components/footer.js

class AppFooter extends HTMLElement {
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
    }

    connectedCallback() {
        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    margin-top: auto;
                }
                
                footer {
                    background: #0f172a;
                    color: #cbd5e1;
                    padding: 3rem 1rem 1.5rem;
                }
                
                .container {
                    max-width: 80rem;
                    margin: 0 auto;
                }
                .grid {
                    display: grid;
                    grid-template-columns: repeat(2, 1fr);
                    gap: 1.5rem;
                    margin-bottom: 1.5rem;
                }
                
                @media (min-width: 768px) {
                    .grid {
                        grid-template-columns: repeat(4, 1fr);
                        gap: 2rem;
                        margin-bottom: 2rem;
                    }
                }
                .brand-section {
                    grid-column: 1 / -1;
                }
                
                @media (min-width: 768px) {
                    .brand-section {
                        grid-column: auto;
                    }
                }
                
                .brand-section h3 {
                    color: white;
                    font-size: 1.25rem;
                    font-weight: 800;
                    margin-bottom: 0.75rem;
                    background: linear-gradient(135deg, #34d399 0%, #fbbf24 100%);
                    -webkit-background-clip: text;
                    -webkit-text-fill-color: transparent;
                    background-clip: text;
                }
                
                @media (min-width: 768px) {
                    .brand-section h3 {
                        font-size: 1.5rem;
                        margin-bottom: 1rem;
                    }
                }
                
                .brand-section p {
                    line-height: 1.6;
                    font-size: 0.8125rem;
                }
                
                @media (min-width: 768px) {
                    .brand-section p {
                        font-size: 0.875rem;
                    }
                }
                .links-section h4 {
                    color: white;
                    font-weight: 600;
                    margin-bottom: 0.75rem;
                    font-size: 0.9375rem;
                }
                
                @media (min-width: 768px) {
                    .links-section h4 {
                        margin-bottom: 1rem;
                        font-size: 1rem;
                    }
                }
                
                .links-section ul {
                    list-style: none;
                    padding: 0;
                    margin: 0;
                }
                
                .links-section li {
                    margin-bottom: 0.375rem;
                }
                
                @media (min-width: 768px) {
                    .links-section li {
                        margin-bottom: 0.5rem;
                    }
                }
                
                .links-section a {
                    color: #94a3b8;
                    text-decoration: none;
                    font-size: 0.8125rem;
                    transition: color 0.2s;
                    display: inline-flex;
                    align-items: center;
                    gap: 0.5rem;
                }
                
                @media (min-width: 768px) {
                    .links-section a {
                        font-size: 0.875rem;
                    }
                }
                
                .links-section a:hover {
                    color: #34d399;
                }
                .social-links {
                    display: flex;
                    gap: 0.75rem;
                    margin-top: 0.75rem;
                }
                
                @media (min-width: 768px) {
                    .social-links {
                        gap: 1rem;
                        margin-top: 1rem;
                    }
                }
                
                .social-links a {
                    width: 2.25rem;
                    height: 2.25rem;
                    background: rgba(255, 255, 255, 0.1);
                    border-radius: 50%;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    transition: all 0.2s;
                }
                
                @media (min-width: 768px) {
                    .social-links a {
                        width: 2.5rem;
                        height: 2.5rem;
                    }
                }
                
                .social-links a:hover {
                    background: #059669;
                    transform: translateY(-2px);
                }
                .divider {
                    height: 1px;
                    background: rgba(255, 255, 255, 0.1);
                    margin: 1.5rem 0;
                }
                
                @media (min-width: 768px) {
                    .divider {
                        margin: 2rem 0;
                    }
                }
                
                .bottom-row {
                    display: flex;
                    flex-direction: column;
                    gap: 0.75rem;
                    align-items: center;
                    text-align: center;
                    font-size: 0.8125rem;
                }
                
                @media (min-width: 768px) {
                    .bottom-row {
                        flex-direction: row;
                        justify-content: space-between;
                        text-align: left;
                        font-size: 0.875rem;
                        gap: 1rem;
                    }
                }
                .eco-tag {
                    display: inline-flex;
                    align-items: center;
                    gap: 0.25rem;
                    background: rgba(52, 211, 153, 0.2);
                    color: #34d399;
                    padding: 0.2rem 0.625rem;
                    border-radius: 9999px;
                    font-size: 0.6875rem;
                    font-weight: 600;
                }
                
                @media (min-width: 768px) {
                    .eco-tag {
                        padding: 0.25rem 0.75rem;
                        font-size: 0.75rem;
                    }
                }
</style>
            
            <footer>
                <div class="container">
                    <div class="grid">
                        <div class="brand-section">
                            <h3>🚗 RideShare Zen</h3>
                            <p>Making travel sustainable, affordable, and social. Join thousands of commuters sharing rides and reducing carbon emissions every day.</p>
                            <div class="social-links">
                                <a href="#" aria-label="Twitter">
                                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                                        <path d="M23 3a10.9 10.9 0 0 1-3.14 1.53 4.48 4.48 0 0 0-7.86 3v1A10.66 10.66 0 0 1 3 4s-4 9 5 13a11.64 11.64 0 0 1-7 2c9 5 20 0 20-11.5a4.5 4.5 0 0 0-.08-.83A7.72 7.72 0 0 0 23 3z"></path>
                                    </svg>
                                </a>
                                <a href="#" aria-label="Instagram">
                                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                                        <rect x="2" y="2" width="20" height="20" rx="5" ry="5"></rect>
                                        <path d="M16 11.37A4 4 0 1 1 12.63 8 4 4 0 0 1 16 11.37z"></path>
                                        <line x1="17.5" y1="6.5" x2="17.51" y2="6.5"></line>
                                    </svg>
                                </a>
                                <a href="#" aria-label="LinkedIn">
                                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                                        <path d="M16 8a6 6 0 0 1 6 6v7h-4v-7a2 2 0 0 0-2-2 2 2 0 0 0-2 2v7h-4v-7a6 6 0 0 1 6-6z"></path>
                                        <rect x="2" y="9" width="4" height="12"></rect>
                                        <circle cx="4" cy="4" r="2"></circle>
                                    </svg>
                                </a>
                            </div>
                        </div>
                        
                        <div class="links-section">
                            <h4>Company</h4>
                            <ul>
                                <li><a href="#">About Us</a></li>
                                <li><a href="#">Careers</a></li>
                                <li><a href="#">Press</a></li>
                                <li><a href="#">Blog</a></li>
                            </ul>
                        </div>
                        
                        <div class="links-section">
                            <h4>Support</h4>
                            <ul>
                                <li><a href="#">Help Center</a></li>
                                <li><a href="#">Safety</a></li>
                                <li><a href="#">Cancellation Options</a></li>
                                <li><a href="#">COVID-19 Measures</a></li>
                            </ul>
                        </div>
                        
                        <div class="links-section">
                            <h4>Legal</h4>
                            <ul>
                                <li><a href="#">Terms of Service</a></li>
                                <li><a href="#">Privacy Policy</a></li>
                                <li><a href="#">Cookie Policy</a></li>
                                <li><a href="#">Insurance</a></li>
                            </ul>
                        </div>
                    </div>
                    
                    <div class="divider"></div>
                    
                    <div class="bottom-row">
                        <div>
                            <span class="eco-tag">🌱 Carbon Neutral Platform</span>
                        </div>
                        <div>
                            © 2024 RideShare Zen. All rights reserved.
                        </div>
                    </div>
                </div>
            </footer>
        `;
    }
}

customElements.define('app-footer', AppFooter);