:root{--bg:#fff;--fg:#1b1f24;--mut:#57606a;--lk:#0b5cad;--bd:#d0d7de}
@media (prefers-color-scheme:dark){:root{--bg:#0d1117;--fg:#e6edf3;--mut:#9aa4af;--lk:#6cb6ff;--bd:#30363d}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:46rem;margin:0 auto;padding:1.25rem 1rem 3rem}
h1{font-size:1.6rem;line-height:1.25}
h2{font-size:1.15rem;margin-top:2rem;border-bottom:1px solid var(--bd);padding-bottom:.25rem}
a{color:var(--lk)}
nav a{margin-right:1rem}
.mut{color:var(--mut)}
li{margin:.25rem 0}
footer{margin-top:3rem;color:var(--mut);font-size:.9rem}