document.addEventListener('DOMContentLoaded', function() {
    const chatWidget = document.querySelector('.chat-widget');
    const chatWindow = document.querySelector('.chat-window');
    const closeButton = document.querySelector('.chat-header .btn-close');
    const sendButton = document.querySelector('.chat-footer .btn-primary');
    const messageInput = document.querySelector('.chat-footer .form-control');
    const chatBody = document.querySelector('.chat-body');

    if (chatWidget) {
        chatWidget.addEventListener('click', function() {
            if (chatWindow.style.display === 'flex') {
                chatWindow.style.display = 'none';
            } else {
                chatWindow.style.display = 'flex';
            }
        });
    }

    if (closeButton) {
        closeButton.addEventListener('click', function() {
            chatWindow.style.display = 'none';
        });
    }

    function sendMessage() {
        const messageText = messageInput.value.trim();
        if (messageText === '') return;

        // Add user message to chat body
        const userMessage = document.createElement('div');
        userMessage.classList.add('message', 'user-message');
        userMessage.textContent = messageText;
        chatBody.appendChild(userMessage);

        // Clear input
        messageInput.value = '';

        // Scroll to bottom
        chatBody.scrollTop = chatBody.scrollHeight;

        // Bot reply
        setTimeout(() => {
            const botMessage = document.createElement('div');
            botMessage.classList.add('message', 'bot-message');
            botMessage.textContent = 'Thanks for your message! This is a pre-written response. AI integration is coming soon.';
            chatBody.appendChild(botMessage);
            chatBody.scrollTop = chatBody.scrollHeight;
        }, 500);
    }

    if (sendButton) {
        sendButton.addEventListener('click', sendMessage);
    }

    if (messageInput) {
        messageInput.addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                sendMessage();
            }
        });
    }
});