:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #0a0f1a;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-dim: #1d4ed8;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --ctrl-color: #22c55e;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.header {
    background: var(--bg-secondary);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo svg {
    width: 32px;
    height: 32px;
    fill: var(--accent);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.view-toggle {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 4px;
}

.view-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    font-size: 0.75rem;
    transition: all 0.2s;
}

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

.view-btn:hover:not(.active) {
    color: var(--text-primary);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent);
}

.btn-success {
    background: var(--success);
    color: var(--bg-primary);
}

.btn-success:hover {
    filter: brightness(1.1);
}

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

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

.btn-add-video {
    padding: 10px 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}

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

.main-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 65px);
}

.video-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

/* Focus mode tabs */
.focus-tabs {
    display: none;
    background: var(--bg-secondary);
    padding: 8px 16px;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.video-grid.view-focus .focus-tabs {
    display: flex;
}

.focus-tab {
    padding: 6px 12px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    font-size: 0.75rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.focus-tab:hover {
    color: var(--text-primary);
}

.focus-tab.active {
    background: var(--accent);
    color: white;
}

.focus-tab-badge {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-grid {
    flex: 1;
    display: grid;
    gap: 8px;
    padding: 16px;
    min-height: 0;
}

.video-grid.view-grid {
    overflow: hidden;
}

.video-grid.view-grid.cols-1 { grid-template-columns: 1fr; }
.video-grid.view-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.video-grid.view-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.video-grid.view-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.video-grid.view-scroll {
    overflow-y: auto;
    overflow-x: hidden;
    align-content: start;
    grid-template-columns: 1fr;
    grid-auto-rows: minmax(350px, 60vh);
}

.video-grid.view-focus {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    overflow: hidden;
    padding-top: 0;
}

.video-grid.view-focus .video-container { display: none; }
.video-grid.view-focus .video-container.focused { display: flex; }

.video-container {
    background: var(--bg-tertiary);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 2px solid var(--border-color);
    position: relative;
    min-height: 0;
    min-width: 0;
    cursor: pointer;
}

.video-container.selected {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

.video-grid.single-video .video-container {
    border-color: transparent;
    border-radius: 0;
}

.video-grid.single-video .video-container.selected {
    border-color: transparent;
    box-shadow: none;
}

.video-grid.view-focus .video-container {
    border-color: transparent;
    border-radius: 0;
}

.video-grid.view-focus .video-container.selected {
    border-color: transparent;
    box-shadow: none;
}

.video-container.minimized {
    flex: none !important;
    height: 48px !important;
    min-height: 48px !important;
    max-height: 48px !important;
}

.video-container.minimized .video-wrapper,
.video-container.minimized .video-timeline-overlay {
    display: none !important;
}

.video-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.video-title {
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.video-title input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.875rem;
    width: 150px;
}

.video-title input:focus {
    outline: none;
    border-bottom: 1px solid var(--accent);
}

.video-index-badge {
    color: white;
    font-size: 0.7rem;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 4px;
    min-width: 20px;
    text-align: center;
}

.video-header-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.video-info {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    gap: 8px;
    margin-right: 8px;
}

.header-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

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

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

.header-btn.muted {
    color: var(--warning);
}

.header-btn svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.video-wrapper {
    flex: 1;
    position: relative;
    overflow: hidden;
    cursor: grab;
    min-height: 0;
}

.video-wrapper:active {
    cursor: grabbing;
}

.video-background-grid {
    position: absolute;
    inset: -200% -200%;
    width: 500%;
    height: 500%;
    background: 
        linear-gradient(rgba(30, 41, 59, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 41, 59, 0.5) 1px, transparent 1px),
        linear-gradient(rgba(30, 41, 59, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 41, 59, 0.3) 1px, transparent 1px),
        #0a0a0f;
    background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
    pointer-events: none;
}

.video-wrapper video {
    position: absolute;
    pointer-events: none;
}

.focal-point-marker {
    position: absolute;
    width: 30px;
    height: 30px;
    pointer-events: none;
    z-index: 100;
    display: none;
}

.video-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-secondary);
    padding: 40px;
    text-align: center;
    z-index: 1;
    position: absolute;
    inset: 0;
}

.video-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.5;
}

.video-placeholder p {
    font-size: 0.875rem;
}

.zoom-indicator {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0,0,0,0.7);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
}

.video-container:hover .zoom-indicator,
.video-container.selected .zoom-indicator {
    opacity: 1;
}

/* Comments layer */
.comments-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 50;
}

.comments-layer > * {
    pointer-events: auto;
}

/* Inline Timeline Overlay */
.video-timeline-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 40px 12px 12px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 5;
}

.video-container:hover .video-timeline-overlay,
.video-container.selected .video-timeline-overlay {
    opacity: 1;
}

.video-skip-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: rgba(255,255,255,0.1);
    color: white;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
}

.video-skip-btn:hover {
    background: rgba(255,255,255,0.2);
}

.video-skip-btn.overlay-play-btn {
    background: rgba(59, 130, 246, 0.3);
    border: 1px solid rgba(59, 130, 246, 0.5);
}

.video-skip-btn.overlay-play-btn:hover {
    background: rgba(59, 130, 246, 0.5);
}

.video-skip-btn svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.video-timeline-track {
    flex: 1;
    height: 32px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    position: relative;
    cursor: pointer;
    min-width: 0;
}

.video-timeline-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(59, 130, 246, 0.4);
    border-radius: 4px;
    pointer-events: none;
}

.video-timeline-playhead {
    position: absolute;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    pointer-events: none;
}

.video-timeline-hover {
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    background: rgba(255,255,255,0.5);
    pointer-events: none;
    display: none;
}

.video-timeline-track:hover .video-timeline-hover {
    display: block;
}

.video-timeline-tooltip {
    position: absolute;
    bottom: 100%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.9);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-family: 'Consolas', monospace;
    white-space: nowrap;
    pointer-events: none;
    display: none;
    margin-bottom: 4px;
}

.video-timeline-track:hover .video-timeline-tooltip {
    display: block;
}

.video-timeline-sync {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    background: var(--warning);
    border-radius: 50%;
    border: 2px solid rgba(0,0,0,0.5);
    cursor: pointer;
    z-index: 2;
}

/* Comment markers on timeline */
.comment-markers {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.video-timeline-comment-marker {
    position: absolute;
    top: 2px;
    bottom: 2px;
    width: 4px;
    background: var(--accent);
    border-radius: 2px;
    cursor: pointer;
    z-index: 3;
    opacity: 0.8;
    transition: all 0.2s;
    pointer-events: auto;
}

.video-timeline-comment-marker:hover {
    opacity: 1;
    transform: scaleY(1.2);
}

/* Loop markers */
.loop-marker {
    position: absolute;
    top: 0;
    width: 4px;
    height: 100%;
    cursor: ew-resize;
    z-index: 3;
}

.loop-marker.loop-a {
    background: var(--success);
    border-radius: 2px 0 0 2px;
}

.loop-marker.loop-b {
    background: var(--danger);
    border-radius: 0 2px 2px 0;
}

.loop-region {
    position: absolute;
    top: 0;
    height: 100%;
    background: rgba(34, 197, 94, 0.2);
    pointer-events: none;
    z-index: 1;
}

.video-time-display {
    font-family: 'Consolas', monospace;
    font-size: 0.7rem;
    color: white;
    min-width: 85px;
    text-align: right;
    flex-shrink: 0;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    border: 1px solid transparent;
}

.video-time-display:hover {
    background: rgba(255,255,255,0.1);
}

.video-time-input {
    font-family: 'Consolas', monospace;
    font-size: 0.7rem;
    color: white;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--accent);
    border-radius: 4px;
    padding: 2px 4px;
    width: 85px;
    text-align: right;
}

.video-time-input:focus {
    outline: none;
}

.video-frame-display {
    font-family: 'Consolas', monospace;
    font-size: 0.7rem;
    color: var(--text-secondary);
    min-width: 70px;
    text-align: right;
    flex-shrink: 0;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    border: 1px solid transparent;
    background: rgba(0,0,0,0.3);
}

.video-frame-display:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.video-frame-input {
    font-family: 'Consolas', monospace;
    font-size: 0.7rem;
    color: white;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--accent);
    border-radius: 4px;
    padding: 2px 4px;
    width: 70px;
    text-align: right;
}

.video-frame-input:focus {
    outline: none;
}

.video-overlay-btn {
    width: 28px;
    height: 28px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-overlay-btn:hover {
    background: rgba(255,255,255,0.2);
}

.video-overlay-btn.active {
    background: var(--accent);
    border-color: var(--accent);
}

.video-overlay-btn.has-sync {
    background: var(--warning);
    color: black;
    border-color: var(--warning);
}

.video-overlay-btn.has-comments {
    background: var(--accent);
    border-color: var(--accent);
}

.video-overlay-btn.comments-hidden {
    background: var(--danger);
    border-color: var(--danger);
}

/* Comments toggle button styles */
.header-btn.comments-toggle-btn {
    transition: all 0.2s;
}

.header-btn.comments-toggle-btn.comments-hidden {
    background: var(--danger);
    color: white;
}

.header-btn.comments-toggle-btn.comments-hidden:hover {
    background: #dc2626;
}

/* Overlay mute button muted state */
.video-overlay-btn.muted {
    color: var(--warning);
}

.video-overlay-btn svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

/* Loop mode buttons */
.loop-controls {
    display: flex;
    gap: 4px;
}

.loop-btn {
    padding: 4px 6px;
    font-size: 0.6rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

.loop-btn:hover {
    background: rgba(255,255,255,0.2);
}

.loop-btn.active {
    background: var(--success);
    color: black;
    border-color: var(--success);
}

/* Fullscreen mode */
.video-container.fullscreen {
    position: fixed !important;
    inset: 0 !important;
    z-index: 10000 !important;
    border-radius: 0 !important;
    border: none !important;
    width: 100vw !important;
    height: 100vh !important;
}

.video-container.fullscreen .video-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-container.fullscreen .video-timeline-overlay {
    opacity: 0;
    transition: opacity 0.3s;
}

.video-container.fullscreen.controls-visible .video-header,
.video-container.fullscreen.controls-visible .video-timeline-overlay {
    opacity: 1;
}

.video-container.fullscreen .video-wrapper {
    position: absolute;
    inset: 0;
}

/* Controls Panel */
.controls-panel {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 12px 24px;
    flex-shrink: 0;
}

.controls-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.controls-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 140px;
}

.controls-center {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.controls-right {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 120px;
    justify-content: flex-end;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.playback-controls {
    display: flex;
    gap: 6px;
}

.playback-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.playback-btn:hover:not(:disabled) {
    background: var(--accent);
}

.playback-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.playback-btn.play-pause {
    width: 44px;
    height: 44px;
    background: var(--accent);
}

.playback-btn.play-pause:hover:not(:disabled) {
    background: var(--accent-hover);
}

.playback-btn.active {
    background: var(--warning);
    color: var(--bg-primary);
}

.playback-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Ctrl mode styling */
.controls-panel.ctrl-mode .target-label {
    background: var(--ctrl-color);
    color: var(--bg-primary);
}

.controls-panel.ctrl-mode .playback-btn:not(:disabled) {
    border: 2px solid var(--ctrl-color);
}

.controls-panel.ctrl-mode .playback-btn.play-pause:not(:disabled) {
    background: var(--ctrl-color);
}

.controls-panel.ctrl-mode.ctrl-disabled .target-label {
    background: var(--danger);
    color: white;
}

.controls-panel.ctrl-mode.ctrl-disabled .playback-btn {
    border-color: var(--danger);
    opacity: 0.4;
    cursor: not-allowed;
}

.target-label {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: all 0.2s;
    white-space: nowrap;
}

.frame-skip-control {
    display: flex;
    align-items: center;
    gap: 6px;
}

.frame-skip-control input[type="range"] {
    width: 80px;
}

.frame-skip-value {
    min-width: 45px;
    text-align: center;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--accent);
}

.time-display {
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: 6px;
    display: flex;
    gap: 6px;
    align-items: center;
}

.time-display .current {
    color: var(--accent);
    background: transparent;
    border: 1px solid transparent;
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    width: 95px;
    padding: 2px 4px;
    border-radius: 4px;
}

.time-display .current:hover {
    border-color: var(--border-color);
}

.time-display .current:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-secondary);
}

.time-display .separator {
    color: var(--text-secondary);
}

.time-display .total {
    color: var(--text-secondary);
}

.frame-display {
    font-family: 'Consolas', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.frame-display-global {
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: 6px;
    display: flex;
    gap: 6px;
    align-items: center;
}

.frame-display-global .frame-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.frame-display-global .frame-current {
    color: var(--warning);
    background: transparent;
    border: 1px solid transparent;
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    width: 60px;
    padding: 2px 4px;
    border-radius: 4px;
    text-align: right;
}

.frame-display-global .frame-current:hover {
    border-color: var(--border-color);
}

.frame-display-global .frame-current:focus {
    outline: none;
    border-color: var(--warning);
    background: var(--bg-secondary);
}

.frame-display-global .separator {
    color: var(--text-secondary);
}

.frame-display-global .frame-total {
    color: var(--text-secondary);
    min-width: 50px;
}

/* Global Track View */
.global-track-container {
    flex: 1;
    max-width: 400px;
    min-width: 150px;
    position: relative;
}

.global-track {
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    position: relative;
    cursor: pointer;
    overflow: visible;
}

.global-track-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(59, 130, 246, 0.3);
    pointer-events: none;
    border-radius: 4px 0 0 4px;
}

.global-track-playhead {
    position: absolute;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--accent);
    pointer-events: none;
}

.global-track-hover {
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    background: rgba(255,255,255,0.4);
    pointer-events: none;
    display: none;
}

.global-track:hover .global-track-hover {
    display: block;
}

.global-track-tooltip {
    position: absolute;
    bottom: 100%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.9);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-family: 'Consolas', monospace;
    white-space: nowrap;
    pointer-events: none;
    display: none;
    margin-bottom: 4px;
    z-index: 10;
}

.global-track:hover .global-track-tooltip,
.global-track.dragging .global-track-tooltip {
    display: block;
}

input[type="range"] {
    -webkit-appearance: none;
    background: var(--bg-tertiary);
    height: 6px;
    border-radius: 3px;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

/* Shortcuts button */
.shortcuts-btn {
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s;
    position: relative;
}

.shortcuts-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}

.shortcuts-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.shortcuts-popup {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    font-size: 0.75rem;
    display: none;
    z-index: 100;
    min-width: 200px;
}

.shortcuts-btn:hover .shortcuts-popup {
    display: block;
}

.shortcut {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 4px;
}

.shortcut:last-child {
    margin-bottom: 0;
}

.shortcut kbd {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', monospace;
}

.file-input {
    display: none;
}

.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 8px;
    display: none;
    z-index: 1000;
}

.toast.visible {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Comment System Styles */
.comment-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    z-index: 50;
    cursor: pointer;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.comment-dot:hover {
    transform: translate(-50%, -50%) scale(1.3);
}

.comment-dot.hidden {
    opacity: 0;
    pointer-events: none;
}

.comment-line {
    position: absolute;
    height: 2px;
    transform-origin: left center;
    z-index: 49;
    pointer-events: none;
    transition: opacity 0.3s;
}

.comment-line.hidden {
    opacity: 0;
}

.comment-callout {
    position: absolute;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    min-width: 200px;
    max-width: 350px;
    z-index: 51;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    transition: opacity 0.3s, transform 0.3s;
    cursor: default;
}

.comment-callout-header {
    cursor: move;
}

.comment-callout.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
}

.comment-callout-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    cursor: move;
    user-select: none;
}

.comment-callout-time {
    font-family: 'Consolas', monospace;
    font-size: 0.75rem;
    color: var(--accent);
    cursor: pointer;
}

.comment-callout-time:hover {
    text-decoration: underline;
}

.comment-callout-close {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.comment-callout-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.comment-callout-content {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-primary);
    word-wrap: break-word;
}

.comment-callout-content p {
    margin-bottom: 0.5em;
}

.comment-callout-content p:last-child {
    margin-bottom: 0;
}

.comment-callout-content code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', monospace;
    font-size: 0.8em;
}

.comment-callout-content pre {
    background: var(--bg-tertiary);
    padding: 8px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 0.5em 0;
}

.comment-callout-content strong {
    font-weight: 600;
}

.comment-callout-content em {
    font-style: italic;
}

.comment-callout-footer {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.comment-reply-btn {
    padding: 4px 8px;
    font-size: 0.7rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    cursor: pointer;
}

.comment-reply-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}

.comment-replies {
    margin-top: 8px;
    padding-left: 12px;
    border-left: 2px solid var(--border-color);
}

.comment-reply {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    padding: 4px 0;
}

.comment-reply:last-child {
    margin-bottom: 0;
}

/* Comment Entry Modal */
.comment-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
}

.comment-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    width: 400px;
    max-width: 90vw;
}

.comment-modal h3 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.comment-modal textarea {
    width: 100%;
    height: 120px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    resize: vertical;
    margin-bottom: 12px;
}

.comment-modal textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.comment-modal-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.comment-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Import Modal Styles */
.import-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
}

.import-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    width: 550px;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.import-modal h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.import-modal-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.import-modal-list {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.import-video-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.import-video-item:last-child {
    border-bottom: none;
}

.import-video-index {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
    color: white;
    flex-shrink: 0;
}

.import-video-info {
    flex: 1;
    min-width: 0;
}

.import-video-name {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.import-video-file {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.import-video-file.missing {
    color: var(--danger);
}

.import-video-file.selected {
    color: var(--success);
}

.import-video-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
}

.import-video-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.import-video-btn.has-file {
    border-color: var(--success);
    color: var(--success);
}

.import-video-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.import-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.import-modal-status {
    flex: 1;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Comments List Panel */
.comments-panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
}

.comments-panel {
    position: fixed;
    right: 0;
    top: 0;
    bottom: 0;
    width: 400px;
    max-width: 90vw;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.comments-panel.open {
    transform: translateX(0);
}

.comments-panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.comments-panel-header h3 {
    font-size: 1rem;
}

.comments-panel-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.comments-panel-close:hover {
    color: var(--text-primary);
}

.comments-panel-list {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.comments-list-empty {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
}

.comments-list-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.comments-list-item:hover {
    border-color: var(--accent);
}

.comments-list-item:last-child {
    margin-bottom: 0;
}

.comments-list-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.comments-list-item-time {
    font-family: 'Consolas', monospace;
    font-size: 0.75rem;
    color: var(--accent);
}

.comments-list-item-goto {
    padding: 4px 8px;
    font-size: 0.7rem;
    background: var(--accent);
    border: none;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

.comments-list-item-goto:hover {
    background: var(--accent-hover);
}

.comments-list-item-content {
    font-size: 0.875rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.comments-list-item-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.comments-list-item-delete {
    padding: 4px 8px;
    font-size: 0.7rem;
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
    border-radius: 4px;
    cursor: pointer;
}

.comments-list-item-delete:hover {
    background: var(--danger);
    color: white;
}

/* Reply input */
.reply-input-container {
    margin-top: 8px;
}

.reply-input-container textarea {
    width: 100%;
    height: 60px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.8rem;
    resize: none;
    margin-bottom: 6px;
}

.reply-input-container textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.reply-input-actions {
    display: flex;
    gap: 6px;
}

.reply-input-actions button {
    padding: 4px 10px;
    font-size: 0.7rem;
    border-radius: 4px;
    cursor: pointer;
}

.reply-submit-btn {
    background: var(--accent);
    border: none;
    color: white;
}

.reply-cancel-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Compact controls for smaller screens */
@media (max-width: 1200px) {
    .controls-center {
        flex-wrap: wrap;
    }
    .global-track-container {
        order: 10;
        width: 100%;
        max-width: none;
    }
}

@media (max-width: 768px) {
    .controls-row {
        flex-direction: column;
        align-items: stretch;
    }

    .controls-left, .controls-right {
        justify-content: center;
    }

    .controls-center {
        flex-wrap: wrap;
        justify-content: center;
    }

    .header {
        flex-direction: column;
        gap: 12px;
    }
}