// ----- Mobile Navigation -----
(function () {
    const toggle = document.querySelector(".nav-toggle");
    const nav = document.getElementById("main-nav");
    if (!toggle || !nav) return;

    toggle.addEventListener("click", function () {
        const open = nav.classList.toggle("open");
        toggle.setAttribute("aria-expanded", String(open));
        toggle.setAttribute("aria-label", open ? "Menü schließen" : "Menü öffnen");
    });

    // Menü nach Klick auf einen Link automatisch schließen
    nav.querySelectorAll("a").forEach(function (link) {
        link.addEventListener("click", function () {
            nav.classList.remove("open");
            toggle.setAttribute("aria-expanded", "false");
        });
    });
})();

// ----- Scroll-Reveal -----
(function () {
    const elements = document.querySelectorAll(".reveal");
    if (!elements.length) return;

    const reduceMotion = window.matchMedia("(prefers-reduced-motion: reduce)").matches;

    if (reduceMotion || !("IntersectionObserver" in window)) {
        elements.forEach(function (el) {
            el.classList.add("visible");
        });
        return;
    }

    const observer = new IntersectionObserver(
        function (entries) {
            entries.forEach(function (entry) {
                if (entry.isIntersecting) {
                    entry.target.classList.add("visible");
                    observer.unobserve(entry.target);
                }
            });
        },
        { threshold: 0.12, rootMargin: "0px 0px -40px 0px" }
    );

    elements.forEach(function (el) {
        observer.observe(el);
    });
})();