.interactive-chart {
  --chart-green: #173c32;
  --chart-green-soft: #5f7e73;
  --chart-gold: #c9a85e;
  --chart-gold-soft: #e4d4ad;
  --chart-muted: #5f6964;
  --chart-line: #d9d1c2;
  position: relative;
  min-width: 0;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  overflow: hidden;
}

.interactive-chart[aria-busy="true"]::after {
  content: "Loading interactive view…";
  position: absolute;
  right: 14px;
  bottom: 10px;
  color: var(--muted);
  font-size: 12px;
}

.chart-fallback img {
  display: block;
  width: 100%;
  height: auto;
}

.chart-controls,
.chart-series-controls,
.chart-range-controls,
.chart-actions,
.chart-detail-heading,
.chart-detail-footer {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.chart-controls {
  justify-content: space-between;
  margin-bottom: 10px;
}

.chart-toggle,
.chart-range {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffdf8;
  color: var(--green);
  font-size: 12px;
  font-weight: 650;
}

.chart-toggle[aria-pressed="false"] {
  color: var(--muted);
  opacity: .7;
}

.chart-toggle:disabled {
  cursor: default;
}

.chart-range[aria-pressed="true"] {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

.chart-swatch {
  width: 16px;
  height: 3px;
  border-radius: 3px;
  background: var(--swatch);
}

.chart-swatch.dashed {
  height: 0;
  border-top: 3px dashed var(--swatch);
  background: transparent;
}

.chart-swatch.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.chart-plot {
  position: relative;
  width: 100%;
}

.chart-plot svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  touch-action: pan-y;
}

.chart-tooltip {
  position: absolute;
  z-index: 5;
  max-width: 240px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffdf8;
  box-shadow: 0 6px 18px #24372d1f;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.4;
  pointer-events: none;
}

.chart-tooltip[hidden] { display: none; }
.chart-tooltip strong { color: var(--green); }

.chart-selected {
  min-height: 24px;
  margin: 8px 2px 0;
  color: var(--green);
  font-size: 13px;
  font-weight: 650;
}

.chart-scrubber-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.chart-scrubber {
  width: 100%;
  accent-color: var(--green);
}

.chart-source {
  margin: 7px 2px 0;
  color: var(--muted);
  font-size: 11px;
}

.chart-error {
  margin: 0;
  padding: 18px;
  color: var(--muted);
}

.chart-actions { justify-content: flex-end; margin-top: 10px; }
.chart-actions .button { font-size: 12px; padding: 7px 10px; }
.chart-detail-heading { justify-content: space-between; align-items: flex-start; }
.chart-detail-heading h1 { margin-top: 8px; }
.chart-detail-footer { justify-content: space-between; margin-top: 22px; }
.chart-detail-card { padding: 28px; }

.twin-controls,
.twin-facts {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.twin-select-label {
  display: grid;
  gap: 6px;
  color: var(--green);
  font-size: 12px;
  font-weight: 650;
}

.twin-select {
  width: min(100%, 520px);
  min-height: 38px;
  padding: 7px 34px 7px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fffdf8;
  color: var(--green);
  font: inherit;
}

.twin-model-note,
.twin-facts {
  color: var(--muted);
  font-size: 12px;
}

.twin-view-controls {
  display: flex;
  gap: 8px;
  margin: 12px 0 4px;
}

.twin-selected { min-height: 38px; }
.twin-facts { justify-content: flex-start; margin: 4px 2px 0; }
.twin-explanation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.twin-explanation-grid h3 {
  margin: 0 0 7px;
  color: var(--green);
  font-size: 14px;
}

.twin-model-mix {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.twin-drivers,
.twin-inputs,
.twin-unknowns {
  margin: 9px 0 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 12px;
}

.twin-drivers li { margin: 4px 0; }
.twin-inputs li,
.twin-unknowns li { margin: 4px 0; }
.twin-comparable-heading { margin-top: 16px; color: var(--green); font-weight: 700; }
.twin-comparables { margin-top: 5px; font-size: 12px; }
.twin-comparables th,
.twin-comparables td { padding: 8px 7px; }
.twin-map { min-height: 390px; }
.twin-map[hidden] { display: none; }
.twin-map-tooltip { max-width: 210px; }
.twin-map-legend {
  display: flex;
  justify-content: center;
  gap: 8px 18px;
  flex-wrap: wrap;
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
}

.twin-map-missing {
  flex-basis: 100%;
  color: var(--muted);
}

.twin-map-legend span { display: inline-flex; gap: 6px; align-items: center; }
.twin-map-legend i {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
}

.twin-map-legend i.target {
  border-radius: 1px;
  background: var(--gold);
  transform: rotate(45deg);
}

.twin-map-legend i.twin { background: var(--green); }
.twin-map-legend i.above { background: var(--chart-green-soft); }
.twin-map-legend i.neutral { background: var(--muted); }
.twin-map-legend i.below { background: var(--gold); }

/* Keep every two-column gallery row on the same visual baseline. */
@media (min-width: 801px) {
  .chart-gallery > div {
    display: grid;
    grid-row: span 3;
    grid-template-rows: subgrid;
    min-width: 0;
    row-gap: 0;
  }

  .chart-gallery .chart-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
  }

  .chart-gallery .chart-series-controls {
    min-height: 112px;
    align-content: flex-start;
  }

  .chart-gallery .chart-range-controls {
    justify-self: start;
  }

  .chart-gallery .chart-selected { min-height: 38px; }
  .chart-gallery .chart-source { min-height: 32px; }
}

@media (max-width: 800px) {
  .interactive-chart { padding: 12px; }
  .chart-controls { align-items: flex-start; }
  .chart-series-controls { width: 100%; }
  .chart-toggle { flex: 1 1 180px; justify-content: flex-start; }
  .chart-range-controls { width: 100%; }
  .chart-range { flex: 1; justify-content: center; }
  .twin-controls { align-items: flex-start; flex-direction: column; }
  .twin-select-label,
  .twin-select { width: 100%; }
  .twin-explanation-grid { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 520px) {
  .interactive-chart { margin-left: -10px; margin-right: -10px; padding: 10px; }
  .chart-toggle { flex-basis: 100%; }
  .chart-detail-card { padding: 20px; }
  .chart-detail-footer { align-items: flex-start; flex-direction: column; }
}