:root{--bg:#F7F6F3;--fg:#1B1D26;--muted:#5B5F73;--brand:#4C5BC0;--on-brand:#fff;--card:#fff;--line:#E6E4DF}
@media (prefers-color-scheme:dark){:root{--bg:#131417;--fg:#F1F1F4;--muted:#A6A9B8;--brand:#A3ACE6;--on-brand:#14162B;--card:#1C1D22;--line:#2A2B31}}
*{box-sizing:border-box;margin:0}
body{background:var(--bg);color:var(--fg);font:17px/1.6 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
header{display:flex;align-items:center;gap:12px;padding:24px 0}
header img{width:40px;height:40px;border-radius:10px}
header b{font-size:19px}
header nav{margin-left:auto;display:flex;gap:18px;font-size:15px}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:40px 0 64px}
.hero h1{font-size:clamp(36px,6vw,56px);line-height:1.05;letter-spacing:-1.5px}
.hero p{color:var(--muted);font-size:19px;margin:18px 0 28px}
.btn{display:inline-block;background:var(--brand);color:var(--on-brand);text-decoration:none;padding:14px 22px;border-radius:14px;font-weight:600}
.hero img{width:100%;max-width:360px;justify-self:center;border-radius:28px;box-shadow:0 30px 60px rgba(20,24,60,.2)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding-bottom:64px}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px}
.card h3{font-size:17px;margin-bottom:6px}
.card p{color:var(--muted);font-size:15px}
footer{border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:14px}
.doc{max-width:720px;padding:24px 0 64px}
.doc h1{font-size:38px;letter-spacing:-1px;margin-bottom:6px}
.doc h2{font-size:21px;margin:32px 0 8px}
.doc p,.doc li{color:var(--muted);overflow-wrap:anywhere}
.doc ul{padding-left:22px}
.doc .date{color:var(--muted);font-size:15px}
@media (max-width:720px){.hero{grid-template-columns:1fr;padding-top:16px}header nav{gap:12px}}