/* ── Merged-video styles (atlas_compare.js) ──────────────────────────────── */

/* 3-up triplet: single hidden video + canvas (see one_video_triplet_canvas.js) */
.merged-triplet-canvas-wrap {
  position: relative;
  overflow: hidden;
}

.merged-triplet-source {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
  clip: rect(0, 0, 0, 0);
}

/* qualitative-video-comparison.css sets `video { inset:0; width:100% }` — override for hidden source */
.qualitative-video-comparison-block .qualitative-video-compare.merged-triplet-canvas-wrap .merged-triplet-source {
  inset: auto !important;
  top: 0 !important;
  left: 0 !important;
  width: 1px !important;
  height: 1px !important;
  max-width: 1px !important;
  max-height: 1px !important;
  object-fit: none !important;
  background: transparent !important;
  will-change: auto !important;
}

.merged-triplet-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
  pointer-events: none;
}

.merged-triplet-canvas-wrap .twentytwenty-overlay {
  z-index: 2;
}

/* Merged duo (2× width): two stacked videos inside .sync-role */
.sync-role {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  overflow: hidden !important;
  box-sizing: border-box !important;
}

.sync-role video {
  position: absolute !important;
  top: 0 !important;
  right: auto !important;
  bottom: 0 !important;
  width: 200% !important;
  height: 100% !important;
  object-fit: fill !important;
  pointer-events: none !important;
  box-sizing: border-box !important;
}

[data-merged-duo] .sync-role--ours video {
  left: 0 !important;
}

[data-merged-duo] .sync-role--baseline video {
  left: -100% !important;
}

#geometry .qualitative-video-compare[data-merged-duo] {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 0;
  container-type: inline-size;
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
  border-radius: 10px;
  aspect-ratio: 1 / 1;
  overflow: visible;
}

/* Fills the aspect-ratio box; parent .comparison-slider aspect 16/9 is overridden in comparison.css */
#geometry .comparison-slider--merged-duo {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  position: relative;
  z-index: 41;
  overflow: hidden;
  border-radius: 9px;
  --split: 50%;
  background: var(--bg-v1);
  container-type: inline-size;
}

/* Top layer: left column of merged file (dot overlay); clipped by vertical split bar */
#geometry .comparison-slider--merged-duo .sync-role--ours {
  clip-path: polygon(0 0, var(--split) 0, var(--split) 100%, 0 100%);
  pointer-events: none;
}

#geometry .comparison-slider--merged-duo .sync-role--baseline {
  pointer-events: none;
}