:root {
  --ink: #18181b;
  --muted: #71717a;
  --body: #3f3f46;
  --link: #00a36f;
  --bg: #ededed;
  --line: #d4d4d8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
nav { font-size: 0.85rem; margin-bottom: 1.5rem; }
nav a { color: var(--link); margin-right: 0.85rem; }
h1 { font-size: 1.6rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.05rem; margin: 1.75rem 0 0.4rem; }
p, li, dd { color: var(--body); font-size: 0.95rem; }
dt { font-weight: 700; margin-top: 1rem; }
.meta { color: var(--muted); font-size: 0.8rem; }
a { color: var(--link); }
ul { padding-left: 1.25rem; }
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted);
}