.analysis-chart {
  position: relative;
  min-width: 0;
  color: var(--ink);
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
}
.chart-title {
  margin: 0;
  color: var(--ink);
  font: 600 18px/1.3 var(--sans);
  letter-spacing: -0.01em;
}
.chart-sub, .chart-caption, .chart-legend {
  margin: 8px 0 16px;
  color: var(--ink-2);
  font: 400 13px/1.55 var(--sans);
}
.chart-caption, .chart-legend { margin: 12px 0 0; }
.chart-canvas { width: 100%; min-width: 0; }
.chart-svg { display: block; max-width: 100%; height: auto; overflow: visible; }
.chart-text, .chart-direct-label, .chart-row-label {
  fill: var(--ink);
  font: 400 12px/1.3 var(--sans);
}
.chart-tick, .chart-column-label {
  fill: var(--muted);
  font: 400 10px/1.3 var(--mono);
}
.chart-column-label {
  fill: var(--ink-2);
  font: 400 11px/1.1 var(--sans);
}
.chart-column-group {
  fill: var(--muted);
  font: 400 10px/1.3 var(--mono);
}
.chart-axis-title, .chart-region-label {
  fill: var(--muted);
  font: 400 11px/1.3 var(--sans);
}
.chart-grid { stroke: var(--grid); stroke-width: 1; }
.chart-axis { stroke: var(--axis); stroke-width: 1; }
.chart-threshold { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 4; }
.chart-frontier { fill: none; stroke-width: 1.5; stroke-linejoin: round; }
.chart-direct-label {
  font-size: 12px;
  paint-order: stroke;
  stroke: var(--page);
  stroke-width: 4px;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}
.chart-label-leader { stroke: var(--axis); stroke-width: 1px; }
.chart-safety-threshold {
  fill: var(--muted);
  font: 400 10px/1.3 var(--mono);
  paint-order: stroke;
  stroke: var(--page);
  stroke-width: 4px;
  stroke-linejoin: round;
  pointer-events: none;
}
.chart-row-label { font-size: 12px; }
.chart-mark { pointer-events: none; }
.chart-hit-area, .chart-heat-cell { cursor: pointer; }
.chart-mark, .chart-heat-cell, .chart-frontier, .chart-direct-label,
.chart-label-leader, .chart-row-label, .chart-model-row rect { transition: opacity 120ms ease; }
.chart-model-row[role="button"] { cursor: pointer; }
.chart-field .chart-caption { color: var(--muted); }
.chart-field-count { fill: var(--muted); font: 400 12px/1.3 var(--sans); }
.chart-outcome-key { display: flex; flex-wrap: wrap; gap: 6px 12px; color: var(--ink-2); font: 400 11px/1.3 var(--sans); }
.chart-outcome-key > span { display: inline-flex; align-items: center; gap: 5px; }
.chart-outcome-key .chart-scale-swatch { display: inline-block; width: 14px; height: 8px; }
.analysis-chart :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.chart-segmented {
  display: inline-flex;
  flex-wrap: wrap;
  border: 1px solid var(--axis);
  border-radius: 2px;
}
.chart-segmented button {
  appearance: none;
  border: 0;
  border-radius: 0;
  padding: 6px 10px;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  font: 400 12px/1.3 var(--sans);
}
.chart-segmented button + button { border-left: 1px solid var(--axis); }
.chart-segmented button[aria-pressed="true"] { background: var(--wash); color: var(--ink); font-weight: 600; }
.chart-tooltip {
  position: absolute;
  z-index: 3;
  box-sizing: border-box;
  width: max-content;
  max-width: min(300px, 100%);
  padding: 10px 12px;
  border: 1px solid var(--axis);
  background: var(--surface);
  color: var(--ink);
  font: 400 12px/1.5 var(--sans);
  pointer-events: none;
  overflow-wrap: anywhere;
}
.chart-tooltip[hidden] { display: none; }
.chart-tooltip strong { display: block; font-weight: 600; }
.chart-tip-vendor { display: block; margin-bottom: 6px; color: var(--muted); }
.chart-tip-hint { display: block; margin-top: 7px; color: var(--muted); font: 400 11px/1.3 var(--sans); }
.chart-tooltip div { display: flex; justify-content: space-between; gap: 16px; }
.chart-tooltip div span { color: var(--ink-2); }
.chart-tooltip b { color: var(--ink); font-weight: 400; text-align: right; font-variant-numeric: tabular-nums; }
.chart-scale-key { display: flex; align-items: center; gap: 2px; color: var(--muted); font: 400 10px/1.3 var(--mono); }
.chart-scale-key > span:first-child { margin-right: 5px; }
.chart-scale-key > span:last-child { margin-left: 5px; }
.chart-scale-swatch { width: 14px; height: 10px; }
@media (max-width: 639px) {
  .chart-header { align-items: flex-start; }
  .chart-title { font-size: 17px; }
  .chart-sub, .chart-caption, .chart-legend { font-size: 12px; }
  .chart-segmented button { padding: 6px 9px; }
}
@media (prefers-reduced-motion: reduce) {
  .analysis-chart *, .analysis-chart *::before, .analysis-chart *::after { transition: none; }
}