:root{--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--space-12: 3rem;--font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.25rem;--font-size-xl: 1.5rem;--radius-sm: 4px;--radius-md: 8px;--color-text: #1a1a1a;--color-text-muted: #6b6b6b;--color-bg: #f5f1ea;--color-surface: #ffffff;--color-border: #d4cfc6;--color-accent: #6b3410;--color-danger: #b91c1c}.stack-2{display:flex;flex-direction:column;gap:var(--space-2)}.stack-4{display:flex;flex-direction:column;gap:var(--space-4)}.row-2{display:flex;gap:var(--space-2);align-items:center}.row-4{display:flex;gap:var(--space-4);align-items:center}.center{display:flex;align-items:center;justify-content:center}.muted{color:var(--color-text-muted)}.mono{font-family:var(--font-mono)}.board{--board-frame: #6b3410;--board-bg: #d2b48c;--point-a: #e8c89a;--point-b: #4a2511;--bar: #2c1810;--bar-fg: #d4a574;--checker-white: #f4ead5;--checker-white-stroke: #c9b58a;--checker-black: #2a1810;--checker-black-stroke: #5c3a20;--dice-face: #f9f6f0;--dice-pip: #1a1a1a;--highlight-legal: rgba(80, 200, 120, .45);--highlight-selected: rgba(255, 200, 80, .6)}html,body{margin:0;padding:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);font-size:var(--font-size-base);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}