:root{--bg:#fafaf8;--fg:#1b1d1f;--muted:#5d636a;--line:#e3e3df}
@media (prefers-color-scheme:dark){:root{--bg:#111315;--fg:#ecece8;--muted:#a3a8ad;--line:#2a2d30}}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,system-ui,sans-serif}
main{max-width:680px;margin:0 auto;padding:56px 16px}
h1{font-size:28px;margin:0 0 8px}h2{font-size:19px;margin:32px 0 8px}
p,li{color:var(--muted)}a{color:inherit}footer{margin-top:48px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}