:root{font:17px/1.6 system-ui,sans-serif;color:#e7edf5;background:#101820;color-scheme:dark}body{margin:0;padding:30px 20px}main{max-width:620px;margin:5vh auto}h1{font-size:clamp(2.2rem,7vw,3.5rem);line-height:1.1;letter-spacing:-.04em}h2{font-size:1.25rem}p{color:#b9c9d7}.tag{font-size:.75rem;letter-spacing:.2em;color:#69d8bd}section{background:#192631;padding:22px;border-radius:16px;margin:20px 0}button{font:inherit;font-weight:650;border:0;border-radius:9px;background:#69d8bd;color:#10221d;padding:12px 20px;cursor:pointer}button:disabled{opacity:.5}button:focus-visible{outline:3px solid white;outline-offset:4px}aside{color:#b9c9d7;font-size:.85rem;border-left:2px solid #69d8bd;padding-left:15px}#message{white-space:pre-wrap;color:#fff}