:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:#213547}body{margin:0;padding:2rem;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;justify-content:center;align-items:center}#app{background:#fff;padding:3rem;border-radius:12px;box-shadow:0 10px 40px #0003;max-width:400px;width:100%}h1{margin-top:0;color:#667eea;text-align:center}h2{color:#667eea}sl-details::part(header){padding:.2rem;background-color:#667eea;margin-bottom:2px;color:#fff;border-radius:8px}.error{color:red}table.data-table{margin-top:1rem;border-collapse:collapse;width:100%;box-shadow:0 2px 8px #0000001a;border-radius:8px}.data-table td{color:#212529;border:1px solid #e9ecef;padding:.5rem}.data-table tr:nth-child(odd){background-color:#f8f9fa}.data-table tr:hover{background-color:#e9ecef}.data-table-grayed{color:gray}