Prompt pattern
Move background layers slower than the text
A small speed difference between layers suggests depth without dizziness.
Fills the motion part of a prompt.
Move the background image at roughly 70 percent of the scroll speed of the text above it, so the page feels layered. Keep the offset under 100px across the whole section, never move text this way, and switch it off under reduced motion or on touch devices.
Use this motion pattern when it changes the result the agent should produce. It provides one concrete direction without deciding unrelated parts of the website.