:root{--paper:#f5f3ee;--ink:#16171a;--muted:#5d5f66;--amber:#a86d06;--card:#fff}
@media (prefers-color-scheme:dark){:root{--paper:#0c0d0f;--ink:#ecebe7;--muted:#a3a4a9;--amber:#f2b544;--card:#17181b}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
header{display:flex;gap:16px;align-items:center;margin-bottom:24px}
header img{width:64px;height:64px;border-radius:15px}
h1{font-size:28px;margin:0;line-height:1.2}
header p{margin:2px 0 0;color:var(--muted)}
h2{font-size:20px;margin:32px 0 8px}
a{color:var(--amber)}
.card{background:var(--card);border-radius:16px;padding:16px 20px;margin:14px 0}
ul{padding-left:22px}
nav a{margin-right:16px}
footer{margin-top:40px;color:var(--muted);font-size:14px}