class CustomDropdown extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        .dropdown {
          position: relative;
          display: inline-block;
        }
        .dropdown-btn {
          background: none;
          border: none;
          cursor: pointer;
          color: #374151;
          font-weight: 500;
          transition: color 0.2s;
          display: flex;
          align-items: center;
          gap: 0.25rem;
        }
        .dropdown-btn:hover {
          color: #13aa52;
        }
        .dropdown-content {
          position: absolute;
          background-color: white;
          min-width: 160px;
          box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.1);
          border-radius: 0.5rem;
          z-index: 1;
          opacity: 0;
          visibility: hidden;
          transform: translateY(10px);
          transition: all 0.2s ease;
        }
        .dropdown-content.show {
          opacity: 1;
          visibility: visible;
          transform: translateY(0);
        }
        .dropdown-content a {
          color: #374151;
          padding: 0.75rem 1rem;
          text-decoration: none;
          display: block;
          transition: background-color 0.2s;
          font-size: 0.875rem;
        }
        .dropdown-content a:hover {
          background-color: #f3f4f6;
          color: #13aa52;
        }
        .icon {
          transition: transform 0.2s;
        }
        .dropdown.active .icon {
          transform: rotate(180deg);
        }
      </style>
      <div class="dropdown">
        <button class="dropdown-btn">
          <span>${this.getAttribute('title') || 'Menu'}</span>
          <svg class="icon" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
            <polyline points="6 9 12 15 18 9"></polyline>
          </svg>
        </button>
        <div class="dropdown-content">
          <slot></slot>
        </div>
      </div>
    `;

    const dropdownBtn = this.shadowRoot.querySelector('.dropdown-btn');
    const dropdownContent = this.shadowRoot.querySelector('.dropdown-content');
    const dropdown = this.shadowRoot.querySelector('.dropdown');

    dropdownBtn.addEventListener('click', (e) => {
      e.stopPropagation();
      dropdownContent.classList.toggle('show');
      dropdown.classList.toggle('active');
    });

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

customElements.define('custom-dropdown', CustomDropdown);