:root{--bg:#F5F3EE;--fg:#1B1C1E;--muted:#6B665E;--accent:#B87F00;--line:#DDD8CE}
@media (prefers-color-scheme:dark){:root{--bg:#111214;--fg:#ECEAE5;--muted:#9A948A;--accent:#F2A900;--line:#2A2B2E}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",sans-serif}
main{max-width:680px;margin:0 auto;padding:56px 20px 80px}
a{color:var(--accent)}
header a{text-decoration:none;color:var(--fg);font-weight:700;letter-spacing:.02em}
h1{font-size:2.2rem;line-height:1.15;margin:40px 0 8px}
h2{font-size:1.15rem;margin:36px 0 6px}
.tag{color:var(--muted);margin-top:0}
.card{border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:28px 0}
.card h2{margin-top:0}
footer{color:var(--muted);font-size:.85rem;margin-top:64px;border-top:1px solid var(--line);padding-top:16px}