document.querySelectorAll('[data-lightbox]').forEach((link) => {
    link.addEventListener('click', (event) => {
        event.preventDefault();
        window.open(link.href, '_blank', 'noopener');
    });
});

const pageContent = document.querySelector('[data-page-content]');
const tocList = document.querySelector('[data-toc]');

if (pageContent && tocList) {
    const headings = pageContent.querySelectorAll('h2, h3');

    headings.forEach((heading, index) => {
        if (!heading.id) {
            heading.id = `section-${index + 1}`;
        }

        const link = document.createElement('a');
        link.href = `#${heading.id}`;
        link.textContent = heading.textContent || `Abschnitt ${index + 1}`;
        tocList.appendChild(link);
    });

    if (!headings.length) {
        tocList.parentElement?.remove();
    }
}