:root {
  --bg: #ffffff;
  --card: #ffffff;
  --border: #eaeaea;
  --text: #111827;
  --muted: #6b7280;

  /* Purple (as you requested) */
  --bar: #7c3aed;          /* purple-600 */
  --barHover: #6d28d9;     /* purple-700 */
  --barDim: rgba(124, 58, 237, 0.25);

  --highlight: #111827;    /* outline for highlight */
  --grid: #eef2f7;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

.page { padding: 28px; max-width: 1200px; margin: 0 auto; }
.header { margin-bottom: 18px; }
.title { font-size: 44px; letter-spacing: -0.02em; margin: 0; }

.card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--card);
  padding: 18px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: end;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}

.control { display: flex; flex-direction: column; gap: 6px; }
.control label { font-weight: 600; font-size: 14px; color: var(--text); }

select {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 14px;
  background: white;
  min-width: 160px;
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  user-select: none;
  color: var(--text);
}
.checkbox input { width: 16px; height: 16px; }

.highlightPick select { min-width: 220px; }

.chartWrap { margin-top: 8px; }
.chartHeader {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 8px;
}
.chartTitle { font-size: 16px; font-weight: 700; }
.chartHint { font-size: 13px; color: var(--muted); }

.scrollX {
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: 14px;
  border: 1px solid var(--border);
}

.chartMount { padding: 8px; }

.emptyState {
  margin-top: 10px;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  color: var(--muted);
}
.hidden { display: none; }

/* SVG styles */
svg { display: block; }

.axisText { fill: var(--muted); font-size: 12px; }
.valueText { fill: #111827; font-size: 12px; font-weight: 700; }
.modelText { fill: #111827; font-size: 12px; }
.metaText { fill: var(--muted); font-size: 11px; }

.gridLine { stroke: var(--grid); stroke-width: 1; }
.axisLine { stroke: #cfd6e4; stroke-width: 1; }

.bar {
  fill: var(--bar);
  cursor: pointer;
  transition: opacity 120ms ease, transform 120ms ease, fill 120ms ease;
}
.bar:hover { fill: var(--barHover); }

.bar.dimmed { opacity: 0.28; }
.bar.highlighted {
  opacity: 1 !important;
  outline: none;
}

.barOutline {
  fill: none;
  stroke: var(--highlight);
  stroke-width: 2;
  pointer-events: none;
}