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monospace;--pz-drop:0 1px 1px #00000080, 0 18px 40px -22px #000000e6;--pz-drop-hi:0 1px 1px #00000080, 0 26px 52px -24px #000000f2;--pz-frame:0 0 0 1px #f5a6234d, 0 0 30px -10px #f5a62347, 0 24px 50px -30px #000000e6;--pz-frame-win:0 0 0 1px #4ade808c, 0 0 40px -8px #4ade804d, 0 24px 50px -30px #000000e6;--pz-frame-lose:0 0 0 1px #fb718580, 0 0 40px -10px #fb71853d, 0 24px 50px -30px #000000e6;--pz-cta-bg:linear-gradient(135deg, #2dd4bf, #14b8a6 55%, #0f9a8a);--pz-cta-glow:0 10px 24px -14px #14b8a6cc;--pz-cta-glow-hi:0 16px 32px -16px #14b8a6e6;--pz-score-fill:linear-gradient(180deg, #ffc35c 6%, #f5a623 60%, #e08c0c);--pz-aura:radial-gradient(70rem 44rem at 50% -12%, #14b8a60d, transparent 62%);--pz-knight:url("data:image/svg+xml;utf8,<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 45 45\" fill=\"none\" stroke=\"%234ade80\" stroke-width=\"1.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 10c10.5.5 16.5 8 16 29H15c0-9 10-6.5 8-21\"/><path d=\"M24 18c.38 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[data-pz-shell]{--pz-void:#f6f6f4;--pz-glass:#fff;--pz-glass-hi:#fff;--pz-solid:#fff;--pz-solid-hi:#fff;--pz-edge:#1717171a;--pz-sheen:#1717171f;--pz-sheen-end:#1717170f;--pz-fill:#17171709;--pz-fill-2:#1717170e;--pz-fill-3:#1717172e;--pz-track:#1717171f;--pz-well:#1717170a;--pz-zebra:transparent;--pz-veil:#1e1e1c73;--pz-ink:#18181b;--pz-dim:#52525b;--pz-mute:#8b8b93;--pz-faint:#1717172e;--pz-icon-idle:#17171738;--pz-gold:#e8930c;--pz-gold-hi:#c87a05;--pz-tint:#e8930c1a;--pz-tint-line:#e8930c66;--pz-pulse:#e8930c47;--pz-on-accent:#fff;--pz-teal:#0d9488;--pz-teal-hi:#0b7f75;--pz-teal-tint:#0d948814;--pz-teal-line:#0d948852;--pz-on-teal:#fff;--pz-win:#16a34a;--pz-win-ring:#16a34a24;--pz-win-bg:#16a34a12;--pz-win-line:#16a34a59;--pz-win-glow:#16a34a73;--pz-lose:#dc2626;--pz-lose-bg:#dc26260f;--pz-lose-line:#dc26264d;--pz-user-ink:#15803d;--pz-chip-a-bg:#16a34a14;--pz-chip-a-bg-hi:#16a34a26;--pz-chip-a-line:#16a34a47;--pz-chip-a-ink:#15803d;--pz-chip-b-bg:#0d948814;--pz-chip-b-line:#0d948842;--pz-chip-b-ink:#0f766e;--pz-tag-user-bg:#16a34a1a;--pz-tag-user-ink:#15803d;--pz-blur:none;--pz-figure:ui-monospace, monospace;--pz-drop:0 1px 2px #1717170a, 0 8px 20px -16px #17171759;--pz-drop-hi:0 1px 3px #1717170f, 0 14px 28px -18px #17171766;--pz-frame:0 0 0 1px #e8930c52, 0 10px 26px -20px #17171780;--pz-frame-win:0 0 0 1px #16a34a8c, 0 0 0 4px #16a34a14, 0 10px 26px -20px #17171780;--pz-frame-lose:0 0 0 1px #dc262680, 0 0 0 4px #dc262612, 0 10px 26px -20px #17171780;--pz-cta-bg:linear-gradient(135deg, #14b8a6, #0d9488 55%, #0b7f75);--pz-cta-glow:0 8px 18px -12px #0d948899;--pz-cta-glow-hi:0 14px 26px -14px #0d9488b3;--pz-score-fill:linear-gradient(180deg, #f5a623 6%, #e8930c 60%, #c87a05);--pz-aura:radial-gradient(70rem 44rem at 50% -12%, #0d94880b, transparent 62%);--pz-knight:url("data:image/svg+xml;utf8,<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 45 45\" fill=\"none\" stroke=\"%2316a34a\" stroke-width=\"1.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 10c10.5.5 16.5 8 16 29H15c0-9 10-6.5 8-21\"/><path d=\"M24 18c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.04-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.00 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.99-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.99 2.5-3c1 0 1 3 1 3\"/></svg>");--pz-grain:url("data:image/svg+xml;utf8,<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"120\" height=\"120\"><filter id=\"n\"><feTurbulence type=\"fractalNoise\" baseFrequency=\"0.9\" numOctaves=\"3\"/><feColorMatrix type=\"saturate\" values=\"0\"/></filter><rect width=\"120\" height=\"120\" filter=\"url(%23n)\" opacity=\"0.035\"/></svg>");--pz-grain-op:.25}[data-pz-shell]{min-height:34rem;color:var(--pz-ink);background-color:var(--pz-void);background-image:var(--pz-aura);position:relative}[data-pz-shell]:before{content:"";z-index:0;pointer-events:none;opacity:var(--pz-grain-op);background-image:var(--pz-grain);position:absolute;inset:0}[data-pz-shell]>*{z-index:1;position:relative}main:has(>[data-pz-shell]){flex-direction:column;display:flex}main:has(>[data-pz-shell])>[data-pz-shell]{flex:1 0 auto}[data-pz-shell] .pz-glass{isolation:isolate;background:var(--pz-glass);box-shadow:var(--pz-drop);-webkit-backdrop-filter:var(--pz-blur);border-radius:.85rem;transition:box-shadow .3s,transform .3s,background-color .3s;position:relative}[data-pz-shell] .pz-glass:before{content:"";z-index:-1;border-radius:inherit;background:linear-gradient(160deg, var(--pz-sheen), var(--pz-edge) 38%, var(--pz-sheen-end));-webkit-mask-composite:xor;pointer-events:none;padding:1px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000 0 0),linear-gradient(#000 0 0);mask-image:linear-gradient(#000 0 0),linear-gradient(#000 0 0);-webkit-mask-position:0 0,0 0;mask-position:0 0,0 0;-webkit-mask-size:auto,auto;mask-size:auto,auto;-webkit-mask-repeat:repeat,repeat;mask-repeat:repeat,repeat;-webkit-mask-clip:content-box,border-box;mask-clip:content-box,border-box;-webkit-mask-origin:content-box,border-box;mask-origin:content-box,border-box;-webkit-mask-composite:xor;mask-composite:exclude;-webkit-mask-source-type:auto,auto;mask-mode:match-source,match-source}[data-pz-shell] .pz-glass:hover{background:var(--pz-glass-hi);box-shadow:var(--pz-drop-hi)}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){[data-pz-shell] .pz-glass{background:var(--pz-solid)}[data-pz-shell] .pz-glass:hover{background:var(--pz-solid-hi)}}[data-pz-shell] .pz-head{border-bottom:1px solid var(--pz-edge);color:var(--pz-ink);align-items:center;gap:.5rem;margin-bottom:.7rem;padding-bottom:.7rem;font-size:.88rem;font-weight:900;display:flex}[data-pz-shell] .pz-head-icon{font-size:1rem;line-height:1}[data-pz-shell] .pz-kv{align-items:center;gap:.6rem;padding:.3rem 0;font-size:.8rem;display:flex}[data-pz-shell] .pz-kv-key{color:var(--pz-dim);align-items:center;gap:.4rem;font-weight:600;display:flex}[data-pz-shell] .pz-kv-val{color:var(--pz-ink);margin-inline-start:auto;font-weight:800}[data-pz-shell] .pz-kv-val.is-faint{color:var(--pz-mute);font-weight:600}[data-pz-shell] .pz-card-title{color:var(--pz-ink);font-weight:900}[data-pz-shell] .pz-card-line{color:var(--pz-dim)}[data-pz-shell] .pz-card-faint{color:var(--pz-mute)}[data-pz-shell] .pz-id{font-family:var(--pz-figure);color:var(--pz-gold);direction:ltr;unicode-bidi:isolate}[data-pz-shell] .pz-score{font-family:var(--pz-figure);text-align:center;letter-spacing:-.03em;background:var(--pz-score-fill);color:#0000;-webkit-background-clip:text;background-clip:text;font-size:3.6rem;font-weight:900;line-height:1}[data-pz-shell] .pz-level{border:1px solid var(--pz-tint-line);background:var(--pz-tint);color:var(--pz-gold);border-radius:.6rem;align-items:center;gap:.35rem;margin:.8rem auto 0;padding:.4rem .9rem;font-size:.78rem;font-weight:900;display:inline-flex}[data-pz-shell] .pz-score-prov{vertical-align:super;color:var(--pz-gold);-webkit-text-fill-color:var(--pz-gold);font-size:1.4rem}[data-pz-shell] .pz-delta{text-align:center;font-family:var(--pz-figure);direction:ltr;unicode-bidi:isolate;margin-top:.45rem;font-size:1.05rem;font-weight:900}[data-pz-shell] .pz-delta.is-up{color:var(--pz-win)}[data-pz-shell] .pz-delta.is-down{color:var(--pz-lose)}[data-pz-shell] .pz-delta.is-flat{color:var(--pz-mute)}[data-pz-shell] .pz-streak{text-align:center;color:var(--pz-gold);margin-top:.55rem;font-size:.8rem;font-weight:900}[data-pz-shell] .pz-rated{background:var(--pz-fill-3);border-radius:999px;flex:none;width:.55rem;height:.55rem}[data-pz-shell] .pz-rated.is-on{background:var(--pz-win);box-shadow:0 0 0 3px var(--pz-win-ring)}[data-pz-shell] .pz-rated-bar{border-top:1px solid 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.pz-chip-open{background:var(--pz-chip-b-bg);border-color:var(--pz-chip-b-line);color:var(--pz-chip-b-ink)}[data-pz-shell] .pz-rule{border:0;border-top:1px solid var(--pz-edge);margin:.85rem 0}[data-pz-shell] .pz-board-wrap{max-width:600px;padding-bottom:1.35rem;padding-left:1.35rem;position:relative}[data-pz-shell] .pz-board-wrap .cg-wrap{border-radius:.6rem;overflow:hidden}[data-pz-shell] .pz-board-card{box-shadow:var(--pz-frame);transition:box-shadow .4s}[data-pz-shell] .pz-board-wrap coords{opacity:1;color:var(--pz-mute);font-family:inherit;font-size:.68rem;font-weight:800}[data-pz-shell] .pz-board-wrap coords.ranks{align-items:flex-end;width:1rem;top:0;left:-1.2rem}[data-pz-shell] .pz-board-wrap coords.files{text-transform:lowercase;align-items:flex-start;height:1rem;bottom:-1.2rem;left:0}[data-pz-shell] .pz-board-wrap coords.ranks coord{transform:none}html[data-pz-state=solved] [data-pz-shell] .pz-board-card{box-shadow:var(--pz-frame-win)}html[data-pz-state=lost] [data-pz-shell] .pz-board-card,html[data-pz-state=revealed] [data-pz-shell] .pz-board-card{box-shadow:var(--pz-frame-lose)}@keyframes pz-shake{0%,to{transform:translate(0)}20%{transform:translate(-5px)}40%{transform:translate(4px)}60%{transform:translate(-3px)}80%{transform:translate(2px)}}[data-pz-shell] .pz-shake{animation:.34s pz-shake}[data-pz-shell] .pz-toolbar{align-items:center;gap:.3rem;margin-top:.8rem;display:flex}[data-pz-shell] .study-btn{background:var(--pz-fill);border:1px solid var(--pz-edge);min-width:3.4rem;height:2.6rem;color:var(--pz-dim);border-radius:.6rem;transition:background-color .15s,border-color .15s,color .15s}[data-pz-shell] .study-btn:hover:not(:disabled){background:var(--pz-teal-tint);border-color:var(--pz-teal-line);color:var(--pz-teal)}[data-pz-shell] .study-btn:disabled{opacity:.28}[data-pz-shell] .study-btn.pulse{border-color:var(--pz-tint-line);color:var(--pz-gold);animation:1.6s ease-in-out infinite pz-pulse}@keyframes pz-pulse{0%,to{box-shadow:0 0 0 0 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[data-pz-shell] .pz-verdict{background:var(--pz-win-bg);border-color:var(--pz-win);box-shadow:0 0 0 1px var(--pz-win-line), 0 0 22px -4px var(--pz-win-glow), inset 0 0 34px -14px var(--pz-win-glow);animation:2.4s ease-in-out infinite pz-neon}html[data-pz-state=solved] [data-pz-shell] .pz-verdict:after{content:"";inset-inline-end:.6rem;pointer-events:none;opacity:.22;background:var(--pz-knight) center / contain no-repeat;width:5.5rem;height:5.5rem;position:absolute;top:50%;transform:translateY(-50%)}@keyframes pz-neon{0%,to{box-shadow:0 0 0 1px var(--pz-win-line), 0 0 22px -4px var(--pz-win-glow), inset 0 0 34px -14px var(--pz-win-glow)}50%{box-shadow:0 0 0 1px var(--pz-win), 0 0 32px -2px var(--pz-win-glow), inset 0 0 44px -12px var(--pz-win-glow)}}html[data-pz-state=lost] [data-pz-shell] .pz-verdict,html[data-pz-state=revealed] [data-pz-shell] .pz-verdict{background:var(--pz-lose-bg);border-color:var(--pz-lose-line);box-shadow:0 0 18px -8px var(--pz-lose)}[data-pz-shell] 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