.payment-img:hover {
    opacity: 0.7;
}
.payment-img.active {
    border: 2px solid #049C04;
    border-radius: 5px;
}
.btn-success:hover {
    background-color: #FFFFFF;
    color: #000000;
    border-color: #049C04;
}

/* Media query para móviles */
@media (max-width: 768px) {
    .payment-img {
        max-width: 100% !important;
        height: auto;
    }
    .d-flex {
        flex-direction: column;
        align-items: center;
    }
    .col-6, .col-md-3 {
        width: 100% !important;
        max-width: 100% !important;
    }
    .p-2 {
        padding: 0.5rem !important;
    }
}