flowchart TB
    subgraph Pages["Pages"]
        P1["Documents.cshtml<br/>+ .cshtml.cs<br/><i>Liste, Suche, Filter, Seiten</i>"]
        P2["Document/Download.cshtml.cs<br/><i>Einzel- und ZIP-Download</i>"]
        P3["Document/Share.cshtml.cs<br/><i>OpenGraph-Vorschau</i>"]
    end

    subgraph Services["Services"]
        S["DocumentsService<br/><i>Auflisten, Filtern, Aufloesen<br/>des Kundenordners</i>"]
        C["S3DocumentsClient<br/><i>Kapselung von IAmazonS3</i>"]
    end

    subgraph Model["Model/Documents"]
        M1["DocumentType<br/><i>Enum + Ableitung<br/>aus Ordnername</i>"]
        M2["DocumentName<br/><i>Anzeigename,<br/>.url-Erkennung</i>"]
        M3["DocumentKey /<br/>RelativePath<br/><i>validierte Pfade</i>"]
        M4["OrgSlug<br/><i>Normalisierung des<br/>Firmennamens</i>"]
        M5["DocumentViewModel"]
    end

    EXT["IAmazonS3<br/>(AWS SDK)"]
    CFG["S3Settings<br/><i>keyed service</i>"]

    P1 --> S
    P2 --> S
    P3 --> S
    S --> C
    S --> M1
    S --> M2
    S --> M4
    S --> M5
    P2 --> M3
    C --> EXT
    C --> CFG

    style S fill:#dae8fc,stroke:#6c8ebf
    style C fill:#dae8fc,stroke:#6c8ebf
    style EXT fill:#f5f5f5,stroke:#999
    style CFG fill:#f5f5f5,stroke:#999