:root {
  color-scheme: light dark;
  --accent: #FFBB00;
  --fg: #1a1a1a;
  --bg: #ffffff;
  --muted: #666;
}
@media (prefers-color-scheme: dark) {
  :root { --fg: #eaeaea; --bg: #121212; --muted: #999; }
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
}
h1 { font-size: 1.6rem; margin-bottom: 0.25rem; }
h2 { font-size: 1.15rem; margin-top: 2rem; border-bottom: 2px solid var(--accent); padding-bottom: 0.25rem; }
.updated { color: var(--muted); font-size: 0.9rem; margin-bottom: 2rem; }
a { color: #b8860b; }
@media (prefers-color-scheme: dark) { a { color: var(--accent); } }
nav a { margin-right: 1rem; }
footer { margin-top: 3rem; color: var(--muted); font-size: 0.85rem; }