/* Animación de aparición suave desde abajo */
  @keyframes fadeInUp {
    0% {
      transform: translateY(30px);
      opacity: 0;
    }
    100% {
      transform: translateY(0);
      opacity: 1;
    }
  }

  .fade-in-up {
    animation: fadeInUp 1s ease-out both;
  }

  /* Brillo suave al pasar el mouse */
  .card-glow:hover {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3), 0 0 40px rgba(59, 130, 246, 0.2);
    transform: scale(1.02);
    transition: transform 0.4s, box-shadow 0.4s;
  }

  /* Animación para botones que flotan suavemente */
  @keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0px); }
  }

  .btn-flotante {
    animation: float 3s ease-in-out infinite;
  }

  /* Línea decorativa animada debajo del título */
  .header-animado::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    margin: 8px auto 0;
    background: linear-gradient(to right, #38bdf8, #06b6d4);
    border-radius: 2px;
    animation: expandLine 2s ease-out;
  }

  @keyframes expandLine {
    from { width: 0; opacity: 0; }
    to { width: 80px; opacity: 1; }
  }

  /* Animación de entrada suave a las tarjetas */
  [data-aos] {
    animation: fadeInUp 1s ease forwards;
  }

  /* Agregar fondo suave animado al contenedor principal */
  .main-container {
    background: linear-gradient(135deg, rgba(255,255,255,0.8), rgba(243,244,246,0.8));
    backdrop-filter: blur(10px);
    animation: fadeInUp 1s ease forwards;
  }

  /* Brillo en el logo de WhatsApp al pasar el mouse */
  footer img[src*="whatsapp"] {
    transition: transform 0.3s ease, filter 0.3s ease;
  }

  footer img[src*="whatsapp"]:hover {
    transform: scale(1.2);
    filter: brightness(1.3) drop-shadow(0 0 6px #25d366);
  }