:root{color-scheme:light;--paper:#f5f1e9;--ink:#292824;--muted:#6e6a60;--line:#d8d1c5;--wood:#b77b39;--gold:#ecd9b6;--red:#a3372d}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,a{touch-action:manipulation}button,a,input{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--red)}button{min-height:46px;border:1px solid var(--line);background:transparent;color:inherit;border-radius:6px;padding:10px 17px;font:600 14px system-ui;cursor:pointer}button:hover:not(:disabled){background:#e9e1d4}button:disabled{opacity:.45;cursor:not-allowed}header{min-height:82px;display:flex;align-items:center;justify-content:space-between;padding:15px 5%;background:#242321;color:#f5f1e9;gap:24px}.brand{color:inherit;text-decoration:none;font-weight:850;letter-spacing:2px;font-size:18px}.brand 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var(--line);padding-top:16px;margin-top:20px;min-height:40px}.take-section{padding:32px 0 20px}.take-section>p{font-size:13px;color:var(--muted)}.practice-buttons{display:flex;gap:8px;flex-wrap:wrap}.muted{font-size:12px;color:var(--muted)}.pads{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.pads button{display:flex;justify-content:space-between;align-items:center;min-height:72px;background:#e7d8c0;border-color:#c7b493;font-size:18px;padding:16px 22px}.pads button:active{background:#c99556}kbd{font:12px system-ui;border:1px solid #b1a18b;border-radius:4px;padding:2px 8px;background:#f5eee1}details{font-size:12px;border-top:1px solid var(--line);margin-top:24px;padding:12px 0}summary{cursor:pointer;min-height:44px;padding:10px 0}details label{display:block;margin-top:14px}.result{padding:22px;background:#e8dfce;border-radius:8px;margin-top:16px}.result h4{margin:0;font-size:19px}.result 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