/* Scene 13 — "Watching the segmentation come into focus."
   Layout:
     hero
     body: prediction snapshot (left) + 3 charts (right)
     timeline slider + play button
     caption + step controls */

.s13-root .s13-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.s13-hero h1 { font-size: 28px; }
.s13-hero .lede em { font-style: italic; color: var(--ink); }

/* ---------------------------------------------------------------------------
   Body: two-column layout
   --------------------------------------------------------------------------- */

.s13-body {
  display: grid;
  grid-template-columns: minmax(280px, auto) minmax(420px, 1fr);
  gap: 22px;
  align-items: start;
}

.s13-left {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}
.s13-right {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.s13-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.s13-panel-label {
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  font-family: "SF Mono", Menlo, monospace;
}
.s13-panel-host {
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--card-bg);
}
.s13-panel-host canvas { display: block; image-rendering: pixelated; }

.s13-refrow {
  display: flex;
  gap: 10px;
}

/* Badges (training step, accuracy, loss) */
.s13-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.s13-badge {
  background: var(--card-bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 4px 10px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 90px;
}
.s13-badge-label {
  font-size: 9.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-secondary);
}
.s13-badge-value {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

/* ---------------------------------------------------------------------------
   Charts
   --------------------------------------------------------------------------- */

.s13-chart {
  background: var(--card-bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 10px 12px 6px;
}
.s13-chart-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}
.s13-chart-title {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  font-family: "SF Mono", Menlo, monospace;
}
.s13-chart-note {
  font-size: 10.5px;
  font-style: italic;
  color: var(--ink-secondary);
}
.s13-chart-svg { display: block; }

/* ---------------------------------------------------------------------------
   Timeline slider + play button
   --------------------------------------------------------------------------- */

.s13-timeline {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--card-bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.s13-timeline-label {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  font-family: "SF Mono", Menlo, monospace;
  flex: 0 0 auto;
}
.s13-slider {
  flex: 1 1 auto;
  accent-color: var(--cnn-pos);
  height: 4px;
}
.s13-slider-out {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  min-width: 90px;
  text-align: right;
}
.s13-play {
  background: var(--cnn-pos);
  color: white;
  border: 1px solid var(--cnn-pos);
  border-radius: 3px;
  padding: 4px 12px;
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}
.s13-play:hover { filter: brightness(1.06); }
.s13-play:disabled { opacity: 0.4; cursor: not-allowed; }
.s13-slider:disabled { opacity: 0.5; cursor: not-allowed; }

.s13-caption {
  margin: 4px 4px 0;
  text-align: center;
  font-size: 14.5px;
}

/* ---------------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------------- */

@media (max-width: 1000px) {
  .s13-body {
    grid-template-columns: 1fr;
  }
  .s13-left { align-items: flex-start; }
}