%%{init: {'theme':'base', 'themeVariables': {'primaryColor':'#1B1B1B','primaryBorderColor':'#D6002A','primaryTextColor':'#fff','secondaryColor':'#fff','secondaryBorderColor':'#D6002A','secondaryTextColor':'#1B1B1B','tertiaryColor':'#F0F0F0','lineColor':'#1B1B1B','fontFamily':'"Helvetica Neue","Arial",sans-serif'}}}%%
flowchart LR
    T1["Sovereign<br/>boundary"]
    T2["Lower autonomous<br/>higher attested"]
    I1["Four-layer<br/>model"]
    I2["HITL<br/>gates"]
    I3["Contract<br/>schema"]
    T1 --> I1
    T1 --> I3
    T2 --> I2
    T2 --> I3
    T1 -.-> T2
    style T1 fill:#1B1B1B,color:#fff,stroke:#D6002A
    style T2 fill:#1B1B1B,color:#fff,stroke:#D6002A
    style I1 fill:#F0F0F0,color:#1B1B1B,stroke:#D6002A
    style I2 fill:#F0F0F0,color:#1B1B1B,stroke:#D6002A
    style I3 fill:#F0F0F0,color:#1B1B1B,stroke:#D6002A