digraph room_layers {
    bgcolor="#0a0a0a"
    rankdir=TB
    fontname="Helvetica"
    node [fontname="Helvetica" fontsize=10 style=filled color="#333" fontcolor="#e5e5e5" shape=record]
    edge [fontname="Helvetica" fontsize=9 fontcolor="#a3a3a3" color="#666"]

    label="Room Layers — init wizard"
    labelloc=t
    fontsize=14
    fontcolor="#d4a574"

    l0 [label="{Layer 0 | Config + Data | config.json · data/*.json}" fillcolor="#1a1a1a" color="#d4a574"]
    l1 [label="{Layer 1 | Docker | soleprint/docker-compose.yml · .env}" fillcolor="#1a1a1a"]
    l2 [label="{Layer 2 | Managed App | docker-compose.yml · Dockerfiles · .env}" fillcolor="#1a1a1a"]
    l3 [label="{Layer 3 | Link | link/main.py · adapters/ · Dockerfile}" fillcolor="#1a1a1a"]
    l4 [label="{Layer 4 | Scripts | ctrl/start.sh · stop.sh · status.sh · logs.sh}" fillcolor="#1a1a1a"]
    l5 [label="{Layer 5 | Systems | tester/environments.json · tests/}" fillcolor="#1a1a1a"]
    l6 [label="{Layer 6 | Nginx | nginx/local.conf · docker-compose.nginx.yml}" fillcolor="#1a1a1a"]

    l0 -> l1 [label="required"]
    l1 -> l2 [label="if managed"]
    l2 -> l3 [label="optional"]
    l1 -> l4 [label="optional"]
    l4 -> l5 [label="optional"]
    l5 -> l6 [label="if frontend"]

    // Annotations
    note_req [label="every room" fillcolor="#0a0a0a" fontcolor="#d4a574" color="#0a0a0a" shape=plaintext fontsize=9]
    note_req -> l0 [style=invis]
}