:root{color-scheme:light dark;--bg:#fff;--fg:#1b1c1a;--muted:#5b5f58;--accent:#2e7d32;--card:#f2f5ef}
@media (prefers-color-scheme:dark){:root{--bg:#121411;--fg:#e4e6df;--muted:#a3a89d;--accent:#90ee90;--card:#1c1f1a}}
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:760px;margin:0 auto;padding:24px 16px 64px}
h1{font-size:1.7rem;margin:.2em 0}h2{font-size:1.2rem;margin:1.6em 0 .4em;color:var(--accent)}
a{color:var(--accent)}.muted{color:var(--muted);font-size:.9rem}
nav{display:flex;gap:16px;flex-wrap:wrap;margin:8px 0 24px}
section.lang{background:var(--card);border-radius:16px;padding:8px 20px 20px;margin:20px 0}
ul{padding-left:1.2em}