body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial;padding:16px;background:#f7f8fb;color:#222}h1{font-size:18px}textarea{min-height:140px;background:#fff;resize:vertical}#iter,input[type=password],input[type=text],textarea{width:100%;padding:8px;border-radius:6px;border:1px solid #ddd}.row{margin-bottom:12px}.row,.two{display:grid;gap:8px}.two{grid-template-columns:1fr 1fr}button{padding:8px 12px;border-radius:6px;border:0;background:#2b8aec;color:#fff;cursor:pointer}.muted{color:#666;font-size:13px}pre{background:#111;color:#dcdcdc;padding:10px;border-radius:6px;overflow:auto}.ok{color:green}.err{color:#c53737}.panel{background:#fff;padding:12px;border-radius:8px;border:1px solid #e6e9ef}