:root {
  color-scheme: dark;
  --bg: #050814;
  --bg-soft: #0a1020;
  --panel: rgba(12, 18, 34, 0.92);
  --panel-strong: rgba(16, 25, 48, 0.98);
  --line: rgba(120, 160, 255, 0.2);
  --text: #ecf3ff;
  --muted: #9fb0cc;
  --accent: #4dc3ff;
  --accent-2: #32f4a2;
  --warn: #ffd166;
  --shadow: 0 24px 64px rgba(2, 8, 23, 0.45);
  --radius: 24px;
  --radius-sm: 14px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(77, 195, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(50, 244, 162, 0.12), transparent 22%),
    linear-gradient(180deg, #04070f 0%, #050814 44%, #030510 100%);
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

body {
  line-height: 1.6;
}

a {
  color: inherit;
}

.seo-shell {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.seo-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(5, 8, 20, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.seo-topbar-inner {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.seo-brand img {
  width: 36px;
  height: 36px;
}

.seo-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.seo-nav a,
.seo-nav .seo-cta {
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  padding: 10px 14px;
  border-radius: 999px;
  transition: 140ms ease;
}

.seo-nav a:hover,
.seo-nav .seo-cta:hover {
  color: var(--text);
  border-color: rgba(77, 195, 255, 0.4);
  transform: translateY(-1px);
}

.seo-nav .seo-cta {
  color: #00131d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  font-weight: 700;
}

.hero {
  padding: 72px 0 32px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 28px;
  align-items: stretch;
}

.hero-copy,
.hero-card,
.content-card,
.faq-item,
.route-card,
.compare-card,
.cta-strip {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 34px;
  border-radius: var(--radius);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  line-height: 0.98;
  margin: 0 0 18px;
}

.hero p {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0;
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions a {
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 999px;
  font-weight: 700;
}

.hero-primary {
  color: #00131d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.hero-secondary {
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.hero-card {
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
}

.hero-card h2,
.content-card h2,
.section-title,
.faq-item h3,
.route-card h3,
.compare-card h3 {
  margin: 0;
}

.stats-grid,
.feature-grid,
.route-grid,
.compare-grid,
.faq-grid {
  display: grid;
  gap: 18px;
}

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

.stat {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.stat strong {
  display: block;
  font-size: 1.45rem;
  margin-bottom: 4px;
}

.section {
  padding: 18px 0 10px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.5rem, 2.5vw, 2.3rem);
}

.section-head p {
  color: var(--muted);
  max-width: 640px;
  margin: 0;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-card,
.route-card,
.compare-card,
.faq-item,
.cta-strip {
  border-radius: var(--radius-sm);
  padding: 22px;
}

.content-card p,
.route-card p,
.compare-card p,
.faq-item p,
.content-card li,
.compare-card li,
.route-card li {
  color: var(--muted);
}

.content-card ul,
.route-card ul,
.compare-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
}

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

.faq-grid {
  grid-template-columns: 1fr;
}

.cta-strip {
  margin: 36px 0 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cta-strip a {
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 999px;
  color: #00131d;
  background: linear-gradient(135deg, var(--warn), #ffe59d);
  font-weight: 700;
}

.seo-footer {
  padding: 0 0 42px;
  color: var(--muted);
}

.seo-footer-inner {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  align-items: center;
}

.seo-footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

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

.seo-footer-links a:hover {
  color: var(--text);
}

.muted-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .feature-grid,
  .route-grid,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .seo-topbar-inner,
  .seo-footer-inner {
    width: min(var(--max), calc(100% - 24px));
  }

  .hero {
    padding-top: 42px;
  }

  .cta-strip,
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  .seo-topbar-inner {
    min-height: 64px;
  }

  .seo-nav {
    display: none;
  }

  .hero-copy,
  .hero-card,
  .content-card,
  .route-card,
  .compare-card,
  .faq-item,
  .cta-strip {
    padding: 18px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}