/*
 * Compare section (Monte Carlo strips) and explainer collapse.
 */

.compare {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius-l);
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.compare .header {
  display: flex;
  gap: 12px 18px;
  align-items: center;
  flex-wrap: wrap;
}
.compare .header .title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}
.compare .header .subtitle {
  font-size: 12px;
  color: var(--ink-muted);
  margin: 0;
}

.compare .controls-row {
  display: flex;
  align-items: center;
  gap: 10px 14px;
  flex-wrap: wrap;
}
.compare .controls-row label { font-size: 12px; }

.compare .progress {
  height: 4px;
  width: 100%;
  background: var(--paper-2);
  border-radius: 999px;
  overflow: hidden;
  display: none;
}
.compare .progress.on { display: block; }
.compare .progress .bar {
  height: 100%;
  background: var(--moving);
  width: 0%;
  transition: width 0.15s linear;
}

.compare .strips-wrap {
  min-height: 60px;
  width: 100%;
  overflow-x: auto;
}
.compare .strips-wrap svg { display: block; width: 100%; height: auto; }
.compare .empty {
  color: var(--ink-muted);
  font-size: 13px;
  padding: 22px 0;
  text-align: center;
}

.deplane-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 13px;
  min-height: 40px;
}

.explainer {
  margin-top: var(--gap-l);
}
.explainer summary {
  cursor: pointer;
  padding: 12px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-m);
  background: var(--paper);
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.explainer summary::-webkit-details-marker { display: none; }
.explainer summary::before {
  content: "+";
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-soft);
  font-weight: 400;
}
.explainer[open] summary::before { content: "\2013"; }
.explainer .body {
  padding: 14px 4px 4px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}
.explainer .body ul {
  padding-left: 20px;
  margin: 0 0 12px;
}
.explainer .body li { margin: 4px 0; }
.explainer .body a { color: var(--ink); }

.compare-timing {
  margin: 8px 0 0;
  font-size: 11px;
  color: var(--ink-muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Round-08 N8-m2: axis chrome, not payload. Small, soft, italic, centred so the eye reads
 * "same scale" as caption text without competing with the panel titles or the row labels
 * eight pixels below. Sits BETWEEN the two panels, matching what the compare code says
 * out loud. */
.compare-shared-scale {
  margin: 6px 0;
  font-size: 11px;
  color: var(--ink-muted);
  text-align: center;
  font-style: italic;
}

/* Round-14 N10-M2: at phone widths (<520 px) the two axis notes cannot both fit on the
 * strip axis without overprinting. We route them here, one line under each panel, printed
 * with a middle-dot separator when both parts apply. Small, italic, muted so the caption
 * reads as chart chrome, not as data. */
.compare-axis-notes {
  margin: 4px 0 0;
  font-size: 11px;
  color: var(--ink-muted);
  text-align: left;
  font-style: italic;
}

/* Light rule between the textbook and airline groups of strips in board mode. Same paper +
 * rule tokens as the rest of the chart chrome so the split reads as a soft group divider,
 * not a heavy section break. */
.compare-group-rule {
  height: 1px;
  background: var(--rule);
  margin: 10px 0 8px;
  opacity: 0.7;
}

/* When the time-split renders a below-segment label because a segment was too narrow to fit
   inline, we put those "hint" lines under the bar so the value never disappears silently. */
.time-split .below-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 4px;
}
.time-split .below-labels .swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  vertical-align: middle;
  margin-right: 4px;
}