:root{--ink:#273f38;--paper:#f5f0e4;--muted:#6d7567;--gold:#a57534;--line:#d9d3c2;--green:#426b53;--card:#fcf9f0;--s0:#b37c42;--s1:#617e68;--s2:#7b789d;--s3:#b27170}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}header,main{max-width:1220px;margin:auto}header{padding:28px 32px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font:29px Georgia,serif;color:var(--ink);text-decoration:none}.brand i{color:var(--gold)}.brand span{display:block;font:9px/2 sans-serif;letter-spacing:3px}.header-actions{display:flex;gap:8px}button,select{font:inherit;color:inherit;border:1px solid #cdcdbb;border-radius:6px;background:transparent;padding:9px 13px;cursor:pointer;min-height:42px}button:hover{background:#e7ebde;border-color:#899d80}button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid 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.hero-moth{width:260px;mix-blend-mode:multiply;border-radius:50%;max-width:30%}.toolbar{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:18px 0;gap:15px}.tabs{display:flex;gap:6px}.tabs button[aria-pressed=true]{background:var(--ink);color:white}.workspace{grid-template-columns:minmax(0,2fr) minmax(265px,1fr)}.bench{padding:22px}.canvas-wrap{border:1px solid #c9bea4;border-radius:6px;overflow:hidden;background:#f5ecd7;position:relative}canvas{width:100%;height:auto;display:block;touch-action:none}.board-caption{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);gap:12px;margin-top:10px}.flighttools{display:flex;gap:10px;justify-content:space-between;margin-top:22px}#status{font:italic 15px/1.5 Georgia,serif;min-height:48px;margin-bottom:0}.sectionhead select{max-width:170px;font-size:12px;background:var(--paper)}#question,.notebook p{font-size:13px;color:var(--muted);line-height:1.65}#answers{display:grid;gap:8px;margin-top:22px}.answer{display:flex;align-items:center;gap:13px;text-align:left;width:100%;background:#f8f5e9;padding:6px 12px;min-height:52px}.answer img{height:43px;width:43px;object-fit:contain;mix-blend-mode:multiply}.answer .key{margin-left:auto;font:10px monospace;color:var(--muted)}.answer.correct{outline:2px solid var(--green);background:#ecf3dc}.answer.wrong{outline:2px solid #ad6656}.answer:disabled{opacity:.8}#result{margin-top:20px;padding-top:15px;border-top:1px solid #c6d1b9}#free-controls label{display:block;margin-top:13px;font-size:12px}#free-controls select{margin-left:10px;font-size:12px;padding:6px}input[type=range]{width:100%;accent-color:var(--green);min-height:28px;cursor:pointer}output{float:right;font-variant-numeric:tabular-nums}#reset{margin-top:12px}#live-result{font:italic 14px/1.6 Georgia,serif;margin-top:20px}.fieldnotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:35px 0 28px}.fieldnotes span{font-size:10px;letter-spacing:1px;color:var(--gold)}.fieldnotes p{font:18px/1.5 Georgia,serif}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:900px){.workspace{grid-template-columns:1fr}.notebook h2 br{display:none}.notebook h2{font-size:27px}#answers{grid-template-columns:repeat(2,1fr)}#free-controls{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}#free-controls>h2,#free-controls>.eyebrow,#free-controls>p,#live-result{grid-column:1/-1}}@media(max-width:520px){.bench{padding:14px 10px}.sectionhead{gap:7px}.sectionhead h2{font-size:22px}.sectionhead select{max-width:135px;font-size:11px;padding:5px}.hero-moth{width:100px}.toolbar .tabs button{font-size:12px;padding:8px}.fieldnotes{grid-template-columns:1fr;gap:5px;padding:25px 0}.fieldnotes p{font-size:16px;margin:5px 0 15px}.board-caption{font-size:9px}.flighttools button{font-size:12px}.notebook{padding:20px}.answer{gap:8px;font-size:13px}.answer img{height:35px;width:35px}.workspace{gap:15px}}

.discovery-seal{width:55px;height:55px;float:right;mix-blend-mode:multiply;border-radius:50%}