:root{color-scheme:dark;font:17px/1.55 system-ui,sans-serif;background:#181c1c;color:#e1e8e3}body{margin:0}main{max-width:760px;margin:6vh auto;padding:24px}h1{font-size:clamp(2.3rem,7vw,4rem);line-height:1.1;letter-spacing:-.04em}p{color:#bdc9c1}form{display:grid;gap:12px;margin:32px 0}input,button{font:inherit;border-radius:7px;padding:12px 16px;border:1px solid #58675d}input{background:#202824;color:inherit}button{background:#b9d5a9;color:#19231b;cursor:pointer}button:disabled{opacity:.5;cursor:wait}article{border-top:1px solid #58675d;padding:24px 0;margin-top:24px}.checksum{overflow-wrap:anywhere;font-family:monospace;font-size:14px}h3{font-size:1.05rem;margin-top:28px}[hidden]{display:none!important}

button:disabled { opacity: .6; cursor: wait; }