:root{
  --bg:#0f1220; --card:#171a2e; --text:#e7e9f3; --muted:#a8aecc; --primary:#7c5cff; --accent:#21d4fd;
  --radius:16px; --shadow:0 10px 30px rgba(0,0,0,.35); --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
.container{max-width:var(--max);margin:auto;padding:clamp(12px,2vw,24px)}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:8px;top:8px;width:auto;height:auto;background:#000;color:#fff;padding:8px 10px;border-radius:8px}
.site-header{position:sticky;top:0;background:rgba(15,18,32,.75);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06);z-index:10}
.brand{display:flex;gap:10px;align-items:center;font-weight:700}
.main-nav ul{display:flex;gap:16px;list-style:none;margin:0;padding:0}
.main-nav a{color:var(--text);text-decoration:none;opacity:.9}
.main-nav a:hover{opacity:1}
.hero{display:grid;gap:16px;text-align:center}
.hero img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:auto}
.lead{font-size:1.125rem;color:var(--muted)}
.cta-wrap{display:flex;justify-content:center;gap:12px;margin:8px 0 4px}
.btn{display:inline-block;border-radius:999px;padding:12px 18px;text-decoration:none}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#0b0e1a;font-weight:700}
.btn.outline{border:1px solid rgba(255,255,255,.2);color:var(--text)}
.stats{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;padding:0;list-style:none;color:var(--muted)}
.note{display:block;text-align:center;color:var(--muted)}
.features .grid-6{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:8px}
.feature{background:var(--card);padding:16px;border-radius:var(--radius);box-shadow:var(--shadow)}
.feature h3{margin:.4rem 0}
.howto .steps{counter-reset: s;display:grid;gap:8px;padding-left:18px}
.howto .steps li{background:var(--card);padding:12px;border-radius:12px}
.howto .tip{margin-top:8px;color:var(--muted)}
.modules .grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.table{width:100%;border-collapse:separate;border-spacing:0 8px}
.table thead th{text-align:left;color:var(--muted);font-weight:600}
.table td,.table th{padding:12px;background:var(--card)}
.table tbody tr td:first-child{border-top-left-radius:8px;border-bottom-left-radius:8px}
.table tbody tr td:last-child{border-top-right-radius:8px;border-bottom-right-radius:8px}
.promo-list{columns:2;gap:24px}
.mobile,.security,.faq,.related{margin-top:16px}
.faq details{background:var(--card);padding:12px;border-radius:12px;margin:8px 0}
.related ul{display:grid;gap:6px;list-style:disc;padding-left:18px}
.footer-nav{display:flex;gap:12px;flex-wrap:wrap}
.site-footer{margin-top:24px;border-top:1px solid rgba(255,255,255,.06);padding:16px 0;color:var(--muted)}
@media (max-width:640px){ .promo-list{columns:1} }