One-take product-launch UI film morphing from prompt bar to toast

GOAL: Ask me for: a one-word product name for the wordmark, one accent color, and a royalty-free track around 120 BPM (e.g. MOTION: Mixkit, free for commercial use). Product-launch UI motion in one continuous take. One shape tells the whole story: a prompt bar becomes a button, the button becomes a progress ring, the ring becomes a preview window, the window fills the screen, then shrinks into a toast and back into the prompt bar. No cuts, no fades between scenes: objects transform. A cursor triggers every change with real clicks. Warm off-white canvas, black UI, one accent color, Inter for UI and the wordmark. Springs everywhere with only a slight overshoot. Zoom the camera so each moment fills the square. Banned: crossfades, gradients on UI, particles, glows, bouncy easing, dead beats, anything that feels like a template. 120 BPM, 24 beats, something happens on every beat. Type the request into the prompt bar → click send → the bar collapses into a black circle → a progress ring fills in four steps while four chips spring out (concept, storyboard, motion, sound) → the chips fly into a timeline and the circle becomes a preview window → a playhead sweeps the clips → inside the preview an orbit draws itself, a planet starts moving and the wordmark rises letter by letter from a mask line → the preview fills the screen → the letters drop away, the planet flies into a toast and becomes its checkmark → "Rendered in code · 60 fps" → the toast turns back into an empty prompt bar. Last frame = first frame. 1. One HTML file with a 1440x1440 canvas. Draw everything inside seek(t): no CSS transitions, timers or state carried between frames. 2. Use closed-form spring step responses. When a value changes target several times, add one spring per change so it stays a pure function of time. 3. The main shape is one rounded rect whose width, height, radius, position and color are each a chain of springs. 4. Typing is derived from time: characters shown = floor(progress × length), with a caret that blinks only when idle. 5. Find the beat grid of the track, start on a downbeat and place every click, pop and chime on its measured peak. 6. Render with Playwright at 60 fps, then encode H.264 CRF 16 and loudnorm to -14 LUFS. 7. Render one still per beat first. Fix anything cramped, off-grid or hard to read before the full render. Text inside a morphing shape needs its own clip and separate enter/exit timing. Text swaps need their own fade so they never overlap. The cursor must end at the exact position it started, or the loop will stutter. Ask me for the inputs, then show me the beat map and 4 stills (prompt, progress, preview, toast) before writing the full film.