Alert previous pass led with delta ("Behind by $750/mo") but the user
still had to reconcile that with the $1,000/mo CTA — the relationship
between current pace, gap, and required rate was implicit.
Make every number visible in the sentence:
- Title: "Save $1,000/mo to stay on track" — leads with the action +
required rate. Reduces decision load: the headline is what to do.
- Body: "You're saving $250/mo today — $750/mo short of the pace to
finish by September 11, 2026." — current pace + gap + deadline.
User can now mentally verify: $250 + $750 = $1,000. The catch-up
amount in title + body + CTA is no longer disconnected from the
current pace number; the body is the bridge.
Adds `scrollbar` utility (defined in app/assets/tailwind/application.css
as 4px gray-300 thumb) to the contributions list container. Browser-
default scrollbar was rendering as a thick dark bar in light mode on
some OSes; the in-house utility renders a thin gray thumb consistently
across themes.