:root{--bg: #f6f7fb;--surface: #ffffff;--text: #1c1f26;--muted: #6b7280;--line: #d4d8e1;--line-strong: #1c1f26;--accent: #3b5bdb;--accent-soft: #dbe4ff;--peer: #eef1f8;--claimed: #3b5bdb;--wrong: #e03131;--wrong-soft: #ffe3e3;color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #14161c;--surface: #1d2028;--text: #e8eaf0;--muted: #9aa1b1;--line: #353a47;--line-strong: #aab1c2;--accent: #7b96f5;--accent-soft: #2a3560;--peer: #232734;--claimed: #8fa8ff;--wrong: #ff6b6b;--wrong-soft: #4a2228}}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}button,select{font:inherit;color:inherit;touch-action:manipulation}.app{--board: min(100vw - 32px, 520px, 100dvh - 260px);width:var(--board);min-width:280px;margin:0 auto;padding:max(12px,env(safe-area-inset-top)) 0 max(16px,env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px}.message{padding-top:40vh;text-align:center;color:var(--muted)}.status{display:flex;justify-content:space-between;align-items:flex-end}.stat{display:flex;flex-direction:column;gap:2px}.stat .label{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.stat .figure{font-size:1.25rem;font-weight:600;font-variant-numeric:tabular-nums}.strikes{align-items:flex-end}.strike{display:inline-block;width:1.5em;text-align:center;color:var(--line);font-weight:800}.strike.hit{color:var(--wrong);animation:strike-in .3s ease-out}@keyframes strike-in{0%{transform:scale(2)}}.play{position:relative}.board{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));grid-template-rows:repeat(9,minmax(0,1fr));width:100%;aspect-ratio:1;border:2px solid var(--line-strong);border-radius:6px;overflow:hidden;background:var(--surface)}.cell{position:relative;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0;overflow:hidden;padding:0;border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);cursor:pointer;font-size:calc(var(--board) / 15);outline:none}.cell:nth-child(9n){border-right:0}.cell:nth-last-child(-n+9){border-bottom:0}.cell.box-right{border-right:2px solid var(--line-strong)}.cell.box-bottom{border-bottom:2px solid var(--line-strong)}.cell.peer{background:var(--peer)}.cell.same .value{font-weight:600}.cell.selected{background:var(--accent-soft);box-shadow:inset 0 0 0 2px var(--accent)}.value{line-height:1}.value.given{font-weight:400}.value.claimed{color:var(--claimed);font-weight:400;animation:claim .26s ease-out}@keyframes claim{0%{transform:scale(1.5);opacity:.3}}.value.pending{color:var(--muted);animation:pending .7s ease-in-out infinite alternate}@keyframes pending{to{opacity:.35}}.value.wrong{color:var(--wrong);font-weight:600;animation:shake .4s ease-in-out}.cell:has(.value.wrong){background:var(--wrong-soft)}@keyframes shake{20%,60%{transform:translate(-12%)}40%,80%{transform:translate(12%)}}.notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:repeat(3,minmax(0,1fr));width:100%;height:100%;padding:2px}.note{display:flex;align-items:center;justify-content:center;font-size:calc(var(--board) / 38);line-height:1;color:var(--muted)}.note.focus{color:var(--accent);font-weight:700}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border-radius:6px;background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);text-align:center}.overlay h2{margin:0;font-size:2rem}.overlay p{margin:0 0 12px;color:var(--muted)}.pad{display:flex;flex-direction:column;gap:8px}.digits{display:grid;grid-template-columns:repeat(9,1fr);gap:4px}.digit{aspect-ratio:3 / 4;max-height:64px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-size:calc(var(--board) / 16);font-weight:500;cursor:pointer}.digit:active:not(:disabled){background:var(--accent-soft)}.digit.done{opacity:.3}.notes-mode .digit{border-style:dashed;border-color:var(--accent);color:var(--accent);font-size:calc(var(--board) / 22)}.tools{display:grid;grid-template-columns:1fr 1fr;gap:8px}.tool{display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;border:1px solid var(--line);border-radius:8px;background:var(--surface);cursor:pointer}.mode{display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:2px;min-height:44px;border:1px solid var(--line);border-radius:8px;background:var(--peer)}.segment{display:flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer}.segment.active{background:var(--surface);color:var(--accent);font-weight:600;box-shadow:0 1px 3px #00000026}kbd{padding:1px 5px;border:1px solid var(--line);border-radius:4px;font:.75rem ui-monospace,monospace;color:var(--muted)}@media(pointer:coarse){kbd{display:none}}button:disabled{cursor:default;opacity:.5}.primary{padding:10px 24px;border:0;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}.settings{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:.875rem;color:var(--muted)}.puzzle-id{display:flex;align-items:center;gap:8px}.puzzle-id code{font:600 .9375rem ui-monospace,monospace;letter-spacing:.08em;color:var(--text);user-select:text;-webkit-user-select:text}.notice{margin:0;font-size:.875rem;color:var(--muted);text-align:center}.link{border:0;background:none;color:var(--accent);cursor:pointer;padding:8px 0}