Complete visual redesign via a single centralized design system in
src/index.css (no JSX/logic changes; all existing class selectors kept
1:1, so all ~20 pages restyle at once): blackened-steel dark palette,
molten-ember accent with heat glow, blueprint-grid + grain background,
Saira Condensed / Hanken Grotesk / JetBrains Mono web fonts, staggered
load animations, reduced-motion fallback. README written from stub.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
