SpaceNinjaServer/static/webui/style.css

@media (min-width: 992px) {
    body.logged-in #main-view {
        display: grid;
        grid-template-columns: 1fr 8fr;
        gap: 1.5rem;
    }

    body:not(.logged-in) #sidebar {
        display: none;
    }
}

body:not(.logged-in) .navbar-toggler,
body:not(.logged-in) .nav-item.dropdown,
body:not(.logged-in) #refresh-note {
    display: none;
}