body, html {
      height: 100%;
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

  .hero {
  position: relative;
  background: url("fondo.png") no-repeat center center/cover;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}

/* ✅ Cambiar fondo en pantallas grandes (ej: PC) */
@media (min-width: 992px) {
  .hero {
    background: url("fondopc.jpg") no-repeat center center/cover;
  }
}

    .hero::before {
      content: "";
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.6);
      z-index: 1;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      animation: fadeInUp 2s ease;
    }

    .hero h1 {
      font-size: 3rem;
      font-weight: bold;
      animation: fadeInDown 2s ease;
      margin: 12px;
    }

    .hero p {
      font-size: 1.2rem;
      margin-bottom: 20px;
      animation: fadeIn 3s ease;
    }

    .btn-cta {
      font-size: 1.2rem;
      padding: 12px 30px;
      border-radius: 30px;
      transition: transform 0.3s ease, background 0.3s ease;
    }

    .btn-cta:hover {
      transform: scale(1.1);
      background: #198754;
      color: #fff;
    }

    /* Animaciones */
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(50px); }
      to { opacity: 1; transform: translateY(0); }
    }

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

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

    /* Sección destacada */
    .features {
      padding: 60px 20px;
      background: #f8f9fa;
    }

    .feature-card {
      padding: 30px;
      border-radius: 15px;
      background: white;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      transition: transform 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-10px);
    }