Drop PDF support, EPUB only

- internal/library: ListBooks only scans .epub files, dropping the
  pdf-specific metadata branch (epub metadata reading is now
  unconditional)
- internal/web: uploadSubmit rejects non-.epub uploads with updated
  error message
- views: upload form/file input and empty-library hint now reference
  only EPUB; templ regenerated
- README/copilot-instructions updated to reflect EPUB-only scope

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/copilot-instructions.md

@@ -1,6 +1,6 @@
 # eBook Library (Go + templ)
 
-Minimalistic, no-JS eBook library web app for reading files (EPUB/PDF) on a
+Minimalistic, no-JS eBook library web app for reading EPUB files on a
 Tolino e-reader browser. UI text/comments are in German.
 
 ## Build & run

README.md

@@ -4,7 +4,7 @@ Minimalistische eBook-Bibliothek für den Tolino-Webbrowser.
 
 ## Features (MVP)
 
-- Listet EPUB/PDF-Dateien aus `books/`
+- Listet EPUB-Dateien aus `books/`
 - Detailseite pro Buch
 - Download-Link pro Buch (für Tolino)
 - Schlichtes, kontrastreiches UI ohne JavaScript-Abhängigkeit
@@ -56,10 +56,7 @@ go run ./cmd/server
 
 ## Bücher hinzufügen
 
-Lege deine Dateien in den Ordner `books/`:
-
-- `.epub` (bevorzugt)
-- `.pdf` (optional)
+Lege deine EPUB-Dateien in den Ordner `books/`.
 
 Alternativ können Benutzer mit Upload-Recht Bücher direkt im Browser hochladen.
 
@@ -74,6 +71,68 @@ go run ./cmd/admin user delete <name>
 go run ./cmd/admin user set-role <name> <reader|uploader|admin>
 ```
 
+## Docker / docker-compose Deployment
+
+Beispiel `docker-compose.yml`:
+
+```yaml
+version: '3'
+
+networks:
+  web:
+    external: true
+
+services:
+  app:
+    image: git.arnef.de/arnef/ebooks:latest
+    restart: always
+    networks:
+      - web
+    volumes:
+      - ./data:/data
+      - /etc/timezone:/etc/timezone:ro
+      - /etc/localtime:/etc/localtime:ro
+    labels:
+      traefik.enable: 'true'
+      traefik.http.routers.ebooks.rule: Host(`books.arnef.de`)
+      traefik.http.routers.ebooks.entrypoints: websecure
+      traefik.http.routers.ebooks.tls.certresolver: letsencrypt
+      traefik.http.services.ebooks.loadbalancer.server.port: 8080
+```
+
+Der Container läuft als nicht-root Benutzer `ebooks` (UID `100`, GID `101`).
+`BOOKS_DIR` (`/data/books`) und `USERS_DB` (`/data/users.db`) liegen im
+Volume `./data`. Der Server legt `BOOKS_DIR` beim Start automatisch an,
+falls es fehlt — gehört das Host-Verzeichnis `./data` aber nicht dem
+passenden UID/GID, schlägt das Anlegen fehl bzw. `users.db` kann nicht
+geöffnet werden (`unable to open database file`) und Uploads schlagen mit
+"Datei konnte nicht gespeichert werden" fehl.
+
+1. Datenverzeichnis anlegen und Rechte setzen:
+
+```bash
+mkdir -p data
+sudo chown -R 100:101 data
+```
+
+2. Container starten:
+
+```bash
+docker compose up -d
+```
+
+3. Ersten Benutzer über die im Image enthaltene Admin-CLI anlegen (der
+   Server muss dafür nicht gestoppt werden, `--role admin` empfohlen für
+   den ersten Account):
+
+```bash
+docker compose exec app /app/admin user add <name> --role admin
+docker compose exec app /app/admin user list
+```
+
+`USERS_DB` ist im Image bereits auf `/data/users.db` gesetzt, daher ist
+kein zusätzlicher Parameter nötig.
+
 ## Konfiguration
 
 Umgebungsvariablen:

cmd/server/main.go

@@ -21,7 +21,10 @@ func main() {
 	}
 	defer store.Close()
 
-	lib := library.New(booksDir)
+	lib, err := library.New(booksDir)
+	if err != nil {
+		log.Fatalf("books dir: %v", err)
+	}
 	h := web.NewHandler(lib, store)
 
 	mux := http.NewServeMux()

internal/library/library.go

@@ -19,8 +19,11 @@ type Service struct {
 	booksDir string
 }
 
-func New(booksDir string) *Service {
-	return &Service{booksDir: booksDir}
+func New(booksDir string) (*Service, error) {
+	if err := os.MkdirAll(booksDir, 0o755); err != nil {
+		return nil, fmt.Errorf("books dir: %w", err)
+	}
+	return &Service{booksDir: booksDir}, nil
 }
 
 func (s *Service) BooksDir() string { return s.booksDir }
@@ -41,7 +44,7 @@ func (s *Service) ListBooks() ([]Book, error) {
 		}
 
 		ext := strings.ToLower(filepath.Ext(e.Name()))
-		if ext != ".epub" && ext != ".pdf" {
+		if ext != ".epub" {
 			continue
 		}
 
@@ -52,17 +55,15 @@ func (s *Service) ListBooks() ([]Book, error) {
 		hasCover := false
 		title := fallbackTitle
 
-		if ext == ".epub" {
-			meta, err := readEPUBMetadata(fullPath)
-			if err == nil {
-				if strings.TrimSpace(meta.Title) != "" {
-					title = strings.TrimSpace(meta.Title)
-				}
-				if strings.TrimSpace(meta.Author) != "" {
-					author = strings.TrimSpace(meta.Author)
-				}
-				hasCover = meta.HasCover
+		meta, err := readEPUBMetadata(fullPath)
+		if err == nil {
+			if strings.TrimSpace(meta.Title) != "" {
+				title = strings.TrimSpace(meta.Title)
 			}
+			if strings.TrimSpace(meta.Author) != "" {
+				author = strings.TrimSpace(meta.Author)
+			}
+			hasCover = meta.HasCover
 		}
 
 		books = append(books, Book{

internal/web/handlers.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"log"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -209,8 +210,8 @@ func (h *Handler) uploadSubmit(w http.ResponseWriter, r *http.Request) {
 	defer file.Close()
 
 	ext := strings.ToLower(filepath.Ext(header.Filename))
-	if ext != ".epub" && ext != ".pdf" {
-		render(w, r.Context(), views.UploadPage("Nur EPUB- und PDF-Dateien erlaubt."))
+	if ext != ".epub" {
+		render(w, r.Context(), views.UploadPage("Nur EPUB-Dateien erlaubt."))
 		return
 	}
 
@@ -232,12 +233,14 @@ func (h *Handler) uploadSubmit(w http.ResponseWriter, r *http.Request) {
 			render(w, r.Context(), views.UploadPage(fmt.Sprintf("Datei '%s' existiert bereits.", safeFilename)))
 			return
 		}
+		log.Printf("upload: create %q failed: %v", destPath, err)
 		http.Error(w, "Datei konnte nicht gespeichert werden", http.StatusInternalServerError)
 		return
 	}
 	defer out.Close()
 
 	if _, err := io.Copy(out, file); err != nil {
+		log.Printf("upload: write %q failed: %v", destPath, err)
 		_ = os.Remove(destPath)
 		http.Error(w, "Upload fehlgeschlagen", http.StatusInternalServerError)
 		return

static/styles.css

@@ -73,26 +73,28 @@ h2 {
 
 .book-list {
   list-style: none;
-  margin: 0 -0.25rem;
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 0.5rem;
+  margin: 0;
   padding: 0;
 }
 
 .book-item {
-  display: inline-block;
-  width: 33.3333%;
-  vertical-align: top;
   box-sizing: border-box;
-  padding: 0.25rem;
   margin: 0;
   border: none;
 }
 
 .book-card {
-  display: block;
+  display: flex;
+  flex-direction: column;
+  height: 100%;
   border: 1px solid #000;
   padding: 0.5rem;
   color: inherit;
   text-decoration: none;
+  box-sizing: border-box;
 }
 
 .book-card-cover {
@@ -141,18 +143,25 @@ h2 {
   margin-bottom: 1rem;
 }
 
-.book-title {
-  display: block;
+.book-card .book-title {
   font-weight: bold;
   font-size: 0.95rem;
   line-height: 1.25;
   margin-bottom: 0.25rem;
+  overflow-wrap: break-word;
+  word-break: break-word;
+  display: -webkit-box;
+  -webkit-line-clamp: 3;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
 }
 
 .book-author,
 .book-author-detail {
   display: block;
   margin-top: 0.2rem;
+  overflow-wrap: break-word;
+  word-break: break-word;
 }
 
 .book-author {

views/pages.templ

@@ -77,8 +77,8 @@ templ UploadPage(errMsg string) {
       <p class="error">{ errMsg }</p>
     }
     <form method="post" action="/upload" enctype="multipart/form-data" class="upload-form">
-      <label for="book">EPUB oder PDF auswählen</label>
-      <input id="book" type="file" name="book" accept=".epub,.pdf" required />
+      <label for="book">EPUB auswählen</label>
+      <input id="book" type="file" name="book" accept=".epub" required />
       <button type="submit" class="btn">Hochladen</button>
     </form>
   }
@@ -104,7 +104,7 @@ templ IndexPage(books []library.Book, canUpload bool) {
       }
     </section>
     if len(books) == 0 {
-      <p>Keine eBooks gefunden. Lege EPUB- oder PDF-Dateien im Ordner <code>books/</code> ab.</p>
+      <p>Keine eBooks gefunden. Lege EPUB-Dateien im Ordner <code>books/</code> ab.</p>
     } else {
       <ul class="book-list">
         for _, b := range books {
@@ -114,8 +114,8 @@ templ IndexPage(books []library.Book, canUpload bool) {
                 @BookCover(b, false)
               </div>
               <div class="book-card-body">
-                <strong class="book-title">{ b.Title }</strong>
-                <span class="book-author">{ b.Author }</span>
+                <strong class="book-title" title={ b.Title }>{ truncateTitle(b.Title, 60) }</strong>
+                <span class="book-author">{ truncateTitle(b.Author, 40) }</span>
                 <span class="format">{ b.Format }</span>
               </div>
             </a>
@@ -164,3 +164,14 @@ func placeholderClass(detail bool) string {
   }
   return "book-cover-placeholder"
 }
+
+// truncateTitle kürzt lange Titel für die Kartenansicht, damit lange,
+// nicht umbrechbare Titel das Grid-Layout nicht sprengen. Der volle Titel
+// bleibt im Detail-Seiten-Titel und im alt-Text des Covers erhalten.
+func truncateTitle(title string, maxLen int) string {
+  r := []rune(title)
+  if len(r) <= maxLen {
+    return title
+  }
+  return string(r[:maxLen]) + "…"
+}

views/pages_templ.go

@@ -262,7 +262,7 @@ func UploadPage(errMsg string) templ.Component {
 					return templ_7745c5c3_Err
 				}
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 17, " <form method=\"post\" action=\"/upload\" enctype=\"multipart/form-data\" class=\"upload-form\"><label for=\"book\">EPUB oder PDF auswählen</label> <input id=\"book\" type=\"file\" name=\"book\" accept=\".epub,.pdf\" required> <button type=\"submit\" class=\"btn\">Hochladen</button></form>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 17, " <form method=\"post\" action=\"/upload\" enctype=\"multipart/form-data\" class=\"upload-form\"><label for=\"book\">EPUB auswählen</label> <input id=\"book\" type=\"file\" name=\"book\" accept=\".epub\" required> <button type=\"submit\" class=\"btn\">Hochladen</button></form>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -435,7 +435,7 @@ func IndexPage(books []library.Book, canUpload bool) templ.Component {
 				return templ_7745c5c3_Err
 			}
 			if len(books) == 0 {
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "<p>Keine eBooks gefunden. Lege EPUB- oder PDF-Dateien im Ordner <code>books/</code> ab.</p>")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "<p>Keine eBooks gefunden. Lege EPUB-Dateien im Ordner <code>books/</code> ab.</p>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
@@ -466,51 +466,64 @@ func IndexPage(books []library.Book, canUpload bool) templ.Component {
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, "</div><div class=\"book-card-body\"><strong class=\"book-title\">")
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, "</div><div class=\"book-card-body\"><strong class=\"book-title\" title=\"")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
 					var templ_7745c5c3_Var23 string
-					templ_7745c5c3_Var23, templ_7745c5c3_Err = templ.JoinStringErrs(b.Title)
+					templ_7745c5c3_Var23, templ_7745c5c3_Err = templ.ResolveAttributeValue(b.Title)
 					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 117, Col: 52}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 117, Col: 58}
 					}
-					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var23))
+					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ_7745c5c3_Var23)
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "</strong> <span class=\"book-author\">")
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "\">")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
 					var templ_7745c5c3_Var24 string
-					templ_7745c5c3_Var24, templ_7745c5c3_Err = templ.JoinStringErrs(b.Author)
+					templ_7745c5c3_Var24, templ_7745c5c3_Err = templ.JoinStringErrs(truncateTitle(b.Title, 60))
 					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 118, Col: 52}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 117, Col: 89}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var24))
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "</span> <span class=\"format\">")
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "</strong> <span class=\"book-author\">")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
 					var templ_7745c5c3_Var25 string
-					templ_7745c5c3_Var25, templ_7745c5c3_Err = templ.JoinStringErrs(b.Format)
+					templ_7745c5c3_Var25, templ_7745c5c3_Err = templ.JoinStringErrs(truncateTitle(b.Author, 40))
 					if templ_7745c5c3_Err != nil {
-						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 119, Col: 47}
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 118, Col: 71}
 					}
 					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var25))
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
-					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, "</span></div></a></li>")
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, "</span> <span class=\"format\">")
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					var templ_7745c5c3_Var26 string
+					templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs(b.Format)
+					if templ_7745c5c3_Err != nil {
+						return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 119, Col: 47}
+					}
+					_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var26))
+					if templ_7745c5c3_Err != nil {
+						return templ_7745c5c3_Err
+					}
+					templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, "</span></div></a></li>")
 					if templ_7745c5c3_Err != nil {
 						return templ_7745c5c3_Err
 					}
 				}
-				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, "</ul>")
+				templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "</ul>")
 				if templ_7745c5c3_Err != nil {
 					return templ_7745c5c3_Err
 				}
@@ -541,12 +554,12 @@ func BookPage(book library.Book) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var26 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var26 == nil {
-			templ_7745c5c3_Var26 = templ.NopComponent
+		templ_7745c5c3_Var27 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var27 == nil {
+			templ_7745c5c3_Var27 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Var27 := templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
+		templ_7745c5c3_Var28 := templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 			templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 			templ_7745c5c3_Buffer, templ_7745c5c3_IsBuffer := templruntime.GetBuffer(templ_7745c5c3_W)
 			if !templ_7745c5c3_IsBuffer {
@@ -558,7 +571,7 @@ func BookPage(book library.Book) templ.Component {
 				}()
 			}
 			ctx = templ.InitializeContext(ctx)
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "<article class=\"book-detail\"><div class=\"book-detail-cover\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "<article class=\"book-detail\"><div class=\"book-detail-cover\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -566,78 +579,78 @@ func BookPage(book library.Book) templ.Component {
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "</div><div class=\"book-detail-body\"><h2>")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var28 string
-			templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.JoinStringErrs(book.Title)
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 136, Col: 24}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var28))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "</h2><p class=\"book-author-detail\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "</div><div class=\"book-detail-body\"><h2>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var29 string
-			templ_7745c5c3_Var29, templ_7745c5c3_Err = templ.JoinStringErrs(book.Author)
+			templ_7745c5c3_Var29, templ_7745c5c3_Err = templ.JoinStringErrs(book.Title)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 137, Col: 51}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 136, Col: 24}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var29))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "</p><dl class=\"book-meta\"><div><dt>Datei</dt><dd>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "</h2><p class=\"book-author-detail\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var30 string
-			templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.JoinStringErrs(book.Filename)
+			templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.JoinStringErrs(book.Author)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 141, Col: 31}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 137, Col: 51}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var30))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</dd></div><div><dt>Format</dt><dd>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</p><dl class=\"book-meta\"><div><dt>Datei</dt><dd>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var31 string
-			templ_7745c5c3_Var31, templ_7745c5c3_Err = templ.JoinStringErrs(book.Format)
+			templ_7745c5c3_Var31, templ_7745c5c3_Err = templ.JoinStringErrs(book.Filename)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 145, Col: 29}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 141, Col: 31}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var31))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "</dd></div></dl><p><a class=\"btn\" href=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "</dd></div><div><dt>Format</dt><dd>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var32 templ.SafeURL
-			templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.JoinURLErrs("/download/" + book.ID)
+			var templ_7745c5c3_Var32 string
+			templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.JoinStringErrs(book.Format)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 148, Col: 55}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 145, Col: 29}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var32))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "\">Auf Tolino herunterladen</a></p></div></article>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "</dd></div></dl><p><a class=\"btn\" href=\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var33 templ.SafeURL
+			templ_7745c5c3_Var33, templ_7745c5c3_Err = templ.JoinURLErrs("/download/" + book.ID)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/pages.templ`, Line: 148, Col: 55}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var33))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, "\">Auf Tolino herunterladen</a></p></div></article>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			return nil
 		})
-		templ_7745c5c3_Err = Layout(book.Title, "/").Render(templ.WithChildren(ctx, templ_7745c5c3_Var27), templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = Layout(book.Title, "/").Render(templ.WithChildren(ctx, templ_7745c5c3_Var28), templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -659,4 +672,15 @@ func placeholderClass(detail bool) string {
 	return "book-cover-placeholder"
 }
 
+// truncateTitle kürzt lange Titel für die Kartenansicht, damit lange,
+// nicht umbrechbare Titel das Grid-Layout nicht sprengen. Der volle Titel
+// bleibt im Detail-Seiten-Titel und im alt-Text des Covers erhalten.
+func truncateTitle(title string, maxLen int) string {
+	r := []rune(title)
+	if len(r) <= maxLen {
+		return title
+	}
+	return string(r[:maxLen]) + "…"
+}
+
 var _ = templruntime.GeneratedTemplate