The Deep Feed — Color Tokens

Primary palette:
  --cream      #f6f1e7   Primary paper background
  --charcoal   #1a1612   Primary type, ink
  --accent     #e63946   Editorial red (light mode)
  --accent-dk  #ef4d5d   Editorial red (dark mode)
  --bg-dark    #0f1219   Dark mode background
  --fg-dark    #e8eaed   Dark mode foreground

Rule: only ONE saturated color (editorial red) per surface. All other
accents are charcoal, sand, or cream tints.
