class CustomSidebar extends HTMLElement { constructor() { super(); this.attachShadow({ mode: 'open' }); } connectedCallback() { this.shadowRoot.innerHTML = ` `; this.setupMobileMenu(); } } customElements.define('custom-sidebar', CustomSidebar); // Sidebar functions function startNewChat() { clearChat(); } function loadChatHistory(chatId) { console.log('Loading chat history for:', chatId); document.querySelectorAll('.chat-item').forEach(item => { item.classList.remove('active'); }); const clickedChat = document.querySelector(`.chat-item[data-id="${chatId}"]`); if (clickedChat) { clickedChat.classList.add('active'); } } function openAccount() { console.log('Opening account settings...'); }