document.addEventListener('DOMContentLoaded', function () {
    const sidebar = document.getElementById('sidebar');
    const mainContent = document.getElementById('main-content');
    const sidebarToggler = document.getElementById('sidebar-toggler');

    if (sidebarToggler) {
        sidebarToggler.addEventListener('click', function () {
            sidebar.classList.toggle('sidebar-collapsed');
            mainContent.classList.toggle('main-content-collapsed');
        });
    }
});