:root {
  --ink: #0b1020;
  --muted: #5b6780;
  --line: #e4e8f0;
  --brand: #2563eb;
  --bg: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font: 16px/1.6 -apple-system, "Segoe UI", "Noto Sans", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── шапка ─────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 22px 56px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
}
.logo { font-size: 21px; font-weight: 800; letter-spacing: -.03em; }
.logo span { color: var(--brand); }
.nav nav { display: flex; gap: 28px; margin-right: auto; font-size: 15px; color: var(--muted); }
.nav nav a:hover { color: var(--ink); }
.cta {
  background: var(--ink);
  color: #fff;
  padding: 11px 20px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 600;
}

/* ── первый экран ──────────────────────────────────────── */
.hero {
  padding: 84px 56px 70px;
  background:
    radial-gradient(760px 420px at 85% -10%, rgba(37,99,235,.14), transparent 65%),
    radial-gradient(520px 360px at 5% 110%, rgba(168,85,247,.12), transparent 60%);
}
.badge {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(37,99,235,.09);
  color: var(--brand);
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 22px;
}
h1 {
  font-size: 58px;
  line-height: 1.08;
  letter-spacing: -.035em;
  font-weight: 800;
  margin-bottom: 20px;
}
.lead { font-size: 19px; color: var(--muted); max-width: 580px; }

.actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  padding: 14px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15.5px;
  box-shadow: 0 10px 24px rgba(37,99,235,.28);
}
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }

.stats { display: flex; gap: 56px; margin-top: 58px; flex-wrap: wrap; }
.stats strong { display: block; font-size: 32px; letter-spacing: -.03em; }
.stats span { color: var(--muted); font-size: 14px; }

/* ── карточки ──────────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  padding: 10px 56px 70px;
}
.cards article {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  background: #fff;
}
.ico { width: 46px; height: 46px; border-radius: 13px; margin-bottom: 18px; }
.cards h3 { font-size: 19px; margin-bottom: 8px; letter-spacing: -.02em; }
.cards p { color: var(--muted); font-size: 15px; }

/* ── полоса CTA ────────────────────────────────────────── */
.band {
  margin: 0 56px 64px;
  padding: 54px;
  border-radius: 24px;
  background: linear-gradient(130deg, #101935 0%, #1e3a8a 60%, #2563eb 100%);
  color: #fff;
  text-align: center;
}
.band h2 { font-size: 34px; letter-spacing: -.03em; margin-bottom: 10px; }
.band p { color: rgba(255,255,255,.72); margin-bottom: 26px; }
.band .btn { background: #fff; color: #10204a; box-shadow: none; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 56px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  flex-wrap: wrap;
}

/* ── мобильная версия ──────────────────────────────────── */
@media (max-width: 760px) {
  .nav { padding: 16px 20px; gap: 14px; }
  .nav nav { display: none; }
  .cta { margin-left: auto; padding: 9px 15px; font-size: 13.5px; }

  .hero { padding: 40px 20px 44px; }
  h1 { font-size: 34px; }
  .lead { font-size: 16px; }
  .actions { margin-top: 26px; }
  .btn { padding: 13px 22px; font-size: 15px; }
  .stats { gap: 26px; margin-top: 38px; }
  .stats strong { font-size: 25px; }

  .cards { grid-template-columns: 1fr; padding: 4px 20px 48px; gap: 14px; }
  .cards article { padding: 22px; }

  .band { margin: 0 20px 44px; padding: 34px 24px; }
  .band h2 { font-size: 25px; }

  footer { padding: 22px 20px 34px; }
}