/* ═══════════════════════════════════════════
   ToolsIA — styles-extra v3
   Artículos, categorías, megamenú, banners RPM,
   comparativas, casos de uso y utilidades SEO
═══════════════════════════════════════════ */

/* ─── BARRA SUPERIOR ─── */
.adsense-topbar {
  background: linear-gradient(90deg,
    rgba(255,200,50,0.06),
    rgba(100,80,255,0.06));
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 0.3rem 1rem;
  font-size: 0.72rem;
  color: var(--text3);
  letter-spacing: 0.04em;
  position: relative;
  z-index: 101;  /* por encima del nav sticky */
}

/* ─── MEGAMENÚ DESKTOP ─── */
.nav-item-has-sub { position: relative; }

.nav-item-has-sub > a::after {
  content: " ▾";
  font-size: 0.6em;
  opacity: 0.5;
  margin-left: 1px;
}

.nav-submenu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10,10,22,0.97);
  border: 1px solid var(--border-md);
  border-radius: 12px;
  padding: 0.65rem 0.5rem;
  min-width: 230px;
  z-index: 999;
  box-shadow: 0 20px 48px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  /* Triángulo de conexión visual */
  margin-top: 0;
}

/* Puente invisible para que el hover no se rompa */
.nav-submenu::before {
  content: '';
  position: absolute;
  top: -10px; left: 0; right: 0;
  height: 10px;
}

.nav-item-has-sub:hover .nav-submenu,
.nav-item-has-sub:focus-within .nav-submenu {
  display: block;
  animation: submenuFade 0.18s ease both;
}

@keyframes submenuFade {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.nav-submenu a {
  display: block;
  padding: 0.42rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text2);
  border-radius: 7px;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
  line-height: 1.4;
}
.nav-submenu a:hover {
  background: rgba(99,179,237,0.07);
  color: var(--text);
}

.nav-submenu-divider {
  height: 1px;
  background: var(--border);
  margin: 0.4rem 0.85rem;
}

/* ─── ETIQUETA DE INTENCIÓN (intent badge inline) ─── */
.card-intent-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 5px;
  vertical-align: middle;
  line-height: 1.6;
}
.intent-hot      { background: rgba(252,129,129,0.12); color: #fc8181; border: 1px solid rgba(252,129,129,0.2); }
.intent-money    { background: rgba(245,192,48,0.12);  color: var(--gold); border: 1px solid rgba(245,192,48,0.2); }
.intent-evergreen{ background: rgba(104,211,145,0.12); color: var(--green); border: 1px solid rgba(104,211,145,0.2); }

/* ── Chips de veredicto rápido (comparativa destacada) ── */
.verdict-teaser {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}
.verdict-chip {
  font-size: 0.71rem;
  padding: 3px 9px;
  border-radius: 999px;
  font-weight: 600;
  white-space: nowrap;
}
.vc-green { background: rgba(104,211,145,0.1);  color: var(--green);  border: 1px solid rgba(104,211,145,0.22); }
.vc-blue  { background: rgba(99,179,237,0.1);   color: var(--accent); border: 1px solid rgba(99,179,237,0.22); }
.vc-amber { background: rgba(246,173,85,0.1);   color: var(--amber);  border: 1px solid rgba(246,173,85,0.22); }

/* ═══════════════════════════════════════════
   BANNERS DE ALTO CPM
   Secciones con fondo diferenciado para que
   los anuncios contextualmente cercanos
   tengan mayor relevancia temática (↑ RPM)
═══════════════════════════════════════════ */

/* ── Banner Monetización ── */
.monetize-banner {
  background: linear-gradient(120deg,
    rgba(245,192,48,0.05) 0%,
    rgba(80,60,200,0.07) 100%);
  border: 1px solid rgba(245,192,48,0.16);
  border-radius: 16px;
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.22s, transform 0.22s, box-shadow 0.22s;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.monetize-banner::after {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(245,192,48,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.monetize-banner:hover {
  border-color: rgba(245,192,48,0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(245,192,48,0.08);
}
.monetize-banner-icon { font-size: 3.2rem; flex-shrink: 0; line-height: 1; }
.monetize-banner-body { flex: 1; min-width: 200px; }
.monetize-banner-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4rem;
}
.monetize-banner-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.45rem;
  color: var(--text);
}
.monetize-banner-desc {
  font-size: 0.86rem;
  color: var(--text2);
  line-height: 1.55;
}
.monetize-banner-cta {
  flex-shrink: 0;
  background: rgba(245,192,48,0.1);
  border: 1px solid rgba(245,192,48,0.28);
  color: var(--gold);
  padding: 0.65rem 1.4rem;
  border-radius: 9px;
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
  font-family: 'Manrope', sans-serif;
  transition: background 0.18s, border-color 0.18s;
}
.monetize-banner:hover .monetize-banner-cta {
  background: rgba(245,192,48,0.16);
  border-color: rgba(245,192,48,0.4);
}

/* ── Banner Prompts ── */
.prompts-highlight {
  background: linear-gradient(120deg,
    rgba(99,179,237,0.05) 0%,
    rgba(104,211,145,0.04) 100%);
  border: 1px solid rgba(99,179,237,0.15);
  border-radius: 16px;
  padding: 1.75rem 2rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  transition: border-color 0.22s, transform 0.22s;
}
.prompts-highlight:hover {
  border-color: rgba(99,179,237,0.28);
  transform: translateY(-2px);
}
.prompts-highlight-icon { font-size: 2.8rem; flex-shrink: 0; line-height: 1; }
.prompts-highlight-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.3rem;
}
.prompts-highlight-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 0.3rem;
  color: var(--text);
}
.prompts-highlight-desc {
  font-size: 0.84rem;
  color: var(--text2);
  line-height: 1.55;
}
.prompts-highlight-desc a {
  color: var(--accent2);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.prompts-highlight-cta {
  flex-shrink: 0;
  background: rgba(99,179,237,0.08);
  border: 1px solid rgba(99,179,237,0.22);
  color: var(--accent);
  padding: 0.6rem 1.2rem;
  border-radius: 9px;
  font-size: 0.86rem;
  font-weight: 700;
  white-space: nowrap;
  font-family: 'Manrope', sans-serif;
  transition: background 0.18s;
}
.prompts-highlight:hover .prompts-highlight-cta {
  background: rgba(99,179,237,0.14);
}

/* ═══════════════════════════════════════════
   SECCIÓN COMPARATIVAS
   Alta intención de compra → RPM muy elevado
═══════════════════════════════════════════ */
.comparativas-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 0.9rem;
}

.comp-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
  position: relative;
  overflow: hidden;
}
.comp-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  opacity: 0;
  transition: opacity 0.2s;
}
.comp-card:hover {
  border-color: rgba(159,122,234,0.25);
  transform: translateY(-2px);
  background: var(--bg3);
}
.comp-card:hover::before { opacity: 1; }

.comp-icon {
  font-size: 2rem;
  flex-shrink: 0;
  line-height: 1;
}
.comp-body { min-width: 0; }
.comp-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.2rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.comp-meta {
  font-size: 0.75rem;
  color: var(--text3);
  font-weight: 500;
}

/* ═══════════════════════════════════════════
   HUB CASOS DE USO
   Aumenta páginas vistas / sesión → mejor RPM
   sesión y menor tasa de rebote
═══════════════════════════════════════════ */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 0.85rem;
}

.usecase-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 1.1rem 1.15rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
  overflow: hidden;
}
.usecase-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 13px;
  background: linear-gradient(135deg, rgba(99,179,237,0.025) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.usecase-card:hover {
  border-color: rgba(99,179,237,0.2);
  transform: translateY(-2px);
  background: var(--bg3);
}
.usecase-card:hover::after { opacity: 1; }

.usecase-icon { font-size: 1.55rem; line-height: 1; }
.usecase-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.01em;
}
.usecase-desc {
  font-size: 0.76rem;
  color: var(--text2);
  line-height: 1.5;
}

/* ════════════════════════════════════════════
   ESTILOS DE ARTÍCULO (páginas internas)
════════════════════════════════════════════ */
.article-hero {
  position: relative;
  z-index: 1;
  padding: 4.5rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.article-hero-inner { max-width: 740px; margin: 0 auto; }

.article-emoji {
  font-size: 3.2rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.article-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin: 0.5rem 0 1.2rem;
  color: var(--text);
}

.article-meta-bar {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--text3);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.article-meta-bar span { display: flex; align-items: center; gap: 0.3rem; }

.article-layout {
  display: grid;
  grid-template-columns: 1fr 290px;
  gap: 3.5rem;
  align-items: start;
  padding-top: 3.5rem;
}

.article-content {
  min-width: 0;
  font-size: 1.01rem;
  line-height: 1.85;
  color: var(--text);
}

.article-content h2 {
  font-family: 'Syne', sans-serif;
  font-size: 1.45rem;
  font-weight: 700;
  margin: 2.8rem 0 1rem;
  letter-spacing: -0.025em;
  color: var(--text);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.article-content h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 2rem 0 0.65rem;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.article-content p { margin-bottom: 1.35rem; }

.article-content ul,
.article-content ol {
  margin: 0 0 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.article-content li { color: var(--text2); }
.article-content li strong { color: var(--text); }

/* callout / blockquote */
.article-content em {
  color: var(--text2);
  background: rgba(99,179,237,0.04);
  padding: 0.95rem 1.2rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 8px 8px 0;
  display: block;
  margin: 1.5rem 0;
  font-style: normal;
  font-size: 0.93rem;
  line-height: 1.72;
}

.article-content strong { color: var(--text); font-weight: 600; }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.article-content a:hover { opacity: 0.8; }

/* código inline */
.article-content code {
  background: var(--bg3);
  border: 1px solid var(--border-md);
  border-radius: 4px;
  padding: 0.12em 0.45em;
  font-family: 'Fira Code', 'Fira Mono', monospace;
  font-size: 0.88em;
  color: var(--accent);
}

/* bloque de código */
.article-content pre {
  background: var(--bg2);
  border: 1px solid var(--border-md);
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.875rem;
  line-height: 1.65;
}
.article-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}

.article-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 2.8rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* ─── HERO DE CATEGORÍA ─── */
.category-hero {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 4.5rem 2rem;
  border-bottom: 1px solid var(--border);
}
.category-hero::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99,179,237,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.category-hero-inner { max-width: 580px; margin: 0 auto; position: relative; }

/* ─── NAV ACTIVO Y HAMBURGUESA ─── */
.nav-active { color: var(--text) !important; }

.nav-hamburger {
  display: none;
  background: none;
  border: 1px solid var(--border-md);
  color: var(--text2);
  border-radius: 7px;
  padding: 0.3rem 0.65rem;
  font-size: 1.05rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.nav-hamburger:hover { color: var(--text); border-color: var(--border-hover); }

.nav-mobile-menu {
  display: none;
  flex-direction: column;
  padding: 0.75rem 1.5rem 1rem;
  border-top: 1px solid var(--border);
  background: rgba(10,10,22,0.97);
  backdrop-filter: blur(16px);
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  padding: 0.7rem 0;
  color: var(--text2);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu a:hover { color: var(--accent); }

/* ─── LEGAL ─── */
.legal-content h2 { font-size: 1.25rem; margin: 2.2rem 0 0.7rem; border-bottom: none; }
.legal-content h3 { font-size: 1rem; margin: 1.5rem 0 0.5rem; color: var(--accent); }
.legal-content p, .legal-content li { color: var(--text2); font-size: 0.92rem; line-height: 1.8; }

/* ─── FORMULARIO ─── */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 0.45rem;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border-md);
  border-radius: 9px;
  padding: 0.72rem 1rem;
  color: var(--text);
  font-size: 0.9rem;
  font-family: 'Manrope', sans-serif;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(99,179,237,0.45);
  box-shadow: 0 0 0 3px rgba(99,179,237,0.07);
}
.form-group select option { background: var(--bg2); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ─── TABLA DE CONTENIDOS (TOC) ─── */
.toc-widget {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 1.25rem;
  position: sticky;
  top: 80px;
}
.toc-widget .widget-title { margin-bottom: 0.85rem; }
.toc-list { list-style: none; display: flex; flex-direction: column; gap: 0; }
.toc-list li a {
  display: block;
  font-size: 0.8rem;
  color: var(--text2);
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  line-height: 1.5;
}
.toc-list li a:hover,
.toc-list li a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(99,179,237,0.04);
}

/* ─── ARTÍCULOS RELACIONADOS ─── */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

/* ─── BREADCRUMB ─── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text3);
  padding: 0.75rem 0;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text2); transition: color 0.15s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: var(--text3); }

/* ─── BARRA DE PROGRESO DE LECTURA ─── */
.reading-progress {
  position: fixed;
  top: 62px;
  left: 0; right: 0;
  height: 2px;
  background: transparent;
  z-index: 99;
}
.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  width: 0%;
  transition: width 0.1s linear;
}

/* ─── SHARE BUTTONS ─── */
.share-bar {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 7px;
  border: 1px solid var(--border-md);
  color: var(--text2);
  background: var(--bg2);
  cursor: pointer;
  font-family: 'Manrope', sans-serif;
  transition: color 0.15s, border-color 0.15s;
}
.share-btn:hover { color: var(--accent); border-color: rgba(99,179,237,0.25); }

/* ─── TABLA DE COMPARATIVA STICKY ──
   Para artículos de comparativas: añadir al inicio
   reduce rebote y aumenta impresiones por visita    */
.comparison-table-sticky {
  position: sticky;
  top: 70px;
  background: var(--bg2);
  border: 1px solid var(--border-md);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  margin-bottom: 2rem;
  z-index: 10;
}
.comparison-table-sticky .verdict-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.comparison-table-sticky table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}
.comparison-table-sticky th {
  text-align: left;
  color: var(--text3);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.6rem;
  border-bottom: 1px solid var(--border);
}
.comparison-table-sticky td {
  padding: 0.45rem 0.6rem;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.comparison-table-sticky tr:last-child td { border-bottom: none; }
.comparison-table-sticky .winner {
  color: var(--green);
  font-weight: 600;
}

/* ─── RESPONSIVE ESPECÍFICO ─── */
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-layout aside { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .article-hero { padding: 3rem 1.5rem; }

  /* Banners: stack vertical */
  .monetize-banner,
  .prompts-highlight {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
  }
  .monetize-banner-cta,
  .prompts-highlight-cta { align-self: flex-start; }

  /* Comparativas */
  .comparativas-strip { grid-template-columns: 1fr; }

  /* Casos de uso: 2 columnas en tablet */
  .usecase-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  /* Casos de uso: 2 columnas en móvil pequeño */
  .usecase-grid { grid-template-columns: 1fr 1fr; }

  /* Megamenú: oculto en móvil (usa hamburguesa) */
  .nav-submenu { display: none !important; }

  /* Comparativas: 1 columna */
  .comparativas-strip { grid-template-columns: 1fr; }

  /* Chips más pequeños */
  .verdict-chip { font-size: 0.66rem; padding: 2px 7px; }
  .card-intent-badge { font-size: 0.6rem; padding: 1px 5px; }
}