.sudoku-workspace{display:grid;grid-template-columns:minmax(280px,1fr) 320px;border:1px solid #d5d9d5;background:#fffdf6;box-shadow:0 7px 18px #344c6310}.sudoku-sheet{border-right:1px solid #d5d9d5;padding:26px 38px;background-image:linear-gradient(#c3d4df30 1px,transparent 1px),linear-gradient(90deg,#c3d4df30 1px,transparent 1px);background-size:24px 24px}.sudoku-board{display:grid;grid-template-columns:repeat(9,1fr);max-width:414px;aspect-ratio:1;margin:0 auto;border:2px solid var(--ink);background:#fffefa;position:relative}.s-cell{aspect-ratio:1;min-width:0;padding:0;border:0;border-right:1px solid #9bb0c480;border-bottom:1px solid #9bb0c480;background:transparent;color:#3273a7;font-size:clamp(19px,2.2vw,27px);font-weight:400;position:relative;touch-action:manipulation}.s-cell:nth-child(3n){border-right:2px solid var(--ink)}.s-cell:nth-child(9n){border-right:0}.s-cell:nth-child(n+19):nth-child(-n+27),.s-cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--ink)}.s-cell:nth-child(n+73){border-bottom:0}.s-cell.given{font-weight:700;color:var(--ink)}.s-cell.peer{background:#edf2f4}.s-cell.same{background:#dce8ec}.s-cell.selected{background:#c7dfeb;box-shadow:inset 0 0 0 2px #397aa5;z-index:1}.s-cell.error{color:#bf3e32;background:#f9e0da}.s-cell:disabled{cursor:default;opacity:1}.s-notes{display:grid;grid-template-columns:repeat(3,1fr);position:absolute;inset:3px;font-size:9px;line-height:1;align-items:center;color:#6c8598;font-weight:400}.number-pad{display:grid;grid-template-columns:repeat(9,1fr);gap:5px;max-width:414px;margin:18px auto 0}.number-pad button{min-width:0;padding:8px 0;border:1px solid #c6d1d7;border-radius:4px;background:#fffdf7;color:var(--ink);font-size:21px;font-weight:600;touch-action:manipulation}.number-pad button:hover{background:#e3edf0}.number-pad button.done{color:#91a5af;background:#f0f3ed}.number-pad small{display:block;font-size:8px;color:#91a0a9;font-weight:400;margin-top:5px}.tools{display:grid;grid-template-columns:repeat(4,1fr);max-width:414px;margin:15px auto 0;gap:6px}.tools button{border:0;border-radius:4px;background:transparent;color:#536c83;padding:9px 2px;font-size:10px;min-height:53px}.tools button b{display:block;font-size:21px;margin-bottom:6px;font-weight:400}.tools button.active{background:#dce8ec;color:var(--ink)}.tools button:disabled{opacity:.35;cursor:default}.sudoku-aside{padding:29px 26px;display:flex;flex-direction:column;gap:18px}.sudoku-aside h2{font-size:25px;letter-spacing:-.7px;margin:0;line-height:1.25}.sudoku-aside p{font-size:12px;line-height:1.8;color:#7b858c;margin:0}.level-picker{display:grid;grid-template-columns:1fr 1fr;gap:8px}.level-picker label{border:1px solid #c8d2d7;border-radius:4px;padding:12px 9px;font-size:11px;cursor:pointer;display:flex;align-items:center;gap:5px;min-height:44px}.level-picker label:has(input:checked){border-color:var(--ink);background:#e5edef}.level-picker input{accent-color:var(--ink);margin:0}.level-description{min-height:44px}.sudoku-status{max-width:414px;margin:15px auto 0;min-height:28px;font-size:11px;line-height:1.6;color:#6b8090}.sudoku-settings{border-top:1px dashed #ccd5d7;padding-top:17px;display:flex;flex-direction:column;gap:14px}.sudoku-settings label{font-size:11px;display:flex;gap:9px;align-items:center;cursor:pointer;color:#5e7587}.sudoku-settings input{accent-color:var(--ink);width:16px;height:16px;margin:0}.sudoku-aside .btn{width:100%}.s-timer{font-variant-numeric:tabular-nums;letter-spacing:1px;font-size:12px;color:#7f929c}.s-progress{height:4px;background:#e6eae6;border-radius:5px;overflow:hidden}.s-progress span{display:block;height:100%;background:#548b75;transition:width .2s}.sudoku-complete{padding:15px 0;color:#548b75!important}.sudoku-complete strong{font-size:24px;display:block;color:var(--ink);margin-bottom:8px}.pause-board{max-width:414px;aspect-ratio:1;margin:auto;border:2px solid var(--ink);display:flex;align-items:center;justify-content:center;flex-direction:column;background:#edf1ee;text-align:center;padding:30px;gap:15px}.pause-board p{font-size:12px;line-height:1.8;color:#6f8190}.pause-board h2{font-size:26px}.sudoku-menu .sudoku-board{opacity:.65}.sudoku-menu .s-cell{cursor:default}#newDialog{width:min(430px,calc(100vw - 28px))}#newDialog .level-picker{margin:20px 0}#newDialog p{font-size:12px}#newDialog>.btn{width:100%}.menu-note{padding:16px 0 0;border-top:1px dashed #ccd5d7}.save-warning{color:var(--red)!important;font-size:11px!important}.sudoku-top-actions{display:flex;align-items:center;gap:12px}.sudoku-top-actions button{font-size:11px;padding:5px}.sudoku-win .sudoku-board{border-color:#548b75}.sudoku-win .s-cell{color:#548b75}.sudoku-win .s-cell.given{color:var(--ink)}@media(max-width:760px){.sudoku-workspace{grid-template-columns:1fr}.sudoku-sheet{padding:18px 15px 14px;border-right:0;border-bottom:1px solid #d5d9d5}.sudoku-aside{padding:22px;gap:15px}.s-cell{font-size:23px}.number-pad{gap:4px;margin-top:16px}.number-pad button{font-size:22px;padding:10px 0}.number-pad small{font-size:8px}.s-notes{font-size:9px;inset:2px}.tools{margin-top:9px}.sudoku-aside h2{font-size:21px}.sudoku-settings{display:grid;grid-template-columns:1fr 1fr;gap:12px}.sudoku-aside .bottom{display:flex;gap:8px}.sudoku-menu .sudoku-sheet{display:none}.sudoku-menu .sudoku-aside{padding:28px 22px}.sudoku-menu .level-picker label{padding:16px 12px}.sudoku-status{min-height:20px}.sudoku-aside .tip{font-size:11px}.sudoku-top-actions{gap:4px}}@media(max-width:360px){.s-cell{font-size:20px}.s-notes{font-size:7px}.sudoku-settings{grid-template-columns:1fr}}