/**
 * Shared SEO content blocks — breadcrumbs, intro, FAQ, how-to, related links.
 * Matches M3U Edit design tokens (works with light/dark via CSS variables).
 */

.seo-breadcrumb {
  padding: 0.75rem 0 0;
  font-size: 0.8125rem;
}

.seo-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.seo-breadcrumb__item a {
  color: var(--color-primary, #6366f1);
  text-decoration: none;
}

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

.seo-breadcrumb__sep {
  margin: 0 0.2rem;
  color: var(--color-text-muted, #94a3b8);
}

.seo-block {
  padding: 2.5rem 0;
}

.seo-block__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.seo-block__title {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.seo-intro__lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-secondary, #64748b);
  margin: 0;
}

.seo-intro__lead strong {
  color: var(--color-text, #0f172a);
  font-weight: 600;
}

[data-theme="dark"] .seo-intro__lead strong {
  color: var(--color-text, #f1f5f9);
}

.seo-howto__list {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.75rem;
  line-height: 1.6;
  color: var(--color-text-secondary, #64748b);
}

.seo-howto__list strong {
  color: var(--color-text, #0f172a);
}

[data-theme="dark"] .seo-howto__list strong {
  color: var(--color-text, #f1f5f9);
}

.seo-faq__list {
  display: grid;
  gap: 0.65rem;
}

.seo-faq__item {
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 12px;
  background: var(--color-surface, #fff);
  overflow: hidden;
}

[data-theme="dark"] .seo-faq__item {
  background: var(--color-surface-elevated, #1e293b);
  border-color: var(--color-border, #334155);
}

.seo-faq__item summary {
  cursor: pointer;
  font-weight: 600;
  padding: 1rem 1.15rem;
  list-style: none;
}

.seo-faq__item summary::-webkit-details-marker {
  display: none;
}

.seo-faq__answer {
  padding: 0 1.15rem 1rem;
  color: var(--color-text-secondary, #64748b);
  line-height: 1.6;
}

.seo-faq__answer p {
  margin: 0;
}

.seo-related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}

.seo-related__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 2rem 1rem 1.1rem;
  border-radius: 12px;
  border: 1px solid var(--color-border, #e2e8f0);
  background: var(--color-surface, #fff);
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 6px 16px -10px rgba(15, 23, 42, 0.10);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

[data-theme="dark"] .seo-related__card {
  background: var(--color-surface-elevated, #1e293b);
  border-color: var(--color-border, #334155);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 20px -10px rgba(0, 0, 0, 0.5);
}

.seo-related__card:hover {
  border-color: var(--color-primary, #6366f1);
  box-shadow: 0 12px 28px -10px rgba(99, 102, 241, 0.28);
  transform: translateY(-3px);
}

/* Discoverable-module arrow that reveals on hover */
.seo-related__card::after {
  content: '→';
  position: absolute;
  top: 0.95rem;
  right: 1.05rem;
  font-weight: 700;
  color: var(--color-primary, #6366f1);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.seo-related__card:hover::after {
  opacity: 1;
  transform: translateX(0);
}

.seo-related__card strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text, #0f172a);
}

[data-theme="dark"] .seo-related__card strong {
  color: var(--color-text, #f1f5f9);
}

.seo-related__card span {
  font-size: 0.8125rem;
  color: var(--color-text-muted, #94a3b8);
  line-height: 1.45;
}

/* Category indicator chip — turns related links into discoverable modules */
.seo-related__tag {
  align-self: flex-start;
  font-size: 0.625rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary, #6366f1);
  background: rgba(99, 102, 241, 0.10);
  border-radius: 999px;
  padding: 2px 8px;
  margin-bottom: 0.1rem;
}
[data-theme="dark"] .seo-related__tag {
  background: rgba(139, 92, 246, 0.20);
  color: #a5b4fc;
}

/* Page-specific placement */
.tlx-shell .seo-breadcrumb,
.pcg-shell .seo-breadcrumb,
.epg-shell .seo-breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.home-seo-blocks .seo-block__inner {
  max-width: 1100px;
}

@media (max-width: 640px) {
  .seo-block {
    padding: 1.75rem 0;
  }

  .seo-related__grid {
    grid-template-columns: 1fr;
  }
}

/* Tool pages — SEO blocks below the tool UI */
.tool-seo-blocks {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  border-top: 1px solid var(--color-border, #e2e8f0);
}

[data-theme="dark"] .tool-seo-blocks {
  border-top-color: var(--color-border, #334155);
}

.tool-seo-blocks .seo-block {
  padding: 2rem 0;
}

.tool-seo-blocks .seo-block__inner {
  max-width: 100%;
  padding: 0;
}

.seo-features__list {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.5rem;
  line-height: 1.55;
  color: var(--color-text-secondary, #64748b);
}

.seo-usecases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.seo-usecases__item {
  padding: 1rem 1.1rem;
  border-radius: 12px;
  border: 1px solid var(--color-border, #e2e8f0);
  background: var(--color-surface, #fff);
}

[data-theme="dark"] .seo-usecases__item {
  background: var(--color-surface-elevated, #1e293b);
  border-color: var(--color-border, #334155);
}

.seo-usecases__item h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.seo-usecases__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--color-text-secondary, #64748b);
}

/* Phase 4 — coming soon / waitlist / live alias pages */
.seo-coming-soon-badge {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fcd34d;
}

.seo-coming-soon-badge--live {
  background: #dcfce7;
  color: #15803d;
  border-color: #86efac;
}

.seo-live-tool-banner {
  max-width: 1100px;
  margin: 0 auto 1.25rem;
  padding: 0.85rem 1.1rem;
  border-radius: 12px;
  border: 1px solid #7dd3fc;
  background: linear-gradient(135deg, #e0f2fe 0%, #f0f9ff 100%);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.seo-live-tool-banner p {
  margin: 0;
  flex: 1;
  min-width: 200px;
  font-size: 0.95rem;
}

.seo-live-tool-banner__badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: #0ea5e9;
  color: #fff;
}

.seo-live-tool-banner__link {
  font-weight: 600;
  white-space: nowrap;
}

.seo-waitlist {
  margin: 1.5rem 0 0;
  padding: 1.25rem 1.35rem;
  border-radius: 12px;
  border: 1px dashed var(--color-border, #cbd5e1);
  background: var(--color-surface, #f8fafc);
}

.seo-waitlist__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.seo-waitlist__desc {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary, #64748b);
}

.seo-waitlist__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

[data-theme="dark"] .seo-waitlist {
  background: var(--color-surface-elevated, #1e293b);
  border-color: var(--color-border, #475569);
}

[data-theme="dark"] .seo-live-tool-banner {
  background: linear-gradient(135deg, #0c4a6e 0%, #1e293b 100%);
  border-color: #0369a1;
}

/* Phase 8 — language switcher + RTL home landings */
.seo-lang-switcher {
  margin: 0 0 1.25rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--color-border, #e2e8f0);
  background: var(--color-surface, #f8fafc);
}

.seo-lang-switcher__label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-secondary, #64748b);
  margin-bottom: 0.45rem;
}

.seo-lang-switcher__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.seo-lang-switcher__list a,
.seo-lang-switcher__current {
  font-size: 0.9rem;
}

.seo-lang-switcher__current {
  font-weight: 600;
  color: var(--color-primary, #6366f1);
}

.i18n-home-page[dir="rtl"] .tool-breadcrumbs,
.i18n-home-page[dir="rtl"] .seo-howto__list {
  direction: rtl;
}

html[dir="rtl"] .seo-lang-switcher__list {
  direction: rtl;
}