This area chart visualizes the NASDAQ Composite index over time, with a filled teal region under a smoothed curve. The chart uses D3 v5's `area` generator with `curveBasis` for smoothing, along with `scaleTime` and `scaleLinear` for the axes. Data is loaded from a remote CSV file, and tick labels are formatted using the `.1s` format specifier. The SVG rendering includes axis labels and a title, with grid lines styled via CSS.