fix(ui): 10 regression fixes from new design pass
- Nav: always visible glass background (no more transparent-on-top)
- Logo: remove text span, kill link underline completely
- Masonry: fix HTML class drift (gallery-grid -> masonry-grid)
- Gallery captions: rename to grid-item-label (hover-only)
- Honeypot: rename to hp-field (was rendered visible!)
- Hero: stronger gradient + text-shadow on h1/tag/meta
- LAGE features: cards with pin icon, no more bulleted list
- Map: full-viewport-width break-out from .lage-section
- Contact form: border-radius, focus glow, custom select arrow,
working .form-submit button style
- Light text: unified --text-muted-on-dark token (replaces 4 magic
white-XX% variants + --stone on .fact-label)
- A11y test: update honeypot class assertion
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