/**
 * A6.7–A6.9 — Accessible SVG charts (plain CSS, --canvas-* tokens).
 */

.canvas-chart {
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-s);
  color: var(--canvas-text-primary);
  background: var(--canvas-surface-foreground);
  border: 1px solid var(--canvas-border-default);
  border-radius: var(--canvas-radius-xl);
  padding: var(--canvas-space-m);
  min-width: 0;
}

.canvas-chart__body {
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-s);
  min-width: 0;
}

.canvas-chart__plot {
  position: relative;
  width: 100%;
  min-height: 160px;
  min-width: 0;
}

.canvas-chart__svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  overflow: visible;
}

.canvas-chart__axis-line {
  stroke: var(--canvas-border-interactive);
  stroke-width: 1;
}

.canvas-chart__grid-line {
  stroke: var(--canvas-border-default);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.canvas-chart__tick-label,
.canvas-chart__axis-title {
  fill: var(--canvas-text-secondary);
  font-size: var(--canvas-font-size-2xs);
  font-family: var(--canvas-font-label);
}

.canvas-chart__axis-title {
  font-weight: var(--canvas-font-weight-medium);
}

.canvas-chart__bar,
.canvas-chart__slice,
.canvas-chart__stack-seg,
.canvas-chart__radial-bar,
.canvas-chart__point {
  outline: none;
}

.canvas-chart__bar:focus,
.canvas-chart__slice:focus,
.canvas-chart__stack-seg:focus,
.canvas-chart__radial-bar:focus,
.canvas-chart__point:focus {
  outline: var(--canvas-focus-ring-width) solid var(--canvas-focus-ring);
  outline-offset: var(--canvas-focus-ring-offset);
}

.canvas-chart__line {
  fill: none;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.canvas-chart__radar-ring,
.canvas-chart__radar-axis {
  stroke: var(--canvas-border-default);
  stroke-width: 1;
}

.canvas-chart__stack-track {
  fill: var(--canvas-surface-sunk);
}

.canvas-chart__radial-track {
  opacity: 0.5;
}

.canvas-chart__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--canvas-space-s) var(--canvas-space-m);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--canvas-font-size-xs);
  color: var(--canvas-text-secondary);
}

.canvas-chart__legend-item {
  display: inline-flex;
  align-items: center;
  gap: var(--canvas-space-2xs);
}

.canvas-chart__legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: var(--canvas-radius-2xs);
  border: 1px solid var(--canvas-border-interactive);
  flex-shrink: 0;
}

.canvas-chart__legend-swatch[data-mark="dashed"] {
  background-image: repeating-linear-gradient(
    90deg,
    currentColor 0 4px,
    transparent 4px 7px
  );
}

.canvas-chart__legend-swatch[data-mark="dotted"] {
  background-image: radial-gradient(currentColor 1px, transparent 1px);
  background-size: 4px 4px;
}

.canvas-chart__tooltip {
  position: absolute;
  left: var(--canvas-space-s);
  top: var(--canvas-space-s);
  z-index: 1;
  max-width: min(100%, 16rem);
  padding: var(--canvas-space-2xs) var(--canvas-space-xs);
  border-radius: var(--canvas-radius-s);
  border: 1px solid var(--canvas-border-default);
  background: var(--canvas-surface-popover);
  color: var(--canvas-text-primary);
  font-size: var(--canvas-font-size-xs);
  box-shadow: var(--canvas-shadow-s);
  pointer-events: none;
}

.canvas-chart__tooltip[hidden] {
  display: none;
}

.canvas-chart__data-table {
  overflow-x: auto;
  border-top: 1px solid var(--canvas-border-default);
  padding-top: var(--canvas-space-s);
}

.canvas-chart__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--canvas-font-size-xs);
  font-family: var(--canvas-font-numbers);
}

.canvas-chart__table-caption {
  text-align: left;
  font-family: var(--canvas-font-label);
  font-weight: var(--canvas-font-weight-medium);
  color: var(--canvas-text-secondary);
  padding-bottom: var(--canvas-space-2xs);
}

.canvas-chart__table th,
.canvas-chart__table td {
  text-align: left;
  padding: var(--canvas-space-2xs) var(--canvas-space-xs);
  border-bottom: 1px solid var(--canvas-border-default);
  color: var(--canvas-text-primary);
}

.canvas-chart__status {
  color: var(--canvas-text-secondary);
  font-size: var(--canvas-font-size-sm);
}

.canvas-chart[data-status="error"] .canvas-chart__status {
  color: var(--canvas-status-danger-fg);
}

.canvas-chart--reduced-motion .canvas-chart__bar,
.canvas-chart--reduced-motion .canvas-chart__slice,
.canvas-chart--reduced-motion .canvas-chart__point {
  transition: none;
}

@media (prefers-reduced-motion: reduce) {
  .canvas-chart__bar,
  .canvas-chart__slice,
  .canvas-chart__point {
    transition: none;
  }
}