:root{--bg:#fbfaf7;--fg:#1d2621;--muted:#5b665f;--accent:#2f7a5b}
@media (prefers-color-scheme:dark){:root{--bg:#141815;--fg:#e8ece9;--muted:#a3ada6;--accent:#6cc39b}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
main{max-width:680px;margin:0 auto;padding:56px 16px}
h1{font-size:2rem;margin:0 0 8px}h2{font-size:1.15rem;margin-top:32px}
p,li{color:var(--fg)}.muted{color:var(--muted)}a{color:var(--accent)}
footer{margin-top:48px;font-size:.9rem;color:var(--muted)}