:root{--bg:#fbfaf7;--fg:#1d1d1b;--muted:#5d5b55;--accent:#e8622c}
@media (prefers-color-scheme:dark){:root{--bg:#141413;--fg:#efeee9;--muted:#a9a79f}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 20px 80px}h1{font-size:2rem;line-height:1.2;margin:0 0 .5rem}h2{font-size:1.15rem;margin:2rem 0 .4rem}
p,li{color:var(--fg)}.muted{color:var(--muted)}a{color:var(--accent)}nav{display:flex;gap:18px;margin-bottom:40px;font-size:.95rem}