.sprigg-container { 
    max-width: 500px; margin: 20px auto; padding: 15px; border: 1px solid #ddd; 
    background: #fafafa; border-radius: 8px; text-align: center; 
}
#sprigg-url { width: 100%; padding: 8px; margin-bottom: 10px; }
#sprigg-check-btn { padding: 8px 16px; cursor: pointer; background: #0073aa; color: #fff; border: none; border-radius: 4px; }
#sprigg-check-btn:hover { background: #005f8a; }