:root{--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--bg-color: #f9f9f9;--text-color: #333333;--board-grid-color: rgba(0, 0, 0, .05);--border-radius-base: 12px;--shadow-base: 0 8px 30px rgba(0, 0, 0, .08)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);overflow:hidden;width:100vw;height:100vh}#root{width:100%;height:100%}button{font-family:inherit;cursor:pointer}