System Architecture

graph TD
    subgraph "Client Layer"
        WEB["Web App
Next.js + React SSR
🟢 P1"]
        PWA["Mobile / PWA
🔵 P2"]
        NATIVE["Mobile Native iOS/Android
🟣 P3"]
    end
    subgraph "Edge"
        GW["API Gateway
Auth + Rate Limit
🟢 P1"]
        CDN["CDN + Public API
🟣 P3"]
    end
    subgraph "Application Services"
        AUTH["Auth + KYC
🟢 P1"]
        ATS["ATS / Curation
🟢 P1"]
        MATCH["Matching v1 rule-based
🟢 P1"]
        ML["Matching v2 ML-based
🟣 P3"]
        CTR["Contract + Escrow
🟢 P1"]
        COMM["Communication
🟢 P1"]
        POD["Managed Pod Service
🔵 P2"]
        REF["Referral Program
🔵 P2"]
    end
    subgraph "Data Layer"
        PG[("PostgreSQL
🟢 P1")]
        REDIS[("Redis Cache + Queue
🟢 P1")]
        S3[("Object Storage
🟢 P1")]
        DW[("Data Warehouse
🔵 P2")]
    end
    subgraph "External Integrations"
        STRIPE["Stripe Connect MoR
🟢 P1"]
        DEEL["Deel Cross-border
🔵 P2"]
        EMAIL["Email + SMS
🟢 P1"]
        GH["Auto GitHub Scoring
🟣 P3"]
    end
    WEB --> GW
    PWA --> GW
    NATIVE --> CDN
    CDN --> GW
    GW --> AUTH
    GW --> ATS
    GW --> MATCH
    GW --> ML
    GW --> CTR
    GW --> COMM
    GW --> POD
    GW --> REF
    AUTH --> PG
    ATS --> PG
    ATS --> S3
    ATS --> GH
    MATCH --> PG
    MATCH --> REDIS
    ML --> DW
    CTR --> PG
    CTR --> STRIPE
    CTR --> DEEL
    COMM --> REDIS
    COMM --> EMAIL
    POD --> PG
    REF --> PG
    classDef p1 fill:#d1fae5,stroke:#059669,color:#064e3b
    classDef p2 fill:#dbeafe,stroke:#2563eb,color:#1e3a8a
    classDef p3 fill:#f3e8ff,stroke:#7c3aed,color:#581c87
    class WEB,GW,AUTH,ATS,MATCH,CTR,COMM,PG,REDIS,S3,STRIPE,EMAIL p1
    class PWA,POD,REF,DW,DEEL p2
    class NATIVE,CDN,ML,GH p3