/* Botones activos */
      button:active {
        transform: translateY(0px);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
      }

        /* Estilos del modal */
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
        }

        .modal-content {
            margin: auto;
            display: block;
            width: 80%;
            max-width: 700px;
        }

        /* Cerrar el modal */
        .close {
            position: absolute;
            top: 20px;
            right: 35px;
            color: white;
            font-size: 40px;
            font-weight: bold;
            transition: 0.3s;
        }

        .close:hover,
        .close:focus {
            color: #bbb;
            text-decoration: none;
            cursor: pointer;
        }
        /* Estilos responsivos */
        @media only screen and (max-width: 700px) {
            .modal-content {
                width: 100%;
            }
        }