:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;color:#202b32;background:#f3f5f5;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;min-height:100svh;padding:36px 16px;display:grid;place-items:center}
.shell{width:min(100%,450px)}
.header{display:flex;align-items:center;gap:12px;margin:0 0 23px 2px}
.header strong,.header span{display:block}.header strong{font-size:15px}.header span{font-size:12px;color:#62727a;margin-top:3px}
.mark{width:43px;height:43px;display:grid;place-items:center;background:#203842;color:#fff;border-radius:6px;font-size:13px;font-weight:750}
.panel{background:#fff;border:1px solid #dce2e1;border-radius:8px;padding:28px}
.heading{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:6px;margin-bottom:27px}
h1{margin:0;font-size:24px;line-height:1.3;font-weight:700}.version{font-size:11px;color:#778789}
label{display:block;margin-bottom:10px;font-size:13px;font-weight:650}
input{width:100%;height:58px;border:1px solid #b9c7c5;border-radius:6px;background:#fff;text-align:center;font:600 25px ui-monospace,SFMono-Regular,Consolas,monospace;color:#202b32;outline:none;letter-spacing:3px}
input:focus{border-color:#217b70;box-shadow:0 0 0 3px #217b7020}input[aria-invalid="true"]{border-color:#ba4d46}
input::placeholder{font:400 14px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#879598;letter-spacing:0}
.field-hint{color:#63777a;font-size:12px;margin:8px 0 20px;min-height:18px}
button{width:100%;min-height:43px;font-family:inherit;font-weight:650;font-size:14px;cursor:pointer;border:0;border-radius:6px;background:#226d64;color:#fff}
button:hover:not(:disabled){background:#18574f}button:disabled{opacity:.55;cursor:wait}
button:focus-visible,a:focus-visible{outline:3px solid #9dd0c7;outline-offset:2px}
.status{font-size:13px;color:#445f5b;min-height:20px;margin-top:15px}.status.error{color:#ad423a}
.outcome{border-top:1px solid #e3e8e8;padding-top:18px;margin-top:5px;text-align:center}
.outcome[hidden]{display:none}.outcome h2{font-size:16px;margin:0 0 8px}.outcome p{font-size:13px;color:#5c6e70;line-height:1.5;margin:7px 0 18px}
.outcome button{max-width:220px}.outcome img{width:240px;height:240px;object-fit:contain;display:block;margin:10px auto}
.outcome a{display:inline-block;margin:0 0 8px;color:#176c65;font-size:13px}.outcome .subtle{font-size:12px;color:#697d7e;margin:8px 0}
.result output{display:block;font:700 30px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:3px;color:#174e49;margin:13px 0 18px}
.result #copy-status{min-height:18px;margin-bottom:0}
@media(max-width:380px){.panel{padding:22px 18px}h1{font-size:22px}}