This area chart displays Olympic medal totals by country, with a smooth, curved line connecting the data points over a categorical x-axis. The visualization uses D3 v5, importing functions like `area`, `curveBasis`, `scaleBand`, and `scaleLinear` to construct the SVG path. The chart is rendered with a turquoise fill and includes axis labels and a title, with data loaded from a CSV file hosted on GitHub. The y-axis is scaled to the maximum medal count, while grid lines extend across the plot area.