This area chart displays the total workout duration for each fitness goal, aggregated from a cleaned CSV dataset. The visualization uses D3.js v7 to load the data, compute sums with `d3.rollup`, and render a smooth monotone area path. A point scale positions goals along the x-axis, while a linear scale maps total durations to the y-axis, with axes and labels generated via `d3.axisBottom` and `d3.axisLeft`. The SVG output features a teal filled area, styled with a white background and minimal margins.