File: frontend/html/src/js/main.js

document.querySelector(".sidebar-toggler").addEventListener("click", () => {
    document.querySelector(".sidebar").classList.toggle("collapsed");
});

document.querySelectorAll(".submenu-toggle").forEach((toggle) => {
    toggle.addEventListener("click", (event) => {
        event.preventDefault();

        const parentItem = toggle.closest(".has-children");
        const willOpen = !parentItem.classList.contains("is-open");

        document.querySelectorAll(".has-children.is-open").forEach((item) => {
            if (item !== parentItem) {
                item.classList.remove("is-open");

                const itemToggle = item.querySelector(".submenu-toggle");
                if (itemToggle) {
                    itemToggle.setAttribute("aria-expanded", "false");
                }
            }
        });

        const isOpen = parentItem.classList.toggle("is-open");

        toggle.setAttribute("aria-expanded", String(willOpen && isOpen));
    });
});