Animated Glass Sphere Eye with GROK Text Video Prompt

Clear glass sphere in a black void; inside: single human eye facing camera. 0.0–0.2s lids closed. 0.2–0.8s open; iris shifts teal→deep red. 0.5–0.8s tiny luminous 'GROK' appears strictly inside the pupil (width ≤6% of pupil diameter, thin weight) then fades by 1.0s. 1.0–3.4s iris returns to teal, calm micro-motion. 3.4–3.8s blink; iris flashes deep red on reopen. 5.4–6.0s slow close to red; match opening frames for a seamless loop. Camera: single smooth micro-orbit ≤8° with slight push-in. Lighting: soft overhead key, subtle back rim, light internal haze. Negative: large/overlay text, letters on iris or sphere, letters >6% pupil diameter, text outside pupil, jittery camera, motion blur on letter moment, chromatic aberration, heavy bloom, logos, watermark. Settings: type video, duration 6s, fps 24, aspect ratio 9:16, resolution 1080x1920, loop true.