:root{--bg:#f8fafc;--fg:#0f172a;--muted:#475569;--card:#fff;--line:#e2e8f0;--accent:#0d9488;--code:#f1f5f9}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--fg:#e2e8f0;--muted:#94a3b8;--card:#111a2b;--line:#1e2b40;--accent:#2dd4bf;--code:#16223a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main,header,footer{max-width:760px;margin:0 auto;padding:0 16px}
header{display:flex;justify-content:space-between;align-items:center;padding-top:24px;padding-bottom:24px}
header a.brand{font-weight:800;font-size:20px;color:var(--fg);text-decoration:none;letter-spacing:-.02em}
nav a{color:var(--muted);text-decoration:none;margin-left:16px;font-size:15px}
nav a:hover,a{color:var(--accent)}
h1{font-size:34px;line-height:1.2;letter-spacing:-.02em;margin:8px 0 12px}
h2{font-size:22px;margin:40px 0 8px}
p.lead{font-size:19px;color:var(--muted);margin-top:0}
code{background:var(--code);padding:1px 6px;border-radius:4px;font-size:.9em}
pre{background:var(--code);padding:12px 16px;border-radius:8px;overflow-x:auto}
img{max-width:100%;height:auto;border-radius:10px;border:1px solid var(--line)}
.card{display:flex;gap:16px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;color:inherit;text-decoration:none}
.card img{width:64px;height:64px;border:0;border-radius:14px;flex:none}
.card h3{margin:0 0 4px;font-size:19px}
.card p{margin:0;color:var(--muted)}
.badge{display:inline-block;font-size:13px;padding:2px 10px;border-radius:99px;border:1px solid var(--line);color:var(--muted);margin-top:8px}
ul{padding-left:20px}
li{margin:4px 0}
footer{color:var(--muted);font-size:14px;padding-top:48px;padding-bottom:32px}