._header_1a2tj_1{height:64px}._toolbar_1a2tj_5{display:flex;align-items:center;justify-content:space-between;height:100%;padding:0 16px}._title_1a2tj_13{font-weight:600;letter-spacing:-.5px}._center_1a2tj_18{position:absolute;left:50%;transform:translate(-50%)}@media(max-width:767px){._center_1a2tj_18{position:static;transform:none;margin:0 auto}}._actions_1a2tj_31{display:flex;align-items:center;gap:4px}._layout_x25pc_1{display:flex;flex-direction:column;min-height:100vh}._main_x25pc_7{display:flex;flex-wrap:wrap;flex:1;min-height:calc(100vh - 64px)}._leftPanel_x25pc_14{flex:0 0 33.333%;max-width:33.333%;padding:16px;overflow-y:auto;max-height:calc(100vh - 64px);background-color:var(--mui-palette-background-paper, #ffffff);border-right:1px solid var(--mui-palette-divider, #e0e0e0)}._leftPanel_x25pc_14::-webkit-scrollbar{width:8px;height:8px}._leftPanel_x25pc_14::-webkit-scrollbar-track{background:var(--mui-palette-action-hover, #f5f5f5);border-radius:4px}._leftPanel_x25pc_14::-webkit-scrollbar-thumb{background:var(--mui-palette-action-disabled, #bdbdbd);border-radius:4px}._leftPanel_x25pc_14::-webkit-scrollbar-thumb:hover{background:var(--mui-palette-action-active, #9e9e9e)}@media(max-width:767px){._leftPanel_x25pc_14{flex:0 0 100%;max-width:100%;order:2;max-height:none;border-right:none;border-top:1px solid var(--mui-palette-divider, #e0e0e0)}}._rightPanel_x25pc_49{flex:0 0 66.667%;max-width:66.667%;padding:24px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:24px;background-color:var(--mui-palette-background-default, #f5f5f5)}@media(max-width:767px){._rightPanel_x25pc_49{flex:0 0 100%;max-width:100%;order:1;padding:16px}}._cell_v69yk_1{display:flex;align-items:center;justify-content:center;width:var(--sudoku-cell-size, 50px);height:var(--sudoku-cell-size, 50px);background-color:var(--sudoku-cell-bg, #ffffff);border:1px solid var(--sudoku-cell-border, #bdbdbd);cursor:pointer;user-select:none;position:relative;transition-property:background-color,box-shadow;transition-property:background-color,box-shadow,transform;transition-duration:.15s;transition-timing-function:ease}._cell_v69yk_1:hover:not(._given_v69yk_19){background-color:var(--mui-palette-action-hover, #f5f5f5)}._cell_v69yk_1:focus-visible{outline:2px solid var(--mui-palette-primary-main, #1976d2);outline-offset:2px;z-index:1}._selected_v69yk_28{background-color:var(--sudoku-selected-bg, #e3f2fd)!important;box-shadow:inset 0 0 0 2px var(--mui-palette-primary-main, #1976d2)}._related_v69yk_33{background-color:var(--mui-palette-action-selected, #f0f0f0)}._highlighted_v69yk_37{background-color:var(--sudoku-highlight-bg, #fff9c4)!important}._given_v69yk_19{cursor:default}._given_v69yk_19 ._value_v69yk_44{font-weight:700;color:var(--sudoku-given-text, #000000)}._conflict_v69yk_49{background-color:var(--sudoku-conflict-bg, #ffcdd2)!important;animation:_shake_v69yk_1 .3s ease}._dragOver_v69yk_54{background-color:var(--mui-palette-primary-light, #64b5f6)!important;transform:scale(1.05)}._dragInvalid_v69yk_59{background-color:var(--mui-palette-error-light, #ef9a9a)!important;cursor:not-allowed}._value_v69yk_44{font-size:var(--sudoku-font-size-value, 24px);font-weight:500;color:var(--sudoku-user-text, #1976d2);user-select:none;line-height:1}._pencilMarks_v69yk_72{display:grid;grid-template-columns:repeat(var(--pencil-cols, 3),1fr);position:absolute;inset:2px;pointer-events:none}._mark_v69yk_80{font-size:var(--sudoku-font-size-pencil, 10px);color:var(--sudoku-hint-text, #757575);display:flex;align-items:center;justify-content:center;line-height:1}@keyframes _shake_v69yk_1{0%,to{transform:translate(0)}25%{transform:translate(-2px)}75%{transform:translate(2px)}}._grid_pf4xw_1{display:flex;flex-direction:column;background-color:var(--sudoku-box-border, #212121);border:3px solid var(--sudoku-box-border, #212121);border-radius:4px;gap:var(--sudoku-cell-gap);box-shadow:0 4px 12px #00000026}._grid_pf4xw_1 ._row_pf4xw_10{display:flex;gap:var(--sudoku-cell-gap)}._grid_pf4xw_1 ._row_pf4xw_10:nth-child(3n):not(:last-child){margin-bottom:var(--sudoku-box-gap)}._row_pf4xw_10{display:flex}._palette_cywdv_1{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;padding:16px;background-color:var(--mui-palette-background-paper, #ffffff);border-radius:8px;box-shadow:0 2px 4px #0000001a;max-width:100%}._number_cywdv_13{appearance:none;background:none;border:none;padding:0;margin:0;font:inherit;color:inherit;cursor:pointer;display:flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:18px;font-weight:600;color:var(--mui-palette-primary-main, #1976d2);background-color:var(--mui-palette-background-default, #f5f5f5);border:2px solid var(--mui-palette-primary-main, #1976d2);border-radius:8px;cursor:grab;transition-property:transform,background-color,box-shadow;transition-duration:.15s;transition-timing-function:ease}._number_cywdv_13:hover{background-color:var(--mui-palette-primary-light, #64b5f6);color:var(--mui-palette-primary-contrastText, #ffffff);transform:scale(1.1)}._number_cywdv_13:active{cursor:grabbing;transform:scale(.95)}._number_cywdv_13:focus-visible{outline:2px solid var(--mui-palette-primary-main, #1976d2);outline-offset:2px}@media(max-width:767px){._number_cywdv_13{width:36px;height:36px;font-size:14px}}._dragging_cywdv_59{opacity:.5;cursor:grabbing}._highlighted_cywdv_64{background-color:var(--mui-palette-primary-main, #1976d2);color:var(--mui-palette-primary-contrastText, #ffffff);box-shadow:0 2px 8px #1976d266}._panel_12y83_1{margin-bottom:16px}._header_12y83_5{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}._titleRow_12y83_12{display:flex;align-items:center;gap:8px}._modeToggle_12y83_18{margin-bottom:12px}._divider_12y83_22{margin:12px 0}._message_12y83_26{text-align:center;padding:16px 0}._hintContent_12y83_31{padding:8px 0}._chips_12y83_35{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}._confident_12y83_42{display:block;margin-top:8px;font-weight:500}._allHints_12y83_48{max-height:300px;overflow-y:auto}._allHints_12y83_48::-webkit-scrollbar{width:8px;height:8px}._allHints_12y83_48::-webkit-scrollbar-track{background:var(--mui-palette-action-hover, #f5f5f5);border-radius:4px}._allHints_12y83_48::-webkit-scrollbar-thumb{background:var(--mui-palette-action-disabled, #bdbdbd);border-radius:4px}._allHints_12y83_48::-webkit-scrollbar-thumb:hover{background:var(--mui-palette-action-active, #9e9e9e)}._hintItem_12y83_68{display:flex;align-items:center;gap:8px;padding:4px 0;border-bottom:1px solid var(--mui-palette-divider, #e0e0e0)}._hintItem_12y83_68:last-child{border-bottom:none}._cellLabel_12y83_79{min-width:48px;color:var(--mui-palette-text-secondary, #666)}._hintValues_12y83_84{display:flex;gap:4px;flex-wrap:wrap}._hintValue_12y83_84{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;font-size:12px;background-color:var(--mui-palette-action-hover, #f5f5f5);border-radius:4px;padding:0 4px}._hintValue_12y83_84._confident_12y83_42{background-color:var(--mui-palette-primary-main, #1976d2);color:var(--mui-palette-primary-contrastText, #ffffff);font-weight:600}._panel_bjp1y_1{margin-bottom:16px}._mainActions_bjp1y_5{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}._progress_bjp1y_12{margin:16px 0;padding:12px;background-color:var(--mui-palette-action-hover, #f5f5f5);border-radius:8px}._progressHeader_bjp1y_19{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}._solutionNav_bjp1y_26{display:flex;flex-direction:column;align-items:center;gap:8px;margin:16px 0;padding:12px;background-color:var(--mui-palette-action-hover, #f5f5f5);border-radius:8px}._alert_bjp1y_37{margin-top:12px}._secondaryActions_bjp1y_41{display:flex;justify-content:center;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid var(--mui-palette-divider, #e0e0e0)}._panel_bz9qi_1,._section_bz9qi_5{margin-bottom:16px}._buttonLabel_bz9qi_9{margin-left:6px}._historyButtons_bz9qi_13{display:flex;gap:8px}._randomPuzzleRow_bz9qi_18{display:flex;gap:8px;align-items:stretch}._difficultySelect_bz9qi_24{flex:1;min-width:100px}._instructions_bz9qi_29{margin-top:16px;padding-top:16px;border-top:1px solid var(--mui-palette-divider, #e0e0e0)}._instructionList_bz9qi_35{margin:8px 0 0;padding-left:16px;list-style-type:disc}._instructionList_bz9qi_35 li{margin-bottom:4px}._textField_ng1px_1{margin-top:8px}._monoInput_ng1px_5{font-family:Consolas,Monaco,Courier New,monospace;font-size:14px;line-height:1.5;letter-spacing:1px}._alert_ng1px_12{margin-top:12px}._hints_ng1px_16{margin-top:12px;padding:8px;background-color:var(--mui-palette-action-hover, #f5f5f5);border-radius:4px}