/* Vistamark motion layer (Oct 2026) — loaded after site.css by base.html.
Rules of the road:
- Decorative motion is opt-in through html.vm-motion, which motion.js sets only when the browser
supports IntersectionObserver AND the visitor has not asked for reduced motion. Without JS, or
with reduced motion, every element renders in its final, static state.
- Only opacity and transform are animated; every reveal plays once and lasts under a second.
- Nothing hijacks scrolling. The investment-architecture walkthrough uses position:sticky only.
Bump the ?v= number on the /