:root {
  --bg: #081120;
  --surface: #0f172a;
  --surface-alt: #111c34;
  --card: rgba(15, 23, 42, 0.82);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.18);
  --brand: #38bdf8;
  --brand-dark: #0ea5e9;
  --accent: #22c55e;
  --shadow: 0 20px 50px rgba(2, 6, 23, 0.35);
  --radius: 18px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.12), transparent 28%),
    linear-gradient(180deg, #020617 0%, #081120 100%);
  line-height: 1.6;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(2, 6, 23, 0.72);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  color: #fff;
  text-decoration: none;
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.brand:hover,
.brand:focus-visible {
  color: #fff;
}

.hero {
  padding: 5.5rem 0 4rem;
}

.hero-grid,
.two-column {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--brand);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.8rem, 6vw, 4.75rem);
  max-width: 12ch;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.65rem;
}

.hero-copy,
.section-heading p,
.info-card p,
.step p,
.two-column p,
.cta-box p,
.hero-points,
.feature-list,
.trust-bar {
  color: var(--muted);
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.6rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #03111f;
  background: linear-gradient(135deg, #67e8f9, var(--brand));
}

.button-secondary {
  color: var(--text);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--line);
}

.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.trust-bar span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.06);
  font-size: 0.95rem;
}

.hero-card,
.info-card,
.step,
.cta-box {
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.6rem;
  border-radius: var(--radius);
}

.hero-card h2 {
  font-size: 1.65rem;
}

.hero-card ul,
.feature-list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.card-kicker {
  display: inline-block;
  margin-bottom: 0.8rem;
  color: var(--accent);
  font-weight: 700;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: rgba(15, 23, 42, 0.45);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.card-grid,
.steps,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.info-card,
.step {
  border-radius: 16px;
  padding: 1.5rem;
}

.step span {
  display: inline-flex;
  width: 2.2rem;
  height: 2.2rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--brand);
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-section {
  padding-bottom: 5.5rem;
}

.cta-box {
  border-radius: 24px;
  padding: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.16), rgba(34, 197, 94, 0.12));
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2rem;
  background: rgba(2, 6, 23, 0.65);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .two-column,
  .card-grid,
  .steps,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-direction: column;
    justify-content: center;
    padding: 0.85rem 0;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 4rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  h1 {
    max-width: 100%;
  }

  .cta-box,
  .hero-card,
  .info-card,
  .step {
    padding: 1.25rem;
  }

  .trust-bar {
    flex-direction: column;
  }
}