class CustomHeader extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        header {
          background: rgba(26, 26, 26, 0.95);
          backdrop-filter: blur(10px);
          border-bottom: 1px solid rgba(184, 134, 11, 0.3);
          position: fixed;
          top: 0;
          width: 100%;
          z-index: 1000;
          padding: 1rem 0;
        }
        
        .header-container {
          max-width: 1200px;
          margin: 0 auto;
          display: flex;
          align-items: center;
          justify-content: space-between;
          padding: 0 2rem;
        }
        
        .logo-text {
          font-family: 'Playfair Display', serif;
          font-size: 1.8rem;
          font-weight: 700;
          color: #f4f4f4;
          margin: 0;
          letter-spacing: -0.5px;
        }
        
        .logo-subtitle {
          font-family: 'Lato', sans-serif;
          font-size: 0.7rem;
          color: #b8860b;
          letter-spacing: 1.5px;
          text-transform: uppercase;
          display: block;
          margin-top: -2px;
        }
        
        .logo-link {
          text-decoration: none;
          transition: all 0.3s ease;
        }
        
        .logo-link:hover {
          opacity: 0.8;
        }
        
        .nav-list {
          display: flex;
          list-style: none;
          margin: 0;
          padding: 0;
          gap: 2rem;
        }
        
        .nav-link {
          font-family: 'Lato', sans-serif;
          color: #e0e0e0;
          text-decoration: none;
          font-size: 1rem;
          font-weight: 400;
          transition: all 0.3s ease;
          position: relative;
          padding: 0.5rem 0;
        }
        
        .nav-link:hover {
          color: #b8860b;
        }
        
        .nav-link::after {
          content: '';
          position: absolute;
          bottom: 0;
          left: 0;
          width: 0;
          height: 2px;
          background: #b8860b;
          transition: width 0.3s ease;
        }
        
        .nav-link:hover::after {
          width: 100%;
        }
        
        .nav-item.subtle {
          margin-left: 1rem;
          position: relative;
        }
        
        .nav-item.subtle::before {
          content: '•';
          color: #666;
          margin-right: 1rem;
        }
        
        .subtle-link {
          font-size: 0.9rem;
          color: #999 !important;
        }
        
        .subtle-link:hover {
          color: #b8860b !important;
        }
        
        .language-selector {
          position: relative;
        }
        
        .language-btn {
          background: rgba(184, 134, 11, 0.1);
          border: 1px solid rgba(184, 134, 11, 0.3);
          border-radius: 4px;
          padding: 0.5rem 1rem;
          color: #e0e0e0;
          cursor: pointer;
          display: flex;
          align-items: center;
          gap: 0.5rem;
          transition: all 0.3s ease;
        }
        
        .language-btn:hover {
          background: rgba(184, 134, 11, 0.2);
        }
        
        .language-dropdown {
          position: absolute;
          top: 100%;
          right: 0;
          background: #1a1a1a;
          border: 1px solid rgba(184, 134, 11, 0.3);
          border-radius: 4px;
          padding: 0.5rem;
          min-width: 150px;
          display: none;
          margin-top: 0.5rem;
        }
        
        .language-dropdown.show {
          display: block;
        }
        
        .lang-option {
          display: block;
          padding: 0.5rem 1rem;
          color: #e0e0e0;
          text-decoration: none;
          transition: all 0.3s ease;
          border-radius: 2px;
        }
        
        .lang-option:hover {
          background: rgba(184, 134, 11, 0.1);
          color: #b8860b;
        }
        
        .mobile-menu-btn {
          display: none;
          flex-direction: column;
          background: none;
          border: none;
          cursor: pointer;
          padding: 0.5rem;
        }
        
        .mobile-menu-btn span {
          width: 25px;
          height: 2px;
          background: #e0e0e0;
          margin: 3px 0;
          transition: 0.3s;
        }
        
        @media (max-width: 768px) {
          .header-container {
            padding: 0 1rem;
          }
        
          .main-nav, .language-selector {
            display: none;
          }
        
          .mobile-menu-btn {
            display: flex;
          }
        
          .logo-text {
            font-size: 1.4rem;
          }
        
          .logo-subtitle {
            font-size: 0.6rem;
          }
        }
      </style>
      
      <header class="header">
        <div class="header-container">
          <div class="logo">
            <a href="index.html" class="logo-link">
              <h1 class="logo-text" data-i18n="site_title">La Fragua del Logos</h1>
              <span class="logo-subtitle" data-i18n="site_subtitle">Forjando Palabras, Creando Sentido</span>
            </a>
          </div>

          <nav class="main-nav">
            <ul class="nav-list">
              <li class="nav-item"><a href="index.html" class="nav-link" data-i18n="nav_home">Inicio</a></li>
              <li class="nav-item"><a href="#services" class="nav-link" data-i18n="nav_services">Servicios</a></li>
              <li class="nav-item"><a href="blog.html" class="nav-link" data-i18n="nav_blog">Blog</a></li>
              <li class="nav-item"><a href="#contact" class="nav-link" data-i18n="nav_contact">Contacto</a></li>
              <li class="nav-item subtle">
                <a href="about.html" class="nav-link subtle-link" data-i18n="nav_about">Sobre Mí</a>
              </li>
            </ul>
          </nav>

          <div class="language-selector">
            <button class="language-btn" id="languageToggle">
              <span class="flag">🇪🇸</span>
              <span class="language-code">ES</span>
            </button>
            <div class="language-dropdown" id="languageDropdown">
              <a href="#" data-lang="es" class="lang-option">🇪🇸 Español</a>
              <a href="#" data-lang="en" class="lang-option">🇬🇧 English</a>
              <a href="#" data-lang="fr" class="lang-option">🇫🇷 Français</a>
            </div>
          </div>

          <button class="mobile-menu-btn" id="mobileMenuToggle">
            <span></span>
            <span></span>
            <span></span>
          </button>
        </div>
      </header>
      <script>
        document.addEventListener('DOMContentLoaded', () => {
          const shadowRoot = this.shadowRoot;
          const languageToggle = shadowRoot.getElementById('languageToggle');
          const languageDropdown = shadowRoot.getElementById('languageDropdown');
          
          // Language toggle
          languageToggle.addEventListener('click', (e) => {
            e.stopPropagation();
            languageDropdown.classList.toggle('show');
          });

          // Language selection
          shadowRoot.querySelectorAll('.lang-option').forEach(option => {
            option.addEventListener('click', (e) => {
              e.preventDefault();
              const lang = option.getAttribute('data-lang');
              localStorage.setItem('language', lang);
              document.dispatchEvent(new CustomEvent('languageChange', { detail: lang }));
              languageDropdown.classList.remove('show');
            });
          });

          // Close dropdown when clicking outside
          document.addEventListener('click', () => {
            languageDropdown.classList.remove('show');
          });

          // Mobile menu toggle
          const mobileMenuToggle = shadowRoot.getElementById('mobileMenuToggle');
          const mainNav = shadowRoot.querySelector('.main-nav');
          
          mobileMenuToggle.addEventListener('click', () => {
            const isHidden = mainNav.style.display === 'none';
            mainNav.style.display = isHidden ? 'block' : 'none';
            feather.replace();
          });

          feather.replace();
        });
      </script>
`;
  }
}

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