/* ================================================================
   VeriFactu.info — article.css
   Estilos compartidos para todos los artículos del sitio
   Importa: ../style.css (variables globales y base — Light Mode)
   
   CONTRASTE: Todos los colores de texto están optimizados para
   fondos claros (WCAG AA mínimo). No usar colores del dark mode.
================================================================ */

/* ----------------------------------------------------------------
   LAYOUT DEL ARTÍCULO
---------------------------------------------------------------- */
.article-page {
  padding-top: var(--header-height);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  padding-block: var(--space-12);
  align-items: start;
}

/* Columna principal */
.article-main {
  min-width: 0;
}

/* Sidebar */
.article-sidebar {
  display: none;
}

/* ----------------------------------------------------------------
   BREADCRUMBS
---------------------------------------------------------------- */
.breadcrumbs {
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-8);
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0; padding: 0;
}

.breadcrumbs-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.breadcrumbs-list li + li::before {
  content: '/';
  color: var(--color-text-subtle);
}

.breadcrumbs-list a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.breadcrumbs-list a:hover { color: var(--color-indigo-500); }
.breadcrumbs-list li:last-child { color: var(--color-text-body); font-weight: 500; }

/* ----------------------------------------------------------------
   CABECERA DEL ARTÍCULO
---------------------------------------------------------------- */
.article-header {
  margin-bottom: var(--space-10);
}

.article-category-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(79,70,229,0.08);
  border: 1px solid rgba(79,70,229,0.18);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-indigo-600);
  margin-bottom: var(--space-4);
}

.article-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);         /* #1A202C — azul marino casi negro */
  margin-bottom: var(--space-5);
}

.article-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);            /* #4A5568 — gris oscuro legible */
  line-height: 1.75;
  max-width: 720px;
  margin-bottom: var(--space-6);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  padding-block: var(--space-4);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);            /* #4A5568 */
}
.article-meta-item svg { color: var(--color-text-subtle); }

/* Author box */
.author-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-8);
}
.author-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-indigo-500), var(--color-cyan-500));
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: var(--font-size-lg);
  font-weight: 700;
  flex-shrink: 0;
}
.author-info { flex: 1; }
.author-name {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-primary);          /* #1A202C */
  margin-bottom: 2px;
}
.author-title {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);            /* #4A5568 */
  margin-bottom: var(--space-2);
}
.author-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-subtle);           /* #718096 */
  line-height: 1.6;
}

/* ----------------------------------------------------------------
   CUERPO DEL ARTÍCULO — Tipografía de lectura
---------------------------------------------------------------- */
.article-body {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-body);             /* #2D3748 — gris oscuro alta legibilidad */
}

.article-body h2 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--color-text-primary);          /* #1A202C */
  margin-top: var(--space-12);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

.article-body h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #0f172a;                            /* Azul marino casi negro */
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

.article-body h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);          /* #1A202C */
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.article-body p {
  margin-bottom: var(--space-5);
  color: var(--color-text-body);             /* #2D3748 */
}

.article-body strong { color: var(--color-text-primary); font-weight: 600; }
.article-body em     { color: var(--color-text-muted); font-style: italic; }

.article-body a {
  color: var(--color-indigo-500);
  text-decoration: underline;
  text-decoration-color: rgba(79,70,229,0.3);
  text-underline-offset: 3px;
  transition: all var(--transition-fast);
}
.article-body a:hover {
  color: var(--color-indigo-600);
  text-decoration-color: rgba(79,70,229,0.6);
}

/* Listas */
.article-body ul,
.article-body ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}
.article-body li {
  margin-bottom: var(--space-2);
  color: var(--color-text-body);             /* #2D3748 */
}
.article-body ul li::marker { color: var(--color-indigo-500); }
.article-body ol li::marker { color: var(--color-indigo-500); font-weight: 600; }

/* Bloques de código (XML, hash examples) */
.article-body pre {
  background: #1E293B;
  border: 1px solid #334155;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-block: var(--space-6);
  overflow-x: auto;
}
.article-body pre code {
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', monospace;
  font-size: var(--font-size-sm);
  color: #E2E8F0;
  line-height: 1.7;
}

/* ----------------------------------------------------------------
   CAJAS DE ALERTA / ADVERTENCIA
---------------------------------------------------------------- */
.alert-box {
  display: flex;
  gap: var(--space-5);
  padding: 1.5rem 1.75rem;
  border-radius: 16px;
  margin-block: var(--space-8);
  border-left: 4px solid transparent;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.alert-box-icon {
  flex-shrink: 0;
  width: 24px; height: 24px;
  margin-top: 3px;
}

.alert-box-content { flex: 1; }
.alert-box-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.alert-box-text {
  font-size: 1.05rem;
  line-height: 1.75;
  margin: 0;
  font-weight: 400;
}

/* Danger */
.alert-box--danger {
  background: rgba(220,38,38,0.06);
  border-left-color: var(--color-red-500);
}
.alert-box--danger .alert-box-title { color: #991B1B; }
.alert-box--danger .alert-box-text  { color: var(--color-text-body); }
.alert-box--danger .alert-box-icon  { color: var(--color-red-500); }

/* Warning */
.alert-box--warning {
  background: rgba(217,119,6,0.06);
  border-left-color: var(--color-amber-500);
}
.alert-box--warning .alert-box-title { color: #92400E; }
.alert-box--warning .alert-box-text  { color: var(--color-text-body); }
.alert-box--warning .alert-box-icon  { color: var(--color-amber-500); }

/* Info */
.alert-box--info {
  background: rgba(79,70,229,0.06);
  border-left-color: var(--color-indigo-500);
}
.alert-box--info .alert-box-title { color: var(--color-indigo-600); }
.alert-box--info .alert-box-text  { color: var(--color-text-body); }
.alert-box--info .alert-box-icon  { color: var(--color-indigo-500); }

/* Success */
.alert-box--success {
  background: rgba(5,150,105,0.06);
  border-left-color: var(--color-emerald-500);
}
.alert-box--success .alert-box-title { color: #065F46; }
.alert-box--success .alert-box-text  { color: var(--color-text-body); }
.alert-box--success .alert-box-icon  { color: var(--color-emerald-500); }

/* ----------------------------------------------------------------
   TABLAS
---------------------------------------------------------------- */
.table-wrapper {
  overflow-x: auto;
  margin-block: var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.data-table caption {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  caption-side: top;
}

.data-table thead tr {
  background: rgba(79,70,229,0.06);
}
.data-table thead th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-indigo-600);
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}

.data-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: rgba(79,70,229,0.03); }

.data-table tbody td {
  padding: 0.875rem 1.25rem;
  color: #334155;
  vertical-align: top;
  line-height: 1.6;
  font-size: 1rem;
}
.data-table tbody td strong { color: var(--color-text-primary); }

.data-table .td-highlight { color: #991B1B; font-weight: 700; }
.data-table .td-success   { color: #065F46; font-weight: 700; }
.data-table .td-warning   { color: #92400E; font-weight: 700; }
.data-table .td-info      { color: var(--color-indigo-600); font-weight: 700; }

/* ----------------------------------------------------------------
   ADSENSE PLACEHOLDER
---------------------------------------------------------------- */
.adsense-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  background: #F8FAFC;
  border: 1px dashed var(--color-border-light);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-block: var(--space-8);
  user-select: none;
}

/* ----------------------------------------------------------------
   DISCLAIMER YMYL
---------------------------------------------------------------- */
.ymyl-disclaimer {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: #FFFBEB;
  border: 1px solid rgba(217,119,6,0.2);
  border-radius: var(--radius-lg);
  margin-block: var(--space-8);
}
.ymyl-disclaimer-icon {
  flex-shrink: 0;
  color: var(--color-amber-500);
  margin-top: 2px;
}
.ymyl-disclaimer p {
  font-size: var(--font-size-xs);
  color: var(--color-text-body);             /* #2D3748 */
  line-height: 1.7;
  margin: 0;
}
.ymyl-disclaimer strong { color: var(--color-text-primary); }

/* ----------------------------------------------------------------
   SECCIÓN FAQ
---------------------------------------------------------------- */
.faq-section-article {
  margin-top: var(--space-16);
  padding-top: var(--space-10);
  border-top: 1px solid var(--color-border);
}

.faq-section-article h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-primary);          /* #1A202C */
  margin-bottom: var(--space-6);
  border-bottom: none !important;
  padding-bottom: 0 !important;
}

.faq-item {
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  margin-bottom: var(--space-3);
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
  transition: border-color var(--transition-fast);
}
.faq-item:hover { border-color: var(--color-border-light); }

.faq-question-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 1.1rem 1.5rem;
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
  transition: background var(--transition-fast);
}
.faq-question-btn:hover { background: var(--color-bg-card-hover); }
.faq-question-btn[aria-expanded="true"] { background: var(--color-bg-card-hover); }

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-text-subtle);
}
.faq-question-btn[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }

.faq-answer-panel {
  display: none;
  padding: 1.25rem 1.5rem 1.5rem;
  background: #FAFBFC;
  border-top: 1px solid var(--color-border);
  font-size: 1.05rem;
  color: #334155;
  line-height: 1.75;
  font-weight: 400;
}
.faq-answer-panel.is-open { display: block; }
.faq-answer-panel strong { color: var(--color-text-primary); font-weight: 600; }

/* ----------------------------------------------------------------
   FUENTES Y REFERENCIAS
---------------------------------------------------------------- */
.sources-box {
  background: var(--color-bg-card);
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 1.75rem 2rem;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
  margin-top: var(--space-10);
}
.sources-box h3 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-muted);            /* #4A5568 */
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
  margin-top: 0 !important;
}
.sources-list { list-style: none; padding: 0; margin: 0; }
.sources-list li {
  font-size: var(--font-size-xs);
  color: var(--color-text-body);             /* #2D3748 */
  padding-block: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  line-height: 1.5;
}
.sources-list li:last-child { border-bottom: none; }
.sources-list a {
  color: var(--color-indigo-500);
  text-decoration: underline;
  text-decoration-color: rgba(79,70,229,0.3);
  transition: color var(--transition-fast);
}
.sources-list a:hover { color: var(--color-indigo-600); }

/* ----------------------------------------------------------------
   INTERLINKING — Artículos relacionados
---------------------------------------------------------------- */
.related-articles {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.related-articles h3 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-muted);            /* #4A5568 */
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-5);
}
.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
.related-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
}
.related-card:hover {
  border-color: var(--color-border-light);
  background: var(--color-bg-card-hover);
  transform: translateX(4px);
}
.related-card-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(79,70,229,0.08);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  color: var(--color-indigo-500);
}
.related-card-text { flex: 1; min-width: 0; }
.related-card-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-subtle);           /* #718096 */
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  margin-bottom: 2px;
}
.related-card-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);          /* #1A202C */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.related-card-arrow { color: var(--color-text-subtle); flex-shrink: 0; }

/* ----------------------------------------------------------------
   SIDEBAR
---------------------------------------------------------------- */
.sidebar-card {
  background: var(--color-bg-card);
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 1.75rem 1.75rem;
  margin-bottom: var(--space-4);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}
.sidebar-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}
.toc-list { list-style: none; padding: 0; margin: 0; }
.toc-list li { margin-bottom: var(--space-1); }
.toc-list a {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);            /* #4A5568 */
  text-decoration: none;
  display: block;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1.5;
}
.toc-list a:hover { color: var(--color-indigo-500); background: rgba(79,70,229,0.06); }
.toc-list a.is-active { color: var(--color-indigo-600); background: rgba(79,70,229,0.08); font-weight: 600; }

/* ----------------------------------------------------------------
   RESPONSIVE — Tablet y Desktop
---------------------------------------------------------------- */
@media (min-width: 768px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr 280px;
    gap: var(--space-12);
  }
  .article-sidebar { display: block; position: sticky; top: calc(var(--header-height) + var(--space-6)); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── AdSense placeholder: oculto hasta aprobación ── */
.adsense-placeholder { display: none !important; }