/* PieChart — part-to-whole share at a glance (owner decision 2026-07-07).
   Rules baked in: ≤6 segments (fold the tail into a muted "Other"), slices in
   the fixed categorical order --chart-1→N with a 2px surface-color gap between
   fills (never a drawn border), in-slice % labels only where they fit (white
   or ink by fill luminance), and a legend carrying label + value in text
   tokens. Use a bar chart instead when close values must be compared.
   Visual source: tokens.css. */

.pie {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 460px;
  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;
}

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

/* Body: plot + legend side by side. */
.pie__body {
  display: flex;
  align-items: center;
  gap: 24px;
}
.pie__plot {
  position: relative;
  flex: none;
  width: 176px;
}
.pie__plot svg {
  display: block;
  width: 100%;
  height: auto;
}

/* Slices — solid categorical fills separated by a 2px surface gap. */
.pie__slice {
  stroke: var(--canvas);
  stroke-width: 2;
  stroke-linejoin: round;
  transition: filter var(--dur-2) var(--ease-out);
  outline: none;
}
.pie__slice--1 {
  fill: var(--chart-1);
}
.pie__slice--2 {
  fill: var(--chart-2);
}
.pie__slice--3 {
  fill: var(--chart-3);
}
.pie__slice--4 {
  fill: var(--chart-4);
}
.pie__slice--5 {
  fill: var(--chart-5);
}
.pie__slice--6 {
  fill: var(--chart-6);
}
.pie__slice--muted {
  fill: var(--chart-muted);
}
.pie__slice:hover {
  filter: brightness(0.95) saturate(1.15);
  cursor: pointer;
}
.pie__slice:focus-visible {
  filter: brightness(0.95) saturate(1.15);
  stroke: var(--pulse-cyan-line);
  stroke-width: 3;
}

/* In-slice % label — only where it fits; white/ink picked by fill luminance
   (ink on the bright cyan/amber/teal fills, white on indigo/pink/blue). */
.pie__slice-label {
  fill: #fff;
  font-size: 13px;
  font-weight: var(--fw-heavy);
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}
.pie__slice-label--ink {
  fill: var(--ink-800);
}

/* Legend — identity + value in text tokens; swatch mirrors the mark. */
.pie__legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  flex: 1;
}
.pie__legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-3);
}
.pie__swatch {
  width: 10px;
  height: 10px;
  border-radius: var(--r-full);
  flex: none;
}
.pie__swatch--1 {
  background: var(--chart-1);
}
.pie__swatch--2 {
  background: var(--chart-2);
}
.pie__swatch--3 {
  background: var(--chart-3);
}
.pie__swatch--4 {
  background: var(--chart-4);
}
.pie__swatch--muted {
  background: var(--chart-muted);
}
.pie__legend-name {
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pie__legend-value {
  margin-left: auto;
  font-weight: var(--fw-heavy);
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

/* 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);
}