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0%,transparent 78%,rgba(212,255,78,.7) 79%,rgba(212,255,78,.7) 100%)}.trainer-v2 cg-board square.selected{background-color:#d4ff4e38;outline:2px solid rgba(212,255,78,.9);outline-offset:-2px}.trainer-v2 cg-board square.check{background:radial-gradient(ellipse at center,#ff6e63e6,#ff6e6399 30%,#ff6e6300 75%)}.trainer-v2 cg-board square.cg-feedback-correct{background-color:#d4ff4e8c!important;background-image:none!important;box-shadow:inset 0 0 0 3px #d4ff4ef2;animation:v2-cg-pulse .7s ease-out forwards}.trainer-v2 cg-board square.cg-feedback-wrong{background-color:#ff6e638c!important;background-image:none!important;box-shadow:inset 0 0 0 3px #ff6e63f2;animation:v2-cg-pulse .7s ease-out forwards}@keyframes v2-cg-pulse{0%{opacity:.4}18%{opacity:1}to{opacity:1}}.trainer-v2 .cg-wrap coords{font-family:JetBrains Mono Variable,JetBrains Mono,ui-monospace,monospace;font-size:9px;font-weight:600;letter-spacing:.06em;opacity:.65}.trainer-v2 .cg-wrap coords.ranks coord{color:#4b5360}.trainer-v2 .cg-wrap coords.files coord{color:#bac1cc}.trainer-v2 .v2-sq.light{background:var(--v2-sq-light)}.trainer-v2 .v2-sq.dark{background:var(--v2-sq-dark)}.trainer-v2 .v2-sq .v2-coord{position:absolute;font-family:JetBrains Mono Variable,JetBrains Mono,ui-monospace,monospace;font-size:9px;font-weight:600;letter-spacing:.06em;opacity:.55;pointer-events:none}.trainer-v2 .v2-sq.light .v2-coord{color:#4b5360}.trainer-v2 .v2-sq.dark .v2-coord{color:#bac1cc}.trainer-v2 .v2-sq .v2-coord.file{bottom:2px;right:3px}.trainer-v2 .v2-sq .v2-coord.rank{top:2px;left:3px}.trainer-v2 .v2-sq.last.light{background:var(--v2-sq-last-light)}.trainer-v2 .v2-sq.last.dark{background:var(--v2-sq-last-dark)}.trainer-v2 .v2-sq.correct:after,.trainer-v2 .v2-sq.wrong:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;animation:v2-dest-pulse .7s ease-out forwards}.trainer-v2 .v2-sq.correct:after{background:#d4ff4e8c;box-shadow:inset 0 0 0 3px #d4ff4ef2}.trainer-v2 .v2-sq.wrong:after{background:#ff6e638c;box-shadow:inset 0 0 0 3px #ff6e63f2}@keyframes v2-dest-pulse{0%{opacity:0;transform:scale(.7)}18%{opacity:1;transform:scale(1.06)}60%{opacity:.95;transform:scale(1)}to{opacity:0;transform:scale(1)}}.trainer-v2 .v2-sq .v2-dest-dot{width:30%;height:30%;border-radius:999px;pointer-events:none}.trainer-v2 .v2-sq.light .v2-dest-dot{background:#1e222a38}.trainer-v2 .v2-sq.dark .v2-dest-dot{background:#14181e47}.trainer-v2 .v2-sq.selected{outline:3px solid var(--v2-chartreuse);outline-offset:-3px}.trainer-v2 .v2-piece{width:92%;height:92%;background-size:contain;background-repeat:no-repeat;background-position:center;filter:drop-shadow(0 2px 2px rgba(0,0,0,.35));pointer-events:none;z-index:1}.trainer-v2 .v2-capture-ring{position:absolute;top:0;right:0;bottom:0;left:0;box-shadow:inset 0 0 0 3px #d4ff4eb3;pointer-events:none}.trainer-v2 .v2-stamp{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;pointer-events:none;animation:v2-stamp .76s cubic-bezier(.2,.7,.3,1) forwards;z-index:10}.trainer-v2 .v2-stamp-chip{display:flex;align-items:center;gap:12px;padding:10px 18px;border-radius:2px;font-family:JetBrains Mono Variable,JetBrains Mono,ui-monospace,monospace;font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0e1115d1}.trainer-v2 .v2-stamp-chip.ok{color:var(--v2-chartreuse);box-shadow:inset 0 0 0 1px #d4ff4e80}.trainer-v2 .v2-stamp-chip.bad{color:var(--v2-coral);box-shadow:inset 0 0 0 1px #ff6e6380}.trainer-v2 .v2-stamp-glyph{font-size:18px;line-height:1}@keyframes v2-stamp{0%{opacity:0;transform:translateY(6px)}15%{opacity:1;transform:translateY(0)}75%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-4px)}}.trainer-v2 .v2-slide-in{animation:v2-slide .32s cubic-bezier(.2,.8,.2,1) both}@keyframes v2-slide{0%{opacity:0;transform:translate(16px)}to{opacity:1;transform:translate(0)}}.trainer-v2 .v2-sparkbar{display:flex;gap:2px}.trainer-v2 .v2-sparkbar>div{flex:1;height:100%;border-radius:1px}.trainer-v2 .v2-bookbar{position:absolute;inset:0 auto 0 0;background:linear-gradient(90deg,#d4ff4e24,#d4ff4e05);pointer-events:none}.trainer-v2 .v2-scroll::-webkit-scrollbar{width:6px;height:6px}.trainer-v2 .v2-scroll::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.trainer-v2 .v2-scroll::-webkit-scrollbar-track{background:transparent}.trainer-v2 kbd{font-family:JetBrains Mono Variable,JetBrains Mono,ui-monospace,monospace;font-size:10px;padding:2px 6px;border-radius:3px;background:#ffffff0f;color:var(--v2-bone-200);box-shadow:inset 0 -1px #0000004d;border:1px solid rgba(255,255,255,.06)}.trainer-v2 .v2-pill{display:inline-flex;align-items:center;gap:6px;font-family:JetBrains Mono Variable,JetBrains Mono,ui-monospace,monospace;font-size:10px;padding:2px 7px;border-radius:999px;letter-spacing:.08em;text-transform:uppercase}.trainer-v2 .v2-pill.book{background:#d4ff4e14;color:var(--v2-chartreuse);box-shadow:inset 0 0 0 1px #d4ff4e4d}.trainer-v2 .v2-pill.engine{background:#6fb3ff14;color:var(--v2-sky);box-shadow:inset 0 0 0 1px #6fb3ff4d}.trainer-v2 .v2-pill.offbook{background:#ffb34714;color:var(--v2-amber);box-shadow:inset 0 0 0 1px #ffb3474d}.trainer-v2 .v2-pill.wrong{background:#ff6e6314;color:var(--v2-coral);box-shadow:inset 0 0 0 1px #ff6e634d}.trainer-v2 .v2-pill.ghost{background:#ffffff0a;color:var(--v2-bone-200);box-shadow:inset 0 0 0 1px #ffffff14}.trainer-v2 .v2-breadcrumb{display:inline-flex;align-items:center;gap:8px;font-family:JetBrains Mono Variable,JetBrains Mono,ui-monospace,monospace;font-size:11px;color:var(--v2-bone-300)}.trainer-v2 .v2-breadcrumb .arrow{color:var(--v2-bone-400)}.trainer-v2 .v2-breadcrumb .tip{color:var(--v2-violet)}.trainer-v2 .v2-hover-row:hover{background:#ffffff08}.trainer-v2 button:focus-visible,.trainer-v2 input:focus-visible,.trainer-v2 select:focus-visible,.trainer-v2 [tabindex]:focus-visible{outline:1px solid var(--v2-chartreuse);outline-offset:2px}@property --v3-bg-page{syntax: "<color>"; inherits: true; initial-value: #14110C;}:root{--ink-950: #0D0B08;--ink-900: #14110C;--ink-850: #181510;--ink-800: #1A160F;--ink-700: #211C13;--ink-600: #2c2318;--parchment-50: #F5ECD6;--parchment-100: #f1e7cf;--parchment-200: #E2D5A8;--parchment-300: #c8b37e;--parchment-400: #C9B88A;--parchment-500: #6f5f3f;--parchment-600: #8B7A56;--parchment-800: #4D4534;--board-light: #C9A37A;--board-dark: #7A5A3A;--board-frame: #261D14;--mem-frame: #1a1815;--board-last-move: rgba(255, 207, 64, .35);--board-selected: rgba(255, 255, 255, .18);--board-check: rgba(220, 64, 48, .45);--board-premove: rgba(140, 64, 220, .3);--board-legal-dot: rgba(255, 255, 255, .18);--board-capture-ring: rgba(255, 255, 255, .22);--feedback-correct: rgba(143, 165, 130, .55);--feedback-wrong: rgba(184, 80, 72, .55);--gold-100: #f5dfa3;--gold-300: #E2BC6A;--gold-300-rgb: 226 188 106;--gold-300-soft: rgba(226, 188, 106, .1);--gold-500: #c89a4f;--steel-300: #6B94B8;--steel-300-rgb: 107 148 184;--sage-500: #8FA582;--crimson-500: #B85048;--sage: #7a9070;--crimson: #a4423c;--cb-blue: #0072B2;--cb-sky-blue: #56B4E9;--cb-orange: #D55E00;--cb-green: #009E73;--cb-yellow: #F0E442;--cb-vermillion: #CC2C0F;--eco-a: #8E7DBE;--eco-b: #D08770;--eco-c: #5E81AC;--eco-d: #A3BE8C;--eco-e: #EBCB8B;--bg-page: var(--ink-900);--bg-surface: var(--ink-800);--bg-elevated: var(--ink-700);--bg-inset: var(--ink-950);--fg-primary: var(--parchment-50);--fg-secondary: var(--parchment-200);--fg-tertiary: var(--parchment-400);--fg-disabled: var(--parchment-800);--border-subtle: rgba(226, 188, 106, .06);--border-default: rgba(226, 188, 106, .12);--border-emphasized: rgba(226, 188, 106, .24);--kbd-highlight: rgba(245, 236, 214, .04);--accent-primary: var(--gold-300);--accent-on-primary: var(--ink-900);--accent-engine: var(--steel-300);--feedback-correct-fg: var(--sage-500);--feedback-wrong-fg: var(--crimson-500);--font-sans: "Inter Variable", "Inter", system-ui, sans-serif;--font-serif: "Fraunces Variable", "Fraunces", Georgia, serif;--font-mono: "JetBrains Mono Variable", "JetBrains Mono", ui-monospace, monospace;--font-display: var(--font-serif);--text-xs: 11px;--text-sm: 12px;--text-base: 14px;--text-md: 16px;--text-lg: 18px;--text-xl: 22px;--text-2xl: 28px;--text-3xl: 36px;--text-4xl: 48px;--text-5xl: 64px;--fs-ledger: clamp(11px, .78vw, 15px);--fs-micro: clamp(12px, .85vw, 17px);--fs-body: clamp(15px, 1vw, 20px);--fs-mono-m: clamp(13px, .95vw, 18px);--fs-display-xs: clamp(18px, 1.3vw, 28px);--fs-display-s: clamp(20px, 1.6vw, 34px);--fs-display-m: clamp(22px, 1.9vw, 40px);--fs-display-l: clamp(26px, 2.2vw, 52px);--fs-display-xl: clamp(28px, 2.6vw, 64px);--fs-display-hero: clamp(60px, min(11vw, 18vh), 280px);--fs-display-summary: clamp(56px, 9vw, 140px);--fs-display-stat: clamp(52px, 6.8vw, 180px);--fs-page-title: clamp(44px, 6.5vw, 180px);--ls-ledger: .32em;--ls-tracked: .18em;--ls-wide: .04em;--ls-tight: -.035em;--ls-tightest: -.045em;--fvs-body: "opsz" 24, "SOFT" 40, "WONK" 0, "wght" 380;--fvs-body-italic: "opsz" 32, "SOFT" 80, "WONK" 0, "wght" 360;--fvs-list-row: "opsz" 48, "SOFT" 80, "WONK" 1, "wght" 380;--fvs-display-hero: "opsz" 144, "SOFT" 90, "WONK" 1, "wght" 360;--fvs-display: "opsz" 144, "SOFT" 80, "WONK" 1, "wght" 360;--fvs-display-italic: "opsz" 144, "SOFT" 100, "WONK" 1, "wght" 400;--fvs-display-bold: "opsz" 144, "SOFT" 100, "WONK" 1, "wght" 420;--fvs-handle-input: "opsz" 60, "SOFT" 80, "WONK" 1, "wght" 380;--fvs-stat-number: "opsz" 120, "SOFT" 60, "WONK" 1, "wght" 300;--fvs-book-move: "opsz" 72, "SOFT" 100, "WONK" 1, "wght" 420;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-14: 56px;--space-20: 80px;--space-30: 120px;--page-gutter: clamp(24px, 4vw, 96px);--radius-sm: 2px;--radius-md: 4px;--radius-lg: 8px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-board: 0 24px 64px -32px rgba(0, 0, 0, .6);--shadow-ledger: 0 1px 0 0 rgba(226, 188, 106, .14);--shadow-sunken: inset 0 0 0 1px rgba(226, 188, 106, .12);--duration-fast: .12s;--duration-base: .2s;--duration-slow: .4s;--duration-feedback: .45s;--ease-standard: cubic-bezier(.2, 0, 0, 1);--ease-emphasized: cubic-bezier(.3, 0, 0, 1);--dur-rise: .78s;--ease-rise: cubic-bezier(.16, 1, .3, 1);--v3-bg-page: #14110C;--v3-bg-page-tint: #181510;--v3-bg-card: rgba(245, 236, 214, .045);--v3-bg-card-hi: rgba(245, 236, 214, .075);--v3-bg-card-lo: rgba(245, 236, 214, .025);--v3-bg-inset: rgba(0, 0, 0, .32);--v3-bg-chip: rgba(245, 236, 214, .06);--v3-fg-1: #E6DCC8;--v3-fg-2: rgba(230, 220, 200, .78);--v3-fg-3: rgba(230, 220, 200, .55);--v3-fg-4: rgba(230, 220, 200, .36);--v3-fg-5: rgba(230, 220, 200, .22);--v3-pos: #8FA582;--v3-pos-soft: rgba(143, 165, 130, .18);--v3-pos-text: #A8BB9C;--v3-neg: #C2766F;--v3-neg-soft: rgba(194, 118, 111, .18);--v3-neg-text: #D4928C;--v3-warn: #D9B66E;--v3-warn-soft: rgba(217, 182, 110, .16);--v3-warn-text: #E2C685;--v3-engine: #7E9DB8;--v3-accent: #E2BC6A;--v3-accent-soft: rgba(226, 188, 106, .14);--v3-accent-text: #F2D38B;--v3-r-sm: 8px;--v3-r-md: 14px;--v3-r-lg: 20px;--v3-r-xl: 28px;--v3-shadow-card: 0 1px 0 0 rgba(245, 236, 214, .04) inset, 0 0 0 1px rgba(245, 236, 214, .04);--v3-shadow-card-hi: 0 1px 0 0 rgba(245, 236, 214, .08) inset, 0 0 0 1px rgba(245, 236, 214, .08), 0 24px 60px -28px rgba(0, 0, 0, .6);--bg-card: var(--v3-bg-card);--bg-card-hi: var(--v3-bg-card-hi);--bg-card-lo: var(--v3-bg-card-lo);--bg-chip: var(--v3-bg-chip);--fg-1: var(--v3-fg-1);--fg-2: var(--v3-fg-2);--fg-3: var(--v3-fg-3);--fg-4: var(--v3-fg-4);--fg-5: var(--v3-fg-5);--accent: var(--v3-accent);--accent-soft: var(--v3-accent-soft);--accent-text: var(--v3-accent-text);--pos: var(--v3-pos);--pos-soft: var(--v3-pos-soft);--neg: var(--v3-neg);--neg-soft: var(--v3-neg-soft);--warn: var(--v3-warn);--warn-soft: var(--v3-warn-soft);--engine: var(--v3-engine);--r-sm: var(--v3-r-sm);--r-md: var(--v3-r-md);--r-lg: var(--v3-r-lg);--r-xl: var(--v3-r-xl);--shadow-card: var(--v3-shadow-card);--shadow-card-hi: var(--v3-shadow-card-hi)}.tnum{font-variant-numeric:tabular-nums slashed-zero}.surface{background:linear-gradient(180deg,var(--v3-bg-card-hi),var(--v3-bg-card-lo));border-radius:var(--v3-r-lg);box-shadow:var(--v3-shadow-card)}.surface-hi{background:linear-gradient(180deg,var(--v3-bg-card-hi) 0%,var(--v3-bg-card) 100%);border-radius:var(--v3-r-lg);box-shadow:var(--v3-shadow-card-hi)}.divider-soft{height:1px;background:linear-gradient(90deg,transparent,rgba(245,236,214,.07) 20%,rgba(245,236,214,.07) 80%,transparent)}.row-sep>*+*{background-image:linear-gradient(to right,transparent 0,rgba(245,236,214,.05) 24px,rgba(245,236,214,.05) calc(100% - 24px),transparent 100%);background-repeat:no-repeat;background-size:100% 1px;background-position:top}.segmented{display:inline-flex;background:var(--v3-bg-inset);border-radius:999px;padding:3px;gap:2px}.segmented button{background:transparent;border:0;color:var(--v3-fg-2);padding:6px 14px;border-radius:999px;font-size:12px;font-weight:500;letter-spacing:0;cursor:pointer;transition:all .18s cubic-bezier(.2,0,0,1);font-family:inherit}.segmented button[aria-pressed=true]{background:#f5ecd614;color:var(--v3-fg-1);box-shadow:0 1px #f5ecd60f}.wdl-bar{display:flex;height:4px;border-radius:999px;overflow:hidden;background:var(--v3-bg-inset)}.wdl-bar>div:first-child{background:var(--v3-pos)}.wdl-bar>div:nth-child(2){background:var(--v3-fg-4)}.wdl-bar>div:last-child{background:var(--v3-neg)}@keyframes lift{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.lift{animation:lift .32s cubic-bezier(.2,0,0,1) both}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}.pulse-dot{animation:pulse-dot 1.4s ease-in-out infinite}[data-theme=cb]{--accent-primary: var(--cb-blue);--accent-on-primary: #FFFFFF;--feedback-correct: rgba(0, 114, 178, .55);--feedback-wrong: rgba(213, 94, 0, .55);--feedback-correct-fg: var(--cb-blue);--feedback-wrong-fg: var(--cb-orange);--border-subtle: rgba(0, 114, 178, .06);--border-default: rgba(0, 114, 178, .12);--border-emphasized: rgba(0, 114, 178, .24);--shadow-ledger: 0 1px 0 0 rgba(0, 114, 178, .14);--shadow-sunken: inset 0 0 0 1px rgba(0, 114, 178, .12);--gold-300-rgb: 0 114 178;--accent-engine: var(--cb-orange);--v3-accent: var(--cb-blue);--v3-accent-soft: rgba(0, 114, 178, .16);--v3-accent-text: var(--cb-sky-blue);--v3-pos: var(--cb-green);--v3-pos-soft: rgba(0, 158, 115, .18);--v3-pos-text: #4DCAA6;--v3-neg: var(--cb-vermillion);--v3-neg-soft: rgba(204, 44, 15, .18);--v3-neg-text: #E37155;--v3-warn: 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