Done Part 1

A success badge, 4s loop, centered on a 470×260 stage with a dark #13131C background. Times are seconds from the loop start.
- Always visible: a ring track, radius 77px, 11px stroke, white at 8% opacity.
- 0.4–2.0s: on top of the track, an 11px round-capped arc is drawn clockwise from 12 o'clock until it closes the circle (ease-in-out). Stroke = linear gradient from violet #6E5BFF (top-left) to cyan #38C6FF (bottom-right).
- 2.0–2.2s: a filled circle (radius 82px, same gradient) fades in, with a blue glow (rgba(80,150,255,0.8), blur 47px).
- 2.2–2.5s: a white check mark draws itself (ease-out), 12px stroke, round caps and joins, through these points relative to the center: (−35, 2) → (−10, 27) → (37, −23).
- 2.15–2.6s: the whole badge pops: scale 1 → 1.12 → 1 (half a sine wave).
- 3.6–3.95s: the badge fades out (the track stays), then the loop restarts.