diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..796e108
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,9 @@
+.venv/
+storage/
+.claude-data/
+frontend/node_modules/
+frontend/dist/
+frontend/mock/
+__pycache__/
+.env
+.git/
diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..e4e810b
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,5 @@
+# Auth für die Agenten im Container (eines von beiden):
+# Token aus `claude setup-token` (Claude-Abo)
+CLAUDE_CODE_OAUTH_TOKEN=
+# oder ein API-Key
+ANTHROPIC_API_KEY=
diff --git a/.gitignore b/.gitignore
index 757393e..16541d1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .venv/
 storage/
+.claude-data/
 frontend/node_modules/
 frontend/dist/
 __pycache__/
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..9eed20f
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,31 @@
+# Stage 1: Frontend bauen
+FROM node:20-alpine AS frontend
+WORKDIR /build
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+# Stage 2: Laufzeit (die Claude-Code-CLI bringt das SDK als Binary mit, Node ist nicht nötig)
+FROM python:3.12-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git curl ca-certificates unzip \
+    libpango-1.0-0 libpangoft2-1.0-0 libharfbuzz0b libcairo2 libgdk-pixbuf-2.0-0 libffi8 fonts-dejavu \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m -u 1000 app
+WORKDIR /app
+COPY backend/requirements.txt backend/requirements.txt
+RUN pip install --no-cache-dir -r backend/requirements.txt
+
+COPY backend/ backend/
+COPY prompts/ prompts/
+COPY API.md README.md ./
+COPY --from=frontend /build/dist frontend/dist
+RUN mkdir -p storage && chown -R app:app /app
+
+USER app
+ENV PYTHONUNBUFFERED=1
+EXPOSE 8020
+CMD ["python", "-m", "uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8020"]
diff --git a/README.md b/README.md
index 313fc69..fc42dea 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,18 @@ make build       # Frontend bauen
 make run         # http://localhost:8020
 ```
 
-Auth: der Agent SDK nutzt den Claude-Code-Login des Rechners (oder ANTHROPIC_API_KEY, falls gesetzt).
+Auth lokal: der Agent SDK nutzt den Claude-Code-Login des Rechners (oder ANTHROPIC_API_KEY, falls gesetzt).
+
+Produktion (Docker, Traefik-Netz `web`, https://buchwerk.marha.de):
+
+```bash
+cp .env.example .env      # CLAUDE_CODE_OAUTH_TOKEN eintragen (claude setup-token) oder ANTHROPIC_API_KEY
+make prod                 # docker compose up -d --build
+make logs / make stop
+```
+
+`storage/` und `.claude-data/` (Sitzungen der CLI) werden als Volumes eingebunden; die Claude-Code-CLI
+liegt als Binary im SDK, Node wird im Container nicht gebraucht.
 
 Ablauf (backend/pipeline.py): Stufen seriell, innerhalb einer Stufe bis zu `PARALLEL` Agenten gleichzeitig.
 Jeder Agent arbeitet im Themenverzeichnis `storage/<Thema>/`; sein Abschlussbericht landet unter `berichte/`
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 208daf5..d92feb3 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -3,3 +3,4 @@ fastapi
 uvicorn[standard]
 markdown
 pygments
+weasyprint
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..da9da27
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,24 @@
+services:
+  buchwerk:
+    build:
+      context: .
+    container_name: buchwerk
+    restart: unless-stopped
+    environment:
+      - CLAUDE_CODE_OAUTH_TOKEN=${CLAUDE_CODE_OAUTH_TOKEN:-}
+      - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY:-}
+    networks:
+      - web
+    volumes:
+      - ./storage:/app/storage
+      - ./.claude-data:/home/app/.claude
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.buchwerk.rule=Host(`buchwerk.marha.de`)"
+      - "traefik.http.routers.buchwerk.entrypoints=websecure"
+      - "traefik.http.routers.buchwerk.tls.certresolver=letsencrypt"
+      - "traefik.http.services.buchwerk.loadbalancer.server.port=8020"
+
+networks:
+  web:
+    external: true
diff --git a/frontend/src/markdown.js b/frontend/src/markdown.js
index 1b3e342..a625df2 100644
--- a/frontend/src/markdown.js
+++ b/frontend/src/markdown.js
@@ -44,5 +44,5 @@ export function render(text) {
 
 export function zeit(min) {
   const m = Math.max(1, Math.round(min))
-  return m < 60 ? `~${m} min` : `~${Math.floor(m / 60)} h ${m % 60} min`
+  return m < 60 ? `~${m} min` : m % 60 ? `~${Math.floor(m / 60)} h ${m % 60} min` : `~${Math.floor(m / 60)} h`
 }
diff --git a/frontend/src/style.css b/frontend/src/style.css
index 80f26d1..0c0ea64 100644
--- a/frontend/src/style.css
+++ b/frontend/src/style.css
@@ -136,7 +136,7 @@ a.knopf { display: inline-block; text-decoration: none; line-height: normal; }
 .guide-nav .teil { margin: 14px 0 2px; font: 600 11px system-ui, sans-serif; letter-spacing: 0.08em; text-transform: uppercase; color: var(--dim); }
 
 .lese { flex: 1; overflow-y: auto; background: var(--lese-bg); color: var(--lese-text); }
-.buch { max-width: 68ch; margin: 0 auto; padding: 36px 28px 120px; font-family: "Charter", "Bitstream Charter", "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 1.125rem; line-height: 1.65; hyphens: auto; hyphenate-limit-chars: 8 4 4; }
+.buch { max-width: 68ch; margin: 0 auto; padding: 36px 28px 120px; font-family: "Charter", "Bitstream Charter", "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 1.125rem; line-height: 1.65; hyphens: auto; }
 .buch h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 10px; }
 .buch .untertitel { color: var(--lese-text); font-style: italic; font-size: 1.1rem; margin-bottom: 6px; }
 .buch .meta { color: var(--lese-dim); margin-bottom: 26px; font-size: 0.95rem; }
@@ -148,15 +148,18 @@ a.knopf { display: inline-block; text-decoration: none; line-height: normal; }
 .buch h2 .badge { font: 11.5px system-ui, sans-serif; vertical-align: middle; margin-left: 10px; }
 .buch .kap-meta { color: var(--lese-dim); font-size: 0.85rem; margin-bottom: 14px; }
 .buch .kap-intro { color: var(--lese-text); margin-bottom: 24px; }
-.buch h3 { font-size: 1.22rem; margin: 34px 0 4px; line-height: 1.3; scroll-margin-top: 16px; }
+/* Abschnittstitel (aus dem Template) groß; Zwischenüberschriften aus dem Markdown (###/####) klein */
+.buch section > h3 { font-size: 1.38rem; margin: 44px 0 8px; line-height: 1.3; scroll-margin-top: 16px; }
+.buch section div h3, .buch section div h4, .lm-screen div h3, .lm-screen div h4 { font-size: 1.02rem; margin: 28px 0 4px; line-height: 1.3; }
+.buch section div h4, .lm-screen div h4 { font-style: italic; font-weight: 600; }
 .buch p { margin: 0 0 1em; }
 .buch ul, .buch ol { padding-left: 1.4em; margin: 0 0 1em; }
 .buch li { margin: 0.25em 0; }
-.buch code { font-family: "SF Mono", Consolas, Menlo, monospace; font-size: 0.86em; background: var(--code-bg); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
+.buch code { font-family: "SF Mono", Consolas, Menlo, monospace; font-size: 0.86em; background: color-mix(in srgb, var(--code-bg) 60%, transparent); padding: 0 4px; border-radius: 3px; overflow-wrap: anywhere; hyphens: manual; }
 .buch p, .buch li { overflow-wrap: anywhere; }
-.buch pre { background: var(--code-bg); color: var(--code-fg); padding: 12px 14px; border-radius: 8px; overflow-x: auto; font-size: 0.86em; line-height: 1.5; }
+.buch pre { background: var(--code-bg); color: var(--code-fg); padding: 12px 14px; border-radius: 8px; font-size: 0.86em; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; hyphens: manual; }
 .buch pre code { background: none; padding: 0; }
-.buch table { border-collapse: collapse; margin: 0 0 1em; font-size: 0.92em; display: block; max-width: 100%; overflow-x: auto; }
+.buch table { border-collapse: collapse; margin: 0 0 1em; font-size: 0.92em; display: block; max-width: 100%; overflow-x: auto; hyphens: manual; }
 .buch th, .buch td { border: 1px solid var(--lese-rand); padding: 4px 9px; text-align: left; }
 .buch .hinweis { background: var(--karte); border-radius: 6px; padding: 8px 12px; font-size: 0.85rem; color: var(--dim); font-family: system-ui, sans-serif; margin: 0 0 14px; }
 .buch .teil-titel { font: 600 0.78rem system-ui, sans-serif; letter-spacing: 0.1em; text-transform: uppercase; color: var(--lese-dim); margin: 40px 0 6px; }
@@ -178,7 +181,7 @@ a.knopf { display: inline-block; text-decoration: none; line-height: normal; }
 .lm-kopf .balken i { display: block; height: 100%; background: var(--gruen); }
 .lm-kopf button { background: transparent; color: var(--lese-dim); font-size: 18px; padding: 2px 8px; }
 .lm-buehne { flex: 1; overflow-y: auto; }
-.lm-screen { max-width: 66ch; margin: 0 auto; padding: 40px 28px 80px; font-family: "Charter", "Bitstream Charter", "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 1.15rem; line-height: 1.65; hyphens: auto; hyphenate-limit-chars: 8 4 4; }
+.lm-screen { max-width: 66ch; margin: 0 auto; padding: 40px 28px 80px; font-family: "Charter", "Bitstream Charter", "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 1.15rem; line-height: 1.65; hyphens: auto; }
 .lm-label { font: 600 11.5px system-ui, sans-serif; letter-spacing: 0.08em; text-transform: uppercase; color: var(--lese-dim); margin-bottom: 8px; }
 .lm-screen h1 { font-size: 2.1rem; line-height: 1.2; margin: 0 0 12px; }
 .lm-screen h2 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 6px; }
@@ -186,10 +189,10 @@ a.knopf { display: inline-block; text-decoration: none; line-height: normal; }
 .lm-screen .stats { color: var(--lese-dim); font: 13px system-ui, sans-serif; margin-top: 14px; }
 .lm-screen p { margin: 0 0 1em; }
 .lm-screen code { font-family: "SF Mono", Consolas, monospace; font-size: 0.86em; background: var(--code-bg); padding: 1px 5px; border-radius: 4px; }
-.lm-screen pre { background: var(--code-bg); color: var(--code-fg); padding: 12px 14px; border-radius: 8px; overflow-x: auto; font-size: 0.86em; }
+.lm-screen pre { background: var(--code-bg); color: var(--code-fg); padding: 12px 14px; border-radius: 8px; font-size: 0.86em; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; hyphens: manual; }
 .lm-screen pre code { background: none; padding: 0; }
 .lm-screen ul, .lm-screen ol { padding-left: 1.4em; }
-.lm-screen table { border-collapse: collapse; margin: 0 0 1em; font-size: 0.92em; display: block; max-width: 100%; overflow-x: auto; }
+.lm-screen table { border-collapse: collapse; margin: 0 0 1em; font-size: 0.92em; display: block; max-width: 100%; overflow-x: auto; hyphens: manual; }
 .lm-screen th, .lm-screen td { border: 1px solid var(--lese-rand); padding: 4px 9px; text-align: left; }
 .lm-screen.ende { text-align: center; padding-top: 120px; }
 .lm-fuss { display: flex; justify-content: space-between; padding: 10px 18px; border-top: 1px solid var(--lese-rand); font-family: system-ui, sans-serif; }
@@ -207,10 +210,13 @@ kbd { font: 11px system-ui, sans-serif; border: 1px solid var(--rand); border-ra
   .sidebar:not(.offen) { display: none; }
   .burger { display: inline-block; }
   .guide-nav { display: none; }
-  .guide-nav.offen { display: block; position: fixed; inset: 0 auto 0 0; z-index: 25; width: 82vw; }
+  .guide-nav.offen { display: block; position: fixed; inset: 0 auto 0 0; z-index: 25; width: 82vw; font-size: 14.5px; }
+  .guide-nav.offen a.kap { padding: 10px 8px; }
+  .guide-nav.offen a.abs { padding: 8px 8px 8px 24px; }
   .buch { padding: 22px 16px 100px; font-size: 1.02rem; }
   .lm-screen { padding: 24px 16px 60px; font-size: 1.05rem; }
   .lm-kopf, .lm-fuss { padding: 8px 12px; }
+  .lm-fuss button { padding: 11px 18px; font-size: 15px; }
   .stufe { grid-template-columns: 26px 1fr; }
   .stufe .rechts { grid-column: 2; }
   .ereignis { grid-template-columns: 64px 1fr; }