components/header.js

class CustomHeader extends HTMLElement {
    connectedCallback() {
        this.attachShadow({ mode: 'open' });
        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    width: 100%;
                }
                header {
                    background-color: white;
                    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
                }
                .container {
                    max-width: 1200px;
                    margin: 0 auto;
                    padding: 1rem;
                }
                .logo {
                    font-weight: 700;
                    font-size: 1.5rem;
                    color: #3b82f6;
                }
                nav a {
                    color: #4b5563;
                    transition: color 0.2s;
                }
                nav a:hover {
                    color: #3b82f6;
                }
            </style>
            <header>
                <div class="container mx-auto px-4 py-4 flex justify-between items-center">
                    <a href="/" class="logo flex items-center">
                        <i data-feather="message-square" class="mr-2"></i>
                        Chatty McRagFace
                    </a>
                    <nav class="hidden md:flex space-x-6">
                        <a href="#" class="flex items-center">
                            <i data-feather="home" class="mr-1"></i>
                            Home
                        </a>
                        <a href="#" class="flex items-center">
                            <i data-feather="info" class="mr-1"></i>
                            About
                        </a>
                        <a href="#" class="flex items-center">
                            <i data-feather="settings" class="mr-1"></i>
                            Settings
                        </a>
                    </nav>
                    <button class="md:hidden">
                        <i data-feather="menu"></i>
                    </button>
                </div>
            </header>
        `;
    }
}

customElements.define('custom-header', CustomHeader);