/* Shared tier color variables for TCM Online
   Define variables named after the tier tag without the leading '#' so
   scripts can read them via getComputedStyle(document.documentElement).
*/
:root{
  --ImmutableConstant: #2222BB;
  --TierPhysics: #3333CC;
  --TierFundamentalExternal: #333333;
  --TierSubstrate: #446644;
  --TierBiology: #558844;
  --TierInterface: #66AA44;
  --TierProcessing: #88CC44;
  --TierHigherCognition: #AAFF44;
  --TierCulturalExternal: #444444;
  --TierRelational: #BB3399;
  --TierSystemic: #0077BB;
}