:root{--bg:#f7f8fb;--card:#fff;--ink:#141824;--muted:#5b6478;--line:#e3e6ee;--accent:#2f5bea;--accent-ink:#fff;--soft:#eaf0ff}
@media (prefers-color-scheme:dark){:root{--bg:#0f121a;--card:#171b26;--ink:#e8ebf3;--muted:#9aa3b8;--line:#262c3b;--accent:#5b82ff;--soft:#1b2440}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}
header{border-bottom:1px solid var(--line);background:var(--card)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px;flex-wrap:wrap}
.logo{font-weight:800;font-size:20px;color:var(--ink);letter-spacing:-.02em}
.logo span{color:var(--accent)}
.nav nav{display:flex;gap:20px;flex-wrap:wrap}
.nav nav a{color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:10px 18px;border-radius:10px;font-weight:600;border:0;cursor:pointer;font-size:15px}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}
.hero{padding-block:64px 40px}
.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.15;margin:0 0 16px;letter-spacing:-.02em;text-wrap:balance;max-width:20ch}
.hero p{color:var(--muted);font-size:18px;max-width:58ch;margin:0 0 24px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-top:40px}
.fact{border-left:3px solid var(--accent);padding-left:12px}
.fact b{display:block;font-size:22px}
.fact span{color:var(--muted);font-size:14px}
section{padding-block:40px}
h2{font-size:28px;margin:0 0 20px;letter-spacing:-.01em}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:10px}
.tag{align-self:flex-start;background:var(--soft);color:var(--accent);font-size:12px;font-weight:600;padding:3px 10px;border-radius:99px;letter-spacing:.03em;text-transform:uppercase}
.card h3{margin:0;font-size:19px}
.card p{margin:0;color:var(--muted)}
.meta{display:flex;justify-content:space-between;font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:10px;margin-top:auto;font-variant-numeric:tabular-nums}
.steps{counter-reset:s;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.steps div{counter-increment:s}
.steps div::before{content:counter(s);display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--soft);color:var(--accent);font-weight:700;margin-bottom:8px}
.steps p{margin:0;color:var(--muted)}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
details p{color:var(--muted);margin:10px 0 0}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px;padding-block:28px;margin-top:20px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.auth{max-width:400px;margin:64px auto;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px}
.auth h1{font-size:24px;margin:0 0 6px}
.auth p{color:var(--muted);margin:0 0 18px}
label{display:block;font-size:14px;margin:12px 0 6px}
input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-size:15px}
.err{color:#d6453d;font-size:14px;min-height:20px;margin-top:10px}