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ease,color .16s ease;will-change:transform}.tile-2048-piece.is-new{animation:tile-pop .14s ease-out}.tile-2048-piece.is-merged{animation:tile-merge .18s ease-out}.tile-2048-piece.tile-4{background:#ede0c8}.tile-2048-piece.tile-8{background:#f2b179;color:#f9f6f2}.tile-2048-piece.tile-16{background:#f59563;color:#f9f6f2}.tile-2048-piece.tile-32{background:#f67c5f;color:#f9f6f2}.tile-2048-piece.tile-64{background:#f65e3b;color:#f9f6f2}.tile-2048-piece.tile-128,.tile-2048-piece.tile-256,.tile-2048-piece.tile-512{background:#edcf72;color:#f9f6f2;font-size:1.65rem}.tile-2048-piece.tile-1024,.tile-2048-piece.tile-2048{background:#edc22e;color:#f9f6f2;font-size:1.35rem}@keyframes tile-pop{0%{opacity:0;scale:.76}to{opacity:1;scale:1}}@keyframes tile-merge{0%{scale:1}55%{scale:1.12}to{scale:1}}@keyframes sudoku-error{0%,to{transform:translate(0)}35%{transform:translate(-2px)}70%{transform:translate(2px)}}@keyframes 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rgba(190,242,100,.9);border-radius:999px;background:#10251fdb;color:#bef264;font-size:2.8rem;font-weight:950;line-height:1;transform:translate(-50%,-50%);box-shadow:0 14px 34px #10251f4d;pointer-events:none}.sudoku-board{grid-template-columns:repeat(9,1fr);gap:2px;padding:6px;background:var(--ink)}.sudoku-board button{border:0;background:#fff;color:var(--ink);font-size:clamp(.95rem,2.4vw,1.45rem)}.sudoku-notes{display:grid;grid-template-columns:repeat(3,1fr);width:80%;gap:1px;color:var(--muted);font-size:clamp(.46rem,1.2vw,.72rem);font-weight:800;line-height:1;letter-spacing:0}.sudoku-board button.locked{background:#dbeafe}.sudoku-board button.related{background:#eef6ff}.sudoku-board button.match{background:#dcfce7;color:#166534}.sudoku-board button.active{outline:3px solid var(--accent)}.sudoku-board button.conflict{background:#ffe4e6;color:var(--rose);animation:sudoku-error .18s ease-in-out 2}.number-row 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