*{box-sizing:border-box}:root{color:#17211d;background:#f7f4ed;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}body{margin:0;min-width:320px}button,input{font:inherit}.app{display:grid;grid-template-columns:minmax(280px,360px) minmax(0,1fr);min-height:100vh;position:relative}.sidebar{align-content:start;background:#e4eadf;border-right:1px solid #c9d3c4;display:grid;gap:16px;padding:32px}.modeGrid{display:grid;gap:14px}.modeItem{display:grid;gap:6px}.modeButton,.startButton,.helpButton,.modalCloseButton,.retryButtons button,.topModeButtons button,.touchKeypad button,.answerPanel button{align-items:center;border:1px solid #8ea097;border-radius:8px;cursor:pointer;display:flex;justify-content:space-between}.modeButton{background:#f7faf2;color:#1f2e29;min-height:44px;padding:10px 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