/* Shared design tokens + nav/footer/card components for all three site pages. */

:root {
  color-scheme: light;
  --surface-1:      #fcfcfb;
  --page-plane:     #f9f9f7;
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --text-muted:     #898781;
  --gridline:       #e1e0d9;
  --border:         rgba(11,11,11,0.10);
  --accent:         #2a78d6;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface-1:      #1a1a19;
    --page-plane:     #0d0d0d;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted:     #898781;
    --gridline:       #2c2c2a;
    --border:         rgba(255,255,255,0.10);
    --accent:         #3987e5;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-1:      #1a1a19;
  --page-plane:     #0d0d0d;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted:     #898781;
  --gridline:       #2c2c2a;
  --border:         rgba(255,255,255,0.10);
  --accent:         #3987e5;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page-plane);
  color: var(--text-primary);
}
.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

/* ---- sticky top nav (shared across all pages) ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
}
.site-nav .nav-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-nav .wordmark {
  font-weight: 700;
  font-size: 15px;
  color: var(--text-primary);
  text-decoration: none;
}
.site-nav .links {
  display: flex;
  gap: 20px;
  font-size: 14px;
}
.site-nav .links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
}
.site-nav .links a:hover { color: var(--text-primary); }
.site-nav .links a[aria-current="page"] { color: var(--accent); }

/* ---- shared sub-page header block (eyebrow/title/subtitle) ---- */
header.page-header { padding-top: 40px; }
header.page-header p.eyebrow {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
header.page-header h1 {
  margin: 0 0 8px;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.2;
}
header.page-header p.subtitle {
  margin: 0 0 32px;
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 65ch;
}

/* ---- shared card ---- */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: clamp(12px, 3vw, 24px) clamp(12px, 3vw, 28px) 20px;
}

/* ---- shared stat tiles ---- */
.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 20px;
}
.stat-tile { min-width: 130px; }
.stat-tile .label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.stat-tile .value {
  font-size: 22px;
  font-weight: 600;
}

/* ---- shared footer ---- */
footer.site-footer {
  margin-top: 32px;
  font-size: 13px;
  color: var(--text-secondary);
}
footer.site-footer a { color: inherit; }
footer.site-footer p { margin: 0 0 6px; }

@media (max-width: 640px) {
  .site-nav .nav-inner { justify-content: flex-start; }
  .site-nav .links { gap: 14px; }
}