:root {
    --negro: #0a0a0a;
    --azul: #1976d2;
    --azul-oscuro: #0d47a1;
    --celeste: #00bcd4;
    --blanco: #ffffff;
    --gris: #f8f9fa;
    --gris-oscuro: #e0e0e0;
    --rojo: #ff4d4d;
    --verde-whatsapp: #25D366;
    --sombra-tarjeta: 0 10px 30px rgba(0, 0, 0, 0.1);
    --sombra-texto: 0 2px 4px rgba(0,0,0,0.3);
    --degradado-azul: linear-gradient(135deg, #1976d2 0%, #00bcd4 100%);
    --degradado-azul-inverso: linear-gradient(135deg, #00bcd4 0%, #1976d2 100%);
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Poppins', sans-serif;
    background: var(--gris);
    color: var(--negro);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
  }

  /* Language Switcher */
  .language-switcher {
    position: relative;
    display: inline-block;
    margin-left: 20px;
  }

  .language-button {
    background: rgba(255,255,255,0.1);
    border: none;
    color: var(--blanco);
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
  }

  .language-button:hover {
    background: rgba(255,255,255,0.2);
  }

  .language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--blanco);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 10px 0;
    min-width: 120px;
    z-index: 1000;
    display: none;
  }

  .language-switcher:hover .language-dropdown {
    display: block;
  }

  .language-option {
    padding: 8px 15px;
    color: var(--negro);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
  }

  .language-option:hover {
    background: var(--gris);
  }

  /* Dark Mode Toggle */
  .dark-mode-toggle {
    background: transparent;
    border: none;
    color: var(--blanco);
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: 15px;
    transition: all 0.3s ease;
  }

  .dark-mode-toggle:hover {
    transform: scale(1.1);
  }
  
  /* WhatsApp Button Fixed */
  .whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: var(--verde-whatsapp);
    color: var(--blanco);
    border-radius: 50%;
    text-align: center;
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
  }
  
  .whatsapp-float:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  }
  
  .whatsapp-float i {
    font-size: 28px;
  }
  
  /* Header Moderno con Glassmorphism */
  header {
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 15px 5%;
    color: var(--blanco);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: all 0.4s ease;
  }
  
  header.scrolled {
    padding: 10px 5%;
    background: rgba(10, 10, 10, 0.95);
  }
  
  .logo-title {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .logo-title img {
    height: 42px;
    width: auto;
    transition: all 0.3s ease;
  }
  
  header.scrolled .logo-title img {
    height: 36px;
  }
  
  .logo-title h1 {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 1px;
    background: var(--degradado-azul);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transition: all 0.3s ease;
  }
  
  header.scrolled .logo-title h1 {
    font-size: 1.6rem;
  }
  
  nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
    align-items: center;
  }
  
  nav ul li a {
    position: relative;
    color: var(--blanco);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    transition: all 0.3s ease;
  }
  
  nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--rojo);
    transition: width 0.3s ease;
  }
  
  nav ul li a:hover {
    color: var(--celeste);
  }
  
  nav ul li a:hover::after {
    width: 100%;
  }
  
  /* Hamburger Menu */
  .hamburger {
    display: none;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 10px;
    z-index: 1001;
  }
  
  .hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--blanco);
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
  }
  
  .hamburger.is-active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.is-active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.is-active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  /* Hero Section with Parallax */
  .hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    background: url('https://images.unsplash.com/photo-1519389950473-47ba0277781c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    overflow: hidden;
  }
  
  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1;
  }
  
  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    padding: 0 5%;
    color: var(--blanco);
  }
  
  .hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: var(--sombra-texto);
  }
  
  .hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin-bottom: 2rem;
    text-shadow: var(--sombra-texto);
  }
  
  .cta-button {
    display: inline-block;
    background: var(--rojo);
    color: var(--blanco);
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(255, 77, 77, 0.3);
  }
  
  .cta-button:hover {
    background: #ff3333;
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(255, 77, 77, 0.4);
  }
  
  /* About Section */
  .section {
    padding: 100px 5%;
    position: relative;
  }
  
  .section-title {
    text-align: center;
    margin-bottom: 70px;
  }
  
  .section-title h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.8rem;
    font-weight: 900;
    background: var(--degradado-azul);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    position: relative;
  }
  
  .section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--degradado-azul);
    border-radius: 2px;
  }
  
  .about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .about-text {
    flex: 1;
  }
  
  .about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--negro);
  }
  
  .about-text p {
    margin-bottom: 1.5rem;
    color: #555;
  }
  
  .about-image {
    flex: 1;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--sombra-tarjeta);
    transition: all 0.5s ease;
  }
  
  .about-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
  }
  
  .about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
  }
  
  .about-image:hover img {
    transform: scale(1.05);
  }
  
  /* Services Section */
  .services {
    background: url('https://images.unsplash.com/photo-1504384308090-c894fdcc538d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
    background-attachment: fixed;
    position: relative;
    padding: 120px 5%;
  }
  
  .services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1;
  }
  
  .services-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
  }
  
  .service-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.5s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--blanco);
  }
  
  .service-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
  }
  
  .service-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--celeste);
    transition: all 0.3s ease;
  }
  
  .service-card:hover .service-icon {
    transform: scale(1.1);
    color: var(--rojo);
  }
  
  .service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
  }
  
  .service-card p {
    opacity: 0.9;
  }

  /* Specialized Solutions Section */
  .solutions-section {
    position: relative;
    overflow: hidden;
    padding: 120px 5%;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
  }

  .solutions-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
    background-attachment: fixed;
    opacity: 0.1;
    z-index: 1;
  }

  .solutions-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
  }

  .solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
  }

  .solution-card {
    background: var(--blanco);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
  }

  .solution-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
  }

  .solution-card-header {
    background: var(--degradado-azul);
    color: var(--blanco);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .solution-card-header::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
      to bottom right,
      rgba(255,255,255,0.3) 0%,
      rgba(255,255,255,0) 60%
    );
    transform: rotate(30deg);
    transition: all 0.5s ease;
  }

  .solution-card:hover .solution-card-header::after {
    transform: rotate(30deg) translate(20%, 20%);
  }

  .solution-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--blanco);
    transition: all 0.3s ease;
  }

  .solution-card:hover .solution-icon {
    transform: rotate(10deg) scale(1.1);
  }

  .solution-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    font-weight: 700;
  }

  .solution-card-body {
    padding: 30px;
  }

  .solution-card-body p {
    color: #555;
    margin-bottom: 20px;
  }

  .solution-features {
    margin-top: 20px;
  }

  .solution-features li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
    color: #555;
  }

  .solution-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--azul);
  }

  .solution-cta {
    display: inline-block;
    background: var(--azul);
    color: var(--blanco);
    padding: 10px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: 15px;
    border: 2px solid var(--azul);
  }

  .solution-cta:hover {
    background: transparent;
    color: var(--azul);
  }
  
  /* Stats Section */
  .stats {
    background: var(--degradado-azul);
    padding: 80px 5%;
    color: var(--blanco);
    text-align: center;
  }
  
  .stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
  }
  
  .stat-item {
    padding: 30px;
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    transition: all 0.5s ease;
  }

  .stat-item:hover {
    transform: translateY(-10px);
    background: rgba(255,255,255,0.15);
  }
  
  .stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
  }

  .stat-number::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--blanco);
    opacity: 0.5;
    transition: all 0.3s ease;
  }

  .stat-item:hover .stat-number::after {
    width: 80px;
    opacity: 1;
  }
  
  .stat-text {
    font-size: 1.1rem;
    opacity: 0.9;
  }

  /* Testimonials Section */
  .testimonials {
    padding: 100px 5%;
    background: var(--gris);
  }

  .testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
  }

  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
  }

  .testimonial-card {
    background: var(--blanco);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--sombra-tarjeta);
    position: relative;
    transition: all 0.3s ease;
  }

  .testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  }

  .testimonial-quote {
    font-size: 1rem;
    color: #555;
    margin-bottom: 20px;
    position: relative;
    padding-left: 30px;
  }

  .testimonial-quote::before {
    content: '\201C';
    font-family: Georgia, serif;
    font-size: 3rem;
    color: var(--azul);
    position: absolute;
    left: -15px;
    top: -15px;
    opacity: 0.3;
  }

  .testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
  }

  .testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
  }

  .author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
  }

  .author-info p {
    font-size: 0.9rem;
    color: #777;
  }

  /* Contact Section */
  .contact-section {
    position: relative;
    padding: 120px 5%;
    background: url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
    background-attachment: fixed;
  }

  .contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 1;
  }

  .contact-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 50px;
    background: rgba(255,255,255,0.9);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.2);
  }

  .contact-info {
    padding: 60px;
    background: var(--degradado-azul-inverso);
    color: var(--blanco);
  }

  .contact-info h3 {
    font-size: 2rem;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
  }

  .contact-info h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--blanco);
  }

  .contact-info p {
    margin-bottom: 30px;
    opacity: 0.9;
  }

  .contact-details {
    margin-bottom: 40px;
  }

  .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 25px;
  }

  .contact-icon {
    font-size: 1.2rem;
    background: rgba(255,255,255,0.2);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
  }

  .contact-item:hover .contact-icon {
    background: var(--blanco);
    color: var(--azul);
    transform: rotate(15deg) scale(1.1);
  }

  .contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
  }

  .contact-text p {
    margin: 0;
    opacity: 0.8;
  }

  .social-links-contact {
    display: flex;
    gap: 15px;
  }

  .social-links-contact a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    color: var(--blanco);
    transition: all 0.3s ease;
  }

  .social-links-contact a:hover {
    background: var(--blanco);
    color: var(--azul);
    transform: translateY(-5px);
  }

  .contact-form {
    padding: 60px;
  }

  .contact-form h3 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--azul-oscuro);
    position: relative;
    padding-bottom: 15px;
  }

  .contact-form h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--azul);
  }

  .form-group {
    margin-bottom: 25px;
    position: relative;
  }

  .form-group label {
    position: absolute;
    top: -10px;
    left: 15px;
    background: var(--blanco);
    padding: 0 10px;
    font-size: 0.9rem;
    color: var(--azul);
    z-index: 2;
  }

  .form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--gris-oscuro);
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--blanco);
  }

  .form-control:focus {
    outline: none;
    border-color: var(--azul);
    box-shadow: 0 5px 15px rgba(25, 118, 210, 0.1);
  }

  textarea.form-control {
    min-height: 150px;
    resize: vertical;
  }

  .submit-btn {
    background: var(--azul);
    color: var(--blanco);
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    box-shadow: 0 10px 20px rgba(25, 118, 210, 0.2);
  }

  .submit-btn:hover {
    background: var(--azul-oscuro);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(25, 118, 210, 0.3);
  }

  /* Footer */
  footer {
    background: var(--negro);
    color: var(--blanco);
    padding: 80px 5% 30px;
    position: relative;
  }
  
  .footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
  }
  
  .footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
  }
  
  .footer-col h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--rojo);
  }
  
  .footer-col p {
    margin-bottom: 20px;
    opacity: 0.8;
  }
  
  .social-links {
    display: flex;
    gap: 15px;
  }
  
  .social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--blanco);
    transition: all 0.3s ease;
  }
  
  .social-links a:hover {
    background: var(--rojo);
    transform: translateY(-3px);
  }
  
  .footer-col ul {
    list-style: none;
  }
  
  .footer-col ul li {
    margin-bottom: 15px;
  }
  
  .footer-col ul li a {
    color: var(--blanco);
    opacity: 0.8;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 20px;
  }
  
  .footer-col ul li a::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--rojo);
    transition: all 0.3s ease;
    opacity: 0;
  }
  
  .footer-col ul li a:hover {
    opacity: 1;
    padding-left: 25px;
  }
  
  .footer-col ul li a:hover::before {
    opacity: 1;
  }
  
  .copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.7;
  }

  /* Cookie Consent Banner */
  .cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.9);
    color: var(--blanco);
    padding: 20px;
    z-index: 999;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    transform: translateY(100%);
    transition: transform 0.3s ease;
  }

  .cookie-consent.show {
    transform: translateY(0);
  }

  .cookie-text {
    flex: 1;
    min-width: 250px;
    margin-right: 20px;
    margin-bottom: 15px;
  }

  .cookie-buttons {
    display: flex;
    gap: 10px;
  }

  .cookie-btn {
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
  }

  .cookie-accept {
    background: var(--azul);
    color: var(--blanco);
    border: none;
  }

  .cookie-accept:hover {
    background: var(--azul-oscuro);
  }

  .cookie-decline {
    background: transparent;
    color: var(--blanco);
    border: 1px solid var(--blanco);
  }

  .cookie-decline:hover {
    background: rgba(255,255,255,0.1);
  }

  /* Back to Top Button */
  .back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--azul);
    color: var(--blanco);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
  }

  .back-to-top.show {
    opacity: 1;
    visibility: visible;
  }

  .back-to-top:hover {
    background: var(--azul-oscuro);
    transform: translateY(-5px);
  }

  /* Responsive Styles */
  @media (max-width: 1200px) {
    .contact-container {
      grid-template-columns: 1fr;
    }

    .contact-info, .contact-form {
      padding: 40px;
    }
  }
  
  @media (max-width: 992px) {
    .hamburger {
      display: block;
    }
    
    nav ul {
      position: fixed;
      top: 80px;
      left: -100%;
      width: 100%;
      height: calc(100vh - 80px);
      background: rgba(10, 10, 10, 0.95);
      backdrop-filter: blur(15px);
      -webkit-backdrop-filter: blur(15px);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 40px;
      transition: all 0.5s ease;
    }
    
    nav ul.active {
      left: 0;
    }
    
    .hero h1 {
      font-size: 3rem;
    }
    
    .about-content {
      flex-direction: column;
    }
    
    .about-text, .about-image {
      width: 100%;
    }

    .solutions-grid {
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
  }
  
  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.5rem;
    }
    
    .hero p {
      font-size: 1rem;
    }
    
    .section-title h2 {
      font-size: 2.2rem;
    }
    
    .service-card {
      padding: 30px 20px;
    }

    .contact-container {
      grid-template-columns: 1fr;
    }

    .contact-info, .contact-form {
      padding: 30px;
    }

    .cookie-consent {
      flex-direction: column;
      text-align: center;
    }

    .cookie-text {
      margin-right: 0;
      margin-bottom: 15px;
    }

    .cookie-buttons {
      width: 100%;
      justify-content: center;
    }
  }
  
  @media (max-width: 576px) {
    .hero h1 {
      font-size: 2rem;
    }
    
    .cta-button {
      padding: 12px 30px;
      font-size: 1rem;
    }
    
    .stats-container {
      grid-template-columns: 1fr;
    }

    .solutions-grid {
      grid-template-columns: 1fr;
    }

    .contact-container {
      grid-template-columns: 1fr;
      gap: 0;
    }

    .contact-info, .contact-form {
      padding: 25px;
    }

    .back-to-top {
      width: 40px;
      height: 40px;
      bottom: 90px;
      right: 20px;
    }
  }

  /* Dark Mode Styles */
  body.dark-mode {
    background: #121212;
    color: #e0e0e0;
  }

  body.dark-mode .about-text h3,
  body.dark-mode .about-text p,
  body.dark-mode .solution-card-body p,
  body.dark-mode .solution-features li,
  body.dark-mode .testimonial-quote,
  body.dark-mode .contact-form h3,
  body.dark-mode .form-control,
  body.dark-mode .form-group label {
    color: #e0e0e0;
  }

  body.dark-mode .solutions-section {
    background: #1e1e1e;
  }

  body.dark-mode .solution-card {
    background: #2d2d2d;
  }

  body.dark-mode .solution-card-body p,
  body.dark-mode .solution-features li {
    color: #b0b0b0;
  }

  body.dark-mode .testimonial-card {
    background: #2d2d2d;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  }

  body.dark-mode .testimonial-quote {
    color: #b0b0b0;
  }

  body.dark-mode .author-info p {
    color: #909090;
  }

  body.dark-mode .contact-form {
    background: #2d2d2d;
  }

  body.dark-mode .form-control {
    background: #3d3d3d;
    border-color: #4d4d4d;
    color: #e0e0e0;
  }

  body.dark-mode .form-group label {
    background: #2d2d2d;
  }

  body.dark-mode .contact-form h3 {
    color: var(--celeste);
  }

  body.dark-mode .contact-form h3::after {
    background: var(--celeste);
  }