:root{--bg:#f7f5f0;--ink:#1d2a24;--muted:#5b6b63;--accent:#1f5c46;--line:#dcd6c8}
@media (prefers-color-scheme:dark){:root{--bg:#141a17;--ink:#e8ece9;--muted:#9fb0a7;--accent:#7fc4a6;--line:#2c3631}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 16px 64px}
h1{font-size:1.7rem;line-height:1.25;margin:0 0 4px}
h2{font-size:1.15rem;margin:28px 0 8px;color:var(--accent)}
p,li{margin:0 0 10px}
.muted{color:var(--muted);font-size:.92rem}
nav{display:flex;gap:16px;margin-bottom:24px;font-size:.95rem}
a{color:var(--accent)}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.box{border:1px solid var(--line);border-radius:12px;padding:16px;margin:16px 0}