:root {
  --seo-bg: #071018;
  --seo-bg-soft: #0b1117;
  --seo-panel: rgba(14, 20, 27, 0.92);
  --seo-panel-strong: rgba(18, 24, 32, 0.98);
  --seo-line: rgba(255, 255, 255, 0.08);
  --seo-line-strong: rgba(17, 216, 186, 0.26);
  --seo-text: #e6edf3;
  --seo-muted: #95a2af;
  --seo-muted-strong: #b7c2cc;
  --seo-accent: #11d8ba;
  --seo-accent-strong: #0db9a1;
  --seo-accent-glow: rgba(17, 216, 186, 0.18);
  --seo-danger: #ff8f8f;
  --seo-shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
  --seo-radius-xl: 30px;
  --seo-radius-lg: 22px;
  --seo-radius-md: 18px;
  --seo-radius-sm: 14px;
  --seo-max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.seo-body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--seo-text);
  background:
    radial-gradient(circle at top left, rgba(17, 216, 186, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(17, 216, 186, 0.08), transparent 24%),
    linear-gradient(180deg, var(--seo-bg) 0%, var(--seo-bg-soft) 38%, #0b0f14 100%);
}

a {
  color: var(--seo-accent);
  text-decoration: none;
}

a:hover {
  color: #55ead2;
}

img {
  max-width: 100%;
  display: block;
}

.seo-shell {
  width: 100%;
}

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

.seo-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(7, 16, 24, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.seo-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.seo-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.seo-brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(17, 216, 186, 0.2), rgba(13, 185, 161, 0.08));
  border: 1px solid rgba(17, 216, 186, 0.24);
  display: grid;
  place-items: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.seo-brand-mark img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  filter: drop-shadow(0 6px 12px rgba(17, 216, 186, 0.16));
}

.seo-brand-copy {
  min-width: 0;
}

.seo-brand-copy strong {
  display: block;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.seo-brand-copy small {
  display: block;
  margin-top: 3px;
  color: var(--seo-muted);
  font-size: 12px;
}

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

.seo-nav-link,
.seo-nav-cta,
.seo-button,
.seo-button-secondary {
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.seo-nav-link {
  color: var(--seo-muted-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
}

.seo-nav-link:hover {
  color: #f1f7fb;
  transform: translateY(-1px);
  border-color: rgba(17, 216, 186, 0.24);
}

.seo-nav-cta,
.seo-button {
  color: #041311;
  background: linear-gradient(135deg, var(--seo-accent), var(--seo-accent-strong));
  box-shadow: 0 16px 32px var(--seo-accent-glow);
}

.seo-nav-cta:hover,
.seo-button:hover {
  color: #041311;
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(17, 216, 186, 0.24);
}

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

.seo-button-secondary:hover {
  color: #ffffff;
  transform: translateY(-1px);
  border-color: var(--seo-line-strong);
}

.seo-hero {
  padding: 56px 0 34px;
}

.seo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.85fr);
  gap: 24px;
  align-items: stretch;
}

.seo-card,
.seo-hero-copy,
.seo-hero-panel,
.seo-article-card,
.seo-aside-card,
.seo-related-card,
.seo-footer {
  background: linear-gradient(180deg, rgba(21, 28, 37, 0.94), rgba(12, 17, 23, 0.98));
  border: 1px solid var(--seo-line);
  box-shadow: var(--seo-shadow);
}

.seo-hero-copy,
.seo-hero-panel {
  border-radius: var(--seo-radius-xl);
  padding: 32px;
}

.seo-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(17, 216, 186, 0.1);
  border: 1px solid rgba(17, 216, 186, 0.18);
  color: #8ef0df;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.seo-hero-copy h1 {
  margin: 18px 0 16px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.seo-lead {
  margin: 0;
  font-size: 18px;
  line-height: 1.7;
  color: var(--seo-muted-strong);
}

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

.seo-microcopy {
  margin-top: 18px;
  color: var(--seo-muted);
  font-size: 13px;
  line-height: 1.6;
}

.seo-hero-panel h2 {
  margin: 0 0 18px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.seo-stat-grid,
.seo-feature-grid,
.seo-related-grid {
  display: grid;
  gap: 14px;
}

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

.seo-stat-card,
.seo-feature-card,
.seo-related-card {
  border-radius: var(--seo-radius-md);
  padding: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.seo-stat-card strong {
  display: block;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.seo-stat-card span,
.seo-feature-card p,
.seo-related-card p,
.seo-related-card span {
  display: block;
  margin-top: 8px;
  color: var(--seo-muted-strong);
  line-height: 1.6;
}

.seo-main {
  padding-bottom: 60px;
}

.seo-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}

.seo-article-card {
  border-radius: var(--seo-radius-xl);
  padding: 34px;
}

.seo-article-card h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -0.03em;
}

.seo-article-card h3 {
  margin: 28px 0 12px;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.seo-article-card p,
.seo-article-card li {
  color: var(--seo-muted-strong);
  font-size: 17px;
  line-height: 1.78;
}

.seo-article-card p {
  margin: 0 0 16px;
}

.seo-article-card ul,
.seo-article-card ol {
  margin: 0 0 20px;
  padding-left: 22px;
}

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

.seo-section + .seo-section {
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.seo-quote {
  margin: 22px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--seo-accent);
  border-radius: 0 18px 18px 0;
  background: rgba(17, 216, 186, 0.08);
  color: #dffbf6;
}

.seo-feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 22px 0;
}

.seo-feature-card strong {
  display: block;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.seo-inline-cta {
  margin-top: 26px;
  padding: 24px;
  border-radius: var(--seo-radius-lg);
  background: linear-gradient(135deg, rgba(17, 216, 186, 0.12), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(17, 216, 186, 0.2);
}

.seo-inline-cta h3,
.seo-inline-cta p {
  margin-top: 0;
}

.seo-inline-cta .seo-hero-actions {
  margin-top: 16px;
}

.seo-aside {
  position: sticky;
  top: 104px;
}

.seo-aside-card {
  border-radius: var(--seo-radius-xl);
  padding: 24px;
}

.seo-aside-card + .seo-aside-card {
  margin-top: 18px;
}

.seo-aside-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.seo-aside-card p,
.seo-aside-card li {
  color: var(--seo-muted-strong);
  line-height: 1.7;
  font-size: 15px;
}

.seo-aside-card ul {
  margin: 0;
  padding-left: 20px;
}

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

.seo-related {
  margin-top: 34px;
}

.seo-related h2 {
  margin: 0 0 16px;
  font-size: 28px;
}

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

.seo-related-card {
  display: block;
  border-radius: var(--seo-radius-lg);
  min-height: 100%;
}

.seo-related-card strong {
  display: block;
  font-size: 18px;
  color: #f3fbf9;
}

.seo-related-card span {
  color: var(--seo-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.seo-faq details {
  border-radius: var(--seo-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  padding: 16px 18px;
}

.seo-faq details + details {
  margin-top: 12px;
}

.seo-faq summary {
  cursor: pointer;
  font-weight: 700;
  color: #f2f8fb;
}

.seo-faq details p {
  margin: 14px 0 0;
}

.seo-footer-wrap {
  padding: 0 0 40px;
}

.seo-footer {
  border-radius: var(--seo-radius-xl);
  padding: 28px 30px;
}

.seo-footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.seo-footer-copy h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

.seo-footer-copy p {
  margin: 0;
  color: var(--seo-muted-strong);
  line-height: 1.7;
}

.seo-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.seo-footer-note {
  margin-top: 16px;
  color: var(--seo-muted);
  font-size: 13px;
  line-height: 1.6;
}

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

  .seo-aside {
    position: static;
  }

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

@media (max-width: 760px) {
  .seo-topbar-inner,
  .seo-footer-top {
    flex-direction: column;
    align-items: stretch;
  }

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

  .seo-hero {
    padding-top: 34px;
  }

  .seo-hero-copy,
  .seo-hero-panel,
  .seo-article-card,
  .seo-aside-card,
  .seo-footer {
    padding: 24px;
  }

  .seo-stat-grid,
  .seo-feature-grid,
  .seo-related-grid {
    grid-template-columns: 1fr;
  }

  .seo-article-card p,
  .seo-article-card li {
    font-size: 16px;
  }
}

@media (max-width: 520px) {
  .seo-container {
    width: min(calc(100% - 20px), var(--seo-max));
  }

  .seo-brand {
    align-items: flex-start;
  }

  .seo-nav-link,
  .seo-nav-cta,
  .seo-button,
  .seo-button-secondary {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .seo-nav-link,
  .seo-nav-cta,
  .seo-button,
  .seo-button-secondary {
    transition: none;
  }
}