:root {
  color-scheme: dark;
  --bg: #06161d;
  --panel: #0b2630;
  --panel-2: #0f303b;
  --text: #eefafb;
  --muted: #9bb7bd;
  --line: #234955;
  --cyan: #3bd6e5;
  --green: #4be39a;
  --amber: #ffc96b;
  --shadow: 0 26px 80px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 2%, rgba(59, 214, 229, .15), transparent 28rem),
    radial-gradient(circle at 8% 28%, rgba(75, 227, 154, .08), transparent 24rem),
    var(--bg);
  font: 16px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; }
.wrap { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -.02em; text-decoration: none; }
.mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; color: #05212a; background: linear-gradient(135deg, var(--cyan), var(--green)); font-weight: 950; }
.links { display: flex; gap: 20px; color: var(--muted); font-size: 14px; }
.links a { text-decoration: none; }
.links a:hover { color: var(--text); }
.hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: center; padding: 82px 0 72px; }
.hero.single { grid-template-columns: 1fr; max-width: 850px; }
.eyebrow { color: var(--green); font-size: 12px; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
h1 { margin: 14px 0 20px; font-size: clamp(44px, 7vw, 74px); line-height: 1.02; letter-spacing: -.055em; }
h1 em { color: transparent; background: linear-gradient(90deg, var(--cyan), var(--green)); background-clip: text; font-style: normal; }
h2 { margin: 0 0 14px; font-size: clamp(30px, 4vw, 46px); line-height: 1.1; letter-spacing: -.035em; }
h3 { margin: 8px 0 9px; font-size: 22px; line-height: 1.25; }
.lead { max-width: 720px; margin: 0; color: #bdd2d6; font-size: clamp(18px, 2vw, 22px); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 0 22px; border: 1px solid var(--line); border-radius: 13px; text-decoration: none; font-weight: 800; }
.button.primary { color: #05212a; border: 0; background: linear-gradient(90deg, var(--cyan), var(--green)); }
.button.disabled { color: #78969d; background: #102b34; cursor: not-allowed; }
.proof { display: flex; flex-wrap: wrap; gap: 14px 24px; margin-top: 26px; color: var(--muted); font-size: 14px; }
.proof span::before { content: "✓"; color: var(--green); margin-right: 7px; font-weight: 900; }
.visual { min-height: 330px; display: grid; align-content: center; gap: 14px; padding: 30px; border: 1px solid var(--line); border-radius: 26px; background: linear-gradient(145deg, rgba(15, 53, 64, .96), rgba(7, 25, 34, .94)); box-shadow: var(--shadow); }
.visual .flow { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; }
.visual .node { padding: 18px; border: 1px solid #2f5b65; border-radius: 16px; background: #0b222b; text-align: center; }
.visual .arrow { color: var(--green); font-size: 28px; }
.visual small { color: var(--muted); }
section { padding: 66px 0; }
.section-copy { max-width: 740px; margin: 0 0 30px; color: var(--muted); font-size: 18px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { display: flex; flex-direction: column; min-height: 320px; padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: rgba(10, 35, 44, .82); }
.card.featured { border-color: #397866; box-shadow: 0 0 0 1px rgba(75, 227, 154, .08); }
.price { color: var(--green); font-size: 14px; font-weight: 850; }
.card p { margin: 0 0 20px; color: var(--muted); }
.card .text-link { margin-top: auto; color: var(--cyan); font-weight: 800; text-decoration: none; }
.detail-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 32px; }
.panel { padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); }
.panel p { color: var(--muted); }
.checklist { padding: 0; margin: 20px 0 0; list-style: none; }
.checklist li { padding: 10px 0 10px 28px; border-bottom: 1px solid rgba(155, 183, 189, .12); position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.notice { padding: 18px 20px; border-left: 3px solid var(--amber); border-radius: 10px; color: #d6c49c; background: rgba(255, 201, 107, .07); }
.faq { display: grid; gap: 12px; }
.faq details { padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq p { margin: 10px 0 0; color: var(--muted); }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; padding: 34px 0 48px; color: var(--muted); border-top: 1px solid rgba(155, 183, 189, .14); font-size: 13px; }
@media (max-width: 860px) {
  .links { display: none; }
  .hero, .detail-grid, .grid { grid-template-columns: 1fr; }
  .hero { gap: 38px; padding-top: 54px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }