/* viz.css: shared look for the lessons' interactive visualizations, in the site's theme tokens. */
.viz {
  margin: 1rem 0 1.4rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--p-border);
  border-radius: 0.6rem;
  background: var(--p-card);
  color: var(--p-fg);
  font: 14px/1.5 system-ui, -apple-system, sans-serif;
  max-width: 44rem;
  box-sizing: border-box;
}
.viz-row {
  display: grid;
  grid-template-columns: minmax(8rem, 12rem) 1fr 6.5rem;
  gap: 0.6rem;
  align-items: center;
  margin: 0.25rem 0;
}
.viz-row select { grid-column: 2 / 4; justify-self: start; }
/* A long option label must shrink with the card, not push it past a phone's edge. */
.viz-row > * { min-width: 0; }
.viz select { max-width: 100%; }
.viz-row input[type="range"] { width: 100%; accent-color: var(--p-accent); }
.viz-row output { font-variant-numeric: tabular-nums; color: var(--p-muted); text-align: right; }
.viz select {
  font: inherit;
  color: var(--p-fg);
  background: var(--p-bg);
  border: 1px solid var(--p-border);
  border-radius: 0.35rem;
  padding: 0.15rem 0.4rem;
}
.viz input:focus-visible, .viz select:focus-visible { outline: 2px solid var(--p-accent); outline-offset: 2px; }
.viz-readout { margin-top: 0.6rem; font-variant-numeric: tabular-nums; }
.viz-bars { margin-top: 0.5rem; }
.viz-bar { display: grid; grid-template-columns: 7rem 1fr; gap: 0.6rem; align-items: center; margin: 0.25rem 0; }
.viz-bar .track { position: relative; height: 1rem; border-radius: 0.3rem; background: var(--p-card-2); overflow: hidden; }
.viz-bar .fill { position: absolute; inset: 0 auto 0 0; border-radius: 0.3rem; background: var(--p-accent); }
.viz-bar .fill.second { background: var(--p-muted); }
.viz-bar .limit { position: absolute; top: -0.2rem; bottom: -0.2rem; width: 2px; background: var(--p-fg); }
.viz .viz-note { color: var(--p-muted); font-size: 0.92em; margin: 0.4rem 0 0; }
@media (max-width: 560px) {
  .viz-row { grid-template-columns: 1fr 5.5rem; }
  .viz-row span { grid-column: 1 / 3; }
  .viz-row select { grid-column: 1 / 3; }
}