:root{--bg:#fbfaf7;--surface:#fff;--ink:#15171c;--ink-2:#3d424d;--muted:#5d6370;--line:#e6e3dc;--brand:#1f5eff;--brand-ink:#fff}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#0f1115;--surface:#171a21;--ink:#f2f3f5;--ink-2:#c9ccd3;--muted:#a3a8b3;--line:#2a2f3a;--brand:#5b8bff;--brand-ink:#0b0d12}}
:root[data-theme="dark"]{--bg:#0f1115;--surface:#171a21;--ink:#f2f3f5;--ink-2:#c9ccd3;--muted:#a3a8b3;--line:#2a2f3a;--brand:#5b8bff;--brand-ink:#0b0d12}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 18px/1.7 "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, sans-serif}
a{color:var(--brand)}
.wrap{max-width:780px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line)}
.nav{max-width:1160px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-weight:800;font-size:24px;letter-spacing:-.02em;color:var(--ink);text-decoration:none}.logo span{color:var(--brand)}
.btn{display:inline-flex;border-radius:12px;padding:12px 18px;font-weight:600;font-size:16px;text-decoration:none;background:var(--brand);color:var(--brand-ink)}
main{padding:56px 0 40px}
h1{font-size:clamp(34px,5vw,46px);letter-spacing:-.03em;line-height:1.1;margin:0 0 8px}
.updated{color:var(--muted);margin:0 0 36px;font-size:16px}
h2{font-size:23px;letter-spacing:-.01em;margin:40px 0 10px}
p,li{color:var(--ink-2)}ul{padding-left:22px}li{margin:6px 0}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:15px;padding:28px 0 48px;margin-top:40px}
footer a{color:var(--muted)}