:root {
  --seo-navy: #0f2343;
  --seo-cyan: #117ea6;
  --seo-cyan-soft: #eef8fb;
  --seo-border: rgba(15, 35, 67, 0.12);
  --seo-border-strong: rgba(17, 126, 166, 0.24);
  --seo-text: #142033;
  --seo-muted: #46586d;
  --seo-panel: rgba(255, 255, 255, 0.86);
  --seo-panel-strong: rgba(255, 255, 255, 0.94);
  --seo-shadow: 0 28px 84px -54px rgba(15, 35, 67, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--seo-text);
  font-family: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.seo-snapshot,
.seo-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(15, 35, 67, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(17, 126, 166, 0.14), transparent 28%),
    linear-gradient(180deg, #f7f9fc 0%, #ffffff 100%);
}

.seo-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 72px;
}

.seo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border: 1px solid var(--seo-border-strong);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(17, 126, 166, 0.08), rgba(255, 255, 255, 0.94));
  box-shadow: var(--seo-shadow);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.seo-brand:hover {
  transform: translateY(-1px);
  border-color: rgba(17, 126, 166, 0.32);
  box-shadow: 0 32px 84px -54px rgba(15, 35, 67, 0.5);
}

.seo-brand img {
  display: block;
  height: 34px;
  width: auto;
}

.seo-nav,
.seo-footer-links,
.seo-inline-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

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

.seo-nav a:hover,
.seo-footer-links a:hover,
.seo-inline-links a:hover {
  color: var(--seo-navy);
}

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

.seo-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--seo-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--seo-navy);
  cursor: pointer;
}

.seo-menu-toggle svg,
.seo-mobile-close svg {
  width: 20px;
  height: 20px;
}

.seo-account-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 6px 10px;
  border: 1px solid var(--seo-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--seo-text);
}

.seo-account-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--seo-border-strong);
  border-radius: 999px;
  background: var(--seo-cyan-soft);
  color: var(--seo-navy);
  font-size: 11px;
  font-weight: 700;
}

.seo-account-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.seo-account-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--seo-text);
}

.seo-account-plan {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--seo-muted);
}

.seo-mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
}

.seo-mobile-drawer[data-open="true"] {
  display: block;
}

.seo-mobile-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 35, 67, 0.28);
  backdrop-filter: blur(2px);
}

.seo-mobile-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(100%, 24rem);
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  border-left: 1px solid var(--seo-border);
  background: #ffffff;
  box-shadow: 0 32px 72px -32px rgba(15, 35, 67, 0.45);
  transform: translateX(100%);
  transition: transform 300ms ease;
}

.seo-mobile-drawer[data-open="true"] .seo-mobile-panel {
  transform: translateX(0);
}

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

.seo-mobile-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--seo-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--seo-navy);
  cursor: pointer;
}

.seo-mobile-account {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--seo-border);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.94);
}

.seo-mobile-nav {
  display: flex;
  flex-direction: column;
  margin-top: 24px;
}

.seo-mobile-nav a {
  padding: 16px 0;
  border-bottom: 1px solid var(--seo-border);
  color: var(--seo-text);
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
}

.seo-mobile-cta {
  margin-top: auto;
  padding-top: 24px;
}

.seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

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

.seo-button:active {
  transform: scale(0.97);
}

.seo-button-primary {
  background: var(--seo-navy);
  color: #ffffff;
  box-shadow: 0 18px 40px -24px rgba(15, 35, 67, 0.7);
}

.seo-button-primary:hover {
  background: var(--seo-cyan);
}

.seo-button-secondary {
  border-color: var(--seo-border-strong);
  background: var(--seo-panel-strong);
  color: var(--seo-navy);
}

.seo-button-secondary:hover {
  background: var(--seo-cyan-soft);
}

.seo-hero {
  padding: 72px 0 42px;
}

.seo-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  color: var(--seo-muted);
  font-size: 14px;
}

.seo-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--seo-border-strong);
  background: rgba(255, 255, 255, 0.8);
  color: var(--seo-navy);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.seo-title {
  max-width: 880px;
  margin: 18px 0 0;
  color: var(--seo-navy);
  font-size: clamp(2.5rem, 5vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.seo-description,
.seo-intro {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--seo-muted);
  font-size: 1.08rem;
  line-height: 1.72;
}

.seo-meta {
  margin-top: 18px;
  color: var(--seo-muted);
  font-size: 0.95rem;
}

.seo-article-meta,
.seo-pill-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: var(--seo-muted);
  font-size: 0.92rem;
}

.seo-pill-row {
  margin-top: 14px;
}

.seo-pill,
.seo-card-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--seo-border-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
}

.seo-card-meta {
  padding: 6px 10px;
  font-size: 0.8rem;
  color: var(--seo-muted);
}

.seo-highlight-list,
.seo-checklist {
  padding-left: 20px;
  color: var(--seo-muted);
  line-height: 1.72;
}

.seo-highlight-list {
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
}

.seo-checklist {
  margin: 0;
}

.seo-section {
  margin-top: 28px;
  padding: 28px;
  border: 1px solid var(--seo-border);
  border-radius: 28px;
  background: var(--seo-panel);
  box-shadow: var(--seo-shadow);
  backdrop-filter: blur(12px);
}

.seo-section h2,
.seo-section h3 {
  color: var(--seo-navy);
  letter-spacing: -0.03em;
}

.seo-section h2 {
  margin: 0 0 14px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.seo-section h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.seo-grid {
  display: grid;
  gap: 16px;
}

.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(--seo-border);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.88);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.seo-card:hover {
  transform: translateY(-2px);
  border-color: rgba(17, 126, 166, 0.22);
  box-shadow: 0 18px 40px -24px rgba(15, 35, 67, 0.24);
}

.seo-card p,
.seo-section p,
.seo-section li {
  color: var(--seo-muted);
  line-height: 1.72;
}

.seo-stat-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.seo-stat {
  padding: 20px;
  border: 1px solid var(--seo-border);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
}

.seo-stat strong {
  display: block;
  color: var(--seo-navy);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.05em;
}

.seo-stat span {
  display: block;
  margin-top: 8px;
  color: var(--seo-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.seo-resource-stack {
  display: grid;
  gap: 16px;
}

.seo-note,
.seo-quote {
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(15, 35, 67, 0.05);
}

.seo-quote {
  border-left: 4px solid rgba(15, 35, 67, 0.18);
  font-size: 1.02rem;
  line-height: 1.78;
}

.seo-note strong,
.seo-quote strong {
  color: var(--seo-navy);
}

.seo-kicker {
  margin-bottom: 10px;
  color: var(--seo-cyan);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.seo-table-wrap {
  overflow-x: auto;
}

.seo-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.seo-table th,
.seo-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--seo-border);
  text-align: left;
  vertical-align: top;
}

.seo-table th {
  color: var(--seo-navy);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.seo-callout {
  margin-top: 16px;
  padding: 18px 20px;
  border-left: 4px solid var(--seo-cyan);
  border-radius: 20px;
  background: rgba(17, 126, 166, 0.07);
}

.seo-callout strong {
  color: var(--seo-navy);
}

.seo-source-list {
  padding-left: 20px;
  margin: 18px 0 0;
}

.seo-source-list a {
  color: var(--seo-cyan);
}

.seo-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--seo-border);
  color: var(--seo-muted);
  font-size: 0.92rem;
}

.seo-reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.seo-reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .seo-grid-2,
  .seo-grid-3,
  .seo-stat-grid {
    grid-template-columns: 1fr;
  }

  .seo-shell {
    padding-bottom: 48px;
  }
}

@media (max-width: 640px) {
  .seo-hero {
    padding-top: 42px;
  }

  .seo-section {
    padding: 22px;
    border-radius: 22px;
  }

  .seo-title {
    font-size: 2.35rem;
    line-height: 1.02;
  }
}

@media (max-width: 768px) {
  .seo-header {
    flex-wrap: nowrap;
  }

  .seo-nav,
  .seo-actions {
    display: none;
  }

  .seo-menu-toggle {
    display: inline-flex;
  }
}