:root {
  color-scheme: light;
  --page:           #f0efec;
  --surface-1:      #ffffff;
  --surface-2:      #e9e7e2;
  --text-primary:   #000000;
  --text-secondary: #3d3c38;
  --text-muted:     #55534c;
  --grid:           #d5d3cc;
  --link:           #2a78d6;
  --series-1:       #2a78d6;
  --good:           #0ca30c;
  --border:         rgba(0,0,0,0.18);
  --border-strong:  rgba(0,0,0,0.28);
  --shadow:         0 1px 2px rgba(11,11,11,0.05), 0 10px 28px rgba(11,11,11,0.08);
}
/* Contrast ratios (WCAG relative luminance), verified before shipping:
   text-primary/surface-1  21.0:1   text-secondary/surface-1  11.0:1
   text-muted/surface-1     7.7:1   link/surface-1              4.4:1  */
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page:           #000000;
    --surface-1:      #121212;
    --surface-2:      #1e1e1e;
    --text-primary:   #ffffff;
    --text-secondary: #d8d6cd;
    --text-muted:     #a8a69d;
    --grid:           #2a2a2a;
    --link:           #3987e5;
    --series-1:       #3987e5;
    --good:           #0ca30c;
    --border:         rgba(255,255,255,0.22);
    --border-strong:  rgba(255,255,255,0.34);
    --shadow:         0 1px 2px rgba(0,0,0,0.5), 0 10px 28px rgba(0,0,0,0.5);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page:           #000000;
  --surface-1:      #121212;
  --surface-2:      #1e1e1e;
  --text-primary:   #ffffff;
  --text-secondary: #d8d6cd;
  --text-muted:     #a8a69d;
  --grid:           #2a2a2a;
  --link:           #3987e5;
  --series-1:       #3987e5;
  --good:           #0ca30c;
  --border:         rgba(255,255,255,0.22);
  --border-strong:  rgba(255,255,255,0.34);
  --shadow:         0 1px 2px rgba(0,0,0,0.5), 0 10px 28px rgba(0,0,0,0.5);
}
/* Dark contrast ratios (verified): text-primary/surface-1 18.7:1
   text-secondary/surface-1 12.9:1  text-muted/surface-1 7.7:1  link/surface-1 5.2:1 */

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 920px; margin: 0 auto; padding: 0 20px 64px; }

/* Header */
.hero {
  padding: 48px 0 32px;
  border-bottom: 2px solid var(--border-strong);
  margin-bottom: 32px;
}
.hero-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { font-size: 24px; font-weight: 800; letter-spacing: -0.02em; }
.brand a { color: inherit; }
h1 {
  font-size: 13px; font-weight: 700; color: var(--text-secondary); margin: 8px 0 0;
  text-transform: uppercase; letter-spacing: .06em;
}
h2 {
  font-size: 13px; margin: 40px 0 12px; color: var(--text-primary); font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em;
  padding-bottom: 8px; border-bottom: 2px solid var(--border-strong);
}
.meta { color: var(--text-secondary); font-size: 13px; }
.repo-link {
  font-size: 13px; font-weight: 600; color: var(--text-primary); border: 2px solid var(--border-strong);
  border-radius: 8px; padding: 6px 12px; white-space: nowrap;
}
.repo-link:hover { background: var(--text-primary); color: var(--surface-1); border-color: var(--text-primary); text-decoration: none; }
a { color: var(--link); text-decoration: none; font-weight: 600; }
a:hover { text-decoration: underline; }

/* KPI row */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 24px; }
.stat-tile {
  background: var(--surface-1); border: 1px solid var(--border); border-top: 3px solid var(--series-1);
  border-radius: 10px; padding: 16px 18px; box-shadow: var(--shadow);
}
.stat-label { font-size: 12px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.stat-value { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
.stat-unit { font-size: 12px; color: var(--text-muted); margin-left: 4px; font-weight: 600; }

/* Tables */
.table-wrap {
  overflow-x: auto; overflow-y: hidden; border-radius: 10px; border: 1px solid var(--border);
  box-shadow: var(--shadow); background: var(--surface-1);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--grid); font-variant-numeric: tabular-nums; white-space: nowrap; }
th {
  color: var(--text-primary); font-weight: 700; font-size: 11px; text-transform: uppercase;
  letter-spacing: .05em; background: var(--surface-2); border-bottom: 2px solid var(--border-strong);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--surface-2); }

.footer {
  margin-top: 48px; padding-top: 20px; border-top: 2px solid var(--border-strong);
  color: var(--text-secondary); font-size: 12px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}