/* VerticalBarChart — column scaffold for single-series and grouped bar charts.
   Chart-norm rebuild (owner decision 2026-07-07): bars are thin (≤24px) solid
   series fills, fully domed at the data end (r = w/2, stylized big-radius
   marks) and square at the baseline; gridlines are solid hairlines; series
   colors come from the validated --chart-* palette (slot 1 = brand cyan for
   single series, slots 1+2 grouped — never rank- or value-colored).
   Labels/ticks wear text tokens, never the series color. Hover = mark lift +
   shared .chart-tip readout (also on keyboard focus).
   Visual source: tokens.css. */

.vbar {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 572px;
  padding: 21px;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
  font-family: var(--font-sans);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.vbar__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.vbar__title {
  margin: 0;
  font-size: var(--fs-6);
  font-weight: var(--fw-heavy);
  letter-spacing: -0.01em;
}
.vbar__sub {
  margin: 2px 0 0;
  font-size: var(--fs-2);
  color: var(--text-4);
}

/* Legend — present only for ≥2 series; swatches mirror the bar mark. */
.vbar__legend {
  display: flex;
  align-items: center;
  gap: 16px;
}
.vbar__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-2);
  color: var(--text-3);
}
.vbar__swatch {
  width: 10px;
  height: 10px;
  border-radius: var(--r-full);
  flex: none;
}
.vbar__swatch--a {
  background: var(--chart-1);
}
.vbar__swatch--b {
  background: var(--chart-2);
}

/* Plot. */
.vbar__plot {
  position: relative;
  width: 100%;
}
.vbar__plot svg {
  display: block;
  width: 100%;
  height: auto;
}
.vbar__grid {
  stroke: var(--border);
  stroke-width: 1;
}
.vbar__baseline {
  stroke: var(--border-strong);
  stroke-width: 1;
}
.vbar__ticks,
.vbar__cats {
  fill: var(--text-4);
  font-size: 12px;
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
}
/* Selective direct label — a chip pinned on the peak/extreme mark only
   (reference-style read-out; ink surface, never the series color as text). */
.vbar__chip {
  position: absolute;
  transform: translate(-50%, -130%);
  padding: 3px 9px;
  border-radius: var(--r-full);
  background: var(--ink-900);
  color: #fff;
  font-size: var(--fs-1);
  font-weight: var(--fw-heavy);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  box-shadow: var(--shadow-1);
}
/* Annotation naming a segment — quiet ink, uppercase label voice. */
.vbar__note {
  fill: var(--text-4);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  font-family: var(--font-sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.vbar__bar {
  transition:
    filter var(--dur-2) var(--ease-out),
    opacity var(--dur-2) var(--ease-out);
  outline: none;
}
/* Two-series pair reads light/deep on the ONE brand hue (owner decision:
   charts run light→dark, never a wall of deep fills). */
.vbar__bar--a {
  fill: var(--chart-1);
}
.vbar__bar--b {
  fill: var(--chart-2);
}
/* Single series: bars wear the sequential ramp BY VALUE (taller = deeper) —
   the light→dark read is the story; the extreme carries the pinned chip. */
.vbar__bar--r100 {
  fill: var(--chart-seq-100);
}
.vbar__bar--r200 {
  fill: var(--chart-seq-200);
}
.vbar__bar--r300 {
  fill: var(--chart-seq-300);
}
.vbar__bar--r400 {
  fill: var(--chart-seq-400);
}
.vbar__bar--r500 {
  fill: var(--chart-seq-500);
}
.vbar__bar--r600 {
  fill: var(--chart-seq-600);
}
/* The peak/extreme — the one black anchor, paired with the pinned chip. */
.vbar__bar--hot {
  fill: var(--chart-emphasis);
}
.vbar__bar:hover {
  filter: brightness(0.95) saturate(1.15);
  cursor: pointer;
}
.vbar__bar:focus-visible {
  filter: brightness(0.95) saturate(1.15);
  stroke: var(--pulse-cyan-line);
  stroke-width: 3;
}

/* Shared hover readout (value leads, label follows). */
.chart-tip {
  position: absolute;
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 10px));
  display: none;
  flex-direction: column;
  gap: 1px;
  padding: 7px 10px;
  border-radius: var(--r-md);
  background: var(--ink-900);
  color: #fff;
  font-size: var(--fs-2);
  line-height: 1.35;
  white-space: nowrap;
  box-shadow: var(--shadow-2);
  z-index: 2;
}
.chart-tip.is-visible {
  display: flex;
}
.chart-tip__value {
  font-weight: var(--fw-heavy);
  font-size: var(--fs-3);
  font-variant-numeric: tabular-nums;
}
.chart-tip__label {
  color: rgba(255, 255, 255, 0.72);
}

/* Summary stat row — reference anatomy: series key + label above, big value
   with an inline delta below, left-aligned on a soft surface. */
.vbar__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.vbar__stat {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 12px 14px;
  border-radius: var(--r-lg);
  background: var(--surface);
}
.vbar__stat-head {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-2);
  color: var(--text-3);
}
.vbar__stat-key {
  width: 8px;
  height: 8px;
  border-radius: var(--r-full);
  flex: none;
}
.vbar__stat-key--a {
  background: var(--chart-1);
}
.vbar__stat-key--b {
  background: var(--chart-2);
}
.vbar__stat-key--muted {
  background: var(--chart-muted);
}
.vbar__stat-row {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.vbar__stat-num {
  font-size: var(--fs-8);
  font-weight: var(--fw-heavy);
  line-height: 1;
  letter-spacing: -0.02em;
}
.vbar__stat-delta {
  font-size: var(--fs-1);
  font-weight: var(--fw-semibold);
  font-variant-numeric: tabular-nums;
}
/* Reference marks (average / target / benchmark): the only DASHED line in a
   chart — gridlines stay solid so references stand apart. Always labeled. */
.vbar__ref {
  stroke: var(--text-4);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}
.vbar__ref-label {
  fill: var(--text-3);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
}

/* Delta whisper (owner decision 922322d): improving numbers stay neutral and
   only the direction arrow carries green — declines/flats keep their tint so
   the minority pops. */
.vbar__stat-delta--up {
  color: var(--text-3);
}
.vbar__stat-delta--up .vbar__stat-delta-arrow {
  color: var(--success-600);
}
.vbar__stat-delta--flat {
  color: var(--blue-600);
}
.vbar__stat-delta--down {
  color: var(--red-600);
}

/* Stat-first hero — the widget leads with its number; the chart is evidence
   (owner-approved reference anatomy: kicker → hero value → chart). */
.vbar__hero {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: -6px;
}
.vbar__hero-value {
  font-size: var(--fs-9);
  font-weight: var(--fw-heavy);
  line-height: 1;
  letter-spacing: -0.02em;
}
.vbar__hero-delta {
  font-size: var(--fs-2);
  font-weight: var(--fw-semibold);
  color: var(--success-600);
}