:root {
  --seo-bg: #efe7dc;
  --seo-bg-soft: rgba(255, 255, 255, 0.62);
  --seo-bg-strong: rgba(255, 255, 255, 0.84);
  --seo-text: #171717;
  --seo-text-soft: #57534e;
  --seo-muted: #78716c;
  --seo-border: rgba(23, 23, 23, 0.08);
  --seo-shadow: rgba(23, 23, 23, 0.08);
  --seo-accent: #0f766e;
  --seo-accent-strong: #115e59;
  --seo-pill: rgba(15, 118, 110, 0.09);
  --seo-gradient: radial-gradient(circle at top left, rgba(14, 165, 233, 0.12), transparent 36%), radial-gradient(circle at top right, rgba(16, 185, 129, 0.12), transparent 24%), linear-gradient(180deg, #f8f4ee 0%, #efe7dc 100%);
  --seo-font-serif: 'DM Serif Display', Georgia, serif;
  --seo-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme='dark'] {
  --seo-bg: #131517;
  --seo-bg-soft: rgba(23, 27, 30, 0.68);
  --seo-bg-strong: rgba(26, 31, 35, 0.9);
  --seo-text: #f5f3ef;
  --seo-text-soft: #d6d0c7;
  --seo-muted: #9b9488;
  --seo-border: rgba(255, 255, 255, 0.09);
  --seo-shadow: rgba(0, 0, 0, 0.26);
  --seo-accent: #34d399;
  --seo-accent-strong: #10b981;
  --seo-pill: rgba(52, 211, 153, 0.12);
  --seo-gradient: radial-gradient(circle at top left, rgba(14, 165, 233, 0.14), transparent 32%), radial-gradient(circle at top right, rgba(16, 185, 129, 0.14), transparent 24%), linear-gradient(180deg, #171a1d 0%, #131517 100%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--seo-gradient);
  color: var(--seo-text);
  font-family: var(--seo-font-sans);
}

a {
  color: inherit;
  text-decoration: none;
}

.seo-shell {
  min-height: 100vh;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 2rem;
  padding-top: calc(1.2rem + env(safe-area-inset-top, 0px));
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--seo-font-serif);
  font-size: 1.08rem;
  max-width: 17rem;
}

.site-brand span {
  line-height: 1.05;
}

.site-brand img {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 0 1px var(--seo-border), 0 8px 20px var(--seo-shadow);
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav-link,
.site-theme-toggle {
  border: 1px solid var(--seo-border);
  background: var(--seo-bg-soft);
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--seo-text-soft);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-nav-link:hover,
.site-theme-toggle:hover {
  color: var(--seo-text);
  transform: translateY(-1px);
}

.site-theme-toggle {
  cursor: pointer;
}

.page-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}

.breadcrumb-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0.3rem 0 1.1rem;
  color: var(--seo-muted);
  font-size: 0.82rem;
  flex-wrap: wrap;
}

.hero-card,
.content-card {
  border: 1px solid var(--seo-border);
  background: var(--seo-bg-soft);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  box-shadow: 0 14px 48px var(--seo-shadow);
}

.hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 2rem;
  padding: 2rem;
  border-radius: 32px;
  margin-bottom: 1.3rem;
}

.hero-card--category {
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--seo-accent-strong);
}

.hero-copy h1,
.section-head h2,
.content-card h2 {
  margin: 0;
  font-family: var(--seo-font-serif);
  font-weight: 400;
  line-height: 1.1;
}

.hero-copy h1 {
  font-size: clamp(2.3rem, 5vw, 4.5rem);
  margin-bottom: 0.9rem;
}

.hero-lead,
.content-card p,
.faq-item-public p,
.related-card p,
.empty-copy,
.bullet-list li {
  color: var(--seo-text-soft);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.primary-cta,
.secondary-cta,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
}

.primary-cta,
.secondary-cta {
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
}

.primary-cta {
  background: linear-gradient(135deg, var(--seo-accent), var(--seo-accent-strong));
  color: #fff;
}

.secondary-cta {
  border: 1px solid var(--seo-border);
  background: var(--seo-bg-strong);
}

.hero-aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.hero-logo,
.info-card,
.related-card,
.faq-item-public {
  border: 1px solid var(--seo-border);
  background: var(--seo-bg-strong);
  border-radius: 24px;
}

.hero-logo {
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-logo img {
  width: min(220px, 100%);
  max-height: 180px;
  object-fit: contain;
}

.hero-logo span {
  font-size: 5rem;
}

.info-card {
  padding: 1rem 1.1rem;
}

.info-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--seo-muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pill-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  background: var(--seo-pill);
  color: var(--seo-accent-strong);
  font-size: 0.8rem;
  font-weight: 600;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
  gap: 1.2rem;
  margin-bottom: 1.2rem;
}

.content-card {
  padding: 1.5rem;
  border-radius: 28px;
  margin-bottom: 1.2rem;
}

.content-card h2 {
  margin-bottom: 0.95rem;
  font-size: clamp(1.45rem, 2.3vw, 2rem);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.text-link {
  color: var(--seo-accent-strong);
  font-weight: 600;
}

.bullet-list {
  margin: 0;
  padding-left: 1.15rem;
}

.bullet-list li + li {
  margin-top: 0.5rem;
}

.faq-public-list,
.related-grid {
  display: grid;
  gap: 0.85rem;
}

.faq-item-public {
  padding: 1rem 1.05rem;
}

.faq-item-public summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-item-public summary::-webkit-details-marker {
  display: none;
}

.faq-item-public p {
  margin: 0.8rem 0 0;
}

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

.related-card {
  padding: 1rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.related-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.28);
}

.related-card__label {
  display: inline-flex;
  margin-bottom: 0.65rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--seo-muted);
}

.related-card strong {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 1rem;
}

.site-disclaimer {
  margin-bottom: 1.2rem;
  padding: 1.35rem 1.45rem;
  border: 1px solid var(--seo-border);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(14, 165, 233, 0.04)),
    var(--seo-bg-soft);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 14px 48px var(--seo-shadow);
}

.site-disclaimer__eyebrow {
  margin: 0 0 0.45rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--seo-accent-strong);
}

.site-disclaimer h2 {
  margin: 0 0 0.7rem;
  font-family: var(--seo-font-serif);
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  font-weight: 400;
  line-height: 1.1;
}

.site-disclaimer p {
  margin: 0;
  color: var(--seo-text-soft);
  line-height: 1.7;
}

.site-disclaimer p + p {
  margin-top: 0.7rem;
}

.site-disclaimer a {
  color: var(--seo-accent-strong);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 2rem 2rem;
  color: var(--seo-muted);
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 960px) {
  .hero-card,
  .content-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .page-main,
  .site-footer {
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }

  .site-nav {
    display: grid;
    align-items: stretch;
    gap: 0.75rem;
    padding: 1rem 1.1rem 0;
    padding-top: calc(1rem + env(safe-area-inset-top, 0px));
  }

  .site-brand {
    max-width: 13rem;
    font-size: 0.98rem;
  }

  .site-nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
    justify-content: stretch;
  }

  .site-nav-link,
  .site-theme-toggle {
    width: 100%;
    min-height: 3.05rem;
    justify-content: center;
    padding: 0.78rem 0.9rem;
    font-size: 0.9rem;
  }

  .breadcrumb-row {
    margin: 0.15rem 0 0.95rem;
    gap: 0.35rem;
    font-size: 0.75rem;
  }

  .hero-card,
  .content-card,
  .site-disclaimer {
    padding: 1.15rem;
    border-radius: 24px;
  }

  .hero-copy h1 {
    font-size: clamp(2rem, 12vw, 3.35rem);
    line-height: 1.02;
    text-wrap: balance;
  }

  .hero-lead,
  .content-card p,
  .faq-item-public p,
  .related-card p,
  .empty-copy,
  .bullet-list li,
  .site-disclaimer p {
    font-size: 0.98rem;
    line-height: 1.65;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .primary-cta,
  .secondary-cta {
    width: 100%;
  }

  .hero-logo {
    min-height: 180px;
  }

  .hero-logo img {
    width: min(170px, 80%);
    max-height: 140px;
  }

  .info-card {
    padding: 0.95rem 1rem;
  }

  .tag-list {
    gap: 0.45rem;
  }

  .pill-tag {
    font-size: 0.77rem;
    padding: 0.42rem 0.72rem;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .section-head,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer {
    gap: 0.65rem;
    padding-top: 1rem;
  }
}

@media (max-width: 420px) {
  .site-nav {
    padding-left: 0.9rem;
    padding-right: 0.9rem;
  }

  .site-brand {
    max-width: 11.5rem;
    font-size: 0.92rem;
  }

  .page-main,
  .site-footer {
    padding-left: 0.9rem;
    padding-right: 0.9rem;
  }

  .site-disclaimer h2 {
    font-size: 1.32rem;
  }
}