A self-contained SVG scene depicts a sunrise and sunset cycle over a stylized landscape. A radial gradient animates the sky from aliceblue to indigo, while a circle representing the sun moves downward and back using an `<animate>` element. Two layered landscapes use linear gradients and `<path>` elements with quadratic and cubic Bézier curves, with gradient stops that shift color over time. The visualization relies entirely on native SVG and SMIL animations, with no JavaScript libraries or data sources involved.