:root {
  --seo-bg: #0f1117;
  --seo-surface: #171b24;
  --seo-surface-strong: #1e2430;
  --seo-border: rgba(255, 255, 255, 0.08);
  --seo-text: #f3f6fb;
  --seo-muted: #aab5cb;
  --seo-accent: #7c5cff;
  --seo-accent-soft: rgba(124, 92, 255, 0.14);
  --seo-secondary: #20c6b7;
  --seo-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(124, 92, 255, 0.28), transparent 28%),
    radial-gradient(circle at top right, rgba(32, 198, 183, 0.16), transparent 26%),
    linear-gradient(180deg, #0c0f15 0%, #111621 100%);
  color: var(--seo-text);
  font-family: "Segoe UI", "Inter", system-ui, sans-serif;
  line-height: 1.7;
}

body > main {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

body > main > nav {
  margin: 0 0 22px;
  color: var(--seo-muted);
  font-size: 0.92rem;
}

body > main > h1 {
  margin: 0 0 18px;
}

body > main > p,
body > main > article > p:first-child {
  font-size: 1.02rem;
}

body > main > article {
  margin-top: 24px;
}

a {
  color: #8cb7ff;
  text-decoration: none;
}

a:hover {
  color: #bed2ff;
}

.seo-shell {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.seo-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0 28px;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--seo-text);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.seo-brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--seo-accent), var(--seo-secondary));
  box-shadow: 0 0 18px rgba(124, 92, 255, 0.35);
}

.seo-hero {
  padding: 34px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.2), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--seo-border);
  box-shadow: var(--seo-shadow);
}

.seo-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  margin-bottom: 18px;
  background: var(--seo-accent-soft);
  color: #d5cbff;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.seo-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--seo-secondary);
}

.seo-hero h1,
main h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.1;
}

.seo-lead {
  max-width: 760px;
  margin: 0;
  color: var(--seo-muted);
  font-size: 1.06rem;
}

.seo-breadcrumb {
  margin: 0 0 22px;
  color: var(--seo-muted);
  font-size: 0.92rem;
}

.seo-breadcrumb a {
  color: var(--seo-muted);
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  margin-top: 28px;
}

.seo-main {
  grid-column: span 8;
}

.seo-side {
  grid-column: span 4;
}

.seo-card,
.seo-panel,
main > article,
.seo-main > section,
.seo-side > section,
.seo-faq,
.seo-links {
  padding: 26px;
  background: var(--seo-surface);
  border: 1px solid var(--seo-border);
  box-shadow: var(--seo-shadow);
}

.seo-main > section + section,
.seo-side > section + section {
  margin-top: 22px;
}

.seo-intro {
  font-size: 1.06rem;
}

.seo-main section p + p,
.seo-main section ul + p,
.seo-main section ol + p {
  margin-top: 14px;
}

.seo-section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: #d6ccff;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.seo-section-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--seo-secondary);
}

.seo-highlight {
  padding: 16px 18px;
  margin: 18px 0 0;
  background: rgba(124, 92, 255, 0.08);
  border: 1px solid rgba(124, 92, 255, 0.24);
}

.seo-checklist,
.seo-faq-list {
  display: grid;
  gap: 16px;
}

.seo-faq-item h3,
.seo-checklist h3 {
  margin-top: 0;
}

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

.seo-links-inline a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--seo-border);
  color: var(--seo-text);
}

.seo-links-inline a:hover {
  border-color: rgba(124, 92, 255, 0.42);
  background: rgba(124, 92, 255, 0.1);
}

.seo-estimate-cta {
  margin-top: 24px;
  padding: 22px 24px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.16), rgba(32, 198, 183, 0.08));
  border: 1px solid rgba(124, 92, 255, 0.24);
  box-shadow: var(--seo-shadow);
}

.seo-estimate-cta p {
  margin: 0;
  color: var(--seo-text);
  font-size: 1rem;
}

.seo-estimate-cta a {
  color: #ffffff;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.seo-estimate-cta a:hover {
  color: #d9d1ff;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.36rem;
  line-height: 1.2;
}

h3 {
  margin: 18px 0 10px;
  font-size: 1.05rem;
  line-height: 1.35;
}

p,
li {
  color: var(--seo-muted);
}

ul,
ol {
  margin: 0;
  padding-left: 20px;
}

.seo-list {
  display: grid;
  gap: 12px;
}

.seo-list a {
  display: block;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--seo-border);
  color: var(--seo-text);
}

.seo-list a:hover {
  border-color: rgba(124, 92, 255, 0.42);
  background: rgba(124, 92, 255, 0.1);
}

.seo-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.seo-pill {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--seo-border);
  color: var(--seo-text);
  font-size: 0.92rem;
}

.seo-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  margin-top: 16px;
  background: linear-gradient(135deg, var(--seo-accent), #6e97ff);
  color: #fff;
  font-weight: 700;
}

.seo-cta:hover {
  color: #fff;
  filter: brightness(1.06);
}

.seo-note {
  color: var(--seo-muted);
  font-size: 0.92rem;
}

.seo-footer {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--seo-border);
  color: var(--seo-muted);
  font-size: 0.92rem;
}

@media (max-width: 920px) {
  .seo-grid {
    grid-template-columns: 1fr;
  }

  .seo-main,
  .seo-side {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .seo-shell {
    width: min(100% - 20px, 1040px);
    padding-top: 20px;
  }

  .seo-topbar {
    padding-bottom: 20px;
  }

  .seo-hero,
  .seo-card,
  .seo-panel,
  main > article,
  .seo-main > section,
  .seo-side > section,
  .seo-faq,
  .seo-links {
    padding: 20px;
  }
}