components/footer.js

class CustomFooter extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        footer {
          background: rgba(255, 255, 255, 0.8);
          backdrop-filter: blur(10px);
          color: #4a5568;
          padding: 3rem 2rem;
          text-align: center;
          margin-top: 4rem;
          border-top: 1px solid rgba(0, 0, 0, 0.1);
        }
        
        .footer-content {
          max-width: 1200px;
          margin: 0 auto;
          display: grid;
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
          gap: 2rem;
          text-align: left;
        }
        
        .footer-column h3 {
          font-size: 1.2rem;
          font-weight: 700;
          margin-bottom: 1.5rem;
          background: linear-gradient(to right, #9a6bff, #ff6b9a);
          -webkit-background-clip: text;
          background-clip: text;
          color: transparent;
        }
        
        .footer-links {
          list-style: none;
          padding: 0;
          margin: 0;
        }
        
        .footer-links li {
          margin-bottom: 0.75rem;
        }
        
        .footer-links a {
          color: #4a5568;
          text-decoration: none;
          transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
          color: #9a6bff;
        }
        
        .social-links {
          display: flex;
          gap: 1rem;
          justify-content: center;
          margin-top: 2rem;
        }
        
        .social-links a {
          display: inline-flex;
          align-items: center;
          justify-content: center;
          width: 40px;
          height: 40px;
          border-radius: 50%;
          background: linear-gradient(to right, #9a6bff, #ff6b9a);
          color: white;
          transition: transform 0.3s ease;
        }
        
        .social-links a:hover {
          transform: translateY(-5px);
        }
        
        .copyright {
          margin-top: 3rem;
          padding-top: 1.5rem;
          border-top: 1px solid rgba(0, 0, 0, 0.1);
          font-size: 0.9rem;
        }
        
        @media (max-width: 768px) {
          .footer-content {
            grid-template-columns: 1fr;
            text-align: center;
          }
          
          .social-links {
            justify-content: center;
          }
        }
      </style>
      <footer>
        <div class="footer-content">
          <div class="footer-column">
            <h3>GXS Blue Transformation - Chuyển Đổi Xanh Dương</h3>
            <p>Committed to environmental excellence since 2023.</p>
</div>
          
          <div class="footer-column">
            <h3>Quick Links</h3>
            <ul class="footer-links">
              <li><a href="/">Home</a></li>
              <li><a href="/about.html">About</a></li>
              <li><a href="/solutions.html">Our Solutions</a></li>
              <li><a href="/projects.html">Global Projects</a></li>
<li><a href="/contact.html">Contact Us</a></li>
            </ul>
          </div>
          
          <div class="footer-column">
            <h3>Connect With Us</h3>
            <div class="social-links">
              <a href="#"><i data-feather="twitter"></i></a>
              <a href="#"><i data-feather="instagram"></i></a>
              <a href="#"><i data-feather="facebook"></i></a>
              <a href="#"><i data-feather="github"></i></a>
            </div>
          </div>
        </div>
        
        <div class="copyright">
          &copy; 2026 GXS Blue Transformation. All rights reserved. Made with <i data-feather="heart" class="inline" style="width: 14px; height: 14px; color: #ff6b9a;"></i> and magic.
        </div>
      </footer>
    `;
  }
}
customElements.define('custom-footer', CustomFooter);