:root{--bg-page:#ffffff;--text-dark:#333333;--border-color:#dddddd;--color-stage1:#4466aa;--color-stage2:#335599}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-page);color:var(--text-dark);font-family:Arial,AppleGothic,sans-serif;min-height:100vh;display:flex;flex-direction:column;align-items:center;overflow-x:hidden}.game-container{width:100%;max-width:800px;margin:0 auto;padding-top:10px;text-align:center;position:relative;z-index:2}.topInfo{float:left;height:50px;width:100%;position:relative;background-color:#eaeaea;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 15px;box-sizing:border-box}#time{font-size:30px;font-weight:700;font-family:Arial,AppleGothic,sans-serif;line-height:50px;color:#55f}.level{font-size:25px;font-family:Arial,AppleGothic,sans-serif;line-height:50px;color:#ccc;font-weight:400}#score{color:#333;font-weight:700}.lineWrapB{margin:20px auto 30px;width:95%;max-width:370px;border-bottom:1px solid #eee;padding-bottom:20px;text-align:left;display:flex;justify-content:space-between;align-items:center}.description-text h5{color:#46a;font-weight:700;font-size:25px;margin-bottom:5px;display:flex;align-items:center;gap:8px}.description-text h5 img{height:20px}.description-text p{color:#999;font-size:12px;line-height:22px}.resetBtn{line-height:20px;font-size:13px;display:inline-block;text-decoration:none;color:#444;background-color:#fff;padding:5px 12px;border:1px solid #aaa;border-radius:5px;cursor:pointer;font-family:Arial,sans-serif;transition:background-color .2s}.resetBtn:hover{background-color:#f5f5f5}.grid{margin:auto;width:95%;max-width:370px;height:370px;overflow:hidden;display:block}.grid-cell{float:left;margin:.5%;width:19%;height:19%;background-color:var(--color-stage1);padding:0;text-align:center;color:#fff;font-weight:700;line-height:70px;font-size:30px;font-family:Arial,sans-serif;position:relative;overflow:visible;cursor:pointer;user-select:none;box-sizing:border-box;transition:opacity .1s}.grid-cell:not(.empty):active{opacity:.8}.grid-cell.second{background-color:var(--color-stage2)}.grid-cell.click-error{animation:.3s ease-in-out shake;background-color:#f33!important}.grid-cell.empty{opacity:0;pointer-events:none;cursor:default;background-color:transparent!important}.start-overlay{position:absolute;left:50%;top:150px;transform:translateX(-50%);width:95%;max-width:370px;height:370px;background:rgba(255,255,255,.95);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:10;border:1px solid #eee;box-sizing:border-box;transition:opacity .3s,visibility .3s}.start-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}.start-icon{font-size:3rem;margin-bottom:15px}.start-btn{background:#46a;border:none;color:#fff;padding:12px 28px;border-radius:5px;font-size:1.1rem;font-weight:700;cursor:pointer;box-shadow:0 2px 5px rgba(0,0,0,.1);transition:background-color .2s}.start-btn:hover{background:#359}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:10060;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}.modal-overlay.active{opacity:1;visibility:visible}.modal-card{background:#fafafa;border-radius:5px;padding:30px 24px;width:min(100%,380px);text-align:center;box-shadow:0 5px 15px rgba(0,0,0,.3);border:1px solid #ccc}.modal-card h2{font-size:1.6rem;font-weight:700;margin-bottom:15px;color:#46a}.modal-card p{color:#555;font-size:.95rem;line-height:1.5;margin-bottom:15px}.modal-card input[type=text]{width:90%;padding:10px;background:#fff;border:1px solid #ccc;border-radius:4px;color:#333;font-size:1rem;text-align:center;margin-bottom:18px;outline:0}.modal-card input[type=text]:focus{border-color:#46a}.modal-buttons{display:flex;gap:12px;justify-content:center}.modal-btn{padding:8px 18px;border-radius:4px;font-weight:700;font-size:.85rem;cursor:pointer;transition:.15s;border:1px solid #ccc}.modal-btn.primary{background:#46a;color:#fff;border-color:#46a}.modal-btn.primary:hover{background:#359}.modal-btn.secondary{background:#f0f0f0;color:#555}.modal-btn.secondary:hover{background:#e0e0e0}.seo-description{width:min(95%,800px);margin:20px auto 60px;padding:20px;color:#777;font-size:.85rem;line-height:1.6;border-top:1px solid #eee}.seo-description h2{color:#333;font-size:1.1rem;margin-bottom:10px;font-weight:700}.seo-description p{margin-bottom:8px}@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-4px)}40%,80%{transform:translateX(4px)}}@media (max-width:400px){.grid{height:calc(95vw * 1)}.grid-cell{line-height:calc(95vw * .19);font-size:24px}}