/* Charts › the intro: the library, the colours from tokens, axes and legend, the tooltip, loading and empty, motion.
   Tokens only. */
.chn-intro { display: flex; flex-direction: column; gap: var(--space-5); }
.chn-lead { display: flex; flex-direction: column; gap: var(--space-2); max-width: 880px; }
.chn-lead > p { margin: 0; }
.chn-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); align-items: start; }
.chn-card { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-5); min-width: 0; }
.chn-card > h3, .chn-card > p { margin: 0; }
.chn-rules { margin: 0; }
.chn-sws { display: grid; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.chn-sws li { display: flex; align-items: center; gap: var(--space-3); }
.chn-sw { flex: none; width: 32px; height: 16px; border-radius: var(--radius-sm); background: var(--sw); box-shadow: inset 0 0 0 1px var(--color-default); }
.chn-sw__t { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-1) var(--space-2); font-size: var(--text-sm); }
.chn-sw__t code { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-subtle); }
.chn-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chn-tipdemo { padding: var(--space-4) var(--space-4) var(--space-2); border: 1px solid var(--color-default); border-radius: var(--radius-card); background: var(--color-page); }
.chn-tipdemo__bars { position: relative; height: 120px; padding-top: 24px; }
.chn-tipdemo__bars svg { display: block; width: 100%; height: 96px; }
.chn-bar { fill: var(--color-chart-actual); transform-box: fill-box; transform-origin: center bottom; }
@media (prefers-reduced-motion: no-preference) { .chn-bar { animation: chn-grow var(--duration-slow) var(--ease-standard); } }
.chn-bar--focus { stroke: var(--color-ring); stroke-width: 3; paint-order: stroke; }
.chn-axisline { stroke: var(--color-emphasis); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chn-tip { position: absolute; top: 0; left: 50%; display: flex; flex-direction: column; gap: 2px; padding: var(--space-2) var(--space-3); border-radius: var(--radius-control); background: var(--color-surface-inverted); color: var(--color-inverted); font-size: var(--text-xs); line-height: var(--leading-xs); box-shadow: var(--shadow-overlay); white-space: nowrap; }
.chn-states { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
.chn-state { display: flex; flex-direction: column; justify-content: center; gap: var(--space-3); padding: var(--space-4); min-width: 0; }
.chn-state > p { margin: 0; }
.chn-state .ill { width: 96px; height: auto; }
.chn-skel { display: flex; flex-direction: column; gap: var(--space-2); }
.chn-skel .c-skeleton { height: var(--space-4); }
@keyframes chn-grow { from { transform: scaleY(0); } }
@media (max-width: 960px) {
  .chn-grid, .chn-states { grid-template-columns: minmax(0, 1fr); }
}