:root{--bg:#faf7f2;--fg:#1d2330;--muted:#4b5363;--accent:#6d28d9;--card:#fff;--line:#e7e1d8}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#15121d;--fg:#ece9f5;--muted:#b3abc9;--accent:#b79cff;--card:#1f1a2b;--line:#2e2740}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header{border-bottom:1px solid var(--line);background:var(--card)}
header .in,main{max-width:760px;margin:0 auto;padding:16px}
header .in{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#4c1d95,#6d28d9);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px}
header b{font-size:17px}header nav{margin-left:auto;display:flex;gap:16px;font-size:15px}
a{color:var(--accent)}
h1{font-size:28px;line-height:1.25;margin:.6em 0 .3em}h2{font-size:19px;margin:1.6em 0 .4em}
p,li{color:var(--muted)}li{margin:.25em 0}
.note{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:16px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}.card h3{margin:0 0 6px;font-size:16px}
.card p{margin:0}
footer{max-width:760px;margin:24px auto;padding:16px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
code{font-size:.92em}