*{box-sizing:border-box}body{margin:0;background:#edf3f3;color:#163f46;font:17px/1.7 system-ui,sans-serif}main{max-width:720px;margin:0 auto;padding:24px}h1{font-size:1.8rem}h2{font-size:1.3rem}nav{display:grid;gap:10px;margin:24px 0}a{color:#116b65}form{background:white;border:1px solid #cadada;border-radius:12px;padding:20px}label{display:block;margin-top:18px}input{font:inherit;width:100%;padding:12px;border:1px solid #8aa6aa;border-radius:6px}input[type=checkbox]{width:auto;margin:0 12px 0 0}.ack{display:flex;align-items:flex-start}button{width:100%;padding:15px;margin-top:20px;border:0;border-radius:8px;background:#147b72;color:white;font:inherit;font-weight:700}.warning,[role=alert]{color:#962f21}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/2 monospace;background:white;padding:15px}footer{font-size:.9rem;margin-top:28px}input:focus,button:focus,a:focus{outline:3px solid #3d79d0;outline-offset:3px}