:root { --ink:#1f2328; --muted:#59636e; --line:#d1d9e0; --accent:#1a73e8; --bg:#ffffff; }
@media (prefers-color-scheme: dark) { :root { --ink:#e6edf3; --muted:#9198a1; --line:#3d444d; --accent:#4c9aff; --bg:#0d1117; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
nav { display: flex; gap: 18px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 28px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; } nav a:hover { color: var(--accent); }
nav strong { margin-right: auto; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; } h2 { font-size: 20px; margin-top: 32px; }
a { color: var(--accent); } .muted { color: var(--muted); font-size: 14px; }
code { font-size: 14px; } li { margin: 4px 0; }