bbPress CSS code for the header area

.bbp-view.bbpress.archive #main-header {
    background-color: transparent;
    backdrop-filter: blur(10px);
    position: fixed;
    left: 0;
    width: 100%;
    z-index: 1;
}

.bbp-view.bbpress.archive #et_top_search,
.bbp-view.bbpress.archive .et_search_outer,
.bbp-view.bbpress.archive .select_page {
    display: none;
}

.bbp-view.bbpress.archive #main-header .et_menu_container {
    display: flex;
    align-items: stretch;
    width: 95%;
    max-width: 95%;
    padding-top: 5px;
}

@media (min-width: 981px) {
    .bbp-view.bbpress.archive .logo_container {
        flex: 0 1 auto;
        display: flex;
        align-items: center;
    }

    .bbp-view.bbpress.archive .logo_container img {
        width: 120px
    }

    .bbp-view.bbpress.archive #et-top-navigation {
        flex: 1 1 auto;
        display: flex;
        justify-content: flex-start;
        align-items: stretch;
        flex-wrap: wrap;
        opacity: 1;
        padding-left: 0 !important;
    }

    .bbp-view.bbpress.archive #top-menu {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-start;
        align-items: stretch;

    }

    .bbp-view.bbpress.archive #top-menu li {
        position: relative;
        display: flex;
        align-items: stretch;
        margin: 0;
        padding-left: 11px;
        padding-right: 11px;
    }

    .bbp-view.bbpress.archive #top-menu li > a {
        display: flex;
        align-items: center;
        padding: 31px 0;
        white-space: nowrap;
        color: #666666;
    }

    .bbp-view.bbpress.archive #top-menu li > ul {
        position: absolute;
        padding: 20px 0;
        z-index: 9999;
        width: 240px;
        background: #fff;
        visibility: hidden;
        opacity: 0;
        border-top: 3px solid #2ea3f2;
        box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
        -moz-box-shadow: 0 2px 5px rgba(0, 0, 0, .1);
        -webkit-box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
        -webkit-transform: translateZ(0);
        text-align: left;
        top: calc(100% - 1px);
        left: 0;
    }

    .bbp-view.bbpress.archive #top-menu li:hover > ul {
        transition: all .2s ease-in-out;
        opacity: 1;
        visibility: visible;
    }

    .bbp-view.bbpress.archive #top-menu li > ul > li {
        position: relative;
        line-height: 2em;
        padding: 0 20px;
        margin: 0;
        display: inline-block;
        font-size: 14px;
        width: 100%;
    }

    .bbp-view.bbpress.archive #top-menu li > ul > li a {
        transition: color 300ms ease 0ms;
        font-weight: 500;
        font-size: 13px;
        letter-spacing: 0.2px;
        padding: 6px 20px;
        width: 200px;
    }

    .bbp-view.bbpress.archive .youzify.youzify-page.youzify-forum.youzify-wild-content {
        padding-top: 102px;
    }

    .bbp-view.bbpress.archive #et_mobile_nav_menu {
        display: none;
    }
}



@media (max-width: 980px) {
    .bbp-view.bbpress.archive #page-container {
        padding-top: 0;
    }

    .bbp-view.bbpress.archive .youzify.youzify-page.youzify-forum.youzify-wild-content {
        padding-top: 67px;
    }

    .bbp-view.bbpress.archive .logo_container {
        width: 15%;
        display: flex;
        flex: 0 1 auto;
        align-items: center;
    }

    .bbp-view.bbpress.archive .logo_container img {
        height: auto;
        max-height: none;
        width: 120px;
        display: block;
    }

    .bbp-view.bbpress.archive #main-header .et_menu_container {
        align-items: center;
    }

    .bbp-view.bbpress.archive #et-top-navigation {
        display: flex;
        justify-content: flex-end;
        flex: 1 1 auto;
        align-items: stretch;
        flex-wrap: wrap;
        oapcity: 1;
        padding-left: 0 !important;
    }

    .bbp-view.bbpress.archive #et-top-navigation nav#top-menu-nav {
        display: none;
    }

    .bbp-view.bbpress.archive #et_mobile_nav_menu {
        float: none;
        margin: 0 6px;
        display: flex;
        align-items: center;
    }

    .bbp-view.bbpress.archive .mobile_menu_bar {
        position: relative;
        display: block;
        line-height: 0;
    }

    .bbp-view.bbpress.archive .mobile_menu_bar::before {
        content: "☰";
        font-size: 32px;
        position: relative;
        left: 0;
        top: 0;
        cursor: pointer;
        top: 2px;
        color: #E09900;
    }

    .bbp-view.bbpress.archive .et_mobile_menu {
        background-color: #ffffff;
        top: 100%;
        padding: 5%;
        position: absolute;
        left: 0;
        padding: 5%;
        background: #fff;
        width: 100%;
        visibility: visible;
        opacity: 1;
        display: none;
        z-index: 9999;
        border-top: 3px solid #2ea3f2;
        box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
        -moz-box-shadow: 0 2px 5px rgba(0, 0, 0, .1);
        -webkit-box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
    }

    .bbp-view.bbpress.archive .et_mobile_menu li a {
        border-bottom: 1px solid rgba(0, 0, 0, .03);
        color: #666;
        padding: 10px 5%;
        display: block;
        font-weight: 500;
        letter-spacing: 0.2px;
        transition: color 300ms ease 0ms;
        font-size: 16px;
        line-height: 26px;
    }

    .bbp-view.bbpress.archive .et_pb_menu .et_mobile_menu li ul {
        visibility: visible;
        display: block;
        padding-left: 10px;
    }

    .bbp-view.bbpress.archive .et_mobile_menu li li {
        padding-left: 5%;
    }

    .et_mobile_menu .menu-item-has-children > a {
        font-weight: 700;
        background-color: rgba(0, 0, 0, .03);
    }
}