Dark editorial timeline on a pinned stage: vertical scroll slides a wide track of milestone screens sideways while a bouncing-ball line draws itself across them, an accent ball with a soft glow riding its head and landing in each chapter as it arrives. Huge outlined years drift slower than the track, photos wipe open with an inner zoom, copy rises from masks, and a rolling year counter and hairline progress bar track the journey. Stacks vertically with a scroll-drawn gutter line on mobile.
