body {
    margin: 0;
    display: flex;
    height: 100vh;
    overflow: hidden;
}

#sidebar {
    background-color: #212529;
    overflow-x: hidden;
    transition: width 0.3s;
}

.sidebar-expanded {
    width: 240px;
    min-width: 240px;
}

.sidebar-collapsed {
    width: 70px;
    min-width: 70px;
}

.sidebar-collapsed .menu-text {
    display: none !important;
}

.nav-pills li a:hover {
    background-color: #3a86ff;
}

#mainContent {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}