header {
    border-bottom: 1px solid rgba(128, 128, 128, 0.329);
}

header .center {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav ul {
    display: flex;
    gap: 20px;
}

nav ul a {
    padding: 20px 8px;
    display: block;
    font-size: 14px;
    color: #222;
    position: relative;
    transition: .1s;
    --w: 0%;
    --l: 50%;
}

nav ul a:hover {
    --w: 100%;
    --l: 0%;
}

nav ul a:hover {
    color: #19b5bc;
}

nav ul a::after {
    content: '';
    position: absolute;
    width: var(--w);
    height: 3px;
    bottom: 0;
    left: var(--l);
    background-color: #19b5bc;
    transition: .1s;
}

.logo {
    width: var(--logo);
}

.searchBar {
    width: var(--searchBar);
    display: flex;
    box-shadow: 0 2px 8px #00000026;
}

.searchBar #search {
    flex: 1;
    border: 1px solid #d9d9d9;
    border-radius: 5px 0 0 5px;
    text-indent: 1em;
}

.searchBar #go {
    background-color: #19b5bc;
    transition: .2s;
    color: #fff;
    padding: 10px 15px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 0 5px 5px 0;
}

.searchBar #go:hover {
    background-color: #088f95;
}

@media screen and (max-width:769px) {
    header .center {
        flex-direction: column;
        padding: 0 0 10px;
        gap: 12px;
    }

    nav {
        width: 100%;
    }

    nav ul li {
        flex: 1;
    }

    nav ul li a {
        text-align: center;
        padding: 10px 0;
    }

    .searchBar {
        width: calc(var(--searchBar) - 10px);
        margin: 0 auto;
    }
}