Abstract Presentation Loop

Abstract looping background for a presentation slide: [a slow moving gradient mesh] in [deep indigo], [violet] and [teal], folding and drifting like liquid silk. Very slow continuous motion with no sudden changes, and the last frame matching the first so it repeats seamlessly. Soft focus throughout, subtle grain, the edges a little darker so white text stays readable on top. Camera static. Calm and corporate rather than psychedelic. Duration 10 seconds, aspect ratio 16:9. No text, no hard edged shapes, no flashing, no strobing, no watermark.