:root{--bg:#fafaf8;--fg:#1b1d22;--muted:#5b616e;--accent:#2f5bd3;--line:#e3e4e8}
@media (prefers-color-scheme:dark){:root{--bg:#121316;--fg:#ececef;--muted:#a3a8b4;--accent:#7f9ef5;--line:#2a2c33}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;padding-top:18px;padding-bottom:18px;gap:16px;flex-wrap:wrap}
.brand{font-weight:700;font-size:20px;color:var(--fg);text-decoration:none;letter-spacing:-.01em}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:15px}
nav a:first-child{margin-left:0}
nav a:hover{color:var(--fg)}
main{padding:56px 0 64px}
h1{font-size:40px;line-height:1.15;letter-spacing:-.02em;margin:0 0 16px}
h2{font-size:22px;margin:40px 0 8px}
p,li{color:var(--fg)}
.lead{font-size:20px;color:var(--muted);margin:0 0 8px}
a{color:var(--accent)}
.card{border:1px solid var(--line);border-radius:12px;padding:20px 22px;margin-top:12px}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .wrap{padding-top:20px;padding-bottom:28px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
footer a{color:var(--muted)}