + s.de.replace(/"/g, '""') + '"']);
+            rows.push(['slogan_' + (i + 1), 'EN', '"' + s.en.replace(/"/g, '""') + '"']);
+        });
+
+        return rows.map(function (r) { return r.join(','); }).join('\n');
+    }
+
+    function downloadFile(content, filename, mimeType) {
+        var blob = new Blob([content], { type: mimeType + ';charset=utf-8' });
+        var url = URL.createObjectURL(blob);
+        var a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        document.body.appendChild(a);
+        a.click();
+        document.body.removeChild(a);
+        URL.revokeObjectURL(url);
+    }
+
+    // --- Toast ---
+    function showToast(msg) {
+        var toast = document.getElementById('toast');
+        toast.textContent = msg;
+        toast.classList.remove('hidden');
+        toast.classList.add('show');
+        setTimeout(function () {
+            toast.classList.remove('show');
+            setTimeout(function () { toast.classList.add('hidden'); }, 400);
+        }, 2500);
+    }
+
+    // --- Initialize ---
+    setLanguage('de');
+})();
@@ -0,0 +1,724 @@
+/* === PromoMaster - Product Promotion Tool === */
+
+:root {
+    --primary: #6C5CE7;
+    --primary-dark: #5A4BD1;
+    --primary-light: #A29BFE;
+    --accent: #00CEC9;
+    --accent-dark: #00B5B0;
+    --bg: #0F0F1A;
+    --bg-card: #1A1A2E;
+    --bg-card-hover: #222240;
+    --text: #EAEAEA;
+    --text-muted: #8B8BA3;
+    --border: #2D2D4A;
+    --success: #00E676;
+    --warning: #FFD93D;
+    --danger: #FF6B6B;
+    --radius: 16px;
+    --radius-sm: 10px;
+    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
+    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
+    --glow: 0 0 30px rgba(108, 92, 231, 0.3);
+}
+
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+body {
+    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
+    background: var(--bg);
+    color: var(--text);
+    line-height: 1.6;
+    min-height: 100vh;
+    overflow-x: hidden;
+}
+
+.container {
+    max-width: 960px;
+    margin: 0 auto;
+    padding: 0 20px;
+}
+
+/* === Language Toggle === */
+.lang-toggle {
+    position: fixed;
+    top: 20px;
+    right: 20px;
+    z-index: 100;
+    display: flex;
+    gap: 4px;
+    background: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: 30px;
+    padding: 4px;
+    box-shadow: var(--shadow);
+}
+
+.lang-btn {
+    padding: 8px 16px;
+    border: none;
+    border-radius: 26px;
+    background: transparent;
+    color: var(--text-muted);
+    font-weight: 600;
+    font-size: 14px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+}
+
+.lang-btn.active {
+    background: var(--primary);
+    color: #fff;
+}
+
+.lang-btn:hover:not(.active) {
+    color: var(--text);
+    background: var(--border);
+}
+
+/* === Hero === */
+.hero {
+    position: relative;
+    padding: 80px 0 50px;
+    text-align: center;
+    overflow: hidden;
+}
+
+.hero-bg {
+    position: absolute;
+    top: -50%;
+    left: -50%;
+    width: 200%;
+    height: 200%;
+    background: radial-gradient(ellipse at 50% 50%, rgba(108, 92, 231, 0.15) 0%, transparent 60%),
+                radial-gradient(ellipse at 80% 20%, rgba(0, 206, 201, 0.1) 0%, transparent 40%);
+    animation: heroPulse 8s ease-in-out infinite;
+}
+
+@keyframes heroPulse {
+    0%, 100% { transform: scale(1); opacity: 0.8; }
+    50% { transform: scale(1.05); opacity: 1; }
+}
+
+.hero-title {
+    font-size: clamp(2.5rem, 6vw, 4rem);
+    font-weight: 900;
+    letter-spacing: -2px;
+    position: relative;
+    background: linear-gradient(135deg, var(--primary-light), var(--accent));
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+}
+
+.hero-icon {
+    font-size: 0.8em;
+    -webkit-text-fill-color: initial;
+}
+
+.hero-subtitle {
+    font-size: clamp(1rem, 2.5vw, 1.3rem);
+    color: var(--text-muted);
+    margin-top: 12px;
+    position: relative;
+    font-weight: 300;
+}
+
+/* === Cards === */
+.card {
+    background: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    padding: 32px;
+    margin-bottom: 24px;
+    box-shadow: var(--shadow);
+    transition: border-color 0.3s ease;
+}
+
+.card:hover {
+    border-color: var(--primary);
+}
+
+/* === Step Header === */
+.step-header {
+    display: flex;
+    align-items: center;
+    gap: 16px;
+    margin-bottom: 28px;
+}
+
+.step-number {
+    width: 44px;
+    height: 44px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: linear-gradient(135deg, var(--primary), var(--accent));
+    border-radius: 12px;
+    font-weight: 800;
+    font-size: 20px;
+    color: #fff;
+    flex-shrink: 0;
+}
+
+.step-header h2 {
+    font-size: 1.4rem;
+    font-weight: 700;
+}
+
+/* === Form === */
+.form-grid {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 20px;
+}
+
+.form-group {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+}
+
+.form-group.full-width {
+    grid-column: 1 / -1;
+}
+
+.form-group label {
+    font-size: 14px;
+    font-weight: 600;
+    color: var(--text-muted);
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+}
+
+.form-group input,
+.form-group textarea,
+.form-group select {
+    padding: 14px 18px;
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    color: var(--text);
+    font-family: inherit;
+    font-size: 15px;
+    transition: all 0.3s ease;
+    outline: none;
+}
+
+.form-group input:focus,
+.form-group textarea:focus,
+.form-group select:focus {
+    border-color: var(--primary);
+    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
+}
+
+.form-group select {
+    cursor: pointer;
+    appearance: none;
+    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238B8BA3' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
+    background-repeat: no-repeat;
+    background-position: right 16px center;
+    padding-right: 40px;
+}
+
+.form-group textarea {
+    resize: vertical;
+    min-height: 80px;
+}
+
+.char-count {
+    font-size: 12px;
+    color: var(--text-muted);
+    text-align: right;
+}
+
+/* === Style Options === */
+.style-grid {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+    gap: 14px;
+}
+
+.style-option {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 10px;
+    padding: 20px 14px;
+    background: var(--bg);
+    border: 2px solid var(--border);
+    border-radius: var(--radius-sm);
+    cursor: pointer;
+    transition: all 0.3s ease;
+    text-align: center;
+}
+
+.style-option:hover {
+    border-color: var(--primary-light);
+    background: var(--bg-card-hover);
+}
+
+.style-option.selected {
+    border-color: var(--primary);
+    background: rgba(108, 92, 231, 0.1);
+    box-shadow: var(--glow);
+}
+
+.style-icon {
+    font-size: 32px;
+}
+
+.style-label {
+    font-size: 13px;
+    font-weight: 600;
+    color: var(--text-muted);
+}
+
+.style-option.selected .style-label {
+    color: var(--text);
+}
+
+/* === Generate Button === */
+.generate-section {
+    text-align: center;
+    margin: 40px 0;
+}
+
+.btn-generate {
+    padding: 18px 48px;
+    font-size: 18px;
+    font-weight: 700;
+    font-family: inherit;
+    color: #fff;
+    background: linear-gradient(135deg, var(--primary), var(--accent));
+    border: none;
+    border-radius: 50px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+    box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
+    display: inline-flex;
+    align-items: center;
+    gap: 10px;
+}
+
+.btn-generate:hover {
+    transform: translateY(-3px);
+    box-shadow: 0 12px 40px rgba(108, 92, 231, 0.5);
+}
+
+.btn-generate:active {
+    transform: translateY(0);
+}
+
+.btn-generate.loading {
+    pointer-events: none;
+    opacity: 0.8;
+}
+
+.btn-generate.loading .btn-icon {
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    from { transform: rotate(0deg); }
+    to { transform: rotate(360deg); }
+}
+
+.btn-icon {
+    font-size: 22px;
+    display: inline-block;
+}
+
+/* === Results === */
+.results-section {
+    animation: fadeInUp 0.6s ease;
+}
+
+@keyframes fadeInUp {
+    from { opacity: 0; transform: translateY(30px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+.result-card {
+    position: relative;
+}
+
+.result-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    margin-bottom: 20px;
+    flex-wrap: wrap;
+    gap: 10px;
+}
+
+.result-header h3 {
+    font-size: 1.2rem;
+    font-weight: 700;
+}
+
+.btn-copy-all {
+    padding: 8px 18px;
+    font-size: 13px;
+    font-weight: 600;
+    font-family: inherit;
+    color: var(--primary-light);
+    background: rgba(108, 92, 231, 0.1);
+    border: 1px solid var(--primary);
+    border-radius: 20px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+}
+
+.btn-copy-all:hover {
+    background: var(--primary);
+    color: #fff;
+}
+
+/* === Tabs === */
+.result-tabs {
+    display: flex;
+    gap: 6px;
+    margin-bottom: 20px;
+    overflow-x: auto;
+    padding-bottom: 4px;
+}
+
+.tab-btn {
+    padding: 10px 20px;
+    font-size: 13px;
+    font-weight: 600;
+    font-family: inherit;
+    color: var(--text-muted);
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: 8px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+    white-space: nowrap;
+}
+
+.tab-btn:hover {
+    color: var(--text);
+    border-color: var(--primary-light);
+}
+
+.tab-btn.active {
+    color: #fff;
+    background: var(--primary);
+    border-color: var(--primary);
+}
+
+.tab-content {
+    transition: all 0.3s ease;
+}
+
+/* === Language Results === */
+.lang-results {
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
+
+.lang-result {
+    position: relative;
+    padding: 20px;
+    padding-left: 56px;
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+}
+
+.lang-badge {
+    position: absolute;
+    top: 20px;
+    left: 16px;
+    padding: 3px 10px;
+    font-size: 11px;
+    font-weight: 800;
+    color: #fff;
+    background: linear-gradient(135deg, #E74C3C, #C0392B);
+    border-radius: 6px;
+    letter-spacing: 1px;
+}
+
+.lang-badge.en {
+    background: linear-gradient(135deg, #2980B9, #2471A3);
+}
+
+.result-text {
+    font-size: 14px;
+    line-height: 1.8;
+    white-space: pre-wrap;
+    color: var(--text);
+    padding-right: 40px;
+}
+
+.btn-copy {
+    position: absolute;
+    top: 16px;
+    right: 16px;
+    width: 36px;
+    height: 36px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: 8px;
+    cursor: pointer;
+    font-size: 16px;
+    transition: all 0.3s ease;
+    color: var(--text);
+}
+
+.btn-copy:hover {
+    background: var(--primary);
+    border-color: var(--primary);
+}
+
+/* === Slogans === */
+.slogan-grid {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 12px;
+}
+
+.slogan-item {
+    padding: 18px;
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    text-align: center;
+    font-weight: 600;
+    font-size: 15px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+    position: relative;
+}
+
+.slogan-item:hover {
+    border-color: var(--accent);
+    background: var(--bg-card-hover);
+}
+
+.slogan-item .slogan-lang {
+    font-size: 10px;
+    font-weight: 800;
+    color: var(--text-muted);
+    letter-spacing: 1px;
+    display: block;
+    margin-bottom: 6px;
+}
+
+/* === Hashtags === */
+.hashtag-cloud {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+}
+
+.hashtag {
+    padding: 8px 16px;
+    background: rgba(108, 92, 231, 0.1);
+    border: 1px solid var(--primary);
+    border-radius: 20px;
+    font-size: 14px;
+    font-weight: 600;
+    color: var(--primary-light);
+    cursor: pointer;
+    transition: all 0.3s ease;
+}
+
+.hashtag:hover {
+    background: var(--primary);
+    color: #fff;
+}
+
+/* === Landing Page Preview === */
+.landing-preview-container {
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    overflow: hidden;
+}
+
+.preview-toggle {
+    display: flex;
+    background: var(--bg);
+    border-bottom: 1px solid var(--border);
+}
+
+.preview-btn {
+    flex: 1;
+    padding: 12px;
+    font-size: 13px;
+    font-weight: 600;
+    font-family: inherit;
+    color: var(--text-muted);
+    background: transparent;
+    border: none;
+    cursor: pointer;
+    transition: all 0.3s ease;
+}
+
+.preview-btn.active {
+    color: var(--text);
+    background: var(--bg-card);
+    border-bottom: 2px solid var(--primary);
+}
+
+.landing-preview {
+    min-height: 300px;
+    background: #fff;
+}
+
+.landing-preview iframe {
+    width: 100%;
+    height: 500px;
+    border: none;
+}
+
+.landing-code {
+    padding: 20px;
+    background: var(--bg);
+    color: var(--accent);
+    font-size: 13px;
+    line-height: 1.6;
+    overflow-x: auto;
+    max-height: 400px;
+    white-space: pre;
+    margin: 0;
+    cursor: pointer;
+}
+
+/* === Export === */
+.export-grid {
+    display: grid;
+    grid-template-columns: repeat(4, 1fr);
+    gap: 14px;
+}
+
+.btn-export {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 10px;
+    padding: 24px 16px;
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    color: var(--text);
+    font-family: inherit;
+    font-size: 14px;
+    font-weight: 600;
+    cursor: pointer;
+    transition: all 0.3s ease;
+}
+
+.btn-export:hover {
+    border-color: var(--accent);
+    background: var(--bg-card-hover);
+    transform: translateY(-2px);
+}
+
+.export-icon {
+    font-size: 28px;
+}
+
+/* === Toast === */
+.toast {
+    position: fixed;
+    bottom: 30px;
+    left: 50%;
+    transform: translateX(-50%) translateY(20px);
+    padding: 14px 28px;
+    background: var(--success);
+    color: #000;
+    font-weight: 600;
+    font-size: 14px;
+    border-radius: 30px;
+    z-index: 1000;
+    opacity: 0;
+    transition: all 0.4s ease;
+    box-shadow: 0 8px 30px rgba(0, 230, 118, 0.3);
+}
+
+.toast.show {
+    opacity: 1;
+    transform: translateX(-50%) translateY(0);
+}
+
+/* === Footer === */
+.footer {
+    text-align: center;
+    padding: 40px 20px;
+    color: var(--text-muted);
+    font-size: 14px;
+    border-top: 1px solid var(--border);
+    margin-top: 60px;
+}
+
+/* === Hidden === */
+.hidden {
+    display: none !important;
+}
+
+/* === Responsive === */
+@media (max-width: 768px) {
+    .form-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .style-grid {
+        grid-template-columns: repeat(2, 1fr);
+    }
+
+    .slogan-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .export-grid {
+        grid-template-columns: repeat(2, 1fr);
+    }
+
+    .card {
+        padding: 24px 18px;
+    }
+
+    .hero {
+        padding: 60px 0 30px;
+    }
+
+    .lang-toggle {
+        top: 12px;
+        right: 12px;
+    }
+
+    .result-tabs {
+        gap: 4px;
+    }
+
+    .tab-btn {
+        padding: 8px 14px;
+        font-size: 12px;
+    }
+}
+
+@media (max-width: 480px) {
+    .style-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .export-grid {
+        grid-template-columns: 1fr 1fr;
+    }
+
+    .btn-generate {
+        padding: 16px 32px;
+        font-size: 16px;
+    }
+}
@@ -0,0 +1,120 @@
+//
+//  AppDelegate.swift
+//  PsytranceVisualizer
+//
+//  Application delegate handling app lifecycle
+//
+
+import AppKit
+import AVFoundation
+
+/// Application delegate
+final class AppDelegate: NSObject, NSApplicationDelegate {
+    // MARK: - Properties
+
+    private var mainWindowController: MainWindowController?
+
+    // MARK: - App Lifecycle
+
+    func applicationDidFinishLaunching(_ notification: Notification) {
+        // Request microphone permission
+        requestMicrophonePermission()
+
+        // Create and show main window
+        mainWindowController = MainWindowController()
+        mainWindowController?.showWindow(nil)
+        mainWindowController?.window?.makeKeyAndOrderFront(nil)
+
+        // Activate the application
+        NSApp.activate(ignoringOtherApps: true)
+
+        print("[AppDelegate] Application launched")
+    }
+
+    func applicationWillTerminate(_ notification: Notification) {
+        // Save settings
+        SettingsManager.shared.saveNow()
+
+        print("[AppDelegate] Application terminating")
+    }
+
+    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+        return true
+    }
+
+    func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
+        return true
+    }
+
+    // MARK: - Permissions
+
+    private func requestMicrophonePermission() {
+        switch AVCaptureDevice.authorizationStatus(for: .audio) {
+        case .authorized:
+            print("[AppDelegate] Microphone access already authorized")
+
+        case .notDetermined:
+            AVCaptureDevice.requestAccess(for: .audio) { granted in
+                if granted {
+                    print("[AppDelegate] Microphone access granted")
+                } else {
+                    print("[AppDelegate] Microphone access denied")
+                    self.showMicrophonePermissionAlert()
+                }
+            }
+
+        case .denied, .restricted:
+            print("[AppDelegate] Microphone access denied or restricted")
+            showMicrophonePermissionAlert()
+
+        @unknown default:
+            break
+        }
+    }
+
+    private func showMicrophonePermissionAlert() {
+        DispatchQueue.main.async {
+            let alert = NSAlert()
+            alert.messageText = "Microphone Access Required"
+            alert.informativeText = "Psytrance Visualizer needs access to your audio input to visualize music. Please enable microphone access in System Preferences > Security & Privacy > Privacy > Microphone."
+            alert.alertStyle = .warning
+            alert.addButton(withTitle: "Open System Preferences")
+            alert.addButton(withTitle: "Cancel")
+
+            if alert.runModal() == .alertFirstButtonReturn {
+                if let url = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone") {
+                    NSWorkspace.shared.open(url)
+                }
+            }
+        }
+    }
+
+    // MARK: - Menu Actions
+
+    @IBAction func showAbout(_ sender: Any) {
+        let alert = NSAlert()
+        alert.messageText = "Psytrance Visualizer"
+        alert.informativeText = """
+        An audio-reactive visualizer for psytrance music.
+
+        8 Visualization Modes:
+        1 - FFT Classic
+        2 - Mel Spectrogram
+        3 - Sub-Bass
+        4 - Sidechain Pump
+        5 - Harmonic/Noise
+        6 - Mandelbrot
+        7 - Tunnel Warp
+        8 - DMT Geometry
+
+        Keyboard Shortcuts:
+        1-8: Switch visualization mode
+        F: Toggle fullscreen
+        ESC: Exit fullscreen
+
+        Tip: Use a virtual audio device like BlackHole to route system audio.
+        """
+        alert.alertStyle = .informational
+        alert.runModal()
+    }
+}
@@ -0,0 +1,133 @@
+//
+//  PsytranceVisualizerApp.swift
+//  PsytranceVisualizer
+//
+//  Main application entry point
+//
+
+import AppKit
+
+// MARK: - Main Entry Point
+
+/// Application entry point
+@main
+struct PsytranceVisualizerApp {
+    static func main() {
+        // Create the application
+        let app = NSApplication.shared
+
+        // Set up the delegate
+        let delegate = AppDelegate()
+        app.delegate = delegate
+
+        // Set activation policy
+        app.setActivationPolicy(.regular)
+
+        // Create the main menu
+        setupMainMenu()
+
+        // Run the application
+        app.run()
+    }
+
+    /// Sets up the application's main menu
+    private static func setupMainMenu() {
+        let mainMenu = NSMenu()
+
+        // Application menu
+        let appMenuItem = NSMenuItem()
+        mainMenu.addItem(appMenuItem)
+
+        let appMenu = NSMenu()
+        appMenuItem.submenu = appMenu
+
+        appMenu.addItem(withTitle: "About Psytrance Visualizer",
+                       action: #selector(AppDelegate.showAbout(_:)),
+                       keyEquivalent: "")
+
+        appMenu.addItem(NSMenuItem.separator())
+
+        appMenu.addItem(withTitle: "Hide Psytrance Visualizer",
+                       action: #selector(NSApplication.hide(_:)),
+                       keyEquivalent: "h")
+
+        let hideOthersItem = appMenu.addItem(withTitle: "Hide Others",
+                                             action: #selector(NSApplication.hideOtherApplications(_:)),
+                                             keyEquivalent: "h")
+        hideOthersItem.keyEquivalentModifierMask = [.command, .option]
+
+        appMenu.addItem(withTitle: "Show All",
+                       action: #selector(NSApplication.unhideAllApplications(_:)),
+                       keyEquivalent: "")
+
+        appMenu.addItem(NSMenuItem.separator())
+
+        appMenu.addItem(withTitle: "Quit Psytrance Visualizer",
+                       action: #selector(NSApplication.terminate(_:)),
+                       keyEquivalent: "q")
+
+        // View menu
+        let viewMenuItem = NSMenuItem()
+        mainMenu.addItem(viewMenuItem)
+
+        let viewMenu = NSMenu(title: "View")
+        viewMenuItem.submenu = viewMenu
+
+        viewMenu.addItem(withTitle: "Toggle Fullscreen",
+                        action: #selector(NSWindow.toggleFullScreen(_:)),
+                        keyEquivalent: "f")
+
+        viewMenu.addItem(NSMenuItem.separator())
+
+        // Visualization mode submenu
+        let modesMenuItem = NSMenuItem(title: "Visualization Mode", action: nil, keyEquivalent: "")
+        let modesMenu = NSMenu()
+
+        for mode in VisualizationMode.allCases {
+            let item = NSMenuItem(title: mode.displayName,
+                                 action: nil,
+                                 keyEquivalent: mode.shortcut)
+            item.tag = mode.rawValue
+            modesMenu.addItem(item)
+        }
+
+        modesMenuItem.submenu = modesMenu
+        viewMenu.addItem(modesMenuItem)
+
+        // Window menu
+        let windowMenuItem = NSMenuItem()
+        mainMenu.addItem(windowMenuItem)
+
+        let windowMenu = NSMenu(title: "Window")
+        windowMenuItem.submenu = windowMenu
+
+        windowMenu.addItem(withTitle: "Minimize",
+                          action: #selector(NSWindow.miniaturize(_:)),
+                          keyEquivalent: "m")
+
+        windowMenu.addItem(withTitle: "Zoom",
+                          action: #selector(NSWindow.zoom(_:)),
+                          keyEquivalent: "")
+
+        windowMenu.addItem(NSMenuItem.separator())
+
+        windowMenu.addItem(withTitle: "Bring All to Front",
+                          action: #selector(NSApplication.arrangeInFront(_:)),
+                          keyEquivalent: "")
+
+        // Help menu
+        let helpMenuItem = NSMenuItem()
+        mainMenu.addItem(helpMenuItem)
+
+        let helpMenu = NSMenu(title: "Help")
+        helpMenuItem.submenu = helpMenu
+
+        helpMenu.addItem(withTitle: "Psytrance Visualizer Help",
+                        action: #selector(AppDelegate.showAbout(_:)),
+                        keyEquivalent: "?")
+
+        NSApp.mainMenu = mainMenu
+        NSApp.windowsMenu = windowMenu
+        NSApp.helpMenu = helpMenu
+    }
+}
@@ -0,0 +1,357 @@
+//
+//  AudioInputManager.swift
+//  PsytranceVisualizer
+//
+//  Manages audio input devices and captures audio buffers
+//
+
+import AVFoundation
+import CoreAudio
+import Combine
+
+/// Represents an audio input device
+struct AudioDevice: Identifiable, Hashable {
+    let id: AudioDeviceID
+    let uid: String
+    let name: String
+    let manufacturer: String
+    let isInput: Bool
+
+    func hash(into hasher: inout Hasher) {
+        hasher.combine(uid)
+    }
+
+    static func == (lhs: AudioDevice, rhs: AudioDevice) -> Bool {
+        lhs.uid == rhs.uid
+    }
+}
+
+/// Manages audio input capture using AVAudioEngine
+final class AudioInputManager: ObservableObject {
+    // MARK: - Published Properties
+
+    @Published private(set) var availableDevices: [AudioDevice] = []
+    @Published private(set) var selectedDevice: AudioDevice?
+    @Published private(set) var isRunning = false
+    @Published private(set) var currentBufferSize: Int = 1024
+
+    // MARK: - Audio Properties
+
+    private var audioEngine: AVAudioEngine?
+    private var inputNode: AVAudioInputNode?
+    private let sampleRate: Double = 44100.0
+
+    // MARK: - Callbacks
+
+    var onAudioBuffer: ((AVAudioPCMBuffer) -> Void)?
+
+    // MARK: - Private Properties
+
+    private var deviceListenerBlock: AudioObjectPropertyListenerBlock?
+    private let processingQueue = DispatchQueue(label: "com.psytrance.audio", qos: .userInteractive)
+
+    // MARK: - Initialization
+
+    init() {
+        refreshDeviceList()
+        setupDeviceChangeListener()
+    }
+
+    deinit {
+        stop()
+        removeDeviceChangeListener()
+    }
+
+    // MARK: - Public Methods
+
+    /// Returns list of available audio input devices
+    func getAvailableInputDevices() -> [AudioDevice] {
+        return availableDevices
+    }
+
+    /// Refreshes the list of available audio input devices
+    func refreshDeviceList() {
+        var propertyAddress = AudioObjectPropertyAddress(
+            mSelector: kAudioHardwarePropertyDevices,
+            mScope: kAudioObjectPropertyScopeGlobal,
+            mElement: kAudioObjectPropertyElementMain
+        )
+
+        var dataSize: UInt32 = 0
+        var status = AudioObjectGetPropertyDataSize(
+            AudioObjectID(kAudioObjectSystemObject),
+            &propertyAddress,
+            0,
+            nil,
+            &dataSize
+        )
+
+        guard status == noErr else {
+            print("[AudioInputManager] Failed to get device list size: \(status)")
+            return
+        }
+
+        let deviceCount = Int(dataSize) / MemoryLayout<AudioDeviceID>.size
+        var deviceIDs = [AudioDeviceID](repeating: 0, count: deviceCount)
+
+        status = AudioObjectGetPropertyData(
+            AudioObjectID(kAudioObjectSystemObject),
+            &propertyAddress,
+            0,
+            nil,
+            &dataSize,
+            &deviceIDs
+        )
+
+        guard status == noErr else {
+            print("[AudioInputManager] Failed to get device list: \(status)")
+            return
+        }
+
+        var devices: [AudioDevice] = []
+
+        for deviceID in deviceIDs {
+            if let device = getDeviceInfo(deviceID: deviceID), device.isInput {
+                devices.append(device)
+            }
+        }
+
+        DispatchQueue.main.async {
+            self.availableDevices = devices
+            print("[AudioInputManager] Found \(devices.count) input devices")
+        }
+    }
+
+    /// Selects an audio input device by UID
+    func selectDevice(uid: String) {
+        guard let device = availableDevices.first(where: { $0.uid == uid }) else {
+            print("[AudioInputManager] Device not found: \(uid)")
+            return
+        }
+
+        let wasRunning = isRunning
+        if wasRunning {
+            stop()
+        }
+
+        selectedDevice = device
+        setSystemInputDevice(deviceID: device.id)
+
+        if wasRunning {
+            start()
+        }
+
+        print("[AudioInputManager] Selected device: \(device.name)")
+    }
+
+    /// Sets the buffer size (512 or 1024)
+    func setBufferSize(_ size: Int) {
+        guard [512, 1024].contains(size) else {
+            print("[AudioInputManager] Invalid buffer size: \(size)")
+            return
+        }
+
+        let wasRunning = isRunning
+        if wasRunning {
+            stop()
+        }
+
+        currentBufferSize = size
+
+        if wasRunning {
+            start()
+        }
+
+        print("[AudioInputManager] Buffer size set to: \(size)")
+    }
+
+    /// Starts audio capture
+    func start() {
+        guard !isRunning else { return }
+
+        do {
+            // Create new audio engine
+            audioEngine = AVAudioEngine()
+            guard let engine = audioEngine else { return }
+
+            inputNode = engine.inputNode
+
+            guard let inputNode = inputNode else {
+                print("[AudioInputManager] No input node available")
+                return
+            }
+
+            // Get the input format
+            let inputFormat = inputNode.outputFormat(forBus: 0)
+
+            print("[AudioInputManager] Input format: \(inputFormat)")
+
+            // Install tap on input node
+            let bufferSize = AVAudioFrameCount(currentBufferSize)
+
+            inputNode.installTap(onBus: 0, bufferSize: bufferSize, format: inputFormat) { [weak self] buffer, _ in
+                self?.processingQueue.async {
+                    self?.onAudioBuffer?(buffer)
+                }
+            }
+
+            // Prepare and start the engine
+            engine.prepare()
+            try engine.start()
+
+            DispatchQueue.main.async {
+                self.isRunning = true
+            }
+
+            print("[AudioInputManager] Audio capture started")
+
+        } catch {
+            print("[AudioInputManager] Failed to start audio capture: \(error)")
+        }
+    }
+
+    /// Stops audio capture
+    func stop() {
+        guard isRunning else { return }
+
+        inputNode?.removeTap(onBus: 0)
+        audioEngine?.stop()
+        audioEngine = nil
+        inputNode = nil
+
+        DispatchQueue.main.async {
+            self.isRunning = false
+        }
+
+        print("[AudioInputManager] Audio capture stopped")
+    }
+
+    // MARK: - Private Methods
+
+    /// Gets device info for a specific device ID
+    private func getDeviceInfo(deviceID: AudioDeviceID) -> AudioDevice? {
+        // Check if device has input channels
+        var propertyAddress = AudioObjectPropertyAddress(
+            mSelector: kAudioDevicePropertyStreamConfiguration,
+            mScope: kAudioDevicePropertyScopeInput,
+            mElement: kAudioObjectPropertyElementMain
+        )
+
+        var dataSize: UInt32 = 0
+        var status = AudioObjectGetPropertyDataSize(deviceID, &propertyAddress, 0, nil, &dataSize)
+
+        guard status == noErr, dataSize > 0 else { return nil }
+
+        let bufferListPointer = UnsafeMutablePointer<AudioBufferList>.allocate(capacity: Int(dataSize))
+        defer { bufferListPointer.deallocate() }
+
+        status = AudioObjectGetPropertyData(deviceID, &propertyAddress, 0, nil, &dataSize, bufferListPointer)
+
+        guard status == noErr else { return nil }
+
+        let bufferList = UnsafeMutableAudioBufferListPointer(bufferListPointer)
+        var inputChannelCount: UInt32 = 0
+        for buffer in bufferList {
+            inputChannelCount += buffer.mNumberChannels
+        }
+
+        guard inputChannelCount > 0 else { return nil }
+
+        // Get device UID
+        var uid: CFString = "" as CFString
+        var uidSize = UInt32(MemoryLayout<CFString>.size)
+        propertyAddress.mSelector = kAudioDevicePropertyDeviceUID
+        propertyAddress.mScope = kAudioObjectPropertyScopeGlobal
+
+        status = AudioObjectGetPropertyData(deviceID, &propertyAddress, 0, nil, &uidSize, &uid)
+        guard status == noErr else { return nil }
+
+        // Get device name
+        var name: CFString = "" as CFString
+        var nameSize = UInt32(MemoryLayout<CFString>.size)
+        propertyAddress.mSelector = kAudioDevicePropertyDeviceNameCFString
+
+        status = AudioObjectGetPropertyData(deviceID, &propertyAddress, 0, nil, &nameSize, &name)
+        guard status == noErr else { return nil }
+
+        // Get manufacturer
+        var manufacturer: CFString = "" as CFString
+        var manufacturerSize = UInt32(MemoryLayout<CFString>.size)
+        propertyAddress.mSelector = kAudioDevicePropertyDeviceManufacturerCFString
+
+        AudioObjectGetPropertyData(deviceID, &propertyAddress, 0, nil, &manufacturerSize, &manufacturer)
+
+        return AudioDevice(
+            id: deviceID,
+            uid: uid as String,
+            name: name as String,
+            manufacturer: manufacturer as String,
+            isInput: true
+        )
+    }
+
+    /// Sets the system default input device
+    private func setSystemInputDevice(deviceID: AudioDeviceID) {
+        var deviceIDCopy = deviceID
+        var propertyAddress = AudioObjectPropertyAddress(
+            mSelector: kAudioHardwarePropertyDefaultInputDevice,
+            mScope: kAudioObjectPropertyScopeGlobal,
+            mElement: kAudioObjectPropertyElementMain
+        )
+
+        let status = AudioObjectSetPropertyData(
+            AudioObjectID(kAudioObjectSystemObject),
+            &propertyAddress,
+            0,
+            nil,
+            UInt32(MemoryLayout<AudioDeviceID>.size),
+            &deviceIDCopy
+        )
+
+        if status != noErr {
+            print("[AudioInputManager] Failed to set input device: \(status)")
+        }
+    }
+
+    /// Sets up listener for device changes
+    private func setupDeviceChangeListener() {
+        var propertyAddress = AudioObjectPropertyAddress(
+            mSelector: kAudioHardwarePropertyDevices,
+            mScope: kAudioObjectPropertyScopeGlobal,
+            mElement: kAudioObjectPropertyElementMain
+        )
+
+        deviceListenerBlock = { [weak self] _, _ in
+            DispatchQueue.main.async {
+                self?.refreshDeviceList()
+            }
+        }
+
+        if let block = deviceListenerBlock {
+            AudioObjectAddPropertyListenerBlock(
+                AudioObjectID(kAudioObjectSystemObject),
+                &propertyAddress,
+                DispatchQueue.main,
+                block
+            )
+        }
+    }
+
+    /// Removes device change listener
+    private func removeDeviceChangeListener() {
+        guard let block = deviceListenerBlock else { return }
+
+        var propertyAddress = AudioObjectPropertyAddress(
+            mSelector: kAudioHardwarePropertyDevices,
+            mScope: kAudioObjectPropertyScopeGlobal,
+            mElement: kAudioObjectPropertyElementMain
+        )
+
+        AudioObjectRemovePropertyListenerBlock(
+            AudioObjectID(kAudioObjectSystemObject),
+            &propertyAddress,
+            DispatchQueue.main,
+            block
+        )
+    }
+}
@@ -0,0 +1,468 @@
+//
+//  DSPEngine.swift
+//  PsytranceVisualizer
+//
+//  Digital Signal Processing engine for audio analysis
+//
+
+import Accelerate
+import AVFoundation
+
+/// DSP Engine for real-time audio analysis
+final class DSPEngine {
+    // MARK: - Configuration
+
+    private let sampleRate: Float = 44100.0
+    private var fftSize: Int
+    private let melBandCount: Int = 64
+    private let subBassUpperFreq: Float = 100.0
+    private let historySize: Int = 128
+
+    // MARK: - FFT Setup
+
+    private var fftSetup: vDSP_DFT_Setup?
+    private var window: [Float]
+    private var realPart: [Float]
+    private var imagPart: [Float]
+    private var magnitudes: [Float]
+
+    // MARK: - Mel Filterbank
+
+    private var melFilterbank: [[Float]]
+    private var melOutput: [Float]
+
+    // MARK: - Analysis State
+
+    private var subBassHistory: [Float]
+    private var previousMagnitudes: [Float]
+    private var envelopeValue: Float = 0
+    private var previousEnvelope: Float = 0
+    private var pumpHistory: [Float]
+    private var lastPeakTime: Double = 0
+    private var peakThreshold: Float = 0.3
+
+    // MARK: - Reactivity
+
+    private var reactivity: Float = 0.5
+    private var smoothingFactor: Float = 0.3
+
+    // MARK: - Initialization
+
+    init(bufferSize: Int = 1024) {
+        self.fftSize = bufferSize
+
+        // Initialize FFT arrays
+        self.window = [Float](repeating: 0, count: fftSize)
+        self.realPart = [Float](repeating: 0, count: fftSize)
+        self.imagPart = [Float](repeating: 0, count: fftSize)
+        self.magnitudes = [Float](repeating: 0, count: fftSize / 2)
+        self.previousMagnitudes = [Float](repeating: 0, count: fftSize / 2)
+
+        // Initialize Mel arrays
+        self.melOutput = [Float](repeating: 0, count: melBandCount)
+        self.melFilterbank = []
+
+        // Initialize history arrays
+        self.subBassHistory = [Float](repeating: 0, count: historySize)
+        self.pumpHistory = [Float](repeating: 0, count: 64)
+
+        // Create Hann window
+        vDSP_hann_window(&window, vDSP_Length(fftSize), Int32(vDSP_HANN_NORM))
+
+        // Create FFT setup
+        fftSetup = vDSP_DFT_zop_CreateSetup(
+            nil,
+            vDSP_Length(fftSize),
+            .FORWARD
+        )
+
+        // Build Mel filterbank
+        buildMelFilterbank()
+    }
+
+    deinit {
+        if let setup = fftSetup {
+            vDSP_DFT_DestroySetup(setup)
+        }
+    }
+
+    // MARK: - Public Methods
+
+    /// Sets reactivity value (0.0 - 1.0)
+    func setReactivity(_ value: Float) {
+        reactivity = max(0.0, min(1.0, value))
+        // Adjust smoothing based on reactivity (higher reactivity = less smoothing)
+        smoothingFactor = 0.1 + (1.0 - reactivity) * 0.4
+    }
+
+    /// Reconfigures for new buffer size
+    func setBufferSize(_ size: Int) {
+        guard size != fftSize else { return }
+
+        fftSize = size
+
+        // Reinitialize arrays
+        window = [Float](repeating: 0, count: fftSize)
+        realPart = [Float](repeating: 0, count: fftSize)
+        imagPart = [Float](repeating: 0, count: fftSize)
+        magnitudes = [Float](repeating: 0, count: fftSize / 2)
+        previousMagnitudes = [Float](repeating: 0, count: fftSize / 2)
+
+        // Recreate window
+        vDSP_hann_window(&window, vDSP_Length(fftSize), Int32(vDSP_HANN_NORM))
+
+        // Recreate FFT setup
+        if let setup = fftSetup {
+            vDSP_DFT_DestroySetup(setup)
+        }
+        fftSetup = vDSP_DFT_zop_CreateSetup(nil, vDSP_Length(fftSize), .FORWARD)
+
+        // Rebuild filterbank
+        buildMelFilterbank()
+    }
+
+    /// Processes audio buffer and returns analysis data
+    func process(buffer: AVAudioPCMBuffer) -> AudioAnalysisData {
+        guard let channelData = buffer.floatChannelData else {
+            return .empty
+        }
+
+        let frameCount = Int(buffer.frameLength)
+        let channelCount = Int(buffer.format.channelCount)
+
+        // Extract stereo channels
+        var leftChannel = [Float](repeating: 0, count: frameCount)
+        var rightChannel = [Float](repeating: 0, count: frameCount)
+
+        if channelCount >= 1 {
+            leftChannel = Array(UnsafeBufferPointer(start: channelData[0], count: frameCount))
+        }
+        if channelCount >= 2 {
+            rightChannel = Array(UnsafeBufferPointer(start: channelData[1], count: frameCount))
+        } else {
+            rightChannel = leftChannel
+        }
+
+        // Mix to mono for analysis
+        var monoBuffer = [Float](repeating: 0, count: frameCount)
+        vDSP_vadd(leftChannel, 1, rightChannel, 1, &monoBuffer, 1, vDSP_Length(frameCount))
+        var half: Float = 0.5
+        vDSP_vsmul(monoBuffer, 1, &half, &monoBuffer, 1, vDSP_Length(frameCount))
+
+        // Calculate RMS
+        var rmsValue: Float = 0
+        vDSP_rmsqv(monoBuffer, 1, &rmsValue, vDSP_Length(frameCount))
+
+        // Perform FFT
+        let fftMagnitudes = performFFT(monoBuffer)
+
+        // Calculate Mel bands
+        let melBands = calculateMelBands(from: fftMagnitudes)
+
+        // Extract sub-bass
+        let subBassEnergy = calculateSubBassEnergy(from: fftMagnitudes)
+
+        // Update sub-bass history
+        subBassHistory.removeFirst()
+        subBassHistory.append(subBassEnergy)
+
+        // Calculate sidechain envelope and pump detection
+        let (envelope, pumpAmount, isPumping) = detectSidechainPump(subBassEnergy: subBassEnergy)
+
+        // Calculate HNR
+        let hnrRatio = calculateHNR(buffer: monoBuffer)
+
+        // Detect peaks/transients
+        let (isPeak, peakIntensity) = detectPeak(rms: rmsValue)
+
+        // Calculate spectral centroid
+        let spectralCentroid = calculateSpectralCentroid(magnitudes: fftMagnitudes)
+
+        return AudioAnalysisData(
+            fftMagnitudes: fftMagnitudes,
+            melBands: melBands,
+            subBassEnergy: subBassEnergy,
+            subBassHistory: subBassHistory,
+            sidechainEnvelope: envelope,
+            sidechainPumpAmount: pumpAmount,
+            isPumping: isPumping,
+            hnrRatio: hnrRatio,
+            isPeak: isPeak,
+            peakIntensity: peakIntensity,
+            leftChannel: leftChannel,
+            rightChannel: rightChannel,
+            spectralCentroid: spectralCentroid,
+            rmsLevel: rmsValue
+        )
+    }
+
+    // MARK: - FFT
+
+    private func performFFT(_ buffer: [Float]) -> [Float] {
+        guard let setup = fftSetup else { return magnitudes }
+
+        let count = min(buffer.count, fftSize)
+
+        // Apply window
+        var windowedBuffer = [Float](repeating: 0, count: fftSize)
+        for i in 0..<count {
+            windowedBuffer[i] = buffer[i] * window[i]
+        }
+
+        // Prepare for DFT (separate into real and imaginary)
+        for i in 0..<fftSize {
+            realPart[i] = windowedBuffer[i]
+            imagPart[i] = 0
+        }
+
+        // Perform DFT
+        var outputReal = [Float](repeating: 0, count: fftSize)
+        var outputImag = [Float](repeating: 0, count: fftSize)
+
+        vDSP_DFT_Execute(setup, realPart, imagPart, &outputReal, &outputImag)
+
+        // Calculate magnitudes
+        let halfSize = fftSize / 2
+        var newMagnitudes = [Float](repeating: 0, count: halfSize)
+
+        for i in 0..<halfSize {
+            let real = outputReal[i]
+            let imag = outputImag[i]
+            newMagnitudes[i] = sqrt(real * real + imag * imag) / Float(fftSize)
+        }
+
+        // Apply smoothing
+        for i in 0..<halfSize {
+            magnitudes[i] = magnitudes[i] * smoothingFactor + newMagnitudes[i] * (1.0 - smoothingFactor)
+        }
+
+        previousMagnitudes = magnitudes
+
+        return magnitudes
+    }
+
+    // MARK: - Mel Filterbank
+
+    private func buildMelFilterbank() {
+        let halfFFT = fftSize / 2
+        let nyquist = sampleRate / 2.0
+
+        // Mel scale conversion
+        func hzToMel(_ hz: Float) -> Float {
+            return 2595.0 * log10(1.0 + hz / 700.0)
+        }
+
+        func melToHz(_ mel: Float) -> Float {
+            return 700.0 * (pow(10.0, mel / 2595.0) - 1.0)
+        }
+
+        let melMin = hzToMel(20.0)
+        let melMax = hzToMel(nyquist)
+
+        // Create mel points
+        var melPoints = [Float](repeating: 0, count: melBandCount + 2)
+        for i in 0..<melBandCount + 2 {
+            melPoints[i] = melMin + Float(i) * (melMax - melMin) / Float(melBandCount + 1)
+        }
+
+        // Convert back to Hz
+        var hzPoints = melPoints.map { melToHz($0) }
+
+        // Convert to FFT bins
+        var binPoints = hzPoints.map { Int($0 / nyquist * Float(halfFFT)) }
+
+        // Build triangular filters
+        melFilterbank = []
+
+        for m in 1...melBandCount {
+            var filter = [Float](repeating: 0, count: halfFFT)
+
+            let startBin = binPoints[m - 1]
+            let centerBin = binPoints[m]
+            let endBin = binPoints[m + 1]
+
+            // Rising edge
+            for k in startBin..<centerBin {
+                if centerBin != startBin {
+                    filter[k] = Float(k - startBin) / Float(centerBin - startBin)
+                }
+            }
+
+            // Falling edge
+            for k in centerBin..<endBin {
+                if endBin != centerBin {
+                    filter[k] = Float(endBin - k) / Float(endBin - centerBin)
+                }
+            }
+
+            melFilterbank.append(filter)
+        }
+    }
+
+    private func calculateMelBands(from magnitudes: [Float]) -> [Float] {
+        var result = [Float](repeating: 0, count: melBandCount)
+
+        for (i, filter) in melFilterbank.enumerated() {
+            var sum: Float = 0
+            let count = min(filter.count, magnitudes.count)
+            for j in 0..<count {
+                sum += magnitudes[j] * filter[j]
+            }
+            // Apply logarithmic scaling
+            result[i] = log10(1.0 + sum * 10.0) / log10(11.0)
+        }
+
+        // Apply smoothing to mel output
+        for i in 0..<melBandCount {
+            melOutput[i] = melOutput[i] * smoothingFactor + result[i] * (1.0 - smoothingFactor)
+        }
+
+        return melOutput
+    }
+
+    // MARK: - Sub-Bass Analysis
+
+    private func calculateSubBassEnergy(from magnitudes: [Float]) -> Float {
+        let binFrequency = sampleRate / Float(fftSize)
+        let subBassBinCount = Int(subBassUpperFreq / binFrequency)
+
+        guard subBassBinCount > 0, magnitudes.count >= subBassBinCount else { return 0 }
+
+        var sum: Float = 0
+        for i in 0..<subBassBinCount {
+            sum += magnitudes[i] * magnitudes[i]
+        }
+
+        let rms = sqrt(sum / Float(subBassBinCount))
+
+        // Normalize and apply gain
+        let normalized = min(1.0, rms * 5.0 * (1.0 + reactivity))
+
+        return normalized
+    }
+
+    // MARK: - Sidechain Pump Detection
+
+    private func detectSidechainPump(subBassEnergy: Float) -> (envelope: Float, pumpAmount: Float, isPumping: Bool) {
+        // Envelope follower with fast attack, slow release
+        let attackTime: Float = 0.005  // 5ms attack
+        let releaseTime: Float = 0.15  // 150ms release
+
+        let attackCoeff = exp(-1.0 / (sampleRate * attackTime))
+        let releaseCoeff = exp(-1.0 / (sampleRate * releaseTime))
+
+        if subBassEnergy > envelopeValue {
+            envelopeValue = attackCoeff * envelopeValue + (1.0 - attackCoeff) * subBassEnergy
+        } else {
+            envelopeValue = releaseCoeff * envelopeValue + (1.0 - releaseCoeff) * subBassEnergy
+        }
+
+        // Update pump history
+        pumpHistory.removeFirst()
+        pumpHistory.append(envelopeValue)
+
+        // Analyze pump periodicity
+        var pumpAmount: Float = 0
+        var isPumping = false
+
+        // Look for characteristic pump pattern (rise and fall)
+        let derivative = envelopeValue - previousEnvelope
+        previousEnvelope = envelopeValue
+
+        // Detect pump by finding periodic envelope variations
+        if pumpHistory.count >= 32 {
+            let recent = Array(pumpHistory.suffix(32))
+            var variance: Float = 0
+            let mean = recent.reduce(0, +) / Float(recent.count)
+
+            for value in recent {
+                variance += (value - mean) * (value - mean)
+            }
+            variance /= Float(recent.count)
+
+            // Higher variance = more pumping
+            pumpAmount = min(1.0, sqrt(variance) * 4.0)
+            isPumping = pumpAmount > 0.3 && abs(derivative) > 0.02
+        }
+
+        return (envelopeValue, pumpAmount, isPumping)
+    }
+
+    // MARK: - HNR Calculation
+
+    private func calculateHNR(buffer: [Float]) -> Float {
+        // Use autocorrelation to estimate harmonicity
+        let frameSize = min(buffer.count, 512)
+        var autocorr = [Float](repeating: 0, count: frameSize)
+
+        // Compute autocorrelation
+        vDSP_conv(buffer, 1, buffer, 1, &autocorr, 1, vDSP_Length(frameSize), vDSP_Length(frameSize))
+
+        // Find the peak in autocorrelation (excluding lag 0)
+        let minLag = 20  // Minimum lag to avoid DC component
+        let maxLag = min(frameSize - 1, 400)  // Maximum lag
+
+        guard maxLag > minLag else { return 0.5 }
+
+        var maxValue: Float = 0
+        var maxIndex: vDSP_Length = 0
+
+        let searchRange = Array(autocorr[minLag...maxLag])
+        vDSP_maxvi(searchRange, 1, &maxValue, &maxIndex, vDSP_Length(searchRange.count))
+
+        // Calculate HNR as ratio of peak to first value
+        let noiseFloor = autocorr.suffix(from: maxLag).reduce(0) { $0 + abs($1) } / Float(frameSize - maxLag)
+
+        let harmonicPower = maxValue
+        let noisePower = max(noiseFloor, 0.0001)
+
+        // Convert to 0-1 range
+        let hnr = harmonicPower / (harmonicPower + noisePower)
+
+        return max(0.0, min(1.0, hnr))
+    }
+
+    // MARK: - Peak Detection
+
+    private var previousRMS: Float = 0
+    private var rmsHistory: [Float] = Array(repeating: 0, count: 16)
+
+    private func detectPeak(rms: Float) -> (isPeak: Bool, intensity: Float) {
+        // Update history
+        rmsHistory.removeFirst()
+        rmsHistory.append(rms)
+
+        // Calculate moving average
+        let average = rmsHistory.reduce(0, +) / Float(rmsHistory.count)
+
+        // Detect sudden increase
+        let increase = rms - previousRMS
+        let threshold = average * (0.5 + reactivity * 0.5)
+
+        previousRMS = rms
+
+        let isPeak = increase > threshold && rms > average * 1.5
+        let intensity = isPeak ? min(1.0, increase / max(average, 0.01) * 2.0) : 0
+
+        return (isPeak, intensity)
+    }
+
+    // MARK: - Spectral Centroid
+
+    private func calculateSpectralCentroid(magnitudes: [Float]) -> Float {
+        var weightedSum: Float = 0
+        var sum: Float = 0
+
+        for (i, mag) in magnitudes.enumerated() {
+            weightedSum += Float(i) * mag
+            sum += mag
+        }
+
+        guard sum > 0 else { return 0.5 }
+
+        let centroid = weightedSum / sum
+        let normalized = centroid / Float(magnitudes.count)
+
+        return max(0.0, min(1.0, normalized))
+    }
+}
@@ -0,0 +1,90 @@
+//
+//  AppSettings.swift
+//  PsytranceVisualizer
+//
+//  Persistent application settings
+//
+
+import Foundation
+
+/// Application settings that are persisted between sessions
+struct AppSettings: Codable {
+    /// Selected audio input device UID
+    var selectedAudioDeviceUID: String?
+
+    /// Audio buffer size (512 or 1024 samples)
+    var bufferSize: Int
+
+    /// Last used visualization mode (1-8)
+    var lastVisualizationMode: Int
+
+    /// Reactivity slider value (0.0 - 1.0)
+    var reactivity: Float
+
+    /// Whether app was in fullscreen mode
+    var isFullscreen: Bool
+
+    /// Last window frame (for restoration)
+    var windowFrame: CodableRect?
+
+    /// Volume/gain adjustment
+    var inputGain: Float
+
+    /// Whether to show FPS counter
+    var showFPS: Bool
+
+    /// Default settings
+    static var `default`: AppSettings {
+        AppSettings(
+            selectedAudioDeviceUID: nil,
+            bufferSize: 1024,
+            lastVisualizationMode: 1,
+            reactivity: 0.5,
+            isFullscreen: false,
+            windowFrame: nil,
+            inputGain: 1.0,
+            showFPS: false
+        )
+    }
+
+    /// Available buffer sizes
+    static let availableBufferSizes = [512, 1024]
+
+    /// Validates and clamps settings to valid ranges
+    mutating func validate() {
+        // Clamp buffer size to valid options
+        if !AppSettings.availableBufferSizes.contains(bufferSize) {
+            bufferSize = 1024
+        }
+
+        // Clamp visualization mode
+        if lastVisualizationMode < 1 || lastVisualizationMode > 8 {
+            lastVisualizationMode = 1
+        }
+
+        // Clamp reactivity
+        reactivity = max(0.0, min(1.0, reactivity))
+
+        // Clamp input gain
+        inputGain = max(0.0, min(2.0, inputGain))
+    }
+}
+
+/// Codable wrapper for CGRect
+struct CodableRect: Codable {
+    var x: Double
+    var y: Double
+    var width: Double
+    var height: Double
+
+    init(from rect: CGRect) {
+        self.x = Double(rect.origin.x)
+        self.y = Double(rect.origin.y)
+        self.width = Double(rect.size.width)
+        self.height = Double(rect.size.height)
+    }
+
+    var cgRect: CGRect {
+        CGRect(x: x, y: y, width: width, height: height)
+    }
+}
@@ -0,0 +1,111 @@
+//
+//  AudioAnalysisData.swift
+//  PsytranceVisualizer
+//
+//  Audio analysis data structure containing all DSP results
+//
+
+import Foundation
+
+/// Contains all audio analysis data computed by DSPEngine
+struct AudioAnalysisData {
+    // MARK: - FFT Data
+
+    /// Raw FFT magnitude spectrum
+    var fftMagnitudes: [Float]
+
+    // MARK: - Mel Spectrogram
+
+    /// 64 Mel frequency bands
+    var melBands: [Float]
+
+    // MARK: - Sub-Bass Analysis
+
+    /// RMS energy below 100Hz (0.0 - 1.0)
+    var subBassEnergy: Float
+
+    /// History buffer for time-based visualization
+    var subBassHistory: [Float]
+
+    // MARK: - Sidechain Detection
+
+    /// Current envelope follower value (0.0 - 1.0)
+    var sidechainEnvelope: Float
+
+    /// Detected pumping amount (0.0 - 1.0)
+    var sidechainPumpAmount: Float
+
+    /// Whether pump is currently active
+    var isPumping: Bool
+
+    // MARK: - Harmonic-to-Noise Ratio
+
+    /// HNR ratio (0.0 = noise, 1.0 = pure harmonic)
+    var hnrRatio: Float
+
+    // MARK: - Transient Detection
+
+    /// Whether a transient peak was detected
+    var isPeak: Bool
+
+    /// Intensity of the detected peak (0.0 - 1.0)
+    var peakIntensity: Float
+
+    // MARK: - Stereo Channels
+
+    /// Left channel samples
+    var leftChannel: [Float]
+
+    /// Right channel samples
+    var rightChannel: [Float]
+
+    // MARK: - Additional Analysis
+
+    /// Spectral centroid (brightness) normalized 0.0 - 1.0
+    var spectralCentroid: Float
+
+    /// Overall RMS level
+    var rmsLevel: Float
+
+    // MARK: - Initialization
+
+    /// Creates an empty AudioAnalysisData with default values
+    static var empty: AudioAnalysisData {
+        AudioAnalysisData(
+            fftMagnitudes: [],
+            melBands: Array(repeating: 0, count: 64),
+            subBassEnergy: 0,
+            subBassHistory: [],
+            sidechainEnvelope: 0,
+            sidechainPumpAmount: 0,
+            isPumping: false,
+            hnrRatio: 0.5,
+            isPeak: false,
+            peakIntensity: 0,
+            leftChannel: [],
+            rightChannel: [],
+            spectralCentroid: 0.5,
+            rmsLevel: 0
+        )
+    }
+
+    /// Creates AudioAnalysisData with specified FFT size
+    static func create(fftSize: Int) -> AudioAnalysisData {
+        AudioAnalysisData(
+            fftMagnitudes: Array(repeating: 0, count: fftSize / 2),
+            melBands: Array(repeating: 0, count: 64),
+            subBassEnergy: 0,
+            subBassHistory: Array(repeating: 0, count: 128),
+            sidechainEnvelope: 0,
+            sidechainPumpAmount: 0,
+            isPumping: false,
+            hnrRatio: 0.5,
+            isPeak: false,
+            peakIntensity: 0,
+            leftChannel: [],
+            rightChannel: [],
+            spectralCentroid: 0.5,
+            rmsLevel: 0
+        )
+    }
+}
@@ -0,0 +1,109 @@
+//
+//  VisualizationMode.swift
+//  PsytranceVisualizer
+//
+//  Enumeration of all available visualization modes
+//
+
+import Foundation
+
+/// Available visualization modes, accessible via keyboard shortcuts 1-8
+enum VisualizationMode: Int, CaseIterable, Codable {
+    case fftClassic = 1
+    case melSpectrogram = 2
+    case subBass = 3
+    case sidechainPump = 4
+    case hnr = 5
+    case mandelbrot = 6
+    case tunnelWarp = 7
+    case dmtGeometry = 8
+
+    /// Display name for UI
+    var displayName: String {
+        switch self {
+        case .fftClassic:
+            return "FFT Classic"
+        case .melSpectrogram:
+            return "Mel Spektrogramm"
+        case .subBass:
+            return "Sub-Bass (<100Hz)"
+        case .sidechainPump:
+            return "Sidechain Pump"
+        case .hnr:
+            return "Harmonic/Noise"
+        case .mandelbrot:
+            return "Mandelbrot"
+        case .tunnelWarp:
+            return "Tunnel Warp"
+        case .dmtGeometry:
+            return "DMT Geometry"
+        }
+    }
+
+    /// Keyboard shortcut (1-8)
+    var shortcut: String {
+        return "\(self.rawValue)"
+    }
+
+    /// Metal shader function name
+    var shaderFunctionName: String {
+        switch self {
+        case .fftClassic:
+            return "fftClassicFragment"
+        case .melSpectrogram:
+            return "melSpectrogramFragment"
+        case .subBass:
+            return "subBassFragment"
+        case .sidechainPump:
+            return "sidechainPumpFragment"
+        case .hnr:
+            return "hnrFragment"
+        case .mandelbrot:
+            return "mandelbrotFragment"
+        case .tunnelWarp:
+            return "tunnelWarpFragment"
+        case .dmtGeometry:
+            return "dmtGeometryFragment"
+        }
+    }
+
+    /// Description of the visualization
+    var description: String {
+        switch self {
+        case .fftClassic:
+            return "Classic frequency spectrum bars with glow effects"
+        case .melSpectrogram:
+            return "64-band Mel spectrogram with scrolling waterfall display"
+        case .subBass:
+            return "Pulsating rings visualizing sub-bass energy below 100Hz"
+        case .sidechainPump:
+            return "Breathing zoom effect synchronized to sidechain pumping"
+        case .hnr:
+            return "Harmonic vs noise visualization with geometric shapes"
+        case .mandelbrot:
+            return "Audio-reactive Mandelbrot fractal with zoom and color cycling"
+        case .tunnelWarp:
+            return "Infinite tunnel effect with warp distortion"
+        case .dmtGeometry:
+            return "Sacred geometry patterns: Flower of Life, Metatron's Cube, Sri Yantra"
+        }
+    }
+
+    /// Creates mode from keyboard key code
+    static func fromKeyCode(_ keyCode: UInt16) -> VisualizationMode? {
+        // Key codes for 1-8 on US keyboard
+        let keyCodes: [UInt16: Int] = [
+            18: 1,  // 1
+            19: 2,  // 2
+            20: 3,  // 3
+            21: 4,  // 4
+            23: 5,  // 5
+            22: 6,  // 6
+            26: 7,  // 7
+            28: 8   // 8
+        ]
+
+        guard let modeNumber = keyCodes[keyCode] else { return nil }
+        return VisualizationMode(rawValue: modeNumber)
+    }
+}
@@ -0,0 +1,41 @@
+// swift-tools-version: 5.9
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "PsytranceVisualizer",
+    platforms: [
+        .macOS(.v13)
+    ],
+    products: [
+        .executable(
+            name: "PsytranceVisualizer",
+            targets: ["PsytranceVisualizer"]
+        )
+    ],
+    targets: [
+        .executableTarget(
+            name: "PsytranceVisualizer",
+            path: ".",
+            exclude: [
+                "Package.swift",
+                "README.md"
+            ],
+            sources: [
+                "App",
+                "Audio",
+                "Models",
+                "Rendering",
+                "UI",
+                "Utilities"
+            ],
+            resources: [
+                .process("Resources")
+            ],
+            swiftSettings: [
+                .unsafeFlags(["-enable-bare-slash-regex"])
+            ]
+        )
+    ]
+)
@@ -0,0 +1,465 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 56;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1100000000000001 /* PsytranceVisualizerApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000001 /* PsytranceVisualizerApp.swift */; };
+		1100000000000002 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000002 /* AppDelegate.swift */; };
+		1100000000000003 /* AudioInputManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000003 /* AudioInputManager.swift */; };
+		1100000000000004 /* DSPEngine.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000004 /* DSPEngine.swift */; };
+		1100000000000005 /* AudioAnalysisData.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000005 /* AudioAnalysisData.swift */; };
+		1100000000000006 /* VisualizationMode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000006 /* VisualizationMode.swift */; };
+		1100000000000007 /* AppSettings.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000007 /* AppSettings.swift */; };
+		1100000000000008 /* MetalRenderer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000008 /* MetalRenderer.swift */; };
+		1100000000000009 /* Common.metal in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000009 /* Common.metal */; };
+		1100000000000010 /* FFTClassicShader.metal in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000010 /* FFTClassicShader.metal */; };
+		1100000000000011 /* MelSpectrogramShader.metal in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000011 /* MelSpectrogramShader.metal */; };
+		1100000000000012 /* SubBassShader.metal in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000012 /* SubBassShader.metal */; };
+		1100000000000013 /* SidechainPumpShader.metal in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000013 /* SidechainPumpShader.metal */; };
+		1100000000000014 /* HNRShader.metal in Sources */ = {isa = PBXBuildFile; fileRef = 2100000000000014 /* HNRShader.metal */; };
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+	};
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+}
@@ -0,0 +1,279 @@
+//
+//  MetalRenderer.swift
+//  PsytranceVisualizer
+//
+//  Metal-based renderer for all visualization modes
+//
+
+import MetalKit
+import simd
+
+/// Uniform data passed to all shaders
+struct ShaderUniforms {
+    var time: Float
+    var resolution: SIMD2<Float>
+    var reactivity: Float
+
+    // Audio analysis data
+    var subBassEnergy: Float
+    var sidechainPump: Float
+    var sidechainEnvelope: Float
+    var hnrRatio: Float
+    var isPeak: Float
+    var peakIntensity: Float
+    var spectralCentroid: Float
+    var rmsLevel: Float
+
+    // Visualization mode (1-8)
+    var mode: Int32
+
+    // Padding for Metal alignment
+    var padding: SIMD2<Float> = .zero
+}
+
+/// Metal renderer managing all visualization shaders
+final class MetalRenderer: NSObject, ObservableObject {
+    // MARK: - Properties
+
+    private let device: MTLDevice
+    private let commandQueue: MTLCommandQueue
+    private var pipelineStates: [VisualizationMode: MTLRenderPipelineState] = [:]
+    private var currentPipelineState: MTLRenderPipelineState?
+
+    @Published private(set) var currentMode: VisualizationMode = .fftClassic
+
+    // MARK: - Buffers
+
+    private var uniformBuffer: MTLBuffer?
+    private var fftBuffer: MTLBuffer?
+    private var melBuffer: MTLBuffer?
+    private var subBassHistoryBuffer: MTLBuffer?
+
+    // MARK: - State
+
+    private var startTime: CFAbsoluteTime
+    private var uniforms = ShaderUniforms(
+        time: 0,
+        resolution: SIMD2<Float>(1920, 1080),
+        reactivity: 0.5,
+        subBassEnergy: 0,
+        sidechainPump: 0,
+        sidechainEnvelope: 0,
+        hnrRatio: 0.5,
+        isPeak: 0,
+        peakIntensity: 0,
+        spectralCentroid: 0.5,
+        rmsLevel: 0,
+        mode: 1
+    )
+
+    private var audioData: AudioAnalysisData = .empty
+
+    // MARK: - Constants
+
+    private let maxFFTSize = 1024
+    private let melBandCount = 64
+    private let historySize = 128
+
+    // MARK: - Initialization
+
+    init?(device: MTLDevice) {
+        guard let queue = device.makeCommandQueue() else {
+            print("[MetalRenderer] Failed to create command queue")
+            return nil
+        }
+
+        self.device = device
+        self.commandQueue = queue
+        self.startTime = CFAbsoluteTimeGetCurrent()
+
+        super.init()
+
+        createBuffers()
+        loadShaders()
+    }
+
+    // MARK: - Public Methods
+
+    /// Sets the current visualization mode
+    func setVisualizationMode(_ mode: VisualizationMode) {
+        currentMode = mode
+        currentPipelineState = pipelineStates[mode]
+        uniforms.mode = Int32(mode.rawValue)
+        print("[MetalRenderer] Mode changed to: \(mode.displayName)")
+    }
+
+    /// Updates audio analysis data
+    func updateAudioData(_ data: AudioAnalysisData) {
+        audioData = data
+
+        // Update uniforms
+        uniforms.subBassEnergy = data.subBassEnergy
+        uniforms.sidechainPump = data.sidechainPumpAmount
+        uniforms.sidechainEnvelope = data.sidechainEnvelope
+        uniforms.hnrRatio = data.hnrRatio
+        uniforms.isPeak = data.isPeak ? 1.0 : 0.0
+        uniforms.peakIntensity = data.peakIntensity
+        uniforms.spectralCentroid = data.spectralCentroid
+        uniforms.rmsLevel = data.rmsLevel
+
+        // Update FFT buffer
+        updateFFTBuffer(data.fftMagnitudes)
+
+        // Update Mel buffer
+        updateMelBuffer(data.melBands)
+
+        // Update sub-bass history buffer
+        updateSubBassHistoryBuffer(data.subBassHistory)
+    }
+
+    /// Sets reactivity value
+    func setReactivity(_ value: Float) {
+        uniforms.reactivity = max(0.0, min(1.0, value))
+    }
+
+    // MARK: - Private Methods
+
+    private func createBuffers() {
+        // Uniform buffer
+        uniformBuffer = device.makeBuffer(
+            length: MemoryLayout<ShaderUniforms>.stride,
+            options: .storageModeShared
+        )
+
+        // FFT magnitude buffer
+        fftBuffer = device.makeBuffer(
+            length: maxFFTSize * MemoryLayout<Float>.stride,
+            options: .storageModeShared
+        )
+
+        // Mel bands buffer
+        melBuffer = device.makeBuffer(
+            length: melBandCount * MemoryLayout<Float>.stride,
+            options: .storageModeShared
+        )
+
+        // Sub-bass history buffer
+        subBassHistoryBuffer = device.makeBuffer(
+            length: historySize * MemoryLayout<Float>.stride,
+            options: .storageModeShared
+        )
+    }
+
+    private func updateFFTBuffer(_ magnitudes: [Float]) {
+        guard let buffer = fftBuffer else { return }
+        let count = min(magnitudes.count, maxFFTSize)
+        memcpy(buffer.contents(), magnitudes, count * MemoryLayout<Float>.stride)
+    }
+
+    private func updateMelBuffer(_ bands: [Float]) {
+        guard let buffer = melBuffer else { return }
+        let count = min(bands.count, melBandCount)
+        memcpy(buffer.contents(), bands, count * MemoryLayout<Float>.stride)
+    }
+
+    private func updateSubBassHistoryBuffer(_ history: [Float]) {
+        guard let buffer = subBassHistoryBuffer else { return }
+        let count = min(history.count, historySize)
+        memcpy(buffer.contents(), history, count * MemoryLayout<Float>.stride)
+    }
+
+    private func loadShaders() {
+        guard let library = device.makeDefaultLibrary() else {
+            print("[MetalRenderer] Failed to load shader library")
+            return
+        }
+
+        // Load vertex shader (shared)
+        guard let vertexFunction = library.makeFunction(name: "vertexShader") else {
+            print("[MetalRenderer] Failed to load vertex shader")
+            return
+        }
+
+        // Load all fragment shaders
+        for mode in VisualizationMode.allCases {
+            guard let fragmentFunction = library.makeFunction(name: mode.shaderFunctionName) else {
+                print("[MetalRenderer] Failed to load shader: \(mode.shaderFunctionName)")
+                continue
+            }
+
+            let descriptor = MTLRenderPipelineDescriptor()
+            descriptor.vertexFunction = vertexFunction
+            descriptor.fragmentFunction = fragmentFunction
+            descriptor.colorAttachments[0].pixelFormat = .bgra8Unorm
+
+            // Enable blending for glow effects
+            descriptor.colorAttachments[0].isBlendingEnabled = true
+            descriptor.colorAttachments[0].sourceRGBBlendFactor = .sourceAlpha
+            descriptor.colorAttachments[0].destinationRGBBlendFactor = .oneMinusSourceAlpha
+            descriptor.colorAttachments[0].sourceAlphaBlendFactor = .one
+            descriptor.colorAttachments[0].destinationAlphaBlendFactor = .oneMinusSourceAlpha
+
+            do {
+                let pipelineState = try device.makeRenderPipelineState(descriptor: descriptor)
+                pipelineStates[mode] = pipelineState
+                print("[MetalRenderer] Loaded shader: \(mode.displayName)")
+            } catch {
+                print("[MetalRenderer] Failed to create pipeline state for \(mode.displayName): \(error)")
+            }
+        }
+
+        // Set initial pipeline state
+        currentPipelineState = pipelineStates[.fftClassic]
+    }
+}
+
+// MARK: - MTKViewDelegate
+
+extension MetalRenderer: MTKViewDelegate {
+    func mtkView(_ view: MTKView, drawableSizeWillChange size: CGSize) {
+        uniforms.resolution = SIMD2<Float>(Float(size.width), Float(size.height))
+    }
+
+    func draw(in view: MTKView) {
+        guard let pipelineState = currentPipelineState,
+              let drawable = view.currentDrawable,
+              let renderPassDescriptor = view.currentRenderPassDescriptor else {
+            return
+        }
+
+        // Update time
+        uniforms.time = Float(CFAbsoluteTimeGetCurrent() - startTime)
+
+        // Update uniform buffer
+        if let buffer = uniformBuffer {
+            memcpy(buffer.contents(), &uniforms, MemoryLayout<ShaderUniforms>.stride)
+        }
+
+        // Create command buffer
+        guard let commandBuffer = commandQueue.makeCommandBuffer(),
+              let renderEncoder = commandBuffer.makeRenderCommandEncoder(descriptor: renderPassDescriptor) else {
+            return
+        }
+
+        // Set pipeline state
+        renderEncoder.setRenderPipelineState(pipelineState)
+
+        // Set buffers
+        if let buffer = uniformBuffer {
+            renderEncoder.setFragmentBuffer(buffer, offset: 0, index: 0)
+        }
+        if let buffer = fftBuffer {
+            renderEncoder.setFragmentBuffer(buffer, offset: 0, index: 1)
+        }
+        if let buffer = melBuffer {
+            renderEncoder.setFragmentBuffer(buffer, offset: 0, index: 2)
+        }
+        if let buffer = subBassHistoryBuffer {
+            renderEncoder.setFragmentBuffer(buffer, offset: 0, index: 3)
+        }
+
+        // Draw fullscreen quad
+        renderEncoder.drawPrimitives(type: .triangleStrip, vertexStart: 0, vertexCount: 4)
+
+        renderEncoder.endEncoding()
+
+        commandBuffer.present(drawable)
+        commandBuffer.commit()
+    }
+}
@@ -0,0 +1,241 @@
+//
+//  Common.metal
+//  PsytranceVisualizer
+//
+//  Shared shader functions, types, and psytrance color palette
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+// MARK: - Uniforms Structure
+
+struct ShaderUniforms {
+    float time;
+    float2 resolution;
+    float reactivity;
+
+    float subBassEnergy;
+    float sidechainPump;
+    float sidechainEnvelope;
+    float hnrRatio;
+    float isPeak;
+    float peakIntensity;
+    float spectralCentroid;
+    float rmsLevel;
+
+    int mode;
+    float2 padding;
+};
+
+// MARK: - Vertex Data
+
+struct VertexOut {
+    float4 position [[position]];
+    float2 uv;
+};
+
+// MARK: - Psytrance Color Palette
+
+constant float3 neonMagenta = float3(1.0, 0.0, 1.0);
+constant float3 neonCyan = float3(0.0, 1.0, 1.0);
+constant float3 neonGreen = float3(0.224, 1.0, 0.078);
+constant float3 uvViolet = float3(0.482, 0.0, 1.0);
+constant float3 hotPink = float3(1.0, 0.2, 0.6);
+constant float3 electricBlue = float3(0.0, 0.5, 1.0);
+constant float3 deepPurple = float3(0.1, 0.0, 0.15);
+
+// MARK: - Palette Functions
+
+inline float3 getPaletteColor(int index) {
+    switch (index % 6) {
+        case 0: return neonMagenta;
+        case 1: return neonCyan;
+        case 2: return neonGreen;
+        case 3: return uvViolet;
+        case 4: return hotPink;
+        default: return electricBlue;
+    }
+}
+
+inline float3 rainbowPalette(float t) {
+    float3 a = float3(0.5, 0.5, 0.5);
+    float3 b = float3(0.5, 0.5, 0.5);
+    float3 c = float3(1.0, 1.0, 1.0);
+    float3 d = float3(0.0, 0.33, 0.67);
+    return a + b * cos(6.28318 * (c * t + d));
+}
+
+inline float3 psytrancePalette(float t, float time) {
+    // Cycle through psytrance colors
+    float phase = fract(t + time * 0.1);
+
+    if (phase < 0.2) {
+        return mix(uvViolet, neonMagenta, phase * 5.0);
+    } else if (phase < 0.4) {
+        return mix(neonMagenta, hotPink, (phase - 0.2) * 5.0);
+    } else if (phase < 0.6) {
+        return mix(hotPink, neonCyan, (phase - 0.4) * 5.0);
+    } else if (phase < 0.8) {
+        return mix(neonCyan, neonGreen, (phase - 0.6) * 5.0);
+    } else {
+        return mix(neonGreen, uvViolet, (phase - 0.8) * 5.0);
+    }
+}
+
+// MARK: - Heatmap for Spectrogram
+
+inline float3 heatmap(float t) {
+    // Low energy: dark purple
+    // High energy: white through neon colors
+    if (t < 0.2) {
+        return mix(float3(0.05, 0.0, 0.1), uvViolet, t * 5.0);
+    } else if (t < 0.4) {
+        return mix(uvViolet, neonMagenta, (t - 0.2) * 5.0);
+    } else if (t < 0.6) {
+        return mix(neonMagenta, hotPink, (t - 0.4) * 5.0);
+    } else if (t < 0.8) {
+        return mix(hotPink, neonCyan, (t - 0.6) * 5.0);
+    } else {
+        return mix(neonCyan, float3(1.0), (t - 0.8) * 5.0);
+    }
+}
+
+// MARK: - Noise Functions
+
+// Simplex-like noise
+inline float hash(float2 p) {
+    float3 p3 = fract(float3(p.xyx) * 0.1031);
+    p3 += dot(p3, p3.yzx + 33.33);
+    return fract((p3.x + p3.y) * p3.z);
+}
+
+inline float noise(float2 p) {
+    float2 i = floor(p);
+    float2 f = fract(p);
+    f = f * f * (3.0 - 2.0 * f);
+
+    float a = hash(i);
+    float b = hash(i + float2(1.0, 0.0));
+    float c = hash(i + float2(0.0, 1.0));
+    float d = hash(i + float2(1.0, 1.0));
+
+    return mix(mix(a, b, f.x), mix(c, d, f.x), f.y);
+}
+
+inline float fbm(float2 p, int octaves) {
+    float value = 0.0;
+    float amplitude = 0.5;
+    float frequency = 1.0;
+
+    for (int i = 0; i < octaves; i++) {
+        value += amplitude * noise(p * frequency);
+        frequency *= 2.0;
+        amplitude *= 0.5;
+    }
+
+    return value;
+}
+
+// 3D noise for volumetric effects
+inline float noise3D(float3 p) {
+    float3 i = floor(p);
+    float3 f = fract(p);
+    f = f * f * (3.0 - 2.0 * f);
+
+    float2 uv = i.xy + float2(37.0, 17.0) * i.z;
+    float a = hash(uv);
+    float b = hash(uv + float2(1.0, 0.0));
+    float c = hash(uv + float2(0.0, 1.0));
+    float d = hash(uv + float2(1.0, 1.0));
+
+    float2 uv2 = uv + float2(37.0, 17.0);
+    float e = hash(uv2);
+    float ff = hash(uv2 + float2(1.0, 0.0));
+    float g = hash(uv2 + float2(0.0, 1.0));
+    float h = hash(uv2 + float2(1.0, 1.0));
+
+    float x1 = mix(mix(a, b, f.x), mix(c, d, f.x), f.y);
+    float x2 = mix(mix(e, ff, f.x), mix(g, h, f.x), f.y);
+
+    return mix(x1, x2, f.z);
+}
+
+// MARK: - Utility Functions
+
+inline float2 rotate(float2 p, float angle) {
+    float c = cos(angle);
+    float s = sin(angle);
+    return float2(p.x * c - p.y * s, p.x * s + p.y * c);
+}
+
+inline float map(float value, float inMin, float inMax, float outMin, float outMax) {
+    return outMin + (outMax - outMin) * (value - inMin) / (inMax - inMin);
+}
+
+inline float smoothstepEdge(float edge0, float edge1, float x) {
+    float t = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0);
+    return t * t * (3.0 - 2.0 * t);
+}
+
+// MARK: - Glow Effect
+
+inline float3 addGlow(float3 color, float intensity, float3 glowColor) {
+    return color + glowColor * intensity * intensity;
+}
+
+// MARK: - SDF Functions for Geometry
+
+inline float sdCircle(float2 p, float r) {
+    return length(p) - r;
+}
+
+inline float sdBox(float2 p, float2 b) {
+    float2 d = abs(p) - b;
+    return length(max(d, 0.0)) + min(max(d.x, d.y), 0.0);
+}
+
+inline float sdHexagon(float2 p, float r) {
+    const float3 k = float3(-0.866025404, 0.5, 0.577350269);
+    p = abs(p);
+    p -= 2.0 * min(dot(k.xy, p), 0.0) * k.xy;
+    p -= float2(clamp(p.x, -k.z * r, k.z * r), r);
+    return length(p) * sign(p.y);
+}
+
+inline float sdStar(float2 p, float r, int n, float m) {
+    float an = 3.141593 / float(n);
+    float en = 3.141593 / m;
+    float2 acs = float2(cos(an), sin(an));
+    float2 ecs = float2(cos(en), sin(en));
+
+    float bn = fmod(atan2(p.x, p.y), 2.0 * an) - an;
+    p = length(p) * float2(cos(bn), abs(sin(bn)));
+    p -= r * acs;
+    p += ecs * clamp(-dot(p, ecs), 0.0, r * acs.y / ecs.y);
+    return length(p) * sign(p.x);
+}
+
+// MARK: - Vertex Shader (Fullscreen Quad)
+
+vertex VertexOut vertexShader(uint vertexID [[vertex_id]]) {
+    // Generate fullscreen quad
+    float2 positions[4] = {
+        float2(-1.0, -1.0),
+        float2( 1.0, -1.0),
+        float2(-1.0,  1.0),
+        float2( 1.0,  1.0)
+    };
+
+    float2 uvs[4] = {
+        float2(0.0, 1.0),
+        float2(1.0, 1.0),
+        float2(0.0, 0.0),
+        float2(1.0, 0.0)
+    };
+
+    VertexOut out;
+    out.position = float4(positions[vertexID], 0.0, 1.0);
+    out.uv = uvs[vertexID];
+    return out;
+}
@@ -0,0 +1,290 @@
+//
+//  DMTGeometryShader.metal
+//  PsytranceVisualizer
+//
+//  Sacred geometry patterns: Flower of Life, Metatron's Cube, Sri Yantra, Hexagonal
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+// === SACRED GEOMETRY PRIMITIVES ===
+
+// Flower of Life - overlapping circles
+float flowerOfLife(float2 p, float scale, float time) {
+    p *= scale;
+
+    float result = 0.0;
+    float circleRadius = 0.5;
+
+    // Center circle
+    result = max(result, 1.0 - smoothstep(circleRadius - 0.02, circleRadius, length(p)));
+
+    // 6 circles around center
+    for (int i = 0; i < 6; i++) {
+        float angle = float(i) * 3.14159 / 3.0 + time * 0.1;
+        float2 offset = float2(cos(angle), sin(angle)) * circleRadius;
+        float d = length(p - offset);
+        result = max(result, 1.0 - smoothstep(circleRadius - 0.02, circleRadius, d));
+    }
+
+    // Second ring of 12 circles
+    for (int i = 0; i < 12; i++) {
+        float angle = float(i) * 3.14159 / 6.0 + time * 0.05;
+        float2 offset = float2(cos(angle), sin(angle)) * circleRadius * 2.0;
+        float d = length(p - offset);
+        result = max(result, 0.5 * (1.0 - smoothstep(circleRadius - 0.02, circleRadius, d)));
+    }
+
+    return result;
+}
+
+// Metatron's Cube - 13 circles with connecting lines
+float metatronsCube(float2 p, float scale, float time) {
+    p *= scale;
+
+    float result = 0.0;
+    float nodeRadius = 0.08;
+    float lineWidth = 0.01;
+
+    // Define the 13 points of Metatron's Cube
+    float2 points[13];
+    points[0] = float2(0.0, 0.0); // Center
+
+    // Inner hexagon
+    for (int i = 0; i < 6; i++) {
+        float angle = float(i) * 3.14159 / 3.0 + time * 0.1;
+        points[i + 1] = float2(cos(angle), sin(angle)) * 0.5;
+    }
+
+    // Outer hexagon (rotated)
+    for (int i = 0; i < 6; i++) {
+        float angle = float(i) * 3.14159 / 3.0 + 3.14159 / 6.0 + time * 0.1;
+        points[i + 7] = float2(cos(angle), sin(angle)) * 0.866;
+    }
+
+    // Draw nodes
+    for (int i = 0; i < 13; i++) {
+        float d = length(p - points[i]);
+        float node = 1.0 - smoothstep(nodeRadius - 0.01, nodeRadius, d);
+        result = max(result, node);
+    }
+
+    // Draw connecting lines
+    for (int i = 0; i < 13; i++) {
+        for (int j = i + 1; j < 13; j++) {
+            float2 a = points[i];
+            float2 b = points[j];
+            float2 pa = p - a;
+            float2 ba = b - a;
+            float t = clamp(dot(pa, ba) / dot(ba, ba), 0.0, 1.0);
+            float d = length(pa - ba * t);
+            float line = 1.0 - smoothstep(lineWidth, lineWidth + 0.005, d);
+            result = max(result, line * 0.5);
+        }
+    }
+
+    return result;
+}
+
+// Sri Yantra - 9 interlocking triangles
+float sriYantra(float2 p, float scale, float time) {
+    p *= scale;
+
+    float result = 0.0;
+    float lineWidth = 0.015;
+
+    // Rotating factor
+    float rot = time * 0.05;
+
+    // Draw 4 upward triangles
+    for (int i = 0; i < 4; i++) {
+        float size = 0.3 + float(i) * 0.15;
+        float yOffset = -0.1 + float(i) * 0.05;
+
+        float2 tp = p - float2(0.0, yOffset);
+        tp = rotate(tp, rot);
+
+        // Triangle SDF
+        float2 a = float2(0.0, size);
+        float2 b = float2(-size * 0.866, -size * 0.5);
+        float2 c = float2(size * 0.866, -size * 0.5);
+
+        float d1 = dot(tp - a, normalize(float2(b.y - a.y, a.x - b.x)));
+        float d2 = dot(tp - b, normalize(float2(c.y - b.y, b.x - c.x)));
+        float d3 = dot(tp - c, normalize(float2(a.y - c.y, c.x - a.x)));
+
+        float triangleDist = max(max(d1, d2), d3);
+        float edge = 1.0 - smoothstep(0.0, lineWidth, abs(triangleDist));
+        result = max(result, edge * (1.0 - float(i) * 0.15));
+    }
+
+    // Draw 5 downward triangles
+    for (int i = 0; i < 5; i++) {
+        float size = 0.25 + float(i) * 0.12;
+        float yOffset = 0.1 - float(i) * 0.04;
+
+        float2 tp = p - float2(0.0, yOffset);
+        tp = rotate(tp, -rot);
+
+        float2 a = float2(0.0, -size);
+        float2 b = float2(-size * 0.866, size * 0.5);
+        float2 c = float2(size * 0.866, size * 0.5);
+
+        float d1 = dot(tp - a, normalize(float2(b.y - a.y, a.x - b.x)));
+        float d2 = dot(tp - b, normalize(float2(c.y - b.y, b.x - c.x)));
+        float d3 = dot(tp - c, normalize(float2(a.y - c.y, c.x - a.x)));
+
+        float triangleDist = max(max(d1, d2), d3);
+        float edge = 1.0 - smoothstep(0.0, lineWidth, abs(triangleDist));
+        result = max(result, edge * (1.0 - float(i) * 0.12));
+    }
+
+    // Central bindu (point)
+    float bindu = 1.0 - smoothstep(0.03, 0.04, length(p));
+    result = max(result, bindu);
+
+    return result;
+}
+
+// Hexagonal grid pattern
+float hexagonalPattern(float2 p, float scale, float time) {
+    p *= scale;
+
+    // Hexagonal grid transformation
+    float2 s = float2(1.0, 1.732);
+    float2 h = s * 0.5;
+
+    float2 a = fmod(p, s) - h;
+    float2 b = fmod(p + h, s) - h;
+
+    float2 gv = dot(a, a) < dot(b, b) ? a : b;
+
+    float hexDist = max(abs(gv.x), dot(abs(gv), normalize(float2(1.0, 1.732))));
+
+    float edge = 1.0 - smoothstep(0.4, 0.42, hexDist);
+    float fill = smoothstep(0.38, 0.4, hexDist);
+
+    // Animate individual hexagons
+    float2 cellId = floor(p / s);
+    float cellPhase = hash(cellId + floor(time * 0.5)) * 2.0 * 3.14159;
+    float pulse = 0.5 + 0.5 * sin(time * 3.0 + cellPhase);
+
+    return edge + fill * pulse * 0.3;
+}
+
+// === MAIN FRAGMENT SHADER ===
+
+fragment float4 dmtGeometryFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+
+    float subBass = uniforms.subBassEnergy;
+    float hnr = uniforms.hnrRatio;
+    float peak = uniforms.isPeak;
+    float peakIntensity = uniforms.peakIntensity;
+
+    // Aspect ratio correction
+    float aspectRatio = resolution.x / resolution.y;
+    float2 p = (uv - 0.5) * 2.0;
+    p.x *= aspectRatio;
+
+    // Scale pulsing with sub-bass
+    float scale = 2.0 + subBass * 0.5 * (0.5 + reactivity * 0.5);
+    p *= scale;
+
+    // Rotation
+    float rotation = time * 0.1;
+    p = rotate(p, rotation);
+
+    // Determine which geometry to show
+    // Changes on peaks or every few seconds
+    float cycleTime = 8.0; // Seconds per geometry
+    float cyclePhase = fmod(time, cycleTime * 4.0) / cycleTime;
+    int geometryIndex = int(cyclePhase);
+
+    // Force change on strong peaks
+    if (peak > 0.5 && peakIntensity > 0.7) {
+        geometryIndex = int(fmod(float(geometryIndex) + 1.0, 4.0));
+    }
+
+    // Calculate all geometries (for blending)
+    float flower = flowerOfLife(p, 1.0, time);
+    float metatron = metatronsCube(p, 1.5, time);
+    float yantra = sriYantra(p, 1.2, time);
+    float hexGrid = hexagonalPattern(p, 3.0, time);
+
+    // Select primary and secondary for blending
+    float primary = 0.0;
+    float secondary = 0.0;
+    float blendPhase = fract(cyclePhase);
+
+    switch (geometryIndex) {
+        case 0:
+            primary = flower;
+            secondary = metatron;
+            break;
+        case 1:
+            primary = metatron;
+            secondary = yantra;
+            break;
+        case 2:
+            primary = yantra;
+            secondary = hexGrid;
+            break;
+        default:
+            primary = hexGrid;
+            secondary = flower;
+            break;
+    }
+
+    // Smooth transition
+    float transitionWindow = 0.2; // 20% of cycle for transition
+    float blend = smoothstep(1.0 - transitionWindow, 1.0, blendPhase);
+    float geometry = mix(primary, secondary, blend);
+
+    // Complexity based on HNR (more harmonic = more detail)
+    geometry *= 0.7 + hnr * 0.3;
+
+    // Color based on geometry and audio
+    float colorPhase = time * 0.1 + geometry * 0.5;
+    float3 geometryColor = psytrancePalette(colorPhase, time);
+
+    // Glow intensity from peak
+    float glowIntensity = 0.5 + peakIntensity * 0.5;
+    float3 glowColor = mix(neonMagenta, neonCyan, 0.5 + 0.5 * sin(time));
+
+    // Compose final color
+    float3 finalColor = geometryColor * geometry;
+
+    // Add glow
+    finalColor = addGlow(finalColor, geometry * glowIntensity, glowColor);
+
+    // Background - subtle pulsing gradient
+    float dist = length(uv - 0.5);
+    float3 bgColor = mix(deepPurple, uvViolet * 0.3, dist);
+    bgColor *= 0.8 + 0.2 * subBass;
+
+    finalColor = mix(bgColor, finalColor, clamp(geometry * 1.5, 0.0, 1.0));
+
+    // Peak flash
+    if (peak > 0.5) {
+        finalColor += float3(1.0) * peakIntensity * 0.2;
+    }
+
+    // Outer glow
+    float outerGlow = exp(-dist * 3.0);
+    finalColor += neonMagenta * outerGlow * 0.1 * subBass;
+
+    return float4(finalColor, 1.0);
+}
@@ -0,0 +1,117 @@
+//
+//  FFTClassicShader.metal
+//  PsytranceVisualizer
+//
+//  Classic FFT bar visualization with glow effects
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+// Include common definitions
+#include "Common.metal"
+
+fragment float4 fftClassicFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+
+    // Number of bars to display
+    const int numBars = 64;
+    const float barWidth = 1.0 / float(numBars);
+    const float barGap = barWidth * 0.2;
+    const float actualBarWidth = barWidth - barGap;
+
+    // Determine which bar this pixel belongs to
+    int barIndex = int(uv.x * float(numBars));
+    barIndex = clamp(barIndex, 0, numBars - 1);
+
+    // Get FFT magnitude for this bar (with some averaging for smoothness)
+    float magnitude = fftData[barIndex];
+
+    // Apply reactivity scaling
+    magnitude = magnitude * (0.5 + reactivity * 1.5);
+    magnitude = clamp(magnitude, 0.0, 1.0);
+
+    // Calculate bar position within its cell
+    float barCellX = fract(uv.x * float(numBars));
+    float barCenterX = 0.5;
+
+    // Distance from bar center (for width calculation)
+    float distFromCenter = abs(barCellX - barCenterX);
+    float halfWidth = actualBarWidth * 0.5 / barWidth;
+
+    // Check if we're inside the bar horizontally
+    bool insideBarX = distFromCenter < halfWidth;
+
+    // Bar height from bottom
+    float barHeight = magnitude;
+
+    // Add some bounce on peaks
+    if (uniforms.isPeak > 0.5) {
+        barHeight += uniforms.peakIntensity * 0.1 * sin(time * 20.0 + float(barIndex) * 0.3);
+    }
+
+    // Check if we're inside the bar vertically (from bottom)
+    float yFromBottom = 1.0 - uv.y;
+    bool insideBarY = yFromBottom < barHeight;
+
+    // Color based on frequency and magnitude
+    float colorPhase = float(barIndex) / float(numBars) + time * 0.05;
+    float3 barColor = psytrancePalette(colorPhase, time);
+
+    // Intensity gradient from bottom to top
+    float intensityGradient = yFromBottom / max(barHeight, 0.01);
+    intensityGradient = clamp(intensityGradient, 0.0, 1.0);
+
+    // Make top of bars brighter
+    barColor = mix(barColor * 0.6, barColor * 1.5, intensityGradient);
+
+    // Calculate glow
+    float glowRadius = 0.05 * (1.0 + magnitude);
+    float distToBar = 0.0;
+
+    if (!insideBarX) {
+        distToBar = (distFromCenter - halfWidth) * barWidth;
+    }
+    if (!insideBarY && yFromBottom >= barHeight) {
+        float vertDist = yFromBottom - barHeight;
+        distToBar = max(distToBar, vertDist);
+    }
+
+    float glow = exp(-distToBar * distToBar / (glowRadius * glowRadius * 2.0));
+    glow *= magnitude;
+
+    // Final color
+    float3 finalColor = float3(0.0);
+
+    if (insideBarX && insideBarY) {
+        // Inside the bar
+        finalColor = barColor;
+
+        // Add peak cap (bright line at top)
+        float capThickness = 0.01;
+        if (abs(yFromBottom - barHeight) < capThickness) {
+            finalColor = float3(1.0); // White cap
+        }
+    } else {
+        // Add glow outside bars
+        finalColor = barColor * glow * 0.5;
+    }
+
+    // Add subtle background pulse with sub-bass
+    float bgPulse = uniforms.subBassEnergy * 0.05;
+    finalColor += deepPurple * bgPulse;
+
+    // Add overall glow at peaks
+    if (uniforms.isPeak > 0.5) {
+        finalColor += neonMagenta * uniforms.peakIntensity * 0.1;
+    }
+
+    return float4(finalColor, 1.0);
+}
@@ -0,0 +1,142 @@
+//
+//  HNRShader.metal
+//  PsytranceVisualizer
+//
+//  Harmonic-to-Noise ratio visualization with geometric shapes vs chaos
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+fragment float4 hnrFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+    float hnr = uniforms.hnrRatio;
+    float subBass = uniforms.subBassEnergy;
+
+    // Center coordinates
+    float2 center = float2(0.5, 0.5);
+    float aspectRatio = resolution.x / resolution.y;
+
+    float2 p = uv - center;
+    p.x *= aspectRatio;
+
+    float dist = length(p);
+    float angle = atan2(p.y, p.x);
+
+    // === HARMONIC SIDE (High HNR = Clear geometric shapes) ===
+
+    // Rotating hexagon
+    float2 rotP = rotate(p, time * 0.5);
+    float hexDist = sdHexagon(rotP, 0.2 + subBass * 0.1);
+    float hexEdge = 1.0 - smoothstep(0.0, 0.02, abs(hexDist));
+
+    // Inner rotating triangle (star)
+    float2 rotP2 = rotate(p, -time * 0.3);
+    float starDist = sdStar(rotP2, 0.12 + subBass * 0.05, 3, 2.5);
+    float starEdge = 1.0 - smoothstep(0.0, 0.015, abs(starDist));
+
+    // Concentric circles
+    float circles = 0.0;
+    for (int i = 0; i < 4; i++) {
+        float radius = 0.1 + float(i) * 0.08 + sin(time + float(i)) * 0.02;
+        float circleDist = abs(dist - radius);
+        float circle = 1.0 - smoothstep(0.0, 0.008, circleDist);
+        circles += circle;
+    }
+
+    // Combine harmonic shapes
+    float harmonicShapes = hexEdge + starEdge * 0.8 + circles * 0.5;
+    harmonicShapes = clamp(harmonicShapes, 0.0, 1.0);
+
+    // Harmonic color - clean neon
+    float3 harmonicColor = mix(neonCyan, neonMagenta, 0.5 + 0.5 * sin(angle * 2.0 + time));
+
+    // === NOISE SIDE (Low HNR = Chaotic particles) ===
+
+    // Noise-based particles
+    float noiseField = 0.0;
+    for (int i = 0; i < 5; i++) {
+        float2 noiseP = p * (3.0 + float(i) * 2.0);
+        noiseP += time * float(i + 1) * 0.1;
+        float n = noise(noiseP);
+        n = pow(n, 2.0);
+        noiseField += n * (1.0 / float(i + 1));
+    }
+    noiseField = clamp(noiseField, 0.0, 1.0);
+
+    // Turbulent swirls
+    float2 turbP = p * 4.0;
+    float turbulence = fbm(turbP + time * 0.5, 4);
+
+    // Chaotic speckles
+    float speckles = 0.0;
+    for (int i = 0; i < 30; i++) {
+        float2 specklePos = float2(
+            hash(float2(float(i) * 0.1, time * 0.01)) - 0.5,
+            hash(float2(float(i) * 0.2, time * 0.01 + 0.5)) - 0.5
+        );
+        specklePos *= 0.8;
+        specklePos.x *= aspectRatio;
+
+        float speckleDist = length(p - specklePos);
+        float speckle = exp(-speckleDist * speckleDist * 500.0);
+        speckle *= hash(float2(float(i), floor(time * 2.0)));
+        speckles += speckle;
+    }
+
+    float noiseVisual = noiseField * 0.4 + turbulence * 0.3 + speckles * 0.3;
+    noiseVisual = clamp(noiseVisual, 0.0, 1.0);
+
+    // Noise color - harsh, flickering
+    float3 noiseColor = mix(hotPink, uvViolet, turbulence);
+    noiseColor *= 0.8 + 0.2 * sin(time * 20.0 + noise(p * 10.0) * 10.0);
+
+    // === BLEND based on HNR ===
+
+    // HNR determines the mix: 1.0 = pure harmonic, 0.0 = pure noise
+    float harmonicAmount = hnr;
+    float noiseAmount = 1.0 - hnr;
+
+    // Apply reactivity to make transition more dramatic
+    harmonicAmount = pow(harmonicAmount, 1.0 / (1.0 + reactivity));
+
+    float3 harmonicContrib = harmonicColor * harmonicShapes * harmonicAmount;
+    float3 noiseContrib = noiseColor * noiseVisual * noiseAmount;
+
+    float3 finalColor = harmonicContrib + noiseContrib;
+
+    // Add center indicator showing current HNR
+    float indicator = smoothstep(0.25, 0.24, dist) - smoothstep(0.24, 0.23, dist);
+    float indicatorFill = smoothstep(0.23, 0.22, dist);
+
+    // Split indicator by HNR
+    float harmonicSide = step(0.0, p.x);
+    float noiseSide = 1.0 - harmonicSide;
+
+    finalColor += neonCyan * indicator * 0.3;
+    finalColor += neonCyan * indicatorFill * harmonicSide * hnr * 0.2;
+    finalColor += hotPink * indicatorFill * noiseSide * (1.0 - hnr) * 0.2;
+
+    // Background glow
+    float bgGlow = exp(-dist * dist * 4.0);
+    float3 bgColor = mix(deepPurple, uvViolet * 0.3, dist);
+    finalColor += bgColor * (1.0 - clamp(harmonicShapes + noiseVisual, 0.0, 1.0));
+
+    // Peak flash
+    if (uniforms.isPeak > 0.5) {
+        finalColor += float3(1.0) * uniforms.peakIntensity * 0.15 * exp(-dist * 3.0);
+    }
+
+    return float4(finalColor, 1.0);
+}
@@ -0,0 +1,121 @@
+//
+//  MandelbrotShader.metal
+//  PsytranceVisualizer
+//
+//  Audio-reactive Mandelbrot fractal with zoom and color cycling
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+fragment float4 mandelbrotFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+
+    float subBass = uniforms.subBassEnergy;
+    float pump = uniforms.sidechainPump;
+    float centroid = uniforms.spectralCentroid;
+
+    // Aspect ratio correction
+    float aspectRatio = resolution.x / resolution.y;
+
+    // Map UV to complex plane
+    float2 c = (uv - 0.5) * 2.0;
+    c.x *= aspectRatio;
+
+    // Audio-reactive zoom level
+    // Base zoom increases over time, modulated by sub-bass
+    float baseZoom = 1.0 + time * 0.02;
+    float audioZoom = subBass * 0.5 * (0.5 + reactivity * 0.5);
+    float zoom = pow(2.0, baseZoom + audioZoom);
+
+    // Zoom center - drifts based on sidechain
+    float2 zoomCenter = float2(-0.7, 0.0);
+    zoomCenter.x += sin(time * 0.1) * 0.3 + pump * 0.1 * sin(time);
+    zoomCenter.y += cos(time * 0.13) * 0.2 + pump * 0.1 * cos(time);
+
+    // Apply zoom
+    c = c / zoom + zoomCenter;
+
+    // Mandelbrot iteration
+    float2 z = float2(0.0);
+    int maxIterations = int(50.0 + reactivity * 100.0);
+    int iterations = 0;
+
+    float smoothIter = 0.0;
+
+    for (int i = 0; i < 150; i++) {
+        if (i >= maxIterations) break;
+
+        // z = z^2 + c
+        float2 zNew = float2(
+            z.x * z.x - z.y * z.y + c.x,
+            2.0 * z.x * z.y + c.y
+        );
+        z = zNew;
+
+        float mag2 = dot(z, z);
+        if (mag2 > 256.0) {
+            // Smooth iteration count
+            smoothIter = float(i) - log2(log2(mag2)) + 4.0;
+            break;
+        }
+
+        iterations = i;
+    }
+
+    // Normalize iteration count
+    float normalizedIter = smoothIter / float(maxIterations);
+
+    // Color based on iterations
+    float3 color;
+
+    if (iterations >= maxIterations - 1) {
+        // Inside the set - deep color
+        color = deepPurple * (0.5 + 0.5 * subBass);
+    } else {
+        // Outside - color cycling based on iterations and audio
+        float colorPhase = normalizedIter + time * 0.1 + centroid;
+
+        // Use psytrance palette with color rotation
+        color = psytrancePalette(colorPhase, time);
+
+        // Modulate brightness by iteration depth
+        float brightness = 0.5 + 0.5 * sin(smoothIter * 0.3);
+        color *= brightness;
+
+        // Add glow at boundary
+        float edgeFactor = 1.0 - normalizedIter;
+        edgeFactor = pow(edgeFactor, 3.0);
+        color = addGlow(color, edgeFactor * 0.5, neonCyan);
+    }
+
+    // Sub-bass pulse effect
+    color *= 0.8 + 0.2 * subBass;
+
+    // Sidechain breathing
+    float breathe = 1.0 + pump * 0.1;
+    color *= breathe;
+
+    // Peak flash in bright areas
+    if (uniforms.isPeak > 0.5 && iterations < maxIterations - 1) {
+        color += neonMagenta * uniforms.peakIntensity * 0.2 * normalizedIter;
+    }
+
+    // Subtle vignette
+    float2 vignetteuv = uv - 0.5;
+    float vignette = 1.0 - dot(vignetteuv, vignetteuv) * 0.5;
+    color *= vignette;
+
+    return float4(color, 1.0);
+}
@@ -0,0 +1,95 @@
+//
+//  MelSpectrogramShader.metal
+//  PsytranceVisualizer
+//
+//  Mel spectrogram with scrolling waterfall display
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+fragment float4 melSpectrogramFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+
+    // Configuration
+    const int numBands = 64;
+    const int historyLength = 128;
+
+    // Map UV to mel band and history position
+    int bandIndex = int(uv.x * float(numBands));
+    bandIndex = clamp(bandIndex, 0, numBands - 1);
+
+    // Scrolling effect - newer data at bottom
+    float scrollOffset = fract(time * 0.5); // Scroll speed
+    float yPos = fract(uv.y + scrollOffset);
+
+    // Get mel magnitude
+    float magnitude = melData[bandIndex];
+    magnitude = magnitude * (0.5 + reactivity * 1.5);
+    magnitude = clamp(magnitude, 0.0, 1.0);
+
+    // Create waterfall effect using history
+    int historyIndex = int(yPos * float(historyLength));
+    historyIndex = clamp(historyIndex, 0, historyLength - 1);
+
+    // Combine current and historical data for waterfall
+    float historicalValue = historyData[historyIndex];
+
+    // Blend between current magnitude and position-based intensity
+    float intensity = magnitude;
+
+    // Add some variance based on band position
+    float bandPhase = float(bandIndex) / float(numBands);
+    intensity *= 0.8 + 0.2 * sin(bandPhase * 6.28318 + time);
+
+    // Apply fade for older data (top of screen)
+    float ageFade = 1.0 - uv.y * 0.3;
+    intensity *= ageFade;
+
+    // Generate color using heatmap
+    float3 color = heatmap(intensity);
+
+    // Add frequency-dependent hue shift
+    float hueShift = bandPhase * 0.3;
+    color = psytrancePalette(intensity + hueShift, time);
+
+    // Modulate by actual intensity
+    color *= 0.3 + intensity * 0.7;
+
+    // Add grid lines for visual reference
+    float gridX = abs(fract(uv.x * float(numBands)) - 0.5) * 2.0;
+    float gridY = abs(fract(uv.y * 16.0) - 0.5) * 2.0;
+
+    float gridLine = smoothstep(0.95, 1.0, gridX) + smoothstep(0.95, 1.0, gridY);
+    gridLine *= 0.1;
+
+    color += float3(gridLine) * uvViolet;
+
+    // Add glow on high energy
+    if (intensity > 0.7) {
+        float glow = (intensity - 0.7) / 0.3;
+        color = addGlow(color, glow * 0.5, neonCyan);
+    }
+
+    // Peak flash
+    if (uniforms.isPeak > 0.5) {
+        color += neonMagenta * uniforms.peakIntensity * 0.15;
+    }
+
+    // Sub-bass emphasis on lower bands
+    if (bandIndex < 8) {
+        color += uvViolet * uniforms.subBassEnergy * 0.3;
+    }
+
+    return float4(color, 1.0);
+}
@@ -0,0 +1,130 @@
+//
+//  SidechainPumpShader.metal
+//  PsytranceVisualizer
+//
+//  Visualizes sidechain pumping with breathing zoom effect
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+fragment float4 sidechainPumpFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+
+    float pump = uniforms.sidechainPump;
+    float envelope = uniforms.sidechainEnvelope;
+    float subBass = uniforms.subBassEnergy;
+
+    // Center and aspect ratio correction
+    float2 center = float2(0.5, 0.5);
+    float aspectRatio = resolution.x / resolution.y;
+
+    float2 p = uv - center;
+    p.x *= aspectRatio;
+
+    // Apply breathing zoom effect
+    float zoomAmount = 1.0 + pump * 0.3 * (0.5 + reactivity * 0.5);
+    p /= zoomAmount;
+
+    // Radial distortion synchronized with pump
+    float dist = length(p);
+    float angle = atan2(p.y, p.x);
+
+    // Pump-synced radial waves
+    float radialWave = sin(dist * 15.0 - time * 3.0 + envelope * 10.0);
+    radialWave *= pump * 0.3;
+
+    // Apply distortion
+    float2 distortedP = p;
+    distortedP *= 1.0 + radialWave * 0.1;
+
+    // Create concentric pulse rings
+    float rings = 0.0;
+    const int numRings = 5;
+
+    for (int i = 0; i < numRings; i++) {
+        float ringPhase = fract(time * 0.5 + float(i) * 0.2 - envelope * 0.5);
+        float ringRadius = ringPhase * 0.6;
+        float ringWidth = 0.02 + pump * 0.03;
+
+        float ringDist = abs(dist - ringRadius);
+        float ring = exp(-ringDist * ringDist / (ringWidth * ringWidth));
+        ring *= 1.0 - ringPhase; // Fade out as it expands
+        ring *= pump;
+
+        rings += ring;
+    }
+
+    // Breathing glow in center
+    float breathIntensity = 0.5 + 0.5 * sin(time * 4.0 + envelope * 6.28318);
+    breathIntensity *= pump;
+
+    float centerGlow = exp(-dist * dist * 8.0);
+    centerGlow *= breathIntensity;
+
+    // Color based on pump phase
+    float3 pumpColor = mix(uvViolet, neonMagenta, envelope);
+    float3 ringColor = mix(neonCyan, hotPink, pump);
+
+    // Background pattern - angular sectors that pulse
+    float sectors = 8.0;
+    float sectorAngle = fract(angle / (2.0 * 3.14159) * sectors);
+    float sectorPulse = smoothstep(0.4, 0.5, sectorAngle) - smoothstep(0.5, 0.6, sectorAngle);
+    sectorPulse *= pump * 0.3;
+    sectorPulse *= exp(-dist * 3.0);
+
+    // Spiral pattern
+    float spiral = fract(angle / (2.0 * 3.14159) * 3.0 + dist * 5.0 - time * 0.5);
+    spiral = smoothstep(0.4, 0.5, spiral) - smoothstep(0.5, 0.6, spiral);
+    spiral *= pump * 0.2;
+    spiral *= exp(-dist * 2.0);
+
+    // Compose final color
+    float3 finalColor = float3(0.0);
+
+    // Base gradient
+    float3 bgGradient = mix(deepPurple, uvViolet * 0.3, dist);
+    finalColor += bgGradient;
+
+    // Add rings
+    finalColor += ringColor * rings;
+
+    // Add center glow
+    finalColor += pumpColor * centerGlow;
+
+    // Add sector pulse
+    finalColor += neonGreen * sectorPulse;
+
+    // Add spiral
+    finalColor += electricBlue * spiral;
+
+    // Screen flash on strong pump
+    if (pump > 0.7) {
+        float flash = (pump - 0.7) / 0.3;
+        flash *= 0.2;
+        finalColor += neonMagenta * flash;
+    }
+
+    // Peak highlight
+    if (uniforms.isPeak > 0.5) {
+        float peakFlash = uniforms.peakIntensity * 0.2;
+        finalColor += float3(1.0) * peakFlash * exp(-dist * 5.0);
+    }
+
+    // Vignette
+    float vignette = 1.0 - smoothstep(0.4, 0.8, dist);
+    finalColor *= 0.7 + vignette * 0.3;
+
+    return float4(finalColor, 1.0);
+}
@@ -0,0 +1,116 @@
+//
+//  SubBassShader.metal
+//  PsytranceVisualizer
+//
+//  Pulsating rings visualizing sub-bass energy below 100Hz
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+fragment float4 subBassFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+    float subBass = uniforms.subBassEnergy;
+
+    // Center coordinates
+    float2 center = float2(0.5, 0.5);
+    float aspectRatio = resolution.x / resolution.y;
+
+    // Correct for aspect ratio
+    float2 p = uv - center;
+    p.x *= aspectRatio;
+
+    float dist = length(p);
+    float angle = atan2(p.y, p.x);
+
+    // Main pulsating circle
+    float baseRadius = 0.15;
+    float pulseAmount = subBass * (0.5 + reactivity * 0.5);
+    float mainRadius = baseRadius + pulseAmount * 0.2;
+
+    // Add wobble based on angle
+    float wobble = sin(angle * 4.0 + time * 2.0) * 0.02 * subBass;
+    mainRadius += wobble;
+
+    // Core circle
+    float coreDist = abs(dist - mainRadius);
+    float coreGlow = exp(-coreDist * coreDist * 200.0);
+
+    // Inner fill with gradient
+    float innerFill = smoothstep(mainRadius, mainRadius * 0.3, dist);
+    innerFill *= 0.5 + 0.5 * subBass;
+
+    // Expanding rings
+    const int numRings = 6;
+    float ringIntensity = 0.0;
+
+    for (int i = 0; i < numRings; i++) {
+        // Each ring expands outward over time
+        float ringPhase = fract(time * 0.3 - float(i) * 0.15);
+        float ringRadius = mainRadius + ringPhase * 0.5;
+
+        // Get historical sub-bass value for this ring
+        int histIndex = clamp(int(ringPhase * 64.0), 0, 63);
+        float histValue = historyData[histIndex];
+
+        // Ring thickness based on historical energy
+        float thickness = 0.005 + histValue * 0.01;
+        float ringDist = abs(dist - ringRadius);
+
+        // Ring visibility
+        float ring = exp(-ringDist * ringDist / (thickness * thickness));
+        ring *= (1.0 - ringPhase); // Fade as it expands
+        ring *= histValue; // Intensity based on history
+
+        ringIntensity += ring;
+    }
+
+    // Color composition
+    float3 coreColor = mix(uvViolet, neonMagenta, subBass);
+    float3 ringColor = mix(neonMagenta, hotPink, 0.5 + 0.5 * sin(time));
+
+    float3 finalColor = float3(0.0);
+
+    // Add core
+    finalColor += coreColor * (innerFill + coreGlow * 2.0);
+
+    // Add rings
+    finalColor += ringColor * ringIntensity * 0.8;
+
+    // Add central glow
+    float centerGlow = exp(-dist * dist * 10.0) * subBass;
+    finalColor += uvViolet * centerGlow * 0.5;
+
+    // Add angular rays on peaks
+    if (uniforms.isPeak > 0.5) {
+        float rays = abs(sin(angle * 8.0 + time * 5.0));
+        rays = pow(rays, 4.0) * exp(-dist * 2.0);
+        rays *= uniforms.peakIntensity;
+        finalColor += neonCyan * rays * 0.5;
+    }
+
+    // Outer vignette
+    float vignette = 1.0 - smoothstep(0.3, 0.8, dist);
+    finalColor *= vignette;
+
+    // Background pulse
+    float bgPulse = subBass * 0.1;
+    finalColor += deepPurple * bgPulse;
+
+    // Add noise texture for organic feel
+    float noiseVal = noise(p * 20.0 + time);
+    finalColor += uvViolet * noiseVal * 0.02 * subBass;
+
+    return float4(finalColor, 1.0);
+}
@@ -0,0 +1,136 @@
+//
+//  TunnelWarpShader.metal
+//  PsytranceVisualizer
+//
+//  Infinite tunnel effect with warp distortion
+//
+
+#include <metal_stdlib>
+using namespace metal;
+
+#include "Common.metal"
+
+fragment float4 tunnelWarpFragment(
+    VertexOut in [[stage_in]],
+    constant ShaderUniforms& uniforms [[buffer(0)]],
+    constant float* fftData [[buffer(1)]],
+    constant float* melData [[buffer(2)]],
+    constant float* historyData [[buffer(3)]]
+) {
+    float2 uv = in.uv;
+    float2 resolution = uniforms.resolution;
+    float time = uniforms.time;
+    float reactivity = uniforms.reactivity;
+
+    float subBass = uniforms.subBassEnergy;
+    float pump = uniforms.sidechainPump;
+    float hnr = uniforms.hnrRatio;
+
+    // Center and aspect correction
+    float aspectRatio = resolution.x / resolution.y;
+    float2 p = (uv - 0.5) * 2.0;
+    p.x *= aspectRatio;
+
+    // Convert to polar coordinates for tunnel
+    float dist = length(p);
+    float angle = atan2(p.y, p.x);
+
+    // Avoid division by zero at center
+    dist = max(dist, 0.001);
+
+    // Tunnel depth (inverse of distance)
+    float depth = 1.0 / dist;
+
+    // Speed controlled by sub-bass
+    float baseSpeed = 2.0;
+    float audioSpeed = subBass * 3.0 * (0.5 + reactivity * 0.5);
+    float speed = baseSpeed + audioSpeed;
+
+    // Warp distortion from sidechain pump
+    float warpAmount = pump * 0.5;
+    depth += sin(angle * 4.0 + time * 2.0) * warpAmount * 0.5;
+    angle += sin(depth * 2.0 + time) * warpAmount * 0.3;
+
+    // Create tunnel coordinates
+    float2 tunnelUV = float2(
+        angle / (2.0 * 3.14159) + 0.5, // Angular coordinate [0, 1]
+        depth + time * speed            // Depth with movement
+    );
+
+    // === TUNNEL WALL PATTERNS ===
+
+    // Hexagonal grid pattern
+    float2 hexUV = tunnelUV * float2(8.0, 2.0);
+    float2 hexCell = floor(hexUV);
+    float2 hexFrac = fract(hexUV);
+
+    // Offset every other row
+    if (fmod(hexCell.y, 2.0) > 0.5) {
+        hexFrac.x = fract(hexFrac.x + 0.5);
+    }
+
+    float hexDist = length(hexFrac - 0.5);
+    float hexPattern = smoothstep(0.4, 0.35, hexDist);
+
+    // Add concentric rings
+    float rings = sin(tunnelUV.y * 20.0) * 0.5 + 0.5;
+    rings = smoothstep(0.3, 0.7, rings);
+
+    // Angular segments
+    float segments = 8.0;
+    float angularLines = abs(sin(angle * segments));
+    angularLines = smoothstep(0.95, 1.0, angularLines);
+
+    // Combine patterns
+    float pattern = hexPattern * 0.5 + rings * 0.3 + angularLines * 0.2;
+
+    // === COLORING ===
+
+    // Base color cycles with depth and time
+    float colorPhase = tunnelUV.y * 0.1 + time * 0.2;
+    float3 tunnelColor = psytrancePalette(colorPhase, time);
+
+    // Depth fog (darker towards center/infinity)
+    float fog = exp(-dist * 2.0);
+    tunnelColor *= fog;
+
+    // Pattern overlay
+    float3 patternColor = mix(uvViolet, neonCyan, rings);
+    tunnelColor = mix(tunnelColor, patternColor, pattern * 0.5);
+
+    // Edge glow (bright at tunnel edges)
+    float edgeGlow = exp(-dist * 5.0);
+    tunnelColor = addGlow(tunnelColor, (1.0 - edgeGlow) * 0.3, neonMagenta);
+
+    // Center light (looking into the tunnel)
+    float centerLight = exp(-dist * dist * 50.0);
+    tunnelColor += float3(1.0) * centerLight * 0.5;
+
+    // HNR affects pattern complexity
+    float patternIntensity = hnr;
+    tunnelColor *= 0.7 + patternIntensity * 0.3;
+
+    // Add noise for texture
+    float noiseVal = noise(tunnelUV * 10.0 + time);
+    tunnelColor += uvViolet * noiseVal * 0.1;
+
+    // Pump flash
+    if (pump > 0.5) {
+        float pumpFlash = (pump - 0.5) * 2.0;
+        tunnelColor += neonMagenta * pumpFlash * 0.2;
+    }
+
+    // Peak flash
+    if (uniforms.isPeak > 0.5) {
+        float peakFlash = uniforms.peakIntensity;
+        tunnelColor += float3(1.0) * peakFlash * 0.15 * (1.0 - edgeGlow);
+    }
+
+    // Speed lines effect
+    float speedLines = fract(tunnelUV.y * 50.0 - time * speed * 2.0);
+    speedLines = smoothstep(0.95, 1.0, speedLines);
+    speedLines *= subBass * 0.5;
+    tunnelColor += neonCyan * speedLines;
+
+    return float4(tunnelColor, 1.0);
+}
@@ -0,0 +1,20 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "1.000",
+          "green" : "0.000",
+          "red" : "1.000"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,58 @@
+{
+  "images" : [
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "512x512"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "512x512"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(MARKETING_VERSION)</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>LSApplicationCategoryType</key>
+	<string>public.app-category.music</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2024. All rights reserved.</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>Psytrance Visualizer needs access to your audio input to visualize music in real-time. You can use a virtual audio device like BlackHole to route system audio.</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>NSHighResolutionCapable</key>
+	<true/>
+	<key>NSSupportsAutomaticGraphicsSwitching</key>
+	<true/>
+</dict>
+</plist>
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.device.audio-input</key>
+	<true/>
+	<key>com.apple.security.files.user-selected.read-write</key>
+	<true/>
+</dict>
+</plist>
@@ -0,0 +1,315 @@
+//
+//  ControlPanel.swift
+//  PsytranceVisualizer
+//
+//  Auto-hiding control panel with audio and visualization settings
+//
+
+import AppKit
+import Combine
+
+/// Delegate protocol for control panel actions
+protocol ControlPanelDelegate: AnyObject {
+    func controlPanel(_ panel: ControlPanel, didSelectDevice uid: String)
+    func controlPanel(_ panel: ControlPanel, didSelectBufferSize size: Int)
+    func controlPanel(_ panel: ControlPanel, didSelectMode mode: VisualizationMode)
+    func controlPanel(_ panel: ControlPanel, didChangeReactivity value: Float)
+    func controlPanelDidRequestFullscreen(_ panel: ControlPanel)
+}
+
+/// Auto-hiding control panel overlay
+final class ControlPanel: NSView {
+    // MARK: - Properties
+
+    weak var delegate: ControlPanelDelegate?
+
+    private var isVisible = true
+    private var hideTimer: Timer?
+    private let hideDelay: TimeInterval = 3.0
+
+    private var audioDevices: [AudioDevice] = []
+    private var selectedMode: VisualizationMode = .fftClassic
+
+    // MARK: - UI Elements
+
+    private let containerView = NSVisualEffectView()
+    private let devicePopup = NSPopUpButton()
+    private let bufferSizePopup = NSPopUpButton()
+    private let modeSegment = NSSegmentedControl()
+    private let reactivitySlider = NSSlider()
+    private let reactivityLabel = NSTextField(labelWithString: "Reactivity")
+    private let fullscreenButton = NSButton()
+
+    // MARK: - Layout Constants
+
+    private let panelHeight: CGFloat = 60
+    private let padding: CGFloat = 12
+    private let elementHeight: CGFloat = 24
+
+    // MARK: - Initialization
+
+    override init(frame frameRect: NSRect) {
+        super.init(frame: frameRect)
+        setupUI()
+        setupConstraints()
+        startHideTimer()
+    }
+
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    // MARK: - Setup
+
+    private func setupUI() {
+        // Container with vibrancy effect
+        containerView.material = .hudWindow
+        containerView.blendingMode = .behindWindow
+        containerView.state = .active
+        containerView.wantsLayer = true
+        containerView.layer?.cornerRadius = 12
+        containerView.layer?.masksToBounds = true
+        addSubview(containerView)
+
+        // Device popup
+        devicePopup.target = self
+        devicePopup.action = #selector(deviceChanged)
+        devicePopup.controlSize = .small
+        devicePopup.font = .systemFont(ofSize: 11)
+        containerView.addSubview(devicePopup)
+
+        // Buffer size popup
+        bufferSizePopup.target = self
+        bufferSizePopup.action = #selector(bufferSizeChanged)
+        bufferSizePopup.controlSize = .small
+        bufferSizePopup.font = .systemFont(ofSize: 11)
+        bufferSizePopup.addItems(withTitles: ["512", "1024"])
+        bufferSizePopup.selectItem(withTitle: "1024")
+        containerView.addSubview(bufferSizePopup)
+
+        // Mode segment control
+        modeSegment.segmentCount = 8
+        for mode in VisualizationMode.allCases {
+            modeSegment.setLabel(mode.shortcut, forSegment: mode.rawValue - 1)
+            modeSegment.setToolTip(mode.displayName, forSegment: mode.rawValue - 1)
+        }
+        modeSegment.selectedSegment = 0
+        modeSegment.target = self
+        modeSegment.action = #selector(modeChanged)
+        modeSegment.controlSize = .small
+        modeSegment.segmentStyle = .capsule
+        containerView.addSubview(modeSegment)
+
+        // Reactivity label
+        reactivityLabel.font = .systemFont(ofSize: 10)
+        reactivityLabel.textColor = .secondaryLabelColor
+        containerView.addSubview(reactivityLabel)
+
+        // Reactivity slider
+        reactivitySlider.minValue = 0.0
+        reactivitySlider.maxValue = 1.0
+        reactivitySlider.doubleValue = 0.5
+        reactivitySlider.target = self
+        reactivitySlider.action = #selector(reactivityChanged)
+        reactivitySlider.controlSize = .small
+        containerView.addSubview(reactivitySlider)
+
+        // Fullscreen button
+        fullscreenButton.title = "⛶"
+        fullscreenButton.bezelStyle = .accessoryBarAction
+        fullscreenButton.target = self
+        fullscreenButton.action = #selector(fullscreenClicked)
+        fullscreenButton.toolTip = "Toggle Fullscreen (F)"
+        containerView.addSubview(fullscreenButton)
+
+        // Set colors
+        applyPsytranceTheme()
+    }
+
+    private func applyPsytranceTheme() {
+        // Custom appearance for psytrance aesthetic
+        containerView.appearance = NSAppearance(named: .darkAqua)
+    }
+
+    private func setupConstraints() {
+        containerView.translatesAutoresizingMaskIntoConstraints = false
+        devicePopup.translatesAutoresizingMaskIntoConstraints = false
+        bufferSizePopup.translatesAutoresizingMaskIntoConstraints = false
+        modeSegment.translatesAutoresizingMaskIntoConstraints = false
+        reactivityLabel.translatesAutoresizingMaskIntoConstraints = false
+        reactivitySlider.translatesAutoresizingMaskIntoConstraints = false
+        fullscreenButton.translatesAutoresizingMaskIntoConstraints = false
+
+        NSLayoutConstraint.activate([
+            // Container
+            containerView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: padding),
+            containerView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -padding),
+            containerView.bottomAnchor.constraint(equalTo: bottomAnchor, constant: -padding),
+            containerView.heightAnchor.constraint(equalToConstant: panelHeight),
+
+            // Device popup
+            devicePopup.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: padding),
+            devicePopup.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
+            devicePopup.widthAnchor.constraint(equalToConstant: 150),
+
+            // Buffer size popup
+            bufferSizePopup.leadingAnchor.constraint(equalTo: devicePopup.trailingAnchor, constant: 8),
+            bufferSizePopup.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
+            bufferSizePopup.widthAnchor.constraint(equalToConstant: 60),
+
+            // Mode segment
+            modeSegment.centerXAnchor.constraint(equalTo: containerView.centerXAnchor),
+            modeSegment.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
+
+            // Reactivity label
+            reactivityLabel.trailingAnchor.constraint(equalTo: reactivitySlider.leadingAnchor, constant: -4),
+            reactivityLabel.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
+
+            // Reactivity slider
+            reactivitySlider.trailingAnchor.constraint(equalTo: fullscreenButton.leadingAnchor, constant: -padding),
+            reactivitySlider.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
+            reactivitySlider.widthAnchor.constraint(equalToConstant: 80),
+
+            // Fullscreen button
+            fullscreenButton.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -padding),
+            fullscreenButton.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
+        ])
+    }
+
+    // MARK: - Public Methods
+
+    /// Updates the list of available audio devices
+    func updateDevices(_ devices: [AudioDevice], selectedUID: String?) {
+        audioDevices = devices
+        devicePopup.removeAllItems()
+
+        for device in devices {
+            devicePopup.addItem(withTitle: device.name)
+            devicePopup.lastItem?.representedObject = device.uid
+        }
+
+        if let uid = selectedUID,
+           let index = devices.firstIndex(where: { $0.uid == uid }) {
+            devicePopup.selectItem(at: index)
+        }
+    }
+
+    /// Updates the selected buffer size
+    func updateBufferSize(_ size: Int) {
+        bufferSizePopup.selectItem(withTitle: "\(size)")
+    }
+
+    /// Updates the selected visualization mode
+    func updateMode(_ mode: VisualizationMode) {
+        selectedMode = mode
+        modeSegment.selectedSegment = mode.rawValue - 1
+    }
+
+    /// Updates the reactivity slider
+    func updateReactivity(_ value: Float) {
+        reactivitySlider.doubleValue = Double(value)
+    }
+
+    /// Shows the control panel
+    func show(animated: Bool = true) {
+        guard !isVisible else { return }
+        isVisible = true
+
+        if animated {
+            NSAnimationContext.runAnimationGroup { context in
+                context.duration = 0.3
+                self.animator().alphaValue = 1.0
+            }
+        } else {
+            alphaValue = 1.0
+        }
+
+        startHideTimer()
+    }
+
+    /// Hides the control panel
+    func hide(animated: Bool = true) {
+        guard isVisible else { return }
+        isVisible = false
+        hideTimer?.invalidate()
+
+        if animated {
+            NSAnimationContext.runAnimationGroup { context in
+                context.duration = 0.3
+                self.animator().alphaValue = 0.0
+            }
+        } else {
+            alphaValue = 0.0
+        }
+    }
+
+    /// Resets the hide timer (call on mouse movement)
+    func resetHideTimer() {
+        show()
+        startHideTimer()
+    }
+
+    // MARK: - Private Methods
+
+    private func startHideTimer() {
+        hideTimer?.invalidate()
+        hideTimer = Timer.scheduledTimer(withTimeInterval: hideDelay, repeats: false) { [weak self] _ in
+            self?.hide()
+        }
+    }
+
+    // MARK: - Actions
+
+    @objc private func deviceChanged() {
+        guard let uid = devicePopup.selectedItem?.representedObject as? String else { return }
+        delegate?.controlPanel(self, didSelectDevice: uid)
+    }
+
+    @objc private func bufferSizeChanged() {
+        guard let title = bufferSizePopup.selectedItem?.title,
+              let size = Int(title) else { return }
+        delegate?.controlPanel(self, didSelectBufferSize: size)
+    }
+
+    @objc private func modeChanged() {
+        let modeIndex = modeSegment.selectedSegment + 1
+        guard let mode = VisualizationMode(rawValue: modeIndex) else { return }
+        selectedMode = mode
+        delegate?.controlPanel(self, didSelectMode: mode)
+    }
+
+    @objc private func reactivityChanged() {
+        let value = Float(reactivitySlider.doubleValue)
+        delegate?.controlPanel(self, didChangeReactivity: value)
+    }
+
+    @objc private func fullscreenClicked() {
+        delegate?.controlPanelDidRequestFullscreen(self)
+    }
+
+    // MARK: - Mouse Tracking
+
+    override func updateTrackingAreas() {
+        super.updateTrackingAreas()
+
+        // Remove existing tracking areas
+        for area in trackingAreas {
+            removeTrackingArea(area)
+        }
+
+        // Add new tracking area
+        let options: NSTrackingArea.Options = [.mouseEnteredAndExited, .mouseMoved, .activeAlways]
+        let trackingArea = NSTrackingArea(rect: bounds, options: options, owner: self, userInfo: nil)
+        addTrackingArea(trackingArea)
+    }
+
+    override func mouseMoved(with event: NSEvent) {
+        super.mouseMoved(with: event)
+        resetHideTimer()
+    }
+
+    override func mouseEntered(with event: NSEvent) {
+        super.mouseEntered(with: event)
+        show()
+    }
+}
@@ -0,0 +1,323 @@
+//
+//  MainWindow.swift
+//  PsytranceVisualizer
+//
+//  Main application window with keyboard handling
+//
+
+import AppKit
+import Combine
+
+/// Main window controller for the visualizer
+final class MainWindowController: NSWindowController {
+    // MARK: - Properties
+
+    private var visualizerView: VisualizerView!
+    private var controlPanel: ControlPanel!
+
+    private var audioManager: AudioInputManager!
+    private var dspEngine: DSPEngine!
+    private var settingsManager: SettingsManager { .shared }
+
+    private var cancellables = Set<AnyCancellable>()
+    private var displayLink: CVDisplayLink?
+
+    // MARK: - Initialization
+
+    convenience init() {
+        let window = NSWindow(
+            contentRect: NSRect(x: 0, y: 0, width: 1280, height: 720),
+            styleMask: [.titled, .closable, .miniaturizable, .resizable, .fullSizeContentView],
+            backing: .buffered,
+            defer: false
+        )
+
+        window.title = "Psytrance Visualizer"
+        window.minSize = NSSize(width: 800, height: 600)
+        window.titlebarAppearsTransparent = true
+        window.titleVisibility = .hidden
+        window.isMovableByWindowBackground = true
+        window.backgroundColor = .black
+        window.collectionBehavior = [.fullScreenPrimary]
+
+        // Restore window frame if saved
+        if let savedFrame = SettingsManager.shared.settings.windowFrame?.cgRect {
+            window.setFrame(savedFrame, display: false)
+        } else {
+            window.center()
+        }
+
+        self.init(window: window)
+
+        setupContent()
+        setupAudio()
+        setupKeyboardHandling()
+        restoreSettings()
+    }
+
+    // MARK: - Setup
+
+    private func setupContent() {
+        guard let contentView = window?.contentView else { return }
+
+        // Visualizer view (fills entire window)
+        visualizerView = VisualizerView()
+        visualizerView.translatesAutoresizingMaskIntoConstraints = false
+        contentView.addSubview(visualizerView)
+
+        // Control panel (overlay at bottom)
+        controlPanel = ControlPanel()
+        controlPanel.translatesAutoresizingMaskIntoConstraints = false
+        controlPanel.delegate = self
+        contentView.addSubview(controlPanel)
+
+        NSLayoutConstraint.activate([
+            // Visualizer fills entire window
+            visualizerView.topAnchor.constraint(equalTo: contentView.topAnchor),
+            visualizerView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
+            visualizerView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
+            visualizerView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
+
+            // Control panel at bottom
+            controlPanel.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
+            controlPanel.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
+            controlPanel.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
+            controlPanel.heightAnchor.constraint(equalToConstant: 90),
+        ])
+
+        // Mouse tracking for control panel
+        setupMouseTracking()
+    }
+
+    private func setupAudio() {
+        audioManager = AudioInputManager()
+        dspEngine = DSPEngine(bufferSize: settingsManager.settings.bufferSize)
+
+        // Audio buffer callback
+        audioManager.onAudioBuffer = { [weak self] buffer in
+            guard let self = self else { return }
+            let analysisData = self.dspEngine.process(buffer: buffer)
+
+            DispatchQueue.main.async {
+                self.visualizerView.updateAudioData(analysisData)
+            }
+        }
+
+        // Update control panel when devices change
+        audioManager.$availableDevices
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] devices in
+                self?.controlPanel.updateDevices(
+                    devices,
+                    selectedUID: self?.settingsManager.settings.selectedAudioDeviceUID
+                )
+            }
+            .store(in: &cancellables)
+
+        // Start audio
+        audioManager.start()
+    }
+
+    private func setupKeyboardHandling() {
+        // Monitor for key events
+        NSEvent.addLocalMonitorForEvents(matching: .keyDown) { [weak self] event in
+            if self?.handleKeyDown(event) == true {
+                return nil // Event handled
+            }
+            return event
+        }
+    }
+
+    private func setupMouseTracking() {
+        guard let contentView = window?.contentView else { return }
+
+        let options: NSTrackingArea.Options = [.mouseMoved, .activeAlways, .inVisibleRect]
+        let trackingArea = NSTrackingArea(
+            rect: contentView.bounds,
+            options: options,
+            owner: self,
+            userInfo: nil
+        )
+        contentView.addTrackingArea(trackingArea)
+    }
+
+    private func restoreSettings() {
+        let settings = settingsManager.settings
+
+        // Restore visualization mode
+        if let mode = VisualizationMode(rawValue: settings.lastVisualizationMode) {
+            visualizerView.setVisualizationMode(mode)
+            controlPanel.updateMode(mode)
+        }
+
+        // Restore reactivity
+        visualizerView.setReactivity(settings.reactivity)
+        dspEngine.setReactivity(settings.reactivity)
+        controlPanel.updateReactivity(settings.reactivity)
+
+        // Restore buffer size
+        dspEngine.setBufferSize(settings.bufferSize)
+        audioManager.setBufferSize(settings.bufferSize)
+        controlPanel.updateBufferSize(settings.bufferSize)
+
+        // Restore audio device
+        if let deviceUID = settings.selectedAudioDeviceUID {
+            audioManager.selectDevice(uid: deviceUID)
+        }
+
+        // Restore fullscreen state
+        if settings.isFullscreen {
+            DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
+                self?.window?.toggleFullScreen(nil)
+            }
+        }
+    }
+
+    // MARK: - Keyboard Handling
+
+    private func handleKeyDown(_ event: NSEvent) -> Bool {
+        // Check for visualization mode shortcuts (1-8)
+        if let mode = VisualizationMode.fromKeyCode(event.keyCode) {
+            setVisualizationMode(mode)
+            return true
+        }
+
+        // Other keyboard shortcuts
+        switch event.keyCode {
+        case 3: // F key
+            toggleFullscreen()
+            return true
+        case 53: // Escape
+            if window?.styleMask.contains(.fullScreen) == true {
+                window?.toggleFullScreen(nil)
+            }
+            return true
+        case 49: // Space
+            // Toggle pause (could be implemented)
+            return true
+        default:
+            break
+        }
+
+        // Cmd+F for fullscreen
+        if event.modifierFlags.contains(.command) && event.keyCode == 3 {
+            toggleFullscreen()
+            return true
+        }
+
+        return false
+    }
+
+    // MARK: - Mode Switching
+
+    private func setVisualizationMode(_ mode: VisualizationMode) {
+        visualizerView.setVisualizationMode(mode)
+        controlPanel.updateMode(mode)
+        settingsManager.setVisualizationMode(mode)
+    }
+
+    // MARK: - Fullscreen
+
+    private func toggleFullscreen() {
+        window?.toggleFullScreen(nil)
+    }
+
+    // MARK: - Mouse Events
+
+    override func mouseMoved(with event: NSEvent) {
+        controlPanel.resetHideTimer()
+    }
+
+    // MARK: - Window Events
+
+    override func windowDidLoad() {
+        super.windowDidLoad()
+
+        // Save window frame on move/resize
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(windowDidResize),
+            name: NSWindow.didResizeNotification,
+            object: window
+        )
+
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(windowDidMove),
+            name: NSWindow.didMoveNotification,
+            object: window
+        )
+
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(windowDidEnterFullScreen),
+            name: NSWindow.didEnterFullScreenNotification,
+            object: window
+        )
+
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(windowDidExitFullScreen),
+            name: NSWindow.didExitFullScreenNotification,
+            object: window
+        )
+    }
+
+    @objc private func windowDidResize(_ notification: Notification) {
+        if let frame = window?.frame {
+            settingsManager.setWindowFrame(frame)
+        }
+    }
+
+    @objc private func windowDidMove(_ notification: Notification) {
+        if let frame = window?.frame {
+            settingsManager.setWindowFrame(frame)
+        }
+    }
+
+    @objc private func windowDidEnterFullScreen(_ notification: Notification) {
+        settingsManager.setFullscreen(true)
+        controlPanel.hide()
+    }
+
+    @objc private func windowDidExitFullScreen(_ notification: Notification) {
+        settingsManager.setFullscreen(false)
+        controlPanel.show()
+    }
+
+    // MARK: - Cleanup
+
+    deinit {
+        audioManager.stop()
+        settingsManager.saveNow()
+    }
+}
+
+// MARK: - ControlPanelDelegate
+
+extension MainWindowController: ControlPanelDelegate {
+    func controlPanel(_ panel: ControlPanel, didSelectDevice uid: String) {
+        audioManager.selectDevice(uid: uid)
+        settingsManager.setAudioDevice(uid: uid)
+    }
+
+    func controlPanel(_ panel: ControlPanel, didSelectBufferSize size: Int) {
+        audioManager.setBufferSize(size)
+        dspEngine.setBufferSize(size)
+        settingsManager.setBufferSize(size)
+    }
+
+    func controlPanel(_ panel: ControlPanel, didSelectMode mode: VisualizationMode) {
+        setVisualizationMode(mode)
+    }
+
+    func controlPanel(_ panel: ControlPanel, didChangeReactivity value: Float) {
+        visualizerView.setReactivity(value)
+        dspEngine.setReactivity(value)
+        settingsManager.setReactivity(value)
+    }
+
+    func controlPanelDidRequestFullscreen(_ panel: ControlPanel) {
+        toggleFullscreen()
+    }
+}
@@ -0,0 +1,122 @@
+//
+//  VisualizerView.swift
+//  PsytranceVisualizer
+//
+//  MTKView subclass for rendering visualizations
+//
+
+import MetalKit
+import Combine
+
+/// MTKView subclass that displays audio-reactive visualizations
+final class VisualizerView: MTKView {
+    // MARK: - Properties
+
+    private var renderer: MetalRenderer?
+    private var cancellables = Set<AnyCancellable>()
+
+    // MARK: - Initialization
+
+    init() {
+        // Get default Metal device
+        guard let device = MTLCreateSystemDefaultDevice() else {
+            fatalError("Metal is not supported on this device")
+        }
+
+        super.init(frame: .zero, device: device)
+
+        configure()
+        setupRenderer()
+    }
+
+    required init(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    // MARK: - Configuration
+
+    private func configure() {
+        // Background color
+        clearColor = MTLClearColor(red: 0, green: 0, blue: 0, alpha: 1)
+
+        // Color format
+        colorPixelFormat = .bgra8Unorm
+
+        // Enable display link for smooth rendering
+        isPaused = false
+        enableSetNeedsDisplay = false
+
+        // Use display refresh rate
+        preferredFramesPerSecond = 120 // Will cap to display refresh
+
+        // Layer configuration
+        layer?.isOpaque = true
+
+        // Allow high DPI
+        layer?.contentsScale = NSScreen.main?.backingScaleFactor ?? 2.0
+    }
+
+    private func setupRenderer() {
+        guard let device = device else { return }
+
+        renderer = MetalRenderer(device: device)
+        delegate = renderer
+
+        // Initial size update
+        if let renderer = renderer {
+            let size = drawableSize
+            renderer.mtkView(self, drawableSizeWillChange: size)
+        }
+    }
+
+    // MARK: - Public Methods
+
+    /// Returns the Metal renderer
+    func getRenderer() -> MetalRenderer? {
+        return renderer
+    }
+
+    /// Updates audio data for visualization
+    func updateAudioData(_ data: AudioAnalysisData) {
+        renderer?.updateAudioData(data)
+    }
+
+    /// Sets the visualization mode
+    func setVisualizationMode(_ mode: VisualizationMode) {
+        renderer?.setVisualizationMode(mode)
+    }
+
+    /// Sets reactivity value
+    func setReactivity(_ value: Float) {
+        renderer?.setReactivity(value)
+    }
+
+    /// Gets current visualization mode
+    var currentMode: VisualizationMode {
+        renderer?.currentMode ?? .fftClassic
+    }
+}
+
+// MARK: - SwiftUI Bridge
+
+#if canImport(SwiftUI)
+import SwiftUI
+
+/// SwiftUI wrapper for VisualizerView
+struct VisualizerViewRepresentable: NSViewRepresentable {
+    @Binding var audioData: AudioAnalysisData
+    @Binding var mode: VisualizationMode
+    @Binding var reactivity: Float
+
+    func makeNSView(context: Context) -> VisualizerView {
+        let view = VisualizerView()
+        return view
+    }
+
+    func updateNSView(_ nsView: VisualizerView, context: Context) {
+        nsView.updateAudioData(audioData)
+        nsView.setVisualizationMode(mode)
+        nsView.setReactivity(reactivity)
+    }
+}
+#endif
@@ -0,0 +1,140 @@
+//
+//  ColorPalette.swift
+//  PsytranceVisualizer
+//
+//  Psytrance color palette for UI and shaders
+//
+
+import AppKit
+import simd
+
+/// Psytrance-inspired neon/UV color palette
+struct PsytranceColors {
+    // MARK: - Primary Colors (NSColor for UI)
+
+    /// Neon Magenta - Primary accent color
+    static let neonMagenta = NSColor(red: 1.0, green: 0.0, blue: 1.0, alpha: 1.0)
+
+    /// Neon Cyan - Secondary accent color
+    static let neonCyan = NSColor(red: 0.0, green: 1.0, blue: 1.0, alpha: 1.0)
+
+    /// Neon Green - High energy accents
+    static let neonGreen = NSColor(red: 0.224, green: 1.0, blue: 0.078, alpha: 1.0)
+
+    /// UV Violet - Deep purple for backgrounds
+    static let uvViolet = NSColor(red: 0.482, green: 0.0, blue: 1.0, alpha: 1.0)
+
+    /// Deep Black - Background color
+    static let background = NSColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0)
+
+    /// Dark Purple - Alternative background
+    static let darkPurple = NSColor(red: 0.1, green: 0.0, blue: 0.15, alpha: 1.0)
+
+    /// Hot Pink - Peak indicators
+    static let hotPink = NSColor(red: 1.0, green: 0.2, blue: 0.6, alpha: 1.0)
+
+    /// Electric Blue - UI elements
+    static let electricBlue = NSColor(red: 0.0, green: 0.5, blue: 1.0, alpha: 1.0)
+
+    // MARK: - SIMD3<Float> Colors (for Metal shaders)
+
+    struct Metal {
+        static let neonMagenta = SIMD3<Float>(1.0, 0.0, 1.0)
+        static let neonCyan = SIMD3<Float>(0.0, 1.0, 1.0)
+        static let neonGreen = SIMD3<Float>(0.224, 1.0, 0.078)
+        static let uvViolet = SIMD3<Float>(0.482, 0.0, 1.0)
+        static let background = SIMD3<Float>(0.0, 0.0, 0.0)
+        static let darkPurple = SIMD3<Float>(0.1, 0.0, 0.15)
+        static let hotPink = SIMD3<Float>(1.0, 0.2, 0.6)
+        static let electricBlue = SIMD3<Float>(0.0, 0.5, 1.0)
+
+        /// Array of all palette colors for cycling
+        static let palette: [SIMD3<Float>] = [
+            neonMagenta,
+            neonCyan,
+            neonGreen,
+            uvViolet,
+            hotPink,
+            electricBlue
+        ]
+
+        /// Get color from palette by index (wraps around)
+        static func color(at index: Int) -> SIMD3<Float> {
+            palette[index % palette.count]
+        }
+
+        /// Interpolate between two colors
+        static func lerp(_ a: SIMD3<Float>, _ b: SIMD3<Float>, t: Float) -> SIMD3<Float> {
+            a + (b - a) * t
+        }
+
+        /// Get rainbow color from normalized value (0-1)
+        static func rainbow(_ t: Float) -> SIMD3<Float> {
+            let index = Int(t * Float(palette.count))
+            let nextIndex = (index + 1) % palette.count
+            let localT = (t * Float(palette.count)) - Float(index)
+            return lerp(palette[index % palette.count], palette[nextIndex], t: localT)
+        }
+    }
+
+    // MARK: - Gradient Helpers
+
+    /// Creates a gradient from UV Violet through Magenta to Cyan
+    static var spectrumGradient: NSGradient? {
+        NSGradient(colors: [uvViolet, neonMagenta, hotPink, neonCyan, neonGreen])
+    }
+
+    /// Creates a gradient for heat maps (low to high energy)
+    static var heatmapGradient: NSGradient? {
+        NSGradient(colors: [
+            NSColor(red: 0.1, green: 0.0, blue: 0.2, alpha: 1.0),  // Dark purple (low)
+            uvViolet,
+            neonMagenta,
+            hotPink,
+            neonCyan,
+            neonGreen,
+            NSColor.white  // White (peak)
+        ])
+    }
+
+    // MARK: - UI Theme Colors
+
+    struct UI {
+        static let panelBackground = NSColor(red: 0.05, green: 0.02, blue: 0.08, alpha: 0.9)
+        static let buttonBackground = NSColor(red: 0.15, green: 0.05, blue: 0.2, alpha: 1.0)
+        static let buttonHighlight = neonMagenta.withAlphaComponent(0.8)
+        static let sliderTint = neonCyan
+        static let labelText = NSColor.white
+        static let secondaryText = NSColor(white: 0.7, alpha: 1.0)
+        static let border = uvViolet.withAlphaComponent(0.5)
+    }
+}
+
+// MARK: - NSColor Extension
+
+extension NSColor {
+    /// Converts NSColor to SIMD3<Float> for Metal
+    var simd3: SIMD3<Float> {
+        guard let rgb = usingColorSpace(.deviceRGB) else {
+            return SIMD3<Float>(0, 0, 0)
+        }
+        return SIMD3<Float>(
+            Float(rgb.redComponent),
+            Float(rgb.greenComponent),
+            Float(rgb.blueComponent)
+        )
+    }
+
+    /// Converts NSColor to SIMD4<Float> for Metal (with alpha)
+    var simd4: SIMD4<Float> {
+        guard let rgb = usingColorSpace(.deviceRGB) else {
+            return SIMD4<Float>(0, 0, 0, 1)
+        }
+        return SIMD4<Float>(
+            Float(rgb.redComponent),
+            Float(rgb.greenComponent),
+            Float(rgb.blueComponent),
+            Float(rgb.alphaComponent)
+        )
+    }
+}
@@ -0,0 +1,185 @@
+//
+//  SettingsManager.swift
+//  PsytranceVisualizer
+//
+//  Handles loading and saving of application settings
+//
+
+import Foundation
+import Combine
+
+/// Manages persistent storage and retrieval of application settings
+final class SettingsManager: ObservableObject {
+    // MARK: - Singleton
+
+    static let shared = SettingsManager()
+
+    // MARK: - Published Properties
+
+    @Published private(set) var settings: AppSettings
+
+    // MARK: - Private Properties
+
+    private let settingsKey = "PsytranceVisualizerSettings"
+    private let fileManager = FileManager.default
+    private var saveWorkItem: DispatchWorkItem?
+
+    // MARK: - Initialization
+
+    private init() {
+        self.settings = SettingsManager.loadSettings()
+    }
+
+    // MARK: - Public Methods
+
+    /// Updates settings and triggers auto-save
+    func updateSettings(_ update: (inout AppSettings) -> Void) {
+        update(&settings)
+        settings.validate()
+        scheduleSave()
+    }
+
+    /// Updates selected audio device
+    func setAudioDevice(uid: String?) {
+        updateSettings { $0.selectedAudioDeviceUID = uid }
+    }
+
+    /// Updates buffer size
+    func setBufferSize(_ size: Int) {
+        guard AppSettings.availableBufferSizes.contains(size) else { return }
+        updateSettings { $0.bufferSize = size }
+    }
+
+    /// Updates visualization mode
+    func setVisualizationMode(_ mode: VisualizationMode) {
+        updateSettings { $0.lastVisualizationMode = mode.rawValue }
+    }
+
+    /// Updates reactivity
+    func setReactivity(_ value: Float) {
+        updateSettings { $0.reactivity = max(0.0, min(1.0, value)) }
+    }
+
+    /// Updates fullscreen state
+    func setFullscreen(_ isFullscreen: Bool) {
+        updateSettings { $0.isFullscreen = isFullscreen }
+    }
+
+    /// Updates window frame
+    func setWindowFrame(_ frame: CGRect) {
+        updateSettings { $0.windowFrame = CodableRect(from: frame) }
+    }
+
+    /// Updates input gain
+    func setInputGain(_ gain: Float) {
+        updateSettings { $0.inputGain = max(0.0, min(2.0, gain)) }
+    }
+
+    /// Updates FPS display setting
+    func setShowFPS(_ show: Bool) {
+        updateSettings { $0.showFPS = show }
+    }
+
+    /// Forces immediate save
+    func saveNow() {
+        saveWorkItem?.cancel()
+        performSave()
+    }
+
+    /// Resets to default settings
+    func resetToDefaults() {
+        settings = .default
+        saveNow()
+    }
+
+    // MARK: - Private Methods
+
+    /// Schedules a debounced save operation
+    private func scheduleSave() {
+        saveWorkItem?.cancel()
+
+        let workItem = DispatchWorkItem { [weak self] in
+            self?.performSave()
+        }
+
+        saveWorkItem = workItem
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5, execute: workItem)
+    }
+
+    /// Performs the actual save operation
+    private func performSave() {
+        do {
+            let encoder = JSONEncoder()
+            encoder.outputFormatting = .prettyPrinted
+            let data = try encoder.encode(settings)
+
+            // Save to UserDefaults
+            UserDefaults.standard.set(data, forKey: settingsKey)
+
+            // Also save to file for backup
+            if let url = settingsFileURL {
+                try data.write(to: url)
+            }
+
+            print("[SettingsManager] Settings saved successfully")
+        } catch {
+            print("[SettingsManager] Failed to save settings: \(error)")
+        }
+    }
+
+    /// Loads settings from storage
+    private static func loadSettings() -> AppSettings {
+        // Try UserDefaults first
+        if let data = UserDefaults.standard.data(forKey: "PsytranceVisualizerSettings") {
+            do {
+                var settings = try JSONDecoder().decode(AppSettings.self, from: data)
+                settings.validate()
+                print("[SettingsManager] Settings loaded from UserDefaults")
+                return settings
+            } catch {
+                print("[SettingsManager] Failed to decode settings from UserDefaults: \(error)")
+            }
+        }
+
+        // Try file backup
+        if let url = settingsFileURL,
+           let data = try? Data(contentsOf: url) {
+            do {
+                var settings = try JSONDecoder().decode(AppSettings.self, from: data)
+                settings.validate()
+                print("[SettingsManager] Settings loaded from file")
+                return settings
+            } catch {
+                print("[SettingsManager] Failed to decode settings from file: \(error)")
+            }
+        }
+
+        print("[SettingsManager] Using default settings")
+        return .default
+    }
+
+    /// URL for settings file backup
+    private static var settingsFileURL: URL? {
+        guard let appSupport = FileManager.default.urls(
+            for: .applicationSupportDirectory,
+            in: .userDomainMask
+        ).first else {
+            return nil
+        }
+
+        let appDirectory = appSupport.appendingPathComponent("PsytranceVisualizer")
+
+        // Create directory if needed
+        try? FileManager.default.createDirectory(
+            at: appDirectory,
+            withIntermediateDirectories: true
+        )
+
+        return appDirectory.appendingPathComponent("settings.json")
+    }
+
+    /// Current visualization mode
+    var currentVisualizationMode: VisualizationMode {
+        VisualizationMode(rawValue: settings.lastVisualizationMode) ?? .fftClassic
+    }
+}
@@ -14,6 +14,10 @@ class AppDelegate: UIResponder, UIApplicationDelegate {

    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        #if targetEnvironment(macCatalyst)
+        // Configure for macOS
+        configureMacOS()
+        #endif
        return true
    }

@@ -33,10 +37,60 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
    func applicationDidBecomeActive(_ application: UIApplication) {
        // Resume game if needed
    }
+
+    #if targetEnvironment(macCatalyst)
+    // MARK: - macOS Configuration
+    private func configureMacOS() {
+        // Set minimum window size for macOS
+        UIApplication.shared.connectedScenes.compactMap { $0 as? UIWindowScene }.forEach { windowScene in
+            windowScene.sizeRestrictions?.minimumSize = CGSize(width: 400, height: 600)
+            windowScene.sizeRestrictions?.maximumSize = CGSize(width: 600, height: 900)
+        }
+    }
+
+    override func buildMenu(with builder: UIMenuBuilder) {
+        super.buildMenu(with: builder)
+
+        // Remove unnecessary menus for a game
+        builder.remove(menu: .format)
+        builder.remove(menu: .edit)
+
+        // Add Game menu
+        let pauseCommand = UIKeyCommand(
+            title: "Pause",
+            action: #selector(handlePauseCommand),
+            input: "p",
+            modifierFlags: .command
+        )
+
+        let restartCommand = UIKeyCommand(
+            title: "Neustart",
+            action: #selector(handleRestartCommand),
+            input: "r",
+            modifierFlags: .command
+        )
+
+        let gameMenu = UIMenu(
+            title: "Spiel",
+            children: [pauseCommand, restartCommand]
+        )
+
+        builder.insertSibling(gameMenu, afterMenu: .file)
+    }
+
+    @objc private func handlePauseCommand() {
+        NotificationCenter.default.post(name: .pauseGame, object: nil)
+    }
+
+    @objc private func handleRestartCommand() {
+        NotificationCenter.default.post(name: .restartGame, object: nil)
+    }
+    #endif
 }

 // MARK: - Notification Names
 extension Notification.Name {
    static let pauseGame = Notification.Name("pauseGame")
    static let resumeGame = Notification.Name("resumeGame")
+    static let restartGame = Notification.Name("restartGame")
 }
@@ -36,6 +36,10 @@ class GameViewController: UIViewController {

        // Setup notification observers
        setupNotificationObservers()
+
+        #if targetEnvironment(macCatalyst)
+        setupMacCatalyst()
+        #endif
    }

    private func setupNotificationObservers() {
@@ -45,6 +49,13 @@ class GameViewController: UIViewController {
            name: .pauseGame,
            object: nil
        )
+
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(handleRestartNotification),
+            name: .restartGame,
+            object: nil
+        )
    }

    @objc private func handlePauseNotification() {
@@ -57,12 +68,46 @@ class GameViewController: UIViewController {
        // This is just a notification that the app is going to background
    }

+    @objc private func handleRestartNotification() {
+        guard let skView = self.view as? SKView else { return }
+
+        let menuScene = MenuScene(size: skView.bounds.size)
+        menuScene.scaleMode = .aspectFill
+
+        let transition = SKTransition.fade(withDuration: 0.5)
+        skView.presentScene(menuScene, transition: transition)
+    }
+
+    #if targetEnvironment(macCatalyst)
+    private func setupMacCatalyst() {
+        // Configure window appearance for macOS
+        if let windowScene = view.window?.windowScene {
+            windowScene.title = "Rollkoffer Simulator"
+
+            // Set window style
+            if let titlebar = windowScene.titlebar {
+                titlebar.titleVisibility = .visible
+                titlebar.toolbarStyle = .unified
+            }
+        }
+    }
+
+    // Enable keyboard input
+    override var canBecomeFirstResponder: Bool {
+        return true
+    }
+    #endif
+
    override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
+        #if targetEnvironment(macCatalyst)
+        return .all
+        #else
        if UIDevice.current.userInterfaceIdiom == .phone {
            return .portrait
        } else {
            return .all
        }
+        #endif
    }

    override var prefersStatusBarHidden: Bool {
@@ -50,5 +50,9 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
+	<key>LSMinimumSystemVersion</key>
+	<string>13.0</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright 2024 Ingo K. All rights reserved.</string>
 </dict>
 </plist>
@@ -381,6 +381,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DERIVE_MACCATALYST_PRODUCT_BUNDLE_IDENTIFIER = YES;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Info.plist;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
@@ -393,9 +394,12 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.ingok.RollkofferSimulator;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SUPPORTS_MACCATALYST = YES;
+				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -409,6 +413,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DERIVE_MACCATALYST_PRODUCT_BUNDLE_IDENTIFIER = YES;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Info.plist;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
@@ -421,9 +426,12 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.ingok.RollkofferSimulator;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SUPPORTS_MACCATALYST = YES;
+				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -223,6 +223,27 @@ class GameOverScene: SKScene {
        }
    }

+    // MARK: - Keyboard Handling (macOS)
+    #if targetEnvironment(macCatalyst)
+    override var canBecomeFirstResponder: Bool { true }
+
+    override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        guard let key = presses.first?.key else {
+            super.pressesBegan(presses, with: event)
+            return
+        }
+
+        switch key.keyCode {
+        case .keyboardSpacebar, .keyboardReturnOrEnter:
+            retryGame()
+        case .keyboardEscape:
+            returnToMenu()
+        default:
+            super.pressesBegan(presses, with: event)
+        }
+    }
+    #endif
+
    private func retryGame() {
        let pressDown = SKAction.scale(to: 0.9, duration: 0.1)
        let pressUp = SKAction.scale(to: 1.0, duration: 0.1)
@@ -318,6 +318,29 @@ class GameScene: SKScene {
        isDragging = false
    }

+    // MARK: - Keyboard Handling (macOS)
+    #if targetEnvironment(macCatalyst)
+    override var canBecomeFirstResponder: Bool { true }
+
+    override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        guard let key = presses.first?.key else {
+            super.pressesBegan(presses, with: event)
+            return
+        }
+
+        switch key.keyCode {
+        case .keyboardEscape:
+            togglePause()
+        case .keyboardSpacebar:
+            if gameState.currentState == .paused {
+                resumeGame()
+            }
+        default:
+            super.pressesBegan(presses, with: event)
+        }
+    }
+    #endif
+
    // MARK: - Pause Handling
    private func togglePause() {
        if gameState.currentState == .playing {
@@ -245,6 +245,25 @@ class MenuScene: SKScene {
        }
    }

+    // MARK: - Keyboard Handling (macOS)
+    #if targetEnvironment(macCatalyst)
+    override var canBecomeFirstResponder: Bool { true }
+
+    override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        guard let key = presses.first?.key else {
+            super.pressesBegan(presses, with: event)
+            return
+        }
+
+        switch key.keyCode {
+        case .keyboardSpacebar, .keyboardReturnOrEnter:
+            startGame()
+        default:
+            super.pressesBegan(presses, with: event)
+        }
+    }
+    #endif
+
    private func startGame() {
        // Button press effect
        let pressDown = SKAction.scale(to: 0.9, duration: 0.1)
@@ -280,6 +280,27 @@ class VictoryScene: SKScene {
        }
    }

+    // MARK: - Keyboard Handling (macOS)
+    #if targetEnvironment(macCatalyst)
+    override var canBecomeFirstResponder: Bool { true }
+
+    override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
+        guard let key = presses.first?.key else {
+            super.pressesBegan(presses, with: event)
+            return
+        }
+
+        switch key.keyCode {
+        case .keyboardSpacebar, .keyboardReturnOrEnter:
+            playAgain()
+        case .keyboardEscape:
+            returnToMenu()
+        default:
+            super.pressesBegan(presses, with: event)
+        }
+    }
+    #endif
+
    private func playAgain() {
        let pressDown = SKAction.scale(to: 0.9, duration: 0.1)
        let pressUp = SKAction.scale(to: 1.0, duration: 0.1)
@@ -0,0 +1,8 @@
+# Build artifacts
+bin/
+obj/
+
+# Visual Studio user/IDE files
+.vs/
+*.user
+*.suo
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Trafag Sales Exporter</title>
+    <base href="/" />
+    <link href="css/app.css" rel="stylesheet" />
+    <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap" rel="stylesheet" />
+    <link href="_content/MudBlazor/MudBlazor.min.css" rel="stylesheet" />
+    <HeadOutlet @rendermode="@Microsoft.AspNetCore.Components.Web.RenderMode.InteractiveServer" />
+</head>
+<body>
+    <Routes @rendermode="@Microsoft.AspNetCore.Components.Web.RenderMode.InteractiveServer" />
+    <script src="_framework/blazor.web.js"></script>
+    <script src="_content/MudBlazor/MudBlazor.min.js"></script>
+</body>
+</html>
@@ -0,0 +1,38 @@
+@inherits LayoutComponentBase
+
+<MudThemeProvider Theme="_theme" />
+<MudPopoverProvider />
+<MudDialogProvider />
+<MudSnackbarProvider />
+
+<MudLayout>
+    <MudAppBar Elevation="1" Color="Color.Primary">
+        <MudIconButton Icon="@Icons.Material.Filled.Menu" Color="Color.Inherit" Edge="Edge.Start"
+                       OnClick="ToggleDrawer" />
+        <MudText Typo="Typo.h6" Class="ml-3">Trafag Sales Exporter</MudText>
+    </MudAppBar>
+
+    <MudDrawer @bind-Open="_drawerOpen" Elevation="2" ClipMode="DrawerClipMode.Always">
+        <NavMenu />
+    </MudDrawer>
+
+    <MudMainContent Class="pa-4">
+        @Body
+    </MudMainContent>
+</MudLayout>
+
+@code {
+    private bool _drawerOpen = true;
+
+    private readonly MudTheme _theme = new()
+    {
+        PaletteLight = new PaletteLight
+        {
+            Primary = "#1565C0",
+            Secondary = "#00897B",
+            AppbarBackground = "#1565C0"
+        }
+    };
+
+    private void ToggleDrawer() => _drawerOpen = !_drawerOpen;
+}
@@ -0,0 +1,17 @@
+<MudNavMenu>
+    <MudNavLink Href="/" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.Dashboard">
+        Dashboard
+    </MudNavLink>
+    <MudNavLink Href="/standorte" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.LocationOn">
+        Standorte
+    </MudNavLink>
+    <MudNavLink Href="/transformations" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.Transform">
+        Transformationen
+    </MudNavLink>
+    <MudNavLink Href="/settings" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.Settings">
+        Settings
+    </MudNavLink>
+    <MudNavLink Href="/logs" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.List">
+        Logs
+    </MudNavLink>
+</MudNavMenu>
@@ -0,0 +1,193 @@
+@page "/"
+@using Microsoft.EntityFrameworkCore
+@using TrafagSalesExporter.Data
+@using TrafagSalesExporter.Services
+@inject IDbContextFactory<AppDbContext> DbFactory
+@inject ExportOrchestrationService Orchestrator
+@inject TimerBackgroundService TimerService
+@inject ISnackbar Snackbar
+@implements IDisposable
+
+<PageTitle>Dashboard</PageTitle>
+
+<MudText Typo="Typo.h4" Class="mb-4">Dashboard</MudText>
+
+<MudPaper Class="pa-4 mb-4" Elevation="1">
+    <MudStack Row AlignItems="AlignItems.Center" Spacing="4">
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.PlayArrow"
+                   OnClick="ExportAll" Disabled="_anyRunning">
+            Alle exportieren
+        </MudButton>
+        <MudText Typo="Typo.body1">
+            @if (TimerService.NextRun < DateTime.MaxValue)
+            {
+                <MudIcon Icon="@Icons.Material.Filled.Schedule" Size="Size.Small" Class="mr-1" />
+                @($"Nächster automatischer Lauf: {TimerService.NextRun:dd.MM.yyyy HH:mm}")
+            }
+            else
+            {
+                <MudIcon Icon="@Icons.Material.Filled.TimerOff" Size="Size.Small" Class="mr-1" />
+                @("Timer deaktiviert")
+            }
+        </MudText>
+    </MudStack>
+</MudPaper>
+
+<MudTable Items="_dashboardRows" Dense Hover Striped Loading="_loading">
+    <HeaderContent>
+        <MudTh>Land</MudTh>
+        <MudTh>TSC</MudTh>
+        <MudTh>Schema</MudTh>
+        <MudTh>Server</MudTh>
+        <MudTh>Status</MudTh>
+        <MudTh>Zeilen</MudTh>
+        <MudTh>Letzter Lauf</MudTh>
+        <MudTh>Dauer</MudTh>
+        <MudTh>Aktion</MudTh>
+    </HeaderContent>
+    <RowTemplate>
+        <MudTd>@context.Land</MudTd>
+        <MudTd>@context.TSC</MudTd>
+        <MudTd>@context.Schema</MudTd>
+        <MudTd>@context.ServerName</MudTd>
+        <MudTd>
+            @if (Orchestrator.IsExporting(context.SiteId))
+            {
+                <MudProgressCircular Size="Size.Small" Indeterminate Color="Color.Primary" Class="mr-1" />
+                <MudText Typo="Typo.caption">@Orchestrator.GetExportStatus(context.SiteId)</MudText>
+            }
+            else if (context.LastStatus == "OK")
+            {
+                <MudIcon Icon="@Icons.Material.Filled.CheckCircle" Color="Color.Success" Size="Size.Small" />
+            }
+            else if (context.LastStatus == "Error")
+            {
+                <MudTooltip Text="@context.ErrorMessage">
+                    <MudIcon Icon="@Icons.Material.Filled.Error" Color="Color.Error" Size="Size.Small" />
+                </MudTooltip>
+            }
+            else
+            {
+                <MudText Typo="Typo.caption" Color="Color.Default">-</MudText>
+            }
+        </MudTd>
+        <MudTd>@(context.RowCount > 0 ? context.RowCount.ToString("N0") : "-")</MudTd>
+        <MudTd>@(context.LastRun.HasValue ? context.LastRun.Value.ToString("dd.MM.yyyy HH:mm:ss") : "-")</MudTd>
+        <MudTd>@(context.DurationSeconds > 0 ? $"{context.DurationSeconds:F1}s" : "-")</MudTd>
+        <MudTd>
+            <MudButton Size="Size.Small" Variant="Variant.Outlined" Color="Color.Primary"
+                       StartIcon="@Icons.Material.Filled.FileDownload"
+                       OnClick="() => ExportSingle(context.SiteId)"
+                       Disabled="Orchestrator.IsExporting(context.SiteId)">
+                Export
+            </MudButton>
+        </MudTd>
+    </RowTemplate>
+</MudTable>
+
+@code {
+    private List<DashboardRow> _dashboardRows = new();
+    private bool _loading = true;
+    private bool _anyRunning;
+
+    protected override async Task OnInitializedAsync()
+    {
+        Orchestrator.OnExportStatusChanged += HandleStatusChanged;
+        await LoadDataAsync();
+    }
+
+    private async Task LoadDataAsync()
+    {
+        _loading = true;
+        using var db = await DbFactory.CreateDbContextAsync();
+
+        var sites = await db.Sites.Include(s => s.HanaServer).Where(s => s.IsActive).ToListAsync();
+        var logs = await db.ExportLogs
+            .GroupBy(l => l.SiteId)
+            .Select(g => g.OrderByDescending(l => l.Timestamp).First())
+            .ToListAsync();
+
+        _dashboardRows = sites.Select(s =>
+        {
+            var log = logs.FirstOrDefault(l => l.SiteId == s.Id);
+            return new DashboardRow
+            {
+                SiteId = s.Id,
+                Land = s.Land,
+                TSC = s.TSC,
+                Schema = s.Schema,
+                ServerName = s.HanaServer?.Name ?? "",
+                LastStatus = log?.Status ?? "",
+                RowCount = log?.RowCount ?? 0,
+                LastRun = log?.Timestamp,
+                DurationSeconds = log?.DurationSeconds ?? 0,
+                ErrorMessage = log?.ErrorMessage ?? ""
+            };
+        }).ToList();
+
+        _anyRunning = _dashboardRows.Any(r => Orchestrator.IsExporting(r.SiteId));
+        _loading = false;
+    }
+
+    private async Task ExportAll()
+    {
+        _anyRunning = true;
+        _ = Task.Run(async () =>
+        {
+            await Orchestrator.ExportAllAsync();
+            await InvokeAsync(async () =>
+            {
+                await LoadDataAsync();
+                StateHasChanged();
+            });
+        });
+        Snackbar.Add("Export für alle Standorte gestartet", Severity.Info);
+    }
+
+    private void ExportSingle(int siteId)
+    {
+        _ = Task.Run(async () =>
+        {
+            await Orchestrator.ExportSiteByIdAsync(siteId);
+            await InvokeAsync(async () =>
+            {
+                await LoadDataAsync();
+                StateHasChanged();
+            });
+        });
+        Snackbar.Add("Export gestartet", Severity.Info);
+    }
+
+    private async void HandleStatusChanged()
+    {
+        await InvokeAsync(async () =>
+        {
+            _anyRunning = _dashboardRows.Any(r => Orchestrator.IsExporting(r.SiteId));
+            StateHasChanged();
+            if (!_anyRunning)
+            {
+                await LoadDataAsync();
+                StateHasChanged();
+            }
+        });
+    }
+
+    public void Dispose()
+    {
+        Orchestrator.OnExportStatusChanged -= HandleStatusChanged;
+    }
+
+    private class DashboardRow
+    {
+        public int SiteId { get; set; }
+        public string Land { get; set; } = "";
+        public string TSC { get; set; } = "";
+        public string Schema { get; set; } = "";
+        public string ServerName { get; set; } = "";
+        public string LastStatus { get; set; } = "";
+        public int RowCount { get; set; }
+        public DateTime? LastRun { get; set; }
+        public double DurationSeconds { get; set; }
+        public string ErrorMessage { get; set; } = "";
+    }
+}
@@ -0,0 +1,134 @@
+@page "/logs"
+@using Microsoft.EntityFrameworkCore
+@using TrafagSalesExporter.Data
+@inject IDbContextFactory<AppDbContext> DbFactory
+@inject ISnackbar Snackbar
+@inject IDialogService DialogService
+
+<PageTitle>Logs</PageTitle>
+
+<MudText Typo="Typo.h4" Class="mb-4">Export Logs</MudText>
+
+<MudPaper Class="pa-4 mb-4" Elevation="1">
+    <MudStack Row AlignItems="AlignItems.Center" Spacing="3">
+        <MudSelect @bind-Value="_filterLand" Label="Land" Clearable Dense Style="max-width:200px;">
+            @foreach (var land in _availableLands)
+            {
+                <MudSelectItem Value="@land">@land</MudSelectItem>
+            }
+        </MudSelect>
+        <MudSelect @bind-Value="_filterStatus" Label="Status" Clearable Dense Style="max-width:150px;">
+            <MudSelectItem Value="@("OK")">OK</MudSelectItem>
+            <MudSelectItem Value="@("Error")">Error</MudSelectItem>
+        </MudSelect>
+        <MudDatePicker @bind-Date="_filterDate" Label="Datum" Clearable Dense Style="max-width:200px;" />
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="ApplyFilter"
+                   StartIcon="@Icons.Material.Filled.FilterAlt">
+            Filtern
+        </MudButton>
+        <MudSpacer />
+        <MudButton Variant="Variant.Outlined" Color="Color.Error" OnClick="DeleteOldLogs"
+                   StartIcon="@Icons.Material.Filled.DeleteSweep">
+            Alte Logs löschen
+        </MudButton>
+    </MudStack>
+</MudPaper>
+
+<MudTable Items="_logs" Dense Hover Striped Loading="_loading">
+    <HeaderContent>
+        <MudTh>Zeitpunkt</MudTh>
+        <MudTh>Land</MudTh>
+        <MudTh>TSC</MudTh>
+        <MudTh>Status</MudTh>
+        <MudTh>Zeilen</MudTh>
+        <MudTh>Dauer</MudTh>
+        <MudTh>Dateiname</MudTh>
+        <MudTh>Fehler</MudTh>
+    </HeaderContent>
+    <RowTemplate>
+        <MudTd>@context.Timestamp.ToString("dd.MM.yyyy HH:mm:ss")</MudTd>
+        <MudTd>@context.Land</MudTd>
+        <MudTd>@context.TSC</MudTd>
+        <MudTd>
+            @if (context.Status == "OK")
+            {
+                <MudChip T="string" Size="Size.Small" Color="Color.Success">OK</MudChip>
+            }
+            else
+            {
+                <MudChip T="string" Size="Size.Small" Color="Color.Error">Error</MudChip>
+            }
+        </MudTd>
+        <MudTd>@context.RowCount.ToString("N0")</MudTd>
+        <MudTd>@($"{context.DurationSeconds:F1}s")</MudTd>
+        <MudTd>@context.FileName</MudTd>
+        <MudTd>
+            @if (!string.IsNullOrEmpty(context.ErrorMessage))
+            {
+                <MudTooltip Text="@context.ErrorMessage">
+                    <MudText Typo="Typo.caption" Color="Color.Error" Style="max-width:300px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; display:block;">
+                        @context.ErrorMessage
+                    </MudText>
+                </MudTooltip>
+            }
+        </MudTd>
+    </RowTemplate>
+</MudTable>
+
+@code {
+    private List<ExportLog> _logs = new();
+    private List<string> _availableLands = new();
+    private string? _filterLand;
+    private string? _filterStatus;
+    private DateTime? _filterDate;
+    private bool _loading = true;
+
+    protected override async Task OnInitializedAsync()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        _availableLands = await db.ExportLogs.Select(l => l.Land).Distinct().OrderBy(l => l).ToListAsync();
+        await LoadLogsAsync();
+    }
+
+    private async Task LoadLogsAsync()
+    {
+        _loading = true;
+        using var db = await DbFactory.CreateDbContextAsync();
+        IQueryable<ExportLog> query = db.ExportLogs.OrderByDescending(l => l.Timestamp);
+
+        if (!string.IsNullOrEmpty(_filterLand))
+            query = query.Where(l => l.Land == _filterLand);
+
+        if (!string.IsNullOrEmpty(_filterStatus))
+            query = query.Where(l => l.Status == _filterStatus);
+
+        if (_filterDate.HasValue)
+            query = query.Where(l => l.Timestamp.Date == _filterDate.Value.Date);
+
+        _logs = await query.Take(500).ToListAsync();
+        _loading = false;
+    }
+
+    private async Task ApplyFilter()
+    {
+        await LoadLogsAsync();
+    }
+
+    private async Task DeleteOldLogs()
+    {
+        var result = await DialogService.ShowMessageBox(
+            "Alte Logs löschen",
+            "Logs älter als 90 Tage löschen?",
+            yesText: "Löschen", cancelText: "Abbrechen");
+
+        if (result != true) return;
+
+        using var db = await DbFactory.CreateDbContextAsync();
+        var cutoff = DateTime.Now.AddDays(-90);
+        var oldLogs = await db.ExportLogs.Where(l => l.Timestamp < cutoff).ToListAsync();
+        db.ExportLogs.RemoveRange(oldLogs);
+        var count = await db.SaveChangesAsync();
+        await LoadLogsAsync();
+        Snackbar.Add($"{oldLogs.Count} alte Logs gelöscht", Severity.Info);
+    }
+}
@@ -0,0 +1,164 @@
+@page "/settings"
+@using Microsoft.EntityFrameworkCore
+@using TrafagSalesExporter.Data
+@using TrafagSalesExporter.Services
+@inject IDbContextFactory<AppDbContext> DbFactory
+@inject SharePointUploadService SpService
+@inject TimerBackgroundService TimerService
+@inject ISnackbar Snackbar
+
+<PageTitle>Settings</PageTitle>
+
+<MudText Typo="Typo.h4" Class="mb-4">Settings</MudText>
+
+@* SharePoint Config *@
+<MudText Typo="Typo.h5" Class="mb-2">SharePoint Konfiguration</MudText>
+<MudPaper Class="pa-4 mb-6" Elevation="1">
+    <MudGrid>
+        <MudItem xs="12" md="6">
+            <MudTextField @bind-Value="_spConfig.SiteUrl" Label="Site URL" />
+        </MudItem>
+        <MudItem xs="12" md="6">
+            <MudTextField @bind-Value="_spConfig.ExportFolder" Label="Export Folder" />
+        </MudItem>
+        <MudItem xs="12" md="4">
+            <MudTextField @bind-Value="_spConfig.TenantId" Label="Tenant ID" />
+        </MudItem>
+        <MudItem xs="12" md="4">
+            <MudTextField @bind-Value="_spConfig.ClientId" Label="Client ID" />
+        </MudItem>
+        <MudItem xs="12" md="4">
+            <MudTextField @bind-Value="_spConfig.ClientSecret" Label="Client Secret" InputType="InputType.Password" />
+        </MudItem>
+        <MudItem xs="12">
+            <MudStack Row Spacing="2">
+                <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="SaveSharePoint"
+                           StartIcon="@Icons.Material.Filled.Save">
+                    Speichern
+                </MudButton>
+                <MudButton Variant="Variant.Outlined" Color="Color.Info" OnClick="TestSharePoint"
+                           StartIcon="@Icons.Material.Filled.NetworkCheck" Disabled="_testingSp">
+                    @if (_testingSp)
+                    {
+                        <MudProgressCircular Size="Size.Small" Indeterminate Class="mr-2" />
+                        @("Teste...")
+                    }
+                    else
+                    {
+                        @("SharePoint Verbindung testen")
+                    }
+                </MudButton>
+            </MudStack>
+        </MudItem>
+    </MudGrid>
+</MudPaper>
+
+@* Export Settings *@
+<MudText Typo="Typo.h5" Class="mb-2">Export Einstellungen</MudText>
+<MudPaper Class="pa-4 mb-6" Elevation="1">
+    <MudGrid>
+        <MudItem xs="12" md="4">
+            <MudTextField @bind-Value="_exportSettings.DateFilter" Label="Datum-Filter (ab)"
+                          HelperText="Format: yyyy-MM-dd" />
+        </MudItem>
+        <MudItem xs="12" md="2">
+            <MudNumericField @bind-Value="_exportSettings.TimerHour" Label="Timer Stunde" Min="0" Max="23" />
+        </MudItem>
+        <MudItem xs="12" md="2">
+            <MudNumericField @bind-Value="_exportSettings.TimerMinute" Label="Timer Minute" Min="0" Max="59" />
+        </MudItem>
+        <MudItem xs="12" md="4">
+            <MudSwitch @bind-Value="_exportSettings.TimerEnabled" Label="Timer aktiviert" Color="Color.Primary" />
+        </MudItem>
+        <MudItem xs="12">
+            <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="SaveExportSettings"
+                       StartIcon="@Icons.Material.Filled.Save">
+                Speichern
+            </MudButton>
+        </MudItem>
+    </MudGrid>
+</MudPaper>
+
+@* Filename Preview *@
+<MudText Typo="Typo.h5" Class="mb-2">Dateiname Vorschau</MudText>
+<MudPaper Class="pa-4" Elevation="1">
+    <MudText Typo="Typo.body1">
+        <MudIcon Icon="@Icons.Material.Filled.InsertDriveFile" Size="Size.Small" Class="mr-1" />
+        Sales_{"{TSC}"}_{DateTime.Now:yyyy-MM-dd}.xlsx
+    </MudText>
+    <MudText Typo="Typo.caption" Class="mt-1">
+        Beispiel: Sales_TRFR_@(DateTime.Now.ToString("yyyy-MM-dd")).xlsx
+    </MudText>
+</MudPaper>
+
+@code {
+    private SharePointConfig _spConfig = new();
+    private ExportSettings _exportSettings = new();
+    private bool _testingSp;
+
+    protected override async Task OnInitializedAsync()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        _spConfig = await db.SharePointConfigs.FirstOrDefaultAsync() ?? new SharePointConfig();
+        _exportSettings = await db.ExportSettings.FirstOrDefaultAsync() ?? new ExportSettings();
+    }
+
+    private async Task SaveSharePoint()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        var existing = await db.SharePointConfigs.FirstOrDefaultAsync();
+        if (existing is null)
+        {
+            db.SharePointConfigs.Add(_spConfig);
+        }
+        else
+        {
+            existing.SiteUrl = _spConfig.SiteUrl;
+            existing.ExportFolder = _spConfig.ExportFolder;
+            existing.TenantId = _spConfig.TenantId;
+            existing.ClientId = _spConfig.ClientId;
+            existing.ClientSecret = _spConfig.ClientSecret;
+        }
+        await db.SaveChangesAsync();
+        Snackbar.Add("SharePoint Konfiguration gespeichert", Severity.Success);
+    }
+
+    private async Task TestSharePoint()
+    {
+        _testingSp = true;
+        try
+        {
+            await SpService.TestConnectionAsync(
+                _spConfig.TenantId, _spConfig.ClientId, _spConfig.ClientSecret, _spConfig.SiteUrl);
+            Snackbar.Add("SharePoint Verbindung erfolgreich!", Severity.Success);
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"Verbindung fehlgeschlagen: {ex.Message}", Severity.Error);
+        }
+        finally
+        {
+            _testingSp = false;
+        }
+    }
+
+    private async Task SaveExportSettings()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        var existing = await db.ExportSettings.FirstOrDefaultAsync();
+        if (existing is null)
+        {
+            db.ExportSettings.Add(_exportSettings);
+        }
+        else
+        {
+            existing.DateFilter = _exportSettings.DateFilter;
+            existing.TimerHour = _exportSettings.TimerHour;
+            existing.TimerMinute = _exportSettings.TimerMinute;
+            existing.TimerEnabled = _exportSettings.TimerEnabled;
+        }
+        await db.SaveChangesAsync();
+        TimerService.Recalculate();
+        Snackbar.Add("Export Einstellungen gespeichert", Severity.Success);
+    }
+}
@@ -0,0 +1,353 @@
+@page "/standorte"
+@using Microsoft.EntityFrameworkCore
+@using TrafagSalesExporter.Data
+@using TrafagSalesExporter.Services
+@inject IDbContextFactory<AppDbContext> DbFactory
+@inject HanaQueryService HanaService
+@inject ISnackbar Snackbar
+@inject IDialogService DialogService
+
+<PageTitle>Standorte</PageTitle>
+
+<MudText Typo="Typo.h4" Class="mb-4">Standorte</MudText>
+
+<MudText Typo="Typo.h5" Class="mb-2">HANA Server</MudText>
+<MudPaper Class="pa-4 mb-6" Elevation="1">
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Add"
+               OnClick="AddServer" Class="mb-3">
+        Server hinzufügen
+    </MudButton>
+
+    <MudTable Items="_servers" Dense Hover Striped>
+        <HeaderContent>
+            <MudTh>Name</MudTh>
+            <MudTh>Host</MudTh>
+            <MudTh>Port</MudTh>
+            <MudTh>Username</MudTh>
+            <MudTh>Verbindungsstatus</MudTh>
+            <MudTh>Aktionen</MudTh>
+        </HeaderContent>
+        <RowTemplate>
+            <MudTd>@context.Name</MudTd>
+            <MudTd>@context.Host</MudTd>
+            <MudTd>@context.Port</MudTd>
+            <MudTd>@context.Username</MudTd>
+            <MudTd>
+                @if (_connectionStatus.TryGetValue(context.Id, out var status))
+                {
+                    <MudTooltip Text="@BuildStatusTooltip(status)">
+                        <MudChip Color="@(status.Success ? Color.Success : Color.Error)" Variant="Variant.Filled" Size="Size.Small">
+                            @(status.Success ? "OK" : "Fehler") - @status.Stage
+                        </MudChip>
+                    </MudTooltip>
+                }
+                else
+                {
+                    <MudChip Color="Color.Default" Variant="Variant.Outlined" Size="Size.Small">Nicht getestet</MudChip>
+                }
+            </MudTd>
+            <MudTd>
+                <MudIconButton Icon="@Icons.Material.Filled.Edit" Size="Size.Small"
+                               OnClick="() => EditServer(context)" />
+                <MudIconButton Icon="@Icons.Material.Filled.NetworkCheck" Size="Size.Small" Color="Color.Info"
+                               OnClick="() => TestServerConnection(context)" />
+                <MudIconButton Icon="@Icons.Material.Filled.Delete" Size="Size.Small" Color="Color.Error"
+                               OnClick="() => DeleteServer(context)" />
+            </MudTd>
+        </RowTemplate>
+    </MudTable>
+</MudPaper>
+
+<MudText Typo="Typo.h5" Class="mb-2">Standorte (Sites)</MudText>
+<MudPaper Class="pa-4" Elevation="1">
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Add"
+               OnClick="AddSite" Class="mb-3">
+        Neuen Standort hinzufügen
+    </MudButton>
+
+    <MudTable Items="_sites" Dense Hover Striped>
+        <HeaderContent>
+            <MudTh>Land</MudTh>
+            <MudTh>TSC</MudTh>
+            <MudTh>Schema</MudTh>
+            <MudTh>Quellsystem</MudTh>
+            <MudTh>Server</MudTh>
+            <MudTh>Aktiv</MudTh>
+            <MudTh>Aktionen</MudTh>
+        </HeaderContent>
+        <RowTemplate>
+            <MudTd>@context.Land</MudTd>
+            <MudTd>@context.TSC</MudTd>
+            <MudTd>@context.Schema</MudTd>
+            <MudTd>@context.SourceSystem</MudTd>
+            <MudTd>@(context.HanaServer?.Name ?? "-")</MudTd>
+            <MudTd>
+                @if (context.IsActive)
+                {
+                    <MudIcon Icon="@Icons.Material.Filled.CheckCircle" Color="Color.Success" Size="Size.Small" />
+                }
+                else
+                {
+                    <MudIcon Icon="@Icons.Material.Filled.Cancel" Color="Color.Default" Size="Size.Small" />
+                }
+            </MudTd>
+            <MudTd>
+                <MudIconButton Icon="@Icons.Material.Filled.Edit" Size="Size.Small"
+                               OnClick="() => EditSite(context)" />
+                <MudIconButton Icon="@Icons.Material.Filled.Delete" Size="Size.Small" Color="Color.Error"
+                               OnClick="() => DeleteSite(context)" />
+            </MudTd>
+        </RowTemplate>
+    </MudTable>
+</MudPaper>
+
+<MudDialog @bind-Visible="_serverDialogVisible" Options="_dialogOptions">
+    <TitleContent>
+        <MudText Typo="Typo.h6">@(_editingServer.Id == 0 ? "Server hinzufügen" : "Server bearbeiten")</MudText>
+    </TitleContent>
+    <DialogContent>
+        <MudTextField @bind-Value="_editingServer.Name" Label="Name" Required />
+        <MudTextField @bind-Value="_editingServer.Host" Label="Host" Required
+                      HelperText="IP oder Hostname (ohne Protokoll)" />
+        <MudNumericField @bind-Value="_editingServer.Port" Label="Port"
+                         HelperText="Typisch 30015 (Tenant), 30013 (SystemDB), 3xx15 für Instanz xx" />
+        <MudTextField @bind-Value="_editingServer.Username" Label="Username" />
+        <MudTextField @bind-Value="_editingServer.Password" Label="Password" InputType="InputType.Password" />
+        <MudTextField @bind-Value="_editingServer.DatabaseName" Label="Database Name (MDC)"
+                      HelperText="Nur bei Multi-Tenant Setup angeben, sonst leer lassen" />
+        <MudSwitch @bind-Value="_editingServer.UseSsl" Label="SSL/TLS verwenden (encrypt=true)" Color="Color.Primary" />
+        <MudSwitch @bind-Value="_editingServer.ValidateCertificate" Label="SSL-Zertifikat validieren" Color="Color.Primary"
+                   Disabled="!_editingServer.UseSsl" />
+        <MudTextField @bind-Value="_editingServer.AdditionalParams" Label="Zusätzliche Parameter"
+                      HelperText="Optional, z.B. sslCryptoProvider=openssl;communicationTimeout=0" />
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="() => _serverDialogVisible = false">Abbrechen</MudButton>
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="SaveServer">Speichern</MudButton>
+    </DialogActions>
+</MudDialog>
+
+<MudDialog @bind-Visible="_siteDialogVisible" Options="_dialogOptions">
+    <TitleContent>
+        <MudText Typo="Typo.h6">@(_editingSite.Id == 0 ? "Standort hinzufügen" : "Standort bearbeiten")</MudText>
+    </TitleContent>
+    <DialogContent>
+        <MudSelect @bind-Value="_editingSite.HanaServerId" Label="Server" Required>
+            @foreach (var s in _servers)
+            {
+                <MudSelectItem Value="s.Id">@s.Name</MudSelectItem>
+            }
+        </MudSelect>
+        <MudTextField @bind-Value="_editingSite.Schema" Label="Schema" Required />
+        <MudTextField @bind-Value="_editingSite.TSC" Label="TSC" Required />
+        <MudTextField @bind-Value="_editingSite.Land" Label="Land" Required />
+        <MudSelect @bind-Value="_editingSite.SourceSystem" Label="Quellsystem" Required>
+            @foreach (var system in _sourceSystems)
+            {
+                <MudSelectItem Value="system">@system</MudSelectItem>
+            }
+        </MudSelect>
+        <MudCheckBox @bind-Value="_editingSite.IsActive" Label="Aktiv" />
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="() => _siteDialogVisible = false">Abbrechen</MudButton>
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="SaveSite">Speichern</MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+    private readonly string[] _sourceSystems = ["SAP", "BI1", "SAGE"];
+    private readonly Dictionary<int, ConnectionTestResult> _connectionStatus = new();
+    private List<HanaServer> _servers = new();
+    private List<Site> _sites = new();
+    private HanaServer _editingServer = new();
+    private Site _editingSite = new();
+    private bool _serverDialogVisible;
+    private bool _siteDialogVisible;
+    private readonly DialogOptions _dialogOptions = new() { MaxWidth = MaxWidth.Small, FullWidth = true };
+
+    protected override async Task OnInitializedAsync()
+    {
+        await LoadDataAsync();
+    }
+
+    private async Task LoadDataAsync()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        _servers = await db.HanaServers.OrderBy(s => s.Name).ToListAsync();
+        _sites = await db.Sites.Include(s => s.HanaServer).OrderBy(s => s.Land).ToListAsync();
+    }
+
+    private void AddServer()
+    {
+        _editingServer = new HanaServer { Port = 30015 };
+        _serverDialogVisible = true;
+    }
+
+    private void EditServer(HanaServer server)
+    {
+        _editingServer = new HanaServer
+        {
+            Id = server.Id,
+            Name = server.Name,
+            Host = server.Host,
+            Port = server.Port,
+            Username = server.Username,
+            Password = server.Password,
+            DatabaseName = server.DatabaseName,
+            UseSsl = server.UseSsl,
+            ValidateCertificate = server.ValidateCertificate,
+            AdditionalParams = server.AdditionalParams
+        };
+        _serverDialogVisible = true;
+    }
+
+    private async Task SaveServer()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        if (_editingServer.Id == 0)
+        {
+            db.HanaServers.Add(_editingServer);
+        }
+        else
+        {
+            var existing = await db.HanaServers.FindAsync(_editingServer.Id);
+            if (existing is not null)
+            {
+                existing.Name = _editingServer.Name;
+                existing.Host = _editingServer.Host;
+                existing.Port = _editingServer.Port;
+                existing.Username = _editingServer.Username;
+                existing.Password = _editingServer.Password;
+                existing.DatabaseName = _editingServer.DatabaseName;
+                existing.UseSsl = _editingServer.UseSsl;
+                existing.ValidateCertificate = _editingServer.ValidateCertificate;
+                existing.AdditionalParams = _editingServer.AdditionalParams;
+            }
+        }
+
+        await db.SaveChangesAsync();
+        _serverDialogVisible = false;
+        await LoadDataAsync();
+        Snackbar.Add("Server gespeichert", Severity.Success);
+    }
+
+    private async Task DeleteServer(HanaServer server)
+    {
+        var result = await DialogService.ShowMessageBox(
+            "Server löschen",
+            $"Server '{server.Name}' wirklich löschen?",
+            yesText: "Löschen", cancelText: "Abbrechen");
+
+        if (result != true) return;
+
+        using var db = await DbFactory.CreateDbContextAsync();
+        var entity = await db.HanaServers.FindAsync(server.Id);
+        if (entity is not null)
+        {
+            db.HanaServers.Remove(entity);
+            await db.SaveChangesAsync();
+        }
+
+        await LoadDataAsync();
+        Snackbar.Add("Server gelöscht", Severity.Info);
+    }
+
+    private async Task TestServerConnection(HanaServer server)
+    {
+        var result = await Task.Run(() => HanaService.TestConnectionDetailed(server));
+        _connectionStatus[server.Id] = result;
+
+        if (result.Success)
+        {
+            Snackbar.Add($"Verbindung zu '{server.Name}' erfolgreich.", Severity.Success);
+        }
+        else
+        {
+            Snackbar.Add($"{server.Name}: {result.ExceptionType} - {result.ErrorMessage}", Severity.Error);
+        }
+    }
+
+    private static string BuildStatusTooltip(ConnectionTestResult status)
+    {
+        var stamp = status.TestedAtUtc.ToLocalTime().ToString("yyyy-MM-dd HH:mm:ss");
+        if (status.Success)
+            return $"Letzter Test: {stamp}\nStage: {status.Stage}\n{status.ConnectionStringPreview}";
+
+        return $"Letzter Test: {stamp}\nStage: {status.Stage}\nFehler: {status.ErrorMessage}\n{status.ConnectionStringPreview}";
+    }
+
+    private void AddSite()
+    {
+        _editingSite = new Site
+        {
+            IsActive = true,
+            SourceSystem = "SAP",
+            HanaServerId = _servers.FirstOrDefault()?.Id ?? 0
+        };
+        _siteDialogVisible = true;
+    }
+
+    private void EditSite(Site site)
+    {
+        _editingSite = new Site
+        {
+            Id = site.Id,
+            HanaServerId = site.HanaServerId,
+            Schema = site.Schema,
+            TSC = site.TSC,
+            Land = site.Land,
+            SourceSystem = string.IsNullOrWhiteSpace(site.SourceSystem) ? "SAP" : site.SourceSystem,
+            IsActive = site.IsActive
+        };
+        _siteDialogVisible = true;
+    }
+
+    private async Task SaveSite()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        if (_editingSite.Id == 0)
+        {
+            db.Sites.Add(_editingSite);
+        }
+        else
+        {
+            var existing = await db.Sites.FindAsync(_editingSite.Id);
+            if (existing is not null)
+            {
+                existing.HanaServerId = _editingSite.HanaServerId;
+                existing.Schema = _editingSite.Schema;
+                existing.TSC = _editingSite.TSC;
+                existing.Land = _editingSite.Land;
+                existing.SourceSystem = _editingSite.SourceSystem;
+                existing.IsActive = _editingSite.IsActive;
+            }
+        }
+
+        await db.SaveChangesAsync();
+        _siteDialogVisible = false;
+        await LoadDataAsync();
+        Snackbar.Add("Standort gespeichert", Severity.Success);
+    }
+
+    private async Task DeleteSite(Site site)
+    {
+        var result = await DialogService.ShowMessageBox(
+            "Standort löschen",
+            $"Standort '{site.Land}' wirklich löschen?",
+            yesText: "Löschen", cancelText: "Abbrechen");
+
+        if (result != true) return;
+
+        using var db = await DbFactory.CreateDbContextAsync();
+        var entity = await db.Sites.FindAsync(site.Id);
+        if (entity is not null)
+        {
+            db.Sites.Remove(entity);
+            await db.SaveChangesAsync();
+        }
+
+        await LoadDataAsync();
+        Snackbar.Add("Standort gelöscht", Severity.Info);
+    }
+}
@@ -0,0 +1,137 @@
+@page "/transformations"
+@using Microsoft.EntityFrameworkCore
+@using System.Reflection
+@using TrafagSalesExporter.Data
+@using TrafagSalesExporter.Models
+@inject IDbContextFactory<AppDbContext> DbFactory
+@inject ISnackbar Snackbar
+
+<PageTitle>Transformationen</PageTitle>
+
+<MudText Typo="Typo.h4" Class="mb-4">Transformer Ansicht</MudText>
+<MudText Typo="Typo.body1" Class="mb-4">Definiere pro Quellsystem (SAP, BI1, SAGE) Feld-Remapping und Transformationen.</MudText>
+
+<MudPaper Class="pa-4" Elevation="1">
+    <MudStack Row="true" Spacing="2" Class="mb-3">
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Add" OnClick="AddRule">
+            Regel hinzufügen
+        </MudButton>
+        <MudButton Variant="Variant.Outlined" Color="Color.Secondary" StartIcon="@Icons.Material.Filled.Save" OnClick="SaveAllAsync">
+            Alle speichern
+        </MudButton>
+    </MudStack>
+
+    <MudTable Items="_rules" Dense Hover Striped>
+        <HeaderContent>
+            <MudTh>Aktiv</MudTh>
+            <MudTh>System</MudTh>
+            <MudTh>Source</MudTh>
+            <MudTh>Target</MudTh>
+            <MudTh>Typ</MudTh>
+            <MudTh>Argument</MudTh>
+            <MudTh>Sort</MudTh>
+            <MudTh>Aktionen</MudTh>
+        </HeaderContent>
+        <RowTemplate>
+            <MudTd><MudCheckBox @bind-Value="context.IsActive" /></MudTd>
+            <MudTd>
+                <MudSelect T="string" Value="@context.SourceSystem" ValueChanged="@(v => context.SourceSystem = v)" Dense>
+                    @foreach (var system in _systems)
+                    {
+                        <MudSelectItem Value="system">@system</MudSelectItem>
+                    }
+                </MudSelect>
+            </MudTd>
+            <MudTd>
+                <MudSelect T="string" Value="@context.SourceField" ValueChanged="@(v => context.SourceField = v)" Dense>
+                    @foreach (var field in _recordFields)
+                    {
+                        <MudSelectItem Value="field">@field</MudSelectItem>
+                    }
+                </MudSelect>
+            </MudTd>
+            <MudTd>
+                <MudSelect T="string" Value="@context.TargetField" ValueChanged="@(v => context.TargetField = v)" Dense>
+                    @foreach (var field in _recordFields)
+                    {
+                        <MudSelectItem Value="field">@field</MudSelectItem>
+                    }
+                </MudSelect>
+            </MudTd>
+            <MudTd>
+                <MudSelect T="string" Value="@context.TransformationType" ValueChanged="@(v => context.TransformationType = v)" Dense>
+                    @foreach (var type in _types)
+                    {
+                        <MudSelectItem Value="type">@type</MudSelectItem>
+                    }
+                </MudSelect>
+            </MudTd>
+            <MudTd>
+                <MudTextField Value="@context.Argument" ValueChanged="@(v => context.Argument = v)" Dense
+                              HelperText="Replace: alt=>neu" />
+            </MudTd>
+            <MudTd>
+                <MudNumericField T="int" Value="@context.SortOrder" ValueChanged="@(v => context.SortOrder = v)" Dense />
+            </MudTd>
+            <MudTd>
+                <MudIconButton Icon="@Icons.Material.Filled.Delete" Color="Color.Error" Size="Size.Small"
+                               OnClick="() => RemoveRule(context)" />
+            </MudTd>
+        </RowTemplate>
+    </MudTable>
+</MudPaper>
+
+@code {
+    private readonly string[] _systems = ["SAP", "BI1", "SAGE"];
+    private readonly string[] _types = ["Copy", "Uppercase", "Lowercase", "Prefix", "Suffix", "Replace", "Constant"];
+    private readonly string[] _recordFields = typeof(SalesRecord)
+        .GetProperties(BindingFlags.Public | BindingFlags.Instance)
+        .Select(p => p.Name)
+        .OrderBy(n => n)
+        .ToArray();
+
+    private List<FieldTransformationRule> _rules = new();
+
+    protected override async Task OnInitializedAsync()
+    {
+        await LoadAsync();
+    }
+
+    private async Task LoadAsync()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        _rules = await db.FieldTransformationRules.OrderBy(r => r.SortOrder).ThenBy(r => r.Id).ToListAsync();
+    }
+
+    private void AddRule()
+    {
+        var nextSort = _rules.Count == 0 ? 10 : _rules.Max(r => r.SortOrder) + 10;
+        _rules.Add(new FieldTransformationRule
+        {
+            SourceSystem = "SAP",
+            SourceField = nameof(SalesRecord.Material),
+            TargetField = nameof(SalesRecord.Material),
+            TransformationType = "Copy",
+            SortOrder = nextSort,
+            IsActive = true
+        });
+    }
+
+    private void RemoveRule(FieldTransformationRule rule)
+    {
+        _rules.Remove(rule);
+    }
+
+    private async Task SaveAllAsync()
+    {
+        using var db = await DbFactory.CreateDbContextAsync();
+        db.FieldTransformationRules.RemoveRange(db.FieldTransformationRules);
+        await db.SaveChangesAsync();
+
+        db.FieldTransformationRules.AddRange(_rules);
+        await db.SaveChangesAsync();
+
+        Snackbar.Add("Transformationsregeln gespeichert.", Severity.Success);
+        await LoadAsync();
+    }
+}
@@ -0,0 +1,6 @@
+<Router AppAssembly="typeof(Program).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="routeData" DefaultLayout="typeof(Layout.MainLayout)" />
+        <FocusOnNavigate RouteData="routeData" Selector="h1" />
+    </Found>
+</Router>
@@ -0,0 +1,9 @@
+@using System.Net.Http
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using Microsoft.JSInterop
+@using MudBlazor
+@using TrafagSalesExporter.Components
+@using TrafagSalesExporter.Components.Layout
+@using TrafagSalesExporter.Models
@@ -0,0 +1,115 @@
+using System.Data;
+using Microsoft.EntityFrameworkCore;
+using TrafagSalesExporter.Models;
+
+namespace TrafagSalesExporter.Data;
+
+public class AppDbContext : DbContext
+{
+    public AppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }
+
+    public DbSet<HanaServer> HanaServers => Set<HanaServer>();
+    public DbSet<Site> Sites => Set<Site>();
+    public DbSet<SharePointConfig> SharePointConfigs => Set<SharePointConfig>();
+    public DbSet<ExportSettings> ExportSettings => Set<ExportSettings>();
+    public DbSet<ExportLog> ExportLogs => Set<ExportLog>();
+    public DbSet<FieldTransformationRule> FieldTransformationRules => Set<FieldTransformationRule>();
+
+    /// <summary>
+    /// Fügt Spalten zu existierenden Tabellen hinzu, die bei neueren Versionen
+    /// hinzugekommen sind. EnsureCreated aktualisiert das Schema nicht automatisch.
+    /// </summary>
+    public static void EnsureSchema(AppDbContext db)
+    {
+        AddColumnIfMissing(db, "HanaServers", "DatabaseName", "TEXT NOT NULL DEFAULT ''");
+        AddColumnIfMissing(db, "HanaServers", "UseSsl", "INTEGER NOT NULL DEFAULT 0");
+        AddColumnIfMissing(db, "HanaServers", "ValidateCertificate", "INTEGER NOT NULL DEFAULT 0");
+        AddColumnIfMissing(db, "HanaServers", "AdditionalParams", "TEXT NOT NULL DEFAULT ''");
+        AddColumnIfMissing(db, "Sites", "SourceSystem", "TEXT NOT NULL DEFAULT 'SAP'");
+        EnsureTransformationTable(db);
+    }
+
+    private static void AddColumnIfMissing(AppDbContext db, string table, string column, string type)
+    {
+        var conn = db.Database.GetDbConnection();
+        if (conn.State != ConnectionState.Open) conn.Open();
+
+        bool exists = false;
+        using (var cmd = conn.CreateCommand())
+        {
+            cmd.CommandText = $"PRAGMA table_info({table})";
+            using var reader = cmd.ExecuteReader();
+            while (reader.Read())
+            {
+                if (string.Equals(reader["name"]?.ToString(), column, StringComparison.OrdinalIgnoreCase))
+                {
+                    exists = true;
+                    break;
+                }
+            }
+        }
+
+        if (!exists)
+        {
+            using var alter = conn.CreateCommand();
+            alter.CommandText = $"ALTER TABLE {table} ADD COLUMN {column} {type}";
+            alter.ExecuteNonQuery();
+        }
+    }
+
+    private static void EnsureTransformationTable(AppDbContext db)
+    {
+        var conn = db.Database.GetDbConnection();
+        if (conn.State != ConnectionState.Open) conn.Open();
+
+        using var cmd = conn.CreateCommand();
+        cmd.CommandText = @"
+CREATE TABLE IF NOT EXISTS FieldTransformationRules (
+    Id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    SourceSystem TEXT NOT NULL DEFAULT 'SAP',
+    SourceField TEXT NOT NULL,
+    TargetField TEXT NOT NULL,
+    TransformationType TEXT NOT NULL,
+    Argument TEXT NOT NULL DEFAULT '',
+    SortOrder INTEGER NOT NULL DEFAULT 0,
+    IsActive INTEGER NOT NULL DEFAULT 1
+);";
+        cmd.ExecuteNonQuery();
+    }
+
+    public static void SeedIfEmpty(AppDbContext db)
+    {
+        if (db.HanaServers.Any()) return;
+
+        var serverInternal = new HanaServer { Name = "Internal", Host = "travtrp0", Port = 30015, Username = "", Password = "" };
+        var serverIndia = new HanaServer { Name = "India", Host = "20.197.20.60", Port = 30015, Username = "", Password = "" };
+        db.HanaServers.AddRange(serverInternal, serverIndia);
+        db.SaveChanges();
+
+        db.Sites.AddRange(
+            new Site { HanaServerId = serverInternal.Id, Schema = "fr01_p", TSC = "TRFR", Land = "Frankreich", IsActive = true },
+            new Site { HanaServerId = serverInternal.Id, Schema = "it01_p", TSC = "TRIT", Land = "Italien", IsActive = true },
+            new Site { HanaServerId = serverInternal.Id, Schema = "us01_p", TSC = "TRUS", Land = "USA", IsActive = true },
+            new Site { HanaServerId = serverIndia.Id, Schema = "TRAFAG_LIVE", TSC = "TRIN", Land = "Indien", IsActive = true }
+        );
+
+        db.SharePointConfigs.Add(new SharePointConfig
+        {
+            SiteUrl = "https://trafagag.sharepoint.com/sites/WorldwideBIPlatform",
+            ExportFolder = "/Shared Documents/Exports/",
+            TenantId = "",
+            ClientId = "",
+            ClientSecret = ""
+        });
+
+        db.ExportSettings.Add(new ExportSettings
+        {
+            DateFilter = "2025-01-01",
+            TimerHour = 3,
+            TimerMinute = 0,
+            TimerEnabled = true
+        });
+
+        db.SaveChanges();
+    }
+}
@@ -0,0 +1,21 @@
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace TrafagSalesExporter.Models;
+
+public class ExportLog
+{
+    public int Id { get; set; }
+    public DateTime Timestamp { get; set; }
+    public int SiteId { get; set; }
+
+    [ForeignKey(nameof(SiteId))]
+    public Site? Site { get; set; }
+
+    public string Land { get; set; } = string.Empty;
+    public string TSC { get; set; } = string.Empty;
+    public string Status { get; set; } = string.Empty;
+    public int RowCount { get; set; }
+    public string? ErrorMessage { get; set; }
+    public string FileName { get; set; } = string.Empty;
+    public double DurationSeconds { get; set; }
+}
@@ -0,0 +1,10 @@
+namespace TrafagSalesExporter.Models;
+
+public class ExportSettings
+{
+    public int Id { get; set; }
+    public string DateFilter { get; set; } = "2025-01-01";
+    public int TimerHour { get; set; } = 3;
+    public int TimerMinute { get; set; }
+    public bool TimerEnabled { get; set; } = true;
+}
@@ -0,0 +1,26 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace TrafagSalesExporter.Models;
+
+public class FieldTransformationRule
+{
+    public int Id { get; set; }
+
+    [Required]
+    public string SourceSystem { get; set; } = "SAP";
+
+    [Required]
+    public string SourceField { get; set; } = nameof(SalesRecord.Material);
+
+    [Required]
+    public string TargetField { get; set; } = nameof(SalesRecord.Material);
+
+    [Required]
+    public string TransformationType { get; set; } = "Copy";
+
+    public string Argument { get; set; } = string.Empty;
+
+    public int SortOrder { get; set; }
+
+    public bool IsActive { get; set; } = true;
+}
@@ -0,0 +1,84 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace TrafagSalesExporter.Models;
+
+public class HanaServer
+{
+    public int Id { get; set; }
+
+    [Required]
+    public string Name { get; set; } = string.Empty;
+
+    [Required]
+    public string Host { get; set; } = string.Empty;
+
+    public int Port { get; set; } = 30015;
+
+    public string Username { get; set; } = string.Empty;
+
+    public string Password { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Name der Tenant-Datenbank bei Multi-Tenant Database Container (MDC) Setups.
+    /// Leer lassen, wenn direkt auf einen Tenant-Port verbunden wird.
+    /// </summary>
+    public string DatabaseName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// SSL/TLS Verschlüsselung aktivieren (encrypt=true).
+    /// </summary>
+    public bool UseSsl { get; set; }
+
+    /// <summary>
+    /// SSL-Zertifikat validieren. Bei self-signed Zertifikaten auf false setzen.
+    /// </summary>
+    public bool ValidateCertificate { get; set; }
+
+    /// <summary>
+    /// Zusätzliche Verbindungsparameter (Semikolon-getrennt), z.B. "sslCryptoProvider=openssl".
+    /// </summary>
+    public string AdditionalParams { get; set; } = string.Empty;
+
+    public string BuildConnectionString()
+    {
+        var parts = new List<string>
+        {
+            $"ServerNode={Host}:{Port}",
+            $"UserName={Username}",
+            $"Password={Password}"
+        };
+
+        if (!string.IsNullOrWhiteSpace(DatabaseName))
+            parts.Add($"DatabaseName={DatabaseName}");
+
+        if (UseSsl)
+        {
+            parts.Add("encrypt=true");
+            parts.Add($"sslValidateCertificate={(ValidateCertificate ? "true" : "false")}");
+        }
+
+        if (!string.IsNullOrWhiteSpace(AdditionalParams))
+            parts.Add(AdditionalParams.Trim().Trim(';'));
+
+        return string.Join(";", parts);
+    }
+
+    public string GetConnectionStringPreview()
+    {
+        var pwdMasked = string.IsNullOrEmpty(Password) ? "" : "***";
+        var copy = new HanaServer
+        {
+            Host = Host,
+            Port = Port,
+            Username = Username,
+            Password = pwdMasked,
+            DatabaseName = DatabaseName,
+            UseSsl = UseSsl,
+            ValidateCertificate = ValidateCertificate,
+            AdditionalParams = AdditionalParams
+        };
+
+        return copy.BuildConnectionString();
+    }
+}
+
@@ -0,0 +1,31 @@
+namespace TrafagSalesExporter.Models;
+
+public class SalesRecord
+{
+    public DateTime ExtractionDate { get; set; }
+    public string Tsc { get; set; } = string.Empty;
+    public string InvoiceNumber { get; set; } = string.Empty;
+    public int PositionOnInvoice { get; set; }
+    public string Material { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+    public string ProductGroup { get; set; } = string.Empty;
+    public decimal Quantity { get; set; }
+    public string SupplierNumber { get; set; } = string.Empty;
+    public string SupplierName { get; set; } = string.Empty;
+    public string SupplierCountry { get; set; } = string.Empty;
+    public string CustomerNumber { get; set; } = string.Empty;
+    public string CustomerName { get; set; } = string.Empty;
+    public string CustomerCountry { get; set; } = string.Empty;
+    public string CustomerIndustry { get; set; } = string.Empty;
+    public decimal StandardCost { get; set; }
+    public string StandardCostCurrency { get; set; } = string.Empty;
+    public string PurchaseOrderNumber { get; set; } = string.Empty;
+    public decimal SalesPriceValue { get; set; }
+    public string SalesCurrency { get; set; } = string.Empty;
+    public string Incoterms2020 { get; set; } = string.Empty;
+    public string SalesResponsibleEmployee { get; set; } = string.Empty;
+    public DateTime? InvoiceDate { get; set; }
+    public DateTime? OrderDate { get; set; }
+    public string Land { get; set; } = string.Empty;
+    public string DocumentType { get; set; } = string.Empty;
+}
@@ -0,0 +1,11 @@
+namespace TrafagSalesExporter.Models;
+
+public class SharePointConfig
+{
+    public int Id { get; set; }
+    public string SiteUrl { get; set; } = string.Empty;
+    public string ExportFolder { get; set; } = string.Empty;
+    public string TenantId { get; set; } = string.Empty;
+    public string ClientId { get; set; } = string.Empty;
+    public string ClientSecret { get; set; } = string.Empty;
+}
@@ -0,0 +1,28 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace TrafagSalesExporter.Models;
+
+public class Site
+{
+    public int Id { get; set; }
+
+    public int HanaServerId { get; set; }
+
+    [ForeignKey(nameof(HanaServerId))]
+    public HanaServer? HanaServer { get; set; }
+
+    [Required]
+    public string Schema { get; set; } = string.Empty;
+
+    [Required]
+    public string TSC { get; set; } = string.Empty;
+
+    [Required]
+    public string Land { get; set; } = string.Empty;
+
+    [Required]
+    public string SourceSystem { get; set; } = "SAP";
+
+    public bool IsActive { get; set; } = true;
+}
@@ -0,0 +1,46 @@
+using Microsoft.EntityFrameworkCore;
+using MudBlazor.Services;
+using TrafagSalesExporter.Data;
+using TrafagSalesExporter.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddRazorComponents()
+    .AddInteractiveServerComponents();
+
+builder.Services.AddMudServices();
+
+builder.Services.AddDbContextFactory<AppDbContext>(options =>
+    options.UseSqlite("Data Source=trafag_exporter.db"));
+
+builder.Services.AddSingleton<HanaQueryService>();
+builder.Services.AddSingleton<ExcelExportService>();
+builder.Services.AddSingleton<SharePointUploadService>();
+builder.Services.AddSingleton<RecordTransformationService>();
+builder.Services.AddSingleton<ExportOrchestrationService>();
+builder.Services.AddSingleton<TimerBackgroundService>();
+builder.Services.AddHostedService(sp => sp.GetRequiredService<TimerBackgroundService>());
+
+var app = builder.Build();
+
+using (var scope = app.Services.CreateScope())
+{
+    var dbFactory = scope.ServiceProvider.GetRequiredService<IDbContextFactory<AppDbContext>>();
+    using var db = await dbFactory.CreateDbContextAsync();
+    await db.Database.EnsureCreatedAsync();
+    AppDbContext.EnsureSchema(db);
+    AppDbContext.SeedIfEmpty(db);
+}
+
+if (!app.Environment.IsDevelopment())
+{
+    app.UseHsts();
+}
+
+app.UseStaticFiles();
+app.UseAntiforgery();
+
+app.MapRazorComponents<TrafagSalesExporter.Components.App>()
+    .AddInteractiveServerRenderMode();
+
+app.Run();
@@ -0,0 +1,89 @@
+using ClosedXML.Excel;
+using TrafagSalesExporter.Models;
+
+namespace TrafagSalesExporter.Services;
+
+public class ExcelExportService
+{
+    public string CreateExcelFile(string outputDirectory, string tsc, DateTime fileDate, List<SalesRecord> records)
+    {
+        Directory.CreateDirectory(outputDirectory);
+        var fileName = $"Sales_{tsc}_{fileDate:yyyy-MM-dd}.xlsx";
+        var fullPath = Path.Combine(outputDirectory, fileName);
+
+        using var workbook = new XLWorkbook();
+        var ws = workbook.Worksheets.Add("Sales");
+
+        var headers = new[]
+        {
+            "extraction date",
+            "TSC",
+            "Invoice Number",
+            "Position on invoice",
+            "Material",
+            "Name",
+            "Product Group",
+            "Quantity",
+            "Supplier number",
+            "Supplier name",
+            "Supplier country",
+            "Customer number",
+            "Customer name",
+            "Customer country",
+            "Customer Industry",
+            "Standard cost",
+            "Standard Cost Currency",
+            "Purchase Order number",
+            "Sales Price/Value",
+            "Sales Currency",
+            "Incoterms 2020",
+            "Sales responsible employee",
+            "invoice date",
+            "order date",
+            "Land",
+            "Document Type"
+        };
+
+        for (var i = 0; i < headers.Length; i++)
+        {
+            ws.Cell(1, i + 1).Value = headers[i];
+            ws.Cell(1, i + 1).Style.Font.Bold = true;
+        }
+
+        var row = 2;
+        foreach (var record in records)
+        {
+            ws.Cell(row, 1).Value = record.ExtractionDate.ToString("dd.MM.yyyy HH:mm:ss");
+            ws.Cell(row, 2).Value = record.Tsc;
+            ws.Cell(row, 3).Value = record.InvoiceNumber;
+            ws.Cell(row, 4).Value = record.PositionOnInvoice;
+            ws.Cell(row, 5).Value = record.Material;
+            ws.Cell(row, 6).Value = record.Name;
+            ws.Cell(row, 7).Value = record.ProductGroup;
+            ws.Cell(row, 8).Value = record.Quantity;
+            ws.Cell(row, 9).Value = record.SupplierNumber;
+            ws.Cell(row, 10).Value = record.SupplierName;
+            ws.Cell(row, 11).Value = record.SupplierCountry;
+            ws.Cell(row, 12).Value = record.CustomerNumber;
+            ws.Cell(row, 13).Value = record.CustomerName;
+            ws.Cell(row, 14).Value = record.CustomerCountry;
+            ws.Cell(row, 15).Value = record.CustomerIndustry;
+            ws.Cell(row, 16).Value = record.StandardCost;
+            ws.Cell(row, 17).Value = record.StandardCostCurrency;
+            ws.Cell(row, 18).Value = record.PurchaseOrderNumber;
+            ws.Cell(row, 19).Value = record.SalesPriceValue;
+            ws.Cell(row, 20).Value = record.SalesCurrency;
+            ws.Cell(row, 21).Value = record.Incoterms2020;
+            ws.Cell(row, 22).Value = record.SalesResponsibleEmployee;
+            ws.Cell(row, 23).Value = record.InvoiceDate?.ToString("dd.MM.yyyy") ?? string.Empty;
+            ws.Cell(row, 24).Value = record.OrderDate?.ToString("dd.MM.yyyy") ?? string.Empty;
+            ws.Cell(row, 25).Value = record.Land;
+            ws.Cell(row, 26).Value = record.DocumentType;
+            row++;
+        }
+
+        ws.Columns().AdjustToContents();
+        workbook.SaveAs(fullPath);
+        return fullPath;
+    }
+}
@@ -0,0 +1,171 @@
+using Microsoft.EntityFrameworkCore;
+using System.Diagnostics;
+using TrafagSalesExporter.Data;
+using TrafagSalesExporter.Models;
+
+namespace TrafagSalesExporter.Services;
+
+public class ExportOrchestrationService
+{
+    private readonly IDbContextFactory<AppDbContext> _dbFactory;
+    private readonly HanaQueryService _hanaService;
+    private readonly ExcelExportService _excelService;
+    private readonly SharePointUploadService _sharePointService;
+    private readonly RecordTransformationService _transformationService;
+    private readonly ILogger<ExportOrchestrationService> _logger;
+
+    public event Action? OnExportStatusChanged;
+
+    private readonly Dictionary<int, string> _runningExports = new();
+    private readonly object _lock = new();
+
+    public ExportOrchestrationService(
+        IDbContextFactory<AppDbContext> dbFactory,
+        HanaQueryService hanaService,
+        ExcelExportService excelService,
+        SharePointUploadService sharePointService,
+        RecordTransformationService transformationService,
+        ILogger<ExportOrchestrationService> logger)
+    {
+        _dbFactory = dbFactory;
+        _hanaService = hanaService;
+        _excelService = excelService;
+        _sharePointService = sharePointService;
+        _transformationService = transformationService;
+        _logger = logger;
+    }
+
+    public bool IsExporting(int siteId)
+    {
+        lock (_lock)
+        {
+            return _runningExports.ContainsKey(siteId);
+        }
+    }
+
+    public string GetExportStatus(int siteId)
+    {
+        lock (_lock)
+        {
+            return _runningExports.TryGetValue(siteId, out var status) ? status : string.Empty;
+        }
+    }
+
+    public async Task ExportAllAsync()
+    {
+        using var db = await _dbFactory.CreateDbContextAsync();
+        var sites = await db.Sites.Include(s => s.HanaServer).Where(s => s.IsActive).ToListAsync();
+        foreach (var site in sites)
+        {
+            await ExportSiteAsync(site);
+        }
+    }
+
+    public async Task ExportSiteByIdAsync(int siteId)
+    {
+        using var db = await _dbFactory.CreateDbContextAsync();
+        var site = await db.Sites.Include(s => s.HanaServer).FirstOrDefaultAsync(s => s.Id == siteId);
+        if (site is null) return;
+        await ExportSiteAsync(site);
+    }
+
+    private async Task ExportSiteAsync(Site site)
+    {
+        if (site.HanaServer is null) return;
+
+        lock (_lock)
+        {
+            if (_runningExports.ContainsKey(site.Id)) return;
+            _runningExports[site.Id] = "HANA Abfrage...";
+        }
+        NotifyChanged();
+
+        var sw = Stopwatch.StartNew();
+        var log = new ExportLog
+        {
+            Timestamp = DateTime.Now,
+            SiteId = site.Id,
+            Land = site.Land,
+            TSC = site.TSC
+        };
+
+        try
+        {
+            using var db = await _dbFactory.CreateDbContextAsync();
+            var settings = await db.ExportSettings.FirstOrDefaultAsync() ?? new ExportSettings();
+            var spConfig = await db.SharePointConfigs.FirstOrDefaultAsync();
+
+            UpdateStatus(site.Id, "HANA Abfrage...");
+            var records = await Task.Run(() => _hanaService.GetSalesRecords(
+                site.HanaServer, site.Schema, site.TSC, site.Land, settings.DateFilter));
+
+            UpdateStatus(site.Id, "Transformationen anwenden...");
+            var rules = await db.FieldTransformationRules
+                .Where(r => r.IsActive && r.SourceSystem == (string.IsNullOrWhiteSpace(site.SourceSystem) ? "SAP" : site.SourceSystem))
+                .OrderBy(r => r.SortOrder)
+                .ToListAsync();
+            _transformationService.Apply(records, rules);
+
+            UpdateStatus(site.Id, "Excel erstellen...");
+            var outputDir = Path.Combine(AppContext.BaseDirectory, "output");
+            var filePath = _excelService.CreateExcelFile(outputDir, site.TSC, DateTime.UtcNow.Date, records);
+            var fileName = Path.GetFileName(filePath);
+
+            if (spConfig is not null &&
+                !string.IsNullOrWhiteSpace(spConfig.TenantId) &&
+                !string.IsNullOrWhiteSpace(spConfig.ClientId) &&
+                !string.IsNullOrWhiteSpace(spConfig.ClientSecret))
+            {
+                UpdateStatus(site.Id, "SharePoint Upload...");
+                await _sharePointService.UploadAsync(
+                    spConfig.TenantId, spConfig.ClientId, spConfig.ClientSecret,
+                    spConfig.SiteUrl, spConfig.ExportFolder, site.Land, filePath);
+            }
+
+            sw.Stop();
+            log.Status = "OK";
+            log.RowCount = records.Count;
+            log.FileName = fileName;
+            log.DurationSeconds = sw.Elapsed.TotalSeconds;
+
+            _logger.LogInformation("Export OK: {Land} ({TSC}) - {Rows} Zeilen in {Duration:F1}s",
+                site.Land, site.TSC, records.Count, sw.Elapsed.TotalSeconds);
+        }
+        catch (Exception ex)
+        {
+            sw.Stop();
+            log.Status = "Error";
+            log.ErrorMessage = ex.Message;
+            log.FileName = string.Empty;
+            log.DurationSeconds = sw.Elapsed.TotalSeconds;
+
+            _logger.LogError(ex, "Export Fehler: {Land} ({TSC})", site.Land, site.TSC);
+        }
+        finally
+        {
+            using var db = await _dbFactory.CreateDbContextAsync();
+            db.ExportLogs.Add(log);
+            await db.SaveChangesAsync();
+
+            lock (_lock)
+            {
+                _runningExports.Remove(site.Id);
+            }
+            NotifyChanged();
+        }
+    }
+
+    private void UpdateStatus(int siteId, string status)
+    {
+        lock (_lock)
+        {
+            _runningExports[siteId] = status;
+        }
+        NotifyChanged();
+    }
+
+    private void NotifyChanged()
+    {
+        OnExportStatusChanged?.Invoke();
+    }
+}
@@ -0,0 +1,217 @@
+using Sap.Data.Hana;
+using TrafagSalesExporter.Models;
+
+namespace TrafagSalesExporter.Services;
+
+public class HanaQueryService
+{
+    public List<SalesRecord> GetSalesRecords(HanaServer server,
+        string schema, string tsc, string land, string dateFilter)
+    {
+        var connectionString = server.BuildConnectionString();
+        var result = new List<SalesRecord>();
+
+        using var connection = new HanaConnection(connectionString);
+        connection.Open();
+
+        var invoiceQuery = GetInvoiceQuery(schema, tsc, dateFilter);
+        var creditNoteQuery = GetCreditNoteQuery(schema, tsc, dateFilter);
+
+        result.AddRange(ReadRecords(connection, invoiceQuery, land));
+        result.AddRange(ReadRecords(connection, creditNoteQuery, land));
+
+        foreach (var record in result)
+        {
+            if (record.Material.Contains('/'))
+            {
+                var parts = record.Material.Split('/');
+                record.Material = parts[^1];
+            }
+        }
+
+        return result;
+    }
+
+    public ConnectionTestResult TestConnectionDetailed(HanaServer server)
+    {
+        var testResult = new ConnectionTestResult
+        {
+            TestedAtUtc = DateTime.UtcNow,
+            ConnectionStringPreview = server.GetConnectionStringPreview(),
+            Stage = "Verbindungsaufbau"
+        };
+
+        try
+        {
+            var connectionString = server.BuildConnectionString();
+            using var connection = new HanaConnection(connectionString);
+            connection.Open();
+
+            testResult.Stage = "Ping-Query";
+            using var command = new HanaCommand("SELECT 1 FROM DUMMY", connection);
+            command.ExecuteScalar();
+
+            testResult.Success = true;
+            testResult.Stage = "OK";
+            return testResult;
+        }
+        catch (Exception ex)
+        {
+            testResult.Success = false;
+            testResult.ErrorMessage = ex.Message;
+            testResult.ExceptionType = ex.GetType().Name;
+            return testResult;
+        }
+    }
+
+    public void TestConnection(HanaServer server)
+    {
+        var connectionString = server.BuildConnectionString();
+        using var connection = new HanaConnection(connectionString);
+        connection.Open();
+    }
+
+    private static List<SalesRecord> ReadRecords(HanaConnection connection, string query, string land)
+    {
+        var records = new List<SalesRecord>();
+
+        using var command = new HanaCommand(query, connection);
+        using var reader = command.ExecuteReader();
+
+        while (reader.Read())
+        {
+            records.Add(new SalesRecord
+            {
+                ExtractionDate = reader.GetDateTime(reader.GetOrdinal("extraction_date")),
+                Tsc = reader.GetString(reader.GetOrdinal("tsc")),
+                InvoiceNumber = reader["invoice_number"]?.ToString() ?? string.Empty,
+                PositionOnInvoice = Convert.ToInt32(reader["invoice_position"]),
+                InvoiceDate = reader.IsDBNull(reader.GetOrdinal("invoice_date")) ? null : reader.GetDateTime(reader.GetOrdinal("invoice_date")),
+                Material = reader["material"]?.ToString() ?? string.Empty,
+                Name = reader["material_name"]?.ToString() ?? string.Empty,
+                ProductGroup = reader["product_group"]?.ToString() ?? string.Empty,
+                Quantity = Convert.ToDecimal(reader["quantity"]),
+                SupplierNumber = reader["supplier_number"]?.ToString() ?? string.Empty,
+                SupplierName = reader["supplier_name"]?.ToString() ?? string.Empty,
+                SupplierCountry = reader["supplier_country"]?.ToString() ?? string.Empty,
+                CustomerNumber = reader["customer_number"]?.ToString() ?? string.Empty,
+                CustomerName = reader["customer_name"]?.ToString() ?? string.Empty,
+                CustomerCountry = reader["customer_country"]?.ToString() ?? string.Empty,
+                CustomerIndustry = reader["customer_industry"]?.ToString() ?? string.Empty,
+                StandardCost = Convert.ToDecimal(reader["standard_cost"]),
+                StandardCostCurrency = reader["standard_cost_currency"]?.ToString() ?? string.Empty,
+                PurchaseOrderNumber = reader["purchase_order_number"]?.ToString() ?? string.Empty,
+                SalesPriceValue = Convert.ToDecimal(reader["sales_value"]),
+                SalesCurrency = reader["sales_currency"]?.ToString() ?? string.Empty,
+                Incoterms2020 = reader["incoterms_2020"]?.ToString() ?? string.Empty,
+                SalesResponsibleEmployee = reader["sales_responsible"]?.ToString() ?? string.Empty,
+                OrderDate = reader.IsDBNull(reader.GetOrdinal("order_date")) ? null : reader.GetDateTime(reader.GetOrdinal("order_date")),
+                Land = land,
+                DocumentType = reader["doc_type"]?.ToString() ?? string.Empty
+            });
+        }
+
+        return records;
+    }
+
+    private static string GetInvoiceQuery(string schema, string tsc, string dateFilter) => $@"
+SELECT
+    CURRENT_TIMESTAMP AS extraction_date,
+    '{tsc}' AS tsc,
+    h.""DocNum"" AS invoice_number,
+    p.""LineNum"" AS invoice_position,
+    h.""DocDate"" AS invoice_date,
+    p.""ItemCode"" AS material,
+    p.""Dscription"" AS material_name,
+    COALESCE(grp.""ItmsGrpNam"", '') AS product_group,
+    p.""Quantity"" AS quantity,
+    COALESCE(itm.""CardCode"", '') AS supplier_number,
+    COALESCE(sup.""CardName"", '') AS supplier_name,
+    COALESCE(sup_adr.""Country"", '') AS supplier_country,
+    h.""CardCode"" AS customer_number,
+    h.""CardName"" AS customer_name,
+    COALESCE(cust_adr.""Country"", '') AS customer_country,
+    COALESCE(ind.""IndName"", '') AS customer_industry,
+    p.""StockPrice"" AS standard_cost,
+    COALESCE(p.""Currency"", h.""DocCur"") AS standard_cost_currency,
+    CASE WHEN p.""BaseType"" = 22
+         THEN CAST(p.""BaseRef"" AS NVARCHAR(20))
+         ELSE '' END AS purchase_order_number,
+    p.""LineTotal"" AS sales_value,
+    COALESCE(p.""Currency"", h.""DocCur"") AS sales_currency,
+    '' AS incoterms_2020,
+    COALESCE(emp.""SlpName"", '') AS sales_responsible,
+    CASE WHEN p.""BaseType"" = 17
+         THEN (SELECT o.""DocDate"" FROM {schema}.""ORDR"" o
+               WHERE o.""DocEntry"" = p.""BaseEntry"")
+         ELSE NULL END AS order_date,
+    'INV' AS doc_type
+FROM {schema}.""OINV"" h
+INNER JOIN {schema}.""INV1"" p ON h.""DocEntry"" = p.""DocEntry""
+LEFT JOIN {schema}.""OITM"" itm ON p.""ItemCode"" = itm.""ItemCode""
+LEFT JOIN {schema}.""OITB"" grp ON itm.""ItmsGrpCod"" = grp.""ItmsGrpCod""
+LEFT JOIN {schema}.""OCRD"" cust ON h.""CardCode"" = cust.""CardCode""
+LEFT JOIN {schema}.""CRD1"" cust_adr ON h.""CardCode"" = cust_adr.""CardCode""
+    AND cust_adr.""AdresType"" = 'B' AND cust_adr.""Address"" = h.""PayToCode""
+LEFT JOIN {schema}.""OOND"" ind ON cust.""IndustryC"" = ind.""IndCode""
+LEFT JOIN {schema}.""OCRD"" sup ON itm.""CardCode"" = sup.""CardCode""
+    AND sup.""CardType"" = 'S'
+LEFT JOIN {schema}.""CRD1"" sup_adr ON itm.""CardCode"" = sup_adr.""CardCode""
+    AND sup_adr.""AdresType"" = 'B'
+LEFT JOIN {schema}.""OSLP"" emp ON h.""SlpCode"" = emp.""SlpCode""
+WHERE h.""CANCELED"" = 'N' AND h.""DocDate"" >= '{dateFilter}'
+ORDER BY h.""DocDate"" DESC, h.""DocNum"", p.""LineNum""";
+
+    private static string GetCreditNoteQuery(string schema, string tsc, string dateFilter) => $@"
+SELECT
+    CURRENT_TIMESTAMP AS extraction_date,
+    '{tsc}' AS tsc,
+    h.""DocNum"" AS invoice_number,
+    p.""LineNum"" AS invoice_position,
+    h.""DocDate"" AS invoice_date,
+    p.""ItemCode"" AS material,
+    p.""Dscription"" AS material_name,
+    COALESCE(grp.""ItmsGrpNam"", '') AS product_group,
+    p.""Quantity"" * -1 AS quantity,
+    COALESCE(itm.""CardCode"", '') AS supplier_number,
+    COALESCE(sup.""CardName"", '') AS supplier_name,
+    COALESCE(sup_adr.""Country"", '') AS supplier_country,
+    h.""CardCode"" AS customer_number,
+    h.""CardName"" AS customer_name,
+    COALESCE(cust_adr.""Country"", '') AS customer_country,
+    COALESCE(ind.""IndName"", '') AS customer_industry,
+    p.""StockPrice"" AS standard_cost,
+    COALESCE(p.""Currency"", h.""DocCur"") AS standard_cost_currency,
+    '' AS purchase_order_number,
+    p.""LineTotal"" * -1 AS sales_value,
+    COALESCE(p.""Currency"", h.""DocCur"") AS sales_currency,
+    '' AS incoterms_2020,
+    COALESCE(emp.""SlpName"", '') AS sales_responsible,
+    NULL AS order_date,
+    'CRN' AS doc_type
+FROM {schema}.""ORIN"" h
+INNER JOIN {schema}.""RIN1"" p ON h.""DocEntry"" = p.""DocEntry""
+LEFT JOIN {schema}.""OITM"" itm ON p.""ItemCode"" = itm.""ItemCode""
+LEFT JOIN {schema}.""OITB"" grp ON itm.""ItmsGrpCod"" = grp.""ItmsGrpCod""
+LEFT JOIN {schema}.""OCRD"" cust ON h.""CardCode"" = cust.""CardCode""
+LEFT JOIN {schema}.""CRD1"" cust_adr ON h.""CardCode"" = cust_adr.""CardCode""
+    AND cust_adr.""AdresType"" = 'B' AND cust_adr.""Address"" = h.""PayToCode""
+LEFT JOIN {schema}.""OOND"" ind ON cust.""IndustryC"" = ind.""IndCode""
+LEFT JOIN {schema}.""OCRD"" sup ON itm.""CardCode"" = sup.""CardCode""
+    AND sup.""CardType"" = 'S'
+LEFT JOIN {schema}.""CRD1"" sup_adr ON itm.""CardCode"" = sup_adr.""CardCode""
+    AND sup_adr.""AdresType"" = 'B'
+LEFT JOIN {schema}.""OSLP"" emp ON h.""SlpCode"" = emp.""SlpCode""
+WHERE h.""CANCELED"" = 'N' AND h.""DocDate"" >= '{dateFilter}'
+ORDER BY h.""DocDate"" DESC, h.""DocNum"", p.""LineNum""";
+}
+
+public class ConnectionTestResult
+{
+    public bool Success { get; set; }
+    public DateTime TestedAtUtc { get; set; }
+    public string Stage { get; set; } = string.Empty;
+    public string ErrorMessage { get; set; } = string.Empty;
+    public string ExceptionType { get; set; } = string.Empty;
+    public string ConnectionStringPreview { get; set; } = string.Empty;
+}
@@ -0,0 +1,92 @@
+using System.Reflection;
+using TrafagSalesExporter.Models;
+
+namespace TrafagSalesExporter.Services;
+
+public class RecordTransformationService
+{
+    private static readonly Dictionary<string, PropertyInfo> PropertyMap = typeof(SalesRecord)
+        .GetProperties(BindingFlags.Public | BindingFlags.Instance)
+        .ToDictionary(p => p.Name, p => p, StringComparer.OrdinalIgnoreCase);
+
+    public void Apply(List<SalesRecord> records, IEnumerable<FieldTransformationRule> rules)
+    {
+        var orderedRules = rules.Where(r => r.IsActive).OrderBy(r => r.SortOrder).ToList();
+        if (orderedRules.Count == 0 || records.Count == 0) return;
+
+        foreach (var record in records)
+        {
+            foreach (var rule in orderedRules)
+            {
+                ApplyRule(record, rule);
+            }
+        }
+    }
+
+    private static void ApplyRule(SalesRecord record, FieldTransformationRule rule)
+    {
+        if (!PropertyMap.TryGetValue(rule.SourceField, out var sourceProp)) return;
+        if (!PropertyMap.TryGetValue(rule.TargetField, out var targetProp)) return;
+
+        var sourceValue = sourceProp.GetValue(record);
+        object? result = rule.TransformationType switch
+        {
+            "Copy" => sourceValue,
+            "Uppercase" => sourceValue?.ToString()?.ToUpperInvariant(),
+            "Lowercase" => sourceValue?.ToString()?.ToLowerInvariant(),
+            "Prefix" => $"{rule.Argument}{sourceValue}",
+            "Suffix" => $"{sourceValue}{rule.Argument}",
+            "Replace" => ApplyReplace(sourceValue?.ToString(), rule.Argument),
+            "Constant" => rule.Argument,
+            _ => sourceValue
+        };
+
+        SetPropertyValue(record, targetProp, result);
+    }
+
+    private static string ApplyReplace(string? input, string? argument)
+    {
+        if (string.IsNullOrEmpty(input)) return string.Empty;
+        if (string.IsNullOrWhiteSpace(argument)) return input;
+
+        var parts = argument.Split("=>", 2, StringSplitOptions.TrimEntries);
+        if (parts.Length != 2) return input;
+        return input.Replace(parts[0], parts[1], StringComparison.OrdinalIgnoreCase);
+    }
+
+    private static void SetPropertyValue(SalesRecord record, PropertyInfo property, object? value)
+    {
+        try
+        {
+            if (property.PropertyType == typeof(string))
+            {
+                property.SetValue(record, value?.ToString() ?? string.Empty);
+                return;
+            }
+
+            if (property.PropertyType == typeof(int))
+            {
+                if (int.TryParse(value?.ToString(), out var parsedInt)) property.SetValue(record, parsedInt);
+                return;
+            }
+
+            if (property.PropertyType == typeof(decimal))
+            {
+                if (decimal.TryParse(value?.ToString(), out var parsedDecimal)) property.SetValue(record, parsedDecimal);
+                return;
+            }
+
+            if (property.PropertyType == typeof(DateTime?) || property.PropertyType == typeof(DateTime))
+            {
+                if (DateTime.TryParse(value?.ToString(), out var parsedDate)) property.SetValue(record, parsedDate);
+                return;
+            }
+
+            property.SetValue(record, value);
+        }
+        catch
+        {
+            // skip invalid conversion to keep export running
+        }
+    }
+}
@@ -0,0 +1,45 @@
+using Azure.Identity;
+using Microsoft.Graph;
+
+namespace TrafagSalesExporter.Services;
+
+public class SharePointUploadService
+{
+    public async Task UploadAsync(string tenantId, string clientId, string clientSecret,
+        string siteUrl, string exportFolder, string land, string localFilePath)
+    {
+        var credential = new ClientSecretCredential(tenantId, clientId, clientSecret);
+        var graphClient = new GraphServiceClient(credential, ["https://graph.microsoft.com/.default"]);
+
+        var uri = new Uri(siteUrl);
+        var sitePath = uri.AbsolutePath;
+        var site = await graphClient.Sites[$"{uri.Host}:{sitePath}"].GetAsync();
+
+        if (site?.Id is null)
+            throw new InvalidOperationException("SharePoint Site konnte nicht gefunden werden.");
+
+        var drive = await graphClient.Sites[site.Id].Drive.GetAsync();
+        if (drive?.Id is null)
+            throw new InvalidOperationException("SharePoint Dokumentenbibliothek konnte nicht gefunden werden.");
+
+        var fileName = Path.GetFileName(localFilePath);
+        var folderPath = exportFolder.Trim('/').Trim();
+        var remotePath = $"{folderPath}/{land}/{fileName}";
+
+        await using var stream = File.OpenRead(localFilePath);
+        await graphClient.Drives[drive.Id].Root.ItemWithPath(remotePath).Content.PutAsync(stream);
+    }
+
+    public async Task TestConnectionAsync(string tenantId, string clientId, string clientSecret, string siteUrl)
+    {
+        var credential = new ClientSecretCredential(tenantId, clientId, clientSecret);
+        var graphClient = new GraphServiceClient(credential, ["https://graph.microsoft.com/.default"]);
+
+        var uri = new Uri(siteUrl);
+        var sitePath = uri.AbsolutePath;
+        var site = await graphClient.Sites[$"{uri.Host}:{sitePath}"].GetAsync();
+
+        if (site?.Id is null)
+            throw new InvalidOperationException("SharePoint Site konnte nicht gefunden werden.");
+    }
+}
@@ -0,0 +1,67 @@
+using Microsoft.EntityFrameworkCore;
+using TrafagSalesExporter.Data;
+
+namespace TrafagSalesExporter.Services;
+
+public class TimerBackgroundService : BackgroundService
+{
+    private readonly IServiceProvider _serviceProvider;
+    private readonly ILogger<TimerBackgroundService> _logger;
+    private DateTime _nextRun = DateTime.MaxValue;
+
+    public DateTime NextRun => _nextRun;
+
+    public TimerBackgroundService(IServiceProvider serviceProvider, ILogger<TimerBackgroundService> logger)
+    {
+        _serviceProvider = serviceProvider;
+        _logger = logger;
+    }
+
+    public void Recalculate()
+    {
+        _ = RecalculateNextRunAsync();
+    }
+
+    private async Task RecalculateNextRunAsync()
+    {
+        var dbFactory = _serviceProvider.GetRequiredService<IDbContextFactory<AppDbContext>>();
+        using var db = await dbFactory.CreateDbContextAsync();
+        var settings = await db.ExportSettings.FirstOrDefaultAsync();
+
+        if (settings is null || !settings.TimerEnabled)
+        {
+            _nextRun = DateTime.MaxValue;
+            return;
+        }
+
+        var now = DateTime.Now;
+        var todayRun = new DateTime(now.Year, now.Month, now.Day, settings.TimerHour, settings.TimerMinute, 0);
+        _nextRun = todayRun <= now ? todayRun.AddDays(1) : todayRun;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        await RecalculateNextRunAsync();
+
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            await Task.Delay(TimeSpan.FromSeconds(30), stoppingToken);
+
+            if (DateTime.Now < _nextRun) continue;
+
+            _logger.LogInformation("Timer-Export gestartet um {Time}", DateTime.Now);
+
+            try
+            {
+                var orchestrator = _serviceProvider.GetRequiredService<ExportOrchestrationService>();
+                await orchestrator.ExportAllAsync();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Fehler beim Timer-Export");
+            }
+
+            await RecalculateNextRunAsync();
+        }
+    }
+}
@@ -0,0 +1,39 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <!--
+      Pfad zur SAP HANA Client DLL (wird mit dem SAP HANA Client installiert).
+      Standard-Pfad nach Installation: C:\Program Files\sap\hdbclient\dotnetcore\v2.1\
+      Kann bei Bedarf via MSBuild-Property überschrieben werden:
+        dotnet build /p:HanaClientDll="D:\pfad\zu\Sap.Data.Hana.Core.v2.1.dll"
+    -->
+    <HanaClientDll Condition="'$(HanaClientDll)' == ''">C:\Program Files\sap\hdbclient\dotnetcore\v2.1\Sap.Data.Hana.Core.v2.1.dll</HanaClientDll>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ClosedXML" Version="0.104.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.11" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.11">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Graph" Version="5.80.0" />
+    <PackageReference Include="Azure.Identity" Version="1.13.1" />
+    <PackageReference Include="MudBlazor" Version="7.15.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Reference Include="Sap.Data.Hana.Core.v2.1">
+      <HintPath>$(HanaClientDll)</HintPath>
+      <Private>true</Private>
+    </Reference>
+  </ItemGroup>
+
+  <Target Name="CheckHanaClient" BeforeTargets="ResolveAssemblyReferences">
+    <Warning Condition="!Exists('$(HanaClientDll)')"
+             Text="SAP HANA Client DLL nicht gefunden: $(HanaClientDll). Bitte SAP HANA Client installieren (https://tools.hana.ondemand.com) oder MSBuild-Property 'HanaClientDll' setzen." />
+  </Target>
+</Project>
@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}
@@ -0,0 +1,3 @@
+html, body {
+    font-family: 'Roboto', sans-serif;
+}
@@ -0,0 +1,26 @@
+# Configuration (contains secrets)
+config.php
+
+# Cache files
+weather_cache.json
+active_viewers.json
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log
+logs/
+
+# Vendor (if using composer)
+# vendor/
+
+# Uploads (user content)
+uploads/
@@ -0,0 +1,240 @@
+# Integration Guide für Aurora Livecam Erweiterungen
+
+## Übersicht der neuen Dateien
+
+```
+aurora-livecam/
+├── SettingsManager.php      # Admin-Einstellungen Klasse
+├── settings.json            # Einstellungen Datei
+├── js/
+│   ├── timelapse-controls.js   # Timelapse mit Slider
+│   ├── video-player.js         # Tagesvideos im Player
+│   └── admin-settings.js       # Admin AJAX
+├── css/
+│   └── player-controls.css     # Styles für Controls
+└── INTEGRATION.md           # Diese Anleitung
+```
+
+## Änderungen in index.php
+
+### 1. Am Anfang der Datei (nach den requires)
+
+```php
+<?php
+// ... bestehende requires ...
+
+// NEU: Settings Manager einbinden
+require_once 'SettingsManager.php';
+$settingsManager = new SettingsManager();
+
+// AJAX-Handler für Settings (VOR session_start!)
+$settingsManager->handleAjax();
+```
+
+### 2. Im HEAD-Bereich (CSS einbinden)
+
+```html
+<link rel="stylesheet" href="css/player-controls.css">
+```
+
+### 3. Vor </body> (JavaScript einbinden)
+
+```html
+<script src="js/timelapse-controls.js"></script>
+<script src="js/video-player.js"></script>
+<?php if ($adminManager->isAdmin()): ?>
+<script src="js/admin-settings.js"></script>
+<?php endif; ?>
+```
+
+### 4. Video-Container anpassen
+
+Ersetze den bestehenden video-container:
+
+```html
+<div class="video-container">
+    <?php echo $webcamManager->displayWebcam(); ?>
+
+    <!-- Timelapse Overlay -->
+    <div id="timelapse-viewer" style="display: none;">
+        <img id="timelapse-image" src="" alt="Timelapse">
+    </div>
+
+    <!-- NEU: Daily Video Player (wird dynamisch befüllt) -->
+</div>
+
+<!-- NEU: Timelapse Controls (außerhalb des Containers) -->
+<div id="timelapse-controls"></div>
+```
+
+### 5. Zuschauer-Anzeige konditionell machen
+
+Ersetze die Viewer-Stat Anzeige:
+
+```php
+<?php
+$viewerCount = $viewerCounter->getInitialCount();
+$showViewers = $settingsManager->shouldShowViewers($viewerCount);
+?>
+
+<?php if ($showViewers): ?>
+<div class="info-badge viewer-stat">
+    <span class="live-dot"></span>
+    <strong id="viewer-count-display"><?php echo $viewerCount; ?></strong>
+    <span>Zuschauer</span>
+</div>
+<?php endif; ?>
+```
+
+### 6. Kalender Links anpassen
+
+In der `VisualCalendarManager::displayVisualCalendar()` Methode:
+
+```php
+// Für Tagesvideos
+$playInPlayer = $settingsManager->shouldPlayInPlayer();
+$allowDownload = $settingsManager->shouldAllowDownload();
+
+if ($playInPlayer) {
+    // Im Player abspielen
+    $output .= '<a href="#" onclick="DailyVideoPlayer.playVideo(\'' . $video['path'] . '\', ' . ($allowDownload ? 'true' : 'false') . '); return false;" class="play-link">';
+    $output .= '▶️ Abspielen';
+    $output .= '</a>';
+}
+
+if ($allowDownload) {
+    // Download Link
+    $output .= '<a href="?download_specific_video=..." class="download-link">⬇️ Download</a>';
+}
+```
+
+### 7. Admin-Panel erweitern
+
+Füge im Admin-Bereich hinzu:
+
+```php
+<?php if ($adminManager->isAdmin()): ?>
+<section id="admin" class="section">
+    <div class="container">
+        <h2>Admin-Bereich</h2>
+
+        <!-- NEU: Settings Panel -->
+        <div id="admin-settings-panel">
+            <h3>⚙️ Anzeige-Einstellungen</h3>
+
+            <div class="settings-group">
+                <h4>👥 Zuschauer-Anzeige</h4>
+
+                <div class="setting-row">
+                    <span class="setting-label">Zuschauer-Anzahl anzeigen</span>
+                    <div class="setting-input">
+                        <label class="toggle-switch">
+                            <input type="checkbox" id="setting-viewer-enabled"
+                                   <?php echo $settingsManager->get('viewer_display.enabled') ? 'checked' : ''; ?>>
+                            <span class="toggle-slider"></span>
+                        </label>
+                    </div>
+                </div>
+
+                <div class="setting-row">
+                    <span class="setting-label">Mindestanzahl für Anzeige</span>
+                    <div class="setting-input">
+                        <input type="number" id="setting-min-viewers" class="number-input"
+                               min="1" max="100"
+                               value="<?php echo $settingsManager->get('viewer_display.min_viewers'); ?>">
+                    </div>
+                </div>
+            </div>
+
+            <div class="settings-group">
+                <h4>🎬 Video-Modus</h4>
+
+                <div class="setting-row">
+                    <span class="setting-label">Videos im Player abspielen</span>
+                    <div class="setting-input">
+                        <label class="toggle-switch">
+                            <input type="checkbox" id="setting-play-in-player"
+                                   <?php echo $settingsManager->get('video_mode.play_in_player') ? 'checked' : ''; ?>>
+                            <span class="toggle-slider"></span>
+                        </label>
+                    </div>
+                </div>
+
+                <div class="setting-row">
+                    <span class="setting-label">Download erlauben</span>
+                    <div class="setting-input">
+                        <label class="toggle-switch">
+                            <input type="checkbox" id="setting-allow-download"
+                                   <?php echo $settingsManager->get('video_mode.allow_download') ? 'checked' : ''; ?>>
+                            <span class="toggle-slider"></span>
+                        </label>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <!-- Bestehender Admin-Content -->
+        <?php echo $adminManager->displayAdminContent(); ?>
+    </div>
+</section>
+<?php endif; ?>
+```
+
+### 8. Timelapse Button Event anpassen
+
+Im bestehenden JavaScript:
+
+```javascript
+timelapseButton.addEventListener('click', function(e) {
+    e.preventDefault();
+
+    if (timelapseViewer.style.display === 'none') {
+        // NEU: TimelapseController verwenden
+        TimelapseController.init(imageFiles);
+        TimelapseController.show();
+        timelapseButton.textContent = 'Zurück zur Live-Webcam';
+    } else {
+        TimelapseController.backToLive();
+    }
+});
+```
+
+### 9. Viewer Heartbeat anpassen
+
+Im JavaScript für den Viewer-Counter:
+
+```javascript
+function updateViewerCount() {
+    fetch(window.location.href, {
+        method: 'POST',
+        body: new URLSearchParams({action: 'viewer_heartbeat'})
+    })
+    .then(r => r.json())
+    .then(data => {
+        const display = document.getElementById('viewer-count-display');
+        const container = document.querySelector('.viewer-stat');
+
+        if (data.count && display) {
+            display.textContent = data.count;
+
+            // Mindestanzahl prüfen (aus Settings)
+            const minViewers = window.minViewersToShow || 1;
+            if (container) {
+                container.style.display = data.count >= minViewers ? 'inline-flex' : 'none';
+            }
+        }
+    });
+}
+```
+
+## Fertig!
+
+Nach diesen Änderungen hast du:
+- ✅ Timelapse mit Slider und 1x/10x/100x Geschwindigkeit
+- ✅ Rückwärts-Spulen im Timelapse
+- ✅ Tagesvideos im Player abspielen statt nur Download
+- ✅ "Zurück zu Live" Button
+- ✅ Admin-Einstellungen für Zuschauer-Anzeige
+- ✅ Mindestanzahl für Zuschauer-Anzeige
+- ✅ Video-Modus wählbar (Player/Download)
+- ✅ Alles ohne Seiten-Reload
@@ -0,0 +1,394 @@
+<?php
+/**
+ * SettingsManager - Verwaltet Admin-Einstellungen
+ * Speichert in settings.json, lädt ohne Reload
+ */
+class SettingsManager {
+    private $settingsFile;
+    private $settings = [];
+
+    public function __construct($file = null) {
+        $this->settingsFile = $file ?: (__DIR__ . '/settings.json');
+        $this->load();
+    }
+
+    private function load() {
+        if (file_exists($this->settingsFile)) {
+            $content = file_get_contents($this->settingsFile);
+            $this->settings = json_decode($content, true) ?? $this->getDefaults();
+        } else {
+            $this->settings = $this->getDefaults();
+            $this->save();
+        }
+    }
+
+    private function getDefaults() {
+        return [
+            'viewer_display' => [
+                'enabled' => true,
+                'min_viewers' => 1,
+                'update_interval' => 5 // Sekunden
+            ],
+            'video_mode' => [
+                'play_in_player' => true,
+                'allow_download' => true
+            ],
+            'timelapse' => [
+                'default_speed' => 1,
+                'available_speeds' => [1, 10, 100]
+            ],
+            // Punkt 2: UI-Anzeige Features
+            'ui_display' => [
+                'show_recommendation_banner' => true,
+                'show_qr_code' => true,
+                'show_social_media' => true,
+                'show_patrouille_suisse' => true
+            ],
+            // Punkt 3: Zoom & Timelapse
+            'zoom_timelapse' => [
+                'show_zoom_controls' => true,
+                'max_zoom_level' => 4.0,
+                'timelapse_reverse_enabled' => true,
+                'weekly_timelapse_enabled' => true // Wochenzeitraffer Button
+            ],
+            // Auto-Screenshot für Galerie
+            'auto_screenshot' => [
+                'enabled' => false,
+                'interval_minutes' => 10,
+                'max_images' => 144, // 24h bei 10min Intervall
+                'save_to_gallery' => true
+            ],
+            // Email-Sharing
+            'sharing' => [
+                'email_enabled' => false,
+                'share_link_expiry_hours' => 24
+            ],
+            // Punkt 5: Content Management
+            'content' => [
+                'guestbook_enabled' => true,
+                'gallery_enabled' => true,
+                'ai_events_enabled' => true,
+                'max_guestbook_entries' => 50
+            ],
+            // Punkt 6: Technische Settings
+            'technical' => [
+                'viewer_update_interval' => 5, // Sekunden
+                'session_timeout' => 30 // Sekunden
+            ],
+            // Punkt 7: Theme & Design
+            'theme' => [
+                'default_theme' => 'theme-legacy',
+                'show_theme_switcher' => false
+            ],
+            // Punkt 8: SEO & Meta
+            'seo' => [
+                'custom_title' => '',
+                'meta_description' => '',
+                'meta_keywords' => ''
+            ],
+            // Weather Widget
+            'weather' => [
+                'enabled' => true,
+         
+                'location' => 'Oberdürnten,CH',
+                'lat' => '47.2833',
+                'lon' => '8.7167',
+                'update_interval' => 5, // Minuten
+                'units' => 'metric' // metric (Celsius) oder imperial (Fahrenheit)
+            ],
+            // SaaS Features - alle aktivierbar/deaktivierbar
+            'saas_features' => [
+                // Multi-Tenant
+                'multi_tenant_enabled' => false, // Aktiviert DB-basierte Tenant-Verwaltung
+                'customer_management_enabled' => false,
+
+                // Onboarding
+                'self_registration_enabled' => false,
+                'email_verification_required' => true,
+                'trial_enabled' => true,
+                'trial_days' => 14,
+
+                // Billing
+                'billing_enabled' => false,
+                'stripe_enabled' => false,
+                'free_plan_available' => true,
+
+                // Dashboard
+                'tenant_dashboard_enabled' => false,
+                'analytics_enabled' => false,
+                'custom_domain_enabled' => false,
+                'custom_branding_enabled' => false,
+
+                // Landing
+                'landing_page_enabled' => false,
+                'demo_mode_enabled' => false,
+
+                // Limits (Default für Free-Plan)
+                'default_max_viewers' => 50,
+                'default_storage_mb' => 500,
+                'default_retention_days' => 7
+            ],
+            'last_updated' => null,
+            'updated_by' => null
+        ];
+    }
+
+    public function get($key = null) {
+        if ($key === null) return $this->settings;
+        $keys = explode('.', $key);
+        $value = $this->settings;
+        foreach ($keys as $k) {
+            if (!isset($value[$k])) return null;
+            $value = $value[$k];
+        }
+        return $value;
+    }
+
+    public function set($key, $value) {
+        $keys = explode('.', $key);
+        $ref = &$this->settings;
+        foreach ($keys as $i => $k) {
+            if ($i === count($keys) - 1) {
+                $ref[$k] = $value;
+            } else {
+                if (!isset($ref[$k])) $ref[$k] = [];
+                $ref = &$ref[$k];
+            }
+        }
+        $this->settings['last_updated'] = date('Y-m-d H:i:s');
+        return $this->save();
+    }
+
+    private function save() {
+        $payload = json_encode($this->settings, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
+        if ($payload === false) {
+            return false;
+        }
+
+        return file_put_contents($this->settingsFile, $payload, LOCK_EX) !== false;
+    }
+
+    // Für AJAX-Anfragen
+    public function handleAjax() {
+        if ($_SERVER['REQUEST_METHOD'] !== 'POST') return;
+        if (!isset($_POST['settings_action'])) return;
+
+        header('Content-Type: application/json');
+
+        switch ($_POST['settings_action']) {
+            case 'get':
+                echo json_encode(['success' => true, 'settings' => $this->settings]);
+                exit;
+
+            case 'update':
+                $key = $_POST['key'] ?? null;
+                $value = $_POST['value'] ?? null;
+
+                // Boolean-Werte konvertieren
+                if ($value === 'true') $value = true;
+                if ($value === 'false') $value = false;
+                if (is_numeric($value)) $value = intval($value);
+
+                if ($key && $this->set($key, $value)) {
+                    echo json_encode(['success' => true, 'message' => 'Einstellung gespeichert']);
+                } else {
+                    echo json_encode([
+                        'success' => false,
+                        'message' => 'Fehler beim Speichern. Bitte Dateirechte prüfen.'
+                    ]);
+                }
+                exit;
+        }
+    }
+
+    // Viewer-Anzeige prüfen
+    public function shouldShowViewers($currentCount) {
+        if (!$this->get('viewer_display.enabled')) return false;
+        return $currentCount >= $this->get('viewer_display.min_viewers');
+    }
+
+    // Video-Modus prüfen
+    public function shouldPlayInPlayer() {
+        return $this->get('video_mode.play_in_player') === true;
+    }
+
+    public function shouldAllowDownload() {
+        return $this->get('video_mode.allow_download') === true;
+    }
+
+    // UI Display Helper
+    public function shouldShowRecommendationBanner() {
+        return $this->get('ui_display.show_recommendation_banner') === true;
+    }
+
+    public function shouldShowQRCode() {
+        return $this->get('ui_display.show_qr_code') === true;
+    }
+
+    public function shouldShowSocialMedia() {
+        return $this->get('ui_display.show_social_media') === true;
+    }
+
+    public function shouldShowPatrouillesuisse() {
+        return $this->get('ui_display.show_patrouille_suisse') === true;
+    }
+
+    // Content Management Helper
+    public function isGuestbookEnabled() {
+        return $this->get('content.guestbook_enabled') === true;
+    }
+
+    public function isGalleryEnabled() {
+        return $this->get('content.gallery_enabled') === true;
+    }
+
+    public function isAIEventsEnabled() {
+        return $this->get('content.ai_events_enabled') === true;
+    }
+
+    public function getMaxGuestbookEntries() {
+        return $this->get('content.max_guestbook_entries') ?? 50;
+    }
+
+    // Theme Helper
+    public function getDefaultTheme() {
+        return $this->get('theme.default_theme') ?? 'theme-legacy';
+    }
+
+    public function shouldShowThemeSwitcher() {
+        return $this->get('theme.show_theme_switcher') === true;
+    }
+
+    // Technical Helper
+    public function getViewerUpdateInterval() {
+        return $this->get('technical.viewer_update_interval') ?? 5;
+    }
+
+    public function getSessionTimeout() {
+        return $this->get('technical.session_timeout') ?? 30;
+    }
+
+    // Zoom & Timelapse Helper
+    public function shouldShowZoomControls() {
+        return $this->get('zoom_timelapse.show_zoom_controls') === true;
+    }
+
+    public function getMaxZoomLevel() {
+        return $this->get('zoom_timelapse.max_zoom_level') ?? 4.0;
+    }
+
+    public function isTimelapseReverseEnabled() {
+        return $this->get('zoom_timelapse.timelapse_reverse_enabled') === true;
+    }
+
+    public function isWeeklyTimelapseEnabled() {
+        return $this->get('zoom_timelapse.weekly_timelapse_enabled') !== true;
+    }
+
+    // Auto-Screenshot Helper
+    public function isAutoScreenshotEnabled() {
+        return $this->get('auto_screenshot.enabled') === true;
+    }
+
+    public function getAutoScreenshotInterval() {
+        return $this->get('auto_screenshot.interval_minutes') ?? 10;
+    }
+
+    public function getAutoScreenshotMaxImages() {
+        return $this->get('auto_screenshot.max_images') ?? 144;
+    }
+
+    // Sharing Helper
+    public function isEmailSharingEnabled() {
+        return $this->get('sharing.email_enabled') === true;
+    }
+
+    public function getShareLinkExpiryHours() {
+        return $this->get('sharing.share_link_expiry_hours') ?? 24;
+    }
+
+    // SEO Helper
+    public function getCustomTitle() {
+        $title = $this->get('seo.custom_title');
+        return !empty($title) ? $title : null;
+    }
+
+    public function getMetaDescription() {
+        return $this->get('seo.meta_description') ?? '';
+    }
+
+    public function getMetaKeywords() {
+        return $this->get('seo.meta_keywords') ?? '';
+    }
+
+    // Weather Helper
+    public function isWeatherEnabled() {
+        return $this->get('weather.enabled') === true;
+    }
+
+ 
+
+    public function getWeatherLocation() {
+        return $this->get('weather.location') ?? 'Oberdürnten,CH';
+    }
+
+    public function getWeatherCoords() {
+        return [
+            'lat' => $this->get('weather.lat') ?? '47.2833',
+            'lon' => $this->get('weather.lon') ?? '8.7167'
+        ];
+    }
+
+    public function getWeatherUpdateInterval() {
+        return $this->get('weather.update_interval') ?? 5;
+    }
+
+    public function getWeatherUnits() {
+        return $this->get('weather.units') ?? 'metric';
+    }
+
+    // SaaS Feature Helper
+    public function isMultiTenantEnabled() {
+        return $this->get('saas_features.multi_tenant_enabled') === true;
+    }
+
+    public function isSelfRegistrationEnabled() {
+        return $this->get('saas_features.self_registration_enabled') === true;
+    }
+
+    public function isBillingEnabled() {
+        return $this->get('saas_features.billing_enabled') === true;
+    }
+
+    public function isStripeEnabled() {
+        return $this->get('saas_features.stripe_enabled') === true;
+    }
+
+    public function isTenantDashboardEnabled() {
+        return $this->get('saas_features.tenant_dashboard_enabled') === true;
+    }
+
+    public function isAnalyticsEnabled() {
+        return $this->get('saas_features.analytics_enabled') === true;
+    }
+
+    public function isCustomDomainEnabled() {
+        return $this->get('saas_features.custom_domain_enabled') === true;
+    }
+
+    public function isCustomBrandingEnabled() {
+        return $this->get('saas_features.custom_branding_enabled') === true;
+    }
+
+    public function isLandingPageEnabled() {
+        return $this->get('saas_features.landing_page_enabled') === true;
+    }
+
+    public function getTrialDays() {
+        return $this->get('saas_features.trial_days') ?? 14;
+    }
+
+    public function getDefaultMaxViewers() {
+        return $this->get('saas_features.default_max_viewers') ?? 50;
+    }
+}
@@ -0,0 +1,286 @@
+<?php
+/**
+ * WeatherManager - Holt und cached Wetterdaten von Open-Meteo (kostenlos!)
+ * Keine API Key nötig!
+ */
+class WeatherManager {
+    private $settingsManager;
+    private $cacheFile = 'weather_cache.json';
+    private $cacheTime = 300; // 5 Minuten in Sekunden
+
+    public function __construct($settingsManager) {
+        $this->settingsManager = $settingsManager;
+    }
+
+    /**
+     * Holt aktuelle Wetterdaten (cached)
+     */
+    public function getCurrentWeather() {
+        // Prüfe ob Weather aktiviert ist
+        if (!$this->settingsManager->isWeatherEnabled()) {
+            return null;
+        }
+
+        // Prüfe Cache
+        $cached = $this->getCache();
+        if ($cached !== null) {
+            return $cached;
+        }
+
+        $coords = $this->settingsManager->getWeatherCoords();
+        $apiKey = trim($this->settingsManager->getWeatherApiKey());
+
+        $weather = $apiKey !== ''
+            ? $this->fetchOpenWeather($coords, $apiKey)
+            : $this->fetchOpenMeteo($coords);
+
+        if (isset($weather['error'])) {
+            return $weather;
+        }
+
+        // Cache speichern
+        $this->saveCache($weather);
+
+        return $weather;
+    }
+
+    private function fetchOpenMeteo($coords) {
+        // Open-Meteo API URL - komplett kostenlos, kein API Key!
+        $url = "https://api.open-meteo.com/v1/forecast?" . http_build_query([
+            'latitude' => $coords['lat'],
+            'longitude' => $coords['lon'],
+            'current' => 'temperature_2m,relative_humidity_2m,precipitation,weather_code,wind_speed_10m,wind_direction_10m,pressure_msl,cloud_cover',
+            'timezone' => 'Europe/Zurich'
+        ]);
+
+        $response = $this->fetchUrl($url);
+        if ($response === null) {
+            return ['error' => 'API Fehler'];
+        }
+
+        $data = json_decode($response, true);
+        if (!$data || !isset($data['current'])) {
+            return ['error' => 'Ungültige API Antwort'];
+        }
+
+        $current = $data['current'];
+
+        return [
+            'temp' => round($current['temperature_2m'], 1),
+            'feels_like' => round($current['temperature_2m'], 1), // Open-Meteo hat keine "feels like"
+            'humidity' => $current['relative_humidity_2m'],
+            'pressure' => round($current['pressure_msl'], 0),
+            'wind_speed' => round($current['wind_speed_10m'], 1), // Schon in km/h!
+            'wind_deg' => $current['wind_direction_10m'],
+            'wind_direction' => $this->getWindDirection($current['wind_direction_10m']),
+            'clouds' => $current['cloud_cover'] ?? 0,
+            'description' => $this->getWeatherDescription($current['weather_code']),
+            'icon' => $this->getWeatherIcon($current['weather_code']),
+            'rain_1h' => $current['precipitation'] ?? 0,
+            'snow_1h' => 0, // Open-Meteo gibt Niederschlag gesamt
+            'location' => $this->settingsManager->getWeatherLocation(),
+            'timestamp' => time()
+        ];
+    }
+
+    private function fetchOpenWeather($coords, $apiKey) {
+        $units = $this->settingsManager->getWeatherUnits();
+        $url = "https://api.openweathermap.org/data/2.5/weather?" . http_build_query([
+            'lat' => $coords['lat'],
+            'lon' => $coords['lon'],
+            'appid' => $apiKey,
+            'units' => $units,
+            'lang' => 'de'
+        ]);
+
+        $response = $this->fetchUrl($url);
+        if ($response === null) {
+            return ['error' => 'API Fehler'];
+        }
+
+        $data = json_decode($response, true);
+        if (!$data || !isset($data['main'], $data['weather'][0], $data['wind'])) {
+            return ['error' => 'Ungültige API Antwort'];
+        }
+
+        $windSpeed = $data['wind']['speed'];
+        if ($units === 'metric') {
+            $windSpeed = $windSpeed * 3.6; // m/s -> km/h
+        }
+
+        return [
+            'temp' => round($data['main']['temp'], 1),
+            'feels_like' => round($data['main']['feels_like'], 1),
+            'humidity' => $data['main']['humidity'],
+            'pressure' => round($data['main']['pressure'], 0),
+            'wind_speed' => round($windSpeed, 1),
+            'wind_deg' => $data['wind']['deg'] ?? 0,
+            'wind_direction' => $this->getWindDirection($data['wind']['deg'] ?? 0),
+            'clouds' => $data['clouds']['all'] ?? 0,
+            'description' => ucfirst($data['weather'][0]['description']),
+            'icon' => $data['weather'][0]['icon'] ?? '01d',
+            'rain_1h' => $data['rain']['1h'] ?? 0,
+            'snow_1h' => $data['snow']['1h'] ?? 0,
+            'location' => $data['name'] ?? $this->settingsManager->getWeatherLocation(),
+            'timestamp' => time()
+        ];
+    }
+
+    private function fetchUrl($url) {
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
+        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
+
+        $response = curl_exec($ch);
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($httpCode !== 200 || !$response) {
+            return null;
+        }
+
+        return $response;
+    }
+
+    /**
+     * Wandelt WMO Weather Code in Beschreibung um
+     * https://open-meteo.com/en/docs
+     */
+    private function getWeatherDescription($code) {
+        $descriptions = [
+            0 => 'Klar',
+            1 => 'Überwiegend klar',
+            2 => 'Teilweise bewölkt',
+            3 => 'Bewölkt',
+            45 => 'Neblig',
+            48 => 'Nebel mit Reifablagerung',
+            51 => 'Leichter Nieselregen',
+            53 => 'Mäßiger Nieselregen',
+            55 => 'Dichter Nieselregen',
+            61 => 'Leichter Regen',
+            63 => 'Mäßiger Regen',
+            65 => 'Starker Regen',
+            71 => 'Leichter Schneefall',
+            73 => 'Mäßiger Schneefall',
+            75 => 'Starker Schneefall',
+            77 => 'Schneegraupeln',
+            80 => 'Leichte Regenschauer',
+            81 => 'Mäßige Regenschauer',
+            82 => 'Starke Regenschauer',
+            85 => 'Leichte Schneeschauer',
+            86 => 'Starke Schneeschauer',
+            95 => 'Gewitter',
+            96 => 'Gewitter mit leichtem Hagel',
+            99 => 'Gewitter mit starkem Hagel'
+        ];
+
+        return $descriptions[$code] ?? 'Unbekannt';
+    }
+
+    /**
+     * Wandelt WMO Weather Code in Icon-Code um (OpenWeatherMap kompatibel)
+     */
+    private function getWeatherIcon($code) {
+        if ($code == 0) return '01d'; // Klar
+        if ($code >= 1 && $code <= 2) return '02d'; // Teilweise bewölkt
+        if ($code == 3) return '04d'; // Bewölkt
+        if ($code >= 45 && $code <= 48) return '50d'; // Nebel
+        if ($code >= 51 && $code <= 55) return '09d'; // Nieselregen
+        if ($code >= 61 && $code <= 65) return '10d'; // Regen
+        if ($code >= 71 && $code <= 77) return '13d'; // Schnee
+        if ($code >= 80 && $code <= 82) return '09d'; // Regenschauer
+        if ($code >= 85 && $code <= 86) return '13d'; // Schneeschauer
+        if ($code >= 95 && $code <= 99) return '11d'; // Gewitter
+
+        return '01d'; // Default
+    }
+
+    /**
+     * Wandelt Windrichtung (Grad) in Kompassrichtung um
+     */
+    private function getWindDirection($deg) {
+        $directions = ['N', 'NNO', 'NO', 'ONO', 'O', 'OSO', 'SO', 'SSO', 'S', 'SSW', 'SW', 'WSW', 'W', 'WNW', 'NW', 'NNW'];
+        $index = round($deg / 22.5) % 16;
+        return $directions[$index];
+    }
+
+    /**
+     * Holt Daten aus Cache (wenn noch gültig)
+     */
+    private function getCache() {
+        if (!file_exists($this->cacheFile)) {
+            return null;
+        }
+
+        $content = file_get_contents($this->cacheFile);
+        $data = json_decode($content, true);
+
+        if (!$data || !isset($data['timestamp'])) {
+            return null;
+        }
+
+        // Fehler nicht aus Cache zurückgeben (z.B. alter "API Key fehlt" Error)
+        if (isset($data['error'])) {
+            @unlink($this->cacheFile); // Cache mit Fehler löschen
+            return null;
+        }
+
+        // Update-Intervall aus Settings holen (in Minuten)
+        $updateInterval = $this->settingsManager->getWeatherUpdateInterval() * 60; // Minuten -> Sekunden
+
+        // Prüfe ob Cache noch gültig
+        if (time() - $data['timestamp'] < $updateInterval) {
+            return $data;
+        }
+
+        return null;
+    }
+
+    /**
+     * Speichert Daten im Cache (nur wenn kein Fehler)
+     */
+    private function saveCache($data) {
+        // Fehler nicht cachen
+        if (isset($data['error'])) {
+            return;
+        }
+        $json = json_encode($data, JSON_PRETTY_PRINT);
+        file_put_contents($this->cacheFile, $json, LOCK_EX);
+    }
+
+    /**
+     * Gibt Wetter-Icon-Emoji zurück
+     */
+    public function getWeatherEmoji($iconCode) {
+        $map = [
+            '01d' => '☀️', '01n' => '🌙',
+            '02d' => '⛅', '02n' => '☁️',
+            '03d' => '☁️', '03n' => '☁️',
+            '04d' => '☁️', '04n' => '☁️',
+            '09d' => '🌧️', '09n' => '🌧️',
+            '10d' => '🌦️', '10n' => '🌧️',
+            '11d' => '⛈️', '11n' => '⛈️',
+            '13d' => '❄️', '13n' => '❄️',
+            '50d' => '🌫️', '50n' => '🌫️'
+        ];
+        return $map[$iconCode] ?? '🌤️';
+    }
+
+    /**
+     * AJAX Handler für Wetter-Updates
+     */
+    public function handleAjax() {
+        if ($_SERVER['REQUEST_METHOD'] !== 'GET') return;
+        if (!isset($_GET['weather_action'])) return;
+
+        header('Content-Type: application/json');
+
+        if ($_GET['weather_action'] === 'get') {
+            $weather = $this->getCurrentWeather();
+            echo json_encode(['success' => true, 'data' => $weather]);
+            exit;
+        }
+    }
+}
@@ -0,0 +1,104 @@
+<?php
+/**
+ * Auto-Screenshot API
+ *
+ * Kann als Cron-Job aufgerufen werden:
+ * */10 * * * * curl -s http://localhost/api/auto-screenshot.php?key=YOUR_SECRET_KEY
+ *
+ * Oder via Webhook/Timer
+ */
+
+require_once dirname(__DIR__) . '/vendor/autoload.php';
+require_once dirname(__DIR__) . '/SettingsManager.php';
+
+header('Content-Type: application/json');
+
+$settingsManager = new SettingsManager();
+
+// Prüfe ob Feature aktiviert
+if (!$settingsManager->isAutoScreenshotEnabled()) {
+    echo json_encode(['success' => false, 'error' => 'Auto-Screenshot deaktiviert']);
+    exit;
+}
+
+// Optionale API-Key Validierung
+$configFile = dirname(__DIR__) . '/config.php';
+if (file_exists($configFile)) {
+    $config = require $configFile;
+    $apiKey = $config['auto_screenshot_key'] ?? '';
+
+    if (!empty($apiKey) && ($_GET['key'] ?? '') !== $apiKey) {
+        http_response_code(403);
+        echo json_encode(['success' => false, 'error' => 'Ungültiger API-Key']);
+        exit;
+    }
+}
+
+// Galerie-Verzeichnis erstellen
+$galleryDir = dirname(__DIR__) . '/gallery/auto/';
+if (!is_dir($galleryDir)) {
+    mkdir($galleryDir, 0755, true);
+}
+
+// Screenshot-Dateiname
+$filename = 'auto_' . date('Y-m-d_H-i-s') . '.jpg';
+$filepath = $galleryDir . $filename;
+
+// Video-Stream URL
+$streamUrl = 'test_video.m3u8';
+$logoPath = dirname(__DIR__) . '/logo.png';
+
+// FFmpeg-Befehl zum Erstellen des Screenshots
+$command = sprintf(
+    'ffmpeg -i %s -vframes 1 -q:v 2 %s 2>&1',
+    escapeshellarg($streamUrl),
+    escapeshellarg($filepath)
+);
+
+exec($command, $output, $returnVar);
+
+if ($returnVar !== 0 || !file_exists($filepath)) {
+    echo json_encode([
+        'success' => false,
+        'error' => 'Screenshot fehlgeschlagen',
+        'command' => $command,
+        'output' => implode("\n", $output)
+    ]);
+    exit;
+}
+
+// Alte Screenshots aufräumen (max. Anzahl einhalten)
+$maxImages = $settingsManager->getAutoScreenshotMaxImages();
+$existingFiles = glob($galleryDir . 'auto_*.jpg');
+rsort($existingFiles); // Neueste zuerst
+
+if (count($existingFiles) > $maxImages) {
+    $filesToDelete = array_slice($existingFiles, $maxImages);
+    foreach ($filesToDelete as $file) {
+        @unlink($file);
+    }
+}
+
+// Metadaten speichern
+$metaFile = $galleryDir . 'metadata.json';
+$metadata = [];
+if (file_exists($metaFile)) {
+    $metadata = json_decode(file_get_contents($metaFile), true) ?? [];
+}
+
+$metadata[$filename] = [
+    'created_at' => date('Y-m-d H:i:s'),
+    'timestamp' => time(),
+    'size' => filesize($filepath)
+];
+
+// Nur die letzten maxImages behalten
+$metadata = array_slice($metadata, -$maxImages, null, true);
+file_put_contents($metaFile, json_encode($metadata, JSON_PRETTY_PRINT));
+
+echo json_encode([
+    'success' => true,
+    'file' => $filename,
+    'path' => '/gallery/auto/' . $filename,
+    'total_images' => count(glob($galleryDir . 'auto_*.jpg'))
+]);
@@ -0,0 +1,97 @@
+<?php
+/**
+ * Gallery API
+ *
+ * GET /api/gallery.php - Liste alle Galerie-Bilder
+ * GET /api/gallery.php?date=2024-01-30 - Bilder eines bestimmten Datums
+ * GET /api/gallery.php?from=2024-01-01&to=2024-01-31 - Bilder in einem Zeitraum
+ */
+
+require_once dirname(__DIR__) . '/vendor/autoload.php';
+require_once dirname(__DIR__) . '/SettingsManager.php';
+
+header('Content-Type: application/json');
+header('Access-Control-Allow-Origin: *');
+
+$settingsManager = new SettingsManager();
+
+$galleryDir = dirname(__DIR__) . '/gallery/auto/';
+
+// Prüfe ob Galerie existiert
+if (!is_dir($galleryDir)) {
+    echo json_encode(['success' => true, 'images' => [], 'total' => 0]);
+    exit;
+}
+
+// Parameter
+$date = $_GET['date'] ?? null;
+$from = $_GET['from'] ?? null;
+$to = $_GET['to'] ?? null;
+$limit = min(100, (int)($_GET['limit'] ?? 50));
+$offset = max(0, (int)($_GET['offset'] ?? 0));
+
+// Alle Bilder holen
+$allFiles = glob($galleryDir . 'auto_*.jpg');
+rsort($allFiles); // Neueste zuerst
+
+$images = [];
+
+foreach ($allFiles as $file) {
+    $filename = basename($file);
+    // Extrahiere Datum aus Dateinamen: auto_2024-01-30_14-30-00.jpg
+    if (preg_match('/auto_(\d{4}-\d{2}-\d{2})_(\d{2}-\d{2}-\d{2})\.jpg/', $filename, $matches)) {
+        $fileDate = $matches[1];
+        $fileTime = str_replace('-', ':', $matches[2]);
+
+        // Datumsfilter
+        if ($date !== null && $fileDate !== $date) {
+            continue;
+        }
+
+        if ($from !== null && $fileDate < $from) {
+            continue;
+        }
+
+        if ($to !== null && $fileDate > $to) {
+            continue;
+        }
+
+        $images[] = [
+            'filename' => $filename,
+            'path' => '/gallery/auto/' . $filename,
+            'date' => $fileDate,
+            'time' => $fileTime,
+            'datetime' => $fileDate . ' ' . $fileTime,
+            'timestamp' => strtotime($fileDate . ' ' . $fileTime),
+            'size' => filesize($file)
+        ];
+    }
+}
+
+$total = count($images);
+
+// Pagination
+$images = array_slice($images, $offset, $limit);
+
+// Verfügbare Daten (für Kalender/Filter)
+$availableDates = [];
+foreach (glob($galleryDir . 'auto_*.jpg') as $file) {
+    if (preg_match('/auto_(\d{4}-\d{2}-\d{2})/', basename($file), $m)) {
+        $availableDates[$m[1]] = ($availableDates[$m[1]] ?? 0) + 1;
+    }
+}
+krsort($availableDates);
+
+echo json_encode([
+    'success' => true,
+    'images' => $images,
+    'total' => $total,
+    'offset' => $offset,
+    'limit' => $limit,
+    'available_dates' => $availableDates,
+    'filters' => [
+        'date' => $date,
+        'from' => $from,
+        'to' => $to
+    ]
+]);
@@ -0,0 +1,315 @@
+<?php
+/**
+ * Share API - Teilen von Bildern/Videos per E-Mail
+ *
+ * POST /api/share.php
+ * Body: { email: "friend@example.com", type: "video|image", path: "/videos/...", message: "Schau dir das an!" }
+ */
+
+use PHPMailer\PHPMailer\PHPMailer;
+use PHPMailer\PHPMailer\Exception;
+
+require_once dirname(__DIR__) . '/vendor/autoload.php';
+require_once dirname(__DIR__) . '/SettingsManager.php';
+
+header('Content-Type: application/json');
+header('Access-Control-Allow-Origin: *');
+header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
+header('Access-Control-Allow-Headers: Content-Type');
+
+if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
+    http_response_code(200);
+    exit;
+}
+
+$settingsManager = new SettingsManager();
+
+// Prüfe ob Feature aktiviert
+if (!$settingsManager->isEmailSharingEnabled()) {
+    echo json_encode(['success' => false, 'error' => 'E-Mail-Sharing ist deaktiviert']);
+    exit;
+}
+
+// Config laden
+$configFile = dirname(__DIR__) . '/config.php';
+$config = file_exists($configFile) ? require $configFile : [];
+$mailConfig = $config['mail'] ?? [];
+
+if (empty($mailConfig['host']) || empty($mailConfig['username'])) {
+    echo json_encode(['success' => false, 'error' => 'E-Mail-Server nicht konfiguriert']);
+    exit;
+}
+
+// === GET: Share-Link generieren ===
+if ($_SERVER['REQUEST_METHOD'] === 'GET' && isset($_GET['generate'])) {
+    $path = $_GET['path'] ?? '';
+    $type = $_GET['type'] ?? 'video';
+
+    if (empty($path)) {
+        echo json_encode(['success' => false, 'error' => 'Kein Pfad angegeben']);
+        exit;
+    }
+
+    // Token generieren
+    $expiryHours = $settingsManager->getShareLinkExpiryHours();
+    $expiry = time() + ($expiryHours * 3600);
+    $token = hash_hmac('sha256', $path . $expiry, session_id() . 'share_secret');
+
+    // Share-Link speichern
+    $shareDir = dirname(__DIR__) . '/data/shares/';
+    if (!is_dir($shareDir)) {
+        mkdir($shareDir, 0755, true);
+    }
+
+    $shareId = bin2hex(random_bytes(16));
+    $shareData = [
+        'id' => $shareId,
+        'path' => $path,
+        'type' => $type,
+        'token' => $token,
+        'expiry' => $expiry,
+        'created_at' => date('Y-m-d H:i:s')
+    ];
+
+    file_put_contents($shareDir . $shareId . '.json', json_encode($shareData));
+
+    // URL generieren
+    $baseUrl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http')
+        . '://' . $_SERVER['HTTP_HOST'];
+    $shareUrl = $baseUrl . '/api/share.php?view=' . $shareId;
+
+    echo json_encode([
+        'success' => true,
+        'share_url' => $shareUrl,
+        'share_id' => $shareId,
+        'expires_at' => date('Y-m-d H:i:s', $expiry)
+    ]);
+    exit;
+}
+
+// === GET: Share-Link anzeigen ===
+if ($_SERVER['REQUEST_METHOD'] === 'GET' && isset($_GET['view'])) {
+    $shareId = preg_replace('/[^a-f0-9]/', '', $_GET['view']);
+    $shareFile = dirname(__DIR__) . '/data/shares/' . $shareId . '.json';
+
+    if (!file_exists($shareFile)) {
+        header('Content-Type: text/html; charset=utf-8');
+        echo '<!DOCTYPE html><html><head><title>Link ungültig</title></head><body style="font-family:sans-serif;text-align:center;padding:50px;"><h1>❌ Link nicht gefunden</h1><p>Dieser Share-Link existiert nicht oder wurde bereits gelöscht.</p></body></html>';
+        exit;
+    }
+
+    $shareData = json_decode(file_get_contents($shareFile), true);
+
+    // Ablauf prüfen
+    if (time() > $shareData['expiry']) {
+        @unlink($shareFile);
+        header('Content-Type: text/html; charset=utf-8');
+        echo '<!DOCTYPE html><html><head><title>Link abgelaufen</title></head><body style="font-family:sans-serif;text-align:center;padding:50px;"><h1>⏰ Link abgelaufen</h1><p>Dieser Share-Link ist abgelaufen. Bitte fordere einen neuen Link an.</p></body></html>';
+        exit;
+    }
+
+    // Datei existiert?
+    $filePath = dirname(__DIR__) . $shareData['path'];
+    if (!file_exists($filePath)) {
+        header('Content-Type: text/html; charset=utf-8');
+        echo '<!DOCTYPE html><html><head><title>Datei nicht gefunden</title></head><body style="font-family:sans-serif;text-align:center;padding:50px;"><h1>📭 Datei nicht gefunden</h1><p>Die geteilte Datei existiert nicht mehr.</p></body></html>';
+        exit;
+    }
+
+    // Redirect zur Datei oder HTML-Seite mit eingebettetem Player
+    $isVideo = in_array(pathinfo($filePath, PATHINFO_EXTENSION), ['mp4', 'webm', 'mov']);
+    $isImage = in_array(pathinfo($filePath, PATHINFO_EXTENSION), ['jpg', 'jpeg', 'png', 'gif', 'webp']);
+
+    $siteName = $config['app']['name'] ?? 'Aurora Livecam';
+    $baseUrl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http')
+        . '://' . $_SERVER['HTTP_HOST'];
+
+    header('Content-Type: text/html; charset=utf-8');
+    echo '<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Geteilte ' . ($isVideo ? 'Video' : 'Bild') . ' - ' . htmlspecialchars($siteName) . '</title>
+    <style>
+        * { margin: 0; padding: 0; box-sizing: border-box; }
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            justify-content: center;
+            padding: 20px;
+        }
+        .container {
+            background: white;
+            border-radius: 16px;
+            padding: 30px;
+            max-width: 900px;
+            width: 100%;
+            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
+        }
+        h1 { font-size: 1.5rem; margin-bottom: 20px; color: #333; }
+        video, img {
+            width: 100%;
+            max-height: 70vh;
+            object-fit: contain;
+            border-radius: 8px;
+            background: #000;
+        }
+        .download-btn {
+            display: inline-block;
+            margin-top: 20px;
+            padding: 12px 30px;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            color: white;
+            text-decoration: none;
+            border-radius: 8px;
+            font-weight: 600;
+        }
+        .download-btn:hover { opacity: 0.9; }
+        .footer {
+            margin-top: 20px;
+            color: rgba(255,255,255,0.8);
+            font-size: 0.9rem;
+        }
+        .footer a { color: white; }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>📤 Geteilte' . ($isVideo ? 's Video' : 's Bild') . '</h1>';
+
+    if ($isVideo) {
+        echo '<video controls autoplay><source src="' . htmlspecialchars($shareData['path']) . '" type="video/mp4">Ihr Browser unterstützt kein Video.</video>';
+    } else {
+        echo '<img src="' . htmlspecialchars($shareData['path']) . '" alt="Geteiltes Bild">';
+    }
+
+    echo '
+        <a href="' . htmlspecialchars($shareData['path']) . '" download class="download-btn">⬇️ Herunterladen</a>
+    </div>
+    <div class="footer">
+        Geteilt von <a href="' . $baseUrl . '">' . htmlspecialchars($siteName) . '</a>
+    </div>
+</body>
+</html>';
+    exit;
+}
+
+// === POST: E-Mail senden ===
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405);
+    echo json_encode(['success' => false, 'error' => 'Nur POST erlaubt']);
+    exit;
+}
+
+// JSON-Body parsen
+$input = json_decode(file_get_contents('php://input'), true);
+if (!$input) {
+    $input = $_POST;
+}
+
+$email = filter_var($input['email'] ?? '', FILTER_VALIDATE_EMAIL);
+$path = $input['path'] ?? '';
+$type = $input['type'] ?? 'video';
+$message = htmlspecialchars($input['message'] ?? '');
+$senderName = htmlspecialchars($input['sender_name'] ?? 'Ein Freund');
+
+if (!$email) {
+    echo json_encode(['success' => false, 'error' => 'Ungültige E-Mail-Adresse']);
+    exit;
+}
+
+if (empty($path)) {
+    echo json_encode(['success' => false, 'error' => 'Kein Pfad angegeben']);
+    exit;
+}
+
+// Share-Link generieren
+$expiryHours = $settingsManager->getShareLinkExpiryHours();
+$expiry = time() + ($expiryHours * 3600);
+
+$shareDir = dirname(__DIR__) . '/data/shares/';
+if (!is_dir($shareDir)) {
+    mkdir($shareDir, 0755, true);
+}
+
+$shareId = bin2hex(random_bytes(16));
+$shareData = [
+    'id' => $shareId,
+    'path' => $path,
+    'type' => $type,
+    'expiry' => $expiry,
+    'created_at' => date('Y-m-d H:i:s'),
+    'shared_to' => $email
+];
+
+file_put_contents($shareDir . $shareId . '.json', json_encode($shareData));
+
+$baseUrl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http')
+    . '://' . $_SERVER['HTTP_HOST'];
+$shareUrl = $baseUrl . '/api/share.php?view=' . $shareId;
+$siteName = $config['app']['name'] ?? 'Aurora Livecam';
+
+// E-Mail senden
+try {
+    $mail = new PHPMailer(true);
+
+    // SMTP Konfiguration
+    $mail->isSMTP();
+    $mail->Host = $mailConfig['host'];
+    $mail->SMTPAuth = true;
+    $mail->Username = $mailConfig['username'];
+    $mail->Password = $mailConfig['password'];
+    $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
+    $mail->Port = $mailConfig['port'] ?? 587;
+    $mail->CharSet = 'UTF-8';
+
+    // Absender/Empfänger
+    $mail->setFrom($mailConfig['from_address'], $mailConfig['from_name'] ?? $siteName);
+    $mail->addAddress($email);
+
+    // Inhalt
+    $mail->isHTML(true);
+    $mail->Subject = $senderName . ' hat ' . ($type === 'video' ? 'ein Video' : 'ein Bild') . ' mit dir geteilt';
+
+    $mail->Body = '
+    <div style="font-family: -apple-system, BlinkMacSystemFont, \'Segoe UI\', Roboto, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px;">
+        <div style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); padding: 30px; border-radius: 12px 12px 0 0; text-align: center;">
+            <h1 style="color: white; margin: 0; font-size: 24px;">📤 ' . htmlspecialchars($siteName) . '</h1>
+        </div>
+        <div style="background: #f7f7f7; padding: 30px; border-radius: 0 0 12px 12px;">
+            <p style="font-size: 18px; color: #333; margin-bottom: 20px;">
+                <strong>' . htmlspecialchars($senderName) . '</strong> hat ' . ($type === 'video' ? 'ein Video' : 'ein Bild') . ' mit dir geteilt!
+            </p>
+            ' . (!empty($message) ? '<div style="background: white; padding: 15px; border-radius: 8px; border-left: 4px solid #667eea; margin-bottom: 20px;"><em>"' . nl2br($message) . '"</em></div>' : '') . '
+            <a href="' . htmlspecialchars($shareUrl) . '" style="display: inline-block; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 15px 30px; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 16px;">
+                ▶️ Jetzt ansehen
+            </a>
+            <p style="margin-top: 20px; color: #888; font-size: 12px;">
+                Dieser Link ist ' . $expiryHours . ' Stunden gültig.
+            </p>
+        </div>
+    </div>';
+
+    $mail->AltBody = $senderName . ' hat ' . ($type === 'video' ? 'ein Video' : 'ein Bild') . ' mit dir geteilt: ' . $shareUrl;
+
+    $mail->send();
+
+    echo json_encode([
+        'success' => true,
+        'message' => 'E-Mail wurde gesendet',
+        'share_url' => $shareUrl
+    ]);
+
+} catch (Exception $e) {
+    error_log('Share email error: ' . $e->getMessage());
+    echo json_encode([
+        'success' => false,
+        'error' => 'E-Mail konnte nicht gesendet werden',
+        'share_url' => $shareUrl // URL trotzdem zurückgeben
+    ]);
+}
--- a/Show More
+++ b/Show More