/* ========================================
   JL TECHNICAL SOLUTIONS - CSS PROFESIONAL FINAL
   ========================================
   Sitio web empresarial basado en currículum real
   Empresa: JL Technical Solutions S.A. de C.V. (Fundada 2015)
   Optimizado para todos los dispositivos
   Autor: JL Technical Solutions S.A. de C.V.
   Fecha: 2025
   ======================================== */

/* ========================================
   VARIABLES CSS GLOBALES
   ======================================== */
:root {
  /* COLORES CORPORATIVOS */
  --primary-color: #0a74da;
  --primary-dark: #002f5f;
  --primary-light: #e3f2fd;
  --secondary-color: #d64510;
  --accent-color: #00889a;
  --gold-color: #dce804;

  /* COLORES NEUTROS */
  --white: #ffffff;
  --black: #000000;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* GRADIENTES */
  --primary-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  --hero-gradient: linear-gradient(
    135deg,
    rgba(10, 116, 218, 0.95) 0%,
    rgba(0, 47, 95, 0.95) 50%,
    rgba(10, 116, 218, 0.95) 100%
  );

  /* TIPOGRAFÍA */
  --font-primary: "Inter", sans-serif;
  --font-secondary: "Roboto", sans-serif;

  /* ESPACIADO */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* LAYOUT */
  --container-max-width: 1400px;
  --section-padding: 80px 0;

  /* BORDES Y SOMBRAS */
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* TRANSICIONES */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-INDEX */
  --z-fixed: 1030;
  --z-modal: 1050;
  --z-toast: 1080;
}

/* ========================================
   RESET Y BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-secondary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
  overflow-x: hidden;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* TIPOGRAFÍA */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 3.5rem;
}
h2 {
  font-size: 2.5rem;
}
h3 {
  font-size: 2rem;
}
h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--gray-600);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

/* ========================================
   HEADER Y NAVEGACIÓN - CORREGIDO
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  z-index: var(--z-fixed);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.navbar {
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.nav-logo .logo {
  height: 50px;
  width: auto;
  transition: var(--transition);
}

.nav-logo .logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--gray-700);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.5rem 1rem;
  position: relative;
  transition: var(--transition);
  border-radius: var(--border-radius);
}

.nav-link:hover {
  color: var(--primary-color);
  background: rgba(10, 116, 218, 0.1);
}

.cta-button {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger .bar {
  width: 25px;
  height: 3px;
  background-color: var(--gray-700);
  border-radius: 2px;
  transition: var(--transition);
}

/* ========================================
   HERO SECTION - CORREGIDO PARA VISIBILIDAD
   ======================================== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--hero-gradient);
  background-size: 400% 400%;
  animation: gradientShift 8s ease infinite;
  overflow: hidden;
  padding-top: 80px;
}

@keyframes gradientShift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Orbes de gradiente - OPACIDAD REDUCIDA */
.hero-animated-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 1;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.2; /* REDUCIDO de 0.3 a 0.2 para menos interferencia */
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--gold-color) 0%, transparent 70%);
  top: 10%;
  left: 10%;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
  top: 60%;
  right: 20%;
  animation-delay: 2s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, var(--white) 0%, transparent 70%);
  bottom: 20%;
  left: 60%;
  animation-delay: 4s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-30px) rotate(120deg);
  }
  66% {
    transform: translateY(15px) rotate(240deg);
  }
}

/* Partículas - OPACIDAD REDUCIDA */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  opacity: 0.4; /* REDUCIDO */
}

/* Imagen de fondo - OPACIDAD REDUCIDA */
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 2; /* REDUCIDO de 0.15 a 0.1 */
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--hero-gradient);
  opacity: 0.0; /* AUMENTADO de 0.7 a 0.85 para más contraste */
}

/* Contenido del hero - Z-INDEX AUMENTADO Y BACKDROP AÑADIDO */
.hero-content {
  position: relative;
  z-index: 100;
  text-align: center;
  color: var(--white);
  padding: var(--spacing-3xl) 0;
  /* Añadido backdrop semi-transparente para proteger el texto */
  background: rgba(0, 0, 0, 0.5);
  border-radius: var(--border-radius-xl);
  max-width: 1200px;
  margin: 0 auto;
  backdrop-filter: blur(0px);
}

.certification-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(255, 215, 0, 0.25); /* Aumentado de 0.2 a 0.25 */
  border: 2px solid var(--gold-color);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
  animation: pulse 2s infinite;
  backdrop-filter: blur(10px);
}

.certification-badge i {
  color: var(--gold-color);
  animation: rotate 3s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-xl);
  text-shadow: 3px 3px 12px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.6); /* Sombra mucho más fuerte con doble capa */
  color: var(--white); /* Asegurar color blanco explícito */
}

.title-line {
  display: block;
}

.highlight {
  background: linear-gradient(45deg, var(--gold-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none; /* Remover sombra del texto con gradiente */
  filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.8)); /* Usar drop-shadow en su lugar */
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-2xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  opacity: 1; /* Cambiado de 0.95 a 1 para máxima visibilidad */
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8), 0 0 15px rgba(0, 0, 0, 0.5); /* Sombra más fuerte */
  color: var(--white); /* Asegurar color blanco explícito */
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 1rem 2rem;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: 1.125rem;
  transition: var(--transition);
}

.hero-cta.primary {
  background: var(--secondary-color);
  color: var(--white);
  box-shadow: var(--shadow-xl);
}

.hero-cta.secondary {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
}

.hero-cta:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-2xl);
}

.trust-indicators {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 500;
  text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8), 0 0 10px rgba(0, 0, 0, 0.5); /* Sombra más fuerte */
  color: var(--white); /* Asegurar color blanco explícito */
}

.trust-item i {
  font-size: 1.5rem;
  color: var(--gold-color);
  filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.8)); /* Añadir sombra a los iconos */
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
}

.scroll-arrow {
  width: 30px;
  height: 30px;
  border: 2px solid var(--white);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0) rotate(45deg);
  }
  40% {
    transform: translateY(-10px) rotate(45deg);
  }
  60% {
    transform: translateY(-5px) rotate(45deg);
  }
}

/* ========================================
   SECCIONES GENERALES
   ======================================== */
section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--spacing-lg);
}

.title-decoration {
  display: inline-block;
  width: 60px;
  height: 4px;
  background: var(--primary-gradient);
  margin: 0 var(--spacing-lg);
  vertical-align: middle;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 800px;
  margin: 0 auto;
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services {
  background: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.service-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
}

.service-icon i {
  font-size: 2.5rem;
  color: var(--primary-color);
  z-index: 2;
  transition: var(--transition);
}

.icon-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--primary-light);
  border-radius: 50%;
  transition: var(--transition);
}

.service-card:hover .icon-bg {
  background: var(--primary-color);
}

.service-card:hover .service-icon i {
  color: var(--white);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

.service-description {
  color: var(--gray-600);
  margin-bottom: var(--spacing-lg);
}

.service-features {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.feature {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
  position: relative;
  overflow: hidden;
}

.about::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(10, 116, 218, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.about::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite reverse;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.about-text {
  animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.about-description {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

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

.mission-box {
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(0, 188, 212, 0.1) 100%);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border-left: 4px solid var(--primary-color);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  animation: fadeInUp 0.8s ease-out 0.4s both;
  position: relative;
  overflow: hidden;
}

.mission-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, rgba(10, 116, 218, 0.05) 100%);
  opacity: 0;
  transition: var(--transition);
}

.mission-box:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-lg);
  border-left-width: 6px;
}

.mission-box:hover::before {
  opacity: 1;
}

.mission-box h3 {
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.mission-box h3 i {
  animation: pulse 2s ease-in-out infinite;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.stat {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease-out both;
}

.stat:nth-child(1) {
  animation-delay: 0.5s;
}

.stat:nth-child(2) {
  animation-delay: 0.6s;
}

.stat:nth-child(3) {
  animation-delay: 0.7s;
}

.stat:nth-child(4) {
  animation-delay: 0.8s;
}

.stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.stat:nth-child(2)::before {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #ff8c5a 100%);
}

.stat:nth-child(3)::before {
  background: linear-gradient(135deg, var(--accent-color) 0%, #00e5ff 100%);
}

.stat:nth-child(4)::before {
  background: linear-gradient(135deg, var(--gold-color) 0%, #ffed4e 100%);
}

.stat:hover::before {
  transform: scaleX(1);
}

.stat:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: var(--shadow-xl);
}

.stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  background: var(--primary-light);
  border-radius: 50%;
  margin-bottom: var(--spacing-md);
  transition: var(--transition);
  position: relative;
}

.stat:nth-child(1) .stat-icon {
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(10, 116, 218, 0.2) 100%);
}

.stat:nth-child(2) .stat-icon {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 107, 53, 0.2) 100%);
}

.stat:nth-child(3) .stat-icon {
  background: linear-gradient(135deg, rgba(0, 188, 212, 0.1) 0%, rgba(0, 188, 212, 0.2) 100%);
}

.stat:nth-child(4) .stat-icon {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 215, 0, 0.2) 100%);
}

.stat:hover .stat-icon {
  transform: rotate(360deg) scale(1.1);
}

.stat-icon i {
  font-size: 1.75rem;
  color: var(--primary-color);
  transition: var(--transition);
}

.stat:nth-child(2) .stat-icon i {
  color: var(--secondary-color);
}

.stat:nth-child(3) .stat-icon i {
  color: var(--accent-color);
}

.stat:nth-child(4) .stat-icon i {
  color: var(--gold-color);
}

.stat-number {
  display: block;
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  transition: var(--transition);
}

.stat:nth-child(2) .stat-number {
  color: var(--secondary-color);
}

.stat:nth-child(3) .stat-number {
  color: var(--accent-color);
}

.stat:nth-child(4) .stat-number {
  color: var(--gold-color);
}

.stat:hover .stat-number {
  transform: scale(1.1);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.about-image {
  animation: slideInRight 0.8s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.image-container {
  position: relative;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

/* Imagen más grande en la sección Nosotros */
.about-img {
  width: 110%;
  height: 800px;
  object-fit: cover;
  transition: var(--transition-slow);
}

.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 10, 114, 0.813) 0%, rgba(0, 12, 60, 0.8) 100%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-overlay::after {
  content: "JL Technical Solutions";
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
}

.image-container:hover .image-overlay {
  opacity: 1;
}

.image-container:hover .image-overlay::after {
  opacity: 1;
  transform: translateY(0);
}

.image-container:hover .about-img {
  transform: scale(1.1);
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects {
  background: var(--gray-50);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.project-image-container {
  position: relative;
  overflow: hidden;
  height: 250px;
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 116, 218, 0.9), rgba(0, 47, 95, 0.9));
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-card:hover .project-image {
  transform: scale(1.1);
}

.project-content {
  text-align: center;
  color: var(--white);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.project-tags {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.tag {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
}

/* ========================================
   PHOTO GALLERY SECTION
   ======================================== */
.photo-gallery {
  background: var(--white);
}

.gallery-filters {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  background: var(--white);
  color: var(--gray-600);
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius-lg);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.gallery-item {
  transition: var(--transition);
}

.gallery-image-container {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  height: 300px;
  cursor: pointer;
}

.gallery-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 116, 218, 0.9), rgba(0, 47, 95, 0.9));
  opacity: 0;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--spacing-lg);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-item:hover .gallery-image {
  transform: scale(1.1);
}

.gallery-info {
  color: var(--white);
}

.gallery-info h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.gallery-info p {
  font-size: 0.875rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.gallery-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.gallery-zoom {
  align-self: flex-end;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.125rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.gallery-zoom:hover {
  background: var(--white);
  color: var(--primary-color);
  transform: scale(1.1);
}

/* ========================================
   PARTNERS SECTION
   ======================================== */
.partners {
  background: var(--gray-50);
}

.partners-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.partner-category {
  text-align: center;
}

.category-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.category-title i {
  color: var(--primary-color);
}

.partner-logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  justify-items: center;
}

.partner-logo {
  position: relative;
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  width: 100%;
  max-width: 300px;
  text-align: center;
}

.partner-logo:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.logo-img {
  width: 100%;
  height: 80px;
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
  filter: grayscale(100%);
  transition: var(--transition);
}

.partner-logo:hover .logo-img {
  filter: grayscale(0%);
}

.logo-overlay {
  opacity: 0;
  transition: var(--transition);
}

.partner-logo:hover .logo-overlay {
  opacity: 1;
}

.logo-overlay span {
  display: block;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.logo-overlay small {
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* ========================================
   CONTACT SECTION - FORMULARIO MEJORADO CON ANIMACIONES
   ======================================== */
.contact {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}

/* Elementos decorativos animados para el formulario */
.contact::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(10, 116, 218, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.contact::after {
  content: "";
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 188, 212, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
  position: relative;
  z-index: 2;
}

/* Formulario con diseño mejorado y animaciones */
.contact-form-container {
  background: var(--white);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease-out;
}

.contact-form-container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-gradient);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.form-group {
  position: relative;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.6s ease-out both;
}

.form-group:nth-child(1) {
  animation-delay: 0.1s;
}

.form-group:nth-child(2) {
  animation-delay: 0.2s;
}

.form-group:nth-child(3) {
  animation-delay: 0.3s;
}

.form-group:nth-child(4) {
  animation-delay: 0.4s;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
  transition: var(--transition);
}

.form-group:focus-within label {
  color: var(--primary-color);
}

/* Inputs con animaciones y mejor diseño */
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 0.875rem 0.875rem 2.75rem;
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  background: var(--white);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--primary-color);
  box-shadow: 0 2px 8px rgba(10, 116, 218, 0.1);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(10, 116, 218, 0.15);
  transform: translateY(-2px);
}

/* Iconos perfectamente alineados y con animaciones */
.form-icon {
  position: absolute;
  left: 1rem;
  top: 2.75rem;
  color: var(--gray-400);
  font-size: 1rem;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.form-group:focus-within .form-icon {
  color: var(--primary-color);
  transform: scale(1.1);
}

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

.form-group textarea + .form-icon {
  top: 3rem;
}

/* Botón de envío con animaciones mejoradas */
.submit-btn {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 1rem 2rem;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s ease-out 0.5s both;
}

.submit-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.submit-btn:hover::before {
  width: 300px;
  height: 300px;
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(10, 116, 218, 0.4);
}

.submit-btn:active {
  transform: translateY(-1px);
}

.btn-icon {
  transition: transform 0.3s ease;
}

.submit-btn:hover .btn-icon {
  transform: translateX(5px);
}

/* Información de contacto con animaciones */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--white);
  border-radius: var(--border-radius-lg);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  animation: fadeInRight 0.6s ease-out both;
  position: relative;
  overflow: hidden;
}

.info-item:nth-child(1) {
  animation-delay: 0.2s;
}

.info-item:nth-child(2) {
  animation-delay: 0.3s;
}

.info-item:nth-child(3) {
  animation-delay: 0.4s;
}

.info-item:nth-child(4) {
  animation-delay: 0.5s;
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.info-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 0;
  background: var(--primary-gradient);
  transition: height 0.3s ease;
}

.info-item:hover::before {
  height: 100%;
}

.info-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(5px);
}

/* Iconos de información perfectamente centrados */
.info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--primary-light);
  border-radius: 50%;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.info-item:hover .info-icon {
  transform: rotate(360deg) scale(1.1);
  background: var(--primary-gradient);
}

.info-icon i {
  font-size: 1.25rem;
  color: var(--primary-color);
  transition: var(--transition);
}

.info-item:hover .info-icon i {
  color: var(--white);
}

.info-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.info-content p {
  color: var(--gray-700);
  margin-bottom: var(--spacing-xs);
}

.info-content p a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 600;
}

.info-content p a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.info-content small {
  color: var(--gray-500);
  font-size: 0.875rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-3xl) 0 var(--spacing-lg) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.footer-logo-img {
  height: 50px;
  width: auto;
  margin-bottom: var(--spacing-lg);
  filter: brightness(0) invert(1);
}

.footer-description {
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-400);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  color: var(--gray-400);
  border-radius: 50%;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: var(--gray-400);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-color);
  padding-left: var(--spacing-sm);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--gray-400);
  margin-bottom: var(--spacing-xs);
}

.footer-contact i {
  color: var(--primary-color);
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--gray-500);
}

/* ========================================
   WHATSAPP BUTTON - CORREGIDO
   ======================================== */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.75rem;
  box-shadow: var(--shadow-xl);
  z-index: var(--z-fixed);
  transition: var(--transition);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-2xl);
}

.whatsapp-tooltip {
  position: absolute;
  right: 70px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--gray-900);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/* ========================================
   LIGHTBOX MEJORADO CON NAVEGACIÓN
   ======================================== */
.lightbox {
  display: none;
  position: fixed;
  z-index: var(--z-toast);
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.lightbox-content {
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-2xl);
  transition: opacity 0.2s ease;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: var(--white);
  font-size: 3rem;
  font-weight: 300;
  cursor: pointer;
  transition: var(--transition);
  z-index: 1;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.lightbox-close:hover {
  background: var(--secondary-color);
  transform: rotate(90deg) scale(1.1);
  border-color: var(--secondary-color);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: 1rem 1.25rem;
  font-size: 1.5rem;
  cursor: pointer;
  border-radius: var(--border-radius-lg);
  transition: var(--transition);
  backdrop-filter: blur(10px);
  z-index: 1;
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-caption {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: center;
  background: rgba(0, 0, 0, 0.7);
  padding: 1rem 2rem;
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
  max-width: 80%;
}

.lightbox-counter {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.7);
  padding: 0.5rem 1.5rem;
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
}

/* ========================================
   CERTIFICATES SECTION - NUEVA SECCIÓN
   Estilos para la sección de certificados PDF
   ======================================== */
   
.certificates {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.certificate-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  border: 2px solid transparent;
}

.certificate-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--primary-dark);
}

.certificate-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color));
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 2rem;
  box-shadow: var(--shadow-lg);
}

.certificate-content {
  flex: 1;
}

.certificate-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.certificate-description {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin-bottom: var(--spacing-sm);
}

.certificate-year {
  display: inline-block;
  background: var(--gray-100);
  color: var(--gray-700);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
}

.certificate-view-btn {
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: linear-gradient(135deg, var(--primary-dark));
  color: var(--white);
  border: none;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: var(--text-base);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.certificate-view-btn:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl);
}

.certificate-view-btn i {
  font-size: 1.125rem;
}

/* Modal para visualizar certificados PDF */
.certificate-modal {
  display: none;
  position: fixed;
  z-index: var(--z-modal);
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.certificate-modal-content {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  width: 90%;
  max-width: 1000px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
}

.certificate-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: linear-gradient(135deg, var(--primary-dark));
  color: var(--white);
}

.certificate-modal-header h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 0;
  color: var(--white);
}

.certificate-modal-close {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: var(--white);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.25rem;
}

.certificate-modal-close:hover {
  background: var(--white);
  color: var(--primary-color);
  transform: rotate(90deg);
}

.certificate-modal-body {
  flex: 1;
  padding: 0;
  overflow: hidden;
}

.certificate-modal-body iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.certificate-modal-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: center;
}


/* Responsive para certificados */
@media (max-width: 768px) {
  .certificates-grid {
    grid-template-columns: 1fr;
  }

  .certificate-modal-content {
    width: 95%;
    height: 90vh;
  }

  .certificate-modal-header {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .certificate-modal-header h3 {
    font-size: var(--text-lg);
  }

  .certificate-modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Tablets (768px - 1199px) */
@media (max-width: 1199px) {
  .container {
    padding: 0 30px;
  }

  .nav-container {
    padding: 0 30px;
  }

  .services-grid,
  .projects-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Imagen responsive en tablet */
  .about-img {
    height: 500px;
  }
}

/* Móviles (max-width: 767px) */
@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }

  .nav-container {
    padding: 0 20px;
  }

  h1 {
    font-size: 2.5rem;
  }
  h2 {
    font-size: 2rem;
  }
  h3 {
    font-size: 1.5rem;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    width: 100%;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-xl);
    padding: 2rem 0;
    border-top: 1px solid var(--gray-200);
    backdrop-filter: blur(20px);
    z-index: var(--z-modal);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-link {
    font-size: 1.125rem;
    padding: 1rem 2rem;
    display: block;
  }

  .cta-button {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .services-grid,
  .projects-grid,
  .gallery-grid,
  .partner-logos {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .trust-indicators {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .whatsapp-float {
    width: 55px;
    height: 55px;
    font-size: 1.5rem;
    bottom: 15px;
    right: 15px;
  }

  .whatsapp-tooltip {
    display: none;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  /* Iconos alineados en móvil */
  .form-icon {
    top: 2.75rem;
  }

  section {
    padding: 60px 0;
  }

  .lightbox-content {
    max-width: 95%;
    max-height: 70vh;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
    font-size: 2rem;
    width: 40px;
    height: 40px;
  }

  .lightbox-prev,
  .lightbox-next {
    padding: 0.75rem 1rem;
    font-size: 1.25rem;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-caption {
    bottom: 15px;
    font-size: 0.875rem;
    padding: 0.75rem 1.5rem;
    max-width: 90%;
  }

  .lightbox-counter {
    top: 10px;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
  }

  /* Imagen responsive en móvil */
  .about-img {
    height: 400px;
  }
}

/* Móviles pequeños (max-width: 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .whatsapp-float {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }
}