Modularize v2 SCSS into _sass/v2/ partials

Details

Split the 1192-line _sass/v2.scss into 17 focused partials under
_sass/v2/ (tokens, base, typography, sections, nav, hero, db-loading,
hero-scroll, stats, prose, pillars, grids, news, footer, toggles,
reveal, responsive). _sass/v2.scss is now a thin @import manifest.
Partials are contiguous slices in strict source order, so their
in-order concatenation is byte-identical to the original file and the
compiled CSS is unchanged. The manifest uses // comments only, which
Sass strips, so it emits no CSS of its own.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018Z78wTEczDqpD4nqJWKRME

Files changed (18)