body {
      font-family: 'Inter', 'Segoe UI', Tahoma, sans-serif;
      color: #333;
    }
    .navbar {
      background: #fff;
      border-bottom: 1px solid #eaeaea;
      padding: 0.6rem 1rem;
    }
    .navbar-brand { color: #005296 !important; font-weight: 700; font-size: 2rem; }
    .nav-link { color: #555 !important; margin: 0 0.6rem; font-weight: 500; }
    .nav-link:hover { color: #005296 !important; }
    .btn-primary {
      background: #005296; border: none; border-radius: 8px; font-weight: 500;
      padding: 0.6rem 1.2rem; transition: all 0.3s ease;
    }
    .btn-primary:hover { background: #003d75; transform: scale(1.03); }
    .hero { padding: 4rem 0 2rem; }
    .hero h1 { font-size: 2.3rem; font-weight: 700; color: #005296; }
    .hero img { border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,.1); }
    section { padding: 3rem 0; }
    h2 { font-weight: 700; margin-bottom: 2rem; }
    .card {
      border: none; border-radius: 12px; box-shadow: 0 2px 10px rgba(0,0,0,.05);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .card:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,.12); }
    .whatsapp-float:hover { transform: scale(1.15); }
    footer { background: #f9f9f9; color: #555; font-size: 0.85rem; padding: 1rem 0; }
.hero-section {
    position: relative;
    height: 100vh; /* altura de la ventana */
    background-image: url('https://plus.unsplash.com/premium_photo-1683141211018-61cba789f1ab?q=80&w=870&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
  }

  .hero-section .bg-img{
    position: absolute;
    top: 0; 
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    opacity: 0.5;
  }

.hero-section .overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 82, 150, 0.6); /* azul semitransparente */
}


  .hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 20px;
  }

  .hero-content h1 {
    color: #ffffff;
    font-size: 3rem;
  }

  .hero-content p {
    color: #f1f1f1;
    font-size: 1.2rem;
  }
  @keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
  }
  .pulse {
    animation: pulse 2.6s infinite;
    display: inline-block;
  }
  .delay-1 { animation-delay: 0.4s; }
  .delay-2 { animation-delay: 0.8s; }

.social-column {
    position: fixed;
    top: 40%;
    right: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 1100;
  }
  .social-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.25);
    cursor: pointer;
    overflow: visible;
  }
  .social-icon:hover {
    transform: scale(1.2);
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
  }
  .social-icon.whatsapp { background-color: #25D366; }
  .social-icon.facebook { background-color: #1877f2; }
  .social-icon.instagram { 
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, 
      #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
  }

  /* Etiqueta del WhatsApp */
  .whatsapp-label {
    position: absolute;
    right: 70px; /* separado del ícono */
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    background-color: #25D366;
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 1;
    transform: translateX(10px);
    pointer-events: none;
    transition: all 0.4s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }

  .whatsapp-contacto { color: #25D366; }
  .facebook-contacto { color: #1877f2; }
  .instagram-contacto { 
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, 
      #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }