document.addEventListener('DOMContentLoaded', function() {
    // Search functionality for sidebar
    const searchInput = document.querySelector('.search-input input');
    const navItems = document.querySelectorAll('.nav-item');
    
    searchInput.addEventListener('input', function() {
        const searchTerm = this.value.toLowerCase();
        
        navItems.forEach(item => {
            const label = item.querySelector('.nav-label').textContent.toLowerCase();
            if (label.includes(searchTerm)) {
                item.style.display = 'flex';
            } else {
                item.style.display = 'none';
            }
        });
    });
    
    // Active state for nav items
    navItems.forEach(item => {
        item.addEventListener('click', function() {
            navItems.forEach(i => i.classList.remove('active'));
            this.classList.add('active');
        });
    });
    
    // Input bar functionality
    const messageInput = document.querySelector('.text-input input');
    const sendBtn = document.querySelector('.send-btn');
    
    function updateSendButton() {
        sendBtn.disabled = messageInput.value.trim() === '';
    }
    
    messageInput.addEventListener('input', updateSendButton);
    
    messageInput.addEventListener('keydown', function(e) {
        if (e.key === 'Enter' && !sendBtn.disabled) {
            e.preventDefault();
            // Here you would handle sending the message
            console.log('Message sent:', this.value);
            this.value = '';
            updateSendButton();
        }
    });
    
    sendBtn.addEventListener('click', function() {
        if (!this.disabled) {
            // Here you would handle sending the message
            console.log('Message sent:', messageInput.value);
            messageInput.value = '';
            updateSendButton();
        }
    });
    
    // Microphone button placeholder
    const micBtn = document.querySelector('.input-btn:nth-child(3)');
    micBtn.addEventListener('click', function() {
        alert('Microphone functionality would be implemented here');
    });
    
    // Initialize
    updateSendButton();
    feather.replace();
});