:root{font-family:system-ui,sans-serif;color:#152b35;background:#f1f5f7}main{max-width:900px;margin:3rem auto;padding:0 1rem}section{background:white;padding:1.5rem;margin:1rem 0;border:1px solid #cad8df;border-radius:10px}h1{font-size:clamp(1.8rem,5vw,2.8rem)}button{padding:.8rem 1rem;margin:.4rem .4rem .4rem 0;background:#154d60;color:white;border:0;border-radius:5px;cursor:pointer}button:disabled{opacity:.5}button:focus-visible,textarea:focus-visible{outline:3px solid #c57900;outline-offset:3px}textarea{display:block;box-sizing:border-box;width:100%;min-height:28rem;font:14px/1.5 monospace;margin:1rem 0;padding:1rem}pre{white-space:pre-wrap;overflow-wrap:anywhere}#stop{background:#8f2020}[hidden]{display:none}