elements.sendBtn.on('click', sendMessage);

        elements.chatInput.on('keydown', function(e) {
            // Prevent sending during IME composition (Japanese, Chinese, etc.)
            if (e.key === 'Enter' && !e.shiftKey && !e.isComposing) {
                e.preventDefault();
                sendMessage();
            }
        });

        // Handle IME composition for older browsers