/* Mail Fine-Tuning App Styles */

:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --accent-primary: #4a9eff;
    --accent-success: #4caf50;
    --accent-warning: #ff9800;
    --accent-danger: #f44336;
    --border-color: #444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-secondary);
    padding: 2rem 1rem;
    border-right: 1px solid var(--border-color);
}

.sidebar h1 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--accent-primary);
}

.nav-menu {
    list-style: none;
}

.nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--accent-primary);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: #3a8eef;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #4a4a4a;
}

.btn-success {
    background: var(--accent-success);
    color: white;
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Upload Section */
.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 2rem;
}

.dropzone:hover {
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
}

.dropzone.dragover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Mail List */
.mail-list {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1rem;
    max-height: 500px;
    overflow-y: auto;
}

.mail-item {
    background: var(--bg-tertiary);
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    border-left: 3px solid transparent;
}

.mail-item.labeled {
    border-left-color: var(--accent-success);
}

.mail-item.unlabeled {
    border-left-color: var(--accent-warning);
}

.mail-item.skip {
    border-left-color: var(--text-secondary);
}

.mail-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.mail-subject {
    font-weight: bold;
    color: var(--text-primary);
}

.mail-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.mail-body {
    font-size: 0.9rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.mail-actions {
    margin-top: 0.5rem;
    display: flex;
    gap: 0.5rem;
}

.mail-actions button {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

/* Labeling Interface */
#labeling-container {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    margin-top: 1rem;
}

.current-mail {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Progress Bar */
.progress-bar {
    background: var(--bg-secondary);
    border-radius: 4px;
    height: 30px;
    position: relative;
    margin-bottom: 1rem;
    overflow: hidden;
}

.progress-fill {
    background: var(--accent-primary);
    height: 100%;
    transition: width 0.3s;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: bold;
    color: var(--text-primary);
}

/* Keyboard Hints */
.keyboard-hints {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

kbd {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    border: 1px solid var(--border-color);
    font-family: monospace;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Export Section */
.export-section {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.export-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.export-controls input {
    width: 80px;
    padding: 0.4rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
}

#export-result {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    display: none;
}

#export-result.show {
    display: block;
}

/* Models List */
.models-list {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.model-item {
    background: var(--bg-tertiary);
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.model-download {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.info-text {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.code-example {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 4px;
    font-family: monospace;
    color: var(--accent-primary);
    margin-top: 1rem;
}

/* Training Status */
.training-status {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.status-item {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 4px;
}

.status-item label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
}

.status-item .value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-primary);
}

/* Training Charts */
.training-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.chart-container {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.chart-container h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

canvas {
    width: 100% !important;
    height: 200px !important;
}

/* Evaluation */
.comparison-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.result-box {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
}

.result-content {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 4px;
    min-height: 150px;
    white-space: pre-wrap;
    font-family: monospace;
    font-size: 0.9rem;
}

/* Filter Controls */
.filter-controls {
    display: flex;
    gap: 1rem;
}

.filter-controls select {
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-primary);
    padding: 1rem 1.5rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left-color: var(--accent-success);
}

.toast.error {
    border-left-color: var(--accent-danger);
}

.toast.warning {
    border-left-color: var(--accent-warning);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4a4a4a;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }

    .comparison-results,
    .training-charts {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}