:root{--bg:#fff;--bg-alt:#f6f8fb;--fg:#0f172a;--muted:#5b6b82;--line:#e3e8ef;--accent:#0369a1}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--bg-alt:#111a2b;--fg:#e6edf7;--muted:#9aa9bf;--line:#1e293b;--accent:#38bdf8}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;color:var(--fg)}
.logo{width:28px;height:28px;border-radius:7px;background:#0f172a;display:grid;place-items:center;color:#38bdf8;font-weight:800;font-size:13px}
main{padding:56px 0 72px}
h1{font-size:30px;letter-spacing:-.02em;margin:0 0 8px}
.upd{color:var(--muted);font-size:14px;margin:0 0 36px}
h2{font-size:18px;letter-spacing:-.01em;margin:34px 0 8px}
p,li{color:var(--muted)}
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:14px}