/* SEO shell: visible until JSON app mounts; structured for crawlers */
.seo-content {
  position: relative;
  z-index: 5;
  width: 100%;
  max-width: 560px;
  margin: 40px auto;
  padding: 28px 24px;
  background: var(--panel-bg, #14171e);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  color: var(--text-main, #f0f2f5);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.seo-content header {
  margin-bottom: 1.25rem;
}

.seo-content h1 {
  font-size: 1.55rem;
  line-height: 1.25;
  margin-bottom: 0.45rem;
  letter-spacing: -0.02em;
}

.seo-content h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted, #6c7a9c);
  margin: 1.15rem 0 0.55rem;
  border-left: 2px solid var(--accent-color, #ff007f);
  padding-left: 8px;
}

.seo-content section {
  margin-bottom: 0.35rem;
}

.seo-content p {
  color: var(--text-muted, #6c7a9c);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 0.65rem;
}

.seo-content ul {
  margin: 0 0 0.75rem;
  padding-left: 1.15rem;
  color: var(--text-muted, #6c7a9c);
  font-size: 0.92rem;
  line-height: 1.5;
}

.seo-content li {
  margin-bottom: 0.35rem;
}

.seo-content code {
  font-size: 0.85em;
  color: var(--text-main, #f0f2f5);
}

.seo-content nav {
  margin-top: 1.35rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.seo-content a {
  color: var(--accent-color, #ff007f);
  text-decoration: none;
  font-size: 0.9rem;
}

.seo-content a:hover {
  text-decoration: underline;
}

#appWorkspace {
  display: none;
}

html.app-ready .seo-content {
  display: none;
}

html.app-ready #appWorkspace {
  display: block;
}

html.app-error .seo-content {
  display: block;
}