/* ============================================
   BibliotecaOnline - Estilos principales
   Manual de Diseño v1.0 - Julio 2026
   Paleta: Naranja #F59E0B + Grises
   Tipografía: Inter (web)
   ============================================ */

:root {
  --naranja: #F59E0B;
  --naranja-oscuro: #D97706;
  --naranja-claro: #FEF3C7;
  --gris-plata: #C0C0C0;
  --gris-medio: #9CA3AF;
  --gris-claro: #E5E7EB;
  --gris-oscuro: #4B5563;
  --negro-texto: #1F2937;
  --blanco: #FFFFFF;
  --crema: #FFFBEB;
  --fuente: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-w: 1200px;
  --radio: 12px;
  --radio-sm: 8px;
  --sombra: 0 1px 3px rgba(31, 41, 55, 0.08), 0 1px 2px rgba(31, 41, 55, 0.04);
  --sombra-md: 0 4px 12px rgba(31, 41, 55, 0.08), 0 2px 4px rgba(31, 41, 55, 0.04);
  --sombra-lg: 0 12px 32px rgba(31, 41, 55, 0.10), 0 4px 8px rgba(31, 41, 55, 0.04);
  --transicion: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--fuente);
  font-size: 16px;
  line-height: 1.6;
  color: var(--negro-texto);
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--naranja-oscuro); text-decoration: none; transition: color var(--transicion); }
a:hover { color: var(--naranja); }

ul { list-style: none; }

/* Contenedor */
.contenedor {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--naranja);
  color: var(--blanco);
  padding: 12px 24px;
  z-index: 9999;
  transition: top var(--transicion);
}
.skip-link:focus { top: 0; color: var(--blanco); }

/* Iconos Phosphor */
.solucion-card-icono i,
.funcionalidad-icono i,
.contacto-item-icono i {
  font-size: 22px;
  font-weight: bold;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--blanco);
  border-bottom: 1px solid var(--gris-claro);
  box-shadow: var(--sombra);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-logo img {
  height: 60px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header-nav-lista {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-nav-lista a {
  color: var(--gris-oscuro);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transicion);
}
.header-nav-lista a:hover,
.header-nav-lista a.active {
  color: var(--naranja-oscuro);
}

.header-acciones {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--fuente);
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radio-sm);
  cursor: pointer;
  transition: all var(--transicion);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}

.btn-naranja {
  background: var(--naranja);
  color: var(--blanco);
}
.btn-naranja:hover {
  background: var(--naranja-oscuro);
  color: var(--blanco);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}
.btn-naranja:active { transform: translateY(0); }

.btn-secundario {
  background: var(--blanco);
  color: var(--negro-texto);
  border: 1.5px solid var(--gris-medio);
}
.btn-secundario:hover {
  border-color: var(--naranja);
  color: var(--naranja-oscuro);
  background: var(--naranja-claro);
}

.btn-grande {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-flecha::after {
  content: '→';
  margin-left: 4px;
  transition: transform var(--transicion);
}
.btn-flecha:hover::after { transform: translateX(4px); }

/* Menu movil */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--negro-texto);
  cursor: pointer;
  padding: 8px;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  padding: 80px 0 96px;
  overflow: hidden;
  background: linear-gradient(135deg, #FFFBEB 0%, #FFFFFF 50%, #F9FAFB 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--naranja-claro);
  color: var(--naranja-oscuro);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-titulo {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--negro-texto);
  margin-bottom: 20px;
}

.hero-subtitulo {
  font-size: 18px;
  line-height: 1.6;
  color: var(--gris-oscuro);
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-card {
  background: var(--negro-texto);
  color: var(--blanco);
  border-radius: var(--radio);
  padding: 32px;
  box-shadow: var(--sombra-lg);
}

.hero-card-titulo {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--naranja);
}

.hero-card-lista {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-card-lista li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.5;
  color: #E5E7EB;
}

.hero-card-lista li::before {
  content: '✓';
  color: var(--naranja);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ============================================
   SECCIONES GENERALES
   ============================================ */
.seccion {
  padding: 80px 0;
}

.seccion-gris { background: #F9FAFB; }
.seccion-crema { background: var(--crema); }
.seccion-oscura { background: var(--negro-texto); color: var(--blanco); }

.seccion-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.seccion-titulo {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--negro-texto);
  margin-bottom: 16px;
}

.seccion-oscura .seccion-titulo { color: var(--blanco); }

.seccion-subtitulo {
  font-size: 17px;
  line-height: 1.6;
  color: var(--gris-oscuro);
}

.seccion-oscura .seccion-subtitulo { color: var(--gris-medio); }

/* ============================================
   GRID DE SOLUCIONES
   ============================================ */
.soluciones-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solucion-card {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radio);
  padding: 32px;
  transition: all var(--transicion);
  display: flex;
  flex-direction: column;
}

.solucion-card:hover {
  border-color: var(--naranja);
  box-shadow: var(--sombra-md);
  transform: translateY(-2px);
}

.solucion-card-icono {
  width: 48px;
  height: 48px;
  background: var(--naranja-claro);
  border-radius: var(--radio-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--naranja-oscuro);
  font-size: 22px;
}

.solucion-card-titulo {
  font-size: 20px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 8px;
}

.solucion-card-desc {
  font-size: 15px;
  color: var(--gris-oscuro);
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.solucion-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--naranja-oscuro);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transicion);
}
.solucion-card-link:hover { gap: 10px; }

/* ============================================
   PROBLEMA / SOLUCION
   ============================================ */
.comparativa-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.comparativa-card {
  border-radius: var(--radio);
  padding: 36px;
}

.comparativa-card.problema {
  background: #F3F4F6;
  border: 1px solid var(--gris-claro);
}

.comparativa-card.solucion {
  background: var(--naranja-claro);
  border: 1px solid #FDE68A;
}

.comparativa-titulo {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--negro-texto);
}

.comparativa-lista {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comparativa-lista li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--gris-oscuro);
}

.comparativa-card.problema .comparativa-lista li::before {
  content: '✕';
  color: #DC2626;
  font-weight: 700;
  flex-shrink: 0;
}

.comparativa-card.solucion .comparativa-lista li::before {
  content: '✓';
  color: var(--naranja-oscuro);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================
   FUNCIONALIDADES
   ============================================ */
.funcionalidades-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.funcionalidad-card {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radio);
  padding: 28px;
  transition: all var(--transicion);
}

.funcionalidad-card:hover {
  border-color: var(--naranja);
  box-shadow: var(--sombra-md);
}

.funcionalidad-icono {
  width: 44px;
  height: 44px;
  background: var(--naranja-claro);
  border-radius: var(--radio-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--naranja-oscuro);
  font-size: 20px;
}

.funcionalidad-titulo {
  font-size: 17px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 8px;
}

.funcionalidad-desc {
  font-size: 14px;
  color: var(--gris-oscuro);
  line-height: 1.5;
}

/* ============================================
   VISTA RAPIDA DEL PRODUCTO (capturas)
   ============================================ */
.producto-preview {
  padding: 80px 0;
  background: #F9FAFB;
}

.producto-preview-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.producto-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.producto-preview-card {
  background: var(--blanco);
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra-md);
  transition: all var(--transicion);
}

.producto-preview-card:hover {
  box-shadow: var(--sombra-lg);
  transform: translateY(-4px);
}

.producto-preview-card.grande {
  grid-column: 1 / -1;
}

.producto-preview-img {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--gris-claro);
}

.producto-preview-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.producto-preview-card:hover .producto-preview-img img {
  transform: scale(1.03);
}

.producto-preview-info {
  padding: 20px 24px;
}

.producto-preview-numero {
  font-size: 12px;
  font-weight: 600;
  color: var(--naranja-oscuro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.producto-preview-titulo {
  font-size: 17px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 6px;
}

.producto-preview-desc {
  font-size: 14px;
  color: var(--gris-oscuro);
  line-height: 1.5;
}

/* ============================================
   PAGINAS LEGALES
   ============================================ */
.legal-texto {
  max-width: 800px;
  margin: 0 auto;
}

.legal-texto h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--gris-oscuro);
  margin: 32px 0 12px;
}

.legal-texto h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gris-oscuro);
  margin: 24px 0 10px;
}

.legal-texto h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--naranja);
  margin: 20px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.legal-texto p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gris-oscuro);
  margin-bottom: 14px;
}

.legal-lista {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
}

.legal-lista li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gris-oscuro);
  padding: 6px 0 6px 24px;
  position: relative;
}

.legal-lista li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--naranja);
}

.legal-tabla {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 24px;
  font-size: 14px;
}

.legal-tabla th {
  background: var(--gris-claro);
  font-weight: 600;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid #E5E7EB;
  color: var(--gris-oscuro);
}

.legal-tabla td {
  padding: 10px 12px;
  border: 1px solid #E5E7EB;
  color: var(--gris-oscuro);
  line-height: 1.5;
}

.legal-tabla tr:nth-child(even) td {
  background: #F9FAFB;
}

.legal-texto a {
  color: var(--naranja);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .legal-tabla {
    font-size: 12px;
  }
  .legal-tabla th, .legal-tabla td {
    padding: 8px 6px;
  }
}

/* ============================================
   PLANES - IDIOMAS
   ============================================ */
.planes-idiomas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
  margin-top: 24px;
}

.planes-idioma {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gris-oscuro);
  padding: 8px 16px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--gris-claro);
}

@media (max-width: 768px) {
  .planes-idiomas {
    gap: 8px 12px;
  }
  .planes-idioma {
    font-size: 13px;
    padding: 6px 12px;
  }
}

/* ============================================
   SECCION IDIOMAS
   ============================================ */
.seccion-idiomas {
  background: #FFF7ED;
  padding: 80px 0;
}

.idiomas-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.idiomas-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.idioma-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--gris-claro);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.idioma-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.15);
}

.idioma-card.idioma-destacado {
  background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%);
  border: 2px solid #FCD34D;
}

.idioma-bandera {
  font-size: 36px;
  margin-bottom: 10px;
  line-height: 1;
}

.idioma-icono {
  font-size: 28px;
  color: var(--naranja);
  margin-bottom: 10px;
}

.idioma-icono i {
  font-size: 28px;
}

.idioma-nombre {
  font-size: 14px;
  font-weight: 600;
  color: var(--gris-oscuro);
  line-height: 1.3;
}

.idioma-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--naranja);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.idiomas-nota {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  max-width: 800px;
  margin: 40px auto 0;
  padding: 20px 24px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--gris-claro);
}

.idiomas-nota-icono {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--naranja);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.idiomas-nota-icono i {
  font-size: 18px;
}

.idiomas-nota p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--gris-oscuro);
  margin: 0;
}

@media (max-width: 768px) {
  .idiomas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .idiomas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   PRECIOS
   ============================================ */
.cifras-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.cifra-item {
  text-align: center;
}

.cifra-numero {
  font-size: 48px;
  font-weight: 800;
  color: var(--naranja);
  line-height: 1;
  margin-bottom: 8px;
}

.cifra-texto {
  font-size: 15px;
  color: var(--gris-oscuro);
  line-height: 1.5;
}

/* ============================================
   PRECIOS
   ============================================ */
.precios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.precio-card {
  background: var(--blanco);
  border: 1.5px solid var(--gris-claro);
  border-radius: var(--radio);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transicion);
}

.precio-card:hover {
  box-shadow: var(--sombra-md);
}

.precio-card.destacado {
  border-color: var(--naranja);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.12);
}

.precio-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--naranja);
  color: var(--blanco);
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.precio-nombre {
  font-size: 18px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 4px;
}

.precio-desc {
  font-size: 13px;
  color: var(--gris-oscuro);
  margin-bottom: 20px;
}

.precio-valor {
  font-size: 32px;
  font-weight: 800;
  color: var(--negro-texto);
  margin-bottom: 4px;
}

.precio-periodo {
  font-size: 13px;
  color: var(--gris-medio);
  margin-bottom: 24px;
}

.precio-lista {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}

.precio-lista li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--gris-oscuro);
}

.precio-lista li::before {
  content: '✓';
  color: var(--naranja);
  font-weight: 700;
  flex-shrink: 0;
}

.precio-card .btn {
  width: 100%;
}

/* ============================================
   CTA FINAL
   ============================================ */
.cta-final {
  background: linear-gradient(135deg, var(--naranja) 0%, var(--naranja-oscuro) 100%);
  color: var(--blanco);
  padding: 64px 0;
  text-align: center;
}

.cta-final-titulo {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--blanco);
}

.cta-final-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.cta-final .btn {
  background: var(--blanco);
  color: var(--naranja-oscuro);
}
.cta-final .btn:hover {
  background: var(--negro-texto);
  color: var(--blanco);
  transform: translateY(-1px);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--negro-texto);
  color: var(--gris-medio);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-grid > div:nth-child(3) .footer-lista {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
}

.footer-logo {
  height: 70px;
  width: auto;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-titulo {
  color: var(--blanco);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-lista {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-lista a {
  color: var(--gris-medio);
  font-size: 14px;
  transition: color var(--transicion);
}
.footer-lista a:hover { color: var(--naranja); }

.footer-contacto {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}

.footer-contacto a {
  color: var(--gris-medio);
}
.footer-contacto a:hover { color: var(--naranja); }

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  color: var(--gris-medio);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: var(--naranja);
}

/* ============================================
   PAGINA VIDEOS
   ============================================ */
.videos-hero {
  padding: 64px 0 48px;
  background: linear-gradient(135deg, #FFFBEB 0%, #FFFFFF 100%);
  text-align: center;
}

.videos-hero-titulo {
  font-size: 36px;
  font-weight: 700;
  color: var(--negro-texto);
  margin-bottom: 12px;
}

.videos-hero-sub {
  font-size: 17px;
  color: var(--gris-oscuro);
  max-width: 600px;
  margin: 0 auto;
}

.video-principal {
  max-width: 900px;
  margin: 0 auto 64px;
  padding: 0 24px;
}

.video-principal-contenedor {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra-lg);
  background: var(--negro-texto);
}

.video-principal-contenedor iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-principal-info {
  text-align: center;
  margin-top: 24px;
}

.video-principal-titulo {
  font-size: 22px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 8px;
}

.video-principal-desc {
  font-size: 15px;
  color: var(--gris-oscuro);
  max-width: 600px;
  margin: 0 auto 20px;
}

.videos-seccion {
  padding: 48px 0;
}

.videos-categoria-titulo {
  font-size: 22px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--naranja);
  display: inline-block;
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.video-card {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radio);
  overflow: hidden;
  transition: all var(--transicion);
  cursor: pointer;
  text-decoration: none;
  display: block;
}

.video-card:hover {
  border-color: var(--naranja);
  box-shadow: var(--sombra-md);
  transform: translateY(-2px);
  color: inherit;
}

.video-thumb {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--gris-claro);
  overflow: hidden;
}

.video-thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumb::after {
  content: '▶';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(245, 158, 11, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blanco);
  font-size: 20px;
  padding-left: 4px;
  transition: all var(--transicion);
}

.video-card:hover .video-thumb::after {
  background: var(--naranja);
  transform: translate(-50%, -50%) scale(1.1);
}

.video-info {
  padding: 16px;
}

.video-numero {
  font-size: 12px;
  font-weight: 600;
  color: var(--naranja-oscuro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.video-titulo {
  font-size: 15px;
  font-weight: 600;
  color: var(--negro-texto);
  margin-bottom: 6px;
  line-height: 1.4;
}

.video-desc {
  font-size: 13px;
  color: var(--gris-oscuro);
  line-height: 1.5;
}

/* ============================================
   PAGINA GENÉRICA / SOLUCIONES
   ============================================ */
.pagina-hero {
  padding: 72px 0 48px;
  background: linear-gradient(135deg, #FFFBEB 0%, #FFFFFF 100%);
}

.pagina-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.pagina-hero-titulo {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--negro-texto);
  margin-bottom: 16px;
}

.pagina-hero-sub {
  font-size: 17px;
  line-height: 1.6;
  color: var(--gris-oscuro);
  margin-bottom: 28px;
}

.pagina-hero-img {
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra-lg);
  aspect-ratio: 4/3;
}

.pagina-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================
   FAQ
   ============================================ */
.faq-lista {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radio);
  overflow: hidden;
  transition: border-color var(--transicion);
}

.faq-item[open] {
  border-color: var(--naranja);
}

.faq-pregunta {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--negro-texto);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}

.faq-pregunta::-webkit-details-marker { display: none; }

.faq-pregunta::after {
  content: '+';
  font-size: 22px;
  color: var(--naranja);
  font-weight: 400;
  transition: transform var(--transicion);
}

.faq-item[open] .faq-pregunta::after {
  transform: rotate(45deg);
}

.faq-respuesta {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--gris-oscuro);
}

/* ============================================
   CONTACTO
   ============================================ */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contacto-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contacto-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contacto-item-icono {
  width: 44px;
  height: 44px;
  background: var(--naranja-claro);
  border-radius: var(--radio-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--naranja-oscuro);
  font-size: 20px;
  flex-shrink: 0;
}

.contacto-item-label {
  font-size: 13px;
  color: var(--gris-medio);
  margin-bottom: 2px;
}

.contacto-item-valor {
  font-size: 15px;
  font-weight: 500;
  color: var(--negro-texto);
}

.contacto-form {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radio);
  padding: 32px;
  box-shadow: var(--sombra);
}

.form-campo {
  margin-bottom: 20px;
}

.form-campo label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--negro-texto);
  margin-bottom: 6px;
}

.form-campo label .req { color: #DC2626; }

.form-campo input,
.form-campo select,
.form-campo textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--fuente);
  font-size: 15px;
  border: 1.5px solid var(--gris-claro);
  border-radius: var(--radio-sm);
  color: var(--negro-texto);
  background: var(--blanco);
  transition: border-color var(--transicion);
}

.form-campo input:focus,
.form-campo select:focus,
.form-campo textarea:focus {
  outline: none;
  border-color: var(--naranja);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.form-campo textarea {
  resize: vertical;
  min-height: 120px;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--gris-oscuro);
}

.form-check input {
  width: auto;
  margin-top: 3px;
}

/* ============================================
   TABLA COMPARATIVA
   ============================================ */
.tabla-comparativa {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra);
  background: var(--blanco);
}

.tabla-comparativa th,
.tabla-comparativa td {
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--gris-claro);
}

.tabla-comparativa thead th {
  background: var(--negro-texto);
  color: var(--blanco);
  font-weight: 600;
  font-size: 14px;
}

.tabla-comparativa thead th.destacado {
  background: var(--naranja);
  color: var(--blanco);
}

.tabla-comparativa tbody tr:hover {
  background: #F9FAFB;
}

.tabla-comparativa td:first-child {
  font-weight: 500;
  color: var(--negro-texto);
}

.tabla-comparativa td.check { color: var(--naranja-oscuro); font-weight: 700; }
.tabla-comparativa td.cross { color: #DC2626; }

/* ============================================
   CHANGELOG
   ============================================ */
.changelog-timeline {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.changelog-version {
  background: var(--blanco);
  border: 1px solid var(--gris-claro);
  border-radius: var(--radio);
  padding: 32px;
  position: relative;
}

.changelog-version.actual {
  border-color: var(--naranja);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.1);
}

.changelog-badge {
  display: inline-block;
  background: var(--naranja);
  color: var(--blanco);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}

.changelog-version-titulo {
  font-size: 20px;
  font-weight: 700;
  color: var(--negro-texto);
  margin-bottom: 8px;
}

.changelog-version-fecha {
  font-size: 14px;
  color: var(--gris-medio);
  margin-bottom: 20px;
}

.changelog-subtitulo {
  font-size: 14px;
  font-weight: 600;
  color: var(--naranja-oscuro);
  margin: 16px 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.changelog-lista {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.changelog-lista li {
  font-size: 14px;
  line-height: 1.5;
  color: var(--gris-oscuro);
  padding-left: 20px;
  position: relative;
}

.changelog-lista li::before {
  content: '•';
  color: var(--naranja);
  position: absolute;
  left: 0;
  font-weight: 700;
}

/* ============================================
   ANIMACIONES
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .pagina-hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .precios-grid { grid-template-columns: repeat(2, 1fr); }
  .funcionalidades-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contacto-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .header-nav { display: none; }
  .menu-toggle { display: block; }
  
  .header-inner { height: 64px; }
  
  .header-nav.activa {
    display: flex;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--blanco);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    z-index: 99;
  }
  
  .header-nav.activa .header-nav-lista {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  
  .header-nav.activa .header-nav-lista a {
    padding: 14px 0;
    border-bottom: 1px solid var(--gris-claro);
    font-size: 16px;
  }
  
  .hero { padding: 48px 0 64px; }
  .hero-titulo { font-size: 30px; }
  .hero-subtitulo { font-size: 16px; }
  
  .seccion { padding: 56px 0; }
  .seccion-titulo { font-size: 26px; }
  
  .soluciones-grid { grid-template-columns: 1fr; }
  .comparativa-grid { grid-template-columns: 1fr; }
  .funcionalidades-grid { grid-template-columns: 1fr; }
  .cifras-grid { grid-template-columns: 1fr; gap: 32px; }
  .precios-grid { grid-template-columns: 1fr; }
  .producto-preview-grid { grid-template-columns: 1fr; }
  
  .videos-grid { grid-template-columns: 1fr; }
  .videos-hero-titulo { font-size: 28px; }
  
  .pagina-hero-titulo { font-size: 28px; }
  
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-legal { flex-wrap: wrap; justify-content: center; gap: 12px; }
  
  .contenedor { padding: 0 20px; }
  .header-inner { padding: 0 20px; }
  
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; }
  
  .tabla-comparativa { font-size: 12px; }
  .tabla-comparativa th, .tabla-comparativa td { padding: 10px 8px; }
}

@media (max-width: 480px) {
  .hero-titulo { font-size: 26px; }
  .seccion-titulo { font-size: 22px; }
  .cta-final-titulo { font-size: 22px; }
  .video-principal-contenedor { padding-bottom: 56.25%; }
}