document.addEventListener('DOMContentLoaded', () => {
    const chatIcon = document.getElementById('chat-icon');
    const chatWindow = document.getElementById('chat-window');
    const closeChat = document.getElementById('close-chat');
    const chatInput = document.getElementById('chat-input');
    const chatSend = document.getElementById('chat-send');
    const chatMessages = document.getElementById('chat-messages');

    chatIcon.addEventListener('click', () => {
        chatWindow.classList.toggle('open');
    });

    closeChat.addEventListener('click', () => {
        chatWindow.classList.remove('open');
    });

    const addMessage = (message, sender) => {
        const messageElement = document.createElement('div');
        messageElement.classList.add('chat-message', sender);
        messageElement.textContent = message;
        chatMessages.appendChild(messageElement);
        chatMessages.scrollTop = chatMessages.scrollHeight;
    };

    const handleSendMessage = () => {
        const message = chatInput.value.trim();
        if (message) {
            addMessage(message, 'user');
            chatInput.value = '';

            // Placeholder bot response
            setTimeout(() => {
                addMessage("Thanks for your message! I'm just a prototype, but I'll be able to help soon.", 'bot');
            }, 1000);
        }
    };

    chatSend.addEventListener('click', handleSendMessage);

    chatInput.addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            handleSendMessage();
        }
    });

    // Initial bot message
    setTimeout(() => {
        addMessage("Hello! How can I help you today?", 'bot');
    }, 1500);
});