class CustomHeader extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        :host {
          display: block;
        }
        
        header {
          background-color: #1f2937;
          box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
          position: sticky;
          top: 0;
          z-index: 100;
        }
        
        .container {
          max-width: 1200px;
          margin: 0 auto;
          padding: 0 1rem;
        }
        
        nav {
          display: flex;
          justify-content: space-between;
          align-items: center;
          padding: 1rem 0;
        }
        
        .logo {
          display: flex;
          align-items: center;
          font-weight: 700;
          font-size: 1.5rem;
          color: white;
          text-decoration: none;
        }
        
        .logo-icon {
          color: #10b981;
          margin-right: 0.5rem;
        }
        
        .nav-links {
          display: flex;
          list-style: none;
        }
        
        .nav-links li {
          margin-left: 2rem;
        }
        
        .nav-links a {
          color: #d1d5db;
          text-decoration: none;
          font-weight: 500;
          transition: color 0.3s;
        }
        
        .nav-links a:hover {
          color: #10b981;
        }
        
        .nav-buttons {
          display: flex;
          align-items: center;
        }
        
        .btn {
          padding: 0.5rem 1rem;
          border-radius: 0.375rem;
          font-weight: 500;
          transition: all 0.3s;
          text-decoration: none;
          display: inline-block;
        }
        
        .btn-outline {
          border: 1px solid #10b981;
          color: #10b981;
          margin-right: 1rem;
        }
        
        .btn-outline:hover {
          background-color: #10b981;
          color: white;
        }
        
        .btn-primary {
          background-color: #10b981;
          color: white;
        }
        
        .btn-primary:hover {
          background-color: #059669;
        }
        
        .mobile-menu-button {
          display: none;
          background: none;
          border: none;
          color: white;
          font-size: 1.5rem;
          cursor: pointer;
        }
        
        @media (max-width: 768px) {
          .nav-links {
            display: none;
          }
          
          .nav-buttons {
            display: none;
          }
          
          .mobile-menu-button {
            display: block;
          }
        }
      </style>
      
      <header>
        <div class="container">
          <nav>
            <a href="/" class="logo">
              <i data-feather="aperture" class="logo-icon"></i>
              <span>FrameForge</span>
            </a>
            <ul class="nav-links">
              <li><a href="/">Home</a></li>
              <li><a href="/models">Models</a></li>
              <li><a href="/#features">Features</a></li>
              <li><a href="/upload">Upload</a></li>
              <li><a href="/documentation">Documentation</a></li>
            </ul>
<div class="nav-buttons">
              <a href="/signin" class="btn btn-outline">Sign In</a>
              <a href="/signup" class="btn btn-primary">Get Started</a>
            </div>
<button class="mobile-menu-button">
              <i data-feather="menu"></i>
            </button>
          </nav>
        </div>
      </header>
    `;
    
    // Initialize Feather Icons
    const featherScript = document.createElement('script');
    featherScript.src = 'https://unpkg.com/feather-icons';
    featherScript.onload = () => {
      const featherMinScript = document.createElement('script');
      featherMinScript.src = 'https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js';
      featherMinScript.onload = () => {
        feather.replace();
      };
      this.shadowRoot.appendChild(featherMinScript);
    };
    this.shadowRoot.appendChild(featherScript);
  }
}

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