components/footer.js

class CustomFooter extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        :host {
          display: block;
          font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        footer {
          background: #1a202c;
          color: #cbd5e0;
          padding: 3rem 2rem 2rem;
          margin-top: 4rem;
        }
        .footer-container {
          max-width: 1200px;
          margin: 0 auto;
          display: grid;
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
          gap: 2rem;
        }
        .footer-section h3 {
          color: white;
          font-size: 1.2rem;
          margin-bottom: 1rem;
          font-weight: 600;
        }
        .footer-section p {
          line-height: 1.6;
          font-size: 0.95rem;
        }
        .footer-links {
          list-style: none;
          padding: 0;
          margin: 0;
        }
        .footer-links li {
          margin-bottom: 0.5rem;
        }
        .footer-links a {
          color: #a0aec0;
          text-decoration: none;
          transition: color 0.3s;
        }
        .footer-links a:hover {
          color: #667eea;
        }
        .social-icons {
          display: flex;
          gap: 1rem;
          margin-top: 1rem;
        }
        .social-icons a {
          display: inline-flex;
          align-items: center;
          justify-content: center;
          width: 36px;
          height: 36px;
          background: #2d3748;
          border-radius: 50%;
          color: white;
          text-decoration: none;
          transition: background 0.3s;
        }
        .social-icons a:hover {
          background: #667eea;
        }
        .copyright {
          text-align: center;
          margin-top: 3rem;
          padding-top: 1.5rem;
          border-top: 1px solid #2d3748;
          color: #718096;
          font-size: 0.9rem;
        }
        @media (max-width: 768px) {
          .footer-container {
            grid-template-columns: 1fr;
          }
        }
      </style>
      <footer>
        <div class="footer-container">
          <div class="footer-section">
            <h3>GraphicsLab</h3>
            <p>A high‑end graphics testing platform for benchmarking, visualization, and performance analysis. Built with modern web technologies and real‑time APIs.</p>
          </div>
          <div class="footer-section">
            <h3>Quick Links</h3>
            <ul class="footer-links">
              <li><a href="index.html">Home</a></li>
              <li><a href="benchmarks.html">Benchmarks</a></li>
              <li><a href="visualizer.html">Visualizer</a></li>
              <li><a href="compare.html">Compare</a></li>
              <li><a href="about.html">About</a></li>
            </ul>
          </div>
          <div class="footer-section">
            <h3>Resources</h3>
            <ul class="footer-links">
              <li><a href="https://developer.mozilla.org/en‑US/docs/Web/API/WebGL_API" target="_blank">WebGL Docs</a></li>
              <li><a href="https://threejs.org/" target="_blank">Three.js</a></li>
              <li><a href="https://public‑apis.dev/" target="_blank">Public APIs</a></li>
              <li><a href="https://github.com/public‑apis/public‑apis" target="_blank">GitHub</a></li>
            </ul>
          </div>
          <div class="footer-section">
            <h3>Connect</h3>
            <p>Stay updated with the latest graphics benchmarks and visualizations.</p>
            <div class="social-icons">
              <a href="#" aria-label="Twitter"><svg width="18" height="18" fill="currentColor" viewBox="0 0 24 24"><path d="M23.953 4.57a10 10 0 01-2.825.775 4.958 4.958 0 002.163-2.723c-.951.555-2.005.959-3.127 1.184a4.92 4.92 0 00-8.384 4.482C7.69 8.095 4.067 6.13 1.64 3.162a4.822 4.822 0 00-.666 2.475c0 1.71.87 3.213 2.188 4.096a4.904 4.904 0 01-2.228-.616v.06a4.923 4.923 0 003.946 4.827 4.996 4.996 0 01-2.212.085 4.936 4.936 0 004.604 3.417 9.867 9.867 0 01-6.102 2.105c-.39 0-.779-.023-1.17-.067a13.995 13.995 0 007.557 2.213c9.053 0 13.998-7.496 13.998-13.985 0-.21 0-.42-.015-.63A9.935 9.935 0 0024 4.59z"/></svg></a>
              <a href="#" aria-label="GitHub"><svg width="18" height="18" fill="currentColor" viewBox="0 0 24 24"><path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/></svg></a>
              <a href="#" aria-label="LinkedIn"><svg width="18" height="18" fill="currentColor" viewBox="0 0 24 24"><path d="M20.447 20.452h-3.554v-5.569c0-1.328-.027-3.037-1.852-3.037-1.853 0-2.136 1.445-2.136 2.939v5.667H9.351V9h3.414v1.561h.046c.477-.9 1.637-1.85 3.37-1.85 3.601 0 4.267 2.37 4.267 5.455v6.286zM5.337 7.433c-1.144 0-2.063-.926-2.063-2.065 0-1.138.92-2.063 2.063-2.063 1.14 0 2.064.925 2.064 2.063 0 1.139-.925 2.065-2.064 2.065zm1.782 13.019H3.555V9h3.564v11.452zM22.225 0H1.771C.792 0 0 .774 0 1.729v20.542C0 23.227.792 24 1.771 24h20.451C23.2 24 24 23.227 24 22.271V1.729C24 .774 23.2 0 22.222 0h.003z"/></svg></a>
            </div>
          </div>
        </div>
        <div class="copyright">
          &copy; 2023 GraphicsLab. All rights reserved. | Built with modern Web APIs.
        </div>
      </footer>
    `;
  }
}
customElements.define('custom-footer', CustomFooter);