:root { --bg:#fff; --fg:#1d1d1f; --muted:#5f6368; --line:#e3e3e6; --link:#0b57d0; }
@media (prefers-color-scheme: dark) { :root { --bg:#141416; --fg:#ececef; --muted:#a3a3ab; --line:#2c2c31; --link:#8ab4f8; } }
* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--fg); font:16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.wrap { max-width:720px; margin:0 auto; padding:40px 16px 64px; }
h1 { font-size:1.9rem; line-height:1.2; margin:0 0 4px; }
h2 { font-size:1.15rem; margin:32px 0 8px; }
p, li { margin:0 0 10px; }
a { color:var(--link); }
.meta { color:var(--muted); margin-bottom:24px; }
nav { border-bottom:1px solid var(--line); padding-bottom:12px; margin-bottom:28px; }
nav a { margin-right:16px; }
table { width:100%; border-collapse:collapse; margin:8px 0 12px; }
th, td { text-align:left; padding:8px 10px; border-bottom:1px solid var(--line); vertical-align:top; }
th { color:var(--muted); font-weight:600; font-size:.9rem; }