**Learning:** The brand color `#667eea` fails WCAG AA contrast (3.4:1) against white backgrounds, affecting accessibility for text headers and primary buttons.
**Action:** Replace `#667eea` with `#4f46e5` (Indigo 600) which passes WCAG AA (5.5:1) while maintaining brand identity. Update all instances including `manifest.json`.
**Learning:** Adding a subtle CSS animation (pulse) to status indicators significantly improves the perception of system liveness and draws attention to critical states without adding visual clutter.
**Action:** Use `.status-pulse` class for "Active" or "Live" status badges to provide immediate visual feedback of system health.
