:root {
  color-scheme: light dark;
  --bg: #fffdf2;
  --panel: #ffffff;
  --text: #1f2933;
  --muted: #64748b;
  --line: #f3d56b;
  --accent: #22c55e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101827;
    --panel: #172033;
    --text: #f8fafc;
    --muted: #cbd5e1;
    --line: #4b5563;
    --accent: #4ade80;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at 12% 0%, rgba(250, 204, 21, .22), transparent 28rem), var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.doc {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0 64px;
}

nav {
  margin-bottom: 28px;
}

nav a {
  color: var(--muted);
  font-weight: 800;
  text-decoration: none;
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin: 30px 0 10px;
  font-size: 1.25rem;
}

p, li {
  color: var(--text);
}

p {
  margin: 0 0 14px;
}

ul, ol {
  padding-left: 24px;
}

a {
  color: var(--accent);
  font-weight: 700;
}

.updated {
  color: var(--muted);
  font-weight: 700;
}