components/sidebar.js

class CustomSidebar extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        aside {
          width: 250px;
          background: white;
          height: calc(100vh - 64px);
          border-right: 1px solid #e5e7eb;
          padding: 1rem 0;
        }
        .menu-item {
          padding: 0.75rem 1.5rem;
          display: flex;
          align-items: center;
          color: #4b5563;
          cursor: pointer;
        }
        .menu-item:hover {
          background: #f3f4f6;
          color: #3b82f6;
        }
        .menu-item i {
          margin-right: 0.75rem;
          font-size: 1.25rem;
        }
        .active {
          background: #eff6ff;
          color: #3b82f6;
          border-right: 2px solid #3b82f6;
        }
      </style>
      <aside>
        <a href="/" class="menu-item active">
          <i class="mdi mdi-view-dashboard"></i>
          Dashboard
        </a>
        <a href="#" class="menu-item">
          <i class="mdi mdi-robot"></i>
          Agents
        </a>
        <a href="#" class="menu-item">
          <i class="mdi mdi-cog"></i>
          Settings
        </a>
        <a href="#" class="menu-item">
          <i class="mdi mdi-chart-bar"></i>
          Analytics
        </a>
      </aside>
    `;
  }
}
customElements.define('custom-sidebar', CustomSidebar);