:root{color-scheme:dark;font:14px system-ui,sans-serif;background:#0a141b;color:#c9dedb}*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:flex;flex-direction:column}header{display:flex;align-items:center;gap:12px;padding:16px 24px;border-bottom:1px solid #29424a;flex-wrap:wrap}header a{color:#89b6b0;text-decoration:none;font-size:11px;letter-spacing:1px}h1{font-size:20px;font-weight:500;margin:0 15px 0 0}#status{margin-left:auto;font:12px monospace;color:#9db7bd}button{font:inherit;border:1px solid #35525b;border-radius:6px;background:#132630;color:#c9dedb;padding:9px 12px;cursor:pointer}button:hover{border-color:#7bd5c4}button.active{background:#28544f;border-color:#86d6c6}main{display:flex;flex:1;min-height:350px;padding:20px;gap:20px}.stage{position:relative;min-width:0;flex:1;display:flex;align-items:center;justify-content:center}canvas{width:min(100%,106vh);height:auto;aspect-ratio:36/22;image-rendering:pixelated;touch-action:none;background:#071018;border:1px solid #26434d;border-radius:8px}.caption{position:absolute;bottom:7px;padding:5px 8px;background:#09131ddd;color:#83a5ae;font-size:11px;pointer-events:none}aside{width:285px;padding:12px 16px;background:#11202a;border:1px solid #2f4b55;border-radius:8px;max-height:65vh;overflow:auto}aside[hidden]{display:none}h2{font-size:13px;font-weight:500;letter-spacing:1px;color:#87c4b8;margin:12px 0}pre{font:11px/1.7 monospace;white-space:pre-wrap;word-break:break-word}footer{padding:0 24px 18px}nav{display:flex;gap:6px;flex-wrap:wrap}nav button{font-size:12px;padding:7px 9px}footer p{margin:12px 0 7px;color:#b1c9c8}small{color:#78939b;font-size:11px}@media(max-width:800px){header{padding:12px;gap:6px}header a{display:none}h1{font-size:16px}main{padding:10px;flex-wrap:wrap}aside{width:100%}footer{padding:0 12px 12px}.caption{display:none}#status{font-size:10px}}

select,input{font:inherit;color:#c9dedb;background:#132630;border:1px solid #35525b;border-radius:6px;padding:7px}header label{font-size:12px}#reactor-output{width:70px;margin:8px 0}button:disabled{opacity:.45;cursor:default}#reactor-controls button{display:block}