.motion-board{position:relative;isolation:isolate}.motion-board.code-board{gap:0}.motion-board .grid-cell{border:2px solid #d6e2d5}.motion-sprite{position:absolute;inset:0 auto auto 0;width:var(--cell);height:var(--cell);pointer-events:none;z-index:2;transition:transform .6s ease-in-out;display:grid;place-items:center}.motion-sprite svg{width:78%;height:78%}.motion-board.size-2{--cell:50%}.motion-board.size-3{--cell:33.333333%}.motion-board.size-4{--cell:25%}.motion-board.size-5{--cell:20%}.motion-board.size-6{--cell:16.666667%}.motion-sprite.x-0{--x:0%}.motion-sprite.x-1{--x:100%}.motion-sprite.x-2{--x:200%}.motion-sprite.x-3{--x:300%}.motion-sprite.x-4{--x:400%}.motion-sprite.x-5{--x:500%}.motion-sprite.y-0{--y:0%}.motion-sprite.y-1{--y:100%}.motion-sprite.y-2{--y:200%}.motion-sprite.y-3{--y:300%}.motion-sprite.y-4{--y:400%}.motion-sprite.y-5{--y:500%}.motion-sprite{transform:translate(var(--x),var(--y))}.executing{outline:3px solid #df9736!important;background:#fff0ca!important;box-shadow:0 0 0 5px #df973622}.motion-blocked{outline:3px solid #b8644d}.motion-controls{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.motion-controls label{display:flex;align-items:center;gap:8px}.motion-status{min-height:2em;color:#12655b;font-weight:600}.child-footer{flex-wrap:wrap;gap:8px}.child-footer>span{flex-basis:100%}.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0}.memory-card{min-height:125px;border:2px solid #d4e2dd;background:#e9e2f3;color:#624b84;border-radius:18px;font-size:32px;display:grid;place-items:center;padding:12px}.memory-card svg{width:68px;height:68px}.memory-card.open{background:#fff}.memory-card.matched{background:#e2f3e8;border-color:#78a48b}.memory-card span{font-size:15px}.sort-bank{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.sort-item{background:#fff;border:2px solid #d4e2dd;border-radius:16px;padding:12px;min-width:100px}.sort-item svg{width:64px;height:64px;display:block;margin:auto}.sort-item.selected{border-color:#12655b;background:#e2f3e8}.sort-bins{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.sort-bin{background:#f3f2e8;border:2px dashed #a8bbaa;border-radius:20px;padding:20px;min-height:110px;color:#184b46}.sort-result{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.game-controls{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}.game-counter{color:#12655b;font-weight:700}.time-panel{padding:12px 18px;background:#f0eaf7;border-radius:16px;display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:18px 0}.time-display{font-size:22px;font-variant-numeric:tabular-nums;min-width:80px}.time-notice{flex-basis:100%;margin:0;color:#665778}.explore-banner{background:#e6f0f5;border:1px solid #cedfe6;padding:24px;border-radius:22px;margin-bottom:24px}.explore-banner .row{flex-wrap:wrap}.source-list{font-size:14px;line-height:1.8}.source-list a{color:#12655b;text-decoration:underline}.subject-badge.body,.subject-badge.health{background:#f8e2db;color:#9a5848}.subject-badge.space{background:#e9e1f4;color:#735695}.subject-badge.geo,.subject-badge.science{background:#e0eddd;color:#55744b}.subject-badge.brain{background:#fff0ce;color:#9a7a34}@media(max-width:600px){.game-grid{grid-template-columns:repeat(3,1fr);gap:8px}.memory-card{min-height:100px}.sort-bins{grid-template-columns:1fr}.motion-controls .btn{padding:10px;font-size:14px}.time-panel{gap:7px}}@media(prefers-reduced-motion:reduce){.motion-sprite{transition:none}}@media print{.time-panel,.motion-controls{display:none}}