:root{--raised:inset 0 1.5px 0 #ffffff8c, inset 1px 0 0 #ffffff2e, inset -1px 0 0 #00000014, inset 0 -4px 0 #0000002e, 0 1px 1px #0000002e, 0 4px 8px -2px #00000047;--raised-strong:inset 0 2px 0 #fff9, inset 1px 0 0 #fff3, inset -1px 0 0 #0000001a, inset 0 -5px 0 #00000038, 0 2px 2px #0003, 0 8px 14px -4px #00000059;--pressed:inset 0 3px 5px #0003, inset 0 1px 1px #0000001f, inset 0 -1px 0 #ffffff4d;--tray:inset 0 4px 10px #00000042, inset 0 -1px 0 #ffffff4d, 0 0 0 1px #ffffff59, 0 1px 0 #fff6, 0 14px 30px -10px #00000059;--sheen:radial-gradient(ellipse 70% 50% at 30% 18%, #ffffff47, #fff0 70%), linear-gradient(180deg, #ffffff29, #fff0 55%);--ambient:radial-gradient(ellipse 70% 45% at 50% 28%, #fff8e673, transparent 70%), radial-gradient(ellipse 120% 60% at 50% 110%, #00000014, transparent 70%);--shade:radial-gradient(ellipse 120% 95% at 50% 40%, transparent 52%, #0000002e)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ambient:radial-gradient(ellipse 80% 60% at 50% 32%, #ffffff0f, transparent 70%);--shade:radial-gradient(ellipse 130% 100% at 50% 40%, transparent 55%, #00000059);--sheen:linear-gradient(180deg, #ffffff1a, #fff0 55%)}}:root[data-theme=dark]{--ambient:radial-gradient(ellipse 80% 60% at 50% 32%, #ffffff0f, transparent 70%);--shade:radial-gradient(ellipse 130% 100% at 50% 40%, transparent 55%, #00000059);--sheen:linear-gradient(180deg, #ffffff1a, #fff0 55%)}@keyframes art-pop{0%{opacity:0;transform:scale(.4)}70%{opacity:1;transform:scale(1.08)}to{transform:scale(1)}}@keyframes art-pulse{0%{transform:scale(1)}45%{transform:scale(1.14)}to{transform:scale(1)}}@keyframes art-shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-5px)}40%,80%{transform:translate(5px)}}@keyframes art-press{0%{transform:scale(1)}40%{transform:scale(.9)}to{transform:scale(1)}}.art-pop{animation:.22s ease-out art-pop}.art-pulse{animation:.22s ease-out art-pulse}.art-shake{animation:.32s ease-in-out art-shake}.art-press{animation:.18s ease-out art-press}@media (prefers-reduced-motion:reduce){.art-pop,.art-pulse,.art-shake,.art-press{animation:none}}.sound-toggle{background:var(--btn,#00000040);width:36px;min-width:36px;height:36px;color:var(--ink,#fff);cursor:pointer;border:0;border-radius:50%;place-items:center;padding:0;display:inline-grid}.sound-toggle svg{width:20px;height:20px}.sound-toggle[aria-pressed=true]{opacity:.7}.sound-toggle:focus-visible{outline:3px solid var(--focus,#ffd54a);outline-offset:2px}:root{--bg:#f4f1ea;--ink:#1d2433;--muted:#5c6475;--grid-line:#c9ccd3;--grid-bold:#1d2433;--cell:#fff;--given:#1d2433;--user:#2b5cab;--wrong:#c62828;--conflict-bg:#fde3e1;--peer:#e8eef8;--same:#c9d9f2;--selected:#9fbde8;--btn:#e3e5ea;--btn-ink:#1d2433;--primary:#2b5cab;--primary-ink:#fff;--focus:#f2a900;--dialog:#fff;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#14171d;--ink:#e8eaef;--muted:#9aa1b0;--grid-line:#3a404c;--grid-bold:#c3c8d2;--cell:#1c2029;--given:#e8eaef;--user:#8fb4ff;--wrong:#ff8a80;--conflict-bg:#4a2323;--peer:#222a38;--same:#2d3d5c;--selected:#36507f;--btn:#2a2f3a;--btn-ink:#e8eaef;--primary:#5b8def;--dialog:#1f232c;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--bg:#14171d;--ink:#e8eaef;--muted:#9aa1b0;--grid-line:#3a404c;--grid-bold:#c3c8d2;--cell:#1c2029;--given:#e8eaef;--user:#8fb4ff;--wrong:#ff8a80;--conflict-bg:#4a2323;--peer:#222a38;--same:#2d3d5c;--selected:#36507f;--btn:#2a2f3a;--btn-ink:#e8eaef;--primary:#5b8def;--dialog:#1f232c;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--ambient), var(--shade), var(--grain,none), var(--bg);color:var(--ink);-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;font:15px/1.3 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}#app{--size:min(calc(100vw - 24px), calc(100dvh - 230px), 480px);flex-direction:column;justify-content:center;align-items:center;gap:10px;height:100dvh;padding:8px 12px;display:flex}.bar{width:var(--size);justify-content:space-between;align-items:center;gap:8px;display:flex}.stats{color:var(--muted);font-variant-numeric:tabular-nums;flex-wrap:wrap;justify-content:flex-end;gap:12px;font-size:13px;display:flex}.stats .difficulty{color:var(--ink);font-weight:600}.grid{width:var(--size);height:var(--size);border:2px solid var(--grid-bold);background:var(--grid-line);border-radius:4px;grid-template-rows:repeat(9,1fr);grid-template-columns:repeat(9,1fr);gap:1px;display:grid;box-shadow:0 1px 2px #0000001f,0 8px 22px #0000001f}.cell{background:var(--cell);font:inherit;color:var(--user);font-size:calc(var(--size) / 9 * .55);cursor:pointer;border:0;place-items:center;min-width:0;min-height:0;margin:0;padding:0;font-weight:500;display:grid;position:relative}.cell.box-right{box-shadow:1px 0 0 0 var(--grid-bold)}.cell.box-bottom{box-shadow:0 1px 0 0 var(--grid-bold)}.cell.box-right.box-bottom{box-shadow:1px 0 0 0 var(--grid-bold), 0 1px 0 0 var(--grid-bold), 1px 1px 0 0 var(--grid-bold)}.cell.given{color:var(--given);font-weight:700}.cell.peer{background:var(--peer)}.cell.same{background:var(--same)}.cell.selected{background:var(--selected)}.cell.conflict{background:var(--conflict-bg)}.cell.selected.conflict{box-shadow:inset 0 0 0 3px var(--primary)}.cell.wrong{color:var(--wrong)}.cell:focus-visible{outline:3px solid var(--focus);outline-offset:-3px;z-index:1}.cell:disabled{cursor:default}.notes{font-size:max(10px, calc(var(--size) / 9 * .24));color:var(--ink);opacity:.72;grid-template-columns:repeat(3,1fr);place-items:center;font-weight:600;line-height:1;display:grid;position:absolute;inset:2px}.tools{width:var(--size);grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.tool,.btn{font:inherit;color:var(--btn-ink);background:var(--btn);cursor:pointer;white-space:nowrap;border:0;border-radius:10px;min-height:40px;padding:8px 10px;font-size:14px;font-weight:600}.tool[aria-pressed=true]{background:var(--primary);color:var(--primary-ink)}.tool:disabled,.btn:disabled,.digit:disabled{opacity:.4;cursor:default}.tool,.btn,.digit{box-shadow:var(--raised)}.tool:not(:disabled):active,.btn:not(:disabled):active,.digit:not(:disabled):active{box-shadow:var(--pressed)}.tool:disabled,.btn:disabled,.digit:disabled{box-shadow:none}.btn.primary{background:var(--primary);color:var(--primary-ink)}.tool:focus-visible,.btn:focus-visible,.digit:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.pad{width:var(--size);grid-template-columns:repeat(9,1fr);gap:4px;display:grid}.digit{font:inherit;background:var(--btn);color:var(--user);cursor:pointer;border:0;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;min-height:48px;padding:4px 0;display:flex}.digit .d{font-size:22px;font-weight:600;line-height:1}.digit .left{color:var(--muted);min-height:13px;font-size:11px}.overlay{z-index:5;background:#00000073;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.overlay[hidden]{display:none}.dialog{background:var(--dialog);color:var(--ink);text-align:center;border-radius:14px;flex-direction:column;gap:10px;max-width:360px;padding:20px 24px;display:flex;position:relative;box-shadow:0 10px 40px #00000059}.dialog h2{margin:0;font-size:22px}.dialog p{margin:0}.dialog .muted{color:var(--muted);font-size:14px}.dialog .row{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.close{color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:24px;position:absolute;top:6px;right:8px}@media (max-height:520px) and (min-aspect-ratio:1){#app{--size:min(calc(100dvh - 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