class CustomHeader extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        :host {
          display: block;
        }
        
        * {
          margin: 0;
          padding: 0;
          box-sizing: border-box;
        }
        
        header {
          background-color: rgba(17, 24, 39, 0.9); /* gray-900 with opacity */
          backdrop-filter: blur(10px);
          position: fixed;
          width: 100%;
          z-index: 1000;
          border-bottom: 1px solid rgba(55, 65, 81, 0.5); /* gray-700 */
        }
        
        .container {
          max-width: 1200px;
          margin: 0 auto;
          padding: 0 1rem;
        }
        
        nav {
          display: flex;
          justify-content: space-between;
          align-items: center;
          padding: 1.5rem 0;
        }
        
        .logo {
          display: flex;
          align-items: center;
          text-decoration: none;
        }
        
        .logo-icon {
          background: linear-gradient(135deg, #eab308 0%, #ca8a04 100%);
          width: 40px;
          height: 40px;
          border-radius: 10px;
          display: flex;
          align-items: center;
          justify-content: center;
          margin-right: 12px;
        }
        
        .logo-text {
          font-family: 'Space Grotesk', sans-serif;
          font-weight: 700;
          font-size: 1.5rem;
          background: linear-gradient(to right, #eab308, #facc15);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
        }
        
        .nav-links {
          display: flex;
          list-style: none;
        }
        
        .nav-links li {
          margin-left: 2rem;
        }
        
        .nav-links a {
          color: #d1d5db; /* gray-300 */
          text-decoration: none;
          font-weight: 500;
          font-size: 1rem;
          transition: color 0.3s ease;
          position: relative;
        }
        
        .nav-links a:hover {
          color: #eab308; /* yellow-500 */
        }
        
        .nav-links a::after {
          content: '';
          position: absolute;
          bottom: -5px;
          left: 0;
          width: 0;
          height: 2px;
          background: #eab308;
          transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
          width: 100%;
        }
        
        .cta-button {
          background: linear-gradient(135deg, #eab308 0%, #ca8a04 100%);
          color: #000;
          border: none;
          padding: 0.75rem 1.5rem;
          border-radius: 0.5rem;
          font-weight: 600;
          font-size: 1rem;
          cursor: pointer;
          transition: all 0.3s ease;
          text-decoration: none;
          display: inline-block;
        }
        
        .cta-button:hover {
          transform: translateY(-2px);
          box-shadow: 0 10px 25px -5px rgba(234, 179, 8, 0.25);
        }
        
        .mobile-menu-button {
          display: none;
          background: none;
          border: none;
          color: #d1d5db;
          cursor: pointer;
        }
        
        @media (max-width: 768px) {
          .nav-links {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(17, 24, 39, 0.95);
            flex-direction: column;
            padding: 1rem 0;
            border-top: 1px solid rgba(55, 65, 81, 0.5);
          }
          
          .nav-links.active {
            display: flex;
          }
          
          .nav-links li {
            margin: 0.5rem 0;
            text-align: center;
          }
          
          .mobile-menu-button {
            display: block;
          }
          
          .cta-button {
            display: none;
          }
        }
      </style>
      
      <header>
        <div class="container">
          <nav>
            <a href="/" class="logo">
              <div class="logo-icon">
                <i data-feather="cpu" class="text-black w-5 h-5"></i>
              </div>
              <div class="logo-text">Custom AI NW</div>
            </a>
            
            <button class="mobile-menu-button" id="mobileMenuButton">
              <i data-feather="menu" class="w-6 h-6"></i>
            </button>
            
            <ul class="nav-links" id="navLinks">
              <li><a href="#services">Services</a></li>
              <li><a href="#">Case Studies</a></li>
              <li><a href="#">Pricing</a></li>
              <li><a href="#contact">Contact</a></li>
              <li><a href="#" class="cta-button">Free Consultation</a></li>
            </ul>
</nav>
        </div>
      </header>
    `;
    
    // Mobile menu toggle
    this.shadowRoot.addEventListener('click', (e) => {
      if (e.target.closest('#mobileMenuButton')) {
        const navLinks = this.shadowRoot.getElementById('navLinks');
        navLinks.classList.toggle('active');
        
        // Update icon
        const menuIcon = this.shadowRoot.querySelector('[data-feather="menu"]');
        if (navLinks.classList.contains('active')) {
          menuIcon.setAttribute('data-feather', 'x');
        } else {
          menuIcon.setAttribute('data-feather', 'menu');
        }
        feather.replace();
      }
    });
  }
}

customElements.define('custom-header', CustomHeader);