:root {
  --sky: #0284C7;
  --sky-dark: #0369A1;
  --sky-soft: #E0F2FE;
  --gray: #64748B;
  --ink: #0F172A;
  --bg: #F8FAFC;
  --card: #FFFFFF;
  --line: #E2E8F0;
  --ok: #047857;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

a { color: var(--sky-dark); }

img { max-width: 100%; }

.wrap {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap,
.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand img { width: 42px; height: 40px; }

.brand span b { color: var(--sky); font-weight: 800; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: center;
}

.nav a {
  text-decoration: none;
  color: var(--gray);
  font-weight: 600;
  font-size: 0.94rem;
}

.nav a:hover,
.nav a.active { color: var(--sky-dark); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--sky);
  color: #fff !important;
  font-weight: 800;
  text-decoration: none;
  border: 0;
}

.btn.ghost {
  background: transparent;
  color: var(--sky-dark) !important;
  border: 1.5px solid #BAE6FD;
}

.hero {
  background:
    radial-gradient(1200px 420px at 10% -10%, #7DD3FC 0%, transparent 50%),
    linear-gradient(180deg, #E0F2FE 0%, var(--bg) 72%);
  padding: 36px 0 20px;
}

.hero-grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 7vw, 3.4rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.hero p.lead {
  margin: 0 0 20px;
  font-size: 1.12rem;
  color: var(--gray);
  max-width: 38rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.hero-card {
  background: var(--card);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 16px 40px rgba(2, 132, 199, 0.12);
}

.hero-card dt { color: var(--gray); font-size: 0.82rem; font-weight: 700; }
.hero-card dd { margin: 0 0 12px; font-weight: 800; }

.section { padding: 36px 0; }

.section h2 {
  margin: 0 0 8px;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.muted { color: var(--gray); }

.grid-2,
.grid-3 {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}

.card h3 { margin: 0 0 8px; font-size: 1.15rem; }

.steps { counter-reset: step; }

.steps li {
  list-style: none;
  margin: 0 0 12px;
  padding-left: 42px;
  position: relative;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: var(--sky-soft);
  color: var(--sky-dark);
  font-weight: 800;
  font-size: 0.85rem;
  display: grid;
  place-items: center;
}

.price-note {
  background: #ECFDF5;
  color: var(--ok);
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 700;
}

.es-block {
  background: #F1F5F9;
  border-radius: 16px;
  padding: 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  margin-top: 24px;
}

.site-footer nav { display: flex; flex-wrap: wrap; gap: 12px 16px; }
.site-footer a { color: var(--gray); text-decoration: none; font-weight: 600; }

.legal { padding: 28px 0 64px; }

.prose {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 20px 36px;
}

.prose h1 { margin-top: 0; font-size: 1.7rem; }
.prose h2 { margin-top: 1.6em; font-size: 1.25rem; }
.prose h3 { margin-top: 1.3em; font-size: 1.05rem; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
.prose ul { padding-left: 1.2em; }
.prose code { background: #F1F5F9; padding: 0 5px; border-radius: 6px; }

.support-grid { display: grid; gap: 16px; }

@media (min-width: 800px) {
  .hero-grid,
  .grid-2,
  .support-grid { grid-template-columns: 1.15fr 0.85fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .how { grid-template-columns: 1fr 1fr; }
}