:root{--sk-frame: #b7a483;--sk-rule-thick: #bfad8b;--sk-rule-thin: #e6dcc7;--sk-cell: #fdfaf1;--sk-given-bg: #f4edda;--sk-paper: #f6efdd;--sk-ink: #2c2620;--sk-entry: #2f5fa8;--sk-pencil: #a2937a;--sk-peer: #efe7d2;--sk-same: #f3e2ad;--sk-sel-bg: #f7e6ac;--sk-sel-ring: #d9b44a;--sk-conflict: #cf4636;--sk-conflict-bg: #f7ddd4;--sk-glow: rgba(216, 178, 94, .55);--sk-board-shadow: 0 1px 2px rgba(60, 46, 20, .1), 0 10px 26px rgba(60, 46, 20, .12);--sk-num-font: "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", Georgia, serif}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--sk-frame: #46566b;--sk-rule-thick: #465569;--sk-rule-thin: #2b3644;--sk-cell: #232d3b;--sk-given-bg: #1d2632;--sk-paper: #1a222d;--sk-ink: #eee4d2;--sk-entry: #83b2ef;--sk-pencil: #8492a3;--sk-peer: #29323f;--sk-same: #33405a;--sk-sel-bg: #3a4459;--sk-sel-ring: #d3b061;--sk-conflict: #f2836f;--sk-conflict-bg: #472f2c;--sk-glow: rgba(211, 176, 97, .5);--sk-board-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 30px rgba(0, 0, 0, .45)}}:root[data-theme=dark]{--sk-frame: #46566b;--sk-rule-thick: #465569;--sk-rule-thin: #2b3644;--sk-cell: #232d3b;--sk-given-bg: #1d2632;--sk-paper: #1a222d;--sk-ink: #eee4d2;--sk-entry: #83b2ef;--sk-pencil: #8492a3;--sk-peer: #29323f;--sk-same: #33405a;--sk-sel-bg: #3a4459;--sk-sel-ring: #d3b061;--sk-conflict: #f2836f;--sk-conflict-bg: #472f2c;--sk-glow: rgba(211, 176, 97, .5);--sk-board-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 30px rgba(0, 0, 0, .45)}*{box-sizing:border-box;margin:0;padding:0}html,body{min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none;touch-action:manipulation}#app{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px}.game{width:min(94vw,460px,calc((100dvh - 340px) / 1.2));min-width:288px;display:flex;flex-direction:column;gap:14px}.crumb{font-size:14px}.crumb a{color:var(--accent);text-decoration:none;font-weight:700}.crumb a:hover{text-decoration:underline}.topbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}.title{font-family:var(--sk-num-font);font-size:clamp(32px,9.5vw,50px);font-weight:700;line-height:1;letter-spacing:-.5px;color:var(--sk-ink)}.scores{display:flex;gap:8px}.score-box{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:6px 12px;text-align:center;min-width:66px;box-shadow:inset 0 1px #ffffff40}.score-box .label{font-size:10px;text-transform:uppercase;letter-spacing:1.4px;opacity:.7;font-weight:700}.score-box .value{font-size:20px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--sk-ink)}.diffbar{display:flex;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:4px}.diff{flex:1;border:none;background:transparent;color:var(--text);font-size:14px;font-weight:700;padding:8px 4px;border-radius:7px;cursor:pointer;transition:background .14s ease,color .14s ease,box-shadow .14s ease}.diff:hover{background:var(--line)}.diff.active{background:var(--accent);color:var(--accent-text);box-shadow:0 1px 3px #3c2e1433}.board{position:relative;width:100%}.sgrid{display:grid;grid-template-columns:repeat(9,1fr);width:100%;aspect-ratio:1 / 1;background:var(--sk-cell);border:2px solid var(--sk-frame);border-radius:12px;overflow:hidden;gap:0;box-shadow:var(--sk-board-shadow)}.scell{position:relative;background:var(--sk-cell);display:flex;align-items:center;justify-content:center;cursor:pointer;user-select:none;-webkit-user-select:none;font-variant-numeric:tabular-nums;border-right:1px solid var(--sk-rule-thin);border-bottom:1px solid var(--sk-rule-thin);transition:background-color .13s ease}.scell:nth-child(9n+3),.scell:nth-child(9n+6){border-right:2px solid var(--sk-rule-thick)}.scell:nth-child(n+19):nth-child(-n+27),.scell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--sk-rule-thick)}.scell:nth-child(9n){border-right:none}.scell:nth-child(n+73){border-bottom:none}.scell .val{font-family:var(--sk-num-font);font-size:clamp(19px,5.6vw,28px);font-weight:600;line-height:1;color:var(--sk-entry);transition:color .13s ease}.scell.given{background:var(--sk-given-bg);cursor:default}.scell.given .val{color:var(--sk-ink);font-weight:700}.scell.peer{background:var(--sk-peer)}.scell.given.peer{background:color-mix(in srgb,var(--sk-peer) 70%,var(--sk-given-bg))}.scell.same{background:var(--sk-same)}.scell.same .val{font-weight:800}.scell.selected{background:var(--sk-sel-bg);box-shadow:inset 0 0 0 2px var(--sk-sel-ring)}.scell.conflict{background:var(--sk-conflict-bg)}.scell.conflict .val{color:var(--sk-conflict)}.scell.selected.conflict{background:color-mix(in srgb,var(--sk-conflict-bg) 78%,var(--sk-conflict) 22%);box-shadow:inset 0 0 0 2px var(--sk-conflict)}.scell .notes{display:none;position:absolute;inset:7%;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);pointer-events:none}.scell.has-notes .notes{display:grid}.scell .notes i{display:flex;align-items:center;justify-content:center;font-style:normal;font-size:clamp(8px,2.1vw,11px);line-height:1;color:var(--sk-pencil);font-weight:600}.pad{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.num{aspect-ratio:1 / 1;border:1px solid var(--line);background:var(--surface);color:var(--sk-ink);font-family:var(--sk-num-font);font-size:clamp(20px,6vw,27px);font-weight:700;border-radius:10px;cursor:pointer;box-shadow:inset 0 1px #ffffff40,0 1px 2px #3c2e1414;transition:filter .13s ease,background .13s ease,transform 80ms ease,box-shadow .13s ease}.num:hover{background:var(--line)}.num:active{transform:scale(.94);box-shadow:inset 0 1px 3px #3c2e142e}.num.erase{font-family:inherit;font-size:clamp(18px,5vw,22px);color:var(--text)}.num.done{opacity:.3}.controls{display:flex;align-items:center;justify-content:space-between;gap:10px}.btn{background:var(--accent);color:var(--accent-text);border:none;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap;box-shadow:0 1px 3px #3c2e142e;transition:filter .13s ease,box-shadow .13s ease}.btn:hover{filter:brightness(1.05)}.btn:active{filter:brightness(.95)}.btn.ghost{background:var(--surface);color:var(--text);border:1px solid var(--line);box-shadow:none}.btn.ghost.active{background:var(--accent);color:var(--accent-text);border-color:transparent}.how{font-size:13px;opacity:.85;line-height:1.5}.how b{font-weight:700;color:var(--sk-ink)}.overlay{position:absolute;inset:0;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:20px;background:var(--overlay-bg);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:10;opacity:0;pointer-events:none;overflow:hidden;transition:opacity .22s ease}.overlay.show{opacity:1;pointer-events:auto}.overlay.show .msg{animation:solvedPop .38s ease}@keyframes solvedPop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.08);opacity:1}to{transform:scale(1);opacity:1}}.overlay.over:before{content:"";position:absolute;inset:-40%;background:linear-gradient(115deg,transparent 38%,var(--sk-glow) 50%,transparent 62%);transform:translate(-120%);animation:solvedShimmer 1.6s ease .12s 1;pointer-events:none}@keyframes solvedShimmer{0%{transform:translate(-120%);opacity:0}20%{opacity:1}to{transform:translate(120%);opacity:0}}.board:has(.overlay.over) .sgrid{box-shadow:var(--sk-board-shadow),0 0 0 2px var(--sk-glow),0 0 34px var(--sk-glow);transition:box-shadow .3s ease}.overlay .msg{font-family:var(--sk-num-font);font-size:clamp(30px,9vw,46px);font-weight:700;color:var(--sk-ink);position:relative}.overlay .sub{font-size:16px;color:var(--text);opacity:.9;font-variant-numeric:tabular-nums;position:relative}.overlay .actions{display:flex;gap:10px;margin-top:8px;position:relative}@media(prefers-reduced-motion:reduce){.overlay.show .msg{animation:none}.overlay.over:before{animation:none;display:none}}@media(max-width:390px){.game{gap:12px}.pad{gap:6px}}