This example shows a single interactive button component built with React. The button changes its background color to red when activated, using a boolean class binding that applies the `true` class from a SCSS stylesheet. The component defines a `NavButton` functional component, which imports React and a `style.scss` file, and renders a container with a clickable label. The styling leverages SCSS variables and nested rules to manage the button’s border, radius, and active state, while the container class uses placeholder CSS to define layout. No external data or animation libraries are involved; the behavior is limited to visual state toggling via the class change.