/*
 * ==========================================================
 * INDEX.CSS - ESTILOS PRINCIPALES DE LA PÁGINA
 * Clases Online de Programación - Joaquín Rodríguez
 * ==========================================================
 * Este archivo contiene todos los estilos personalizados
 * de la página principal (index.html).
 * 
 * ESTRUCTURA DEL ARCHIVO:
 * 1. Variables y configuración global
 * 2. Navegación (navbar)
 * 3. Fondo animado y tipografías
 * 4. Sección Hero (presentación)
 * 5. Tarjetas y efectos hover
 * 6. Modal de Login
 * 7. Botones flotantes
 * 8. Chat IA
 * 9. Footer
 * 10. Animaciones
 * 11. Responsive (media queries)
 * ==========================================================
 */


/* ============================================================
   1. SCROLL SUAVE Y CONFIGURACIÓN GLOBAL
   - scroll-behavior: permite transiciones suaves entre secciones
   ============================================================ */
html {
  scroll-behavior: smooth;
}

/* Reset del body para evitar padding innecesario */
body {
  margin: 0;
  padding: 0;
}


/* ============================================================
   2. NAVEGACIÓN (NAVBAR)
   - Estado activo con subrayado animado
   - Los enlaces activos se resaltan con color blanco y negrita
   ============================================================ */

/* Posición relativa para poder añadir el ::after */
.navbar .nav-link {
  position: relative;
}

/* Estilo del enlace activo: texto blanco y negrita */
.navbar .nav-link.active {
  color: #fff !important;
  font-weight: 600;
}

/* Subrayado animado debajo del enlace activo */
.navbar .nav-link.active::after {
  content: "";
  position: absolute;
  left: .5rem;
  right: .5rem;
  bottom: .2rem;
  height: 3px;
  background: var(--color-accent);
  border-radius: 3px;
  transform-origin: left;
  animation: underlineIn .25s ease;
}

/* Animación del subrayado: escala de 0 a 1 */
@keyframes underlineIn {
  from {
    transform: scaleX(0);
    opacity: .3;
  }
  to {
    transform: scaleX(1);
    opacity: 1;
  }
}


/* ============================================================
   3. ANCLA CON OFFSET PARA NAVBAR FIJA
   - Ya no necesitamos este hack gracias a scroll-margin-top
   - Comentado para evitar la barra negra
   ============================================================ */
/* ELIMINADO: Este código causaba la barra negra
section::before {
  content: "";
  display: block;
  height: 90px;
  margin-top: -90px;
  visibility: hidden;
}
*/


/* ============================================================
   4. FONDO ANIMADO Y TIPOGRAFÍAS
   - Gradiente diagonal animado como fondo del body
   - Usa la fuente Poppins para toda la página
   ============================================================ */
body {
  background: linear-gradient(-45deg, var(--color-primary-dark), var(--color-dark), var(--color-dark-soft), #1E3A5F);
  background-size: 400% 400%;
  animation: gradianteFondo 20s ease infinite;
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  padding-top: 70px; /* 🔥 ESPACIO PARA NAVBAR FIXED */
  color: var(--color-white);
  line-height: 1.6;
}

/* Animación del gradiente: mueve la posición del fondo */
@keyframes gradianteFondo {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}


/* ============================================================
   5. ICONOS CON EFECTO HOVER
   - Los iconos dentro de .icon-box rotan y escalan al pasar el ratón
   ============================================================ */
.icon-box i {
  transition: transform 0.3s ease;
}

.icon-box:hover i {
  transform: rotate(8deg) scale(1.2);
}


/* ============================================================
   6. SECCIÓN HERO (PRESENTACIÓN)
   - Estilo de la sección principal con título grande
   ============================================================ */
.hero {
  padding: 60px 20px 20px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: bold;
}

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  max-width: 900px;
  margin: auto;
}


/* ============================================================
   7. PIE DE PÁGINA BASE
   - Estilo básico del footer
   ============================================================ */
footer {
  padding: var(--space-8);
  text-align: center;
  background: var(--bg-section-dark);
  color: var(--color-gray-300);
}


/* ============================================================
   8. BOTONES FLOTANTES (WhatsApp, Chat, IA)
   - Posicionados fijos en la esquina inferior derecha
   - Cada botón tiene su color distintivo
   ============================================================ */

/* Contenedor de los botones flotantes */
#floating-buttons {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 1055;
}

/* Estilo base de cada icono flotante */
.floating-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  font-size: 24px;
  color: var(--color-white);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-bounce);
}

/* Efecto hover: agranda ligeramente el botón */
.floating-icon:hover {
  transform: scale(1.1) translateY(-3px);
}

/* Botón de WhatsApp - verde característico */
.whatsapp-icon {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
  transition: all var(--transition-bounce);
}

.whatsapp-icon:hover {
  transform: scale(1.12) translateY(-4px);
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45);
}

/* Botón de Chatbot - azul primario */
.chatbot-icon {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-bounce);
}

.chatbot-icon:hover {
  transform: scale(1.12) translateY(-4px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.45);
}

/* Botón de IA - Diseño elegante y limpio */
.ia-icon {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  box-shadow: var(--shadow-accent);
  transition: all var(--transition-bounce);
  position: relative;
  overflow: hidden;
  font-weight: 700;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Efecto sutil de brillo */
.ia-icon::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(255, 255, 255, 0.15) 50%,
    transparent 60%
  );
  animation: shimmerIcon 3s infinite;
  z-index: 1;
  pointer-events: none;
}

@keyframes shimmerIcon {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}

.ia-icon:hover {
  transform: scale(1.12) translateY(-4px);
  box-shadow: 0 12px 32px rgba(5, 150, 105, 0.45);
  border-color: rgba(255, 255, 255, 0.4);
}


/* ============================================================
   9. MODAL DE LOGIN
   - Estilos del modal de acceso a zona privada
   - Incluye estados de error y validación
   ============================================================ */

/* Contenido del modal con bordes redondeados y sombra */
.modal-elevated .modal-content {
  border: 0;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
}

/* Cabecera del modal con gradiente azul */
.modal-elevated .modal-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

/* Estilo del input enfocado */
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Botón para mostrar/ocultar contraseña */
.btn-eye {
  border: none;
  background: transparent;
  color: var(--color-gray-500);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.btn-eye:hover {
  color: var(--color-primary);
}

/* Mensaje de error con transición de fade */
.fade-error {
  display: none;
  transition: opacity var(--transition-base);
  opacity: 0;
}

.fade-error.show {
  display: block;
  opacity: 1;
}


/* ============================================================
   10. IMAGEN CON EFECTO HOVER (Presentación)
   - Contenedor que muestra dos imágenes superpuestas
   - Al pasar el ratón, se intercambia la imagen visible
   ============================================================ */

/* Contenedor de las imágenes */
.img-hover-container {
  position: relative;
  width: 100%;
  max-width: 400px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.1);
}

/* Estilo base de las imágenes */
.img-hover-container img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

/* Foto real: oculta por defecto, se muestra al hover */
.img-hover-container .real-photo {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transform: scale(1);
  z-index: 2;
}

/* Al hacer hover: muestra la foto real con zoom */
.img-hover-container:hover .real-photo {
  opacity: 1;
  transform: scale(1.08);
}

/* Al hacer hover: oculta la foto IA */
.img-hover-container:hover .ia-photo {
  opacity: 0;
  transform: scale(1.02);
}


/* ============================================================
   11. TARJETAS CON HOVER (card-hover)
   - Efecto de elevación y escala al pasar el ratón
   - Usado en múltiples secciones (cursos, beneficios, etc.)
   ============================================================ */
.card-hover {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  will-change: transform, box-shadow;
}

.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.course-card {
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
}

.course-card .card-body {
  padding: var(--space-6);
}

.course-card .card-title {
  margin-bottom: var(--space-2);
  color: var(--color-dark);
}

.course-card .card-text {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

.course-card .course-price {
  color: var(--color-accent);
  font-weight: 700;
}


/* ============================================================
   BADGES Y TÍTULOS DE SECCIÓN (section-badge, section-title)
   - Badges pequeños para etiquetas de sección
   - Títulos grandes y legibles
   ============================================================ */

.section-badge {
  display: inline-block;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

/* Variante light (para fondos oscuros) */
.section-badge-light {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(4px);
}

/* Variante warning (para masterclass) */
.section-badge-warning {
  background: #FEF3C7;
  color: #B45309;
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.15);
}

/* Variante accent */
.section-badge-accent {
  background: var(--color-accent-bg);
  color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.1);
}

/* Variante success (para bonos/ofertas) */
.section-badge-success {
  background: #D1FAE5;
  color: #059669;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.15);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  color: var(--color-dark) !important;
  letter-spacing: -0.5px;
}

/* Título en blanco para secciones oscuras */
.section-title.text-white {
  color: var(--color-white) !important;
}

/* Texto con opacidad para secciones oscuras */
.text-white-80 {
  color: rgba(255, 255, 255, 0.85) !important;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.8rem;
  }
}


/* ============================================================
   FEATURE CARDS (Tarjetas de características)
   - Usadas en sección "Por qué aprender conmigo"
   - Con icono de fondo coloreado
   ============================================================ */

.feature-card {
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-100) !important;
}

.feature-card:hover {
  border-color: var(--color-primary-light) !important;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: var(--radius-lg);
  margin-left: auto;
  margin-right: auto;
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

/* Colores de fondo para iconos */
.bg-primary-soft {
  background-color: var(--color-primary-soft) !important;
}

.bg-accent-soft {
  background-color: var(--color-accent-soft) !important;
}

.bg-warning-soft {
  background-color: #FEF3C7 !important;
}

.bg-dark-soft {
  background-color: var(--color-gray-100) !important;
}

.bg-info-soft {
  background-color: #CFF0F9 !important;
}


/* ============================================================
   STEP CARDS (Tarjetas de pasos - Cómo funciona)
   - Numeradas y con números grandes
   ============================================================ */

.step-card {
  position: relative;
  border: 1px solid var(--color-gray-100) !important;
  transition: all var(--transition-base);
}

.step-card:hover {
  border-color: var(--color-accent-light) !important;
  transform: translateY(-4px);
}

.step-number {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: var(--shadow-primary);
}


/* ============================================================
   BLOQUES DE EXPERIENCIA (experience-blocks)
   - Sección "Quién soy" con iconos y texto compacto
   ============================================================ */

.experience-blocks {
  position: relative;
}

.exp-block {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
}

.exp-block:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.exp-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
  font-size: 1.5rem;
}

.exp-block h6 {
  font-size: 0.95rem;
  line-height: 1.4;
}

.exp-block .text-muted {
  line-height: 1.5;
}


/* ============================================================
   HIGHLIGHT BOX (Caja de diferenciador)
   - Destaca el método diferente con fondo suave
   ============================================================ */

.highlight-box {
  background: var(--color-primary-soft) !important;
  border: 1px solid var(--color-primary-light) !important;
  transition: all var(--transition-base);
}

.highlight-box:hover {
  box-shadow: var(--shadow-primary);
  transform: translateY(-2px);
}

.highlight-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  font-size: 1.2rem;
}

.highlight-box h6 {
  color: var(--color-dark) !important;
}

.highlight-box p {
  color: var(--color-dark) !important;
}


/* ============================================================
   SECCIÓN "SOBRE MÍ" - DISEÑO MODERNO
   - Profile card con stats
   - Skills grid con tags
   - Key points con iconos
   - Differentiator quote
   ============================================================ */

/* Fondo blanco para la sección */
.section-white {
  background: var(--color-white) !important;
}

/* Profile Card Moderna */
.profile-card-modern {
  position: relative;
}

.profile-image-wrapper {
  position: relative;
  display: inline-block;
}

/* Stats debajo de la foto */
.profile-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-gray-100);
}

.stat-item {
  text-align: center;
  padding: 0 var(--space-2);
}

.stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-gray-200);
}

/* Título con gradiente */
.about-title {
  font-size: 2.2rem;
  color: var(--color-dark);
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Grid de skills/tecnologías */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-700);
  transition: all var(--transition-base);
}

.skill-tag:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.skill-tag i {
  font-size: 1rem;
  color: var(--color-gray-500);
  transition: color var(--transition-base);
}

.skill-tag:hover i {
  color: var(--color-primary);
}

/* Key Points - Puntos clave */
.key-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.key-point {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-primary);
  transition: all var(--transition-base);
}

.key-point:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.key-point-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  font-size: 1.1rem;
}

.key-point-icon.accent {
  background: var(--color-accent);
}

.key-point-icon.warning {
  background: var(--color-warning);
}

.key-point-content {
  display: flex;
  flex-direction: column;
}

.key-point-content strong {
  color: var(--color-dark);
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.key-point-content span {
  color: var(--color-gray-600);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* Differentiator Quote */
.differentiator-quote {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-soft));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-primary-light);
  position: relative;
  overflow: hidden;
}

.differentiator-quote::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.quote-icon {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  font-size: 1rem;
  padding-top: 10px;
}

.quote-content p {
  color: var(--color-dark);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

.quote-author {
  display: block;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: var(--space-2);
}

/* Responsive para móvil */
@media (max-width: 768px) {
  .about-title {
    font-size: 1.6rem;
  }
  
  .profile-stats {
    gap: var(--space-2);
    padding: var(--space-3);
  }
  
  .stat-number {
    font-size: 1.4rem;
  }
  
  .stat-label {
    font-size: 0.65rem;
  }
  
  .skills-grid {
    gap: var(--space-1);
  }
  
  .skill-tag {
    padding: var(--space-1) var(--space-2);
    font-size: 0.75rem;
  }
  
  .key-point {
    padding: var(--space-2);
  }
  
  .key-point-icon {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
  
  .differentiator-quote {
    padding: var(--space-3);
    flex-direction: column;
    text-align: center;
  }
  
  .quote-icon {
    margin: 0 auto;
  }
}

.promo-card {
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  border: none;
  overflow: hidden;
}

.promo-card-primary {
  background: linear-gradient(135deg, var(--color-accent-bg) 0%, var(--color-white) 100%);
  border-left: 4px solid var(--color-accent);
}

.promo-card-share {
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, var(--color-white) 100%);
  border-left: 4px solid var(--color-primary);
}

.promo-card .promo-badge {
  font-size: var(--font-size-sm);
  letter-spacing: 0.04em;
}

.promo-card .promo-title {
  font-size: var(--font-size-xl);
}

.demo-download-btn {
  border-radius: var(--radius-full);
  font-weight: 500;
}

.demo-download-btn i {
  font-size: 1.1rem;
}


/* ============================================================
   12. ANIMACIÓN DE PRECIO (Flash)
   - Efecto pulsante para destacar precios/ofertas
   ============================================================ */
@keyframes flash {
  0% {
    background-color: #198754;
    transform: scale(1);
  }
  50% {
    background-color: #20c997;
    transform: scale(1.05);
  }
  100% {
    background-color: #198754;
    transform: scale(1);
  }
}

.flash-animation {
  animation: flash 1.8s infinite ease-in-out alternate;
  transition: transform 0.3s ease;
}


/* ============================================================
   13. BENEFICIOS Y CAJAS DE PASO
   - Hover suave para elementos de beneficios
   - Cajas con borde lateral para pasos del proceso
   ============================================================ */

/* Hover en tarjetas de beneficios */
.benefit-hover {
  transition: transform var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}

.benefit-hover:hover {
  background-color: var(--color-primary-bg) !important;
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

/* Caja de paso con borde izquierdo azul */
.step-box {
  background-color: var(--color-gray-50);
  padding: var(--space-4);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}


/* ============================================================
   14. ESTRELLAS TIPO GOOGLE (Testimonios)
   - Color dorado para las estrellas de valoración
   ============================================================ */
.g-stars i {
  color: #fbbc04;
  font-size: 1.1rem;
}


/* ============================================================
   15. FOOTER MODERNO Y MEJORADO
   - Footer oscuro con estructura de grid
   - Secciones de información, cursos y contacto
   - Diseño responsivo y profesional
   ============================================================ */

/* Contenedor principal del footer */
.footer-modern {
  position: relative;
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-gray-300);
  overflow: hidden;
}

/* Efecto decorativo de fondo */
.footer-modern::before {
  content: "";
  position: absolute;
  top: 0;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, .08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Asegurar que el contenido esté encima del fondo */
.footer-modern > .container {
  position: relative;
  z-index: 1;
}

/* Secciones del footer */
.footer-section {
  position: relative;
}

/* Icono del footer */
.footer-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  flex-shrink: 0;
  box-shadow: var(--shadow-primary);
}

.footer-icon i {
  color: var(--color-white);
  font-size: 1.5rem;
}

/* Enlaces de secciones (cursos, etc) */
.footer-link-item {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  display: inline-block;
}

.footer-link-item::before {
  content: "→";
  position: absolute;
  left: -16px;
  opacity: 0;
  transition: all var(--transition-base);
  color: var(--color-accent);
}

.footer-link-item:hover {
  color: var(--color-accent);
}

.footer-link-item:hover::before {
  opacity: 1;
  left: -22px;
}

/* Enlaces de contacto */
.footer-contact-link {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
}

.footer-contact-link:hover {
  color: var(--color-white);
  transform: translateX(4px);
}

.footer-contact-link i {
  transition: all var(--transition-base);
}

.footer-contact-link:hover i {
  transform: scale(1.2);
}

/* Enlaces legales */
.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.footer-link-legal {
  color: var(--color-gray-400);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
}

.footer-link-legal:hover {
  color: var(--color-primary);
}

.footer-link-legal i {
  transition: all var(--transition-base);
}

.footer-link-legal:hover i {
  transform: rotate(10deg);
}

/* Divisor del footer */
.footer-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

/* Gradientes para cabeceras de modales */
.bg-gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%) !important;
}

.bg-gradient-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%) !important;
}

/* Contenido legal en modales */
.legal-content {
  font-size: 0.95rem;
  line-height: 1.7;
}

.legal-section {
  position: relative;
}

.legal-section ul {
  padding-left: 1.5rem;
}

.legal-section li {
  margin-bottom: 0.6rem;
  color: var(--color-gray-700);
}

.legal-section strong {
  color: var(--color-dark);
}

/* Shadow mejorado para modales */
.shadow-xl {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15), 0 8px 16px rgba(0, 0, 0, 0.08) !important;
}

/* Colores para badges en secciones legales */
.badge-modern {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: 0.5rem;
}

/* Responsive footer */
@media (max-width: 768px) {
  .footer-modern {
    text-align: center;
  }

  .footer-section {
    margin-bottom: 1.5rem;
  }

  .footer-icon {
    margin: 0 auto 1rem auto;
  }

  .footer-legal-links {
    justify-content: center;
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-link-legal {
    display: block;
  }
}

/* ============================================================
   FOOTER ANTIGUO (Compatibilidad - sin usar actualmente)
   ============================================================ */

/* Footer con gradiente oscuro */
.footer-gradient {
  position: relative;
  background: var(--bg-section-dark);
  color: var(--color-gray-300);
  overflow: hidden;
  display: none; /* Ocultado, usar footer-modern */
}

/* Efecto de luz radial decorativo */
.footer-gradient::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: 500px;
  height: 500px;
  background: radial-gradient(40% 40% at 70% 30%, rgba(37, 99, 235, .12) 0%, rgba(37, 99, 235, 0) 60%);
  pointer-events: none;
}

/* Pills de contacto (WhatsApp, Correo) */
.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, .06);
  transition: all var(--transition-fast);
  font-weight: 500;
  color: var(--color-white);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-pill:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, .12);
  text-decoration: none;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.2);
}

.contact-pill i {
  font-size: 1.1rem;
}

/* Línea separadora del footer */
.footer-hr {
  border-color: rgba(255, 255, 255, .08);
  opacity: 1;
}


/* ============================================================
   🎨 TARJETAS DE REVIEW/TESTIMONIOS - DISEÑO MEJORADO
   ============================================================ */
.card.review {
  background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  border-radius: 20px !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: none !important;
  position: relative;
  overflow: hidden;
  padding: 24px !important;
}

.card.review::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card.review::after {
  content: '\201C';
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.1;
  font-family: Georgia, serif;
  line-height: 1;
  pointer-events: none;
}

.card.review:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card.review:hover::before {
  opacity: 1;
}

.card.review strong {
  font-size: 1.1rem;
  color: var(--color-gray-800);
}

.card.review .badge {
  background: var(--color-gray-700) !important;
  color: white !important;
  font-weight: 600;
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: 20px;
}

.card.review p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-gray-600);
  font-style: italic;
}

.card.review small.text-muted {
  color: var(--color-gray-600) !important;
  font-weight: 600;
  font-size: 0.8rem;
}

/* ============================================================
   🎨 ESTRELLAS DE VALORACIÓN - DISEÑO MEJORADO
   ============================================================ */
.g-stars {
  display: flex;
  gap: 3px;
}

.g-stars i {
  color: #FFD700;
  font-size: 1.1rem;
  filter: drop-shadow(0 1px 2px rgba(255, 215, 0, 0.4));
  transition: transform 0.2s ease;
}

.card.review:hover .g-stars i {
  transform: scale(1.1);
}

.g-stars i.far {
  color: #e0e0e0;
  filter: none;
}

/* ============================================================
   🎨 FLECHAS DE NAVEGACIÓN DEL CARRUSEL
   ============================================================ */
#carouselTestimonios .carousel-control-prev,
#carouselTestimonios .carousel-control-next {
  width: 50px;
  height: 50px;
  top: 50%;
  transform: translateY(-50%);
  background: white;
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  opacity: 1;
  transition: all 0.3s ease;
}

#carouselTestimonios .carousel-control-prev {
  left: -25px;
}

#carouselTestimonios .carousel-control-next {
  right: -25px;
}

#carouselTestimonios .carousel-control-prev:hover,
#carouselTestimonios .carousel-control-next:hover {
  background: var(--color-gray-700);
  transform: translateY(-50%) scale(1.1);
}

.carousel-arrow-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--color-gray-700);
  font-size: 1.2rem;
  transition: color 0.3s ease;
}

#carouselTestimonios .carousel-control-prev:hover .carousel-arrow-icon,
#carouselTestimonios .carousel-control-next:hover .carousel-arrow-icon {
  color: white;
}

/* Indicadores del carrusel */
#carouselTestimonios .carousel-indicators {
  bottom: -40px;
}

#carouselTestimonios .carousel-indicators button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-gray-300);
  border: none;
  margin: 0 6px;
  transition: all 0.3s ease;
}

#carouselTestimonios .carousel-indicators button.active {
  background: var(--color-gray-700);
  transform: scale(1.2);
}

/* Responsive para flechas */
@media (max-width: 768px) {
  #carouselTestimonios .carousel-control-prev,
  #carouselTestimonios .carousel-control-next {
    width: 40px;
    height: 40px;
  }

  #carouselTestimonios .carousel-control-prev {
    left: 5px;
  }

  #carouselTestimonios .carousel-control-next {
    right: 5px;
  }

  .carousel-arrow-icon {
    font-size: 1rem;
  }
}


/* ============================================================
   16. CHAT IA - VENTANA DE CONVERSACIÓN
   - Contenedor flotante fijo para el chat con IA
   - Incluye cabecera, cuerpo de mensajes e input
   ============================================================ */

/* ========================================
   CONTENEDOR PRINCIPAL DEL CHAT
   ======================================== */
#chatIA.chat-container {
  position: fixed;
  bottom: 100px;
  right: 20px;
  width: 380px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 140px);
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  display: none;
  flex-direction: column;
  z-index: 10000;
  overflow: hidden;
  animation: chatSlideIn 0.3s ease-out;
  border: 1px solid var(--color-gray-100);
}

@keyframes chatSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ========================================
   CABECERA DEL CHAT
   ======================================== */
#chatIA .chat-header {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

/* Efecto brillante en la cabecera */
#chatIA .chat-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 60%
  );
  animation: shimmer 4s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}

#chatIA .chat-header-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  position: relative;
  z-index: 1;
}

#chatIA .chat-avatar {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 2px solid rgba(255, 255, 255, 0.25);
}

#chatIA .chat-header-text {
  display: flex;
  flex-direction: column;
}

#chatIA .chat-title {
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: 0.02em;
}

#chatIA .chat-subtitle {
  font-size: var(--font-size-xs);
  opacity: 0.9;
  display: flex;
  align-items: center;
  gap: 5px;
}

#chatIA .chat-subtitle::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #4ADE80;
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.3);
  animation: pulse-online 2s infinite;
}

@keyframes pulse-online {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

#chatIA .chat-close-btn {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--color-white);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  z-index: 1;
}

#chatIA .chat-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

/* ========================================
   BOTÓN DE EXPANDIR
   ======================================== */
#chatIA .chat-header-buttons {
  display: flex;
  gap: 8px;
  align-items: center;
}

#chatIA .chat-expand-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  z-index: 1;
  font-size: 1.1rem;
}

#chatIA .chat-expand-btn:hover {
  background: rgba(255, 255, 255, 0.35);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

/* ========================================
   MODO EXPANDIDO/MAXIMIZADO
   ======================================== */
#chatIA.chat-expanded {
  position: fixed;
  top: 10px;
  right: 10px;
  bottom: 10px;
  left: 10px;
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  border-radius: 24px;
  z-index: 10001;
  animation: expandChat 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 
    0 40px 100px rgba(22, 160, 133, 0.35),
    0 0 60px rgba(26, 204, 156, 0.25);
}

@keyframes expandChat {
  from {
    opacity: 0.9;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

#chatIA.chat-expanded .chat-body {
  min-height: calc(100vh - 220px);
  max-height: calc(100vh - 220px);
}

#chatIA.chat-expanded .chat-header {
  padding: 20px 24px;
}

#chatIA.chat-expanded .chat-title {
  font-size: 1.3rem;
}

#chatIA.chat-expanded .chat-avatar {
  width: 56px;
  height: 56px;
  font-size: 1.8rem;
}

/* ========================================
   CUERPO DEL CHAT (MENSAJES)
   ======================================== */
#chatIA .chat-body {
  flex: 1;
  padding: 20px;
  background: linear-gradient(180deg, #f8fafb 0%, #ffffff 100%);
  min-height: 280px;
  max-height: 350px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Scrollbar personalizado */
#chatIA .chat-body::-webkit-scrollbar {
  width: 6px;
}

#chatIA .chat-body::-webkit-scrollbar-track {
  background: transparent;
}

#chatIA .chat-body::-webkit-scrollbar-thumb {
  background: rgba(22, 160, 133, 0.3);
  border-radius: 10px;
}

#chatIA .chat-body::-webkit-scrollbar-thumb:hover {
  background: rgba(22, 160, 133, 0.5);
}

/* ========================================
   MENSAJES DEL CHAT
   ======================================== */
#chatIA .chat-msg {
  max-width: 88%;
  padding: 14px 18px;
  border-radius: 18px;
  font-size: 0.95rem;
  line-height: 1.5;
  word-break: break-word;
  animation: messageIn 0.3s ease-out;
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mensaje del USUARIO */
#chatIA .chat-msg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  border-bottom-right-radius: 6px;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Mensaje del BOT */
#chatIA .chat-msg.bot {
  align-self: flex-start;
  background: #ffffff;
  color: #333;
  border: 1px solid #e8e8e8;
  border-bottom-left-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

#chatIA .chat-msg.bot strong {
  color: #16a085;
}

/* ========================================
   ELEMENTOS ESPECIALES EN MENSAJES
   ======================================== */

/* Caja de precios */
#chatIA .faq-price-box {
  margin: 15px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#chatIA .faq-price-item {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 12px 16px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border: 1px solid #e0e0e0;
  transition: transform 0.2s, box-shadow 0.2s;
}

#chatIA .faq-price-item:hover {
  transform: translateX(5px);
}

#chatIA .faq-price-item.highlight {
  background: linear-gradient(135deg, #d5f4e6 0%, #b8f0d8 100%);
  border-color: #16a085;
  box-shadow: 0 4px 12px rgba(22, 160, 133, 0.2);
}

#chatIA .faq-price-label {
  font-weight: 600;
  color: #333;
}

#chatIA .faq-price-value {
  font-weight: 700;
  font-size: 1.1rem;
  color: #16a085;
}

#chatIA .faq-price-value small {
  font-size: 0.8rem;
  color: #666;
}

#chatIA .faq-price-badge {
  background: #ff6b6b;
  color: #fff;
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 600;
  animation: pulseBadge 2s infinite;
}

@keyframes pulseBadge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Grid de cursos */
#chatIA .faq-courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 15px 0;
}

#chatIA .faq-course {
  background: linear-gradient(135deg, #f0f4f8 0%, #e8ecf0 100%);
  padding: 10px 8px;
  border-radius: 10px;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: #444;
  border: 1px solid #ddd;
  transition: all 0.2s;
}

#chatIA .faq-course i {
  display: block;
  font-size: 1.3rem;
  margin-bottom: 5px;
  color: #16a085;
}

#chatIA .faq-course:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-color: #16a085;
}

/* Caja de contacto */
#chatIA .faq-contact-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 15px 0;
}

#chatIA .faq-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.2s;
  font-weight: 500;
}

#chatIA .faq-contact-item.whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: #fff;
}

#chatIA .faq-contact-item.whatsapp:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

#chatIA .faq-contact-item.email {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

#chatIA .faq-contact-item.email:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

#chatIA .faq-contact-item i {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}

/* Testimonios */
#chatIA .faq-testimonial {
  background: linear-gradient(135deg, #fef9e7 0%, #fcf3cf 100%);
  border: 1px solid #f7dc6f;
  border-radius: 12px;
  padding: 14px;
  margin: 12px 0;
}

#chatIA .faq-stars {
  color: #f1c40f;
  font-size: 0.95rem;
  margin-bottom: 8px;
}

#chatIA .faq-testimonial p {
  font-style: italic;
  color: #555;
  margin: 0 0 8px 0;
  font-size: 0.9rem;
}

#chatIA .faq-author {
  font-weight: 600;
  color: #16a085;
  font-size: 0.85rem;
}

/* ========================================
   BOTONES RÁPIDOS
   ======================================== */
#chatIA .chat-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding: var(--space-1) 0;
}

#chatIA .chat-quick-btn {
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

#chatIA .chat-quick-btn:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

#chatIA .chat-quick-btn:active {
  transform: translateY(0);
}

/* ========================================
   ÁREA DE INPUT
   ======================================== */
#chatIA .chat-input-area {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-100);
}

#chatIA .chat-input-area textarea {
  flex: 1;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-3xl);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-family: inherit;
  resize: none;
  min-height: 48px;
  max-height: 100px;
  line-height: 1.4;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

#chatIA .chat-input-area textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

#chatIA .chat-input-area textarea::placeholder {
  color: var(--color-gray-400);
}

#chatIA .chat-send-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  border: none;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

#chatIA .chat-send-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-accent);
}

#chatIA .chat-send-btn:active {
  transform: scale(0.95);
}

/* ========================================
   PIE DEL CHAT
   ======================================== */
#chatIA .chat-powered {
  text-align: center;
  padding: 10px;
  font-size: 0.75rem;
  color: #999;
  background: #fafafa;
  border-bottom-left-radius: 20px;
  border-bottom-right-radius: 20px;
  border-top: 1px solid #f0f0f0;
}

#chatIA .chat-powered i {
  color: #f1c40f;
  margin-right: 5px;
}

/* ========================================
   RESPONSIVE - MÓVIL
   ======================================== */
@media (max-width: 480px) {
  #chatIA.chat-container {
    bottom: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    border-radius: 0;
  }
  
  #chatIA .chat-header {
    border-radius: 0;
    padding: 14px 16px;
  }
  
  #chatIA .chat-body {
    max-height: none;
    flex: 1;
  }
  
  #chatIA .faq-courses-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  #chatIA .chat-powered {
    border-radius: 0;
  }
}


/* ============================================================
   17. ANIMACIÓN DE PULSO (Ofertas)
   - Efecto de pulso para iconos de oferta
   ============================================================ */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
}


/* ============================================================
   18. RESPONSIVE - MÓVIL
   - Ajustes para pantallas pequeñas
   ============================================================ */

/* Ajustes para la demo de descargas en móvil */
@media (max-width: 767.98px) {
  .demo-mobile .row.mb-3,
  .demo-mobile .mb-5.text-center[data-aos="zoom-in"] {
    margin-bottom: 1.2rem !important;
  }

  .demo-mobile .mb-5.text-center[data-aos="zoom-in"] button {
    font-size: 1rem;
    padding: 0.7rem 1.2rem;
    border-radius: 1.5rem;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    display: block;
  }

  .demo-mobile .mb-5.text-center[data-aos="zoom-in"] p {
    font-size: 0.95em;
    margin-top: 0.7rem;
  }

  .demo-mobile .row.mb-3 .col {
    flex: 1 1 45%;
    max-width: 48%;
    margin-bottom: 0.7rem;
    padding: 0 2px;
  }

  .demo-mobile .row.mb-3 .btn {
    font-size: 0.97em;
    padding: 0.5rem 0.2rem;
    min-width: 0;
  }

  .demo-mobile .btn-link {
    font-size: 0.97em;
    padding: 0.2rem 0.5rem;
  }

  .demo-mobile .p-4.shadow.card-hover.bg-white.rounded-4 {
    padding: 1.2rem 0.5rem !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07) !important;
    border-radius: 1.1rem !important;
  }
}

/* Flecha entre pasos: rota en móvil */
@media (max-width: 768px) {
  .fa-arrow-right {
    transform: rotate(90deg);
    margin: 20px 0;
  }
}

/* ============================================================
   🎨 SISTEMA DE DISEÑO UNIFICADO
   ============================================================
   Paleta de colores racionalizada para coherencia visual
   ============================================================ */
:root {
  /* === COLORES PRIMARIOS === */
  --color-primary: #2563EB;
  --color-primary-light: #3B82F6;
  --color-primary-dark: #1D4ED8;
  --color-primary-soft: #DBEAFE;
  --color-primary-bg: #EFF6FF;
  
  /* === COLORES SECUNDARIOS (Acento) === */
  --color-accent: #059669;
  --color-accent-light: #10B981;
  --color-accent-dark: #047857;
  --color-accent-soft: #D1FAE5;
  --color-accent-bg: #ECFDF5;
  
  /* === COLORES NEUTROS === */
  --color-dark: #0F172A;
  --color-dark-soft: #1E293B;
  --color-gray-900: #111827;
  --color-gray-700: #374151;
  --color-gray-600: #4B5563;
  --color-gray-500: #6B7280;
  --color-gray-400: #9CA3AF;
  --color-gray-300: #D1D5DB;
  --color-gray-200: #E5E7EB;
  --color-gray-100: #F3F4F6;
  --color-gray-50: #F9FAFB;
  --color-white: #FFFFFF;
  
  /* === COLORES DE ESTADO === */
  --color-success: #059669;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-info: #0284C7;
  
  /* === SISTEMA DE SOMBRAS === */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
  --shadow-primary: 0 8px 24px rgba(37, 99, 235, 0.25);
  --shadow-accent: 0 8px 24px rgba(5, 150, 105, 0.25);
  
  /* === BORDER RADIUS === */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-3xl: 24px;
  --radius-full: 9999px;
  
  /* === ESPACIADO === */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  
  /* === TIPOGRAFÍA === */
  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* === TRANSICIONES === */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.35s ease;
  --transition-bounce: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* === FONDOS DE SECCIONES === */
  --bg-section-white: var(--color-white);
  --bg-section-light: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  --bg-section-primary: linear-gradient(135deg, var(--color-primary-bg) 0%, var(--color-white) 100%);
  --bg-section-accent: linear-gradient(135deg, var(--color-accent-bg) 0%, var(--color-white) 100%);
  --bg-section-highlight: linear-gradient(135deg, #F0F9FF 0%, #ECFEFF 50%, #F0FDF4 100%);
  --bg-section-dark: linear-gradient(180deg, var(--color-dark-soft) 0%, var(--color-dark) 100%);
}
.navbar-main {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f766e 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  /* 🔥 FIX CRÍTICO PARA NAVBAR FIJA */
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  z-index: 9999 !important;
  margin: 0 !important;
  padding: 0.5rem 0 !important;
}

.navbar-main .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-main .navbar-brand .brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #10b981 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.4);
}

.navbar-main .navbar-brand span {
  letter-spacing: .03em;
}

.navbar-main .nav-link {
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-fast);
}

.navbar-main .nav-link:hover {
  color: var(--color-white);
}

.text-accent {
  color: var(--color-accent) !important;
}

.badge-accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* ============================================================
   🎨 CLASES DE UTILIDAD PARA FONDOS DE SECCIONES
   ============================================================ */
.section-white {
  background: var(--bg-section-white);
}

.section-light {
  background: var(--bg-section-light);
}

.section-primary {
  background: var(--bg-section-primary);
}

.section-accent {
  background: var(--bg-section-accent);
}

.section-highlight {
  background: var(--bg-section-highlight);
}

.section-dark {
  background: var(--bg-section-dark);
  color: var(--color-gray-300);
}

/* ============================================================
   🎨 CLASES PARA TARJETAS MEJORADAS
   ============================================================ */
.card-elevated {
  background: var(--color-white);
  border: none;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-elevated:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.card-glass {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

/* ============================================================
   🎨 BOTONES CON JERARQUÍA CLARA
   ============================================================ */
.btn-cta-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-bounce);
}

.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.35);
  color: var(--color-white);
}

.btn-cta-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  box-shadow: var(--shadow-accent);
  transition: all var(--transition-bounce);
}

.btn-cta-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(5, 150, 105, 0.35);
  color: var(--color-white);
}


/* ============================================================
   BOTONES DE DESCARGA (Download Buttons)
   - Usados en sección Demo para descargar clases
   ============================================================ */

.download-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: all var(--transition-base);
  min-height: 100px;
}

.download-btn i {
  font-size: 2rem;
  transition: all var(--transition-base);
}

.download-btn span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gray-700);
}

.download-btn:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.download-btn:hover i {
  transform: scale(1.15);
}

/* Variantes de color */
.download-btn-java {
  border-color: #E76F00;
}
.download-btn-java i {
  color: #E76F00;
}
.download-btn-java:hover {
  background: #FFF5EB;
  border-color: #E76F00;
}

.download-btn-info {
  border-color: var(--color-info);
}
.download-btn-info i {
  color: var(--color-info);
}
.download-btn-info:hover {
  background: #E0F7FA;
  border-color: var(--color-info);
}

.download-btn-web {
  border-color: #E44D26;
}
.download-btn-web i {
  color: #E44D26;
}
.download-btn-web:hover {
  background: #FFF0ED;
  border-color: #E44D26;
}

.download-btn-python {
  border-color: var(--color-accent);
}
.download-btn-python i {
  color: var(--color-accent);
}
.download-btn-python:hover {
  background: var(--color-accent-bg);
  border-color: var(--color-accent);
}


.btn-outline-modern {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  transition: all var(--transition-base);
}

.btn-outline-modern:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* ===================== COURSE CARDS MEJORADAS ===================== */
.course-card {
  background: var(--color-white);
  border-radius: var(--radius-xl) !important;
  border: 1px solid var(--color-gray-200) !important;
  transition: all var(--transition-base);
  overflow: hidden;
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-100) !important;
}

.course-card .card-body {
  padding: var(--space-6);
}

/* Icono circular de curso */
.course-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  font-size: 1.75rem;
  transition: all var(--transition-base);
}

.course-card:hover .course-icon-wrapper {
  transform: scale(1.1);
}

/* Variantes de color para iconos de curso */
.course-icon-web {
  background: linear-gradient(135deg, #fff5f3 0%, #ffe8e5 100%);
  color: #E44D26;
}

.course-icon-java {
  background: linear-gradient(135deg, #fff8f0 0%, #ffe8d5 100%);
  color: #E76F00;
}

.course-icon-python {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  color: var(--color-accent);
}

.course-icon-sql {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: var(--color-primary);
}

.course-icon-ai {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  color: var(--color-info);
}

.course-icon-vue {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  color: #42b883;
}

/* Nuevos iconos de cursos */
.course-icon-angular {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  color: #DD0031;
}

.course-icon-git {
  background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
  color: #F05032;
}

.course-icon-kotlin {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  color: #3DDC84;
}

.course-icon-php {
  background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
  color: #777BB4;
}

.course-icon-psp {
  background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
  color: #0d9488;
}

.course-icon-dam {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #d97706;
}

/* Precio destacado en curso - DISEÑO ELEGANTE */
.course-price {
  display: inline-block;
  background: #f8fafc;
  color: #059669;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 700;
  font-size: 1rem;
  margin-top: var(--space-3);
  border: 2px solid #059669;
  transition: all 0.2s ease;
}

.course-price:hover {
  background: #059669;
  color: white;
}

/* ============================================================
   🌟 SECCIÓN DE OPINIONES / TESTIMONIOS
   ============================================================ */

/* Stats pills */
.stats-pill {
  display: inline-flex;
  align-items: center;
  background: white;
  padding: 12px 20px;
  border-radius: 50px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  font-size: 0.95rem;
}

/* Formulario de opinión */
.opinion-form-card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  overflow: hidden;
  border: 1px solid #e2e8f0;
}

.opinion-form-header {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f766e 100%);
  color: white;
  padding: 16px 24px;
  font-weight: 600;
  font-size: 1.1rem;
}

.opinion-form-body {
  padding: 24px;
}

/* Estrellas clickables */
.star-rating {
  display: flex;
  gap: 8px;
  font-size: 1.8rem;
}

.star-rating i {
  color: #fbbf24;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.star-rating i:hover {
  transform: scale(1.2);
}

.star-rating i.fas {
  color: #fbbf24;
}

.star-rating i.far {
  color: #d1d5db;
}

/* Título de curso */
.course-card .card-title {
  color: var(--color-gray-900);
  font-size: 1.15rem;
  margin-bottom: var(--space-2);
}

.course-card .card-text {
  color: var(--color-gray-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================================
   🎨 BADGES MEJORADOS
   ============================================================ */
.badge-modern {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-sm);
  letter-spacing: 0.02em;
}

.badge-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}

.badge-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
}

.badge-warning {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  color: var(--color-white);
}

/* ============================================================
   🎨 ICONOS BOX MEJORADOS
   ============================================================ */
.icon-box-modern {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  font-size: 1.5rem;
  transition: all var(--transition-base);
}

.icon-box-primary {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.icon-box-accent {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.icon-box-warning {
  background: #FEF3C7;
  color: var(--color-warning);
}

/* ============================================================
   🎨 TEXTOS CON COLORES CONSISTENTES
   ============================================================ */
.text-primary-modern {
  color: var(--color-primary) !important;
}

.text-accent-modern {
  color: var(--color-accent) !important;
}

.text-muted-modern {
  color: var(--color-gray-600) !important;
}

.text-dark-modern {
  color: var(--color-dark) !important;
}

/* ============================================================
   🎨 MEJORAS RESPONSIVE GLOBALES
   ============================================================ */
@media (max-width: 991.98px) {
  :root {
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .section-primary,
  .section-light,
  .section-accent,
  .section-highlight {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

@media (max-width: 767.98px) {
  :root {
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
  }
  
  .hero {
    padding: var(--space-8) var(--space-4);
  }
  
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .card-hover:hover {
    transform: translateY(-3px);
  }
  
  .course-card .card-body {
    padding: var(--space-4);
  }
  
  #floating-buttons {
    bottom: var(--space-4);
    right: var(--space-4);
  }
  
  .floating-icon {
    width: 52px;
    height: 52px;
    font-size: 22px;
  }
  
  .promo-card .card-body {
    padding: var(--space-4) !important;
  }
}

@media (max-width: 575.98px) {
  .btn-cta-primary,
  .btn-cta-accent {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
  }
  
  .badge-modern {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
  }
}

/* ============================================================
   🎨 ANIMACIÓN FLASH MEJORADA
   ============================================================ */
@keyframes flash {
  0% {
    background-color: var(--color-accent);
    transform: scale(1);
  }
  50% {
    background-color: var(--color-accent-light);
    transform: scale(1.03);
  }
  100% {
    background-color: var(--color-accent);
    transform: scale(1);
  }
}

.flash-animation {
  animation: flash 2s infinite ease-in-out;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%) !important;
}

/* ============================================================
   🎨 FOCUS STATES ACCESIBLES
   ============================================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

/* ============================================================
   🎨 MEJORAS DE RENDIMIENTO
   ============================================================ */
.card-hover,
.floating-icon,
.btn,
.nav-link {
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   🎨 BOTONES MODERNOS PARA FORMULARIOS
   ============================================================ */

/* Botón WhatsApp moderno */
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.btn-whatsapp:hover {
  background: linear-gradient(135deg, #128C7E 0%, #075E54 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

.btn-whatsapp:active {
  transform: translateY(0);
}

/* Botón Email moderno */
.btn-email {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.btn-email:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #1d4ed8 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

/* Botón Modal - Login */
.btn-modal-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-5);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-modal-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #1d4ed8 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Botón cerrar modal */
.btn-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-gray-100);
  color: var(--color-gray-600);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-modal-close:hover {
  background: var(--color-gray-200);
  color: var(--color-gray-700);
}

/* Botón aceptar términos */
.btn-accept {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-accept:hover {
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, #047857 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ============================================================
   🎨 TARJETAS DE PROMOCIÓN MEJORADAS
   ============================================================ */
.promo-card-modern {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: all var(--transition-base);
}

.promo-card-modern:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.promo-header {
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.promo-header-gift {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.promo-header-share {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.promo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.promo-icon-gift {
  background: var(--color-accent);
  color: var(--color-white);
}

.promo-icon-share {
  background: var(--color-warning);
  color: var(--color-white);
}

.promo-title {
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
}

.promo-title-gift {
  color: var(--color-accent-dark);
}

.promo-title-share {
  color: #92400e;
}

.promo-body {
  padding: var(--space-5);
  text-align: center;
}

.promo-highlight {
  display: inline-block;
  background: var(--color-accent-bg);
  color: var(--color-accent);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: var(--space-3);
}

.promo-highlight-warning {
  background: #fef3c7;
  color: #92400e;
}

/* ============================================================
   🎨 CURSO DESTACADO MEJORADO
   ============================================================ */
.featured-course {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
}

.featured-course-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-5) var(--space-6);
  color: var(--color-white);
}

.featured-course-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

.featured-course-body {
  padding: var(--space-6);
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-4);
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

.tech-badge i {
  font-size: 1rem;
}

.featured-benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin: var(--space-5) 0;
}

@media (max-width: 767px) {
  .featured-benefits {
    grid-template-columns: 1fr;
  }
}

.featured-benefit {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
}

.featured-benefit i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.featured-benefit span {
  font-size: 0.9rem;
  color: var(--color-gray-700);
}

.featured-price {
  text-align: center;
  padding: var(--space-5);
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-radius: var(--radius-xl);
  margin-top: var(--space-4);
}

.featured-price-value {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.featured-price-label {
  font-size: 0.9rem;
  color: var(--color-gray-600);
  margin-top: var(--space-2);
}

/* ============================================================
   🚀 CURSO COMPLETO - DISEÑO PREMIUM
   ============================================================ */
.featured-course-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.featured-course-header-new {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f766e 100%);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

.featured-course-header-new::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.featured-header-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: white;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-3);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.featured-main-title {
  color: white;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.featured-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  margin: 0;
}

.featured-course-content {
  padding: var(--space-6);
}

/* Tecnologías */
.featured-tech-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-gray-100);
}

.featured-tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.featured-tech-item i {
  font-size: 2rem;
}

.featured-tech-item i.fa-html5 { color: #E34F26; }
.featured-tech-item i.fa-css3-alt { color: #1572B6; }
.featured-tech-item i.fa-js-square { color: #F7DF1E; }
.featured-tech-item i.fa-bootstrap { color: #7952B3; }
.featured-tech-item i.fa-robot { color: #10b981; }

.featured-tech-item span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-gray-600);
}

/* Grid de beneficios */
.featured-benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

@media (max-width: 768px) {
  .featured-benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .featured-main-title {
    font-size: 1.5rem;
  }
}

.featured-benefit-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-gray-50);
  border-radius: var(--radius-xl);
  transition: all var(--transition-normal);
}

.featured-benefit-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
  flex-shrink: 0;
}

.benefit-icon-blue { background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%); }
.benefit-icon-purple { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }
.benefit-icon-teal { background: linear-gradient(135deg, #00C7B7 0%, #00A99D 100%); }
.benefit-icon-green { background: linear-gradient(135deg, #10b981 0%, #059669 100%); }

.benefit-text {
  display: flex;
  flex-direction: column;
}

.benefit-text strong {
  font-size: 0.95rem;
  color: var(--color-dark);
}

.benefit-text span {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

/* Footer con precio */
.featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-gray-100);
  flex-wrap: wrap;
}

@media (max-width: 576px) {
  .featured-footer {
    flex-direction: column;
    text-align: center;
  }
}

.featured-price-box {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.price-tag {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.price-detail {
  font-size: 0.9rem;
  color: var(--color-gray-500);
}

.featured-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 16px 32px;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: white;
  border-radius: var(--radius-xl);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.35);
}

.featured-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.45);
  color: white;
}

/* ============================================================
   🎁 TARJETAS PROMO MODERNAS
   ============================================================ */
.promo-card-modern {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  text-align: center;
  position: relative;
  border: 2px solid transparent;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.promo-card-modern:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}

.promo-card-gift {
  border-color: var(--color-accent);
  background: linear-gradient(135deg, #f0fdf4 0%, var(--color-white) 100%);
}

.promo-card-referral {
  border-color: var(--color-warning);
  background: linear-gradient(135deg, #fffbeb 0%, var(--color-white) 100%);
}

.promo-card-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent) 0%, #10b981 100%);
  color: var(--color-white);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  box-shadow: 0 8px 20px rgba(5, 150, 105, 0.3);
}

.promo-icon-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.promo-card-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-3);
}

.promo-badge-warning {
  background: var(--color-warning);
  color: #78350f;
}

.promo-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--space-3);
}

.promo-card-text {
  color: var(--color-gray-600);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.promo-card-text strong {
  color: var(--color-accent);
}

.promo-card-referral .promo-card-text strong {
  color: #d97706;
}

.promo-card-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-5);
  text-align: left;
}

.promo-card-features li {
  padding: 8px 0;
  color: var(--color-gray-700);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.promo-card-features li i {
  color: var(--color-accent);
  font-size: 0.85rem;
}

.promo-card-referral .promo-card-features li i {
  color: #d97706;
}

.promo-textarea {
  width: 100%;
  margin-top: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--color-gray-600);
  background: var(--color-gray-50);
  resize: none;
  text-align: center;
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-xl);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* ============================================================
   🎨 BONO MEJORADO
   ============================================================ */
.bono-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 2px solid var(--color-accent);
  overflow: hidden;
  position: relative;
}

.bono-ribbon {
  position: absolute;
  top: 20px;
  right: -35px;
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-1) var(--space-8);
  font-size: 0.8rem;
  font-weight: 700;
  transform: rotate(45deg);
  box-shadow: var(--shadow-md);
}

.bono-header {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  padding: var(--space-5) var(--space-6);
  text-align: center;
  color: var(--color-white);
}

.bono-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0;
}

.bono-price-container {
  padding: var(--space-5);
  text-align: center;
  border-bottom: 1px solid var(--color-gray-200);
}

.bono-price {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-gray-900);
  line-height: 1;
}

.bono-price-details {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.bono-detail {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
}

.bono-detail-price {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

.bono-detail-time {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.bono-body {
  padding: var(--space-5) var(--space-6);
  text-align: center;
}

.bono-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.bono-feature {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-gray-600);
}

.bono-feature i {
  color: var(--color-accent);
}

/* Bono card style simplificado */
.bono-card-style {
  background: linear-gradient(135deg, #f0fdf4 0%, var(--color-white) 100%);
  border: 2px solid var(--color-accent) !important;
  border-radius: var(--radius-2xl) !important;
}

/* ============================================================
   💻 SECCIÓN PRÁCTICA INTERACTIVA
   ============================================================ */
.practice-container {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
}

/* Pestañas */
.practice-tabs {
  display: flex;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  padding: 0;
  border: none;
  gap: 0;
}

.practice-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 24px;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.practice-tab i {
  font-size: 1.4rem;
}

.practice-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.practice-tab.active {
  background: var(--color-white);
  color: var(--color-dark);
}

.practice-tab.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
}

/* Java tab activo */
#java-tab.active { color: #E76F00; }
#java-tab.active::after { background: #E76F00; }

/* Python tab activo */
#python-tab.active { color: #3776AB; }
#python-tab.active::after { background: #3776AB; }

/* Web tab activo */
#web-tab.active { color: #E34F26; }
#web-tab.active::after { background: #E34F26; }

/* Contenido del panel */
.practice-content {
  background: var(--color-white);
}

.practice-panel {
  display: grid;
  grid-template-columns: 350px 1fr;
  min-height: 550px;
}

@media (max-width: 992px) {
  .practice-panel {
    grid-template-columns: 1fr;
  }
}

/* Sidebar con el reto */
.practice-challenge {
  background: var(--color-gray-50);
  padding: var(--space-5);
  border-right: 1px solid var(--color-gray-200);
  overflow-y: auto;
  max-height: 550px;
}

.challenge-header {
  margin-bottom: var(--space-4);
}

.challenge-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: linear-gradient(135deg, #E76F00 0%, #F89820 100%);
  color: white;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.challenge-badge-python {
  background: linear-gradient(135deg, #3776AB 0%, #4B8BBE 100%);
}

.challenge-badge-web {
  background: linear-gradient(135deg, #E34F26 0%, #F06529 100%);
}

.challenge-text {
  color: var(--color-gray-700);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

/* Código de ayuda */
.challenge-code {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 15px;
  background: linear-gradient(135deg, #E76F00 0%, #F89820 100%);
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
}

.code-header-python {
  background: linear-gradient(135deg, #3776AB 0%, #4B8BBE 100%);
}

.code-header-web {
  background: linear-gradient(135deg, #E34F26 0%, #F06529 100%);
}

.btn-copy-code {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 6px;
  color: white;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.btn-copy-code:hover {
  background: rgba(255, 255, 255, 0.3);
}

.challenge-code pre {
  margin: 0;
  padding: var(--space-4);
  background: #1e1e1e;
  color: #d4d4d4;
  font-size: 0.8rem;
  line-height: 1.5;
  overflow-x: auto;
  max-height: 280px;
}

.challenge-code code {
  font-family: 'Fira Code', 'Consolas', monospace;
}

/* Editor embebido */
.practice-editor {
  display: flex;
  flex-direction: column;
}

.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: linear-gradient(135deg, #E76F00 0%, #F89820 100%);
  color: white;
  font-weight: 600;
}

.editor-header-python {
  background: linear-gradient(135deg, #3776AB 0%, #4B8BBE 100%);
}

.editor-header-web {
  background: linear-gradient(135deg, #E34F26 0%, #F06529 100%);
}

.btn-external {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.85rem;
  transition: background var(--transition-fast);
}

.btn-external:hover {
  background: rgba(255, 255, 255, 0.3);
  color: white;
}

.editor-frame {
  flex: 1;
  min-height: 500px;
}

.editor-frame iframe {
  width: 100%;
  height: 100%;
  min-height: 500px;
  border: none;
}

@media (max-width: 768px) {
  .practice-tabs {
    flex-direction: column;
  }
  
  .practice-tab {
    padding: 14px 20px;
    justify-content: flex-start;
  }
  
  .practice-challenge {
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--color-gray-200);
  }
  
  .editor-frame {
    min-height: 400px;
  }
  
  .editor-frame iframe {
    min-height: 400px;
  }
}


/* ============================================================
   🔥 MEGA FIX - RESPONSIVE MÓVIL COMPLETO
   ============================================================
   Todas las correcciones para dispositivos móviles
   Organizado por breakpoints: 992px, 768px, 576px, 480px
   ============================================================ */

/* ============================================================
   📱 TABLETS Y MÓVILES GRANDES (< 992px)
   ============================================================ */
@media (max-width: 991.98px) {
  /* RESET de navbar */
  .navbar-main {
    padding: 0.5rem 0 !important;
    position: fixed !important;
    top: 0 !important;
    z-index: 9999 !important;
  }
  
  .navbar-main .navbar-brand {
    font-size: 0.95rem;
    padding: 0 0.5rem;
  }
  
  .navbar-main .navbar-brand .brand-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  
  /* Menú desplegable en móvil */
  .navbar-collapse {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    border-radius: 0 0 16px 16px;
    padding: 16px;
    margin-top: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
  
  .navbar-nav .nav-link {
    padding: 12px 16px !important;
    border-radius: 8px;
    margin: 2px 0;
    transition: background 0.2s ease;
  }
  
  .navbar-nav .nav-link:hover,
  .navbar-nav .nav-link:focus {
    background: rgba(255, 255, 255, 0.1);
  }
  
  /* Hero section más compacto */
  .hero {
    padding: 40px 16px 16px;
  }
  
  /* Secciones con menos padding */
  section {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
  
  /* Títulos de sección más pequeños */
  .section-title {
    font-size: 1.75rem !important;
  }
  
  /* Cards en 2 columnas */
  .course-card {
    margin-bottom: 16px;
  }
  
  /* Botones flotantes más pequeños */
  #floating-buttons {
    bottom: 16px;
    right: 16px;
    gap: 10px;
  }
  
  .floating-icon {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }
}

/* ============================================================
   📱 MÓVILES MEDIANOS (< 768px)
   ============================================================ */
@media (max-width: 767.98px) {
  /* Body ajustes */
  body {
    font-size: 15px;
    line-height: 1.5;
    padding-top: 65px; /* Navbar más pequeña en móvil */
  }
  
  /* Navbar más compacta */
  .navbar-main {
    padding: 0.4rem 0 !important;
    position: fixed !important;
    top: 0 !important;
    z-index: 9999 !important;
  }
  
  .navbar-main .container {
    padding-left: 12px;
    padding-right: 12px;
  }
  
  .navbar-main .navbar-brand span {
    font-size: 0.95rem;
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .navbar-main .navbar-brand .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
    border-radius: 8px;
  }
  
  /* Toggler más visible */
  .navbar-toggler {
    padding: 6px 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
  }
  
  .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
  }
  
  /* Hero responsive */
  .hero {
    padding: 30px 12px 12px;
  }
  
  .hero h1 {
    font-size: 1.6rem !important;
    line-height: 1.3;
  }
  
  .hero p {
    font-size: 0.95rem !important;
  }
  
  /* Secciones */
  section.py-5 {
    padding-top: 2.5rem !important;
    padding-bottom: 2.5rem !important;
  }
  
  .section-badge {
    font-size: 0.75rem;
    padding: 6px 14px;
  }
  
  .section-title {
    font-size: 1.5rem !important;
    line-height: 1.3;
  }
  
  /* Cards apiladas verticalmente */
  .card-hover, .course-card {
    margin-bottom: 1rem;
  }
  
  .course-card .card-body {
    padding: 1rem;
  }
  
  .course-card .card-title {
    font-size: 1.1rem;
  }
  
  /* Profile card en about section */
  .profile-card-modern {
    margin-bottom: 2rem;
  }
  
  .profile-stats {
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .stat-item {
    flex: 1 1 calc(50% - 12px);
    min-width: 80px;
  }
  
  .stat-number {
    font-size: 1.5rem !important;
  }
  
  /* Skills grid más compacto */
  .skills-grid {
    gap: 8px;
  }
  
  .skill-tag {
    padding: 6px 10px;
    font-size: 0.75rem;
  }
  
  /* Key points en columna */
  .key-points {
    flex-direction: column;
    gap: 12px;
  }
  
  .key-point {
    padding: 12px;
  }
  
  /* Botones CTA más grandes para móvil */
  .btn-cta-primary,
  .btn-cta-accent {
    width: 100%;
    padding: 14px 20px;
    font-size: 1rem;
  }
  
  /* Footer más compacto */
  .footer-modern {
    padding: 1.5rem 0;
  }
  
  .footer-section {
    margin-bottom: 1.5rem;
  }
  
  /* Modales full width */
  .modal-dialog {
    margin: 10px;
    max-width: calc(100% - 20px);
  }
  
  .modal-content {
    border-radius: 16px !important;
  }
  
  /* Testimonios carousel */
  .carousel-inner .row {
    flex-direction: column;
  }
  
  .card.review {
    margin-bottom: 16px;
  }
  
  /* Formulario de contacto */
  #contacto .form-control {
    font-size: 16px; /* Evita zoom en iOS */
    padding: 12px 16px;
  }
  
  /* Promo cards */
  .promo-card-modern {
    padding: 20px !important;
  }
  
  /* Featured course card */
  .featured-course-card {
    padding: 20px !important;
  }
  
  /* Experience blocks */
  .experience-blocks {
    flex-wrap: wrap;
  }
  
  .exp-block {
    flex: 1 1 calc(50% - 8px);
    min-width: 120px;
  }
  
  /* Botones de descarga demo */
  .demo-download-btn {
    font-size: 0.85rem;
    padding: 10px 14px;
  }
  
  /* 🔥 OCULTAR SECCIÓN PRÁCTICA EN MÓVIL - NO TIENE SENTIDO */
  #practica {
    display: none !important;
  }
}

/* ============================================================
   📱 MÓVILES PEQUEÑOS (< 576px)
   ============================================================ */
@media (max-width: 575.98px) {
  /* Body padding para navbar */
  body {
    padding-top: 60px;
  }
  
  /* Navbar extra compacta */
  .navbar-main {
    padding: 0.3rem 0 !important;
    position: fixed !important;
    top: 0 !important;
    z-index: 9999 !important;
  }
  .navbar-main .navbar-brand span {
    font-size: 0.8rem;
    max-width: 140px;
  }
  
  .navbar-main .navbar-brand .brand-icon {
    width: 28px;
    height: 28px;
    font-size: 0.8rem;
    border-radius: 6px;
  }
  
  /* Menú hamburguesa items */
  .navbar-nav .nav-link {
    font-size: 0.9rem;
    padding: 10px 14px !important;
  }
  
  .navbar-main .navbar-brand span {
    font-size: 0.85rem;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  /* Hero minimalista */
  .hero {
    padding: 20px 10px 10px;
  }
  
  .hero h1 {
    font-size: 1.4rem !important;
  }
  
  .hero p {
    font-size: 0.9rem !important;
  }
  
  /* Secciones compactas */
  section.py-5 {
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
  }
  
  .section-title {
    font-size: 1.3rem !important;
  }
  
  .lead {
    font-size: 0.95rem !important;
  }
  
  /* Cards full width */
  .col-md-4, .col-md-6 {
    padding-left: 8px;
    padding-right: 8px;
  }
  
  /* Botones flotantes aún más pequeños */
  #floating-buttons {
    bottom: 12px;
    right: 12px;
    gap: 8px;
  }
  
  .floating-icon {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }
  
  /* Chat IA fullscreen en móvil */
  #chatIA.chat-container {
    width: 100% !important;
    max-width: 100% !important;
    height: 100vh !important;
    max-height: 100vh !important;
    bottom: 0 !important;
    right: 0 !important;
    border-radius: 0 !important;
  }
  
  /* Profile stats en 2 columnas */
  .stat-item {
    flex: 1 1 100%;
  }
  
  .stat-divider {
    display: none;
  }
  
  /* Experience blocks 1 columna */
  .exp-block {
    flex: 1 1 100%;
  }
  
  /* Promo cards más compactas */
  .promo-card-modern {
    padding: 16px !important;
  }
  
  .promo-card-modern h4 {
    font-size: 1.1rem;
  }
  
  /* Footer links en columna */
  .footer-legal-links {
    flex-direction: column;
    gap: 8px;
  }
  
  .contact-pill {
    font-size: 0.85rem;
    padding: 8px 14px;
  }
  
  /* Featured course más compacto */
  .featured-course-card .course-modules {
    flex-direction: column;
  }
  
  /* Carousel controls más visibles */
  .carousel-control-prev,
  .carousel-control-next {
    width: 12%;
  }
  
  /* Form inputs más grandes para touch */
  .form-control,
  .form-select {
    font-size: 16px !important; /* Evita zoom en iOS */
    padding: 14px 16px;
    border-radius: 10px;
  }
  
  textarea.form-control {
    min-height: 120px;
  }
  
  /* Buttons más grandes para touch */
  .btn {
    min-height: 44px; /* Apple HIG minimum */
    padding: 10px 16px;
  }
  
  .btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
  }
}

/* ============================================================
   📱 MÓVILES MUY PEQUEÑOS (< 480px)
   ============================================================ */
@media (max-width: 479.98px) {
  /* Body padding */
  body {
    padding-top: 55px;
  }
  
  /* Navbar ultra compacta */
  .navbar-main {
    padding: 0.25rem 0 !important;
    position: fixed !important;
    top: 0 !important;
    z-index: 9999 !important;
  }
  .navbar-main .navbar-brand span {
    font-size: 0.8rem;
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .navbar-main .navbar-brand .brand-icon {
    width: 26px;
    height: 26px;
    font-size: 0.75rem;
  }
  
  /* Toggler más pequeño */
  .navbar-toggler {
    padding: 4px 8px;
    font-size: 0.9rem;
  }
  
  /* Hero ultra compacto */
  .hero h1 {
    font-size: 1.25rem !important;
  }
  
  /* Section titles */
  .section-title {
    font-size: 1.2rem !important;
  }
  
  .section-badge {
    font-size: 0.7rem;
    padding: 5px 12px;
  }
  
  /* Cards padding reducido */
  .card-body {
    padding: 12px !important;
  }
  
  .course-card .card-title {
    font-size: 1rem;
  }
  
  /* Botones flotantes mínimos */
  #floating-buttons {
    bottom: 10px;
    right: 10px;
    gap: 6px;
  }
  
  .floating-icon {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }
  
  /* Skills tags en 2 columnas */
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }
  
  .skill-tag {
    padding: 4px 8px;
    font-size: 0.7rem;
  }
  
  /* Promo badge */
  .promo-badge {
    font-size: 0.65rem;
    padding: 4px 10px;
  }
  
  /* Footer ultra compacto */
  .footer-modern {
    padding: 1rem 0;
  }
  
  .footer-icon {
    width: 40px;
    height: 40px;
  }
  
  /* Modal ajustes */
  .modal-header {
    padding: 12px 16px;
  }
  
  .modal-body {
    padding: 16px;
  }
  
  .modal-footer {
    padding: 12px 16px;
  }
}

/* ============================================================
   🔧 FIXES ESPECÍFICOS PARA iOS
   ============================================================ */
@supports (-webkit-touch-callout: none) {
  /* Fix para safe areas en iPhone X+ */
  .navbar-main {
    padding-top: env(safe-area-inset-top);
  }
  
  #floating-buttons {
    bottom: calc(12px + env(safe-area-inset-bottom));
  }
  
  .footer-modern {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
  }
  
  /* Fix para 100vh en iOS */
  #chatIA.chat-container {
    height: -webkit-fill-available;
  }
}

/* ============================================================
   🔧 ORIENTACIÓN HORIZONTAL (LANDSCAPE)
   ============================================================ */
@media (max-width: 767.98px) and (orientation: landscape) {
  .hero {
    padding: 20px 16px 10px;
  }
  
  .hero h1 {
    font-size: 1.3rem !important;
  }
  
  section.py-5 {
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
  }
  
  /* Chat más pequeño en landscape */
  #chatIA.chat-container {
    max-height: 85vh;
  }
  
  /* Navbar más fina */
  .navbar-main {
    padding: 4px 0;
  }
}

/* ============================================================
   ♿ ACCESIBILIDAD - REDUCCIÓN DE MOVIMIENTO
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   🌙 MODO OSCURO (si el sistema lo tiene activado)
   ============================================================ */
@media (prefers-color-scheme: dark) {
  .section-light,
  .section-white {
    background: var(--bg-section-dark);
    color: var(--color-gray-300);
  }
  
  .card-elevated,
  .card-hover {
    background: rgba(30, 41, 59, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
  }
}


/* ============================================================
   🔥🔥🔥 OPTIMIZACIÓN PROFUNDA PARA MÓVILES 🔥🔥🔥
   ============================================================
   Última revisión: Diciembre 2025
   Objetivo: Experiencia perfecta en todos los dispositivos móviles
   ============================================================ */

/* ============================================================
   📱 INPUTS, FORMS Y TOUCH - TODOS LOS MÓVILES (<992px)
   ============================================================ */
@media (max-width: 991.98px) {
  /* Todos los inputs táctiles deben tener 44px mínimo */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="tel"],
  input[type="number"],
  input[type="search"],
  input[type="url"],
  select,
  textarea,
  .form-control,
  .form-select {
    min-height: 48px !important;
    font-size: 16px !important; /* Evita zoom en iOS */
    padding: 12px 16px !important;
    border-radius: 10px !important;
  }
  
  textarea,
  textarea.form-control {
    min-height: 120px !important;
  }
  
  /* Botones táctiles - mínimo 44px */
  .btn,
  button,
  [type="submit"],
  [type="button"] {
    min-height: 48px !important;
    padding: 12px 20px !important;
    font-size: 1rem !important;
  }
  
  /* Labels legibles */
  label,
  .form-label {
    font-size: 0.95rem !important;
    margin-bottom: 6px !important;
  }
}

/* ============================================================
   📱 MÓVILES (<768px) - LAYOUT GENERAL
   ============================================================ */
@media (max-width: 767.98px) {
  /* ===== HERO SECTION ===== */
  .hero {
    padding: 24px 16px 20px !important;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 1.5rem !important;
    line-height: 1.3 !important;
    margin-bottom: 12px !important;
  }
  
  .hero p {
    font-size: 0.95rem !important;
    line-height: 1.5 !important;
  }
  
  /* ===== SECCIONES GENERALES ===== */
  section.py-5 {
    padding: 2rem 0 !important;
  }
  
  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }
  
  /* ===== TÍTULOS DE SECCIÓN ===== */
  .section-badge {
    font-size: 0.75rem !important;
    padding: 6px 14px !important;
    margin-bottom: 12px !important;
  }
  
  .section-title {
    font-size: 1.4rem !important;
    line-height: 1.3 !important;
    margin-bottom: 16px !important;
  }
  
  .lead {
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
  }
  
  /* ===== PROFILE/ABOUT SECTION ===== */
  .profile-card-modern {
    text-align: center;
    margin-bottom: 24px;
  }
  
  .profile-image-wrapper img {
    max-width: 200px !important;
    margin: 0 auto;
  }
  
  .profile-stats {
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 16px !important;
  }
  
  .stat-item {
    flex: 0 0 auto !important;
    min-width: 80px;
    text-align: center;
  }
  
  .stat-number {
    font-size: 1.4rem !important;
  }
  
  .stat-label {
    font-size: 0.7rem !important;
  }
  
  .stat-divider {
    display: none !important;
  }
  
  /* ===== SKILLS GRID ===== */
  .skills-grid {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    justify-content: center !important;
  }
  
  .skill-tag {
    padding: 6px 12px !important;
    font-size: 0.75rem !important;
    flex: 0 0 auto;
  }
  
  /* ===== KEY POINTS ===== */
  .key-points {
    flex-direction: column !important;
    gap: 12px !important;
  }
  
  .key-point {
    padding: 14px !important;
    flex-direction: row !important;
    align-items: flex-start !important;
    gap: 12px !important;
  }
  
  .key-point-icon {
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    font-size: 1rem !important;
  }
  
  .key-point-content strong {
    font-size: 0.9rem !important;
  }
  
  .key-point-content span {
    font-size: 0.8rem !important;
  }
  
  /* ===== DIFFERENTIATOR QUOTE ===== */
  .differentiator-quote {
    padding: 20px !important;
    margin: 20px 0 !important;
  }
  
  .quote-content p {
    font-size: 0.95rem !important;
    line-height: 1.5 !important;
  }
  
  /* ===== FEATURE CARDS (Por qué aprender) ===== */
  .feature-card {
    padding: 20px !important;
    margin-bottom: 16px !important;
  }
  
  .feature-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.2rem !important;
    margin-bottom: 12px !important;
  }
  
  .feature-card h5 {
    font-size: 1rem !important;
  }
  
  .feature-card p {
    font-size: 0.85rem !important;
  }
  
  /* ===== STEP CARDS (Cómo funciona) ===== */
  .step-card {
    padding: 20px 16px !important;
    margin-bottom: 16px !important;
  }
  
  .step-number {
    width: 36px !important;
    height: 36px !important;
    font-size: 1rem !important;
    margin-bottom: 12px !important;
  }
  
  .step-card h5 {
    font-size: 0.95rem !important;
  }
  
  .step-card p {
    font-size: 0.8rem !important;
  }
  
  /* Flechas entre pasos - ocultar en móvil */
  .step-card + .col-md-1,
  .fa-arrow-right {
    display: none !important;
  }
  
  /* ===== PROMO CARDS ===== */
  .promo-card-modern {
    padding: 20px !important;
    margin-bottom: 16px !important;
  }
  
  .promo-card-modern h4 {
    font-size: 1.1rem !important;
  }
  
  .promo-card-modern p {
    font-size: 0.85rem !important;
  }
  
  .promo-card-modern .btn,
  .promo-card-modern a.btn {
    width: 100% !important;
    margin-top: 12px !important;
  }
  
  /* ===== FEATURED COURSE CARD ===== */
  .featured-course-card {
    padding: 20px !important;
  }
  
  .featured-course-card h3 {
    font-size: 1.2rem !important;
  }
  
  .featured-course-card .badge {
    font-size: 0.7rem !important;
    padding: 4px 10px !important;
  }
  
  .featured-cta-btn,
  .featured-course-card .btn {
    width: 100% !important;
    padding: 14px 20px !important;
    font-size: 1rem !important;
    margin-top: 12px !important;
  }
  
  /* Módulos del curso en columna */
  .course-modules,
  .featured-course-card .row {
    flex-direction: column !important;
  }
  
  /* ===== COURSE CARDS ===== */
  .course-card {
    margin-bottom: 16px !important;
  }
  
  .course-card .card-body {
    padding: 16px !important;
  }
  
  .course-card .card-title {
    font-size: 1rem !important;
  }
  
  .course-card .card-text {
    font-size: 0.85rem !important;
  }
  
  .course-card .course-price {
    font-size: 1.1rem !important;
  }
  
  .course-icon-wrapper {
    width: 60px !important;
    height: 60px !important;
    font-size: 1.5rem !important;
    margin-bottom: 12px !important;
  }
  
  /* ===== BONO CARD ===== */
  .bono-card-style {
    padding: 20px !important;
  }
  
  .bono-card-style h4 {
    font-size: 1.1rem !important;
  }
  
  .bono-card-style .btn {
    width: 100% !important;
    margin-top: 12px !important;
  }
  
  /* ===== EXPERIENCE BLOCKS ===== */
  .experience-blocks {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }
  
  .exp-block {
    padding: 14px 10px !important;
  }
  
  .exp-icon {
    width: 40px !important;
    height: 40px !important;
    font-size: 1rem !important;
    margin-bottom: 8px !important;
  }
  
  .exp-block h6 {
    font-size: 0.8rem !important;
  }
  
  .exp-block .text-muted {
    font-size: 0.7rem !important;
  }
  
  /* ===== HIGHLIGHT BOXES ===== */
  .highlight-box {
    padding: 16px !important;
    margin-bottom: 12px !important;
  }
  
  .highlight-icon {
    width: 44px !important;
    height: 44px !important;
    font-size: 1.1rem !important;
  }
  
  .highlight-box h6 {
    font-size: 0.9rem !important;
  }
  
  .highlight-box p {
    font-size: 0.8rem !important;
  }
  
  /* ===== DEMO SECTION ===== */
  .demo-mobile .btn {
    padding: 12px 16px !important;
    font-size: 0.9rem !important;
    margin-bottom: 8px !important;
  }
  
  /* ===== TESTIMONIOS/CAROUSEL ===== */
  .card.review {
    padding: 16px !important;
    margin-bottom: 12px !important;
  }
  
  .card.review p {
    font-size: 0.9rem !important;
  }
  
  .g-stars i {
    font-size: 0.9rem !important;
  }
  
  /* Carousel controls más grandes para touch */
  .carousel-control-prev,
  .carousel-control-next {
    width: 15% !important;
  }
  
  .carousel-control-prev-icon,
  .carousel-control-next-icon {
    width: 30px !important;
    height: 30px !important;
    background-color: rgba(0, 0, 0, 0.5) !important;
    border-radius: 50% !important;
    padding: 20px !important;
  }
  
  .carousel-indicators button {
    width: 10px !important;
    height: 10px !important;
    border-radius: 50% !important;
    margin: 0 4px !important;
  }
  
  /* ===== MASTERCLASS SECTION ===== */
  #masterclass .card {
    padding: 20px !important;
  }
  
  #masterclass h3 {
    font-size: 1.2rem !important;
  }
  
  /* ===== CONTACTO SECTION ===== */
  #contacto .card {
    padding: 20px !important;
  }
  
  #contacto h5 {
    font-size: 1rem !important;
  }
  
  #contacto p {
    font-size: 0.85rem !important;
  }
  
  /* ===== FOOTER ===== */
  .footer-modern {
    padding: 24px 0 !important;
  }
  
  .footer-icon {
    width: 50px !important;
    height: 50px !important;
    margin-bottom: 12px !important;
  }
  
  .footer-section {
    margin-bottom: 20px !important;
    text-align: center !important;
  }
  
  .footer-link-item,
  .footer-contact-link {
    font-size: 0.85rem !important;
    padding: 8px 0 !important;
  }
  
  .footer-legal-links {
    flex-direction: column !important;
    gap: 10px !important;
    align-items: center !important;
  }
  
  .footer-link-legal {
    font-size: 0.8rem !important;
  }
  
  .contact-pill {
    font-size: 0.85rem !important;
    padding: 10px 16px !important;
    margin: 4px !important;
  }
  
  /* ===== MODALES ===== */
  .modal-dialog {
    margin: 8px !important;
    max-width: calc(100% - 16px) !important;
  }
  
  .modal-content {
    border-radius: 16px !important;
  }
  
  .modal-header {
    padding: 16px !important;
  }
  
  .modal-header h5,
  .modal-title {
    font-size: 1.1rem !important;
  }
  
  .modal-body {
    padding: 16px !important;
  }
  
  .modal-footer {
    padding: 12px 16px !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
  }
  
  .modal-footer .btn {
    flex: 1 1 100% !important;
  }
  
  /* Modal Login específico */
  #loginModal .modal-dialog {
    margin: 6px auto !important;
    max-width: calc(100% - 12px) !important;
  }

  #loginModal .modal-content {
    max-height: 92vh !important;
  }

  #loginModal .modal-body {
    padding: 14px !important;
    overflow-y: auto !important;
  }

  #loginModal .bg-light.rounded-3 {
    padding: 12px !important;
    margin-bottom: 12px !important;
  }
  
  #loginModal input {
    font-size: 16px !important;
    min-height: 48px !important;
  }
  
  #loginModal .btn {
    min-height: 48px !important;
    font-size: 1rem !important;
  }
  
  /* ===== BOTONES FLOTANTES ===== */
  #floating-buttons {
    bottom: 16px !important;
    right: 16px !important;
    gap: 10px !important;
  }
  
  .floating-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 20px !important;
  }
  
  /* ===== CHAT IA ===== */
  #chatIA.chat-container {
    width: 100% !important;
    max-width: 100% !important;
    height: 100vh !important;
    max-height: 100% !important;
    bottom: 0 !important;
    right: 0 !important;
    left: 0 !important;
    border-radius: 0 !important;
    position: fixed !important;
  }
  
  #chatIA .chat-header {
    padding: 14px 16px !important;
    border-radius: 0 !important;
  }
  
  #chatIA .chat-body {
    padding: 12px !important;
  }
  
  #chatIA .chat-msg {
    padding: 10px 14px !important;
    font-size: 0.9rem !important;
    max-width: 90% !important;
  }
  
  #chatIA .chat-input-area textarea {
    min-height: 44px !important;
    font-size: 16px !important;
  }
  
  #chatIA .chat-send-btn {
    min-width: 44px !important;
    min-height: 44px !important;
  }
  
  #chatIA .chat-quick-btn {
    padding: 10px 14px !important;
    font-size: 0.85rem !important;
  }
}

/* ============================================================
   📱 MÓVILES PEQUEÑOS (<576px) - AJUSTES EXTRA
   ============================================================ */
@media (max-width: 575.98px) {
  /* Hero aún más compacto */
  .hero {
    padding: 20px 12px 16px !important;
  }
  
  .hero h1 {
    font-size: 1.35rem !important;
  }
  
  /* Secciones */
  section.py-5 {
    padding: 1.5rem 0 !important;
  }
  
  .container {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
  
  .section-title {
    font-size: 1.25rem !important;
  }
  
  /* Experience blocks 2 columnas más compactas */
  .experience-blocks {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
  }
  
  .exp-block {
    padding: 10px 8px !important;
  }
  
  .exp-icon {
    width: 36px !important;
    height: 36px !important;
    font-size: 0.9rem !important;
  }
  
  .exp-block h6 {
    font-size: 0.75rem !important;
  }
  
  /* Profile stats más compactas */
  .profile-stats {
    gap: 12px !important;
  }
  
  .stat-number {
    font-size: 1.2rem !important;
  }
  
  /* Skills más pequeñas */
  .skill-tag {
    padding: 5px 10px !important;
    font-size: 0.7rem !important;
  }
  
  /* Botones flotantes más pequeños */
  #floating-buttons {
    bottom: 12px !important;
    right: 12px !important;
    gap: 8px !important;
  }
  
  .floating-icon {
    width: 46px !important;
    height: 46px !important;
    font-size: 18px !important;
  }
  
  /* Course cards más compactas */
  .course-card .card-body {
    padding: 14px !important;
  }
  
  .course-icon-wrapper {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.3rem !important;
  }
  
  /* Featured course */
  .featured-course-card {
    padding: 16px !important;
  }
  
  .featured-course-card h3 {
    font-size: 1.1rem !important;
  }
  
  /* Footer extra compacto */
  .footer-modern {
    padding: 20px 0 !important;
  }
  
  .footer-icon {
    width: 44px !important;
    height: 44px !important;
  }
}

/* ============================================================
   📱 MÓVILES MUY PEQUEÑOS (<480px) - ULTRA COMPACTO
   ============================================================ */
@media (max-width: 479.98px) {
  /* Hero mínimo */
  .hero {
    padding: 16px 10px 12px !important;
  }
  
  .hero h1 {
    font-size: 1.2rem !important;
  }
  
  .hero p {
    font-size: 0.85rem !important;
  }
  
  /* Secciones */
  .section-title {
    font-size: 1.15rem !important;
  }
  
  .section-badge {
    font-size: 0.7rem !important;
    padding: 5px 12px !important;
  }
  
  /* Key points ultra compactos */
  .key-point {
    padding: 12px !important;
  }
  
  .key-point-icon {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    font-size: 0.9rem !important;
  }
  
  /* Promo cards mínimas */
  .promo-card-modern {
    padding: 16px !important;
  }
  
  .promo-card-modern h4 {
    font-size: 1rem !important;
  }
  
  /* Feature cards mínimas */
  .feature-card {
    padding: 16px !important;
  }
  
  .feature-icon {
    width: 44px !important;
    height: 44px !important;
    font-size: 1.1rem !important;
  }
  
  /* Step cards mínimas */
  .step-card {
    padding: 16px 12px !important;
  }
  
  .step-number {
    width: 32px !important;
    height: 32px !important;
    font-size: 0.9rem !important;
  }
  
  /* Botones flotantes mínimos */
  .floating-icon {
    width: 42px !important;
    height: 42px !important;
    font-size: 16px !important;
  }
  
  /* Modal ultra compacto */
  .modal-dialog {
    margin: 4px !important;
  }
  
  .modal-header {
    padding: 12px !important;
  }
  
  .modal-body {
    padding: 12px !important;
  }
  
  /* Cards padding mínimo */
  .card-body {
    padding: 12px !important;
  }
  
  /* Carousel indicators más grandes para touch */
  .carousel-indicators button {
    width: 12px !important;
    height: 12px !important;
  }
}

/* ============================================================
   📱 PANTALLAS MUY ANCHAS EN MÓVIL (iPhone Pro Max, etc)
   ============================================================ */
@media (min-width: 400px) and (max-width: 480px) {
  /* Aprovechar mejor el espacio */
  .hero h1 {
    font-size: 1.35rem !important;
  }
  
  .section-title {
    font-size: 1.3rem !important;
  }
  
  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }
}

/* ============================================================
   🔧 SAFE AREAS - iPhone X, 11, 12, 13, 14, 15 Pro
   ============================================================ */
@supports (padding: max(0px)) {
  @media (max-width: 767.98px) {
    body {
      padding-bottom: env(safe-area-inset-bottom) !important;
    }
    
    .footer-modern {
      padding-bottom: max(20px, env(safe-area-inset-bottom)) !important;
    }
    
    #floating-buttons {
      bottom: max(16px, calc(16px + env(safe-area-inset-bottom))) !important;
    }
    
    #chatIA.chat-container {
      padding-bottom: env(safe-area-inset-bottom) !important;
    }
    
    #chatIA .chat-input-area {
      padding-bottom: max(8px, env(safe-area-inset-bottom)) !important;
    }
  }
}

/* ============================================================
   ⚡ PERFORMANCE - Optimizaciones de renderizado
   ============================================================ */
@media (max-width: 767.98px) {
  /* Desactivar animaciones pesadas en móvil para mejor rendimiento */
  .card-hover:hover,
  .feature-card:hover,
  .step-card:hover {
    transform: none !important;
  }
  
  /* Usar will-change solo donde es necesario */
  .navbar-main,
  #floating-buttons,
  #chatIA.chat-container {
    will-change: transform;
  }
  
  /* Reducir complejidad de sombras en móvil */
  .shadow-lg {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
  }

  .shadow-xl {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12) !important;
  }
}

/* ============================================================
   🎯 EFECTOS HOVER PARA TARJETAS DE CONTACTO
   ============================================================ */
#contacto .card {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.4s ease,
              filter 0.4s ease;
  will-change: transform, box-shadow;
}

#contacto .card:hover {
  transform: translateY(-12px) scale(1.02);
}

/* Tarjeta 1: Primera clase (púrpura) */
#contacto .col-lg-4:nth-child(1) .card:hover {
  box-shadow: 0 25px 50px rgba(102, 126, 234, 0.4),
              0 10px 20px rgba(118, 75, 162, 0.3) !important;
}

/* Tarjeta 2: Bono (rosa) */
#contacto .col-lg-4:nth-child(2) .card:hover {
  box-shadow: 0 25px 50px rgba(240, 147, 251, 0.4),
              0 10px 20px rgba(245, 87, 108, 0.3) !important;
}

/* Tarjeta 3: Ayuda personalizada (cyan) */
#contacto .col-lg-4:nth-child(3) .card:hover {
  box-shadow: 0 25px 50px rgba(79, 172, 254, 0.4),
              0 10px 20px rgba(0, 242, 254, 0.3) !important;
}

/* Efecto brillo en el botón al hacer hover en la tarjeta */
#contacto .card:hover .btn-light {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

#contacto .card .btn-light {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Efecto en los indicadores de confianza */
#contacto .row.g-4.mb-5 > div > .card {
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.3s ease;
}

#contacto .row.g-4.mb-5 > div > .card:hover {
  transform: translateY(-6px) scale(1.03);
}

/* Colores específicos para indicadores */
#contacto .row.g-4.mb-5 > div:nth-child(1) > .card:hover {
  box-shadow: 0 15px 35px rgba(102, 126, 234, 0.25) !important;
}

#contacto .row.g-4.mb-5 > div:nth-child(2) > .card:hover {
  box-shadow: 0 15px 35px rgba(240, 147, 251, 0.25) !important;
}

#contacto .row.g-4.mb-5 > div:nth-child(3) > .card:hover {
  box-shadow: 0 15px 35px rgba(79, 172, 254, 0.25) !important;
}

#contacto .row.g-4.mb-5 > div:nth-child(4) > .card:hover {
  box-shadow: 0 15px 35px rgba(250, 112, 154, 0.25) !important;
}

/* Efecto hover en FAQ cards */
#contacto .row.g-3 .card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  border: 2px solid transparent;
}

#contacto .row.g-3 .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1) !important;
  border-color: rgba(102, 126, 234, 0.3);
}