This scatter plot visualizes the red wine quality dataset, showing the relationship between fixed acidity and alcohol content. Each circle represents a wine sample, colored by its quality rating using a categorical color scale. The visualization uses D3 v6 APIs including `csv`, `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to load and parse the data, scale the values, and render the SVG axes and circles. The plot is responsive to the window size, with axis labels for both variables.