The pulsing red rectangle becomes a standing fire: a glowing gradient bar seated on the wall line, five tongues of flame licking on staggered beats, and embers drifting off the top. Pure CSS on a handful of shapes - no turbulence filters, which stay budgeted for the one-shot Fireball, since firewalls burn indefinitely. Vertical walls flame just as well as horizontal ones; reduced motion stills the fire but keeps it visible. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0138A8CjeQRpvzKxuMfz1Bqc