// Calculate grid indices for world coordinates (0, 0)
const xAxisGridIndex = calculatedGridSize / 2 - offsetX;
const yAxisGridIndex = calculatedGridSize / 2 - 1 - offsetY;

ctx.strokeStyle = '#333';
ctx.lineWidth = 2;

// Draw Y-axis (vertical line at X=0)
if (xAxisGridIndex >= 0 && xAxisGridIndex < calculatedGridSize) {
  const xPos = getCoordinate(xAxisGridIndex, cellSize);
  ctx.beginPath();
  ctx.moveTo(xPos, 0);
  ctx.lineTo(xPos, canvasHeight);
  ctx.stroke();
}

// Draw X-axis (horizontal line at Y=0)
if (yAxisGridIndex >= 0 && yAxisGridIndex < calculatedGridSize) {
  const yPos = getCoordinate(yAxisGridIndex, cellSize);
  ctx.beginPath();
  ctx.moveTo(0, yPos);
  ctx.lineTo(canvasWidth, yPos);
  ctx.stroke();
}