Same bug as cuidecar/cccb43a: \`overscroll-behavior: none\` applied to
the universal selector killed wheel events on every overflow:hidden
container on the page — hero, demo-dashboard, cta, surfaces, anything
with rounded cards. Combined with the mesh-stream overflow-y-auto
(fixed in 701516b) this was double-trapping the wheel.
Move the rule from \`*\` to \`html\`, change to \`overscroll-behavior-y\`.
Still prevents rubber-band chaining at the document level, but lets
wheel events propagate naturally through nested overflow containers.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>