class CustomFooter extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        footer {
          background: linear-gradient(180deg, rgba(10, 10, 15, 0.9) 0%, #0a0a0f 100%);
          color: #cbd5e0;
          padding: 4rem 2rem 2rem;
          border-top: 1px solid rgba(179, 102, 255, 0.1);
        }
        
        .footer-content {
          max-width: 1200px;
          margin: 0 auto;
          display: grid;
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
          gap: 2rem;
        }
        
        .footer-column h3 {
          color: white;
          margin-bottom: 1.5rem;
          font-size: 1.25rem;
          position: relative;
          padding-bottom: 0.5rem;
        }
        
        .footer-column h3::after {
          content: '';
          position: absolute;
          bottom: 0;
          left: 0;
          width: 50px;
          height: 2px;
          background: linear-gradient(90deg, #b366ff, #6a00b8);
        }
        
        .footer-column ul {
          list-style: none;
          padding: 0;
        }
        
        .footer-column ul li {
          margin-bottom: 0.75rem;
        }
        
        .footer-column ul li a {
          color: #94a3b8;
          text-decoration: none;
          transition: color 0.3s ease;
          display: flex;
          align-items: center;
          gap: 0.5rem;
        }
        
        .footer-column ul li a:hover {
          color: #b366ff;
        }
        
        .social-links {
          display: flex;
          gap: 1rem;
          margin-top: 1rem;
        }
        
        .social-links a {
          display: flex;
          align-items: center;
          justify-content: center;
          width: 40px;
          height: 40px;
          border-radius: 50%;
          background: rgba(179, 102, 255, 0.1);
          color: #b366ff;
          transition: all 0.3s ease;
        }
        
        .social-links a:hover {
          background: #b366ff;
          color: white;
          transform: translateY(-3px);
        }
        
        .copyright {
          max-width: 1200px;
          margin: 3rem auto 0;
          padding-top: 2rem;
          border-top: 1px solid rgba(255, 255, 255, 0.05);
          text-align: center;
          color: #64748b;
          font-size: 0.9rem;
        }
        
        @media (max-width: 768px) {
          footer {
            padding: 3rem 1rem 1rem;
          }
        }
      </style>
      <footer>
        <div class="footer-content">
          <div class="footer-column">
            <h3>Neural Glow</h3>
            <p>Immersive 3D neural network visualization that transforms data into a luminous digital universe.</p>
            <div class="social-links">
              <a href="#"><i data-feather="twitter"></i></a>
              <a href="#"><i data-feather="github"></i></a>
              <a href="#"><i data-feather="linkedin"></i></a>
              <a href="#"><i data-feather="instagram"></i></a>
            </div>
          </div>
          
          <div class="footer-column">
            <h3>Explore</h3>
            <ul>
              <li><a href="/"><i data-feather="home"></i> Home</a></li>
              <li><a href="#features"><i data-feather="layers"></i> Features</a></li>
              <li><a href="#explore"><i data-feather="activity"></i> Interactive Demo</a></li>
              <li><a href="#"><i data-feather="book"></i> Documentation</a></li>
            </ul>
          </div>
          
          <div class="footer-column">
            <h3>Resources</h3>
            <ul>
              <li><a href="#"><i data-feather="download"></i> Download</a></li>
              <li><a href="#"><i data-feather="help-circle"></i> Support</a></li>
              <li><a href="#"><i data-feather="file-text"></i> API Docs</a></li>
              <li><a href="#"><i data-feather="users"></i> Community</a></li>
            </ul>
          </div>
          
          <div class="footer-column">
            <h3>Company</h3>
            <ul>
              <li><a href="#"><i data-feather="info"></i> About Us</a></li>
              <li><a href="#"><i data-feather="briefcase"></i> Careers</a></li>
              <li><a href="#"><i data-feather="mail"></i> Contact</a></li>
              <li><a href="#"><i data-feather="shield"></i> Privacy Policy</a></li>
            </ul>
          </div>
        </div>
        
        <div class="copyright">
          <p>&copy; 2023 Neural Glow. All rights reserved. Transforming data into digital art.</p>
        </div>
      </footer>
    `;
    
    // Initialize feather icons after a short delay to ensure DOM is ready
    setTimeout(() => {
      feather.replace();
    }, 100);
  }
}
customElements.define('custom-footer', CustomFooter);