/* Comparison View */
.comparison-view {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #000;
}

.comparison-videos {
  flex: 1;
  display: grid;
  gap: 2px;
  background: var(--border-color);
  min-height: 0;
}

/* Grid layout classes */
.comparison-videos.grid-2 {
  grid-template-columns: 1fr 1fr;
}

.comparison-videos.grid-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.comparison-videos.grid-4 {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.comparison-videos.grid-5 {
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: 1fr 1fr;
}

.comparison-videos.grid-5 > .comparison-panel:nth-child(1) {
  grid-column: 1 / 3;
}
.comparison-videos.grid-5 > .comparison-panel:nth-child(2) {
  grid-column: 3 / 5;
}
.comparison-videos.grid-5 > .comparison-panel:nth-child(3) {
  grid-column: 5 / 7;
}
.comparison-videos.grid-5 > .comparison-panel:nth-child(4) {
  grid-column: 2 / 4;
}
.comparison-videos.grid-5 > .comparison-panel:nth-child(5) {
  grid-column: 4 / 6;
}

.comparison-videos.grid-6 {
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.comparison-panel {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  min-height: 0;
}

.comparison-panel video {
  max-width: 100%;
  max-height: 100%;
  transform-origin: center center;
}

.comparison-panel .nn-canvas {
  max-width: 100%;
  max-height: 100%;
  transform-origin: center center;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.comparison-videos.split-mode .comparison-panel .nn-canvas {
  width: 100%;
  height: 100%;
}


.comparison-panel .panel-label {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  z-index: 10;
}

.comparison-panel .load-video-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.comparison-panel .load-video-btn svg {
  width: 40px;
  height: 40px;
}

.comparison-panel.zoomed {
  cursor: grab;
}

.comparison-panel.panning {
  cursor: grabbing;
}

/* Panel close button (removes panel) */
.panel-close-btn {
  position: absolute;
  top: 8px;
  right: 44px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 11;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast);
  font-size: 14px;
  line-height: 1;
  padding: 0;
}

.comparison-panel:hover .panel-close-btn {
  opacity: 1;
}

.panel-close-btn:hover {
  background: rgba(220, 50, 50, 0.9);
}

/* Clear video button (unload video from panel) */
.panel-clear-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 11;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast);
  padding: 0;
}

.comparison-panel:hover .panel-clear-btn {
  display: flex;
  opacity: 1;
}

.panel-clear-btn:hover {
  background: rgba(220, 50, 50, 0.9);
}

/* Shared comparison controls */
.comparison-controls {
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.95));
  padding: 12px 16px;
}

.comparison-controls .seek-bar-container {
  margin-bottom: 8px;
}

.comparison-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.comparison-toolbar .link-zoom-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.comparison-toolbar .link-zoom-toggle.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Mode toggle */
.compare-mode-toggle {
  display: flex;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.compare-mode-toggle .mode-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 28px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.compare-mode-toggle .mode-btn:hover:not(.disabled) {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.compare-mode-toggle .mode-btn.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.compare-mode-toggle .mode-btn.disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* ===================== */
/* Split mode            */
/* ===================== */

.comparison-videos.split-mode {
  position: relative;
  gap: 0;
  background: #000;
}

/* In split mode both panels stack on top of each other */
.comparison-videos.split-mode .comparison-panel {
  position: absolute;
  inset: 0;
}

/* Left panel: clip to left portion */
.comparison-videos.split-mode.grid-2 .comparison-panel:nth-child(1) {
  clip-path: inset(0 var(--split-right, 50%) 0 0);
  z-index: 2;
}

/* Right panel: clip to right portion */
.comparison-videos.split-mode.grid-2 .comparison-panel:nth-child(2) {
  clip-path: inset(0 0 0 var(--split-left, 50%));
  z-index: 1;
}

/* In split mode, videos should fill the full container */
.comparison-videos.split-mode .comparison-panel video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Panel labels reposition in split mode */
.comparison-videos.split-mode.grid-2 .comparison-panel:nth-child(1) .panel-label {
  left: 12px;
}

.comparison-videos.split-mode.grid-2 .comparison-panel:nth-child(2) .panel-label {
  left: auto;
  right: 12px;
}

/* Hide placeholders in split mode (use toolbar buttons instead) */
.comparison-videos.split-mode .load-video-btn {
  display: none;
}

/* Hide close/clear buttons in split mode */
.comparison-videos.split-mode .panel-close-btn,
.comparison-videos.split-mode .panel-clear-btn {
  display: none !important;
}

/* Split divider */
.split-divider {
  display: none;
}

.comparison-videos.split-mode .split-divider {
  display: flex;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  width: 24px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: col-resize;
  user-select: none;
  -webkit-user-select: none;
}

.split-divider-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.6);
  pointer-events: none;
}

.split-divider-handle {
  width: 20px;
  height: 40px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  z-index: 1;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.split-divider:hover .split-divider-handle,
.split-divider.dragging .split-divider-handle {
  background: rgba(0, 0, 0, 0.9);
  border-color: var(--accent);
  color: #fff;
}

.split-divider.dragging .split-divider-line {
  background: var(--accent);
}

/* ===================== */
/* Full view mode        */
/* ===================== */

.comparison-videos.full-mode {
  position: relative;
}

.comparison-videos.full-mode .comparison-panel {
  display: none;
}

.comparison-videos.full-mode .comparison-panel.full-active {
  display: flex;
  grid-column: 1 / -1;
  grid-row: 1 / -1;
}

.comparison-videos.full-mode .split-divider {
  display: none;
}

/* Number badge overlay on panels */
.panel-number-badge {
  position: absolute;
  top: 12px;
  right: 76px;
  background: rgba(0, 0, 0, 0.7);
  color: var(--text-muted);
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  z-index: 10;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

/* Show number badges only in full mode */
.comparison-videos.full-mode .panel-number-badge {
  opacity: 1;
}

/* ===================== */
/* Panel metadata overlay */
/* ===================== */

.panel-metadata {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.75);
  color: #ccc;
  font-size: 0.85rem;
  font-family: monospace;
  line-height: 1.6;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  z-index: 10;
  pointer-events: none;
  display: none;
  white-space: pre;
}

.panel-metadata.visible {
  display: block;
}

/* Add Video button disabled state */
.comparison-toolbar .btn.disabled {
  opacity: 0.3;
  pointer-events: none;
}