:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: #0d1b2e;
  --card: rgba(255, 255, 255, 0.07);
  --card-strong: rgba(255, 255, 255, 0.11);
  --text: #f4f7fb;
  --muted: #b9c5d7;
  --line: rgba(255, 255, 255, 0.16);
  --ice: #9de7ff;
  --blue: #3ea7ff;
  --gold: #f9c74f;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(62, 167, 255, 0.26), transparent 34rem),
    radial-gradient(circle at 80% 10%, rgba(157, 231, 255, 0.18), transparent 30rem),
    linear-gradient(180deg, #07111f 0%, #07111f 55%, #0a1627 100%);
  color: var(--text);
  min-height: 100vh;
}

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

.site-header {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -0.02em; }
.mark {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--ice), var(--blue));
  color: #06101d; font-weight: 900;
  box-shadow: 0 10px 35px rgba(62, 167, 255, 0.28);
}

nav { display: flex; gap: 18px; color: var(--muted); font-size: 0.95rem; }
nav a:hover { color: var(--text); }

.hero {
  width: min(1120px, calc(100% - 32px));
  margin: 42px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 34px;
  align-items: center;
  padding: 32px 0 68px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--ice);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 800;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: clamp(3.2rem, 7vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
  margin-bottom: 24px;
  max-width: 850px;
}

.lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.55;
  color: var(--muted);
  max-width: 720px;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 16px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  min-height: 48px;
  padding: 0 22px;
  font-weight: 800;
  border: 1px solid transparent;
}
.button.primary { background: var(--text); color: #07111f; }
.button.primary:hover { background: var(--ice); }
.button.secondary { border-color: var(--line); color: var(--text); background: rgba(255,255,255,.04); }
.button.secondary:hover { border-color: var(--ice); }
.trust-note, .small { color: var(--muted); font-size: 0.94rem; }

.hero-card, .features article, .checklist, .beta-inner {
  background: linear-gradient(180deg, var(--card-strong), var(--card));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.hero-card { padding: 30px; }
.card-topline { color: var(--gold); font-size: 0.82rem; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 18px; }
.hero-card h2 { font-size: 2rem; letter-spacing: -0.04em; }
ul { margin: 0; padding-left: 1.15rem; color: var(--muted); }
li { margin: 12px 0; line-height: 1.45; }
strong { color: var(--text); }

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
  border-top: 1px solid rgba(255,255,255,.1);
}
.section-heading { max-width: 760px; margin-bottom: 28px; }
h2 { font-size: clamp(2rem, 4vw, 3.55rem); line-height: 1; letter-spacing: -0.06em; margin-bottom: 18px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.features article { padding: 26px; box-shadow: none; }
.number { color: var(--gold); font-weight: 900; }
h3 { font-size: 1.35rem; letter-spacing: -0.03em; margin: 16px 0 10px; }
.features p, .checklist p, .beta p { color: var(--muted); line-height: 1.55; }

.split { display: grid; grid-template-columns: 1fr 0.82fr; gap: 36px; align-items: start; }
.checklist { padding: 26px; box-shadow: none; }

.beta { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 40px 0 72px; }
.beta-inner { padding: clamp(28px, 5vw, 54px); text-align: center; }
.beta-inner p { max-width: 720px; margin-left: auto; margin-right: auto; }
.beta .button { margin: 12px 0 18px; }
footer { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 42px; color: var(--muted); border-top: 1px solid rgba(255,255,255,.1); }

@media (max-width: 820px) {
  .site-header { align-items: flex-start; }
  nav { display: none; }
  .hero, .split { grid-template-columns: 1fr; }
  .hero { margin-top: 8px; padding-bottom: 48px; }
  .features { grid-template-columns: 1fr; }
  h1 { font-size: clamp(3.4rem, 16vw, 5.2rem); }
}