This multi-series line chart shows the daily trends of sales, profit, and expenses over the first half of 2024, applying D3’s `scaleLinear` and `scaleUtc` to map the data. It renders three monotone curves via `d3.line()` and `d3.curveMonotoneX`, using ordinal colors for each series and displaying interactive tooltips on hover. The visualization includes rotated monthly axis ticks, a legend, and axis labels, all drawn as SVG elements.