/* ============================================================================
   SEO STYLES v2.0 - Letras & Versos | Frank Caldera
   ============================================================================ */

/* ══════════════════════════════════════════════
   SECCIÓN ÍNDICE DE ESCRITOS
   Reemplaza "Recorridos de lectura"
   Mismo ancho y posición que la sección original
   ══════════════════════════════════════════════ */

.seo-index-section {
  padding: 3rem var(--space-6, 1.5rem) 2rem;
  background: var(--bg-primary, transparent);
}

#seoIndexWrapper {
  max-width: 1600px;
  margin: 0 auto;
}

/* Spinner de carga inicial */
.seo-index-loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-tertiary, #9ca3af);
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.875rem;
  padding: 1rem 0;
}

/* Header de la sección */
.seo-index-header {
  margin-bottom: 1.75rem;
}

.seo-index-main-title {
  font-family: var(--font-display, 'Playfair Display', Georgia, serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--text-primary, #f0f0f0);
  margin: 0 0 0.4rem 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.seo-index-main-title i {
  color: var(--accent-gold, #d4af37);
  font-size: 0.9em;
}

.seo-index-main-desc {
  font-family: var(--font-serif, 'Crimson Pro', Georgia, serif);
  font-size: 1rem;
  color: var(--text-tertiary, #9ca3af);
  margin: 0;
  font-style: italic;
}

/* ══════════════════════════════════════════════
   GRID DE TARJETAS POR CATEGORÍA
   Mismo scroll horizontal que los Recorridos
   ══════════════════════════════════════════════ */

.seo-cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .seo-cat-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* ══════════════════════════════════════════════
   TARJETA DE CATEGORÍA
   Imagen de gradiente encima + lista de links abajo
   ══════════════════════════════════════════════ */

.seo-cat-card {
  background: var(--card-bg, #1a1a1a);
  border: 1px solid var(--border-color, #2d2d2d);
  border-radius: 1rem;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.seo-cat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

/* Parte superior con gradiente (igual que los Recorridos) */
.seo-cat-card-header {
  position: relative;
  height: 130px;
  display: flex;
  align-items: flex-end;
  padding: 1rem 1.25rem;
}

.seo-cat-icon {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.6);
}

.seo-cat-explore-btn {
  display: inline-block;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  letter-spacing: 0.03em;
}

/* Parte inferior con info + links */
.seo-cat-card-body {
  padding: 1.25rem;
}

.seo-cat-title {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary, #f0f0f0);
  margin: 0 0 0.3rem 0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.seo-cat-count {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-gold, #d4af37);
  text-transform: none;
  letter-spacing: 0;
}

.seo-cat-desc {
  font-family: var(--font-serif, 'Crimson Pro', Georgia, serif);
  font-size: 0.9375rem;
  color: var(--text-tertiary, #9ca3af);
  margin: 0 0 1rem 0;
  font-style: italic;
  line-height: 1.4;
}

/* Lista de links a escritos individuales */
.seo-cat-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 240px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color, #2d2d2d) transparent;
}

.seo-cat-links::-webkit-scrollbar {
  width: 4px;
}

.seo-cat-links::-webkit-scrollbar-track {
  background: transparent;
}

.seo-cat-links::-webkit-scrollbar-thumb {
  background: var(--border-color, #2d2d2d);
  border-radius: 999px;
}

.seo-cat-links li {
  margin: 0;
}

.seo-cat-links a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: background 0.15s ease, padding-left 0.15s ease;
  color: var(--text-secondary, #d0d0d0);
  font-family: var(--font-serif, 'Crimson Pro', Georgia, serif);
  font-size: 0.9375rem;
  line-height: 1.35;
}

.seo-cat-links a:hover {
  background: rgba(255, 255, 255, 0.07);
  padding-left: 0.875rem;
  color: var(--accent-gold, #d4af37);
}

.seo-cat-links a i {
  font-size: 0.6rem;
  color: var(--accent-burgundy, #9b2c2c);
  flex-shrink: 0;
  opacity: 0.7;
}

.seo-card-link-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.seo-card-link-date {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.7rem;
  color: var(--text-tertiary, #666);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════
   SECCIÓN DE ARTÍCULO COMPLETO PARA GOOGLEBOT
   Aparece solo cuando se llega via URL directa
   ══════════════════════════════════════════════ */

#seo-article-page {
  display: none;
  max-width: 800px;
  margin: 3rem auto;
  padding: 0 var(--space-6, 1.5rem);
}

.seo-article-inner {
  background: var(--card-bg, #1a1a1a);
  border: 1px solid var(--border-color, #2d2d2d);
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.seo-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.8rem;
  color: var(--text-tertiary, #666);
  margin-bottom: 1.5rem;
}

.seo-breadcrumb a {
  color: var(--accent-burgundy, #9b2c2c);
  text-decoration: none;
}

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

.seo-article-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-color, #2d2d2d); }

.seo-article-category {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  background: linear-gradient(135deg, var(--accent-burgundy, #9b2c2c), var(--accent-gold, #d4af37));
  color: #fff;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.seo-article-title {
  font-family: var(--font-display, 'Playfair Display', Georgia, serif);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--text-primary, #f0f0f0);
  line-height: 1.2;
  margin: 0 0 0.75rem 0;
}

.seo-article-meta {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.85rem;
  color: var(--text-tertiary, #9ca3af);
  margin: 0 0 0.5rem 0;
}

.seo-article-desc {
  font-family: var(--font-serif, 'Crimson Pro', Georgia, serif);
  font-size: 1.1rem;
  color: var(--text-secondary, #c0c0c0);
  font-style: italic;
  margin: 0;
  line-height: 1.6;
}

.seo-article-body {
  font-family: var(--font-serif, 'Crimson Pro', Georgia, serif);
  font-size: 1.1rem;
  color: var(--text-secondary, #c0c0c0);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.seo-article-body p { margin-bottom: 1.2rem; }

.seo-article-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color, #2d2d2d);
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.825rem;
  color: var(--text-tertiary, #666);
}

.seo-article-footer a { color: var(--accent-burgundy, #9b2c2c); text-decoration: none; }
.seo-article-footer a:hover { text-decoration: underline; }

/* sr-only — definido en core-styles.css (fuente canónica) */

/* Modo claro */
@media (prefers-color-scheme: light) {
  .seo-cat-card { background: #ffffff; border-color: #e5e7eb; }
  .seo-cat-title { color: #1a1a1a; }
  .seo-cat-links a { color: #4a4a4a; }
  .seo-cat-links a:hover { background: rgba(0,0,0,0.05); color: #9b2c2c; }
  .seo-index-main-title { color: #1a1a1a; }
  .seo-article-inner { background: #ffffff; border-color: #e5e7eb; }
  .seo-article-title { color: #1a1a1a; }
  .seo-article-body { color: #4a4a4a; }
}

/* ══════════════════════════════════════════════
   BOTÓN "VER TODOS" en tarjetas de categoría
   ══════════════════════════════════════════════ */
.seo-cat-ver-todos {
  display: block;
  margin-top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color, #2d2d2d);
  border-radius: 0.5rem;
  color: var(--accent-gold, #d4af37);
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: background 0.2s, border-color 0.2s;
  letter-spacing: 0.01em;
}

.seo-cat-ver-todos:hover {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--accent-gold, #d4af37);
}

/* ══════════════════════════════════════════════
   LINK WRAPPER DE TARJETA (SEO)
   El <a> envuelve la tarjeta pero no cambia
   el aspecto visual — el modal sigue igual
   ══════════════════════════════════════════════ */
.writing-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  outline: none;
  border-radius: inherit;
}

.writing-card-link:focus-visible .writing-card {
  outline: 2px solid var(--accent-gold, #d4af37);
  outline-offset: 2px;
}