body{margin:0;padding:0;background:#000;overflow:hidden}#root{width:100vw;height:100vh}.game-board{width:90vmin;height:90vmin;display:grid;gap:0;background:#fff;border:none;margin:0}.cell{background:#fff}.cell.snake-head,.cell.snake-body,.cell.food,.cell.obstacle{background:#000}.cell.empty{background:#fff}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;background:#fff;overflow:hidden}.app{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:#fff}