:root{color-scheme:light dark;--bg:#fff;--fg:#111;--muted:#666;--accent:#0a84ff;--card:#f5f5f7}
@media(prefers-color-scheme:dark){:root{--bg:#050810;--fg:#f2f2f7;--muted:#9a9aa5;--card:#12141c}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text",Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
main{max-width:720px;margin:0 auto;padding:48px 20px 80px}header{display:flex;align-items:center;gap:12px;margin-bottom:8px}
header .dot{width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(10,132,255,.2)}
h1{font-size:30px;margin:0 0 4px}h2{font-size:20px;margin:36px 0 8px}p.meta{color:var(--muted);margin:0 0 28px}
.card{background:var(--card);border-radius:14px;padding:16px 18px;margin:16px 0}ul{padding-left:20px}a{color:var(--accent);text-decoration:none}
footer{margin-top:56px;color:var(--muted);font-size:14px}footer a{margin-right:14px}