/* ============================================
   ENTERPRISES O&R CONSULTING GROUP - CSS
   Versión: 1.0.2
   Autor: Equipo de Desarrollo
   Última actualización: 2024
   Corrección: Botón de acceso y overlays de servicios
   ============================================ */

/* ============================================
   1. RESET Y VARIABLES GLOBALES
   ============================================ */
:root {
  /* Colores principales */
  --color-primary: #0d0d3d;     /* Azul oscuro corporativo */
  --color-secondary: #c2a359;   /* Dorado corporativo */
  --color-light: #f8f9fa;       /* Fondo claro */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray: #555555;
  --color-gray-light: #eeeeee;
  
  /* Colores de interacción */
  --color-hover: #a88740;       /* Dorado oscuro hover */
  --color-overlay: rgba(13, 13, 61, 0.85); /* Overlay azul */
  
  /* Sombras */
  --shadow-light: 0 2px 20px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 10px 30px rgba(0, 0, 0, 0.2);
  --shadow-gold: 0 5px 15px rgba(194, 163, 89, 0.3);
  
  /* Transiciones */
  --transition-fast: 0.3s ease;
  --transition-normal: 0.4s ease;
  --transition-slow: 0.6s ease;
  --transition-bezier: cubic-bezier(0.65, 0, 0.35, 1);
  
  /* Bordes */
  --border-radius: 8px;
  --border-radius-lg: 15px;
  --border-radius-circle: 50%;
  
  /* Espaciados */
  --spacing-xs: 5px;
  --spacing-sm: 10px;
  --spacing-md: 20px;
  --spacing-lg: 30px;
  --spacing-xl: 40px;
  --spacing-xxl: 60px;
  
  /* Z-index layers */
  --z-base: 1;
  --z-middle: 10;
  --z-high: 100;
  --z-header: 1000;
  --z-overlay: 2000;
}

/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

/* ============================================
   2. TIPOGRAFÍA Y BASE
   ============================================ */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  overflow-x: hidden;
  padding-top: 100px;
  background-color: var(--color-light);
  color: var(--color-gray);
  line-height: 1.6;
}

/* Títulos generales */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

/* Enlaces */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-secondary);
}

/* Botones */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--border-radius);
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
}

.btn-primary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

/* ============================================
   3. ENCABEZADO Y NAVEGACIÓN - CORREGIDO
   ============================================ */
.header-container {
  display: flex;
  width: 100%;
  height: 100px;
  background-color: var(--color-white);
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-header);
  padding: 0 5%;
  align-items: center;
  box-shadow: var(--shadow-light);
  transition: transform var(--transition-normal);
  justify-content: space-between;
}

.header-container.hidden {
  transform: translateY(-100%);
}

.header-container.visible {
  transform: translateY(0);
}

/* Logo section */
.logo-section {
  flex: 1;
  max-width: 33.33%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.logo-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 325px;
  height: 91px;
  position: relative;
}

.logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.logo-img.loaded {
  opacity: 1;
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  opacity: 1;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.logo-text span {
  color: var(--color-secondary);
  display: block;
}

.logo-img.loaded + .logo-text {
  opacity: 0;
  visibility: hidden;
}

/* Navigation section */
.nav-section {
  flex: 2;
  max-width: 66.66%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  margin-left: 35px;
  position: relative;
}

.nav-menu a {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  padding: 8px 0;
  transition: all var(--transition-fast);
  position: relative;
  display: inline-block;
}

.nav-menu a:hover {
  color: var(--color-secondary);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-fast);
}

.nav-menu a:hover::after {
  width: 100%;
}

/* Botón de acceso (clase unificada) */
.access-btn {
  background-color: var(--color-secondary);
  color: var(--color-white) !important;
  border-radius: var(--border-radius);
  padding: 12px 28px !important;
  margin-left: 20px;
  font-weight: 700;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.access-btn:hover {
  background-color: var(--color-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.access-btn::after {
  display: none !important;
}

/* ============================================
   MENÚ HAMBURGUESA MÓVIL - NUEVO ESTILO
   ============================================ */

/* Botón hamburguesa - oculto en desktop */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 28px;
  cursor: pointer;
  padding: 10px;
  border-radius: 5px;
  transition: all 0.3s ease;
  margin-left: 20px;
  z-index: calc(var(--z-header) + 1);
}

.mobile-menu-toggle:hover {
  background-color: rgba(194, 163, 89, 0.1);
}

/* Menú móvil - Estado inicial (oculto) */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, rgba(13, 13, 61, 0.98) 0%, rgba(13, 13, 61, 0.95) 100%);
  backdrop-filter: blur(20px);
  z-index: 9999;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}

/* Menú móvil - Estado visible */
.mobile-menu.active {
  right: 0;
}

/* Botón para cerrar menú */
.mobile-menu-close {
  position: absolute;
  top: 25px;
  right: 25px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
  padding: 10px;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10000;
}

.mobile-menu-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

/* Enlaces del menú móvil */
.mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: center;
  width: 100%;
  max-width: 500px;
}

.mobile-menu ul li {
  margin: 25px 0;
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.4s ease;
}

.mobile-menu.active ul li {
  opacity: 1;
  transform: translateX(0);
}

/* Retrasos para animación escalonada */
.mobile-menu.active ul li:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active ul li:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.active ul li:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active ul li:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu.active ul li:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu.active ul li:nth-child(6) { transition-delay: 0.35s; }

.mobile-menu ul li a {
  color: white;
  font-size: 22px;
  font-weight: 500;
  padding: 18px 30px;
  border-radius: 12px;
  transition: all 0.3s ease;
  display: block;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu ul li a:hover {
  background: rgba(194, 163, 89, 0.25);
  color: var(--color-secondary);
  transform: translateX(10px);
  border-color: rgba(194, 163, 89, 0.3);
}

/* Botón de acceso en móvil */
.mobile-access-item {
  margin-top: 40px !important;
  transition-delay: 0.4s !important;
}

.mobile-access-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 12px !important;
  padding: 18px 40px !important;
  background: linear-gradient(135deg, var(--color-secondary), #d4b565) !important;
  color: white !important;
  border-radius: 30px !important;
  font-weight: 700 !important;
  font-size: 17px !important;
  text-transform: uppercase !important;
  letter-spacing: 1.5px !important;
  transition: all 0.3s ease !important;
  border: 2px solid var(--color-secondary) !important;
  text-decoration: none !important;
  box-shadow: 0 6px 20px rgba(194, 163, 89, 0.3) !important;
  min-width: 250px !important;
}

.mobile-access-btn:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 10px 30px rgba(194, 163, 89, 0.4) !important;
}

/* Evitar scroll cuando el menú está abierto */
body.menu-open {
  overflow: hidden;
}

/* ============================================
   4. VIDEO BANNER Y HERO
   ============================================ */
.video-banner {
  position: relative;
  width: 100%;
  height: calc(100vh - 100px);
  overflow: hidden;
  background-color: var(--color-black);
}

.video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-base);
  overflow: hidden;
}

.youtube-iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 56.25vw;
  min-height: 100vh;
  min-width: 177.77vh;
  transform: translate(-50%, -50%);
  border: none;
  pointer-events: none;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(13, 13, 61, 0.6);
  z-index: var(--z-middle);
}

.video-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: var(--z-high);
  width: 90%;
  max-width: 1200px;
  color: var(--color-white);
  text-align: center;
  padding: 0 var(--spacing-md);
}

.video-content h1 {
  font-size: 5.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
  color: var(--color-secondary);
  text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.9);
  letter-spacing: 1px;
}

.video-content p {
  font-size: 1.8rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.9);
  font-weight: 500;
  color: var(--color-secondary);
}

/* ============================================
   5. TAGLINE SECTIONS
   ============================================ */
.tagline-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl) var(--spacing-md);
  position: relative;
  background-color: var(--color-white);
}

.tagline-line {
  flex: 1;
  max-width: 200px;
  height: 1px;
  background-color: var(--color-secondary);
  margin: 0 var(--spacing-lg);
}

.tagline-text {
  color: var(--color-secondary);
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.3;
  letter-spacing: 1px;
  padding: 0 var(--spacing-md);
  white-space: nowrap;
}

/* ============================================
   6. SERVICIOS CON ANIMACIONES MEJORADAS
   ============================================ */
.services-section {
  padding: var(--spacing-xxl) 5%;
  background-color: var(--color-light);
  position: relative;
  z-index: var(--z-middle);
}

.services-container {
  display: flex;
  width: 100%;
  gap: var(--spacing-md);
  overflow: hidden;
  padding: 0;
  position: relative;
}

.service-box {
  position: relative;
  flex: 1;
  height: 650px;
  overflow: hidden;
  transition: all 0.8s var(--transition-bezier);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  border-radius: var(--border-radius);
  background-color: var(--color-white);
  box-shadow: var(--shadow-heavy);
  will-change: transform; /* mejora rendimiento */
}

.image-container {
  position: relative;
  flex: 1;
  overflow: hidden;
}

.service-box img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.8s var(--transition-bezier);
  z-index: var(--z-base);
}

/* Efecto de estiramiento horizontal */
.services-container:hover .service-box:not(:hover) {
  flex: 0.5;
}

.service-box:hover {
  flex: 3;
}

.service-box:hover img {
  transform: scale(1.05);
}

/* Overlay mejorado con gradiente, blur y transiciones */
.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(13, 13, 61, 0.95) 0%, rgba(194, 163, 89, 0.9) 100%);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  padding: 30px;
  color: white;
  text-align: left;
  overflow-y: auto;
  pointer-events: none; /* Evita que interfiera con el hover */
  transition: all 0.4s ease;
  z-index: var(--z-middle);
}

/* Hover en desktop: activa overlay */
.service-box:hover .image-overlay {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto; /* Permite interactuar con el contenido */
}

/* Contenido del overlay */
.overlay-content {
  max-width: 800px;
  width: 100%;
  color: var(--color-white);
}

.overlay-content h3 {
  color: var(--color-secondary);
  font-size: 1.8rem;
  margin-bottom: 25px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.overlay-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  text-align: left;
}

.overlay-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(194, 163, 89, 0.3);
  font-size: 1.1rem;
  position: relative;
  padding-left: 20px;
}

.overlay-list li:before {
  content: "•";
  color: var(--color-secondary);
  position: absolute;
  left: 0;
  font-size: 1.5rem;
}

/* Títulos de servicios */
.service-title-container {
  background-color: var(--color-white);
  padding: 25px 20px;
  text-align: center;
  border-top: 1px solid var(--color-gray-light);
  flex-shrink: 0;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-title {
  color: var(--color-secondary);
  font-size: 2.2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 0;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
  line-height: 1.2;
}

/* Estilos para dispositivos táctiles */
.touch-device .service-box .image-overlay {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  pointer-events: auto; /* En táctil necesitamos recibir eventos */
  display: flex; /* Aseguramos que no esté en display:none */
}

.touch-device .service-box.touch-active .image-overlay {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Subtexto hover (si se usa) */
.parent-text {
  position: relative;
  cursor: pointer;
  display: inline-block;
}

.subtext {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  background: var(--color-white);
  color: #333;
  padding: 15px;
  border-radius: 5px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  z-index: var(--z-high);
  min-width: 300px;
  list-style: none;
  margin-top: 10px;
}

.subtext:before {
  content: '';
  position: absolute;
  top: -8px;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid var(--color-white);
}

.subtext li {
  padding: 5px 0;
  border-bottom: 1px solid var(--color-gray-light);
}

.subtext li:last-child {
  border-bottom: none;
}

.parent-text:hover .subtext {
  display: block;
}

/* ============================================
   7. CARRUSEL DE IMÁGENES
   ============================================ */
.carousel-section {
  padding: var(--spacing-xxl) 5%;
  background-color: var(--color-white);
  position: relative;
  z-index: var(--z-middle);
}

.carousel-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-heavy);
}

.carousel-slide {
  display: flex;
  transition: transform 0.5s ease-in-out;
  height: 400px;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  flex-shrink: 0;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(13, 13, 61, 0.7);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  padding: 15px;
  font-size: 24px;
  z-index: var(--z-middle);
  transition: background-color var(--transition-fast);
}

.carousel-btn:hover {
  background-color: rgba(13, 13, 61, 0.9);
}

.prev-btn {
  left: 10px;
}

.next-btn {
  right: 10px;
}

.carousel-dots {
  position: absolute;
  bottom: 20px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  z-index: var(--z-middle);
}

.carousel-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: var(--border-radius-circle);
  background-color: rgba(255, 255, 255, 0.5);
  margin: 0 5px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.carousel-dots .dot.active {
  background-color: var(--color-secondary);
}

/* ============================================
   8. TIMELINE CON ICONOS
   ============================================ */
.timeline-section {
  padding: var(--spacing-xxl) 5%;
  background-color: var(--color-light);
  position: relative;
  z-index: var(--z-middle);
}

.timeline-title {
  color: var(--color-primary);
  font-size: 2.8rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  position: relative;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timeline-title:after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--color-secondary);
}

.timeline-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* Línea central vertical - Desktop */
.timeline-container:before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background-color: var(--color-secondary);
  top: 0;
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 80px;
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

.timeline-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-icon {
  width: 80px;
  height: 80px;
  background-color: var(--color-secondary);
  border-radius: var(--border-radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-middle);
  box-shadow: var(--shadow-gold);
  transition: all var(--transition-normal);
}

.timeline-icon:hover {
  transform: translateX(-50%) scale(1.1);
  box-shadow: 0 8px 25px rgba(194, 163, 89, 0.4);
}

.timeline-icon i {
  color: var(--color-white);
  font-size: 30px;
}

.timeline-content {
  width: 45%;
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  position: relative;
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.timeline-item:nth-child(odd) .timeline-content {
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  text-align: left;
}

/* Triángulos apuntadores - Desktop */
.timeline-content:before {
  content: '';
  position: absolute;
  top: 30px;
  width: 0;
  height: 0;
  border-style: solid;
}

.timeline-item:nth-child(odd) .timeline-content:before {
  right: -15px;
  border-width: 10px 0 10px 15px;
  border-color: transparent transparent transparent var(--color-white);
}

.timeline-item:nth-child(even) .timeline-content:before {
  left: -15px;
  border-width: 10px 15px 10px 0;
  border-color: transparent var(--color-white) transparent transparent;
}

.timeline-year {
  color: var(--color-secondary);
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 10px;
  display: inline-block;
  padding: var(--spacing-xs) 15px;
  background-color: rgba(194, 163, 89, 0.1);
  border-radius: var(--border-radius);
}

.timeline-subtitle {
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.3;
}

.timeline-description {
  color: var(--color-gray);
  font-size: 1.1rem;
  line-height: 1.6;
}

/* ============================================
   9. SECCIÓN DE CLIENTES
   ============================================ */
.clients-section {
  padding: var(--spacing-xxl) 5%;
  background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 100%);
  position: relative;
  z-index: var(--z-middle);
  overflow: hidden;
}

.clients-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(194, 163, 89, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(13, 13, 61, 0.03) 0%, transparent 50%);
  z-index: var(--z-base);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-title {
  color: var(--color-primary);
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
}

.section-subtitle {
  color: var(--color-gray);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xxl);
  perspective: 1000px;
}

.client-logo {
  position: relative;
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: 25px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 150px;
  border: 1px solid rgba(13, 13, 61, 0.1);
}

.client-logo:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 15px 40px rgba(13, 13, 61, 0.15);
  border-color: var(--color-secondary);
}

.client-logo img {
  width: 100%;
  height: auto;
  max-height: 80px;
  object-fit: contain;
  filter: grayscale(100%) contrast(0.8);
  transition: all var(--transition-normal);
}

.client-logo:hover img {
  filter: grayscale(0%) contrast(1);
  transform: scale(1.05);
}

.clients-stats {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 40px rgba(13, 13, 61, 0.1);
  border: 1px solid rgba(194, 163, 89, 0.2);
  position: relative;
  overflow: hidden;
}

.clients-stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary), var(--color-secondary));
}

.stat-item {
  text-align: center;
  flex: 1;
  min-width: 200px;
  position: relative;
  padding: var(--spacing-md);
}

.stat-number {
  color: var(--color-secondary);
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 10px;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-secondary), #a88740);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-label {
  color: var(--color-primary);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ============================================
   10. CERTIFICACIONES INTERNACIONALES
   ============================================ */
.certifications-section {
  position: relative;
  padding: 100px 5%;
  overflow: hidden;
  color: var(--color-white);
  z-index: var(--z-middle);
}

.certifications-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-base);
  background: linear-gradient(135deg, rgba(13, 13, 61, 0.9) 0%, rgba(13, 13, 61, 0.7) 100%);
}

.certifications-container {
  position: relative;
  z-index: var(--z-middle);
  max-width: 1200px;
  margin: 0 auto;
}

.certifications-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  position: relative;
}

.certifications-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.2;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
  background: linear-gradient(135deg, var(--color-secondary), #e8d28b, var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.certifications-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
  align-items: start;
}

.certifications-text {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(194, 163, 89, 0.3);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.text-highlight {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 25px;
  line-height: 1.4;
}

.main-description {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.95);
}

.flags-section {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(194, 163, 89, 0.3);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.flags-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 15px;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.flags-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.flag-item {
  text-align: center;
  transition: transform var(--transition-fast);
}

.flag-item:hover {
  transform: translateY(-10px);
}

.flag-container {
  width: 120px;
  height: 120px;
  margin: 0 auto 15px;
  border-radius: var(--border-radius-circle);
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border: 3px solid var(--color-secondary);
  transition: all var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flag-container:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(194, 163, 89, 0.4);
}

.flag-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.certifications-cta {
  background: linear-gradient(135deg, rgba(194, 163, 89, 0.2), rgba(13, 13, 61, 0.8));
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  border: 2px solid rgba(194, 163, 89, 0.3);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-secondary), #a88740);
  color: var(--color-white);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 18px 40px;
  border-radius: 50px;
  text-decoration: none;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(194, 163, 89, 0.3);
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(194, 163, 89, 0.4);
  background: linear-gradient(135deg, #d4b565, var(--color-secondary));
}

/* ============================================
   11. FOOTER SIMÉTRICO
   ============================================ */
footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-xxl) 5% 30px;
  text-align: center;
  position: relative;
  z-index: var(--z-middle);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto var(--spacing-xl);
  align-items: center;
  justify-content: center;
}

.footer-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.footer-logo-img {
  max-width: 250px;
  height: auto;
  margin-bottom: var(--spacing-md);
  object-fit: contain;
}

.footer-social {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.footer-social h4 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.3;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-circle);
  color: var(--color-white);
  font-size: 1.3rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.social-icons a:hover {
  background-color: var(--color-secondary);
  transform: translateY(-3px);
}

.copyright {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ============================================
   12. MEDIA QUERIES (RESPONSIVE) - ACTUALIZADO
   ============================================ */

/* Pantallas grandes (hasta 1200px) */
@media (max-width: 1200px) {
  .logo-container {
    width: 260px;
    height: 73px;
  }
  
  .video-content h1 {
    font-size: 4.5rem;
  }
  
  .video-content p {
    font-size: 1.5rem;
  }
  
  .tagline-text {
    font-size: 2.2rem;
  }
  
  .service-box {
    height: 600px;
  }
  
  .service-title {
    font-size: 2rem;
  }
  
  .carousel-slide {
    height: 350px;
  }
  
  .timeline-title {
    font-size: 2.5rem;
  }
  
  .clients-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .certifications-title {
    font-size: 3rem;
  }
  
  .flags-grid {
    gap: 25px;
  }
  
  .flag-container {
    width: 100px;
    height: 100px;
  }
}

/* Tablets (hasta 992px) */
@media (max-width: 992px) {
  .nav-menu {
    display: none !important;
  }
  
  .mobile-menu-toggle {
    display: block !important;
  }
  
  .access-item {
    display: none;
  }
  
  .video-content h1 {
    font-size: 4rem;
  }
  
  .video-content p {
    font-size: 1.3rem;
  }
  
  .logo-container {
    width: 210px;
    height: 59px;
  }
  
  .logo-text {
    font-size: 18px;
  }
  
  .tagline-text {
    font-size: 2rem;
  }
  
  .tagline-line {
    max-width: 150px;
    margin: 0 25px;
  }
  
  .service-box {
    height: 550px;
  }
  
  .service-title {
    font-size: 1.8rem;
  }
  
  .carousel-slide {
    height: 320px;
  }
  
  .timeline-title {
    font-size: 2.2rem;
  }
  
  .timeline-container:before {
    display: none;
  }
  
  .timeline-item {
    flex-direction: column !important;
    margin-bottom: 60px;
    margin-left: 0;
    align-items: flex-start;
  }
  
  .timeline-icon {
    position: relative;
    left: 0;
    transform: none;
    margin-bottom: 20px;
    margin-left: 0;
    width: 70px;
    height: 70px;
  }
  
  .timeline-content {
    width: 100%;
    text-align: left !important;
    padding: 25px;
    margin-left: 0;
  }
  
  .timeline-content:before {
    display: none;
  }
  
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .certifications-title {
    font-size: 2.5rem;
  }
  
  .certifications-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .flags-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .certifications-cta {
    flex-direction: column;
    text-align: center;
    gap: 30px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

/* Tablets pequeñas (hasta 768px) */
@media (max-width: 768px) {
  body {
    padding-top: 80px;
  }
  
  .header-container {
    height: 80px;
    padding: 0 20px;
  }
  
  .video-banner {
    height: calc(100vh - 80px);
  }
  
  .video-content h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
  }
  
  .video-content p {
    font-size: 1.4rem;
  }
  
  .logo-container {
    width: 320px;
    height: 90px;
    margin: 0 auto;
  }
  
  .logo-text {
    font-size: 22px;
  }
  
  .tagline-container {
    flex-direction: column;
    padding: 60px 20px;
  }
  
  .tagline-text {
    font-size: 1.8rem;
    white-space: normal;
    margin: 20px 0;
    line-height: 1.4;
    padding: 0;
  }
  
  .tagline-line {
    width: 100%;
    max-width: 100px;
    margin: 15px 0;
  }
  
  .services-section {
    padding: 40px 20px;
  }
  
  .services-container {
    flex-direction: column;
    height: auto;
    gap: 40px;
    position: static;
    overflow: visible;
  }
  
  .service-box {
    height: 500px;
    width: 100%;
    flex: none !important;
  }
  
  /* En móvil, el overlay se controla con la clase .touch-active */
  .service-title {
    font-size: 2rem;
  }
  
  .carousel-section {
    padding: 40px 20px;
  }
  
  .carousel-container {
    max-width: 100%;
  }
  
  .carousel-slide {
    height: 300px;
  }
  
  .carousel-btn {
    padding: 12px;
    font-size: 20px;
  }
  
  .timeline-section {
    padding: 60px 20px;
  }
  
  .timeline-title {
    font-size: 2rem;
    margin-bottom: 50px;
  }
  
  .timeline-item {
    flex-direction: column !important;
    margin-bottom: 50px;
    margin-left: 0;
  }
  
  .timeline-icon {
    width: 60px;
    height: 60px;
    align-self: flex-start;
  }
  
  .timeline-content {
    padding: 25px;
  }
  
  .timeline-year {
    font-size: 1.4rem;
  }
  
  .timeline-subtitle {
    font-size: 1.3rem;
  }
  
  .clients-section {
    padding: 50px 20px;
  }
  
  .section-title {
    font-size: 2.2rem;
  }
  
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
  
  .client-logo {
    padding: 20px;
    min-height: 120px;
  }
  
  .client-logo img {
    max-height: 60px;
  }
  
  .certifications-section {
    padding: 60px 20px;
  }
  
  .certifications-title {
    font-size: 2.2rem;
  }
  
  .flags-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .flag-container {
    width: 80px;
    height: 80px;
  }
  
  .cta-button {
    padding: 15px 30px;
    font-size: 1.1rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

/* Móviles grandes (hasta 576px) */
@media (max-width: 576px) {
  body {
    padding-top: 70px;
  }
  
  .header-container {
    height: 70px;
    padding: 0 15px;
  }
  
  .video-banner {
    height: calc(100vh - 70px);
  }
  
  .video-content h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
  }
  
  .video-content p {
    font-size: 1.2rem;
  }
  
  .logo-container {
    width: 280px;
    height: 78px;
  }
  
  .logo-text {
    font-size: 20px;
  }
  
  .tagline-container {
    padding: 50px 15px;
  }
  
  .tagline-text {
    font-size: 1.6rem;
  }
  
  .service-box {
    height: 450px;
  }
  
  .service-title {
    font-size: 1.8rem;
  }
  
  .carousel-slide {
    height: 250px;
  }
  
  .carousel-btn {
    padding: 10px;
    font-size: 18px;
  }
  
  .timeline-section {
    padding: 50px 15px;
  }
  
  .timeline-title {
    font-size: 1.8rem;
    margin-bottom: 40px;
  }
  
  .timeline-item {
    margin-bottom: 40px;
  }
  
  .timeline-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
  }
  
  .timeline-content {
    padding: 20px;
  }
  
  .timeline-year {
    font-size: 1.3rem;
  }
  
  .timeline-subtitle {
    font-size: 1.2rem;
  }
  
  .clients-section {
    padding: 40px 15px;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .clients-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .clients-stats {
    padding: 30px 20px;
  }
  
  .stat-number {
    font-size: 2.2rem;
  }
  
  .flags-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
  
  .flag-container {
    width: 70px;
    height: 70px;
  }
  
  .footer-logo-img {
    max-width: 220px;
  }
  
  .social-icons a {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
}

/* Móviles pequeños (hasta 480px) */
@media (max-width: 480px) {
  .video-content h1 {
    font-size: 2.4rem;
  }
  
  .video-content p {
    font-size: 1.1rem;
  }
  
  .tagline-text {
    font-size: 1.4rem;
  }
  
  .logo-container {
    width: 250px;
    height: 70px;
  }
  
  .logo-text {
    font-size: 18px;
  }
  
  .service-box {
    height: 400px;
  }
  
  .service-title {
    font-size: 1.6rem;
  }
  
  .carousel-slide {
    height: 200px;
  }
  
  .timeline-item {
    margin-bottom: 35px;
  }
  
  .timeline-icon {
    width: 45px;
    height: 45px;
    margin-bottom: 12px;
  }
  
  .timeline-content {
    padding: 18px;
  }
  
  .timeline-year {
    font-size: 1.2rem;
  }
  
  .timeline-subtitle {
    font-size: 1.1rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .client-logo {
    padding: 15px;
    min-height: 90px;
  }
  
  .client-logo img {
    max-height: 50px;
  }
  
  .flags-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
  
  .flag-container {
    width: 60px;
    height: 60px;
  }
  
  .footer-logo-img {
    max-width: 200px;
  }
}

/* Móviles muy pequeños (hasta 360px) */
@media (max-width: 360px) {
  .video-content h1 {
    font-size: 2rem;
  }
  
  .video-content p {
    font-size: 1rem;
  }
  
  .tagline-text {
    font-size: 1.3rem;
  }
  
  .logo-container {
    width: 220px;
    height: 62px;
  }
  
  .logo-text {
    font-size: 16px;
  }
  
  .service-title {
    font-size: 1.4rem;
  }
  
  .timeline-title {
    font-size: 1.6rem;
  }
  
  .timeline-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 10px;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .flags-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .flag-container {
    width: 55px;
    height: 55px;
  }
}

/* ============================================
   13. ANIMACIONES Y EFECTOS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0);
  }
}

/* Aplicar animaciones */
.client-logo {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

/* Delay para logos de clientes */
.client-logo:nth-child(1) { animation-delay: 0.1s; }
.client-logo:nth-child(2) { animation-delay: 0.2s; }
.client-logo:nth-child(3) { animation-delay: 0.3s; }
.client-logo:nth-child(4) { animation-delay: 0.4s; }
.client-logo:nth-child(5) { animation-delay: 0.5s; }
.client-logo:nth-child(6) { animation-delay: 0.6s; }
.client-logo:nth-child(7) { animation-delay: 0.7s; }
.client-logo:nth-child(8) { animation-delay: 0.8s; }

/* Animación para íconos de certificaciones */
.section-icon {
  animation: pulse 2s infinite;
}

/* Animación para CTA */
.cta-icon {
  animation: float 3s ease-in-out infinite;
}

/* ============================================
   FIN DEL CSS
   ============================================ */