.board-start-button{min-width:150px;margin-top:4px}.cell{position:relative;display:grid;place-items:center;min-width:0;min-height:0;overflow:hidden;border:1px solid rgba(50,21,7,0.22);color:#2b160d;background:#fffdf7;font-size:clamp(18px,3.96vw,38px);font-weight:900;line-height:1;cursor:pointer}.cell:nth-child(3n){border-right-color:rgba(50,21,7,0.48);border-right-width:2px}.cell:nth-child(9n){border-right-width:1px}.cell:nth-child(n+19):nth-child(-n+27),.cell:nth-child(n+46):nth-child(-n+54){border-bottom-color:rgba(50,21,7,0.48);border-bottom-width:2px}.sudoku-board.killer-board{border-color:rgba(0,0,0,0.76)}.sudoku-board.killer-board .cell{border-color:rgba(50,21,7,0.10)}.sudoku-board.killer-board .cell:nth-child(3n){border-right-color:rgba(0,0,0,0.78);border-right-width:2px}.sudoku-board.killer-board .cell:nth-child(9n){border-right-color:rgba(50,21,7,0.10);border-right-width:1px}.sudoku-board.killer-board .cell:nth-child(n+19):nth-child(-n+27),.sudoku-board.killer-board .cell:nth-child(n+46):nth-child(-n+54){border-bottom-color:rgba(0,0,0,0.78);border-bottom-width:2px}.cell.given{color:var(--ink)}.cell.peer{background:#fff2d7}.cell.box-peer{background:#fbe8c2}.cell.selected{color:#fff;background:var(--accent)}.cell.same-number:not(.selected){color:var(--accent-dark);background:#f9d9cc}.cell.filled:not(.selected):not(.wrong):not(.peer):not(.box-peer):not(.same-number){background:#fffdf7}.cell.wrong{color:#fff;background:#7c241b}.cell.conflict:not(.selected):not(.wrong){color:#7c241b;background:#ffe7df;box-shadow:inset 0 0 0 2px rgba(185,52,36,0.28)}.cell.has-notes{align-items:stretch;justify-items:stretch}.cell-notes{width:100%;height:100%;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);padding:clamp(5px,0.7vw,8px);color:rgba(72,42,23,0.78);font-size:clamp(7px,1.05vw,13px);font-weight:950;line-height:1}.cell-notes span{display:grid;place-items:center;min-width:0;min-height:0}.cell.selected .cell-notes,.cell.wrong .cell-notes{color:rgba(255,255,255,0.92)}.score-popup{position:absolute;top:8px;left:50%;z-index:9;min-width:max-content;padding:2px 6px;border:0.7px solid rgba(200,68,45,0.50);border-radius:8px;color:#2f7f5f;background:rgba(255,253,247,0.94);box-shadow:0 8px 18px rgba(85,48,21,0.12);font-size:clamp(10px,1.1vw,13px);font-weight:950;line-height:1;pointer-events:none;transform:translate(-50%,0) scale(0.92);animation:scorePopupLift 900ms ease-out forwards}.score-popup.negative{color:#b93424}@keyframes scorePopupLift{0%{opacity:0;transform:translate(-50%,8px) scale(0.86)}16%{opacity:1;transform:translate(-50%,0) scale(1)}76%{opacity:1;transform:translate(-50%,-6px) scale(1)}100%{opacity:0;transform:translate(-50%,-12px) scale(0.96)}}.cage-overlay{position:absolute;inset:0;z-index:4;width:100%;height:100%;overflow:visible;pointer-events:none}.cage-line,.cage-line-halo{fill:none;vector-effect:non-scaling-stroke;shape-rendering:geometricPrecision}.cage-line-halo{stroke:rgba(255,253,247,0.96);stroke-width:2.4;stroke-dasharray:3.2 2.2;stroke-linecap:round;stroke-linejoin:round}.cage-line{stroke:rgba(200,68,45,0.96);stroke-width:1.15;stroke-dasharray:3.2 2.2;stroke-linecap:round;stroke-linejoin:round}.cage-sum-label{fill:#8f281b;stroke:rgba(255,253,247,0.96);stroke-width:0.055px;paint-order:stroke fill;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:0.24px;font-weight:950;letter-spacing:0;pointer-events:none;user-select:none}.score-strip,.number-pad,.game-actions,.stat-grid,.result-stats,.seo-grid,.article-grid{display:grid;gap:8px}.score-strip{grid-template-columns:repeat(3,minmax(0,1fr))}.score-strip>div,.stat-tile,.status-box,.qr-card{border:1px solid var(--line);border-radius:8px;background:rgba(255,248,229,0.76)}.score-strip>div{display:grid;place-items:center;min-width:0;padding:10px 8px;text-align:center}.score-strip .section-kicker{width:100%;font-size:9px;letter-spacing:0.16em;text-align:center}.score-strip strong{display:block;margin-top:3px;overflow:hidden;color:var(--ink);font-size:clamp(16px,1.45vw,22px);line-height:1;text-overflow:ellipsis;white-space:nowrap}.control-title{margin:14px 0 8px;color:var(--muted)}.number-pad{grid-template-columns:repeat(3,1fr);align-items:center}.number-pad button{position:relative;display:grid;place-items:center;gap:2px;aspect-ratio:1;min-width:0;min-height:0;color:var(--accent-dark);background:radial-gradient(circle at 50% 18%,rgba(255,255,255,0.86) 0,rgba(255,255,255,0.0) 46%),linear-gradient(180deg,#fff 0%,#ffe8b7 100%);box-shadow:inset 0 -2px 0 rgba(169,139,97,0.14),0 8px 16px rgba(85,48,21,0.06)}.number-pad button:disabled{cursor:default;opacity:0.42;filter:grayscale(0.8);transform:none}.number-pad button.complete{border-color:rgba(121,82,52,0.18);background:linear-gradient(180deg,rgba(255,255,255,0.86),rgba(238,229,210,0.82));box-shadow:none}.num-main{color:var(--accent-dark);font-size:31px;font-weight:950;line-height:0.95}.num-left{position:absolute;left:50%;bottom:5px;transform:translateX(-50%);min-height:12px;color:#b93424;font-size:11px;font-weight:950;line-height:1;letter-spacing:0}.status-box:empty{display:none}.game-actions{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:10px}.game-actions .button{min-width:0;padding-inline:6px}.game-actions #copyIdButton{grid-column:1 / -1;min-height:36px}.setting-hidden{display:none !important}.game-settings{display:grid;gap:8px;margin-top:10px}.game-settings-toggle{min-height:38px}.game-settings-panel{display:grid;gap:7px;padding:10px;border:1px solid rgba(200,68,45,0.18);border-radius:8px;background:radial-gradient(circle at 100% 0%,rgba(246,194,108,0.16),transparent 36%),rgba(255,253,247,0.90);box-shadow:0 12px 24px rgba(85,48,21,0.08)}.game-settings-panel[hidden]{display:none}.setting-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;min-height:34px;padding:6px 8px;border:1px solid rgba(169,139,97,0.20);border-radius:8px;color:var(--ink);background:rgba(255,248,229,0.58);font-size:12px;font-weight:850;line-height:1.15}.setting-row input{width:36px;height:20px;margin:0;accent-color:var(--accent)}.fullscreen-toggle{margin-top:4px}