:root{--bg:#f6f7f3;--paper:#fff;--ink:#24372f;--muted:#66756c;--line:#e0e7dd;--green:#176b59;--lime:#d5f59b;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;--sans:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 var(--sans)}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a{color:var(--green);text-underline-offset:4px}button{color:inherit;cursor:pointer;border:1px solid var(--line);background:var(--paper);border-radius:7px;padding:10px 15px;min-height:44px}button:hover{border-color:#8dad9a;background:#f2f7ed}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:4px}[hidden]{display:none!important}header{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:17px 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#experiment{scroll-margin-top:20px}