diff --git a/client/public/__manus__/version.json b/client/public/__manus__/version.json
index 31a49ea..9ef06ca 100644
--- a/client/public/__manus__/version.json
+++ b/client/public/__manus__/version.json
@@ -1,4 +1,4 @@
 {
-  "version": "f01773b1",
-  "timestamp": 1782481858153
+  "version": "c7ed64d2",
+  "timestamp": 1782483733259
 }
\ No newline at end of file
diff --git a/client/src/pages/VeilleDashboard.tsx b/client/src/pages/VeilleDashboard.tsx
index 395bee5..d8d7473 100644
--- a/client/src/pages/VeilleDashboard.tsx
+++ b/client/src/pages/VeilleDashboard.tsx
@@ -1,4 +1,4 @@
-import { useState, useMemo, useEffect } from "react";
+import { useState, useMemo } from "react";
 import { useLocalAuth } from "@/contexts/LocalAuthContext";
 import { toast } from "sonner";
 import { trpc } from "@/lib/trpc";
@@ -19,7 +19,6 @@ import {
   ExternalLink,
   Calendar,
   MapPin,
-  Tag,
   Layers,
   FileSearch,
   Loader2,
@@ -30,6 +29,7 @@ import {
   BookOpen,
   Trash2,
   AlertTriangle,
+  EyeOff,
 } from "lucide-react";
 import {
   AlertDialog,
@@ -47,6 +47,7 @@ import { format } from "date-fns";
 import { fr } from "date-fns/locale";
 
 type TypeVeille = "reglementaire" | "concurrentielle" | "technologique" | "informationnelle";
+type ReadFilter = "unread" | "all" | "read";
 
 interface VeilleItem {
   id: number;
@@ -150,7 +151,6 @@ function VeilleDetailDialog({
 
           {/* Métadonnées en grille */}
           <div className="grid grid-cols-2 sm:grid-cols-3 gap-3">
-
             {item.niveau && (
               <div className="flex items-start gap-2 p-3 rounded-lg bg-violet-50 border border-violet-200">
                 <Layers size={14} className="text-violet-500 mt-0.5 shrink-0" />
@@ -205,7 +205,6 @@ function VeilleDetailDialog({
             </div>
           )}
 
-
           {/* Lien externe */}
           {item.lien && (
             <div className="pt-1 border-t border-border/50">
@@ -258,12 +257,19 @@ export default function VeilleDashboard() {
       toast.error(`Erreur lors de la purge : ${err.message}`);
     },
   });
-  const [viewMode, setViewMode] = useState<"list" | "grid">("list");
+
+  // ── État UI ─────────────────────────────────────────────────────────────────
+  // Mode vignette par défaut
+  const [viewMode, setViewMode] = useState<"list" | "grid">("grid");
   const [activeTab, setActiveTab] = useState<TypeVeille | "all">("all");
   const [page, setPage] = useState(1);
   const [filterValues, setFilterValues] = useState<Record<string, string>>({});
   const [selectedItem, setSelectedItem] = useState<VeilleItem | null>(null);
   const [dialogOpen, setDialogOpen] = useState(false);
+  // Filtre Lu/Non lu — Non lu par défaut
+  const [readFilter, setReadFilter] = useState<ReadFilter>("unread");
+  // Ligne sélectionnée en mode liste
+  const [selectedRowId, setSelectedRowId] = useState<number | null>(null);
 
   const filtersQuery = trpc.veille.filters.useQuery();
 
@@ -294,16 +300,22 @@ export default function VeilleDashboard() {
   const openDetail = (item: VeilleItem) => {
     setSelectedItem(item);
     setDialogOpen(true);
-    // Marquer comme lu automatiquement à l'ouverture du détail
     if (!readIds.has(item.id)) {
       markAsReadMutation.mutate({ articleId: item.id });
     }
   };
 
-  const items = (itemsQuery.data?.items ?? []) as VeilleItem[];
+  const allItems = (itemsQuery.data?.items ?? []) as VeilleItem[];
   const total = itemsQuery.data?.total ?? 0;
   const totalPages = Math.ceil(total / PAGE_SIZE);
 
+  // Filtrage Lu/Non lu côté client (readIds est local à la session)
+  const items = useMemo(() => {
+    if (readFilter === "unread") return allItems.filter((i) => !readIds.has(i.id));
+    if (readFilter === "read") return allItems.filter((i) => readIds.has(i.id));
+    return allItems;
+  }, [allItems, readIds, readFilter]);
+
   const filterOptions = [
     { key: "niveau", label: "Niveau", options: filtersQuery.data?.niveaux ?? [] },
     { key: "territoire", label: "Territoire", options: filtersQuery.data?.territoires ?? [] },
@@ -311,6 +323,14 @@ export default function VeilleDashboard() {
     { key: "dateTo", label: "Date jusqu'à", type: "date" as const },
   ];
 
+  // Labels et styles du bouton Lu/Non lu
+  const READ_FILTER_LABELS: Record<ReadFilter, string> = {
+    unread: "Non lus",
+    all: "Tous",
+    read: "Lus",
+  };
+  const READ_FILTER_ORDER: ReadFilter[] = ["unread", "all", "read"];
+
   return (
     <div className="p-6 space-y-6 animate-fade-up">
       {/* En-tête */}
@@ -319,21 +339,22 @@ export default function VeilleDashboard() {
           <div className="flex items-center gap-2 mb-1">
             <FileSearch size={22} className="text-primary" />
             <h1 className="text-2xl font-bold text-foreground">Veille Stratégique</h1>
-          {unreadCount > 0 && (
-            <span className="inline-flex items-center justify-center min-w-[20px] h-5 px-1.5 rounded-full bg-primary text-primary-foreground text-[11px] font-bold">{unreadCount}</span>
-          )}
+            {unreadCount > 0 && (
+              <span className="inline-flex items-center justify-center min-w-[20px] h-5 px-1.5 rounded-full bg-primary text-primary-foreground text-[11px] font-bold">{unreadCount}</span>
+            )}
           </div>
           <p className="text-muted-foreground text-sm">
             Suivi réglementaire, concurrentiel, technologique et informationnel
           </p>
         </div>
-        <div className="flex items-center gap-2">
+        <div className="flex items-center gap-2 flex-wrap">
           {unreadCount > 0 && (
             <Button variant="outline" size="sm" onClick={() => markAllAsReadMutation.mutate()} disabled={markAllAsReadMutation.isPending} className="gap-2 text-muted-foreground">
               <Eye size={15} />
               Tout marquer comme lu
             </Button>
           )}
+          {/* Boutons mode d'affichage */}
           <Button variant={viewMode === "list" ? "default" : "outline"} size="sm" onClick={() => setViewMode("list")} className="gap-2">
             <List size={15} />Liste
           </Button>
@@ -341,7 +362,6 @@ export default function VeilleDashboard() {
             <LayoutGrid size={15} />Vignettes
           </Button>
           {isAdmin && (
-            <>
             <AlertDialog>
               <AlertDialogTrigger asChild>
                 <Button variant="outline" size="sm" className="gap-2 border-destructive/50 text-destructive hover:bg-destructive hover:text-destructive-foreground ml-2">
@@ -357,8 +377,8 @@ export default function VeilleDashboard() {
                   </AlertDialogTitle>
                   <AlertDialogDescription asChild>
                     <div className="space-y-2">
-                      <p>Cette action va <strong>supprimer définitivement</strong> toutes les entrées de la veille stratégique (réglementaire, concurrentielle, technologique et générale).</p>
-                      <p className="text-destructive font-medium">Cette opération est irréversible. Les données ne pourront pas être récupérées.</p>
+                      <p>Cette action va <strong>supprimer définitivement</strong> toutes les entrées de la veille stratégique.</p>
+                      <p className="text-destructive font-medium">Cette opération est irréversible.</p>
                     </div>
                   </AlertDialogDescription>
                 </AlertDialogHeader>
@@ -374,19 +394,44 @@ export default function VeilleDashboard() {
                 </AlertDialogFooter>
               </AlertDialogContent>
             </AlertDialog>
-            </>
           )}
         </div>
       </div>
-      {/* Onglets */}
-      <Tabs value={activeTab} onValueChange={(v) => { setActiveTab(v as TypeVeille | "all"); setPage(1); }}>
-        <TabsList className="bg-muted/50">
-          <TabsTrigger value="all">Tous</TabsTrigger>
-          {(Object.keys(TYPE_LABELS) as TypeVeille[]).map((t) => (
-            <TabsTrigger key={t} value={t}>{TYPE_LABELS[t]}</TabsTrigger>
+
+      {/* Onglets type de veille + bouton Lu/Non lu */}
+      <div className="flex items-center justify-between gap-4 flex-wrap">
+        <Tabs value={activeTab} onValueChange={(v) => { setActiveTab(v as TypeVeille | "all"); setPage(1); }}>
+          <TabsList className="bg-muted/50">
+            <TabsTrigger value="all">Tous</TabsTrigger>
+            {(Object.keys(TYPE_LABELS) as TypeVeille[]).map((t) => (
+              <TabsTrigger key={t} value={t}>{TYPE_LABELS[t]}</TabsTrigger>
+            ))}
+          </TabsList>
+        </Tabs>
+
+        {/* Bouton segmenté Lu / Non lu */}
+        <div className="flex items-center rounded-lg border border-border overflow-hidden shadow-sm">
+          {READ_FILTER_ORDER.map((f) => (
+            <button
+              key={f}
+              onClick={() => setReadFilter(f)}
+              className={cn(
+                "px-3 py-1.5 text-xs font-medium transition-colors flex items-center gap-1.5",
+                readFilter === f
+                  ? "bg-primary text-primary-foreground"
+                  : "bg-background text-muted-foreground hover:bg-muted/50"
+              )}
+            >
+              {f === "unread" && <EyeOff size={12} />}
+              {f === "read" && <Eye size={12} />}
+              {READ_FILTER_LABELS[f]}
+              {f === "unread" && unreadCount > 0 && (
+                <span className="ml-0.5 inline-flex items-center justify-center min-w-[16px] h-4 px-1 rounded-full bg-primary-foreground/20 text-[10px] font-bold">{unreadCount}</span>
+              )}
+            </button>
           ))}
-        </TabsList>
-      </Tabs>
+        </div>
+      </div>
 
       {/* Filtres */}
       <FilterBar
@@ -406,11 +451,23 @@ export default function VeilleDashboard() {
       ) : items.length === 0 ? (
         <div className="flex flex-col items-center justify-center py-24 text-center">
           <FileSearch size={48} className="text-muted-foreground/30 mb-4" />
-          <p className="text-muted-foreground font-medium">Aucun résultat trouvé</p>
-          <p className="text-muted-foreground/60 text-sm mt-1">Modifiez vos filtres ou importez des données</p>
+          <p className="text-muted-foreground font-medium">
+            {readFilter === "unread" ? "Aucun article non lu" : "Aucun résultat trouvé"}
+          </p>
+          <p className="text-muted-foreground/60 text-sm mt-1">
+            {readFilter === "unread"
+              ? "Tous les articles ont été lus, ou modifiez le filtre Lu/Non lu"
+              : "Modifiez vos filtres ou importez des données"}
+          </p>
         </div>
       ) : viewMode === "list" ? (
-        <VeilleListView items={items} onDetail={openDetail} readIds={readIds} />
+        <VeilleListView
+          items={items}
+          onDetail={openDetail}
+          readIds={readIds}
+          selectedRowId={selectedRowId}
+          onSelectRow={setSelectedRowId}
+        />
       ) : (
         <VeilleGridView items={items} onDetail={openDetail} readIds={readIds} />
       )}
@@ -440,13 +497,25 @@ export default function VeilleDashboard() {
 
 // ─── Vue Liste ────────────────────────────────────────────────────────────────
 
-function VeilleListView({ items, onDetail, readIds }: { items: VeilleItem[]; onDetail: (item: VeilleItem) => void; readIds: Set<number> }) {
+function VeilleListView({
+  items,
+  onDetail,
+  readIds,
+  selectedRowId,
+  onSelectRow,
+}: {
+  items: VeilleItem[];
+  onDetail: (item: VeilleItem) => void;
+  readIds: Set<number>;
+  selectedRowId: number | null;
+  onSelectRow: (id: number | null) => void;
+}) {
   return (
     <div className="rounded-xl border border-border overflow-hidden shadow-sm">
       <div className="overflow-x-auto">
         <table className="w-full text-sm">
           <thead>
-            <tr className="bg-muted/50 border-b border-border">
+            <tr className="bg-muted/60 border-b border-border">
               <th className="text-left px-4 py-3 font-semibold text-muted-foreground w-8">#</th>
               <th className="text-left px-4 py-3 font-semibold text-muted-foreground">Titre</th>
               <th className="text-left px-4 py-3 font-semibold text-muted-foreground w-32">Type</th>
@@ -456,55 +525,86 @@ function VeilleListView({ items, onDetail, readIds }: { items: VeilleItem[]; onD
               <th className="text-left px-4 py-3 font-semibold text-muted-foreground w-20">Actions</th>
             </tr>
           </thead>
-          <tbody className="divide-y divide-border">
-            {items.map((item, idx) => (
-              <tr key={item.id} className={cn("hover:bg-muted/30 transition-colors border-l-4", TYPE_ACCENT[item.typeVeille] || "border-l-transparent", !readIds.has(item.id) && "bg-blue-50/30")}>
-                <td className="px-4 py-3 text-muted-foreground/50 text-xs">{idx + 1}</td>
-                <td className="px-4 py-3">
-                  <div className="max-w-md flex items-start gap-2">
-                    {!readIds.has(item.id) && (
-                      <span className="mt-1.5 w-2 h-2 rounded-full bg-primary flex-shrink-0" title="Non lu" />
-                    )}
-                    <div>
-                      <p className={cn("font-medium line-clamp-2 leading-snug", readIds.has(item.id) ? "text-muted-foreground" : "text-foreground")}>{item.titre}</p>
-                      {(item.iaResume || item.resume) && <p className="text-xs text-muted-foreground mt-1 line-clamp-2">{item.iaResume || item.resume}</p>}
+          <tbody>
+            {items.map((item, idx) => {
+              const isSelected = selectedRowId === item.id;
+              const isRead = readIds.has(item.id);
+              // Alternance de couleurs : pair = blanc, impair = gris très léger
+              const isEven = idx % 2 === 0;
+
+              return (
+                <tr
+                  key={item.id}
+                  onClick={() => onSelectRow(isSelected ? null : item.id)}
+                  className={cn(
+                    "border-b border-border/50 border-l-4 cursor-pointer transition-colors",
+                    TYPE_ACCENT[item.typeVeille] || "border-l-transparent",
+                    // Ligne sélectionnée — priorité maximale
+                    isSelected
+                      ? "bg-primary/10 hover:bg-primary/15"
+                      // Non sélectionnée : alternance pair/impair
+                      : isEven
+                        ? "bg-white hover:bg-primary/5"
+                        : "bg-slate-50/80 hover:bg-primary/5"
+                  )}
+                >
+                  <td className="px-4 py-3 text-muted-foreground/50 text-xs">{idx + 1}</td>
+                  <td className="px-4 py-3">
+                    <div className="max-w-md flex items-start gap-2">
+                      {!isRead && (
+                        <span className="mt-1.5 w-2 h-2 rounded-full bg-primary flex-shrink-0" title="Non lu" />
+                      )}
+                      <div>
+                        <p className={cn(
+                          "font-medium line-clamp-2 leading-snug",
+                          isRead ? "text-muted-foreground" : "text-foreground",
+                          isSelected && "text-primary font-semibold"
+                        )}>
+                          {item.titre}
+                        </p>
+                        {(item.iaResume || item.resume) && (
+                          <p className="text-xs text-muted-foreground mt-1 line-clamp-2">
+                            {item.iaResume || item.resume}
+                          </p>
+                        )}
+                      </div>
                     </div>
-                  </div>
-                </td>
-                <td className="px-4 py-3">
-                  <Badge variant="outline" className={cn("text-xs", TYPE_COLORS[item.typeVeille])}>
-                    {TYPE_LABELS[item.typeVeille as TypeVeille] || item.typeVeille}
-                  </Badge>
-                </td>
-                <td className="px-4 py-3 text-muted-foreground text-xs">{item.niveau || "—"}</td>
-                <td className="px-4 py-3 text-muted-foreground text-xs">{item.territoire || "—"}</td>
-                <td className="px-4 py-3 text-muted-foreground text-xs whitespace-nowrap">{formatDate(item.datePublication) || "—"}</td>
-                <td className="px-4 py-3">
-                  <div className="flex items-center gap-1.5">
-                    {/* Bouton Détail — bleu */}
-                    <button
-                      onClick={() => onDetail(item)}
-                      className="inline-flex items-center justify-center w-7 h-7 rounded-md bg-blue-50 text-blue-600 hover:bg-blue-100 hover:text-blue-700 transition-colors border border-blue-200"
-                      title="Voir le détail complet"
-                    >
-                      <Eye size={13} />
-                    </button>
-                    {/* Bouton Lien externe — vert */}
-                    {item.lien && (
-                      <a
-                        href={item.lien}
-                        target="_blank"
-                        rel="noopener noreferrer"
-                        className="inline-flex items-center justify-center w-7 h-7 rounded-md bg-emerald-50 text-emerald-600 hover:bg-emerald-100 hover:text-emerald-700 transition-colors border border-emerald-200"
-                        title="Ouvrir la source"
+                  </td>
+                  <td className="px-4 py-3">
+                    <Badge variant="outline" className={cn("text-xs", TYPE_COLORS[item.typeVeille])}>
+                      {TYPE_LABELS[item.typeVeille as TypeVeille] || item.typeVeille}
+                    </Badge>
+                  </td>
+                  <td className="px-4 py-3 text-muted-foreground text-xs">{item.niveau || "—"}</td>
+                  <td className="px-4 py-3 text-muted-foreground text-xs">{item.territoire || "—"}</td>
+                  <td className="px-4 py-3 text-muted-foreground text-xs whitespace-nowrap">
+                    {formatDate(item.datePublication) || "—"}
+                  </td>
+                  <td className="px-4 py-3" onClick={(e) => e.stopPropagation()}>
+                    <div className="flex items-center gap-1.5">
+                      <button
+                        onClick={() => onDetail(item)}
+                        className="inline-flex items-center justify-center w-7 h-7 rounded-md bg-blue-50 text-blue-600 hover:bg-blue-100 hover:text-blue-700 transition-colors border border-blue-200"
+                        title="Voir le détail complet"
                       >
-                        <ExternalLink size={13} />
-                      </a>
-                    )}
-                  </div>
-                </td>
-              </tr>
-            ))}
+                        <Eye size={13} />
+                      </button>
+                      {item.lien && (
+                        <a
+                          href={item.lien}
+                          target="_blank"
+                          rel="noopener noreferrer"
+                          className="inline-flex items-center justify-center w-7 h-7 rounded-md bg-emerald-50 text-emerald-600 hover:bg-emerald-100 hover:text-emerald-700 transition-colors border border-emerald-200"
+                          title="Ouvrir la source"
+                        >
+                          <ExternalLink size={13} />
+                        </a>
+                      )}
+                    </div>
+                  </td>
+                </tr>
+              );
+            })}
           </tbody>
         </table>
       </div>
@@ -514,18 +614,32 @@ function VeilleListView({ items, onDetail, readIds }: { items: VeilleItem[]; onD
 
 // ─── Vue Vignettes ────────────────────────────────────────────────────────────
 
-function VeilleGridView({ items, onDetail, readIds }: { items: VeilleItem[]; onDetail: (item: VeilleItem) => void; readIds: Set<number> }) {
+function VeilleGridView({
+  items,
+  onDetail,
+  readIds,
+}: {
+  items: VeilleItem[];
+  onDetail: (item: VeilleItem) => void;
+  readIds: Set<number>;
+}) {
   return (
     <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
       {items.map((item) => (
-        <Card key={item.id} className={cn("group hover:shadow-md transition-all duration-200 border-border overflow-hidden border-l-4", TYPE_ACCENT[item.typeVeille] || "", !readIds.has(item.id) && "ring-1 ring-primary/20")}>
+        <Card
+          key={item.id}
+          className={cn(
+            "group hover:shadow-md transition-all duration-200 border-border overflow-hidden border-l-4",
+            TYPE_ACCENT[item.typeVeille] || "",
+            !readIds.has(item.id) && "ring-1 ring-primary/20"
+          )}
+        >
           <CardHeader className="pb-2 pt-4 px-4">
             <div className="flex items-start justify-between gap-2">
               <Badge variant="outline" className={cn("text-xs flex-shrink-0", TYPE_COLORS[item.typeVeille])}>
                 {TYPE_LABELS[item.typeVeille as TypeVeille] || item.typeVeille}
               </Badge>
               <div className="flex items-center gap-1.5 flex-shrink-0">
-                {/* Bouton Détail */}
                 <button
                   onClick={() => onDetail(item)}
                   className="text-muted-foreground hover:text-primary transition-colors"
@@ -534,21 +648,37 @@ function VeilleGridView({ items, onDetail, readIds }: { items: VeilleItem[]; onD
                   <Eye size={14} />
                 </button>
                 {item.lien && (
-                  <a href={item.lien} target="_blank" rel="noopener noreferrer" className="text-muted-foreground hover:text-accent transition-colors">
+                  <a
+                    href={item.lien}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="text-muted-foreground hover:text-accent transition-colors"
+                  >
                     <ExternalLink size={14} />
                   </a>
                 )}
               </div>
             </div>
             <div className="flex items-start gap-1.5 mt-2">
-              {!readIds.has(item.id) && <span className="mt-1 w-2 h-2 rounded-full bg-primary flex-shrink-0" title="Non lu" />}
-              <h3 className={cn("font-semibold text-sm leading-snug line-clamp-3", readIds.has(item.id) ? "text-muted-foreground" : "text-foreground")}>{item.titre}</h3>
+              {!readIds.has(item.id) && (
+                <span className="mt-1 w-2 h-2 rounded-full bg-primary flex-shrink-0" title="Non lu" />
+              )}
+              <h3 className={cn(
+                "font-semibold text-sm leading-snug line-clamp-3",
+                readIds.has(item.id) ? "text-muted-foreground" : "text-foreground"
+              )}>
+                {item.titre}
+              </h3>
             </div>
           </CardHeader>
           <CardContent className="px-4 pb-4 space-y-2">
-            {(item.iaResume || item.resume) && <p className="text-xs text-muted-foreground line-clamp-3 leading-relaxed">{item.iaResume || item.resume}</p>}
+            {(item.iaResume || item.resume) && (
+              <p className="text-xs text-muted-foreground line-clamp-3 leading-relaxed">
+                {item.iaResume || item.resume}
+              </p>
+            )}
             <div className="flex flex-wrap gap-1.5 pt-1">
-                {item.territoire && (
+              {item.territoire && (
                 <span className="inline-flex items-center gap-1 text-xs px-1.5 py-0.5 rounded bg-teal-50 text-teal-700 border border-teal-200">
                   <MapPin size={10} />{item.territoire}
                 </span>
diff --git a/todo.md b/todo.md
index 2819954..531a461 100644
--- a/todo.md
+++ b/todo.md
@@ -168,5 +168,10 @@
 - [x] rssEngine.ts : ajouter filtre `if (!aiResult.relevant) { skip; continue; }` avant insertion veille_items
 - [x] rssEngine.ts : même filtre avant insertion aap_items
 - [x] 21 tests passés, 0 erreur TypeScript
-- [ ] Déployer en recette
+- [x] Déployer en recette
 - [ ] Déployer en production
+- [x] Mode vignette par défaut
+- [x] Alternance de couleurs en mode liste (pair=blanc, impair=gris clair)
+- [x] Couleur de sélection au clic sur une ligne (bg-primary/10)
+- [x] Filtre Lu/Non lu avec bouton segmenté (Non lu par défaut)
+- [x] Message vide adapté selon le filtre actif