.register-icon-one li a .fab {
    background-color: #fff;
    color: #102135;
    border: 1px solid transparent; /* optional border */
    transition: all 0.3s ease; /* smooth hover effect */
}

.register-icon-one li a:hover .fab {
    background-color: rgb(245, 160, 28);
    color: rgb(255, 255, 255);
    border-color: rgb(245, 160, 28);
}