html, body {
      height: 100%;
      margin: 0;
    }

    body {
      background: url('../img/fondo.jpg') no-repeat center center fixed;
      background-size: cover;
      font-family: 'Poppins', sans-serif;
      display: flex;
      flex-direction: column;
    }

    main {
      flex: 1;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 2rem 1rem;
    }

    .login-box {
      width: 100%;
      max-width: 420px;
      padding: 2rem;
      background: #ffffffee;
      border-radius: 1rem;
      box-shadow: 0 0 25px rgba(0, 0, 0, 0.2);
      text-align: center;
    }

    .login-box img {
      max-height: 160px;
      width: auto;
      margin-bottom: 1.5rem;
    }

    .form-floating > input {
      padding-right: 3rem;
    }

    .password-toggle {
      position: absolute;
      right: 1rem;
      top: 50%;
      transform: translateY(-50%);
      border: none;
      background: none;
      color: #6c757d;
      cursor: pointer;
      z-index: 10;
    }

    .modal-custom {
      display: none;
      position: fixed;
      z-index: 1050;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      background-color: rgb(0 0 0 / 0.5);
    }

    .modal-content-custom {
      background-color: #fff;
      margin: 15% auto;
      padding: 1.5rem;
      border-radius: 0.375rem;
      max-width: 400px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
      text-align: center;
    }

    .footer {
      text-align: center;
      padding: 1rem;
      font-size: 0.9rem;
      color: #6c757d;
      background: #f1f1f1;
    }

    .footer a {
      color: #0d6efd;
      text-decoration: none;
    }

    .footer i {
      margin-right: 0.3rem;
      color: #0d6efd;
    }
    .modal-custom.show {
  display: block !important;
}