// Message action delegation
        elements.chatMessages.on('click', '.copy-btn', function() {
            var messageContent = $(this).closest('.chat-message').find('.message-text');
            copyToClipboard(messageContent.text(), $(this));
        });
    }

    /**
     * Auto-resize textarea based on content
     */
    function autoResizeTextarea() {
        var textarea = elements.chatInput[0];