Futuristic Robot Lottie Animation

I need a looping Lottie animation in which a sleek, futuristic-looking AI robot methodically stacks colourful bricks to build the word “stact.” The sequence begins with an empty stage; the robot assembles the first letter brick-by-brick, then slides to the next position and repeats until the full five-letter logo stands proudly. The palette must stay bright and vibrant so the finished piece pops on both white and dark UI themes. Please give the scene an animated backdrop—subtle moving circuitry, light pulses, or any tech-inspired motion that enhances the action without stealing focus from the robot and the bricks. Create the artwork and motion in After Effects (or a tool you prefer) and export through Bodymovin so I receive a lightweight .json Lottie file ready for web and mobile use. Deliverables • Optimised Lottie (.json) file, loop enabled • Source project file for future edits • Optional trimmed or paused-on-end variant if file size allows Acceptance criteria • Smooth 60 fps playback with no jitter on iOS, Android, and modern browsers • File size small enough for instant load over 4G (target <150 KB) • Colours and timing exactly match the “bright & vibrant / futuristic / animated background” brief If any clarification is needed on motion style, timing, or colour values, let me know early so we can lock it down quickly.