:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #111318;
  --muted: #5b6270;
  --accent: #25D366;
  --border: #e6e8ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #f2f3f5;
    --muted: #a2a8b4;
    --border: #23262e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding: 24px;
}
a { color: var(--fg); }

/* Home page: centred card */
body.home {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}
body.home main {
  max-width: 480px;
  width: 100%;
  text-align: center;
}
body.home h1 { font-size: 2rem; margin: 0 0 12px; letter-spacing: -0.02em; }
p.tagline { color: var(--muted); font-size: 1.05rem; line-height: 1.5; margin: 0 0 32px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 40px;
}
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

/* Document pages */
body.doc main {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 0 0;
  line-height: 1.65;
}
body.doc h1 { font-size: 1.75rem; margin: 0 0 4px; letter-spacing: -0.02em; }
body.doc h2 { font-size: 1.1rem; margin: 36px 0 8px; letter-spacing: -0.01em; }
body.doc h3 { font-size: 0.95rem; margin: 24px 0 6px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
body.doc p, body.doc li { font-size: 0.95rem; }
body.doc ul { padding-left: 20px; }
body.doc li { margin-bottom: 6px; }
.eyebrow { display: inline-block; font-size: 0.85rem; color: var(--muted); text-decoration: none; margin-bottom: 24px; }
.updated { color: var(--muted); font-size: 0.85rem; margin: 0 0 8px; }
.addr { font-style: normal; color: var(--muted); font-size: 0.95rem; }

footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.7;
}
body.doc footer { max-width: 680px; margin: 48px auto 0; }
footer a { color: var(--muted); }
footer nav a { margin-right: 14px; }