/* ── SEO / marketing content (homepage intro, FAQ, footer) ──
   Rendered as a dismissible overlay, like the app's other modals, so it never
   displaces the sidebar/main layout. Markup stays in raw HTML for crawlers;
   JS (in index.html) only toggles the "open" class based on visit/dismiss state. */

#seo-intro-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1030;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

#seo-intro-overlay.open {
  display: flex;
}

#seo-intro {
  position: relative;
  background: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  width: 720px;
  max-width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px 32px 24px;
  color: var(--text);
}

#seo-intro-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--modal-close);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  border-radius: 6px;
}

#seo-intro-close:hover {
  background: var(--sidebar-item-hover);
  color: var(--modal-close-hover);
}

.seo-intro-inner h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--text);
}

.seo-lede {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 20px;
  max-width: 68ch;
}

.seo-feature-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.seo-feature-list li {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-secondary);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
}

.seo-feature-list li strong {
  color: var(--text);
}

.seo-cta {
  margin-bottom: 32px;
}

.seo-cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: 8px;
}

.seo-cta-btn:hover {
  background: var(--accent-hover);
}

#faq {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-bottom: 24px;
}

#faq h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 16px;
}

.faq-item {
  margin-bottom: 16px;
}

.faq-item h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 4px;
}

.faq-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  max-width: 68ch;
}

#seo-footer {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

#seo-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 10px;
}

#seo-footer nav a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
}

#seo-footer nav a:hover {
  color: var(--text);
  text-decoration: underline;
}

.seo-footer-note {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
}

/* ── Standalone content pages (openapi-viewer.html, compare-openapi-specs.html, vs/*.html) ── */

.content-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  color: var(--text);
}

.content-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.content-nav .home-link {
  font-family: 'SFMono-Regular', 'JetBrains Mono', 'Fira Code', 'Menlo', monospace;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
}

.content-nav .home-link span {
  color: var(--sidebar-accent);
}

.content-page h1 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 16px;
}

.content-page h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 32px 0 12px;
}

.content-page p,
.content-page li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 68ch;
}

.content-page ol,
.content-page ul {
  padding-left: 20px;
}

.content-page a {
  color: var(--sidebar-accent);
}

.content-cta {
  margin-top: 32px;
}

.content-cta a {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: 8px;
}

.content-cta a:hover {
  background: var(--accent-hover);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 8px;
}

.compare-table th,
.compare-table td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  font-size: 13px;
  text-align: left;
  color: var(--text-secondary);
  vertical-align: top;
}

.compare-table th {
  color: var(--text);
  background: var(--card-bg);
}