/* ==========================================================================
   Mon Studio Vidéo - Styles Timeline
   Gestion visuelle de la timeline de montage
   ========================================================================== */

/* --------------------------------------------------------------------------
   Timeline Section
   -------------------------------------------------------------------------- */
.timeline-section {
    flex-shrink: 0;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* --------------------------------------------------------------------------
   Timeline Tools
   -------------------------------------------------------------------------- */
.timeline-tools {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    align-items: center;
    flex-wrap: wrap;
}

.zoom-controls {
    display: flex;
    gap: var(--spacing-xs);
    margin-left: auto;
}

/* --------------------------------------------------------------------------
   Timeline Container
   -------------------------------------------------------------------------- */
.timeline-container {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    touch-action: pan-x pinch-zoom;
}

/* --------------------------------------------------------------------------
   Time Ruler
   -------------------------------------------------------------------------- */
.time-ruler {
    position: sticky;
    top: 0;
    left: 0;
    height: 32px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    z-index: 10;
}

.time-marker {
    position: absolute;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateX(-50%);
}

.time-marker-line {
    width: 1px;
    height: 8px;
    background: var(--text-muted);
}

.time-marker.major .time-marker-line {
    height: 12px;
    background: var(--text-secondary);
}

.time-marker-label {
    font-size: 0.625rem;
    color: var(--text-muted);
    font-family: 'Courier New', monospace;
    margin-bottom: 2px;
}

/* --------------------------------------------------------------------------
   Playhead
   -------------------------------------------------------------------------- */
.playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 60px; /* Position initiale = largeur du label */
    width: 3px;
    z-index: 20;
    pointer-events: none;
    transform: translateX(-50%);
}

.playhead-handle {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: var(--color-danger);
    border-radius: 50% 50% 0 0;
    cursor: grab;
    pointer-events: auto;
    transition: transform var(--transition-fast);
    z-index: 21;
}

.playhead-handle::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--color-danger);
}

.playhead-handle:hover,
.playhead-handle:active {
    transform: translateX(-50%) scale(1.2);
}

.playhead-handle:active {
    cursor: grabbing;
}

.playhead-line {
    position: absolute;
    top: 24px;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: var(--color-danger);
    transform: translateX(-50%);
    box-shadow: 0 0 4px var(--color-danger);
}

/* --------------------------------------------------------------------------
   Timeline Tracks
   -------------------------------------------------------------------------- */
.timeline-tracks {
    position: relative;
    min-height: 180px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) transparent;
}

.timeline-tracks::-webkit-scrollbar {
    height: 8px;
}

.timeline-tracks::-webkit-scrollbar-track {
    background: transparent;
}

.timeline-tracks::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Track
   -------------------------------------------------------------------------- */
.track {
    display: flex;
    min-height: 60px;
    border-bottom: 1px solid var(--border-color);
}

.track:last-child {
    border-bottom: none;
}

.track-label {
    width: 60px;
    min-width: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    background: rgba(0, 0, 0, 0.2);
    border-right: 1px solid var(--border-color);
    font-size: 1.25rem;
    flex-shrink: 0;
    position: relative;
}

/* Bouton de visibilité de piste */
.btn-track-visibility {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    padding: 0;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 5;
}

.btn-track-visibility:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: scale(1.1);
}

.btn-track-visibility:active {
    transform: scale(0.95);
}

.btn-track-visibility .visibility-icon {
    font-size: 0.75rem;
    line-height: 1;
}

/* État masqué */
.btn-track-visibility.hidden-track {
    background: rgba(239, 68, 68, 0.5);
}

/* Piste masquée - effet visuel */
.track.track-hidden {
    opacity: 0.4;
}

.track.track-hidden .track-content {
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 5px,
        rgba(0, 0, 0, 0.1) 5px,
        rgba(0, 0, 0, 0.1) 10px
    );
}

.track.track-hidden .clip {
    filter: grayscale(70%);
}

.track.track-hidden .track-label::after {
    content: '🚫';
    position: absolute;
    bottom: 2px;
    font-size: 0.65rem;
    opacity: 0.8;
}

.track-content {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs);
    min-width: 600px; /* Largeur minimale pour scroll horizontal */
}

.track-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    pointer-events: none;
    transition: all var(--transition-fast);
}

.track-content:has(.clip) .track-placeholder {
    display: none;
}

/* --------------------------------------------------------------------------
   Track Types - Couleurs spécifiques
   -------------------------------------------------------------------------- */
.track-video .track-label {
    background: rgba(99, 102, 241, 0.3);
}

.track-video .clip {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.track-audio .track-label {
    background: rgba(52, 211, 153, 0.3);
}

.track-audio .clip {
    background: linear-gradient(135deg, var(--color-success) 0%, #10b981 100%);
}

/* Track Audio2 (Voix-off) */
.track-audio2 .track-label {
    background: rgba(139, 92, 246, 0.3);
}

.track-audio2 .clip {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.track-audio2 .track-content.drag-over {
    background: rgba(139, 92, 246, 0.3);
}

/* Track Audio3 (Effets sonores) */
.track-audio3 .track-label {
    background: rgba(236, 72, 153, 0.3);
}

.track-audio3 .clip {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
}

.track-audio3 .track-content.drag-over {
    background: rgba(236, 72, 153, 0.3);
}

.track-text .track-label {
    background: rgba(244, 114, 182, 0.3);
}

.track-text .clip {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
}

/* Track Stickers (Emojis) */
.track-stickers .track-label {
    background: rgba(251, 191, 36, 0.3);
}

.track-stickers .clip {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
}

.track-stickers .track-content.drag-over {
    background: rgba(251, 191, 36, 0.3);
}

/* --------------------------------------------------------------------------
   Clips
   -------------------------------------------------------------------------- */
.clip {
    position: relative;
    height: 48px;
    min-width: 60px;
    border-radius: var(--radius-sm);
    cursor: grab;
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-sm);
    overflow: hidden;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.clip:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.clip:active {
    cursor: grabbing;
}

.clip.selected {
    box-shadow: 0 0 0 3px var(--color-accent), var(--shadow-md);
    z-index: 5;
}

.clip.dragging {
    opacity: 0.7;
    transform: scale(1.05);
    z-index: 100;
}

/* Désactiver le scroll pendant le drag d'un clip */
.timeline-tracks.is-dragging-clip {
    overflow-x: hidden !important;
    touch-action: none;
}

.timeline-container.is-dragging-clip {
    touch-action: none;
}

/* Clip Thumbnail (pour vidéos) */
.clip-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}

/* Clip Waveform (pour audio) */
.clip-waveform {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

/* Clip Info */
.clip-info {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-width: 100%;
    overflow: hidden;
}

.clip-name {
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.clip-duration {
    font-size: 0.625rem;
    opacity: 0.8;
    font-family: 'Courier New', monospace;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Clip Handles (pour redimensionner) */
.clip-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 12px;
    cursor: ew-resize;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 10;
}

.clip:hover .clip-handle {
    opacity: 1;
}

.clip-handle::before {
    content: '';
    width: 4px;
    height: 24px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 2px;
}

.clip-handle-left {
    left: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.3), transparent);
}

.clip-handle-right {
    right: 0;
    background: linear-gradient(-90deg, rgba(0,0,0,0.3), transparent);
}

/* --------------------------------------------------------------------------
   Effect Badges (on clips)
   -------------------------------------------------------------------------- */
.clip-effects {
    position: absolute;
    top: 2px;
    right: 16px;
    display: flex;
    gap: 2px;
    z-index: 5;
}

.effect-badge {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    cursor: help;
}

.transition-badge {
    background: rgba(99, 102, 241, 0.8);
    border: 1px solid var(--color-primary);
}

.filter-badge {
    background: rgba(251, 191, 36, 0.8);
    border: 1px solid var(--color-accent);
}

/* --------------------------------------------------------------------------
   Transition Indicator
   -------------------------------------------------------------------------- */
.transition-indicator {
    position: absolute;
    width: 20px;
    height: 100%;
    background: var(--color-accent);
    opacity: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    cursor: pointer;
    z-index: 2;
    margin: 0 -10px;
}

.transition-indicator:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* --------------------------------------------------------------------------
   Drop Zone
   -------------------------------------------------------------------------- */
.drop-zone {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--color-accent);
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 50;
}

.drop-zone.active {
    opacity: 1;
}

.drop-zone::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--color-accent);
}

/* --------------------------------------------------------------------------
   Ghost Clip (pendant le drag)
   -------------------------------------------------------------------------- */
.ghost-clip {
    position: fixed;
    pointer-events: none;
    opacity: 0.8;
    z-index: 1000;
    transform: translate(-50%, -50%);
}

/* --------------------------------------------------------------------------
   Cut Mode (pour le découpage avec les ciseaux)
   -------------------------------------------------------------------------- */
.cut-mode .timeline-container {
    cursor: crosshair;
}

/* Les clips ont un curseur spécial en mode cut */
.cut-mode .clip {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Ctext y='18' font-size='16'%3E✂️%3C/text%3E%3C/svg%3E") 12 12, crosshair;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.cut-mode .clip:hover {
    transform: scaleY(1.05);
    box-shadow: 0 0 0 3px var(--color-danger), 0 4px 12px rgba(255, 71, 87, 0.3);
}

/* Ligne de coupe verticale qui suit la souris */
.cut-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-danger);
    pointer-events: none;
    z-index: 100;
    display: none;
}

.cut-mode .cut-line {
    display: block;
}

.cut-line::before {
    content: '✂️';
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1rem;
}

/* Animation subtile sur les clips en mode cut */
.cut-mode .clip::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    bottom: 0;
    width: 2px;
    background: transparent;
    pointer-events: none;
    transition: background 0.2s ease;
}

.cut-mode .clip:hover::after {
    background: var(--color-danger);
    box-shadow: 0 0 8px var(--color-danger);
}

/* --------------------------------------------------------------------------
   Selection Box
   -------------------------------------------------------------------------- */
.selection-box {
    position: absolute;
    border: 2px solid var(--color-accent);
    background: rgba(251, 191, 36, 0.1);
    pointer-events: none;
    z-index: 100;
}

/* --------------------------------------------------------------------------
   Timeline Empty State
   -------------------------------------------------------------------------- */
.timeline-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-lg);
}

.timeline-empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.timeline-empty p {
    font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Responsive - Mode Portrait
   -------------------------------------------------------------------------- */
@media (orientation: portrait) {
    .timeline-section {
        min-height: 220px;
    }

    .timeline-tools {
        padding: var(--spacing-xs);
        gap: var(--spacing-xs);
    }

    .btn-tool {
        min-width: 44px;
        min-height: 44px;
    }

    .track {
        min-height: 50px;
    }

    .track-label {
        width: 40px;
        min-width: 40px;
        font-size: 1rem;
    }

    .track-content {
        min-width: 400px;
    }

    .clip {
        height: 40px;
        min-width: 50px;
    }

    .clip-name {
        font-size: 0.625rem;
    }

    .clip-duration {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Responsive - Très petit écran
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
    .track-label {
        width: 32px;
        min-width: 32px;
        font-size: 0.875rem;
    }

    .clip {
        height: 36px;
        padding: 0 var(--spacing-xs);
    }

    .time-ruler {
        height: 24px;
    }

    .time-marker-label {
        font-size: 0.5rem;
    }

    .playhead-handle {
        width: 12px;
        height: 12px;
    }

    .playhead-handle::after {
        border-left-width: 6px;
        border-right-width: 6px;
        border-top-width: 6px;
    }
}

/* --------------------------------------------------------------------------
   Responsive - Grand écran
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
    .track {
        min-height: 70px;
    }

    .track-label {
        width: 80px;
        min-width: 80px;
        font-size: 1.5rem;
    }

    .track-content {
        min-width: 800px;
    }

    .clip {
        height: 56px;
        min-width: 80px;
    }

    .clip-name {
        font-size: 0.875rem;
    }

    .clip-duration {
        font-size: 0.75rem;
    }
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes clipAdded {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.clip.just-added {
    animation: clipAdded 0.3s ease;
}

@keyframes clipRemoved {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.8);
    }
}

.clip.removing {
    animation: clipRemoved 0.2s ease forwards;
}

/* --------------------------------------------------------------------------
   États de drag sur les pistes
   -------------------------------------------------------------------------- */
.track-content.drag-over {
    background: rgba(99, 102, 241, 0.2);
}

.track-video .track-content.drag-over {
    background: rgba(99, 102, 241, 0.3);
}

.track-audio .track-content.drag-over {
    background: rgba(52, 211, 153, 0.3);
}

.track-text .track-content.drag-over {
    background: rgba(244, 114, 182, 0.3);
}

/* --------------------------------------------------------------------------
   Track Video2 (Incrustation / Picture-in-Picture)
   -------------------------------------------------------------------------- */
.track-video2 .track-label {
    background: rgba(251, 146, 60, 0.3);
    flex-direction: column;
    gap: 2px;
}

.track-video2 .clip {
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

.track-video2 .track-content.drag-over {
    background: rgba(251, 146, 60, 0.3);
}

/* Track Label avec nom */
.track-label .track-name {
    font-size: 0.5rem;
    text-transform: uppercase;
    opacity: 0.8;
    letter-spacing: 0.5px;
}

/* --------------------------------------------------------------------------
   Clip Settings Panel (Picture-in-Picture controls)
   -------------------------------------------------------------------------- */
.clip-settings-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.clip-settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}

.clip-settings-title {
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-close-small {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    opacity: 0.7;
    padding: 4px 8px;
}

.btn-close-small:hover {
    opacity: 1;
}

.clip-settings-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.setting-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Toggle Button (Mute) */
.btn-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-toggle:hover {
    background: rgba(0, 0, 0, 0.3);
}

.btn-toggle.muted {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--color-danger);
}

.toggle-icon {
    font-size: 1.2rem;
}

.toggle-text {
    font-size: 0.85rem;
}

/* Position Grid (3x3) */
.position-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    max-width: 180px;
}

.btn-position {
    width: 52px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.btn-position:hover {
    background: rgba(99, 102, 241, 0.3);
    border-color: var(--color-primary);
}

.btn-position.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

/* Mute Badge */
.mute-badge {
    background: rgba(239, 68, 68, 0.8);
    border: 1px solid var(--color-danger);
}

/* PiP Badge */
.pip-badge {
    background: rgba(251, 146, 60, 0.8);
    border: 1px solid #f97316;
}

/* --------------------------------------------------------------------------
   Responsive - Clip Settings
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
    .clip-settings-panel {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 100;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin: 0;
        max-height: 50vh;
        overflow-y: auto;
    }

    .position-grid {
        max-width: 100%;
    }

    .btn-position {
        width: 100%;
        height: 48px;
    }
}

/* --------------------------------------------------------------------------
   Volume Control
   -------------------------------------------------------------------------- */
.volume-control .slider {
    flex: 1;
    max-width: 120px;
}