body{font:17px/1.5 system-ui,sans-serif;color:#172033;background:#f5f7fa;margin:0}main{max-width:620px;margin:7vh auto;padding:32px}label{display:block;font-weight:600;margin-top:18px}input,button{font:inherit;padding:10px 14px;border-radius:6px}input{box-sizing:border-box;width:100%;border:1px solid #aab5c4}button{margin-top:22px;background:#173b67;color:white;border:0;cursor:pointer}button:disabled{opacity:.6}a{color:#173b67}nav{margin-top:26px}small{display:block;color:#526174}#message{white-space:pre-line}output{display:block;margin-top:24px;background:#e5edf5;padding:16px;border-radius:8px}