class CustomNewsletter extends HTMLElement {
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    max-width: 600px;
                    margin: 0 auto;
                    background-color: white;
                    border-radius: 0.5rem;
                    padding: 2rem;
                    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
                }
                .newsletter-title {
                    font-size: 1.5rem;
                    font-weight: 600;
                    margin-bottom: 1rem;
                    color: #111827;
                    text-align: center;
                }
                .newsletter-description {
                    color: #6b7280;
                    text-align: center;
                    margin-bottom: 2rem;
                }
                .newsletter-form {
                    display: flex;
                    flex-direction: column;
                    gap: 1rem;
                }
                .form-group {
                    display: flex;
                    flex-direction: column;
                    gap: 0.5rem;
                }
                .form-label {
                    font-weight: 500;
                    color: #374151;
                }
                .form-input {
                    padding: 0.75rem 1rem;
                    border: 1px solid #d1d5db;
                    border-radius: 0.375rem;
                    font-size: 1rem;
                    transition: border-color 0.3s;
                }
                .form-input:focus {
                    outline: none;
                    border-color: #4f46e5;
                }
                .submit-btn {
                    background-color: #4f46e5;
                    color: white;
                    padding: 0.75rem 1rem;
                    border: none;
                    border-radius: 0.375rem;
                    font-size: 1rem;
                    font-weight: 500;
                    cursor: pointer;
                    transition: background-color 0.3s;
                }