.seo-site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 78px;
  padding: 0 4vw;
  background: rgba(244,245,241,.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.seo-site-header nav { display: flex; align-items: center; justify-content: center; gap: 30px; font-size: 14px; font-weight: 700; }
.seo-site-header .brand-dark { color: var(--pine); }
.seo-site-header nav a { position: relative; white-space: nowrap; }
.seo-site-header nav a::after { position: absolute; right: 0; bottom: -6px; left: 0; height: 1px; background: currentColor; content: ""; transform: scaleX(0); transition: transform .2s ease; }
.seo-site-header nav a:hover::after, .seo-site-header nav a[aria-current="page"]::after { transform: scaleX(1); }
.seo-header-cta { justify-self: end; }

.seo-article-page .article-meta a { text-decoration: underline; text-underline-offset: 3px; }
.seo-article-page .article-cover { margin: 0; }
.seo-article-page .article-cover img { aspect-ratio: 1.12 / 1; }
.seo-article-page .article-body { overflow-wrap: anywhere; }
.seo-article-page .article-body h2[id], .seo-article-page .article-body h3[id] { scroll-margin-top: 100px; }
.seo-article-page .article-body img { height: auto; }
.seo-article-page .article-body pre { max-width: 100%; padding: 18px; overflow-x: auto; background: #fff; border: 1px solid var(--line); }
.seo-article-page .article-body code, .seo-article-page .article-body kbd, .seo-article-page .article-body samp { font-family: var(--utility); }
.seo-article-page .article-body details { margin: 24px 0; padding: 18px 20px; background: white; border: 1px solid var(--line); }
.seo-article-page .article-body summary { color: var(--pine); cursor: pointer; font-weight: 700; }
.seo-article-page .article-body .article-table-scroll { max-width: 100%; overscroll-behavior-inline: contain; -webkit-overflow-scrolling: touch; }
.seo-article-page .article-body .article-table-scroll:focus,
.seo-article-page .article-body .article-table-scroll:focus-within { outline: 2px solid var(--sky); outline-offset: 2px; }
.article-toc .toc-h3 { padding-left: 14px; }
.article-toc a[aria-current="location"] { color: var(--pine); font-weight: 700; }

.seo-related { padding-top: 70px; padding-bottom: 100px; border-top: 1px solid var(--line); }
.seo-related > h2 { margin: 0 0 30px; color: var(--pine); font: 600 clamp(38px,4vw,54px)/1 var(--display); }
.seo-related-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.seo-related-grid article { min-width: 0; background: white; border-bottom: 2px solid var(--brass); }
.seo-related-image { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--pine-deep); }
.seo-related-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.seo-related-image:hover img { transform: scale(1.025); }
.seo-related-grid article > div { padding: 22px; }
.seo-related-grid article > div > span { color: var(--oxblood); font: 500 10px/1.4 var(--utility); letter-spacing: .08em; text-transform: uppercase; }
.seo-related-grid h3 { margin: 10px 0 8px; color: var(--pine); font: 600 27px/1.05 var(--display); }
.seo-related-grid p { display: -webkit-box; margin: 0; overflow: hidden; color: var(--muted); font-size: 13px; line-height: 1.6; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }

.seo-not-found { min-height: 58vh; padding-top: 110px; padding-bottom: 120px; }
.seo-not-found h1 { max-width: 760px; margin: 0; color: var(--pine); font: 600 clamp(52px,7vw,82px)/.95 var(--display); }
.seo-not-found > p:not(.eyebrow) { max-width: 620px; margin: 24px 0 32px; color: var(--muted); }

.seo-site-footer .footer-main { grid-template-columns: 1.6fr .7fr .7fr; }

@media (max-width: 1000px) {
  .seo-site-header { grid-template-columns: auto 1fr; gap: 24px; padding-block: 14px; }
  .seo-site-header nav { justify-content: flex-end; gap: 20px; }
  .seo-header-cta { display: none; }
}

@media (max-width: 700px) {
  .seo-site-header { position: relative; grid-template-columns: 1fr; gap: 13px; min-height: 0; padding: 16px; }
  .seo-site-header .brand { justify-self: center; }
  .seo-site-header nav { width: 100%; justify-content: flex-start; gap: 20px; padding: 5px 2px 2px; overflow-x: auto; scrollbar-width: none; }
  .seo-site-header nav::-webkit-scrollbar { display: none; }
  .seo-article-page .article-cover img { aspect-ratio: 1.35 / 1; }
  .seo-related { padding-top: 52px; padding-bottom: 70px; }
  .seo-related-grid { grid-template-columns: 1fr; }
  .seo-site-footer .footer-main { grid-template-columns: 1fr 1fr; }
  .seo-site-footer .footer-brand { grid-column: 1 / -1; }
}