@import"https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap";:root{font-family:JetBrains Mono,Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;--bg-color-light: #ffffff;--text-color-light: #000000;--border-color-light: #000000;--secondary-text-light: #666666;--accent-bg-light: #f9f9f9;--accent-border-light: #cccccc;--bg-color-dark: #1a1a1a;--text-color-dark: #ffffff;--border-color-dark: #ffffff;--secondary-text-dark: #cccccc;--accent-bg-dark: #2a2a2a;--accent-border-dark: #555555;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}:root{--bg-color: var(--bg-color-dark);--text-color: var(--text-color-dark);--border-color: var(--border-color-dark);--secondary-text: var(--secondary-text-dark);--accent-bg: var(--accent-bg-dark);--accent-border: var(--accent-border-dark)}[data-theme=dark]{--bg-color: 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svg{width:24px;height:24px}.play-pause-btn:hover{background:var(--text-color);color:var(--bg-color)}.volume-control{position:relative}.volume-control-panel{display:flex;align-items:center;gap:16px;width:100%;justify-content:center}.volume-slider-inline{display:flex;align-items:center;gap:12px;flex:1}.volume-label{font-size:12px;color:var(--text-color);font-family:JetBrains Mono,monospace;white-space:nowrap}.volume-value{font-size:12px;color:var(--secondary-text);font-family:JetBrains Mono,monospace;min-width:35px;text-align:right}.volume-slider{flex:1;min-width:120px;height:4px;background:var(--accent-border);outline:none;cursor:pointer;-webkit-appearance:none;appearance:none}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;background:var(--text-color);border:1px solid var(--border-color);cursor:pointer}.volume-slider::-moz-range-thumb{width:16px;height:16px;background:var(--text-color);border:1px solid 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var(--accent-border)}.chess-square-4p:hover{background:var(--accent-border)}.chess-square-invalid{background-color:transparent}.chess-piece{aspect-ratio:1;position:absolute;cursor:pointer}.chess-piece.disabled{opacity:.6;cursor:not-allowed}.chess-piece.selected{filter:brightness(1.3) drop-shadow(0 0 10px rgba(255,255,0,.8))}.move{background-color:#282;opacity:.3;aspect-ratio:1;position:absolute}.cooldown-overlay{pointer-events:none}:root{--bg-color-light: #ffffff;--text-color-light: #000000;--border-color-light: #000000;--secondary-text-light: #666666;--accent-bg-light: #f9f9f9;--accent-border-light: #cccccc;--bg-color-dark: #1a1a1a;--text-color-dark: #ffffff;--border-color-dark: #ffffff;--secondary-text-dark: #cccccc;--accent-bg-dark: #2a2a2a;--accent-border-dark: #555555}[data-theme=dark],:root{--bg-color: var(--bg-color-dark);--text-color: var(--text-color-dark);--border-color: var(--border-color-dark);--secondary-text: var(--secondary-text-dark);--accent-bg: 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var(--accent-border);pointer-events:none}.header{text-align:center;margin-bottom:60px;border-bottom:1px solid var(--border-color);padding-bottom:30px}.title{font-size:3rem;font-weight:700;margin-bottom:15px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-color)}.tagline{font-size:1rem;font-weight:400;color:var(--secondary-text);margin:0;letter-spacing:.05em}.main{text-align:center;margin-bottom:40px}.button-group{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}.footer{border-top:1px solid var(--border-color);padding-top:20px}@media (max-width: 768px){.landing-page{height:auto;min-height:100vh}.container{padding:20px;margin:10px}.title{font-size:2rem}.tagline{font-size:.9rem}.button-group{flex-direction:column;align-items:center}}@media (max-width: 480px){.title{font-size:1.5rem}.container{padding:15px}}.info-modal 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var(--accent-border);pointer-events:none}.action-buttons{display:flex;flex-direction:column;gap:15px}.action-btn{width:100%;justify-self:stretch}.game-settings{border:2px solid var(--border-color);padding:25px;background:var(--bg-color);position:relative}.game-settings:before{content:"";position:absolute;inset:-2px;border:1px solid var(--accent-border);pointer-events:none}.settings-content{display:flex;flex-direction:column;gap:20px}.setting-item{display:flex;align-items:center;gap:10px}.setting-label{font-weight:500;letter-spacing:.05em;display:flex;align-items:center;gap:8px;cursor:pointer}.setting-checkbox{appearance:none;-webkit-appearance:none;-moz-appearance:none;width:auto;height:auto;border:none;background:transparent;cursor:pointer;font-family:JetBrains Mono,Courier New,monospace;font-size:1rem;color:var(--text-color);position:relative}.setting-checkbox:before{content:"[ 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