This example visualizes bike sales in India from 2012 to 2022 using a line chart rendered as an SVG. It loads a CSV dataset, parses the year and sales values, and uses `d3.scaleTime` and `d3.scaleLinear` to map the data to axes. The chart draws a single line with `d3.line`, applies grid lines via `axisBottom` and `axisLeft`, and includes labeled axes with custom formatting. The code uses D3 v5 modules imported directly, and styling is applied through an external CSS file.