components/user-menu.js

class UserMenu extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        :host {
          display: block;
        }
        
        .user-menu {
          position: relative;
        }
        
        .user-button {
          background: none;
          border: none;
          cursor: pointer;
          display: flex;
          align-items: center;
          padding: 0.5rem;
          border-radius: 9999px;
          transition: background-color 0.3s ease;
        }
        
        .user-button:hover {
          background-color: #f3f4f6;
        }
        
        .avatar {
          width: 32px;
          height: 32px;
          border-radius: 50%;
          background-color: #3b82f6;
          color: white;
          display: flex;
          align-items: center;
          justify-content: center;
          font-weight: 500;
          font-size: 0.875rem;
        }
        
        .dropdown {
          position: absolute;
          top: 100%;
          right: 0;
          background: white;
          border-radius: 0.5rem;
          box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
          width: 200px;
          z-index: 1000;
          display: none;
        }
        
        .dropdown.open {
          display: block;
        }
        
        .dropdown-item {
          display: block;
          padding: 0.75rem 1rem;
          text-decoration: none;
          color: #374151;
          font-weight: 500;
          transition: background-color 0.3s ease;
        }
        
        .dropdown-item:hover {
          background-color: #f3f4f6;
        }
        
        .divider {
          height: 1px;
          background-color: #e5e7eb;
          margin: 0.25rem 0;
        }
      </style>
      
      <div class="user-menu">
        <button class="user-button" id="userButton">
          <div class="avatar">U</div>
        </button>
        
        <div class="dropdown" id="dropdown">
          <a href="/profile.html" class="dropdown-item">Profile</a>
          <a href="/settings.html" class="dropdown-item">Settings</a>
          <div class="divider"></div>
          <a href="/logout.html" class="dropdown-item">Log Out</a>
        </div>
      </div>
    `;
    
    // Add event listeners after content is rendered
    setTimeout(() => {
      this.setupEventListeners();
    }, 0);
  }
  
  setupEventListeners() {
    const userButton = this.shadowRoot.getElementById('userButton');
    const dropdown = this.shadowRoot.getElementById('dropdown');
    
    userButton.addEventListener('click', () => {
      dropdown.classList.toggle('open');
    });
    
    // Close dropdown when clicking outside
    document.addEventListener('click', (event) => {
      if (!this.contains(event.target)) {
        dropdown.classList.remove('open');
      }
    });
  }
}

customElements.define('user-menu', UserMenu);