:root {
  color-scheme: light;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --accent: #2a78d6;
  --accent-wash: rgba(42, 120, 214, 0.08);
  --good: #0ca30c;
  --busy: #c98500;
  --bad: #d03b3b;
  --on-accent: #ffffff;
  --warning-ink: #8a5a00;
  --warning-wash: rgba(250, 178, 25, 0.14);
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --series-5: #e87ba4;
  --series-6: #008300;
  --series-7: #4a3aa7;
  --series-8: #e34948;
  --series-muted: #c3c2b7;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --accent: #3987e5;
    --accent-wash: rgba(57, 135, 229, 0.14);
    --warning-ink: #fab219;
    --warning-wash: rgba(250, 178, 25, 0.1);
    --busy: #fab219;
    --bad: #e66767;
    --on-accent: #0b0b0b;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
    --series-muted: #52514e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font: 14px/1.5 var(--font);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: var(--mono); font-size: 12.5px; }

header.site, main, footer.site {
  max-width: 1200px;
  margin: 0 auto;
  padding-inline: 20px;
}

header.site {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-block: 18px 6px;
}
.brand { font-weight: 700; font-size: 16px; color: var(--text-primary); }
.site-tabs { display: flex; gap: 4px; }
.site-tabs a { padding: 3px 12px; border-radius: 8px; color: var(--text-secondary); }
.site-tabs a:hover { text-decoration: none; background: var(--accent-wash); }
.site-tabs a[aria-current="page"] { background: var(--accent-wash); color: var(--text-primary); font-weight: 600; }

main { padding-block: 8px 40px; }
footer.site {
  padding-block: 16px 32px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12.5px;
}
footer.site p { margin: 2px 0; }

h1 { font-size: 26px; margin: 14px 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 32px 0 10px; }
h3 { font-size: 14px; margin: 0; }
.muted { color: var(--text-muted); }
.small { font-size: 12.5px; }
.meta { color: var(--text-secondary); margin: 0 0 16px; }
.crumb { margin: 10px 0 0; font-size: 13px; }

.banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  margin: 8px 0 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.banner .button { margin-left: auto; }

.button, button {
  font: inherit;
  padding: 5px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
}
button:hover, .button:hover { background: var(--accent-wash); text-decoration: none; }

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px 16px;
  margin: 14px 0 6px;
}
.filters label { display: flex; flex-direction: column; gap: 3px; font-size: 12.5px; color: var(--text-secondary); }
.filters label.check { flex-direction: row; align-items: center; gap: 6px; padding-bottom: 6px; }
select {
  font: inherit;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  min-width: 9rem;
}

.table-wrap { overflow-x: auto; margin: 10px 0 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
table.data { border-collapse: collapse; width: 100%; }
table.data th, table.data td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--grid); white-space: nowrap; vertical-align: top; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data th { font-weight: 600; font-size: 12.5px; color: var(--text-secondary); }
table.data th a { color: inherit; }
table.data .num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tbody tr:hover { background: var(--accent-wash); }
table.params td:first-child { width: 14rem; color: var(--text-secondary); }
table.params tr.diff td { background: var(--accent-wash); }
table.params tr.diff td:first-child { box-shadow: inset 3px 0 0 var(--accent); }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 14px; }
.tabs a {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
}
.tabs a:hover { text-decoration: none; background: var(--accent-wash); }
.tabs a[aria-current="page"] { background: var(--text-primary); border-color: var(--text-primary); color: var(--page); }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.tile-label { font-size: 12.5px; color: var(--text-secondary); }
.tile-value { font-size: 24px; font-weight: 600; margin-top: 2px; }
.tile-unit { font-size: 13px; font-weight: 400; color: var(--text-muted); }
.tile-note { font-size: 12px; color: var(--text-muted); }
.warn { padding: 8px 12px; border-radius: 8px; background: var(--warning-wash); color: var(--warning-ink); }

.launch { position: relative; margin: 10px 0; }
.launch pre, pre.raw {
  margin: 0;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.launch pre { padding-right: 80px; }
.launch button { position: absolute; top: 8px; right: 8px; font-size: 12.5px; padding: 3px 10px; }
pre.raw { white-space: pre; word-break: normal; max-height: 32rem; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr)); gap: 14px; margin: 12px 0; }
figure.chart { margin: 0; padding: 14px 16px 10px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; min-width: 0; }
figure.chart figcaption p { margin: 2px 0 8px; font-size: 12.5px; }
.chart-box { position: relative; width: 100%; }

.empty { padding: 24px; background: var(--surface); border: 1px dashed var(--axis); border-radius: 10px; }

/* Homepage */
.intro { max-width: 70ch; margin: 22px 0 18px; }
.intro h1 { font-size: 32px; margin: 0 0 10px; }
.lead { font-size: 16px; line-height: 1.6; color: var(--text-secondary); margin: 0 0 10px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 14px; margin: 22px 0 8px; }
.card { display: flex; flex-direction: column; gap: 10px; padding: 18px 20px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.card h2 { margin: 0; font-size: 18px; }
.card p { margin: 0; }
.card .button { align-self: flex-start; margin-top: auto; }

/* Chat status */
.status { display: inline-flex; align-items: center; gap: 8px; }
.dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); }
.dot.ok { background: var(--good); }
.dot.busy { background: var(--busy); }
.dot.bad { background: var(--bad); }

.button.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 600; }
.button.primary:hover { background: var(--accent); filter: brightness(1.08); }

.tag { display: inline-block; margin-left: 6px; padding: 0 6px; border-radius: 6px; font-size: 11.5px; background: var(--warning-wash); color: var(--warning-ink); vertical-align: 1px; }

/* Methodology */
.prose { max-width: 72ch; }
.prose h2 { margin: 28px 0 8px; }
.prose p, .prose li { line-height: 1.65; }
.prose ul { padding-left: 20px; }
.prose li { margin: 4px 0; }