header {
    background-color: #000;
}

.head-cen {
    width: var(--all-width);
    margin: 0 auto;
}

.head-top {
    padding: 16px 0;
    display: flex;
    align-items: center;
}

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

.searchBar {
    width: var(--searchBar);
    display: flex;
    margin-left: auto;
    border-radius: 4px;
    overflow: hidden;
}

#search {
    flex: 1;
    height: var(--button);
    font-size: 15px;
    text-indent: 1em;
}

#go {
    width: calc(var(--button) + 24px);
    height: var(--button);
    padding: 0 12px;
    background-color: rgb(47, 130, 251);
}

#go img {
    transform: scale(.8);
}

nav ul {
    display: flex;
    gap: 10px;
}

nav li {
    flex: 1;
}

nav a {
    display: block;
    color: #fff;
    text-align: center;
    padding: 8px 0;
    background-color: rgb(33, 33, 33);
    border-radius: 4px 4px 0 0;
    transition: .4s;
    font-size: 13px;
}

nav a:hover {
    background-color: #fff;
    color: #000;
}

.peBtn {
    width: var(--button);
    height: var(--button);
    display: none;
}

@media screen and (max-width:769px) {
    header {
        position: relative;
        z-index: 2;
    }

    .head-top {
        justify-content: space-around;
        padding: 8px 0;
        row-gap: 10px;
    }

    nav,
    .searchBar {
        margin: 0 auto;
        position: absolute;
        inset: 0;
        height: 100vh;
        width: 100%;
        background-color: #000;
        transition: .3s;
        transform: translateY(-100%);
        padding: 10px 5px 0;
        border-radius: 0;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul a {
        min-width: 100px;
        border-radius: 4px;
    }

    .peBtn {
        display: block;
    }

    .head-open {
        top: 100%;
        transform: translateY(0);
    }
}