diff --git a/apps/api/src/settings.rs b/apps/api/src/settings.rs
index 7fb8dee..4272800 100644
--- a/apps/api/src/settings.rs
+++ b/apps/api/src/settings.rs
@@ -42,6 +42,7 @@ pub fn settings_routes() -> Router<AppState> {
         .route("/settings/cache/clear", post(clear_cache))
         .route("/settings/cache/stats", get(get_cache_stats))
         .route("/settings/thumbnail/stats", get(get_thumbnail_stats))
+        .route("/settings/search/resync", post(force_search_resync))
 }
 
 /// List all settings
@@ -324,3 +325,27 @@ pub async fn get_thumbnail_stats(State(_state): State<AppState>) -> Result<Json<
 
     Ok(Json(stats))
 }
+
+/// Force a full Meilisearch resync by resetting the sync timestamp
+#[utoipa::path(
+    post,
+    path = "/settings/search/resync",
+    tag = "settings",
+    responses(
+        (status = 200, description = "Resync scheduled"),
+        (status = 401, description = "Unauthorized"),
+    ),
+    security(("Bearer" = []))
+)]
+pub async fn force_search_resync(
+    State(state): State<AppState>,
+) -> Result<Json<Value>, ApiError> {
+    sqlx::query("UPDATE sync_metadata SET last_meili_sync = NULL WHERE id = 1")
+        .execute(&state.pool)
+        .await?;
+
+    Ok(Json(serde_json::json!({
+        "success": true,
+        "message": "Search resync scheduled. The indexer will perform a full sync on its next cycle."
+    })))
+}
diff --git a/apps/backoffice/app/api/settings/search/resync/route.ts b/apps/backoffice/app/api/settings/search/resync/route.ts
new file mode 100644
index 0000000..73da482
--- /dev/null
+++ b/apps/backoffice/app/api/settings/search/resync/route.ts
@@ -0,0 +1,11 @@
+import { NextResponse } from "next/server";
+import { forceSearchResync } from "@/lib/api";
+
+export async function POST() {
+  try {
+    const data = await forceSearchResync();
+    return NextResponse.json(data);
+  } catch (error) {
+    return NextResponse.json({ error: "Failed to trigger search resync" }, { status: 500 });
+  }
+}
diff --git a/apps/backoffice/app/books/page.tsx b/apps/backoffice/app/books/page.tsx
index 27d320e..00a8759 100644
--- a/apps/backoffice/app/books/page.tsx
+++ b/apps/backoffice/app/books/page.tsx
@@ -39,8 +39,8 @@ export default async function BooksPage({
         library_id: hit.library_id,
         kind: hit.kind,
         title: hit.title,
-        author: hit.author,
-        authors: [],
+        author: hit.authors?.[0] ?? null,
+        authors: hit.authors ?? [],
         series: hit.series,
         volume: hit.volume,
         language: hit.language,
diff --git a/apps/backoffice/app/components/EditBookForm.tsx b/apps/backoffice/app/components/EditBookForm.tsx
index 1f71b02..48872a5 100644
--- a/apps/backoffice/app/components/EditBookForm.tsx
+++ b/apps/backoffice/app/components/EditBookForm.tsx
@@ -1,6 +1,7 @@
 "use client";
 
-import { useState, useTransition } from "react";
+import { useState, useTransition, useEffect, useCallback } from "react";
+import { createPortal } from "react-dom";
 import { useRouter } from "next/navigation";
 import { BookDto } from "@/lib/api";
 import { FormField, FormLabel, FormInput } from "./ui/Form";
@@ -12,7 +13,7 @@ interface EditBookFormProps {
 export function EditBookForm({ book }: EditBookFormProps) {
   const router = useRouter();
   const [isPending, startTransition] = useTransition();
-  const [isEditing, setIsEditing] = useState(false);
+  const [isOpen, setIsOpen] = useState(false);
   const [error, setError] = useState<string | null>(null);
 
   const [title, setTitle] = useState(book.title);
@@ -43,7 +44,7 @@ export function EditBookForm({ book }: EditBookFormProps) {
     }
   };
 
-  const handleCancel = () => {
+  const handleClose = useCallback(() => {
     setTitle(book.title);
     setAuthors(book.authors ?? []);
     setAuthorInput("");
@@ -51,8 +52,17 @@ export function EditBookForm({ book }: EditBookFormProps) {
     setVolume(book.volume?.toString() ?? "");
     setLanguage(book.language ?? "");
     setError(null);
-    setIsEditing(false);
-  };
+    setIsOpen(false);
+  }, [book]);
+
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape" && !isPending) handleClose();
+    };
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen, isPending, handleClose]);
 
   const handleSubmit = (e: React.FormEvent) => {
     e.preventDefault();
@@ -82,7 +92,7 @@ export function EditBookForm({ book }: EditBookFormProps) {
           setError(data.error ?? "Erreur lors de la sauvegarde");
           return;
         }
-        setIsEditing(false);
+        setIsOpen(false);
         router.refresh();
       } catch {
         setError("Erreur réseau");
@@ -90,133 +100,163 @@ export function EditBookForm({ book }: EditBookFormProps) {
     });
   };
 
-  if (!isEditing) {
-    return (
+  const modal = isOpen ? createPortal(
+    <>
+      {/* Backdrop */}
+      <div
+        className="fixed inset-0 bg-black/30 backdrop-blur-sm z-50"
+        onClick={() => !isPending && handleClose()}
+      />
+
+      {/* Modal */}
+      <div className="fixed inset-0 flex items-center justify-center z-50 p-4">
+        <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-2xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
+          {/* Header */}
+          <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
+            <h3 className="font-semibold text-foreground">Modifier les métadonnées</h3>
+            <button
+              type="button"
+              onClick={handleClose}
+              disabled={isPending}
+              className="text-muted-foreground hover:text-foreground transition-colors p-1 hover:bg-accent rounded"
+            >
+              <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+              </svg>
+            </button>
+          </div>
+
+          {/* Body */}
+          <form onSubmit={handleSubmit} className="p-5 space-y-5">
+            <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
+              <FormField className="sm:col-span-2">
+                <FormLabel required>Titre</FormLabel>
+                <FormInput
+                  value={title}
+                  onChange={(e) => setTitle(e.target.value)}
+                  disabled={isPending}
+                  placeholder="Titre du livre"
+                />
+              </FormField>
+
+              {/* Auteurs — multi-valeur */}
+              <FormField className="sm:col-span-2">
+                <FormLabel>Auteur(s)</FormLabel>
+                <div className="space-y-2">
+                  {authors.length > 0 && (
+                    <div className="flex flex-wrap gap-1.5">
+                      {authors.map((a, i) => (
+                        <span
+                          key={i}
+                          className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-primary/10 text-primary text-xs font-medium"
+                        >
+                          {a}
+                          <button
+                            type="button"
+                            onClick={() => removeAuthor(i)}
+                            disabled={isPending}
+                            className="hover:text-destructive transition-colors ml-0.5"
+                            aria-label={`Supprimer ${a}`}
+                          >
+                            ×
+                          </button>
+                        </span>
+                      ))}
+                    </div>
+                  )}
+                  <div className="flex gap-2">
+                    <input
+                      ref={setAuthorInputEl}
+                      value={authorInput}
+                      onChange={(e) => setAuthorInput(e.target.value)}
+                      onKeyDown={handleAuthorKeyDown}
+                      disabled={isPending}
+                      placeholder="Ajouter un auteur (Entrée pour valider)"
+                      className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
+                    />
+                    <button
+                      type="button"
+                      onClick={addAuthor}
+                      disabled={isPending || !authorInput.trim()}
+                      className="px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground disabled:opacity-40 transition-colors"
+                    >
+                      +
+                    </button>
+                  </div>
+                </div>
+              </FormField>
+
+              <FormField>
+                <FormLabel>Langue</FormLabel>
+                <FormInput
+                  value={language}
+                  onChange={(e) => setLanguage(e.target.value)}
+                  disabled={isPending}
+                  placeholder="ex : fr, en, jp"
+                />
+              </FormField>
+
+              <FormField>
+                <FormLabel>Série</FormLabel>
+                <FormInput
+                  value={series}
+                  onChange={(e) => setSeries(e.target.value)}
+                  disabled={isPending}
+                  placeholder="Nom de la série"
+                />
+              </FormField>
+
+              <FormField>
+                <FormLabel>Volume</FormLabel>
+                <FormInput
+                  type="number"
+                  min="1"
+                  value={volume}
+                  onChange={(e) => setVolume(e.target.value)}
+                  disabled={isPending}
+                  placeholder="Numéro de volume"
+                />
+              </FormField>
+            </div>
+
+            {error && (
+              <p className="text-xs text-destructive">{error}</p>
+            )}
+
+            {/* Footer */}
+            <div className="flex items-center justify-end gap-2 pt-2 border-t border-border/50">
+              <button
+                type="button"
+                onClick={handleClose}
+                disabled={isPending}
+                className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
+              >
+                Annuler
+              </button>
+              <button
+                type="submit"
+                disabled={isPending || !title.trim()}
+                className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+              >
+                {isPending ? "Sauvegarde…" : "Sauvegarder"}
+              </button>
+            </div>
+          </form>
+        </div>
+      </div>
+    </>,
+    document.body
+  ) : null;
+
+  return (
+    <>
       <button
-        onClick={() => setIsEditing(true)}
+        onClick={() => setIsOpen(true)}
         className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
       >
         <span>✏️</span> Modifier
       </button>
-    );
-  }
-
-  return (
-    <form onSubmit={handleSubmit} className="mt-4 p-4 border border-border rounded-xl bg-muted/30 space-y-4">
-      <h3 className="text-sm font-semibold text-foreground">Modifier les métadonnées</h3>
-
-      <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
-        <FormField className="sm:col-span-2">
-          <FormLabel required>Titre</FormLabel>
-          <FormInput
-            value={title}
-            onChange={(e) => setTitle(e.target.value)}
-            disabled={isPending}
-            placeholder="Titre du livre"
-          />
-        </FormField>
-
-        {/* Auteurs — multi-valeur */}
-        <FormField className="sm:col-span-2">
-          <FormLabel>Auteur(s)</FormLabel>
-          <div className="space-y-2">
-            {authors.length > 0 && (
-              <div className="flex flex-wrap gap-1.5">
-                {authors.map((a, i) => (
-                  <span
-                    key={i}
-                    className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-primary/10 text-primary text-xs font-medium"
-                  >
-                    {a}
-                    <button
-                      type="button"
-                      onClick={() => removeAuthor(i)}
-                      disabled={isPending}
-                      className="hover:text-destructive transition-colors ml-0.5"
-                      aria-label={`Supprimer ${a}`}
-                    >
-                      ×
-                    </button>
-                  </span>
-                ))}
-              </div>
-            )}
-            <div className="flex gap-2">
-              <input
-                ref={setAuthorInputEl}
-                value={authorInput}
-                onChange={(e) => setAuthorInput(e.target.value)}
-                onKeyDown={handleAuthorKeyDown}
-                disabled={isPending}
-                placeholder="Ajouter un auteur (Entrée pour valider)"
-                className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
-              />
-              <button
-                type="button"
-                onClick={addAuthor}
-                disabled={isPending || !authorInput.trim()}
-                className="px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground disabled:opacity-40 transition-colors"
-              >
-                +
-              </button>
-            </div>
-          </div>
-        </FormField>
-
-        <FormField>
-          <FormLabel>Langue</FormLabel>
-          <FormInput
-            value={language}
-            onChange={(e) => setLanguage(e.target.value)}
-            disabled={isPending}
-            placeholder="ex : fr, en, jp"
-          />
-        </FormField>
-
-        <FormField>
-          <FormLabel>Série</FormLabel>
-          <FormInput
-            value={series}
-            onChange={(e) => setSeries(e.target.value)}
-            disabled={isPending}
-            placeholder="Nom de la série"
-          />
-        </FormField>
-
-        <FormField>
-          <FormLabel>Volume</FormLabel>
-          <FormInput
-            type="number"
-            min="1"
-            value={volume}
-            onChange={(e) => setVolume(e.target.value)}
-            disabled={isPending}
-            placeholder="Numéro de volume"
-          />
-        </FormField>
-      </div>
-
-      {error && (
-        <p className="text-xs text-destructive">{error}</p>
-      )}
-
-      <div className="flex items-center gap-2">
-        <button
-          type="submit"
-          disabled={isPending || !title.trim()}
-          className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
-        >
-          {isPending ? "Sauvegarde…" : "Sauvegarder"}
-        </button>
-        <button
-          type="button"
-          onClick={handleCancel}
-          disabled={isPending}
-          className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
-        >
-          Annuler
-        </button>
-      </div>
-    </form>
+      {modal}
+    </>
   );
 }
diff --git a/apps/backoffice/app/components/EditSeriesForm.tsx b/apps/backoffice/app/components/EditSeriesForm.tsx
index bd3f4de..b520f2f 100644
--- a/apps/backoffice/app/components/EditSeriesForm.tsx
+++ b/apps/backoffice/app/components/EditSeriesForm.tsx
@@ -1,6 +1,7 @@
 "use client";
 
-import { useState, useTransition } from "react";
+import { useState, useTransition, useEffect, useCallback } from "react";
+import { createPortal } from "react-dom";
 import { useRouter } from "next/navigation";
 import { FormField, FormLabel, FormInput } from "./ui/Form";
 
@@ -27,7 +28,7 @@ export function EditSeriesForm({
 }: EditSeriesFormProps) {
   const router = useRouter();
   const [isPending, startTransition] = useTransition();
-  const [isEditing, setIsEditing] = useState(false);
+  const [isOpen, setIsOpen] = useState(false);
   const [error, setError] = useState<string | null>(null);
 
   // Champs propres à la série
@@ -86,7 +87,7 @@ export function EditSeriesForm({
     }
   };
 
-  const handleCancel = () => {
+  const handleClose = useCallback(() => {
     setNewName(seriesName === "unclassified" ? "" : seriesName);
     setAuthors(currentAuthors);
     setAuthorInput("");
@@ -98,8 +99,17 @@ export function EditSeriesForm({
     setBookAuthor(currentBookAuthor ?? "");
     setBookLanguage(currentBookLanguage ?? "");
     setError(null);
-    setIsEditing(false);
-  };
+    setIsOpen(false);
+  }, [seriesName, currentAuthors, currentPublishers, currentDescription, currentStartYear, currentBookAuthor, currentBookLanguage]);
+
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape" && !isPending) handleClose();
+    };
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen, isPending, handleClose]);
 
   const handleSubmit = (e: React.FormEvent) => {
     e.preventDefault();
@@ -142,7 +152,7 @@ export function EditSeriesForm({
           setError(data.error ?? "Erreur lors de la sauvegarde");
           return;
         }
-        setIsEditing(false);
+        setIsOpen(false);
 
         if (effectiveName !== seriesName) {
           router.push(`/libraries/${libraryId}/series/${encodeURIComponent(effectiveName)}` as any);
@@ -155,207 +165,237 @@ export function EditSeriesForm({
     });
   };
 
-  if (!isEditing) {
-    return (
+  const modal = isOpen ? createPortal(
+    <>
+      {/* Backdrop */}
+      <div
+        className="fixed inset-0 bg-black/30 backdrop-blur-sm z-50"
+        onClick={() => !isPending && handleClose()}
+      />
+
+      {/* Modal */}
+      <div className="fixed inset-0 flex items-center justify-center z-50 p-4">
+        <div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-2xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
+          {/* Header */}
+          <div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
+            <h3 className="font-semibold text-foreground">Modifier la série</h3>
+            <button
+              type="button"
+              onClick={handleClose}
+              disabled={isPending}
+              className="text-muted-foreground hover:text-foreground transition-colors p-1 hover:bg-accent rounded"
+            >
+              <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+              </svg>
+            </button>
+          </div>
+
+          {/* Body */}
+          <form onSubmit={handleSubmit} className="p-5 space-y-5">
+            <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
+              <FormField>
+                <FormLabel required>Nom</FormLabel>
+                <FormInput
+                  value={newName}
+                  onChange={(e) => setNewName(e.target.value)}
+                  disabled={isPending}
+                  placeholder="Nom de la série"
+                />
+              </FormField>
+
+              <FormField>
+                <FormLabel>Année de début</FormLabel>
+                <FormInput
+                  type="number"
+                  min="1900"
+                  max="2100"
+                  value={startYear}
+                  onChange={(e) => setStartYear(e.target.value)}
+                  disabled={isPending}
+                  placeholder="ex : 1990"
+                />
+              </FormField>
+
+              {/* Auteurs — multi-valeur */}
+              <FormField className="sm:col-span-2">
+                <FormLabel>Auteur(s)</FormLabel>
+                <div className="space-y-2">
+                  {authors.length > 0 && (
+                    <div className="flex flex-wrap gap-1.5">
+                      {authors.map((a, i) => (
+                        <span
+                          key={i}
+                          className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-primary/10 text-primary text-xs font-medium"
+                        >
+                          {a}
+                          <button
+                            type="button"
+                            onClick={() => removeAuthor(i)}
+                            disabled={isPending}
+                            className="hover:text-destructive transition-colors ml-0.5"
+                            aria-label={`Supprimer ${a}`}
+                          >
+                            ×
+                          </button>
+                        </span>
+                      ))}
+                    </div>
+                  )}
+                  <div className="flex gap-2">
+                    <input
+                      ref={setAuthorInputEl}
+                      value={authorInput}
+                      onChange={(e) => setAuthorInput(e.target.value)}
+                      onKeyDown={handleAuthorKeyDown}
+                      disabled={isPending}
+                      placeholder="Ajouter un auteur (Entrée pour valider)"
+                      className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
+                    />
+                    <button
+                      type="button"
+                      onClick={addAuthor}
+                      disabled={isPending || !authorInput.trim()}
+                      className="px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground disabled:opacity-40 transition-colors"
+                    >
+                      +
+                    </button>
+                    <button
+                      type="button"
+                      onClick={() => setShowApplyToBooks(!showApplyToBooks)}
+                      disabled={isPending}
+                      className={`px-3 py-1.5 rounded-lg border text-sm font-medium transition-colors ${
+                        showApplyToBooks
+                          ? "border-primary bg-primary/10 text-primary"
+                          : "border-border bg-card text-muted-foreground hover:text-foreground"
+                      }`}
+                      title="Appliquer auteur et langue à tous les livres de la série"
+                    >
+                      → livres
+                    </button>
+                  </div>
+                </div>
+              </FormField>
+
+              {showApplyToBooks && (
+                <div className="sm:col-span-2 grid grid-cols-1 sm:grid-cols-2 gap-3 pl-4 border-l-2 border-primary/30">
+                  <FormField>
+                    <FormLabel>Auteur (livres)</FormLabel>
+                    <FormInput
+                      value={bookAuthor}
+                      onChange={(e) => setBookAuthor(e.target.value)}
+                      disabled={isPending}
+                      placeholder="Écrase le champ auteur de chaque livre"
+                    />
+                  </FormField>
+                  <FormField>
+                    <FormLabel>Langue (livres)</FormLabel>
+                    <FormInput
+                      value={bookLanguage}
+                      onChange={(e) => setBookLanguage(e.target.value)}
+                      disabled={isPending}
+                      placeholder="ex : fr, en, jp"
+                    />
+                  </FormField>
+                </div>
+              )}
+
+              {/* Éditeurs — multi-valeur */}
+              <FormField className="sm:col-span-2">
+                <FormLabel>Éditeur(s)</FormLabel>
+                <div className="space-y-2">
+                  {publishers.length > 0 && (
+                    <div className="flex flex-wrap gap-1.5">
+                      {publishers.map((p, i) => (
+                        <span
+                          key={i}
+                          className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-secondary/50 text-secondary-foreground text-xs font-medium"
+                        >
+                          {p}
+                          <button
+                            type="button"
+                            onClick={() => removePublisher(i)}
+                            disabled={isPending}
+                            className="hover:text-destructive transition-colors ml-0.5"
+                            aria-label={`Supprimer ${p}`}
+                          >
+                            ×
+                          </button>
+                        </span>
+                      ))}
+                    </div>
+                  )}
+                  <div className="flex gap-2">
+                    <input
+                      ref={setPublisherInputEl}
+                      value={publisherInput}
+                      onChange={(e) => setPublisherInput(e.target.value)}
+                      onKeyDown={handlePublisherKeyDown}
+                      disabled={isPending}
+                      placeholder="Ajouter un éditeur (Entrée pour valider)"
+                      className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
+                    />
+                    <button
+                      type="button"
+                      onClick={addPublisher}
+                      disabled={isPending || !publisherInput.trim()}
+                      className="px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground disabled:opacity-40 transition-colors"
+                    >
+                      +
+                    </button>
+                  </div>
+                </div>
+              </FormField>
+
+              <FormField className="sm:col-span-2">
+                <FormLabel>Description</FormLabel>
+                <textarea
+                  value={description}
+                  onChange={(e) => setDescription(e.target.value)}
+                  disabled={isPending}
+                  rows={3}
+                  placeholder="Synopsis ou description de la série…"
+                  className="flex w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 resize-none"
+                />
+              </FormField>
+            </div>
+
+            {error && <p className="text-xs text-destructive">{error}</p>}
+
+            {/* Footer */}
+            <div className="flex items-center justify-end gap-2 pt-2 border-t border-border/50">
+              <button
+                type="button"
+                onClick={handleClose}
+                disabled={isPending}
+                className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
+              >
+                Annuler
+              </button>
+              <button
+                type="submit"
+                disabled={isPending || (!newName.trim() && seriesName !== "unclassified")}
+                className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+              >
+                {isPending ? "Sauvegarde…" : "Sauvegarder"}
+              </button>
+            </div>
+          </form>
+        </div>
+      </div>
+    </>,
+    document.body
+  ) : null;
+
+  return (
+    <>
       <button
-        onClick={() => setIsEditing(true)}
+        onClick={() => setIsOpen(true)}
         className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
       >
         <span>✏️</span> Modifier la série
       </button>
-    );
-  }
-
-  return (
-    <form onSubmit={handleSubmit} className="w-full p-4 border border-border rounded-xl bg-muted/30 space-y-5">
-      <h3 className="text-sm font-semibold text-foreground">Modifier les métadonnées de la série</h3>
-
-      <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
-        <FormField>
-          <FormLabel required>Nom</FormLabel>
-          <FormInput
-            value={newName}
-            onChange={(e) => setNewName(e.target.value)}
-            disabled={isPending}
-            placeholder="Nom de la série"
-          />
-        </FormField>
-
-        <FormField>
-          <FormLabel>Année de début</FormLabel>
-          <FormInput
-            type="number"
-            min="1900"
-            max="2100"
-            value={startYear}
-            onChange={(e) => setStartYear(e.target.value)}
-            disabled={isPending}
-            placeholder="ex : 1990"
-          />
-        </FormField>
-
-        {/* Auteurs — multi-valeur */}
-        <FormField className="sm:col-span-2">
-          <FormLabel>Auteur(s)</FormLabel>
-          <div className="space-y-2">
-            {authors.length > 0 && (
-              <div className="flex flex-wrap gap-1.5">
-                {authors.map((a, i) => (
-                  <span
-                    key={i}
-                    className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-primary/10 text-primary text-xs font-medium"
-                  >
-                    {a}
-                    <button
-                      type="button"
-                      onClick={() => removeAuthor(i)}
-                      disabled={isPending}
-                      className="hover:text-destructive transition-colors ml-0.5"
-                      aria-label={`Supprimer ${a}`}
-                    >
-                      ×
-                    </button>
-                  </span>
-                ))}
-              </div>
-            )}
-            <div className="flex gap-2">
-              <input
-                ref={setAuthorInputEl}
-                value={authorInput}
-                onChange={(e) => setAuthorInput(e.target.value)}
-                onKeyDown={handleAuthorKeyDown}
-                disabled={isPending}
-                placeholder="Ajouter un auteur (Entrée pour valider)"
-                className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
-              />
-              <button
-                type="button"
-                onClick={addAuthor}
-                disabled={isPending || !authorInput.trim()}
-                className="px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground disabled:opacity-40 transition-colors"
-              >
-                +
-              </button>
-              <button
-                type="button"
-                onClick={() => setShowApplyToBooks(!showApplyToBooks)}
-                disabled={isPending}
-                className={`px-3 py-1.5 rounded-lg border text-sm font-medium transition-colors ${
-                  showApplyToBooks
-                    ? "border-primary bg-primary/10 text-primary"
-                    : "border-border bg-card text-muted-foreground hover:text-foreground"
-                }`}
-                title="Appliquer auteur et langue à tous les livres de la série"
-              >
-                → livres
-              </button>
-            </div>
-          </div>
-        </FormField>
-
-        {showApplyToBooks && (
-          <div className="sm:col-span-2 grid grid-cols-1 sm:grid-cols-2 gap-3 pl-4 border-l-2 border-primary/30">
-            <FormField>
-              <FormLabel>Auteur (livres)</FormLabel>
-              <FormInput
-                value={bookAuthor}
-                onChange={(e) => setBookAuthor(e.target.value)}
-                disabled={isPending}
-                placeholder="Écrase le champ auteur de chaque livre"
-              />
-            </FormField>
-            <FormField>
-              <FormLabel>Langue (livres)</FormLabel>
-              <FormInput
-                value={bookLanguage}
-                onChange={(e) => setBookLanguage(e.target.value)}
-                disabled={isPending}
-                placeholder="ex : fr, en, jp"
-              />
-            </FormField>
-          </div>
-        )}
-
-        {/* Éditeurs — multi-valeur */}
-        <FormField className="sm:col-span-2">
-          <FormLabel>Éditeur(s)</FormLabel>
-          <div className="space-y-2">
-            {publishers.length > 0 && (
-              <div className="flex flex-wrap gap-1.5">
-                {publishers.map((p, i) => (
-                  <span
-                    key={i}
-                    className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-secondary/50 text-secondary-foreground text-xs font-medium"
-                  >
-                    {p}
-                    <button
-                      type="button"
-                      onClick={() => removePublisher(i)}
-                      disabled={isPending}
-                      className="hover:text-destructive transition-colors ml-0.5"
-                      aria-label={`Supprimer ${p}`}
-                    >
-                      ×
-                    </button>
-                  </span>
-                ))}
-              </div>
-            )}
-            <div className="flex gap-2">
-              <input
-                ref={setPublisherInputEl}
-                value={publisherInput}
-                onChange={(e) => setPublisherInput(e.target.value)}
-                onKeyDown={handlePublisherKeyDown}
-                disabled={isPending}
-                placeholder="Ajouter un éditeur (Entrée pour valider)"
-                className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
-              />
-              <button
-                type="button"
-                onClick={addPublisher}
-                disabled={isPending || !publisherInput.trim()}
-                className="px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground disabled:opacity-40 transition-colors"
-              >
-                +
-              </button>
-            </div>
-          </div>
-        </FormField>
-
-        <FormField className="sm:col-span-2">
-          <FormLabel>Description</FormLabel>
-          <textarea
-            value={description}
-            onChange={(e) => setDescription(e.target.value)}
-            disabled={isPending}
-            rows={3}
-            placeholder="Synopsis ou description de la série…"
-            className="flex w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 resize-none"
-          />
-        </FormField>
-      </div>
-
-      {error && <p className="text-xs text-destructive">{error}</p>}
-
-      <div className="flex items-center gap-2">
-        <button
-          type="submit"
-          disabled={isPending || (!newName.trim() && seriesName !== "unclassified")}
-          className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
-        >
-          {isPending ? "Sauvegarde…" : "Sauvegarder"}
-        </button>
-        <button
-          type="button"
-          onClick={handleCancel}
-          disabled={isPending}
-          className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
-        >
-          Annuler
-        </button>
-      </div>
-    </form>
+      {modal}
+    </>
   );
 }
diff --git a/apps/backoffice/app/settings/SettingsPage.tsx b/apps/backoffice/app/settings/SettingsPage.tsx
index c951fa6..b35ec06 100644
--- a/apps/backoffice/app/settings/SettingsPage.tsx
+++ b/apps/backoffice/app/settings/SettingsPage.tsx
@@ -21,6 +21,8 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
   const [clearResult, setClearResult] = useState<ClearCacheResponse | null>(null);
   const [isSaving, setIsSaving] = useState(false);
   const [saveMessage, setSaveMessage] = useState<string | null>(null);
+  const [isResyncing, setIsResyncing] = useState(false);
+  const [resyncResult, setResyncResult] = useState<{ success: boolean; message: string } | null>(null);
 
   // Komga sync state — URL and username are persisted in settings
   const [komgaUrl, setKomgaUrl] = useState("");
@@ -87,6 +89,20 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
     }
   }
 
+  async function handleSearchResync() {
+    setIsResyncing(true);
+    setResyncResult(null);
+    try {
+      const response = await fetch("/api/settings/search/resync", { method: "POST" });
+      const result = await response.json();
+      setResyncResult(result);
+    } catch {
+      setResyncResult({ success: false, message: "Failed to trigger search resync" });
+    } finally {
+      setIsResyncing(false);
+    }
+  }
+
   const fetchReports = useCallback(async () => {
     try {
       const resp = await fetch("/api/komga/reports");
@@ -147,6 +163,13 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
     }
   }
 
+  const [activeTab, setActiveTab] = useState<"general" | "integrations">("general");
+
+  const tabs = [
+    { id: "general" as const, label: "General", icon: "settings" as const },
+    { id: "integrations" as const, label: "Integrations", icon: "refresh" as const },
+  ];
+
   return (
     <>
       <div className="mb-6">
@@ -156,6 +179,24 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
         </h1>
       </div>
 
+      {/* Tab Navigation */}
+      <div className="flex gap-1 mb-6 border-b border-border">
+        {tabs.map((tab) => (
+          <button
+            key={tab.id}
+            onClick={() => setActiveTab(tab.id)}
+            className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium border-b-2 transition-colors -mb-px ${
+              activeTab === tab.id
+                ? "border-primary text-primary"
+                : "border-transparent text-muted-foreground hover:text-foreground hover:border-border"
+            }`}
+          >
+            <Icon name={tab.icon} size="sm" />
+            {tab.label}
+          </button>
+        ))}
+      </div>
+
       {saveMessage && (
         <Card className="mb-6 border-success/50 bg-success/5">
           <CardContent className="pt-6">
@@ -164,6 +205,7 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
         </Card>
       )}
 
+      {activeTab === "general" && (<>
       {/* Image Processing Settings */}
       <Card className="mb-6">
         <CardHeader>
@@ -323,6 +365,43 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
         </CardContent>
       </Card>
 
+      {/* Search Index */}
+      <Card className="mb-6">
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2">
+            <Icon name="search" size="md" />
+            Search Index
+          </CardTitle>
+          <CardDescription>Force a full resync of the Meilisearch index. This will re-index all books on the next indexer cycle.</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <div className="space-y-4">
+            {resyncResult && (
+              <div className={`p-3 rounded-lg ${resyncResult.success ? 'bg-success/10 text-success' : 'bg-destructive/10 text-destructive'}`}>
+                {resyncResult.message}
+              </div>
+            )}
+
+            <Button
+              onClick={handleSearchResync}
+              disabled={isResyncing}
+            >
+              {isResyncing ? (
+                <>
+                  <Icon name="spinner" size="sm" className="animate-spin -ml-1 mr-2" />
+                  Scheduling...
+                </>
+              ) : (
+                <>
+                  <Icon name="refresh" size="sm" className="mr-2" />
+                  Force Search Resync
+                </>
+              )}
+            </Button>
+          </div>
+        </CardContent>
+      </Card>
+
       {/* Limits Settings */}
       <Card className="mb-6">
         <CardHeader>
@@ -522,6 +601,9 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
         </CardContent>
       </Card>
 
+      </>)}
+
+      {activeTab === "integrations" && (<>
       {/* Komga Sync */}
       <Card className="mb-6">
         <CardHeader>
@@ -761,6 +843,7 @@ export default function SettingsPage({ initialSettings, initialCacheStats, initi
           </div>
         </CardContent>
       </Card>
+      </>)}
     </>
   );
 }
diff --git a/apps/backoffice/lib/api.ts b/apps/backoffice/lib/api.ts
index da7266d..f85d4a7 100644
--- a/apps/backoffice/lib/api.ts
+++ b/apps/backoffice/lib/api.ts
@@ -87,7 +87,7 @@ export type SearchHitDto = {
   id: string;
   library_id: string;
   title: string;
-  author: string | null;
+  authors: string[];
   series: string | null;
   volume: number | null;
   kind: string;
@@ -406,6 +406,12 @@ export async function getThumbnailStats() {
   return apiFetch<ThumbnailStats>("/settings/thumbnail/stats");
 }
 
+export async function forceSearchResync() {
+  return apiFetch<{ success: boolean; message: string }>("/settings/search/resync", {
+    method: "POST",
+  });
+}
+
 export async function convertBook(bookId: string) {
   return apiFetch<IndexJobDto>(`/books/${bookId}/convert`, { method: "POST" });
 }
diff --git a/apps/indexer/src/meili.rs b/apps/indexer/src/meili.rs
index 06a5091..700eaf1 100644
--- a/apps/indexer/src/meili.rs
+++ b/apps/indexer/src/meili.rs
@@ -12,7 +12,7 @@ struct SearchDoc {
     library_id: String,
     kind: String,
     title: String,
-    author: Option<String>,
+    authors: Vec<String>,
     series: Option<String>,
     volume: Option<i32>,
     language: Option<String>,
@@ -37,6 +37,13 @@ pub async fn sync_meili(pool: &PgPool, meili_url: &str, meili_master_key: &str)
         .send()
         .await;
 
+    let _ = client
+        .put(format!("{base}/indexes/books/settings/searchable-attributes"))
+        .header("Authorization", format!("Bearer {meili_master_key}"))
+        .json(&serde_json::json!(["title", "authors", "series"]))
+        .send()
+        .await;
+
     // Get last sync timestamp
     let last_sync: Option<DateTime<Utc>> = sqlx::query_scalar(
         "SELECT last_meili_sync FROM sync_metadata WHERE id = 1 AND last_meili_sync IS NOT NULL"
@@ -47,23 +54,35 @@ pub async fn sync_meili(pool: &PgPool, meili_url: &str, meili_master_key: &str)
     // If no previous sync, do a full sync
     let is_full_sync = last_sync.is_none();
     
-    // Get books to sync: all if full sync, only modified since last sync otherwise
+    // Get books to sync: all if full sync, only modified since last sync otherwise.
+    // Join series_metadata to merge series-level authors into the search document.
+    let books_query = r#"
+        SELECT b.id, b.library_id, b.kind, b.title, b.series, b.volume, b.language, b.updated_at,
+            ARRAY(
+                SELECT DISTINCT unnest(
+                    COALESCE(b.authors, CASE WHEN b.author IS NOT NULL AND b.author != '' THEN ARRAY[b.author] ELSE ARRAY[]::text[] END)
+                    || COALESCE(sm.authors, ARRAY[]::text[])
+                )
+            ) as authors
+        FROM books b
+        LEFT JOIN series_metadata sm
+            ON sm.library_id = b.library_id
+            AND sm.name = COALESCE(NULLIF(b.series, ''), 'unclassified')
+    "#;
+
     let rows = if is_full_sync {
         info!("[MEILI] Performing full sync");
-        sqlx::query(
-            "SELECT id, library_id, kind, title, author, series, volume, language, updated_at FROM books",
-        )
+        sqlx::query(books_query)
         .fetch_all(pool)
         .await?
     } else {
         let since = last_sync.unwrap();
         info!("[MEILI] Performing incremental sync since {}", since);
-        
-        // Also get deleted book IDs to remove from MeiliSearch
-        // For now, we'll do a diff approach: get all book IDs from DB and compare with Meili
-        sqlx::query(
-            "SELECT id, library_id, kind, title, author, series, volume, language, updated_at FROM books WHERE updated_at > $1",
-        )
+
+        // Include books that changed OR whose series_metadata changed
+        sqlx::query(&format!(
+            "{books_query} WHERE b.updated_at > $1 OR sm.updated_at > $1"
+        ))
         .bind(since)
         .fetch_all(pool)
         .await?
@@ -87,7 +106,7 @@ pub async fn sync_meili(pool: &PgPool, meili_url: &str, meili_master_key: &str)
             library_id: row.get::<Uuid, _>("library_id").to_string(),
             kind: row.get("kind"),
             title: row.get("title"),
-            author: row.get("author"),
+            authors: row.get::<Vec<String>, _>("authors"),
             series: row.get("series"),
             volume: row.get("volume"),
             language: row.get("language"),