.hidden { display: none !important; }
#view-admin, #view-student { display: flex; min-height: 100vh; flex-direction: column; }

@media (min-width: 768px) {
    #view-admin, #view-student { flex-direction: row; }
    .sidebar-collapsed { width: 0 !important; min-width: 0 !important; overflow: hidden !important; }
}