.header__nav {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex
}

@media (max-width: 1023px) {
    .header__nav {
        display: none
    }
}

.header__nav a {
    color: var(--black);
    margin-left: 30px;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    -webkit-transition: .5s;
    -o-transition: .5s;
    transition: .5s;
    font-size: 14px
}

@media (max-width: 1680px) {
    .header__nav a {
        margin-left: 20px;
        font-size: 12px
    }
}

.header__nav a.active, .header__nav a:hover {
    border-color: var(--black)
}