This line chart visualizes temperature readings in San Francisco over a week, using time on the x-axis and temperature on the y-axis. The data, loaded from a CSV via `d3.csv`, is rendered as a smooth path using `d3.line` with `curveBasis`. Axes are generated with `d3.axisBottom` and `d3.axisLeft`, while scales are set via `d3.scaleTime` and `d3.scaleLinear`. The chart includes labeled axes and a title, with styling applied through CSS.