components/auth-modal.js

class AuthModal extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        .modal {
          position: fixed;
          top: 0;
          left: 0;
          width: 100%;
          height: 100%;
          background: rgba(0,0,0,0.5);
          display: none;
          justify-content: center;
          align-items: center;
          z-index: 1000;
        }
        .modal-content {
          background: white;
          padding: 2rem;
          border-radius: 0.5rem;
          width: 100%;
          max-width: 400px;
        }
        .close-btn {
          float: right;
          cursor: pointer;
        }
        form {
          display: flex;
          flex-direction: column;
          gap: 1rem;
        }
        input {
          padding: 0.5rem;
          border: 1px solid #ccc;
          border-radius: 0.25rem;
        }
        button {
          padding: 0.5rem;
          background: #4299e1;
          color: white;
          border: none;
          border-radius: 0.25rem;
          cursor: pointer;
        }
      </style>
      <div class="modal" id="authModal">
        <div class="modal-content">
          <span class="close-btn" id="closeModal">&times;</span>
          <h2>Sign In</h2>
          <form id="authForm">
            <input type="email" placeholder="Email" required>
            <input type="password" placeholder="Password" required>
            <button type="submit">Sign In</button>
          </form>
        </div>
      </div>
    `;

    const modal = this.shadowRoot.getElementById('authModal');
    const closeBtn = this.shadowRoot.getElementById('closeModal');
    const authForm = this.shadowRoot.getElementById('authForm');

    // Show modal when auth is required
    document.addEventListener('auth-required', () => {
      modal.style.display = 'flex';
    });

    closeBtn.addEventListener('click', () => {
      modal.style.display = 'none';
    });

    authForm.addEventListener('submit', (e) => {
      e.preventDefault();
      // Handle auth logic here
      modal.style.display = 'none';
      document.dispatchEvent(new CustomEvent('auth-success'));
    });
  }
}

customElements.define('auth-modal', AuthModal);