:root{color-scheme:light dark;--fg:#1d2a24;--muted:#55635c;--bg:#f6f8f6;--accent:#0f5c40}
@media (prefers-color-scheme:dark){:root{--fg:#e7efe9;--muted:#a9b8b0;--bg:#0f1613;--accent:#7fcca6}}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:24px 16px 64px;overflow-wrap:anywhere}
h1{font-size:1.8rem;line-height:1.25;margin:.5rem 0 1rem}h2{font-size:1.25rem;margin:2rem 0 .5rem}h3{font-size:1.05rem;margin:1.5rem 0 .25rem}
a{color:var(--accent)}em{color:var(--muted)}ul{padding-left:1.25rem}li{margin:.35rem 0}