class CustomNavbar extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        nav {
          background: rgba(17, 24, 39, 0.8);
          backdrop-filter: blur(10px);
          padding: 1rem 2rem;
          display: flex;
          justify-content: space-between;
          align-items: center;
          position: relative;
          z-index: 50;
          border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .logo {
          color: white;
          font-weight: bold;
          font-size: 1.25rem;
          background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
          -webkit-background-clip: text;
          -webkit-text-fill-color: transparent;
        }
        ul {
          display: flex;
          gap: 1.5rem;
          list-style: none;
          margin: 0;
          padding: 0;
        }
        a {
          color: rgba(255, 255, 255, 0.8);
          text-decoration: none;
          transition: color 0.2s;
          font-weight: 500;
          display: flex;
          align-items: center;
          gap: 0.5rem;
        }
        a:hover {
          color: white;
        }
        @media (max-width: 768px) {
          nav {
            flex-direction: column;
            gap: 1rem;
            padding: 1rem;
          }
          ul {
            width: 100%;
            justify-content: center;
          }
        }
      </style>
      <nav>
        <div class="logo">Probability Paradox</div>
        <ul>
          <li><a href="/"><i data-feather="home"></i> <span class="nav-text" data-i18n="home">Home</span></a></li>
          <li><a href="#"><i data-feather="share-2"></i> <span class="nav-text" data-i18n="share">Share</span></a></li>
          <li>
            <div class="language-switcher">
              <i data-feather="globe"></i>
              <select id="language-select">
                <option value="en">English</option>
                <option value="zh">中文</option>
              </select>
            </div>
          </li>
        </ul>
</nav>
    `;
      // Add language change handler
      setTimeout(() => {
        const langSelect = this.shadowRoot.getElementById('language-select');
        langSelect.addEventListener('change', (e) => {
          if (typeof changeLanguage === 'function') {
            changeLanguage(e.target.value);
          }
        });

        // Add click handler for share button
        const shareBtn = this.shadowRoot.querySelector('[data-feather="share-2"]').closest('a');
shareBtn.addEventListener('click', (e) => {
        e.preventDefault();
        if (typeof shareResults === 'function') {
          shareResults();
        }
      });
      feather.replace();
    }, 100);
  }
}
customElements.define('custom-navbar', CustomNavbar);