.schulte-game{max-width:800px;margin:0 auto}.game-header{text-align:center;margin-bottom:2rem}.game-header__title{color:#2d3748;margin-bottom:.5rem;font-size:2.5rem}.subtitle{color:#718096;font-size:1.1rem}.control-panel{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem;display:flex}.size-selector{align-items:center;gap:.75rem;display:flex}.size-selector label{color:#4a5568;font-weight:600}.size-selector select{cursor:pointer;background:#fff;border:2px solid #e2e8f0;border-radius:8px;padding:.5rem 1rem;font-size:1rem}.restart-button{color:#fff;cursor:pointer;background:#4299e1;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;transition:background .2s}.restart-button:hover{background:#3182ce}.info-panel{background:#f7fafc;border-radius:12px;flex-wrap:wrap;justify-content:space-around;gap:1rem;margin-bottom:1.5rem;padding:1rem;display:flex}.info-item{flex-direction:column;align-items:center;gap:.25rem;display:flex}.info-label{color:#718096;font-size:.9rem}.info-value{color:#2d3748;font-size:1.5rem;font-weight:700}.current-number{color:#4299e1}.best-time{color:#d69e2e}.game-board{margin-bottom:2rem}.grid{aspect-ratio:1;gap:.5rem;max-width:600px;margin:0 auto;display:grid}.cell{aspect-ratio:1;color:#2d3748;cursor:pointer;background:#fff;border:2px solid #e2e8f0;border-radius:12px;justify-content:center;align-items:center;font-size:2rem;font-weight:700;transition:all .2s;display:flex}.cell:hover:not(:disabled){background:#ebf8ff;border-color:#4299e1;transform:scale(1.05)}.cell-found{color:#22543d;cursor:default;background:#c6f6d5;border-color:#48bb78}.cell-error{color:#742a2a;background:#fed7d7;border-color:#f56565;animation:.5s shake}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.completion-message{color:#fff;text-align:center;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:16px;margin-bottom:2rem;padding:2rem;animation:.5s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.completion-message h2{margin-bottom:1rem;font-size:2rem}.completion-message p{margin-bottom:.5rem;font-size:1.2rem}.new-record{margin-top:1rem;font-size:1.5rem;font-weight:700}.play-again-button{color:#667eea;cursor:pointer;background:#fff;border:none;border-radius:8px;margin-top:1.5rem;padding:.75rem 2rem;font-size:1.1rem;font-weight:600;transition:transform .2s}.play-again-button:hover{transform:scale(1.05)}.instructions{background:#f7fafc;border-radius:12px;padding:1.5rem}.instructions h3{color:#2d3748;margin-bottom:1rem}.instructions ol{margin-bottom:1rem;margin-left:1.5rem}.instructions li{color:#4a5568;margin-bottom:.5rem}.tip{color:#2c5282;background:#ebf8ff;border-left:4px solid #4299e1;border-radius:8px;padding:1rem}@media (width<=768px){.game-header h1{font-size:2rem}.control-panel,.size-selector{flex-direction:column;align-items:stretch}.grid{gap:.25rem}.cell{border-radius:8px;font-size:1.5rem}.info-panel{flex-direction:column}}@media (width<=480px){.cell{font-size:1.2rem}}.cell{touch-action:manipulation;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;cursor:pointer;justify-content:center;align-items:center;font-size:1.5rem;font-weight:700;display:flex}.game-board{touch-action:none}