:root {
  --bg: #071427;
  --bg-soft: #0d1f39;
  --panel: rgba(15, 34, 63, 0.9);
  --text: #e8f4ff;
  --muted: #a8c0de;
  --line: rgba(126, 183, 255, 0.16);
  --primary: #24b7ff;
  --primary-2: #52f2ff;
  --success: #3ce08f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(82, 242, 255, 0.16), transparent 30%),
    radial-gradient(circle at top left, rgba(36, 183, 255, 0.12), transparent 32%),
    var(--bg);
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(16px); background: rgba(7,20,39,0.8); border-bottom: 1px solid var(--line); }
.topbar-inner, .footer-inner { display:flex; align-items:center; justify-content:space-between; gap: 20px; padding: 16px 0; }
.brand { display:flex; align-items:center; gap:12px; font-weight:700; letter-spacing:.02em; }
.brand img { width:48px; height:48px; object-fit:cover; border-radius:14px; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
nav { display:flex; gap: 18px; color: var(--muted); }
.hero { display:grid; grid-template-columns: 1.1fr .9fr; gap: 30px; padding: 54px 0 28px; align-items:center; }
.hero-art img { width:100%; max-width:520px; display:block; margin: 0 auto; border-radius: 28px; box-shadow: 0 22px 60px rgba(0,0,0,.35); }
.badge, .pill { display:inline-flex; padding: 8px 12px; border-radius: 999px; font-size: 14px; font-weight: 700; background: rgba(36,183,255,.15); color: #8feeff; border: 1px solid rgba(82,242,255,.2); }
.hero h1, .section h1 { font-size: clamp(40px, 7vw, 72px); line-height: .96; margin: 18px 0 16px; }
.hero p, .section p { color: var(--muted); font-size: 18px; line-height: 1.6; }
.hero-actions { display:flex; gap: 14px; flex-wrap: wrap; margin: 24px 0; }
.btn { display:inline-flex; align-items:center; justify-content:center; min-height: 48px; padding: 0 18px; border-radius: 16px; border: 1px solid var(--line); font-weight: 700; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #05111f; box-shadow: 0 16px 40px rgba(36,183,255,.24); }
.btn-ghost { background: rgba(255,255,255,.04); }
.btn-block { width: 100%; }
.checks, .plain-list { padding-left: 18px; color: var(--muted); line-height: 1.8; }
.section, .pricing-preview { padding: 28px 0 46px; }
.section-head { display:flex; align-items:end; justify-content:space-between; gap:20px; margin-bottom: 18px; }
.section-head.wide { margin-bottom: 26px; }
.cards-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 26px; padding: 24px; box-shadow: 0 20px 60px rgba(0,0,0,.24); }
.tariff-card { display:flex; flex-direction:column; gap:12px; }
.price { font-size: 40px; font-weight: 800; }
.form-card { max-width: 760px; margin: 0 auto; }
.form-grid { display:grid; gap: 14px; margin-top: 20px; }
.form-grid label { display:grid; gap:8px; }
.form-grid input { width:100%; min-height: 48px; padding: 0 14px; border-radius: 14px; background: rgba(255,255,255,.04); color: var(--text); border: 1px solid rgba(255,255,255,.12); }
.narrow { max-width: 860px; }
.alert { margin-top: 14px; padding: 12px 14px; border-radius: 14px; background: rgba(255, 96, 96, 0.12); border: 1px solid rgba(255, 96, 96, 0.2); }
.muted { color: var(--muted); }
.success-grid { display:grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
.qr-card { text-align:center; }
.qr { max-width: 280px; width:100%; background:#fff; border-radius: 22px; padding: 12px; }
.info-list { display:grid; gap: 12px; margin: 18px 0 24px; }
code { display:inline-block; padding: 4px 8px; border-radius: 10px; background: rgba(255,255,255,.06); word-break: break-all; }
.footer { border-top: 1px solid var(--line); color: var(--muted); margin-top: 12px; }
@media (max-width: 980px) {
  .hero, .success-grid, .cards-grid { grid-template-columns: 1fr; }
  nav { display:none; }
}

.guide-grid { grid-template-columns: repeat(2, 1fr); }
.guide-card { display:flex; flex-direction:column; gap:14px; }
.guide-links { display:flex; flex-wrap:wrap; gap:10px; }
.guide-steps { padding-left: 20px; color: var(--muted); line-height: 1.75; margin: 0; }
@media (max-width: 980px) { .guide-grid { grid-template-columns: 1fr; } }