This example demonstrates basic SVG shape rendering in an isolated HTML document. It draws a red circle, a blue diagonal line, and a blue stepped path with a thick stroke. The visualization uses raw SVG elements—`<circle>`, `<line>`, and `<path>`—with explicit coordinate and style attributes, requiring no external libraries or data sources. The rendering approach relies on the browser’s native SVG implementation, as specified in the inline `svg` tag with a 1000×1000 viewport.