:root{--paper: #f5f2ec;--paper-deep: #ebe6dc;--ink: #1a1714;--ink-muted: #5c574f;--line: rgba(26, 23, 20, .12);--line-strong: rgba(26, 23, 20, .2);--surface: #fffcf7;--surface-hover: #f7f4ed;--accent: #2a2622;--accent-soft: rgba(42, 38, 34, .08);--danger: #9b3d38;--focus-ring: rgba(42, 38, 34, .35);--dot: rgba(26, 23, 20, .38);--board-grid: rgba(26, 23, 20, .26);--board-border-outer: 2px solid rgba(26, 23, 20, .5);--board-border-region: 2px solid rgba(26, 23, 20, .4);--board-border-inner: 1px solid rgba(26, 23, 20, .16);--font-display: "Fraunces", "Georgia", serif;--font-ui: "DM Sans", system-ui, sans-serif;--ease-out: cubic-bezier(.22, 1, .36, 1);--radius-sm: 10px;--radius-md: 14px;--shadow-board: 0 28px 64px -24px rgba(26, 23, 20, .18), 0 12px 28px -16px rgba(26, 23, 20, .1);color-scheme:only light;font-family:var(--font-ui);line-height:1.5;font-weight:400;color:var(--ink);background-color:var(--paper);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-contrast: more){:root{--line: rgba(26, 23, 20, .28);--line-strong: rgba(26, 23, 20, .42);--dot: rgba(26, 23, 20, .52);--board-grid: rgba(26, 23, 20, .46);--board-border-outer: 3px solid rgba(26, 23, 20, .62);--board-border-region: 3px solid rgba(26, 23, 20, .52);--board-border-inner: 2px solid rgba(26, 23, 20, .32)}}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh;background:var(--paper);background-image:radial-gradient(ellipse 120% 80% at 50% -20%,rgba(255,252,247,.95),transparent 55%),radial-gradient(ellipse 80% 50% at 100% 50%,rgba(235,230,220,.5),transparent 45%)}#root{min-height:100dvh}:focus-visible{outline:2px solid var(--ink);outline-offset:3px}@media (prefers-reduced-motion: 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var(--ease-out)}.queens-btn:hover{background:var(--surface-hover);border-color:var(--ink-muted)}.queens-btn:active{transform:scale(.98)}.queens-main{display:flex;flex-direction:column;align-items:stretch;gap:1.5rem;flex:1;width:100%;min-width:0}.queens-footer{margin-top:auto;padding-top:1.15rem;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.65rem 1.25rem;font-family:var(--font-ui);font-size:.8125rem;line-height:1.45;color:var(--ink-muted)}.queens-footer__credit{margin:0;display:flex;flex-wrap:wrap;align-items:baseline;gap:.35rem .5rem}.queens-footer__name{font-weight:500;color:var(--ink);opacity:.85}.queens-footer__role{font-weight:400;opacity:.92}.queens-footer__role:before{content:"·";margin-right:.5rem;opacity:.55;font-weight:400}.queens-footer__nav{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .2rem}.queens-footer__sep{-webkit-user-select:none;user-select:none;opacity:.45;padding:0 .15rem}.queens-footer__link{color:inherit;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:.18em;padding:.35rem .2rem;margin:-.35rem -.2rem;border-radius:var(--radius-sm);transition:color .16s var(--ease-out),text-decoration-color .16s var(--ease-out)}.queens-footer__link:hover{color:var(--ink);text-decoration-color:#5c574f8c}.queens-footer__link:active{color:var(--ink)}.queens-boards-row{display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%;margin-inline:auto;min-width:0}@media (min-width: 900px){.queens-boards-row{display:grid;align-items:start;justify-items:center;grid-template-columns:minmax(0,1fr) minmax(0,0fr);column-gap:clamp(.75rem,2.2vw,1.75rem);transition:grid-template-columns .42s var(--ease-out, cubic-bezier(.22, 1, .36, 1))}.queens-boards-row--solution-visible{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}.queens-board-cell{display:flex;flex-direction:column;align-items:center;gap:.5rem;width:100%;min-width:0}@media (min-width: 900px){.queens-board-cell{justify-self:stretch}}.queens-board-cell .parent{width:100%;max-width:min(92vw,72vh,560px);transition:max-width .42s var(--ease-out, cubic-bezier(.22, 1, .36, 1))}@media (min-width: 900px){.queens-boards-row--solution-visible .queens-board-cell .parent{max-width:min(100%,72vh,560px)}.queens-boards-row--solution-visible .queens-board-cell{justify-content:flex-start;align-items:center}}.queens-board-solution-cell{width:100%;display:flex;flex-direction:column;align-items:center;overflow:hidden;max-height:0;opacity:0;transform:translateY(12px);transition:max-height .4s var(--ease-out, cubic-bezier(.22, 1, .36, 1)),opacity .32s var(--ease-out, cubic-bezier(.22, 1, .36, 1)),transform .4s var(--ease-out, cubic-bezier(.22, 1, .36, 1));pointer-events:none;will-change:transform,opacity}.queens-boards-row--solution-visible .queens-board-solution-cell{max-height:800px;opacity:1;transform:translateY(0);pointer-events:auto}@media (min-width: 900px){.queens-board-solution-cell{max-height:none;overflow:visible;opacity:0;transform:translate(22px) scale(.93);pointer-events:none;align-self:start;transition:opacity .32s var(--ease-out, cubic-bezier(.22, 1, .36, 1)),transform .4s var(--ease-out, cubic-bezier(.22, 1, .36, 1))}.queens-boards-row--solution-visible .queens-board-solution-cell{opacity:1;transform:translate(0) scale(1);pointer-events:auto}}.queens-solution-inner{display:flex;flex-direction:column;align-items:center;gap:0;width:100%;min-width:0}.queens-reference-frame{display:flex;justify-content:center;width:100%;box-sizing:border-box;padding:3px;border-radius:calc(var(--radius-md) + 3px);background:linear-gradient(155deg,#1a17140d,#1a171405);box-shadow:inset 0 0 0 1px #1a17141a,0 2px 8px #1a17140d}.queens-reference-hint{margin:.4rem 0 0;font-family:var(--font-ui);font-size:.6875rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-muted);opacity:.88}.queens-board-wrap{position:relative;width:100%;display:flex;justify-content:center}.queens-board-wrap--generating:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;pointer-events:none;border-radius:var(--radius-md);background:linear-gradient(165deg,#fffcf733,#ebe6dc8c 45%,#1a171412)}.queens-board-reveal{position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;display:flex;align-items:center;justify-content:center;padding:clamp(.65rem,4vw,1.25rem);border-radius:var(--radius-md);background:#161412c7;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:inset 0 0 0 1px #fffcf70f}.queens-board-reveal__card{max-width:18rem;width:100%;padding:1.2rem 1.35rem 1.3rem;text-align:center;border-radius:calc(var(--radius-md) + 2px);background:#fffcf7f0;box-shadow:0 22px 56px -28px #1a17146b,0 0 0 1px #1a171412,inset 0 1px #ffffffb8}.queens-board-reveal__title{margin:0;font-family:var(--font-display);font-size:1.08rem;font-weight:500;letter-spacing:-.015em;line-height:1.25;color:var(--ink)}.queens-board-reveal__hint{margin:.45rem 0 0;font-family:var(--font-ui);font-size:.8125rem;font-weight:500;line-height:1.45;color:var(--ink-muted)}.queens-board-reveal__cta{margin-top:1rem;width:100%;font-weight:600;background:var(--ink);color:var(--paper);border-color:var(--ink)}.queens-board-reveal__cta:hover{background:#2a2520;border-color:#2a2520;color:var(--paper)}.queens-board-reveal__cta:active{transform:scale(.98)}.queens-board-loader{position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;display:flex;align-items:center;justify-content:center;pointer-events:none;padding:clamp(.65rem,4vw,1.25rem)}.queens-board-loader__card{max-width:17.5rem;padding:1.15rem 1.35rem 1.25rem;text-align:center;border-radius:calc(var(--radius-md) + 2px);background:#fffcf7e0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 22px 56px -28px #1a171459,0 0 0 1px #1a17140f,inset 0 1px #ffffffa6}.queens-board-loader__emblem{position:relative;display:flex;align-items:center;justify-content:center;width:4.75rem;height:4.75rem;margin:0 auto .85rem}.queens-board-loader__orbit{position:absolute;border-radius:50%;border:2px solid transparent;pointer-events:none}.queens-board-loader__orbit--outer{top:0;right:0;bottom:0;left:0;border-top-color:#2a26228c;border-right-color:#2a26221f;animation:queens-loader-orbit 1.15s linear infinite}.queens-board-loader__orbit--inner{top:7px;right:7px;bottom:7px;left:7px;border-bottom-color:#5c574f73;border-left-color:#5c574f1a;animation:queens-loader-orbit-reverse 1.6s linear infinite}.queens-board-loader__title{margin:0;font-family:var(--font-display);font-size:1.05rem;font-weight:500;letter-spacing:-.015em;line-height:1.25;color:var(--ink)}.queens-board-loader__hint{margin:.35rem 0 0;font-family:var(--font-ui);font-size:.75rem;font-weight:500;line-height:1.45;color:var(--ink-muted)}.queens-board-loader__mini-grid{display:grid;grid-template-columns:repeat(3,10px);gap:7px;margin:.95rem auto 0;justify-content:center}.queens-board-loader__mini-cell{width:10px;height:10px;border-radius:3px;background:var(--paper-deep);box-shadow:inset 0 0 0 1px var(--line-strong);animation:queens-loader-cell .72s var(--ease-out) infinite}.queens-board-loader__mini-cell:nth-child(1){animation-delay:0ms}.queens-board-loader__mini-cell:nth-child(2){animation-delay:80ms}.queens-board-loader__mini-cell:nth-child(3){animation-delay:.16s}.queens-board-loader__mini-cell:nth-child(4){animation-delay:.12s}.queens-board-loader__mini-cell:nth-child(5){animation-delay:40ms}.queens-board-loader__mini-cell:nth-child(6){animation-delay:.2s}.queens-board-loader__mini-cell:nth-child(7){animation-delay:.24s}.queens-board-loader__mini-cell:nth-child(8){animation-delay:.16s}.queens-board-loader__mini-cell:nth-child(9){animation-delay:.28s}@keyframes queens-loader-orbit{to{transform:rotate(360deg)}}@keyframes queens-loader-orbit-reverse{to{transform:rotate(-360deg)}}@keyframes queens-loader-cell{0%,to{opacity:.35;transform:scale(.92)}45%{opacity:1;transform:scale(1);background:var(--surface-hover);box-shadow:inset 0 0 0 1px #1a17142e,0 0 0 1px #2a262214}}.queens-btn:disabled,.queens-select:disabled{opacity:.52;cursor:not-allowed;transform:none}.queens-btn:disabled:hover,.queens-select:disabled:hover{background:var(--surface);border-color:var(--line-strong)}.queens-celebration-primary:disabled:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}@media (prefers-reduced-motion: reduce){.queens-board-loader__orbit--outer,.queens-board-loader__orbit--inner{animation:none;opacity:.85}.queens-board-loader__mini-cell{animation:none;opacity:.75}.queens-boards-row,.queens-board-solution-cell,.queens-board-cell .parent{transition:none!important}}.queens-modal-root{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:clamp(1rem,4vw,2rem);background:#1a171473;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}.queens-modal{width:100%;max-width:28rem;max-height:min(85dvh,32rem);overflow:auto;background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-board)}.queens-modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding:1.25rem 1.25rem .75rem;border-bottom:1px solid var(--line)}.queens-modal-title{margin:0;font-family:var(--font-display);font-size:1.375rem;font-weight:500;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}.queens-modal-close{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:44px;height:44px;margin:-.35rem -.35rem 0 0;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--ink-muted);font-size:1.75rem;line-height:1;cursor:pointer;transition:background-color .18s var(--ease-out),color .18s var(--ease-out)}.queens-modal-close:hover{background:var(--accent-soft);color:var(--ink)}.queens-modal-body{padding:1rem 1.25rem 1.35rem}.queens-modal-lead{margin:0 0 1rem;font-size:1rem;line-height:1.5;color:var(--ink)}.queens-modal-list{margin:0 0 1rem;padding-left:1.15rem;color:var(--ink-muted);font-size:.9375rem;line-height:1.55}.queens-modal-list li{margin-bottom:.5rem}.queens-modal-list li:last-child{margin-bottom:0}.queens-modal-list strong{color:var(--ink);font-weight:600}.queens-modal-note{margin:0;font-size:.875rem;line-height:1.55;color:var(--ink-muted)}.queens-modal-note em{font-style:italic;color:var(--ink)}@media (prefers-reduced-motion: reduce){.queens-modal-root{backdrop-filter:none;-webkit-backdrop-filter:none}.queens-celebration-panel{animation:none}.queens-celebration-sparkle{animation:none;opacity:.35}}.queens-celebration-root{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1001;display:flex;align-items:center;justify-content:center;padding:clamp(1rem,4vw,2rem);background:#1a171480;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.queens-celebration-panel{position:relative;width:100%;max-width:22.5rem;padding:2rem 1.75rem 1.75rem;text-align:center;background:linear-gradient(160deg,var(--surface) 0%,#faf7f1 45%,#f3efe6 100%);border:1px solid var(--line-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-board),0 0 0 1px #ffffff80 inset;animation:queens-celebration-in .52s var(--ease-out) both}@keyframes queens-celebration-in{0%{opacity:0;transform:scale(.94) translateY(14px)}to{opacity:1;transform:scale(1) translateY(0)}}.queens-celebration-dismiss{position:absolute;top:.5rem;right:.5rem;display:flex;align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--ink-muted);font-size:1.75rem;line-height:1;cursor:pointer;transition:background-color .18s var(--ease-out),color .18s var(--ease-out)}.queens-celebration-dismiss:hover{background:var(--accent-soft);color:var(--ink)}.queens-celebration-sparkles{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:visible}.queens-celebration-sparkle{position:absolute;left:50%;top:42%;width:4px;height:4px;margin:-2px 0 0 -2px;border-radius:50%;background:#96784673;transform:rotate(calc(var(--sparkle-i) * 36deg)) translateY(-5.5rem);animation:queens-sparkle 1.5s ease-in-out infinite;animation-delay:calc(var(--sparkle-i) * .09s)}@keyframes queens-sparkle{0%,to{opacity:.25;transform:rotate(calc(var(--sparkle-i) * 36deg)) translateY(-5.25rem) scale(.7)}50%{opacity:.85;transform:rotate(calc(var(--sparkle-i) * 36deg)) translateY(-5.75rem) scale(1.15)}}.queens-celebration-icon{width:3.25rem;height:3.25rem;margin:0 auto 1rem;color:#6a6257}.queens-celebration-icon svg{display:block;width:100%;height:100%}.queens-celebration-title{margin:0 0 .6rem;font-family:var(--font-display);font-size:1.625rem;font-weight:500;letter-spacing:-.02em;line-height:1.15;color:var(--ink)}.queens-celebration-time{display:flex;flex-direction:column;align-items:center;gap:.2rem;margin:0 0 1rem}.queens-celebration-time__label{font-size:.6875rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-muted)}.queens-celebration-time__value{font-size:1.5rem;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--ink)}.queens-celebration-text{margin:0 0 1.35rem;font-size:.9375rem;line-height:1.55;color:var(--ink-muted)}.queens-celebration-actions{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}.queens-celebration-primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}.queens-celebration-primary:hover{background:#2e2a26;border-color:#2e2a26;color:var(--paper)}@media (max-width: 640px){.queens-header{grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto auto;column-gap:.5rem;row-gap:.7rem;align-items:center}.queens-header__start{grid-column:1 / 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.child{cursor:default}.parent--generating{pointer-events:none;opacity:.58}.parent--play-locked{pointer-events:none}.parent{display:grid;grid-column-gap:0;grid-row-gap:0;width:100%;max-width:min(92vw,72vh,560px);aspect-ratio:1;margin:0;overflow:hidden;box-shadow:var(--shadow-board);background-color:var(--paper);gap:0;touch-action:manipulation}.child{margin:0;display:flex;justify-content:center;align-items:center;min-width:0;min-height:0;cursor:pointer;transition:filter .15s var(--ease-out)}.child:hover{filter:brightness(.97)}.child--conflict{box-shadow:inset 0 0 0 2px var(--danger)}.dot{width:min(26%,22px);aspect-ratio:1;border-radius:50%;background-color:var(--dot);box-shadow:inset 0 0 0 1px #1a17142e}@media (prefers-reduced-motion: reduce){.child{transition:none}.child:hover{filter:none}}@media (prefers-contrast: more){.child--conflict{box-shadow:inset 0 0 0 3px var(--danger)}.dot{box-shadow:inset 0 0 0 1px #1a171461}}.confetti-layer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1002;pointer-events:none;overflow:hidden}.confetti-piece{position:absolute;top:-12vh;left:var(--left);width:var(--pw);height:var(--ph);background:var(--pc);opacity:.95;animation:confetti-fall var(--duration) linear var(--delay) forwards;will-change:transform}.confetti-piece--ribbon{border-radius:1px}.confetti-piece--rect{border-radius:2px}.confetti-piece--round{border-radius:50%;width:var(--pw);height:var(--pw)}@keyframes confetti-fall{0%{transform:translateZ(0) rotate3d(0,0,1,0)}to{transform:translate3d(var(--drift),120vh,0) rotate3d(1,1,0,var(--spin))}}@media (prefers-reduced-motion: reduce){.confetti-layer{display:none}}