class CustomThemeToggle extends HTMLElement {
    connectedCallback() {
        this.attachShadow({ mode: 'open' });
        this.render();
    }

    render() {
        const isDark = document.documentElement.classList.contains('dark');
        
        this.shadowRoot.innerHTML = `
            <style>
                .toggle-container {
                    display: flex;
                    align-items: center;
                }
                
                .toggle-btn {
                    background: none;
                    border: none;
                    cursor: pointer;
                    padding: 0.5rem;
                    border-radius: 50%;
                    width: 40px;
                    height: 40px;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    transition: all 0.3s ease;
                }
                .toggle-btn {
                    background: rgba(0,0,0,0.05);
                }
                
                .toggle-btn:hover {
                    background: rgba(0,0,0,0.1);
                }
                
                .dark .toggle-btn {
                    background: rgba(255,255,255,0.1);
                }
                
                .dark .toggle-btn:hover {
                    background: rgba(255,255,255,0.2);
                }

                .tooltip {
                    position: absolute;
                    right: 100%;
                    margin-right: 8px;
                    padding: 4px 8px;
                    background: #374151;
                    color: white;
                    border-radius: 4px;
                    font-size: 12px;
                    white-space: nowrap;
                    opacity: 0;
                    transition: opacity 0.2s;
                    pointer-events: none;
                }

                .toggle-btn:hover .tooltip {
                    opacity: 1;
                }

                .dark .tooltip {
                    background: #1F2937;
                }
.toggle-icon {
                    width: 20px;
                    height: 20px;
                }
            </style>
            
            <div class="toggle-container">
                <button class="toggle-btn">
                    <i data-feather="${isDark ? 'sun' : 'moon'}" class="toggle-icon"></i>
                    <span class="tooltip">${isDark ? 'Light Mode' : 'Dark Mode'}</span>
                </button>
</div>
        `;
        
        this.shadowRoot.querySelector('.toggle-btn').addEventListener('click', () => {
            const html = document.documentElement;
            const isDark = html.classList.contains('dark');
            
            if (isDark) {
                html.classList.remove('dark');
                localStorage.setItem('theme', 'light');
            } else {
                html.classList.add('dark');
                localStorage.setItem('theme', 'dark');
            }
            
            this.render();
            feather.replace();
        });
        
        feather.replace();
    }
}

customElements.define('custom-theme-toggle', CustomThemeToggle);