:root {
  --seo-bg: #091325;
  --seo-bg-soft: #10203c;
  --seo-surface: rgba(13, 23, 42, 0.88);
  --seo-surface-strong: rgba(17, 28, 51, 0.96);
  --seo-border: rgba(148, 163, 184, 0.18);
  --seo-text: #eef5ff;
  --seo-text-soft: #b6c4da;
  --seo-primary: #3b82f6;
  --seo-primary-strong: #2563eb;
  --seo-primary-soft: rgba(59, 130, 246, 0.18);
  --seo-success: #22c55e;
  --seo-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --seo-radius-xl: 32px;
  --seo-radius-lg: 24px;
  --seo-radius-md: 18px;
  --seo-radius-sm: 14px;
  --seo-container: 1180px;
  --seo-font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--seo-font);
  background:
    radial-gradient(circle at top left, rgba(59,130,246,0.22), transparent 34%),
    radial-gradient(circle at top right, rgba(34,197,94,0.12), transparent 28%),
    linear-gradient(180deg, #07111f 0%, #0b1730 100%);
  color: var(--seo-text);
  position: relative;
}

.seo-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 0% 0%, rgba(59,130,246,0.14), transparent 30%),
    radial-gradient(circle at 100% 10%, rgba(34,197,94,0.10), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(17,24,39,0.28), transparent 30%);
  pointer-events: none;
}

.seo-container {
  width: min(var(--seo-container), calc(100% - 40px));
  margin: 0 auto;
}

.seo-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(7, 17, 31, 0.74);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.seo-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--seo-text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.seo-brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(59,130,246,0.24), rgba(34,197,94,0.20));
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.seo-brand-mark .material-symbols-rounded {
  font-size: 22px;
}

.seo-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  flex: 1;
}

.seo-nav a {
  color: var(--seo-text-soft);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all .18s ease;
  font-size: 14px;
}

.seo-nav a:hover,
.seo-nav a.active {
  color: var(--seo-text);
  background: rgba(59,130,246,0.10);
  border-color: rgba(59,130,246,0.22);
}

.seo-main {
  padding: 28px 0 80px;
}

.seo-hero {
  padding: 26px 0 18px;
}

.seo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, .9fr);
  gap: 28px;
  align-items: stretch;
}

.seo-eyebrow,
.seo-section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(59,130,246,0.14);
  border: 1px solid rgba(59,130,246,0.18);
  color: #dcecff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.seo-hero h1 {
  margin: 18px 0 16px;
  font-size: clamp(40px, 5vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.05em;
  max-width: 760px;
}

.seo-lead {
  margin: 0;
  max-width: 760px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--seo-text-soft);
}

.seo-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.seo-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--seo-border);
  color: var(--seo-text);
  font-size: 14px;
}

.seo-chip .material-symbols-rounded,
.seo-card-icon .material-symbols-rounded,
.seo-highlight-icon .material-symbols-rounded {
  font-size: 18px;
}

.seo-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.seo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

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

.seo-btn-primary {
  background: linear-gradient(135deg, var(--seo-primary), var(--seo-primary-strong));
  color: #fff;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.28);
}

.seo-btn-ghost {
  color: var(--seo-text);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--seo-border);
}

.seo-highlight-card,
.seo-panel,
.seo-card,
.seo-cta-box {
  background: linear-gradient(180deg, rgba(17, 28, 51, 0.92), rgba(10, 18, 34, 0.94));
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius-lg);
  box-shadow: var(--seo-shadow);
}

.seo-highlight-card {
  padding: 28px;
}

.seo-highlight-icon,
.seo-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.14);
  border: 1px solid rgba(59,130,246,0.18);
  color: #dcecff;
}

.seo-highlight-card h2,
.seo-panel h2,
.seo-section-head h2,
.seo-card h3,
.seo-faq-item h3,
.seo-cta-box h2 {
  margin: 16px 0 12px;
  letter-spacing: -0.03em;
}

.seo-highlight-card p,
.seo-panel p,
.seo-card p,
.seo-faq-item p,
.seo-section-head p,
.seo-cta-box p,
.seo-footer p,
.seo-link-list a span,
.seo-bullet-list li,
.seo-check-list li {
  color: var(--seo-text-soft);
  line-height: 1.7;
}

.seo-check-list,
.seo-bullet-list {
  margin: 18px 0 0;
  padding-left: 18px;
}

.seo-section {
  padding: 22px 0;
}

.seo-section-muted {
  padding-top: 10px;
}

.seo-section-head {
  max-width: 860px;
  margin-bottom: 22px;
}

.seo-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.seo-card {
  padding: 24px;
}

.seo-card h3 {
  font-size: 21px;
}

.seo-split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.seo-panel {
  padding: 26px;
}

.seo-link-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.seo-link-list a {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: 16px;
  text-decoration: none;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--seo-border);
  color: var(--seo-text);
}

.seo-link-list a strong {
  font-size: 16px;
}

.seo-faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.seo-faq-item {
  padding: 24px;
  border-radius: 22px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--seo-border);
}

.seo-section-cta {
  padding-top: 28px;
}

.seo-cta-box {
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.seo-footer {
  padding: 30px 0 48px;
}

.seo-footer-inner {
  display: flex;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-start;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  padding-top: 24px;
}

.seo-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

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

@media (max-width: 1100px) {
  .seo-hero-grid,
  .seo-card-grid,
  .seo-faq-grid,
  .seo-split-grid {
    grid-template-columns: 1fr 1fr;
  }

  .seo-highlight-card {
    grid-column: 1 / -1;
  }

  .seo-header-inner,
  .seo-cta-box,
  .seo-footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .seo-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .seo-container {
    width: min(var(--seo-container), calc(100% - 24px));
  }

  .seo-main {
    padding-top: 18px;
  }

  .seo-hero h1 {
    font-size: 36px;
  }

  .seo-hero-grid,
  .seo-card-grid,
  .seo-faq-grid,
  .seo-split-grid {
    grid-template-columns: 1fr;
  }

  .seo-highlight-card,
  .seo-card,
  .seo-panel,
  .seo-faq-item,
  .seo-cta-box {
    padding: 22px;
  }
}