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h1{height:36px;font-size:18px;letter-spacing:1px}.sudoku-container{grid-column:1;grid-row:2;width:var(--container-size);height:var(--container-size);padding:var(--container-pad);box-sizing:border-box}#sudoku-board{width:var(--board-size);height:var(--board-size);display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr)}.sudoku-cell{width:auto;height:auto;min-width:0;min-height:0;font-size:calc(var(--cell-size) * .5)}.cell-notes{font-size:calc(var(--cell-size) * .22)}#nums{grid-column:2;grid-row:2;width:var(--num-col-width);height:var(--board-size);max-height:var(--board-size);margin:0;padding:0;display:flex;flex-direction:column;flex-wrap:nowrap;justify-content:space-between;align-items:center;gap:0;box-sizing:border-box}.num-tile{width:var(--num-col-width);max-width:none;max-height:var(--num-col-width);min-width:0;min-height:0;flex:1 1 0;height:auto;box-sizing:border-box;margin:0;font-size:clamp(14px,4vw,20px);border-radius:50%}.panel-section{margin-bottom:8px;padding:8px 10px}.left-column .panel-section:last-child,.side-panel .panel-section:last-child{margin-bottom:0}.panel-section .game-controls{flex-direction:row;flex-wrap:wrap;gap:6px;justify-content:center}.panel-section .game-controls .control-btn{width:calc(50% - 4px);height:38px}.level-list{flex-direction:row;flex-wrap:wrap;justify-content:center}.level-list .difficulty-btn{width:calc(50% - 3px);height:38px}.control-btn,.difficulty-btn{height:38px;font-size:12px}.bg-controls{top:6px;right:6px;gap:6px}.focus-controls{top:6px;left:6px;gap:6px}.cycle-bg-btn{width:36px;height:36px;font-size:16px}.blur-slider,.volume-slider{width:70px}.bg-credit{bottom:6px;left:6px;max-width:45vw;font-size:9px;line-height:1.3;padding:4px 6px}.footer-credit{bottom:6px;right:6px;max-width:45vw;font-size:9px;line-height:1.3;padding:4px 6px}#root{padding-bottom:60px}#pause-overlay .overlay-text{font-size:18px;letter-spacing:3px}.start-btn{width:140px!important;height:48px!important;font-size:18px!important;letter-spacing:4px!important}#end-message{font-size:24px;padding:8px 20px}.modal{max-width:90vw;padding:14px 18px 12px}.stats-modal{max-width:90vw}.stats-text{font-size:10px;padding:8px 10px}hr{width:var(--container-size)}}@media (max-width: 420px){:root{--num-gap: 6px;--board-size: min(calc((96vw - var(--num-gap)) * .9), 380px)}.game-title h1{font-size:16px}h1{font-size:20px}.panel-section h3{font-size:11px;letter-spacing:2px}.stat-row{font-size:10px}.tips-text,.tips-list{font-size:12px}.control-btn,.difficulty-btn{font-size:11px;letter-spacing:1px}.num-tile{font-size:clamp(14px,4vw,20px)}}@media (max-height: 500px) and (orientation: landscape) and (max-width: 960px){:root{--board-size: min(70vh, 380px)}.main-layout{flex-direction:row;align-items:flex-start;flex-wrap:wrap;justify-content:center}.board-area{order:1;width:auto}.left-column{order:2;width:180px;max-width:180px}.side-panel{order:3;width:180px;max-width:180px}}.board-touch-input{display:none}@media (max-width: 960px) and (pointer: coarse){.board-touch-input{display:block;position:absolute;top:var(--container-pad);left:var(--container-pad);width:var(--board-size);height:var(--board-size);z-index:2;opacity:0;background:transparent;color:transparent;caret-color:transparent;border:0;padding:0;margin:0;outline:none;font-size:16px;cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;box-sizing:border-box}.sudoku-container{position:relative}}.control-btn.attention{animation:btn-pulse 1.6s ease-in-out infinite}@keyframes btn-pulse{0%,to{box-shadow:inset 0 1px #ffffffbf,inset 0 -1px 1px #553d3b1a,0 2px #4a3a30,0 3px 6px #4a3a3047,0 0 #553d3b00}50%{box-shadow:inset 0 1px #ffffffbf,inset 0 -1px 1px #553d3b1a,0 2px #4a3a30,0 3px 6px #4a3a3047,0 0 0 9px #553d3b00}25%,75%{box-shadow:inset 0 1px #ffffffbf,inset 0 -1px 1px #553d3b1a,0 2px #4a3a30,0 3px 6px #4a3a3047,0 0 0 5px #7d5a558c}}body.dark-mode{color:#f0e8d8}body.dark-mode .panel-section{background-color:#1e18149e;border-color:#dcc8aa33;color:#f0e8d8}body.dark-mode .panel-section h3{color:#d4c9b3;border-bottom-color:#dcc8aa4d}body.dark-mode .stat-row,body.dark-mode .status-label,body.dark-mode .tips-list,body.dark-mode .setting-row,body.dark-mode .records-note,body.dark-mode .solve-count{color:#d4c9b3}body.dark-mode .tips-list strong{color:#faf2dd}body.dark-mode #strikes,body.dark-mode #strikes.strikes-gameover{color:#f0d8c8}body.dark-mode #strikes.strikes-solved{color:#9ed0b6}body.dark-mode .stat-row.stat-row-disabled,body.dark-mode .stat-row.stat-row-disabled .status-label,body.dark-mode .stat-row.stat-row-disabled #strikes{color:#7a7060;opacity:.55}body.dark-mode .sudoku-container{background-color:#1e1814b8;border-color:#dcc8aa33;filter:drop-shadow(1px 1px 6px #000)}body.dark-mode .sudoku-container.is-paused{background-color:transparent;border-color:transparent;filter:none}body.dark-mode .sudoku-cell{color:#d4c9b3;border-color:#dcc8aa1f}body.dark-mode .sudoku-cell:hover{background-color:#fffaf01a}body.dark-mode .cell-pre-filled{color:#faf2dd}body.dark-mode .cell-valid{color:#9ed0b6}body.dark-mode .cell-hint{color:#f0b09c}body.dark-mode .cell-solved{color:#7fc7a8}body.dark-mode .cell-gameover-fill{color:#c47474}body.dark-mode .cell-selected{background-color:#ffcdcd38!important;outline-color:#d4c9b3}body.pencil-mode.dark-mode .cell-selected{background-color:#78c89638!important;outline-color:#9ed0b6}body.dark-mode .cell-peer{background-color:#ffa0a01a}body.dark-mode .cell-same-num{background-color:#8cafdc2e}body.dark-mode .horizontal-divider{border-bottom-color:#dcc8aa59}body.dark-mode .vertical-divider{border-right-color:#dcc8aa59}body.dark-mode .cell-pending{background-color:#ffc8784d!important;outline-color:#f0d8a0!important;color:#faf2dd!important}body.dark-mode .cell-notes{color:#b8b0a0}body.dark-mode #start-overlay{background-color:transparent}body.dark-mode .overlay-text{color:#f0e8d8;text-shadow:0 1px 3px rgba(0,0,0,.9)}body.dark-mode #end-message{background-color:#1e1814c7;color:#f0e8d8}body.dark-mode #end-overlay.solved #end-message{color:#9ed0b6}body.dark-mode #end-overlay.game-over #end-message{color:#f0d8c8}body.dark-mode .modal{background-color:#1f1815;background-blend-mode:multiply;border-color:#d4c9b3;color:#f0e8d8;box-shadow:0 12px 30px #000000b3}body.dark-mode .modal-message{color:#faf2dd}body.dark-mode .modal-sub{color:#d4c9b3}body.dark-mode .stats-text{background-color:#1e1814c7;border-color:#dcc8aa33;color:#f0e8d8}body.dark-mode .stats-modal .modal-message,body.dark-mode .new-record{color:#7fc7a8}body.dark-mode .bg-credit,body.dark-mode .footer-credit{background-color:#1e18149e;color:#f0e8d8}body.dark-mode .bg-credit a,body.dark-mode .footer-credit a{color:#d4b3a8}body.dark-mode .bg-credit a:hover,body.dark-mode .footer-credit a:hover{color:#e8c8be}body.dark-mode .blur-slider,body.dark-mode .volume-slider{background:#1e1814ad;border-color:#d4c9b3}body.dark-mode .setting-toggle.icon-toggle-on{color:#d4c9b3}body.dark-mode .setting-toggle.icon-toggle-off{color:#6b6358}body.dark-mode .setting-row:hover .setting-toggle.icon-toggle-on{color:#faf2dd}body.dark-mode .setting-row:hover .setting-toggle.icon-toggle-off{color:#8a8275}body.dark-mode .setting-row:focus-visible{outline-color:#d4c9b3}body.dark-mode .num-tile,body.dark-mode .control-btn,body.dark-mode .difficulty-btn,body.dark-mode .cycle-bg-btn{color:#f0e8d8;background:linear-gradient(180deg,#4c3a32,#382a24 55%,#251c17);border-color:#1a120e;box-shadow:inset 0 1px #ffffff1a,inset 0 -1px 1px #0003,0 2px #1a120e,0 3px 6px #00000073}body.dark-mode .num-tile:hover,body.dark-mode .control-btn:hover,body.dark-mode .difficulty-btn:hover,body.dark-mode .cycle-bg-btn:hover{background:linear-gradient(180deg,#574238,#41312a 55%,#2d231d);box-shadow:inset 0 1px #ffffff29,inset 0 -1px 1px #00000038,0 1px #1a120e,0 2px 4px #00000080}body.dark-mode .blur-slider::-webkit-slider-thumb,body.dark-mode .volume-slider::-webkit-slider-thumb,body.dark-mode .blur-slider::-moz-range-thumb,body.dark-mode .volume-slider::-moz-range-thumb{background:linear-gradient(180deg,#4c3a32,#382a24 55%,#251c17);border-color:#1a120e;box-shadow:0 2px #1a120e,0 3px 4px #00000073}body.dark-mode .num-clicked,body.dark-mode .difficulty-btn.selected,body.dark-mode .focus-btn.is-active{background:linear-gradient(180deg,#ede0d6,#ccb6a8 55%,#9c8073)!important;color:#2a1c14!important;border-color:#4a3a30!important;box-shadow:inset 0 1px #ffffff80,inset 0 -1px 2px #553d3b33,0 1px #4a3a30,0 2px 5px #0006}body.dark-mode .num-clicked:hover,body.dark-mode .focus-btn.is-active:hover{background:linear-gradient(180deg,#f3e6dd,#d4c0b3 55%,#a48b7f)!important;color:#2a1c14!important;box-shadow:inset 0 1px #fff9,inset 0 -1px 2px #553d3b33,0 1px #4a3a30,0 2px 4px #0006}