class CustomNavbar extends HTMLElement {
    connectedCallback() {
        this.attachShadow({ mode: 'open' });
        this.shadowRoot.innerHTML = `
            <style>
                * {
                    margin: 0;
                    padding: 0;
                    box-sizing: border-box;
                }
                
                nav {
                    background: white;
                    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
                    position: fixed;
                    width: 100%;
                    top: 0;
                    z-index: 1000;
                    transition: all 0.3s ease;
                }
                
                .nav-container {
                    max-width: 1280px;
                    margin: 0 auto;
                    padding: 0 1rem;
                    display: flex;
                    justify-content: space-between;
                    align-items: center;
                    height: 80px;
                }
                
                .logo {
                    display: flex;
                    align-items: center;
                    font-size: 1.5rem;
                    font-weight: 800;
                    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                    -webkit-background-clip: text;
                    -webkit-text-fill-color: transparent;
                    background-clip: text;
                    text-decoration: none;
                    transition: transform 0.3s ease;
                }
                
                .logo:hover {
                    transform: scale(1.05);
                }
                
                .logo-icon {
                    width: 40px;
                    height: 40px;
                    margin-right: 0.5rem;
                }
                
                .nav-links {
                    display: flex;
                    gap: 2rem;
                    align-items: center;
                    list-style: none;
                }
                
                .nav-link {
                    color: #4a5568;
                    text-decoration: none;
                    font-weight: 500;
                    position: relative;
                    transition: color 0.3s ease;
                    padding: 0.5rem 0;
                }
                
                .nav-link::after {
                    content: '';
                    position: absolute;
                    bottom: 0;
                    left: 0;
                    width: 0;
                    height: 2px;
                    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                    transition: width 0.3s ease;
                }
                
                .nav-link:hover {
                    color: #667eea;
                }
                
                .nav-link:hover::after {
                    width: 100%;
                }
                
                .nav-link.active {
                    color: #667eea;
                }
                
                .nav-link.active::after {
                    width: 100%;
                }
                
                .cta-button {
                    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                    color: white;
                    padding: 0.75rem 1.5rem;
                    border-radius: 50px;
                    text-decoration: none;
                    font-weight: 600;
                    transition: all 0.3s ease;
                    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
                }
                
                .cta-button:hover {
                    transform: translateY(-2px);
                    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
                }
                
                .mobile-menu-toggle {
                    display: none;
                    background: none;
                    border: none;
                    cursor: pointer;
                    padding: 0.5rem;
                }
                
                .mobile-menu-toggle svg {
                    width: 24px;
                    height: 24px;
                    color: #4a5568;
                }
                
                .mobile-menu {
                    display: none;
                    position: absolute;
                    top: 100%;
                    left: 0;
                    right: 0;
                    background: white;
                    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
                    padding: 1rem;
                    transform: translateY(-100%);
                    opacity: 0;
                    transition: all 0.3s ease;
                }
                
                .mobile-menu.active {
                    transform: translateY(0);
                    opacity: 1;
                }
                
                .mobile-menu-links {
                    list-style: none;
                    display: flex;
                    flex-direction: column;
                    gap: 1rem;
                }
                
                .mobile-menu-link {
                    color: #4a5568;
                    text-decoration: none;
                    font-weight: 500;
                    padding: 0.75rem;
                    border-radius: 0.5rem;
                    transition: all 0.3s ease;
                }
                
                .mobile-menu-link:hover {
                    background: #f7fafc;
                    color: #667eea;
                }
                
                .mobile-menu-link.active {
                    color: #667eea;
                    background: #f7fafc;
                }
                
                @media (max-width: 768px) {
                    .nav-links {
                        display: none;
                    }
                    
                    .mobile-menu-toggle {
                        display: block;
                    }
                    
                    .mobile-menu {
                        display: block;
                    }
                }
            </style>
            
            <nav>
                <div class="nav-container">
                    <a href="index.html" class="logo">
                        <span class="logo-icon">🤖</span>
                        MixTAO Lab
                    </a>
<ul class="nav-links">
                        <li><a href="index.html" class="nav-link active">Home</a></li>
                        <li><a href="products.html" class="nav-link">Products</a></li>
                        <li><a href="about.html" class="nav-link">About</a></li>
                        <li><a href="contact.html" class="nav-link">Contact</a></li>
                        <li><a href="contact.html" class="cta-button">Get Started</a></li>
                    </ul>
                    
                    <button class="mobile-menu-toggle" onclick="toggleMobileMenu()">
                        <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16" />
                        </svg>
                    </button>
                </div>
                
                <div class="mobile-menu" id="mobileMenu">
                    <ul class="mobile-menu-links">
                        <li><a href="index.html" class="mobile-menu-link active">Home</a></li>
                        <li><a href="products.html" class="mobile-menu-link">Products</a></li>
                        <li><a href="about.html" class="mobile-menu-link">About</a></li>
                        <li><a href="contact.html" class="mobile-menu-link">Contact</a></li>
                        <li><a href="contact.html" class="mobile-menu-link" style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white;">Get Started</a></li>
                    </ul>
                </div>
            </nav>
        `;
        
        // Set active link based on current page
        this.setActiveLink();
        
        // Add scroll effect
        this.addScrollEffect();
    }
    
    setActiveLink() {
        const currentPath = window.location.pathname.split('/').pop() || 'index.html';
        const links = this.shadowRoot.querySelectorAll('.nav-link, .mobile-menu-link');
        
        links.forEach(link => {
            link.classList.remove('active');
            const href = link.getAttribute('href');
            if (href === currentPath) {
                link.classList.add('active');
            }
        });
    }
    
    addScrollEffect() {
        const nav = this.shadowRoot.querySelector('nav');
        
        window.addEventListener('scroll', () => {
            if (window.scrollY > 50) {
                nav.style.boxShadow = '0 4px 6px rgba(0,0,0,0.1)';
                nav.style.background = 'rgba(255, 255, 255, 0.95)';
                nav.style.backdropFilter = 'blur(10px)';
            } else {
                nav.style.boxShadow = '0 2px 4px rgba(0,0,0,0.1)';
                nav.style.background = 'white';
                nav.style.backdropFilter = 'none';
            }
        });
    }
}

// Mobile menu toggle function
window.toggleMobileMenu = function() {
    const mobileMenu = document.querySelector('custom-navbar').shadowRoot.getElementById('mobileMenu');
    mobileMenu.classList.toggle('active');
};

customElements.define('custom-navbar', CustomNavbar);