components/footer.js

class CustomFooter extends HTMLElement {
    connectedCallback() {
        this.attachShadow({ mode: 'open' });
        this.shadowRoot.innerHTML = `
            <style>
                .footer-link {
                    transition: color 0.2s ease;
                }
                .footer-link:hover {
                    color: #4f46e5;
                }
            </style>
            <footer class="bg-gray-800 text-white py-12">
                <div class="container mx-auto px-6">
                    <div class="grid grid-cols-1 md:grid-cols-4 gap-8">
                        <div>
                            <h3 class="text-xl font-bold mb-4">Biogram</h3>
                            <p class="text-gray-400">Free access to premium biomedical simulations from top institutions.</p>
</div>
                        <div>
                            <h4 class="font-semibold mb-4">Simulations</h4>
                            <ul class="space-y-2">
                                <li><a href="https://www.biointeractive.org" target="_blank" class="footer-link text-gray-400">HHMI BioInteractive</a></li>
                                <li><a href="https://learn.genetics.utah.edu" target="_blank" class="footer-link text-gray-400">Utah Genetics</a></li>
                                <li><a href="https://www.labxchange.org" target="_blank" class="footer-link text-gray-400">LabXchange</a></li>
</ul>
                        </div>
                        <div>
                            <h4 class="font-semibold mb-4">Resources</h4>
                            <ul class="space-y-2">
                                <li><a href="tutorials.html" class="footer-link text-gray-400">Tutorials</a></li>
                                <li><a href="glossary.html" class="footer-link text-gray-400">Glossary</a></li>
                                <li><a href="research.html" class="footer-link text-gray-400">Research Papers</a></li>
                            </ul>
                        </div>
                        <div>
                            <h4 class="font-semibold mb-4">Connect</h4>
                            <div class="flex space-x-4">
                                <a href="#" class="footer-link text-gray-400"><i data-feather="twitter"></i></a>
                                <a href="#" class="footer-link text-gray-400"><i data-feather="facebook"></i></a>
                                <a href="#" class="footer-link text-gray-400"><i data-feather="linkedin"></i></a>
                                <a href="#" class="footer-link text-gray-400"><i data-feather="youtube"></i></a>
                            </div>
                        </div>
                    </div>
                    <div class="border-t border-gray-700 mt-8 pt-8 text-center text-gray-400">
                        <p>© 2023 Biogram - Free educational resource. Content from partner institutions.</p>
</div>
                </div>
            </footer>
        `;
    }
}
customElements.define('custom-footer', CustomFooter);