.nav-item {
    position: relative;
    text-decoration: none;
}

.nav-item::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
}

.nav-item:hover::after {
    width: 100%;
    left: 0;
}

.nav-item:hover i{
    rotate: 90deg;
} 

.icon-hover:hover {
    transition: var(--transition);
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    -o-transition: var(--transition);
}