.container-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "logo logo" 
                         "top below" 
                         "nav nav";
}
.container-header .container-topbar {
    padding: .1em;
    grid-area: top;
}
.container-header .container-below-top {
    grid-area: below;
    justify-content: flex-end;
}
.container-header .grid-child:has(.navbar-brand) {
    grid-area: logo;
}
.container-header .container-nav {
    grid-area: nav;
}
@media (width >= 991.98px) {
    .container-header {
        grid-template-columns: 
            [full-start] minmax(0,1fr) 
            [main-start] repeat(4,minmax(0,19.875rem))
            [main-end] minmax(0,1fr)[full-end];
        grid-template-areas: ". logo top below below .";
        gap: 0 1rem;
    }
    .container-header:has(.container-below-top, .container-topbar) {
        grid-template-areas: ". logo nav nav nav ." 
                             ". top top below below .";
    }
/*
    .container-header:has(.container-below-top, .container-topbar) {
        grid-template-areas: ". top top nav nav nav ." 
                             ". logo logo nav nav nav .";
    }
}    .container-header:has(.container-below-top, .container-topbar) {
        grid-template-areas: ". top top below below ." 
                             ". logo nav nav nav .";
    }

*/