:root {
  color-scheme: dark;
  --bg: #05070c;
  --bg-soft: #111827;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.1);
  --text: #f8fafc;
  --text-soft: rgba(248, 250, 252, 0.76);
  --text-muted: rgba(248, 250, 252, 0.58);
  --accent: #f97316;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(249, 115, 22, 0.16), transparent 28%),
    linear-gradient(to bottom, #111827, #05070c);
  color: var(--text);
  font-family:
    ui-sans-serif,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

a {
  color: #fdba74;
  text-decoration: none;
}

a:hover {
  color: #ffedd5;
}

.seo-shell {
  margin: 0 auto;
  max-width: 1120px;
  padding: 32px 24px 72px;
}

.seo-header {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
}

.seo-brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  color: var(--text);
  font-weight: 700;
}

.seo-brand-logo {
  width: auto;
  height: 40px;
}

.seo-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  justify-content: flex-end;
  font-size: 14px;
}

.seo-hero {
  margin-bottom: 28px;
  padding: 28px;
  border: 1px solid var(--card-border);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.seo-eyebrow,
.seo-meta {
  margin: 0 0 14px;
  color: #fb923c;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.seo-hero h1,
.seo-section h1,
.seo-section h2,
.seo-section h3,
.seo-card h3 {
  margin: 0;
}

.seo-hero h1 {
  max-width: 900px;
  font-size: clamp(2rem, 6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.seo-lead {
  max-width: 860px;
  margin: 20px 0 0;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.75;
}

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

.seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 700;
}

.seo-button-primary {
  border-color: rgba(249, 115, 22, 0.45);
  background: linear-gradient(135deg, #f97316, #fb923c);
  color: #fff;
}

.seo-section {
  margin-top: 28px;
}

.seo-section > h1,
.seo-section > h2 {
  margin-bottom: 14px;
  font-size: clamp(1.6rem, 4vw, 2.45rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.seo-section > p,
.seo-card > p,
.seo-card li,
.seo-section li {
  color: var(--text-soft);
  line-height: 1.75;
}

.seo-grid {
  display: grid;
  gap: 18px;
}

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

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

.seo-card {
  padding: 22px;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: var(--card);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.seo-card-link {
  color: inherit;
}

.seo-card-link:hover {
  border-color: rgba(249, 115, 22, 0.32);
  background: linear-gradient(180deg, rgba(249, 115, 22, 0.08), rgba(255, 255, 255, 0.03));
}

.seo-card h3 {
  font-size: 1.25rem;
  line-height: 1.2;
}

.seo-list {
  margin: 0;
  padding-left: 20px;
}

.seo-list li + li {
  margin-top: 10px;
}

.seo-faq {
  display: grid;
  gap: 18px;
}

.seo-footer {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .seo-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .seo-grid-2,
  .seo-grid-3 {
    grid-template-columns: 1fr;
  }
}