/* ── Chart section wrapper ───────────────────────────────────────────────── */
.chart-section {
  padding: 18px 0 8px;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.chart-section:last-child {
  border-bottom: none;
}

.chart-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 700;
  margin-bottom: 10px;
  padding: 0 2px;
  display: flex;
  align-items: center;
  gap: 7px;
}

/* Colored accent pip before every chart title */
.chart-title::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--chart-accent, rgba(0,0,0,0.18));
  flex-shrink: 0;
}

.chart-container {
  width: 100%;
  overflow: visible;
}

.chart-container svg {
  overflow: visible;
  display: block;
}

/* ── D3 axis styles ──────────────────────────────────────────────────────── */
.axis text {
  font-size: 10px;
  fill: var(--text-muted);
  font-family: var(--font-body);
}

.axis path,
.axis line {
  stroke: rgba(0,0,0,0.09);
}

.axis .domain {
  display: none;
}

/* ── Horizontal grid lines (light) ──────────────────────────────────────── */
.chart-grid line {
  stroke: rgba(0,0,0,0.06);
  stroke-dasharray: 3 3;
}

.chart-grid .domain {
  display: none;
}

/* ── Chart elements ──────────────────────────────────────────────────────── */
.chart-line {
  fill: none;
  stroke-width: 2.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.18));
}

.chart-area {
  opacity: 0.18;
}

.chart-dot {
  transition: r 120ms ease, filter 120ms ease;
  cursor: pointer;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.22));
}

.chart-dot:hover {
  r: 5;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.35));
}

.chart-bar {
  cursor: pointer;
  transition: opacity 140ms ease, filter 140ms ease;
  rx: 3;
}

.chart-bar:hover {
  opacity: 1 !important;
  filter: brightness(1.12);
}

/* ── Shared tooltip ──────────────────────────────────────────────────────── */
#chart-tooltip {
  position: fixed;
  background: #1a1a2e;
  color: #ffffff;
  padding: 7px 12px;
  border-radius: 7px;
  font-size: 12px;
  font-family: var(--font-body);
  letter-spacing: 0.04em;
  pointer-events: none;
  opacity: 0;
  transition: opacity 100ms ease;
  z-index: var(--z-tooltip);
  white-space: nowrap;
  line-height: 1.5;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  border-left: 3px solid var(--chart-accent, #888);
}

/* ── Sparse data notice ──────────────────────────────────────────────────── */
.chart-notice {
  font-size: 10.5px;
  color: var(--text-muted);
  font-style: italic;
  padding: 2px 2px 8px;
  letter-spacing: 0.02em;
  background: rgba(0,0,0,0.03);
  border-radius: 4px;
  padding: 5px 9px;
  margin-bottom: 6px;
}

/* ── Bar label (count at end of horizontal bars) ────────────────────────── */
.bar-label {
  font-size: 10px;
  font-weight: 700;
  fill: var(--text-secondary);
  font-family: var(--font-body);
}