.mobile-menu {
    position: fixed;
    display: block;
    background: rgba(0, 0, 0, .75);
    width: 50%;
    height: 100%;
    backdrop-filter: blur(10px);
    padding: 100px 20px 50px 20px;
    transform: translateX(100%);
    transition: all .5s linear;
    top: 0;
    opacity: 0;
    color: #fff;
    box-sizing: border-box;
    right: 0;
    max-width: 420px;
    z-index: 101;
}

.mobile-menu.active {
    opacity: 1;
    transform: translateX(0);
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu ul li a {
    padding-bottom: 7px;
    position: relative;
    font-size: 20px;
    text-decoration: none;
}

.mobile-menu ul li:not(:last-child) {
    margin-bottom: 20px;
}



.mobile-menu ul li a:hover:after {
    width: 100%;
}

@media (min-width: 481px) {
    .mobile-menu ul li a:after {
        content: '';
        width: 0;
        height: 1px;
        background: #cacaac;
        display: block;
        position: absolute;
        bottom: 0;
        left: 0;
        transition: all .5s linear;
    }
}

@media (max-width: 480px) {
    .mobile-menu {
        width: 100%;
        max-width: 100%;
    }
}