body {
    margin: 0;
}

.sidebar {
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    width: 260px;
    min-height: 100vh;
    background-color: #1f2933;
}

    .sidebar .nav-link {
        color: #cbd5e1;
    }

        .sidebar .nav-link:hover,
        .sidebar .nav-link:focus {
            background-color: #334155;
            color: #fff;
        }

.submenu .nav-link {
    padding-left: 2.5rem;
    font-size: 0.95rem;
}

.submenu .submenu .nav-link {
    padding-left: 3.5rem;
}

.pagination {
    position: sticky;
    top: 0;
    background-color: #333;
    color: white;
    padding: 15px;
    font-size: 18px;
    z-index: 1000;
}

.chevron {
    transition: transform 0.2s ease;
}

a[aria-expanded="true"] .chevron {
    transform: rotate(90deg);
}