:root{--bg:#f3f5f2;--surface:#fff;--fg:#18231f;--muted:#5d6b64;--accent:#1d6b5a;--line:#d5dbd2}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#111816;--surface:#18211e;--fg:#e6eee9;--muted:#9aaaa2;--accent:#5fbfa5;--line:#2e3b36;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#111816;--surface:#18211e;--fg:#e6eee9;--muted:#9aaaa2;--accent:#5fbfa5;--line:#2e3b36;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 "Segoe UI",system-ui,sans-serif}
main{max-width:760px;margin:24px auto;padding:24px 16px 48px;background:var(--surface);border:1px solid var(--line);border-radius:10px}
h1{font-size:28px;margin:.2em 0 .1em;letter-spacing:-.01em}
h2{font-size:18px;margin:1.6em 0 .4em}
.meta{color:var(--muted);font-size:14px}
a{color:var(--accent)}
.back{margin:0;font-size:14px}
ul{padding-left:1.2em}
li{margin:.3em 0}
@media (max-width:800px){main{margin:0;border:0;border-radius:0}}