An animated sunrise and sunset scene rendered entirely with SVG. A radial gradient fills the sky with color that shifts from aliceblue to indigo, while a sun circle moves vertically through the frame using the SVG `<animate>` element. Two curved landscape paths use linear gradients that also animate their color stops, transitioning from aliceblue to midnightblue. The example demonstrates SVG fundamentals, including gradients, paths, and declarative animation, with all motion driven by the `attributeName` and `values` attributes.