body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;line-height:1.5;margin:0;padding:0 1rem 2rem}
header{padding:1rem 0;border-bottom:1px solid #eee}
.controls{display:flex;gap:1rem;align-items:center;margin:1rem 0}
#tbl{width:100%;border-collapse:collapse}
#tbl th,#tbl td{border:1px solid #ddd;padding:.5rem;vertical-align:top}
#tbl thead{background:#fafafa}