:root{--bg:#f7f3f2;--fg:#2b231d;--muted:#6b5f55;--card:#fff;--line:#e5ded9;--link:#7a5c3e}
@media (prefers-color-scheme:dark){:root{--bg:#1b1816;--fg:#efe9e4;--muted:#b3a89e;--card:#262220;--line:#3a3431;--link:#d9b48f}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}h1{font-size:1.8rem;margin:0 0 4px}h2{font-size:1.15rem;margin:32px 0 8px}
.sub{color:var(--muted);margin:0 0 24px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:16px 0}
a{color:var(--link)}ul{padding-left:1.2em}footer{margin-top:40px;color:var(--muted);font-size:.9rem}