body{margin:0;background:#edf2f7;color:#172b4d;font:17px system-ui}main{max-width:700px;margin:9vh auto;padding:36px;background:white;border-radius:18px;box-shadow:0 10px 50px #172b4d12}h1{font-size:32px}p{line-height:1.6}button{padding:13px 24px;border:0;border-radius:8px;background:#2457d6;color:white;font:inherit;cursor:pointer}button:disabled{opacity:.5}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f4f7fb;padding:16px;border-radius:8px;font-size:13px}
.probe{position:absolute;visibility:hidden;box-sizing:content-box;width:37px;height:19px;padding:0;border:0}