:root {
  --bg: #0d1321;
  --bg-alt: #121b2d;
  --panel: #18243a;
  --panel-soft: #edf2ff;
  --text: #f5f7fb;
  --muted: #b4c0d3;
  --accent: #74c0fc;
  --accent-strong: #4dabf7;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 30px 80px rgba(2, 6, 23, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background:
    radial-gradient(circle at top, rgba(116, 192, 252, 0.15), transparent 35%),
    linear-gradient(180deg, #0b1120 0%, #111827 100%);
  color: var(--text);
}

body,
a {
  color: var(--text);
}

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding-bottom: 64px;
}

.hero {
  padding: 24px 0 48px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 8px 0 40px;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 1.15rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

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

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.95fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3,
p,
ul {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
  max-width: 11ch;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.9rem, 3vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin-bottom: 14px;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

p,
li {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1rem;
}

.hero-copy {
  max-width: 62ch;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.18s ease, opacity 0.18s ease, border-color 0.18s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #07111f;
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.hero-points {
  padding-left: 18px;
}

.hero-card,
.panel,
.offer-card,
.check-card,
.cta-card,
.timeline article {
  border: 1px solid var(--line);
  background: rgba(11, 17, 32, 0.72);
  backdrop-filter: blur(14px);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.card-label {
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-card ul,
.check-card ul {
  padding-left: 18px;
}

.metric-strip {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.metric-strip strong,
.offer-step {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
}

.section {
  padding: 48px 0;
}

.section-dark,
.section-accent {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 24px;
}

.section-heading.narrow {
  max-width: 760px;
}

.three-up,
.offer-stack,
.check-grid,
.timeline {
  display: grid;
  gap: 20px;
}

.three-up,
.offer-stack,
.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.check-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel,
.offer-card,
.check-card,
.timeline article,
.cta-card {
  padding: 24px;
}

.offer-step {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
}

.offer-price {
  margin-top: 18px;
  font-weight: 700;
  color: var(--text);
}

.timeline article span {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--accent);
  font-weight: 700;
}

.cta-section {
  padding-top: 60px;
}

.cta-card {
  text-align: center;
  padding: 40px 24px;
}

.cta-card p {
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 900px) {
  .hero-grid,
  .three-up,
  .offer-stack,
  .check-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    padding-bottom: 24px;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 20px, 1120px);
  }

  .hero {
    padding-top: 18px;
  }

  .hero-card,
  .panel,
  .offer-card,
  .check-card,
  .timeline article,
  .cta-card {
    border-radius: 20px;
    padding: 20px;
  }

  .button {
    width: 100%;
  }
}