class CustomNavbar extends HTMLElement {
    connectedCallback() {
        this.attachShadow({ mode: 'open' });
        this.shadowRoot.innerHTML = `
            <style>
                nav {
                    background-color: rgba(17, 24, 39, 0.9);
                    backdrop-filter: blur(8px);
                    padding: 1rem 2rem;
                }
                
                .nav-container {
                    display: flex;
                    justify-content: space-between;
                    align-items: center;
                    max-width: 1200px;
                    margin: 0 auto;
                }
                
                .logo {
                    font-size: 1.5rem;
                    font-weight: bold;
                    color: #9c27b0;
                    text-decoration: none;
                }
                
                .nav-links {
                    display: flex;
                    gap: 1.5rem;
                }
                
                .nav-links a {
                    color: #e5e7eb;
                    text-decoration: none;
                    transition: color 0.2s;
                }
                
                .nav-links a:hover {
                    color: #9c27b0;
                }
                
                @media (max-width: 768px) {
                    .nav-container {
                        flex-direction: column;
                        gap: 1rem;
                    }
                    
                    .nav-links {
                        width: 100%;
                        justify-content: space-around;
                    }
                }
            </style>
            <nav>
                <div class="nav-container">
                    <a href="/" class="logo">璇璣圖 Explorer</a>
                    <div class="nav-links">
                        <a href="/">Home</a>
                        <a href="/history">History</a>
                        <a href="/methods">Reading Methods</a>
                        <a href="/about">About</a>
                    </div>
                </div>
            </nav>
        `;
    }
}

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