/* Estilos generales */
  :root {
    --primary-color: #25D366; /* Verde WhatsApp */
    --secondary-color: #128C7E; /* Verde WhatsApp oscuro */
    --accent-color: #075E54; /* Verde más oscuro */
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --white: #ffffff;
    --black: #000000;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
  }

  body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
  }

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

  /* Preloader */
  .preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
  }

  .loader {
    display: flex;
    gap: 8px;
  }

  .loader-square {
    width: 16px;
    height: 16px;
    background-color: var(--primary-color);
    animation: loaderAnimation 1.2s infinite ease-in-out;
  }

  .loader-square:nth-child(1) { animation-delay: 0s; }
  .loader-square:nth-child(2) { animation-delay: 0.15s; }
  .loader-square:nth-child(3) { animation-delay: 0.3s; }
  .loader-square:nth-child(4) { animation-delay: 0.45s; }
  .loader-square:nth-child(5) { animation-delay: 0.6s; }
  .loader-square:nth-child(6) { animation-delay: 0.75s; }
  .loader-square:nth-child(7) { animation-delay: 0.9s; }

  @keyframes loaderAnimation {
    0%, 40%, 100% { transform: scaleY(0.6); }
    20% { transform: scaleY(1); }
  }

  /* Navbar */
  .navbar {
    padding: 15px 0;
    transition: var(--transition);
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.0);
  }

  .navbar.scrolled {
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.25);
  }

  .navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--accent-color);
    display: flex;
    align-items: center;
  }
  .navbar-brand:hover{
    color: var(--primary-color);
  }

  .navbar-brand i {
    color: var(--primary-color);
  }

  .nav-link {
    font-weight: 500;
    color: var(--dark-color);
    padding: 8px 15px !important;
    margin: 0 5px;
    border-radius: 5px;
  }

  .nav-link:hover, .nav-link:focus {
    color: var(--primary-color);
    background-color: rgba(37, 211, 102, 0.1);
  }

  .navbar-toggler {
    border: none;
    padding: 0.5rem;
  }

  .navbar-toggler:focus {
    box-shadow: none;
  }

  /* Hero Section */
  .hero {
    padding: 120px 0 80px;
    background-color: var(--white);
  }

  .hero h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--accent-color);
  }

  .hero p.lead {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
  }

  .hero img {
    border-radius: 10px;
    box-shadow: var(--box-shadow);
  }

  .btn {
    padding: 12px 24px;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
  }

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

  .btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.2);
  }

  /* Features Section */
  .features {
    padding: 80px 0;
    background-color: var(--light-color);
  }

  .section-title {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
  }

  .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 0 auto;
  }

  .section-subtitle {
    color: var(--gray-color);
    margin-bottom: 40px;
  }

  .feature-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    text-align: center;
  }

  .feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  }

  .feature-card .icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
  }

  .feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-color);
  }

  .feature-card p {
    color: var(--gray-color);
  }

  /* Demo Video Section */
  .demo-video {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--white);
  }

  .demo-video h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
  }

  .demo-video p {
    margin-bottom: 30px;
    opacity: 0.9;
  }

  .demo-video li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 30px;
  }

  .demo-video li i {
    position: absolute;
    left: 0;
    top: 3px;
  }

  .video-container {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
  }

  .video-container img {
    width: 100%;
    transition: var(--transition);
  }

  .video-container:hover img {
    transform: scale(1.03);
  }

  /* How It Works Section */
  .how-it-works {
    padding: 80px 0;
    background-color: var(--white);
  }

  .step-card {
    text-align: center;
    padding: 30px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
  }

  .step-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  }

  .step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
  }

  .step-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
  }

  .step-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-color);
  }

  .step-card p {
    color: var(--gray-color);
  }

  /* FAQ Section */
  .faq {
    padding: 80px 0;
  }

  .accordion-button {
    font-weight: 600;
    padding: 15px 20px;
    background-color: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.1);
  }

  .accordion-button:not(.collapsed) {
    background-color: rgba(37, 211, 102, 0.1);
    color: var(--accent-color);
    border-color: rgba(37, 211, 102, 0.2);
  }

  .accordion-button:focus {
    box-shadow: none;
    border-color: rgba(37, 211, 102, 0.5);
  }

  .accordion-body {
    padding: 20px;
  }

  /* Contact Section */
  .contact {
    padding: 80px 0;
    background-color: var(--light-color);
  }

  .contact h2 {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
  }

  .contact p {
    color: var(--gray-color);
    margin-bottom: 30px;
  }

  .contact-info .icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .contact-info h5 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--accent-color);
  }

  .contact-form {
    background-color: var(--white);
  }

  .contact-form h4 {
    color: var(--accent-color);
    margin-bottom: 20px;
  }

  .form-control {
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: var(--transition);
  }

  .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(37, 211, 102, 0.25);
  }

  /* Footer */
  .footer {
    background-color: var(--accent-color);
    color: var(--white);
    padding: 60px 0 20px;
  }

  .footer-brand {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
  }

  .footer-brand img {
    margin-right: 10px;
  }

  .footer-brand .brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
  }

  .footer h5 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white);
  }

  .footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
  }

  .footer a:hover {
    color: var(--primary-color);
    padding-left: 5px;
  }

  .footer hr {
    border-color: rgba(255, 255, 255, 0.1);
  }

  /* Back to Top Button */
  .back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

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

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

  /* Responsive adjustments */
  @media (max-width: 991.98px) {
    .hero h1 {
      font-size: 2.3rem;
    }
    
    .section-title {
      font-size: 1.8rem;
    }
  }

  @media (max-width: 767.98px) {
    .hero {
      padding: 100px 0 60px;
      text-align: center;
    }
    
    .hero h1 {
      font-size: 2rem;
    }
    
    .hero p.lead {
      font-size: 1.1rem;
    }
    
    .section-title {
      font-size: 1.6rem;
    }
    
    .feature-card, .step-card {
      padding: 20px;
    }
  }

  @media (max-width: 575.98px) {
    .hero h1 {
      font-size: 1.8rem;
    }
    
    .btn {
      padding: 10px 20px;
    }
  }

  /* Simple Pricing Section */
  .pricing-card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    overflow: hidden;
  }

  .pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  }

  .pricing-card.enterprise {
    border: 2px solid var(--primary-color);
  }

  .pricing-header {
    padding: 30px;
    text-align: center;
    background-color: rgba(18, 140, 126, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }

  .pricing-header h3 {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 10px;
  }

  .price {
    margin: 20px 0;
  }

  .price .amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1;
  }

  .price .period {
    font-size: 1rem;
    color: var(--gray-color);
  }

  .comission-badge {
    display: inline-block;
    background-color: rgba(37, 211, 102, 0.1);
    color: var(--secondary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 10px;
  }

  .pricing-features {
    padding: 25px 30px;
  }

  .pricing-features ul {
    list-style: none;
    padding: 0;
  }

  .pricing-features li {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
  }

  .pricing-features i {
    margin-top: 3px;
  }

  .pricing-footer {
    padding: 20px 30px;
    text-align: center;
  }

  /* Responsive adjustments */
  @media (max-width: 767.98px) {
    .pricing-header {
      padding: 20px;
    }
    
    .price .amount {
      font-size: 2rem;
    }
    
    .pricing-features {
      padding: 20px;
    }
  }