.dialog.flow-dialog[open]{flex-direction:column;display:flex;overflow:hidden}.flow-dialog>.dialog-header{flex:none}.flow-content{overscroll-behavior:contain;flex:auto;min-height:0;margin:-6px;padding:6px;overflow:auto}.flow-actions{border-top:1px solid var(--border);flex:none;margin-top:8px;padding-top:8px}.flow-actions .flow-toolbar{align-items:center;margin:0}.flow-actions button{min-height:44px}.flow-secondary{margin-bottom:8px}.flow-secondary>button{width:100%}.flow-dialog .qr-form{flex-direction:column;flex:auto;gap:0;min-height:0;display:flex}.flow-dialog .code-input-content{flex-direction:column;gap:12px;display:flex}.flow-dialog .camera-content{flex-direction:column;flex:1;min-height:0;display:flex}.flow-dialog .camera-preview{flex:1;min-height:0}.flow-dialog .camera-preview[hidden]{display:none}.photo-crop-content{flex-direction:column;display:flex;overflow:hidden}@media (width<=799px),(height<=500px){.dialog.flow-dialog[open]{--flow-top:max(8px, env(safe-area-inset-top));--flow-bottom:max(8px, env(safe-area-inset-bottom));max-height:calc(100dvh - var(--flow-top) - var(--flow-bottom));width:100%;margin:var(--flow-top) auto var(--flow-bottom);border-radius:12px;padding:12px}.dialog.flow-dialog:is(.training-dialog,.photo-crop-dialog,.photo-review-dialog,.photo-camera-dialog,.code-camera-dialog)[open]{height:calc(100dvh - var(--flow-top) - var(--flow-bottom))}.flow-dialog .dialog-header{margin-bottom:8px}.flow-dialog .dialog-header h2{font-size:18px}.flow-actions button{padding:8px;font-size:13px}}.floating-dock-safe-area{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);visibility:hidden;pointer-events:none;position:fixed;inset:0}.floating-dock{--dock-accent:var(--blue);--dock-shell:#eaf4ff;z-index:15;box-sizing:border-box;border:2px solid color-mix(in srgb,var(--dock-accent) 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.floating-dock-modes{box-shadow:inset 2px 0 var(--dock-accent);grid-column:2}.floating-dock[data-shape=side][data-side=left] .floating-dock-digits{grid-area:1/1}.floating-dock[data-shape=compact]{grid-template-rows:var(--dock-key-size) 1fr}.floating-dock[data-shape=compact] .floating-dock-modes{box-shadow:inset 0 -2px var(--dock-accent);grid-template-columns:repeat(4,1fr)}.floating-dock[data-shape=compact] .floating-dock-digits{grid-template-columns:repeat(3,minmax(0,1fr)) var(--dock-key-size);grid-template-rows:repeat(3,1fr)}.floating-dock[data-shape=compact] .floating-dock-eraser{grid-area:1/4/-1}.floating-dock[data-shape=compact][data-side=top]{grid-template-rows:1fr var(--dock-key-size)}.floating-dock[data-shape=compact][data-side=top] .floating-dock-modes{box-shadow:inset 0 2px var(--dock-accent);grid-row:2}.floating-dock[data-shape=compact][data-side=top] .floating-dock-digits{grid-row:1}.floating-dock[data-shape=tall]{grid-template-rows:calc(2*var(--dock-key-size)) 1fr}.floating-dock[data-shape=tall] .floating-dock-modes{box-shadow:inset 0 -2px var(--dock-accent);grid-template-rows:repeat(2,1fr);grid-template-columns:repeat(2,1fr)}.floating-dock[data-shape=tall] .floating-dock-digits{grid-template-rows:repeat(4,1fr);grid-template-columns:repeat(3,1fr)}.floating-dock button{border:0;border-right:1px solid var(--border);border-bottom:1px solid var(--border);min-width:44px;min-height:44px;font-size:calc(var(--dock-key-size)*.5);background:0 0;border-radius:0;padding:4px;line-height:1}.floating-dock button:hover:not(:disabled){background:color-mix(in srgb,var(--dock-accent) 14%,white 86%)}.floating-dock button.floating-dock-mode{color:var(--dock-accent);flex-direction:column;gap:2px;padding:2px;font-weight:700}.floating-dock button.floating-dock-mode span{font-size:clamp(11px,calc(var(--dock-key-size)/4),12px);line-height:1}.floating-dock button.floating-dock-mode[aria-pressed=true]{background:var(--dock-accent);color:#fff;box-shadow:inset 0 0 0 2px #ffffff6b}.floating-dock button.floating-dock-digit,.floating-dock button.floating-dock-eraser{background:#fff;border:0;border-radius:4px;box-shadow:inset 0 0 0 1px #65738a6b}.floating-dock button.floating-dock-digit[aria-pressed=true]{background:color-mix(in srgb,var(--dock-accent) 13%,white 87%);color:var(--dock-accent);box-shadow:inset 0 0 0 2px var(--dock-accent)}.floating-dock button.floating-dock-digit.color-graphite{color:var(--graphite)}.floating-dock button.floating-dock-digit.color-blue{color:var(--blue-dark)}.floating-dock button.floating-dock-digit.color-green{color:var(--green)}.floating-dock button.floating-dock-digit.color-orange{color:var(--orange)}.floating-dock button.floating-dock-digit.color-purple{color:var(--purple)}.floating-dock button:focus-visible{z-index:1;outline-offset:-3px;position:relative}.floating-dock button svg{width:min(64%,28px);height:min(64%,28px)}.floating-dock-digit[data-mark-kind=candidate]{text-underline-offset:.18em;text-decoration:underline}.floating-dock button.floating-dock-eraser{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--dock-accent) 45%,var(--muted));color:var(--muted);background:#fff;grid-column:1/-1}.floating-dock[data-variant=givens]{--dock-key-size:44px;grid-template-rows:28px 1fr;width:100%;height:120px;position:relative}.floating-dock-caption{color:var(--dock-accent);box-shadow:inset 0 -2px var(--dock-accent);justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.floating-dock button.floating-dock-mode svg{width:23px;height:23px}.floating-dock-swatch{aspect-ratio:1;color:#263446;border-radius:48% 52% 46% 54%/51% 46% 54% 49%;place-items:center;width:66%;height:66%;font-size:19px;display:grid}.floating-dock[data-shape=compact] .floating-dock-swatch{width:32px;height:32px}.floating-dock button.floating-dock-color[aria-pressed=true]{box-shadow:inset 0 0 0 2px var(--dock-accent);background:#f9f5fc}.floating-dock[data-variant=givens][data-shape=compact] .floating-dock-digits{grid-template-rows:repeat(2,1fr);grid-template-columns:repeat(5,minmax(0,1fr))}.floating-dock[data-variant=givens][data-shape=compact] .floating-dock-eraser{grid-area:auto}.help-dialog .dialog-header{margin-bottom:8px}.help-dialog .help-intro{margin:0 0 16px}.help-presentations{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;display:grid}.help-presentations button{flex-direction:column;gap:5px;min-width:0;padding:9px 4px;font-size:12px}.help-presentations button[data-presentation=givens]{flex-direction:row;grid-column:1/-1;min-height:36px;padding:6px}.help-presentations button[aria-pressed=true][data-presentation=candidate]{background:var(--green);border-color:var(--green)}.help-presentations 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1fr;width:224px;height:120px}.help-cell-change{justify-content:center;align-items:center;gap:12px;min-width:0;display:flex}.help-cell-change>div{justify-items:center;gap:8px;display:grid}.help-cell-label{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:11px;line-height:1}.help-dialog .help-example-cell{background:#fff;border:1px solid #aeb6c2;width:68px;height:68px;font-size:43px}.help-example-cell .marks{font-size:17px;inset:4px}.help-demo-action{color:var(--muted);flex-direction:column;align-items:center;gap:8px;padding-top:18px;display:flex}.help-demo-action svg{width:24px;height:24px}.help-dialog .help-demo-caption{text-align:center;color:var(--graphite);margin:14px 0 0;font-size:13px;line-height:1.5}.help-keyboard-section h3{justify-content:space-between;align-items:center;gap:12px;margin:0 0 8px;font-size:15px;display:flex}.help-keyboard-section h3 small{color:var(--muted);font-size:11px;font-weight:400}.help-dialog kbd{min-width:23px;min-height:24px;color:var(--graphite);white-space:nowrap;background:#fff;border:1px solid #cbd4df;border-bottom-width:2px;border-radius:4px;place-items:center;padding:3px 5px;font-family:inherit;font-size:11px;font-weight:600;line-height:1.1;display:inline-grid}.help-keyboard{margin:0 0 18px}.help-keyboard>div{border-bottom:1px solid var(--border);grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:center;gap:12px;min-height:40px;padding:7px 0;display:grid}.help-keyboard dt{color:var(--muted);flex-wrap:wrap;align-items:center;gap:4px;font-size:11px;display:flex}.help-keyboard dd{color:var(--graphite);margin:0;font-size:12px;line-height:1.4}.help-keyboard dd small{color:var(--muted);font-size:10px;display:block}.help-keyboard dt small{align-items:center;gap:4px;font-size:10px;display:flex}.help-key-combo{flex-wrap:wrap;align-items:center;gap:3px;display:inline-flex}.help-details{border-top:1px solid var(--border)}.help-details summary{cursor:pointer;padding:14px 0;font-size:14px;font-weight:600}.help-details summary:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}.techniques-intro{align-items:center;gap:20px;display:flex}.techniques-intro p{flex:1;margin:0}.techniques-intro button{flex:none}.techniques-dialog .technique-library{margin:20px 0 0}.techniques-dialog .technique-library button>span{flex-wrap:wrap}.rules-illustrations{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:24px 0;display:grid}.rules-illustrations figure{min-width:0;margin:0}.rules-illustrations svg{width:100%;height:auto;display:block;overflow:visible}.rules-illustrations figcaption{text-align:center;margin-top:10px;font-size:13px;font-weight:600}@media (width<=560px){.techniques-intro{display:block}.techniques-intro button{margin-top:12px}.rules-illustrations{grid-template-columns:1fr;justify-items:center;gap:18px}.rules-illustrations figure{width:180px;max-width:100%}.help-presentations{grid-template-columns:repeat(4,minmax(0,1fr))}.help-presentations button{flex-direction:column;padding:7px 2px;font-size:10px}.help-demo-graphics{gap:10px}.help-dock-preview{width:164px}.help-dialog .floating-dock[data-preview]:not([data-variant=givens]){--dock-key-size:40px;width:164px;height:164px}.help-dialog .floating-dock[data-preview] button{min-width:0;min-height:0}.help-cell-change{grid-template-columns:repeat(2,40px);gap:6px;display:grid}.help-cell-change>div{gap:5px}.help-cell-change>div:last-child{grid-area:1/2}.help-cell-label{font-size:9px}.help-demo-action{flex-direction:row;grid-column:1/-1;justify-content:center;gap:8px;padding-top:0}.help-demo[data-mode=givens] .help-demo-graphics{flex-direction:column}.help-demo[data-mode=givens] .help-cell-change{gap:12px;display:flex}.help-demo{margin:12px 0;padding:12px 8px}.help-dialog .help-example-cell{width:40px;height:40px;font-size:26px}.help-example-cell .marks{font-size:10px;inset:2px}.help-keyboard>div{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:8px}}@media (width<=380px){.help-dialog{padding-left:12px;padding-right:12px}.help-presentations button{padding:7px 1px;font-size:10px}.help-presentations button svg{width:18px;height:18px}.help-keyboard>div{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr)}}@media (height<=450px) and (width>=500px){.dialog.help-dialog{border-radius:12px;max-height:calc(100dvh - 16px);margin:8px auto;padding:12px}.help-dialog .dialog-header{margin-bottom:4px}.help-dialog .help-intro{margin-bottom:8px;font-size:12px}.help-overview{grid-template-columns:132px minmax(0,1fr);align-items:start;gap:12px;margin-bottom:12px;display:grid}.help-presentations{grid-template-columns:repeat(2,minmax(0,1fr))}.help-presentations button{padding:6px 2px;font-size:10px}.help-presentations button[data-presentation=givens]{flex-direction:column}.help-demo{margin:0;padding:8px}.help-demo-graphics{flex-wrap:wrap;gap:8px}.help-dock-preview{width:148px}.help-dialog .floating-dock[data-preview]:not([data-variant=givens]){--dock-key-size:36px;width:148px;height:148px}.help-dialog .floating-dock[data-preview] button{min-width:0;min-height:0}.help-dialog .help-example-cell{width:40px;height:40px;font-size:26px}.help-example-cell .marks{font-size:10px;inset:2px}.help-cell-change{gap:6px}.help-dialog .help-demo-caption{margin-top:8px;font-size:12px}}:root{color:#122246;font-synthesis:none;--blue:#0670e5;--blue-dark:#075cc0;--pale-blue:#eaf4ff;--border:#dce3ed;--muted:#65738a;--surface:#f6f8fb;--graphite:#3f4854;--green:#16804a;--orange:#aa5900;--purple:#8145be;--radius:7px;--board-size:540px;background:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:400}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:default;color:#7b8799;background:#f8f9fb}button{border:1px solid var(--border);background:var(--surface);border-radius:var(--radius);justify-content:center;align-items:center;gap:9px;min-height:44px;padding:10px 14px;font-size:14px;font-weight:500;display:inline-flex}button:hover:not(:disabled){background:#eaf1fa;border-color:#afc6e3}button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #0875ed}button.primary,button[aria-pressed=true]:not(.swatch){background:var(--blue);color:#fff;border-color:var(--blue)}button.primary:hover{background:var(--blue-dark)}svg{flex:none;width:21px;height:21px}input,textarea{min-width:0;color:inherit;background:#fff;border:1px solid #bac5d5;border-radius:6px;padding:12px}textarea{resize:vertical;width:100%;min-height:135px;line-height:1.5}h1,h2,p{margin:0}h2{font-size:20px}a{color:var(--blue-dark)}.color-graphite{color:var(--graphite)}.color-blue{color:var(--blue-dark)}.color-green{color:var(--green)}.color-orange{color:var(--orange)}.color-purple{color:var(--purple)}.bg-graphite{background:var(--graphite)}.bg-blue{background:var(--blue)}.bg-green{background:var(--green)}.bg-orange{background:var(--orange)}.bg-purple{background:var(--purple)}.app-shell{flex-direction:column;max-width:1200px;height:100dvh;margin:0 auto;padding:20px 28px 16px;display:flex}.app-header{border-bottom:1px solid #e6ebf1;flex:none;align-items:center;gap:22px;min-height:68px;margin-bottom:20px;padding-bottom:16px;display:flex}.brand{flex-shrink:0;align-items:center;gap:12px;display:flex}.brand>svg{color:#0568d6;stroke-width:1.9px;width:39px;height:39px}.brand h1{letter-spacing:-1.1px;font-size:31px;font-weight:700}.header-meta{flex-direction:column;gap:5px;font-size:13px;display:flex}.game-code{font-variant-numeric:tabular-nums;letter-spacing:.25px;color:var(--muted);font-size:12px}.header-actions{gap:8px;margin-left:auto;display:flex}.header-actions button{white-space:nowrap;background:#fff}.game-layout{flex-direction:column;flex:1;align-items:center;gap:8px;min-height:0;display:flex;container-type:size}@media (width>=1000px){.game-layout:not(.dock-fallback){max-height:772px}}.board-region{--fitted-board:min(100cqw,100cqh);flex:1;justify-content:center;align-items:center;width:100%;min-width:0;min-height:0;display:flex;container-type:size}.board-region .board{width:var(--game-board-size,var(--fitted-board));transform:translate(var(--game-board-x,0),var(--game-board-y,0));flex:none}.game-layout.dock-fallback{min-width:var(--dock-surface-width);min-height:var(--dock-surface-height);flex:none;align-items:center}.dock-fallback .board-region{height:var(--dock-natural-region-height);flex:none}.app-shell:has(.dock-fallback){height:auto;min-height:100dvh;overflow:visible}.tools{width:min(100%,420px);min-width:0;transform:translateX(var(--tools-x,0px));flex:none}.action-bar{flex:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;display:grid}.action-bar button{gap:4px;height:44px;padding:8px 3px;font-size:12px}.action-bar svg{width:16px;height:16px}.mobile-only{display:none}.empty-state{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:20px;min-height:0;display:flex}.empty-state>.new-game-choices{width:min(100%,620px)}.toast{color:#fff;z-index:20;background:#142647;border-radius:8px;width:max-content;max-width:calc(100% - 24px);padding:14px 22px;font-size:14px;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 4px 20px #11203c20}.notice{background:#fff5e7;border:1px solid #e1cda9;border-radius:6px;flex:none;margin-bottom:16px;padding:12px;font-size:13px;line-height:1.5}.update-banner{z-index:10;background:var(--pale-blue);border:1px solid var(--border);border-radius:8px;align-items:center;gap:12px;width:max-content;max-width:calc(100% - 20px);padding:8px 10px;font-size:13px;display:flex;position:fixed;top:12px;left:50%;transform:translate(-50%);box-shadow:0 4px 20px #11203c20}.update-banner .dismiss-update{background:0 0;border:0;flex:none;width:44px;padding:0;font-size:22px}.dialog{border:1px solid var(--border);width:calc(100% - 32px);max-width:620px;max-height:calc(100dvh - 40px);color:inherit;background:#fff;border-radius:12px;padding:26px;overflow:auto;box-shadow:0 20px 80px #15254420}.dialog::backdrop{background:#14243b55}.dialog-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;display:flex}.dialog-header h2{letter-spacing:-.4px;font-size:21px}.dialog-header button{background:#fff;border:0;width:32px;min-height:32px;padding:0;font-size:22px}.dialog p{color:var(--muted);margin:12px 0;font-size:14px;line-height:1.55}.dialog label{margin:14px 0 8px;font-size:13px;font-weight:500;display:block}.dialog-actions,.dialog-footer{justify-content:flex-end;gap:9px;margin-top:20px;display:flex}.difficulty-options{gap:8px;margin:22px 0;display:flex}.difficulty-options button{flex:1;padding:12px 8px}.full-width{width:100%}.game-list{gap:8px;max-height:290px;margin:18px 0;display:grid;overflow:auto}.game-list>button{text-align:left;background:#fff;justify-content:space-between;min-height:65px;padding:12px;display:flex}.game-list>button>span{flex:1}.game-list strong{margin-bottom:4px;font-size:14px;display:block}.game-list small{color:var(--muted);font-size:11px;display:block}.game-list .active-game{border-color:var(--blue);background:var(--pale-blue)}.menu-actions{gap:8px;margin-top:14px;display:grid}.menu-actions 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#151a21}.cell{min-width:0;min-height:0;color:var(--blue-dark);touch-action:manipulation;background:#fff;border:0;border-radius:0;justify-content:center;align-items:center;padding:0;font-size:6.8cqw;font-weight:500;line-height:1;display:flex;position:relative}.cell:not(:last-child){border-right:1px solid #aeb6c2}.cell:nth-child(3),.cell:nth-child(6){border-right:3px solid #151a21}.cell:disabled{color:var(--blue-dark);background:#fff}.cell.given{color:#111318;font-weight:600}.cell.related{background:#f3f7fc}.cell.same-value{background:#e8f2fc}.cell.selected{box-shadow:inset 0 0 0 2px var(--blue);z-index:1;background:#dfefff}.cell:hover:not(:disabled){background:#edf5ff}.cell.selected:hover{background:#dfefff}.cell:focus-visible{box-shadow:inset 0 0 0 3px 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.value{z-index:1}.mark.excluded,.floating-dock-digit[data-mark-kind=excluded],.preview-eliminated{position:relative}.mark.excluded:not(:empty):after,.floating-dock-digit[data-mark-kind=excluded]:not(:empty):after,.preview-eliminated:not(:empty):after{content:"";pointer-events:none;background:currentColor;border-radius:1em;width:1em;height:max(1px,.075em);position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(-35deg);box-shadow:0 0 0 .5px #fff}.print-sheet{display:none}@page{size:auto;margin:15mm}@media print{body{color:#000;background:#fff}.floating-dock,.app-shell,.toast,dialog{display:none!important}.print-sheet{break-inside:avoid;width:175mm;max-width:100%;margin:0 auto;display:block}.print-sheet header{justify-content:space-between;align-items:center;margin-bottom:9mm;display:flex}.print-sheet h1{font-size:28pt}.print-sheet header span{font-size:14pt}.print-board{aspect-ratio:1;border:2pt solid #000;grid-template-rows:repeat(9,minmax(0,1fr));grid-template-columns:repeat(9,minmax(0,1fr));width:100%;display:grid}.print-board>span{color:#000;border-bottom:.5pt solid #666;border-right:.5pt solid #666;justify-content:center;align-items:center;font-size:25pt;display:flex}.print-board>span:nth-child(3n){border-right:2pt solid #000}.print-board>span:nth-child(9n){border-right:0}.print-board>span:nth-child(n+19):nth-child(-n+27),.print-board>span:nth-child(n+46):nth-child(-n+54){border-bottom:2pt solid #000}.print-board>span:nth-child(n+73){border-bottom:0}.print-sheet footer{justify-content:space-between;align-items:center;gap:8mm;margin-top:7mm;display:flex}.print-sheet footer p{font-size:10pt;line-height:2}.print-sheet img{width:29mm;height:29mm;image-rendering:pixelated}}