:root{--bg:#f6f8fc;--fg:#172033;--mut:#5a6577;--card:#fff;--bd:#dde3ee;--ac:#1a2490;--ac2:#12877a}
@media (prefers-color-scheme:dark){:root{--bg:#0d1420;--fg:#e6ebf5;--mut:#9aa6bd;--card:#151e2e;--bd:#27324a;--ac:#8aa0ff;--ac2:#4fd1c5}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 "Inter",system-ui,-apple-system,Segoe UI,sans-serif}
header{background:linear-gradient(125deg,#131a70,#1a2490 55%,#2434a8);color:#fff}
.w{max-width:960px;margin:0 auto;padding:0 20px}
nav{display:flex;justify-content:space-between;align-items:center;padding:18px 0;gap:12px;flex-wrap:wrap}nav b{font-size:19px;letter-spacing:.01em}nav a{color:#dfe5ff;text-decoration:none;margin-left:18px;font-size:15px}nav a:hover{color:#fff}
.hero{padding:44px 0 64px}.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.15;margin:0 0 12px}.hero p{max-width:620px;margin:0;color:#dfe5ff;font-size:18px}
main{padding:36px 0 56px}h2{font-size:24px;margin:34px 0 12px}h3{font-size:18px;margin:0 0 6px}
.g{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.c{background:var(--card);border:1px solid var(--bd);border-radius:14px;padding:18px}
.c p{margin:0;color:var(--mut)}ul{padding-left:20px}li{margin:4px 0}
footer{border-top:1px solid var(--bd);color:var(--mut);padding:22px 0;font-size:14px}a{color:var(--ac)}
.k{display:grid;gap:6px}