:root {
  --surface-1: #fcfcfb;
  --page: #f9f9f7;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-serenedb: #2a78d6;
  --series-qdrant: #1baf7a;
  --series-serenedb-light: color-mix(in srgb, #2a78d6 42%, #fcfcfb);
  --series-qdrant-light: color-mix(in srgb, #1baf7a 42%, #fcfcfb);
  --code-bg: #f0efec;
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface-1: #1a1a19;
    --page: #0d0d0d;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-serenedb: #3987e5;
    --series-qdrant: #199e70;
    --series-serenedb-light: color-mix(in srgb, #3987e5 45%, #1a1a19);
    --series-qdrant-light: color-mix(in srgb, #199e70 45%, #1a1a19);
    --code-bg: #26261f;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

header h1 {
  font-size: 1.6rem;
  margin: 0 0 8px;
}

header p.lede {
  color: var(--text-secondary);
  margin: 0 0 4px;
  max-width: 70ch;
}

#meta-line {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 12px 0 0;
}

.caveats {
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.caveats summary {
  cursor: pointer;
  color: var(--text-primary);
  font-weight: 600;
}

.caveats ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

section.chart-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

section.chart-section h2 {
  font-size: 1.2rem;
  margin: 0 0 6px;
}

section.chart-section p.desc {
  color: var(--text-secondary);
  margin: 0 0 18px;
  max-width: 68ch;
}

.chart-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.chart-card canvas {
  max-height: 340px;
}

/* Panels within a row (build-time, index-size) share row tracks via subgrid,
   so the shorter description doesn't leave its chart starting higher than
   its neighbor's -- h3 / desc / chart-card / details all align across
   columns. The chart-card itself gets a fixed height (rather than relying
   on both columns happening to compute the same aspect-ratio height) so the
   two charts are the same size outright; app.js sets
   `maintainAspectRatio: false` on these so Chart.js fills it exactly. */
.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto auto auto;
  gap: 28px;
}

@media (max-width: 720px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }
}

.panel-grid > div {
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 4;
}

.panel-grid > div h3 {
  font-size: 0.95rem;
  margin: 0 0 4px;
}

.panel-grid > div p.desc {
  font-size: 0.85rem;
  margin: 0 0 12px;
}

.panel-grid .chart-card {
  height: 460px;
  display: flex;
  flex-direction: column;
}

.panel-grid .chart-card canvas {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
}

details.data-table {
  margin-top: 14px;
}

details.data-table summary {
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  font-size: 0.82rem;
}

table caption {
  text-align: left;
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-bottom: 6px;
}

th, td {
  text-align: right;
  padding: 5px 8px;
  border-bottom: 1px solid var(--gridline);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

th:first-child, td:first-child,
th:nth-child(2), td:nth-child(2) {
  text-align: left;
  font-variant-numeric: normal;
  white-space: normal;
}

th {
  color: var(--text-muted);
  font-weight: 600;
}

code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.85em;
}

footer {
  margin-top: 56px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

footer a {
  color: inherit;
}