Notification & Toast Design

Help me design notifications/toasts for my product. WHAT EVENTS TRIGGER THEM: [[EVENTS]] PRODUCT TYPE: [[PRODUCT]] Deliver: 1. Notification types and the right pattern for each (toast, banner, inline, badge, modal) 2. When to interrupt vs stay passive 3. Content rules: what happened + what to do next, kept short 4. Duration, dismissal, and stacking behavior 5. Severity styling (success/info/warning/error) and accessibility (not color-only) 6. How to avoid notification fatigue Respect the user's attention.Copy