.nav-link.active {
    color: #0d6efd !important;
    background-color: #e7f1ff;
    font-weight: 600;
    border-radius: 0.375rem;
    box-shadow: inset 3px 0 0 #0d6efd;
}

#sidebar {
    width: 250px;
    transition: width 0.3s;
}

#sidebar.collapsed {
    width: 90px !important;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden;
}

#mainContent {
    margin-left: 250px;
    transition: margin-left 0.3s;
}

#mainContent.expanded {
    margin-left: 90px !important;
    width: calc(100% - 90px);
}