:root,:root[data-theme=dark]{color-scheme:dark;--bg-primary: #0a0a0f;--bg-secondary: #151520;--bg-tertiary: #1a1a28;--bg-elevated: #252535;--accent-primary: #ff6b35;--accent-secondary: #ff8c5a;--accent-tertiary: #ff4d1a;--text-primary: #ffffff;--text-secondary: #b8b8c8;--text-muted: #888898;--border-color: #2a2a3a;--border-accent: #ff6b35;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(255, 107, 53, .3);--shadow-tile: 0 4px 12px rgba(0, 0, 0, .3);--tile-text-shadow: 0 1px 2px rgba(0, 0, 0, .5);--header-bg: rgba(10, 10, 15, .95);--board-bg: rgba(21, 21, 32, .6);--cell-bg: rgba(21, 21, 32, .3);--cell-filled-bg: rgba(37, 37, 53, .5)}:root[data-theme=light]{color-scheme:light;--bg-primary: #f4f4f8;--bg-secondary: #ffffff;--bg-tertiary: #ececf2;--bg-elevated: #ffffff;--accent-primary: #ff6b35;--accent-secondary: #ff8c5a;--accent-tertiary: #ff4d1a;--text-primary: #1c1c28;--text-secondary: #4a4a5c;--text-muted: #74748a;--border-color: #d6d6e0;--border-accent: #ff6b35;--shadow-sm: 0 2px 8px rgba(20, 20, 40, .08);--shadow-md: 0 4px 16px rgba(20, 20, 40, .1);--shadow-lg: 0 8px 32px rgba(20, 20, 40, .12);--shadow-glow: 0 0 20px rgba(255, 107, 53, .25);--shadow-tile: 0 4px 12px rgba(20, 20, 40, .12);--tile-text-shadow: none;--header-bg: rgba(255, 255, 255, .92);--board-bg: rgba(255, 255, 255, .65);--cell-bg: rgba(20, 20, 40, .04);--cell-filled-bg: rgba(255, 255, 255, .8)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);color:var(--text-primary);height:100vh;overflow:hidden;transition:background .2s ease,color .2s ease}#root{height:100%;width:100%}.MathJax,.MathJax_CHTML,.MathJax_SVG{display:inline!important}mjx-container{display:inline-block!important}mjx-container mjx-math{letter-spacing:-.02em}mjx-mo{padding-left:.05em!important;padding-right:.05em!important}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}select option{background:var(--bg-elevated);color:var(--text-primary);padding:8px}select optgroup{background:var(--bg-secondary);color:var(--text-secondary);font-weight:600}