diff --git a/backend/internal/auth/jwt.go b/backend/internal/auth/jwt.go
index c369266..0ff45bb 100644
--- a/backend/internal/auth/jwt.go
+++ b/backend/internal/auth/jwt.go
@@ -20,7 +20,7 @@ func GenerateToken(userID, email, role, secret string) (string, error) {
 		Email:  email,
 		Role:   role,
 		RegisteredClaims: jwt.RegisteredClaims{
-			ExpiresAt: jwt.NewNumericDate(time.Now().Add(24 * time.Hour)),
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(7 * 24 * time.Hour)),
 			IssuedAt:  jwt.NewNumericDate(time.Now()),
 		},
 	}
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
index 02c1290..0aab391 100644
--- a/frontend/src/api/client.ts
+++ b/frontend/src/api/client.ts
@@ -14,6 +14,12 @@ async function request<T>(path: string, options: RequestInit = {}): Promise<T> {
       ...options.headers,
     },
   })
+  if (res.status === 401) {
+    localStorage.removeItem('token')
+    localStorage.removeItem('user')
+    window.location.href = '/login'
+    throw new Error('Session expirée')
+  }
   if (!res.ok) {
     const err = await res.json().catch(() => ({ error: res.statusText }))
     throw new Error(err.error || res.statusText)
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 55912cb..9a753d6 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -37,3 +37,8 @@
 ::-webkit-scrollbar { width: 6px; height: 6px; }
 ::-webkit-scrollbar-track { @apply bg-muted; }
 ::-webkit-scrollbar-thumb { @apply bg-border rounded-full; }
+
+@layer utilities {
+  .scrollbar-none { scrollbar-width: none; }
+  .scrollbar-none::-webkit-scrollbar { display: none; }
+}
diff --git a/frontend/src/pages/admin/AdminLayout.tsx b/frontend/src/pages/admin/AdminLayout.tsx
index 6bf87b2..eae71c0 100644
--- a/frontend/src/pages/admin/AdminLayout.tsx
+++ b/frontend/src/pages/admin/AdminLayout.tsx
@@ -1,12 +1,47 @@
-import { Outlet, Navigate } from 'react-router-dom'
+import { NavLink, Outlet, Navigate } from 'react-router-dom'
+import { Cpu, Key, Database, ClipboardList, Users, CalendarDays, Settings } from 'lucide-react'
 import { useAuth } from '@/lib/auth'
+import { cn } from '@/lib/cn'
+
+const adminItems = [
+  { to: '/admin/ai',          icon: Cpu,          label: 'Fournisseurs IA' },
+  { to: '/admin/credentials', icon: Key,          label: 'Identifiants' },
+  { to: '/admin/sources',     icon: Database,     label: 'Sources' },
+  { to: '/admin/jobs',        icon: ClipboardList,label: 'Jobs' },
+  { to: '/admin/users',       icon: Users,        label: 'Utilisateurs' },
+  { to: '/admin/schedule',    icon: CalendarDays, label: 'Planning' },
+  { to: '/admin/settings',    icon: Settings,     label: 'Paramètres' },
+]
 
 export function AdminLayout() {
   const { isAdmin } = useAuth()
   if (!isAdmin) return <Navigate to="/" replace />
   return (
-    <div className="p-6">
-      <Outlet />
+    <div>
+      {/* Mobile sub-nav — scrollable horizontal tabs */}
+      <nav className="md:hidden flex overflow-x-auto border-b bg-card scrollbar-none sticky top-0 z-10">
+        {adminItems.map(({ to, icon: Icon, label }) => (
+          <NavLink
+            key={to}
+            to={to}
+            className={({ isActive }) =>
+              cn(
+                'flex shrink-0 flex-col items-center gap-1 px-4 py-3 text-xs font-medium transition-colors border-b-2',
+                isActive
+                  ? 'border-primary text-primary'
+                  : 'border-transparent text-muted-foreground'
+              )
+            }
+          >
+            <Icon className="h-4 w-4" />
+            {label}
+          </NavLink>
+        ))}
+      </nav>
+
+      <div className="p-6">
+        <Outlet />
+      </div>
     </div>
   )
 }
diff --git a/frontend/src/pages/admin/Sources.tsx b/frontend/src/pages/admin/Sources.tsx
index 95fcbce..82c0208 100644
--- a/frontend/src/pages/admin/Sources.tsx
+++ b/frontend/src/pages/admin/Sources.tsx
@@ -34,12 +34,12 @@ export function Sources() {
       <div className="space-y-3">
         {sources.map(s => (
           <Card key={s.id}>
-            <CardContent className="flex items-center justify-between py-4">
+            <CardContent className="flex flex-col gap-3 py-4 sm:flex-row sm:items-center sm:justify-between">
               <div>
                 <span className="font-semibold">{s.name}</span>
                 <span className="ml-2 text-xs text-muted-foreground capitalize">({s.type})</span>
               </div>
-              <div className="flex items-center gap-3">
+              <div className="flex items-center gap-2">
                 <Badge variant={s.enabled ? 'default' : 'outline'}>
                   {s.enabled ? 'Activée' : 'Désactivée'}
                 </Badge>