mermaid
stateDiagram
    direction LR

    classDef activeState fill:#f9f,stroke:#333,stroke-width:2px
    classDef inactiveState fill:#fff,stroke:#333,stroke-width:2px

    [*] --> LoggedOut:::inactiveState
    LoggedOut --> LoggedIn
    LoggedIn --> OrderPlaced
    OrderPlaced --> OutForDelivery
    OutForDelivery --> Delivered
    Delivered --> LoggedIn
    LoggedIn --> LoggedOut