Add `overflow-x: clip` to main/section/header/footer/nav so decorative
absolutely-positioned glow elements (dcta-glow, brand-card-glow,
cap-tile-glow) can't bubble their bounds up to body.scrollWidth.
Without this, body extended ~168px past viewport at 360px width,
producing right-side empty gap and horizontal scroll on Android Chrome.
Also stack 2-col grids on narrow viewports in ExclusiveAccessSection,
FounderSection, and IndustryUseCases stats row to prevent cramped
or overflowing content under 640px.
Verified via Playwright at 320/360/375/390/411/414/480 — body.scrollWidth
now equals viewport at all widths.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
