:root{--chess-black-piece-filter:brightness(1);--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#3b82f6;--accent-bg:rgba(59,130,246,0.14);--accent-2:#14b8a6;--shadow:rgba(0,0,0,0.1) 0 10px 15px -3px,rgba(0,0,0,0.05) 0 4px 6px -2px;--sans:system-ui,"Segoe UI",Roboto,sans-serif;--heading:system-ui,"Segoe UI",Roboto,sans-serif;--mono:ui-monospace,Consolas,monospace;--notation-visible-rows:9;--notation-thead-row-h:38px;--notation-tbody-row-h:34px;--notation-body-pad-y:20px;--notation-body-min-height:calc(var(--notation-body-pad-y) + var(--notation-thead-row-h) + var(--notation-visible-rows) * var(--notation-tbody-row-h) + 20px - 26px);--notation-slot-chrome:58px;--notation-slot-height:calc(var(--notation-body-min-height) + var(--notation-slot-chrome));font:18px/145% var(--sans);letter-spacing:.18px;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;@media (max-width:1024px){font-size:16px}}:root[data-theme=dark]{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#2563eb;--accent-bg:rgba(37,99,235,0.2);--accent-2:#0f766e;--shadow:rgba(0,0,0,0.4) 0 10px 15px -3px,rgba(0,0,0,0.25) 0 4px 6px -2px;--chess-black-piece-filter:drop-shadow(0 0 1px rgba(255,255,255,0.92)) drop-shadow(0 0 5px rgba(255,255,255,0.28))}@media (prefers-color-scheme:dark){:root[data-theme=system]{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#2563eb;--accent-bg:rgba(37,99,235,0.2);--accent-2:#0f766e;--shadow:rgba(0,0,0,0.4) 0 10px 15px -3px,rgba(0,0,0,0.25) 0 4px 6px -2px;--chess-black-piece-filter:drop-shadow(0 0 1px rgba(255,255,255,0.92)) drop-shadow(0 0 5px rgba(255,255,255,0.28))}}*,:after,:before{box-sizing:border-box}#root{width:100%;max-width:1126px;margin:0 auto;min-height:100dvh}body{margin:0;background:var(--bg);background-image:radial-gradient(1200px 700px at 14% 8%,color-mix(in oklab,var(--accent) 14%,transparent) 0,transparent 58%),radial-gradient(980px 640px at 88% 18%,color-mix(in oklab,var(--accent-2) 10%,transparent) 0,transparent 62%);background-size:auto,auto;background-position:0 0,0 0;background-repeat:no-repeat,no-repeat;background-attachment:fixed,fixed;background-blend-mode:normal,normal}@media (max-width:1024px){:root{--mobile-board-max-edge:calc(100dvh - 72px - max(16px, env(safe-area-inset-bottom, 0px)) - 12px - 72px)}body,html{height:100%;overflow:hidden}#root{height:100%;min-height:100dvh;max-height:100dvh;display:flex;flex-direction:column}}h2{font-family:var(--heading);font-weight:500;color:var(--text-h);font-size:24px;line-height:118%;letter-spacing:-.24px;margin:0 0 8px;@media (max-width:1024px){font-size:20px}}p{margin:0}