.mobile-menu li {
    position: relative;
    cursor: pointer;
}
.mobile-menu li ul {
    transition: all 0.2s;
}
.mobile-menu li.open > a {
    background: #0078d7;
    color: #fff;
}
.mobile-menu-close {
    position: fixed;
    top: max(15px, env(safe-area-inset-top));
    right: max(20px, env(safe-area-inset-right));
    font-size: 22px;
    font-weight: 300;
    color: #fff;
    cursor: pointer;
    z-index: 10000;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    background: #505050;
    border: none;
    border-radius: 0;
    transition: background 0.2s ease, color 0.2s ease;
}
.mobile-menu-close:hover {
    background: #606060;
    color: #fff;
}