diff --git a/src/app/admin/campaigns/[id]/participants/page.tsx b/src/app/admin/campaigns/[id]/participants/page.tsx
index 38c35ea..5fc52fc 100644
--- a/src/app/admin/campaigns/[id]/participants/page.tsx
+++ b/src/app/admin/campaigns/[id]/participants/page.tsx
@@ -13,11 +13,12 @@ import { Badge } from '@/components/ui/badge';
 import { Avatar, AvatarFallback } from '@/components/ui/avatar';
 import { Input } from '@/components/ui/input';
 import Navigation from '@/components/Navigation';
+import AuthGuard from '@/components/AuthGuard';
 import { Users, User, Calendar, Mail, Vote, Copy, Check } from 'lucide-react';
 
 export const dynamic = 'force-dynamic';
 
-export default function CampaignParticipantsPage() {
+function CampaignParticipantsPageContent() {
   const params = useParams();
   const campaignId = params.id as string;
   const [campaign, setCampaign] = useState<Campaign | null>(null);
@@ -369,3 +370,11 @@ export default function CampaignParticipantsPage() {
     </div>
   );
 }
+
+export default function CampaignParticipantsPage() {
+  return (
+    <AuthGuard>
+      <CampaignParticipantsPageContent />
+    </AuthGuard>
+  );
+}
diff --git a/src/app/admin/campaigns/[id]/propositions/page.tsx b/src/app/admin/campaigns/[id]/propositions/page.tsx
index 2f81d39..37bd16d 100644
--- a/src/app/admin/campaigns/[id]/propositions/page.tsx
+++ b/src/app/admin/campaigns/[id]/propositions/page.tsx
@@ -12,11 +12,12 @@ import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/com
 import { Badge } from '@/components/ui/badge';
 import { Avatar, AvatarFallback } from '@/components/ui/avatar';
 import Navigation from '@/components/Navigation';
+import AuthGuard from '@/components/AuthGuard';
 import { FileText, User, Calendar, Mail } from 'lucide-react';
 
 export const dynamic = 'force-dynamic';
 
-export default function CampaignPropositionsPage() {
+function CampaignPropositionsPageContent() {
   const params = useParams();
   const campaignId = params.id as string;
   const [campaign, setCampaign] = useState<Campaign | null>(null);
@@ -295,3 +296,11 @@ export default function CampaignPropositionsPage() {
     </div>
   );
 }
+
+export default function CampaignPropositionsPage() {
+  return (
+    <AuthGuard>
+      <CampaignPropositionsPageContent />
+    </AuthGuard>
+  );
+}
diff --git a/src/app/admin/page.tsx b/src/app/admin/page.tsx
index b43eb8b..07bca85 100644
--- a/src/app/admin/page.tsx
+++ b/src/app/admin/page.tsx
@@ -12,17 +12,19 @@ import { Badge } from '@/components/ui/badge';
 import { Input } from '@/components/ui/input';
 import { Progress } from '@/components/ui/progress';
 import Navigation from '@/components/Navigation';
+import AuthGuard from '@/components/AuthGuard';
+import { FolderOpen, Users, FileText, CheckCircle, Clock, Plus } from 'lucide-react';
 
 export const dynamic = 'force-dynamic';
 
-export default function AdminPage() {
+function AdminPageContent() {
   const [campaigns, setCampaigns] = useState<CampaignWithStats[]>([]);
   const [loading, setLoading] = useState(true);
   const [showCreateModal, setShowCreateModal] = useState(false);
   const [showEditModal, setShowEditModal] = useState(false);
   const [showDeleteModal, setShowDeleteModal] = useState(false);
   const [selectedCampaign, setSelectedCampaign] = useState<Campaign | null>(null);
-  const [copiedCampaignId, setCopiedCampaignId] = useState<string | null>(null);
+  const [searchTerm, setSearchTerm] = useState('');
 
   useEffect(() => {
     loadCampaigns();
@@ -65,23 +67,39 @@ export default function AdminPage() {
   };
 
   const getStatusBadge = (status: string) => {
-    const statusConfig = {
-      deposit: { label: 'Dépôt de propositions', variant: 'secondary' as const },
-      voting: { label: 'En cours de vote', variant: 'default' as const },
-      closed: { label: 'Terminée', variant: 'destructive' as const }
-    };
-    const config = statusConfig[status as keyof typeof statusConfig];
-    return <Badge variant={config.variant}>{config.label}</Badge>;
+    switch (status) {
+      case 'deposit':
+        return <Badge variant="secondary">Dépôt de propositions</Badge>;
+      case 'voting':
+        return <Badge variant="default">En cours de vote</Badge>;
+      case 'closed':
+        return <Badge variant="outline">Terminée</Badge>;
+      default:
+        return <Badge variant="outline">{status}</Badge>;
+    }
   };
 
   const getSpendingTiersDisplay = (tiers: string) => {
-    return tiers.split(',').map(tier => tier.trim()).join('€, ') + '€';
+    return tiers.split(',').map(tier => `${tier.trim()}€`).join(', ');
+  };
+
+  const filteredCampaigns = campaigns.filter(campaign =>
+    campaign.title.toLowerCase().includes(searchTerm.toLowerCase()) ||
+    campaign.description.toLowerCase().includes(searchTerm.toLowerCase())
+  );
+
+  const stats = {
+    total: campaigns.length,
+    deposit: campaigns.filter(c => c.status === 'deposit').length,
+    voting: campaigns.filter(c => c.status === 'voting').length,
+    closed: campaigns.filter(c => c.status === 'closed').length,
   };
 
   if (loading) {
     return (
       <div className="min-h-screen bg-slate-50 dark:bg-slate-900">
         <div className="container mx-auto px-4 py-8">
+          <Navigation />
           <div className="flex items-center justify-center h-64">
             <div className="text-center">
               <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-slate-900 dark:border-slate-100 mx-auto mb-4"></div>
@@ -102,15 +120,12 @@ export default function AdminPage() {
         <div className="mb-8">
           <div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
             <div>
-              <h1 className="text-3xl font-bold text-slate-900 dark:text-slate-100">
-                Administration
-              </h1>
-              <p className="text-slate-600 dark:text-slate-300 mt-2">
-                Gérez vos campagnes de budget participatif
-              </p>
+              <h1 className="text-3xl font-bold text-slate-900 dark:text-slate-100">Administration</h1>
+              <p className="text-slate-600 dark:text-slate-300 mt-2">Gérez vos campagnes de budget participatif</p>
             </div>
             <Button onClick={() => setShowCreateModal(true)} size="lg">
-              ✨ Nouvelle campagne
+              <Plus className="w-4 h-4 mr-2" />
+              Nouvelle campagne
             </Button>
           </div>
         </div>
@@ -122,11 +137,11 @@ export default function AdminPage() {
               <div className="flex items-center justify-between">
                 <div>
                   <p className="text-sm font-medium text-slate-600 dark:text-slate-300">Total Campagnes</p>
-                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">{campaigns.length}</p>
-                </div>
-                <div className="w-8 h-8 bg-blue-100 dark:bg-blue-900 rounded-lg flex items-center justify-center">
-                  <span className="text-blue-600 dark:text-blue-300">📊</span>
+                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">{stats.total}</p>
                 </div>
+                                  <div className="w-8 h-8 bg-blue-100 dark:bg-blue-900 rounded-lg flex items-center justify-center">
+                    <FolderOpen className="w-4 h-4 text-blue-600 dark:text-blue-300" />
+                  </div>
               </div>
             </CardContent>
           </Card>
@@ -136,12 +151,10 @@ export default function AdminPage() {
               <div className="flex items-center justify-between">
                 <div>
                   <p className="text-sm font-medium text-slate-600 dark:text-slate-300">En cours</p>
-                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">
-                    {campaigns.filter(c => c.status === 'voting').length}
-                  </p>
+                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">{stats.voting}</p>
                 </div>
                 <div className="w-8 h-8 bg-green-100 dark:bg-green-900 rounded-lg flex items-center justify-center">
-                  <span className="text-green-600 dark:text-green-300">🗳️</span>
+                  <Clock className="w-4 h-4 text-green-600 dark:text-green-300" />
                 </div>
               </div>
             </CardContent>
@@ -152,12 +165,10 @@ export default function AdminPage() {
               <div className="flex items-center justify-between">
                 <div>
                   <p className="text-sm font-medium text-slate-600 dark:text-slate-300">Dépôt</p>
-                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">
-                    {campaigns.filter(c => c.status === 'deposit').length}
-                  </p>
+                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">{stats.deposit}</p>
                 </div>
                 <div className="w-8 h-8 bg-yellow-100 dark:bg-yellow-900 rounded-lg flex items-center justify-center">
-                  <span className="text-yellow-600 dark:text-yellow-300">📝</span>
+                  <FileText className="w-4 h-4 text-yellow-600 dark:text-yellow-300" />
                 </div>
               </div>
             </CardContent>
@@ -168,39 +179,54 @@ export default function AdminPage() {
               <div className="flex items-center justify-between">
                 <div>
                   <p className="text-sm font-medium text-slate-600 dark:text-slate-300">Terminées</p>
-                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">
-                    {campaigns.filter(c => c.status === 'closed').length}
-                  </p>
+                  <p className="text-2xl font-bold text-slate-900 dark:text-slate-100">{stats.closed}</p>
                 </div>
                 <div className="w-8 h-8 bg-purple-100 dark:bg-purple-900 rounded-lg flex items-center justify-center">
-                  <span className="text-purple-600 dark:text-purple-300">✅</span>
+                  <CheckCircle className="w-4 h-4 text-purple-600 dark:text-purple-300" />
                 </div>
               </div>
             </CardContent>
           </Card>
         </div>
 
+        {/* Search */}
+        <div className="mb-6">
+          <Input
+            type="text"
+            placeholder="Rechercher une campagne..."
+            value={searchTerm}
+            onChange={(e) => setSearchTerm(e.target.value)}
+            className="max-w-md"
+          />
+        </div>
+
         {/* Campaigns List */}
-        {campaigns.length === 0 ? (
+        {filteredCampaigns.length === 0 ? (
           <Card className="border-dashed">
             <CardContent className="p-12 text-center">
-              <div className="w-16 h-16 bg-slate-100 dark:bg-slate-800 rounded-full flex items-center justify-center mx-auto mb-4">
-                <span className="text-2xl">📋</span>
-              </div>
+                              <div className="w-16 h-16 bg-slate-100 dark:bg-slate-800 rounded-full flex items-center justify-center mx-auto mb-4">
+                  <FolderOpen className="w-8 h-8 text-slate-400" />
+                </div>
               <h3 className="text-lg font-semibold text-slate-900 dark:text-slate-100 mb-2">
-                Aucune campagne créée
+                {searchTerm ? 'Aucune campagne trouvée' : 'Aucune campagne'}
               </h3>
               <p className="text-slate-600 dark:text-slate-300 mb-6">
-                Commencez par créer votre première campagne de budget participatif
+                {searchTerm 
+                  ? 'Aucune campagne ne correspond à votre recherche.'
+                  : 'Commencez par créer votre première campagne de budget participatif.'
+                }
               </p>
-              <Button onClick={() => setShowCreateModal(true)}>
-                Créer une campagne
-              </Button>
+              {!searchTerm && (
+                <Button onClick={() => setShowCreateModal(true)}>
+                  <Plus className="w-4 h-4 mr-2" />
+                  Créer une campagne
+                </Button>
+              )}
             </CardContent>
           </Card>
         ) : (
           <div className="grid gap-6">
-            {campaigns.map((campaign) => (
+            {filteredCampaigns.map((campaign) => (
               <Card key={campaign.id} className="hover:shadow-lg transition-shadow duration-200">
                 <CardHeader>
                   <div className="flex flex-col sm:flex-row sm:items-start sm:justify-between gap-4">
@@ -209,9 +235,7 @@ export default function AdminPage() {
                         <CardTitle className="text-xl">{campaign.title}</CardTitle>
                         {getStatusBadge(campaign.status)}
                       </div>
-                      <CardDescription className="text-base">
-                        {campaign.description}
-                      </CardDescription>
+                      <CardDescription className="text-base">{campaign.description}</CardDescription>
                     </div>
                     <div className="flex flex-col sm:flex-row gap-2">
                       <Button
@@ -240,10 +264,6 @@ export default function AdminPage() {
                 
                 <CardContent>
                   <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4 mb-4">
-                    <div className="text-center p-3 bg-slate-50 dark:bg-slate-800 rounded-lg">
-                      <p className="text-sm text-slate-600 dark:text-slate-300">Budget par utilisateur</p>
-                      <p className="text-lg font-semibold text-slate-900 dark:text-slate-100">{campaign.budget_per_user}€</p>
-                    </div>
                     <div className="text-center p-3 bg-slate-50 dark:bg-slate-800 rounded-lg">
                       <p className="text-sm text-slate-600 dark:text-slate-300">Propositions</p>
                       <p className="text-lg font-semibold text-slate-900 dark:text-slate-100">{campaign.stats.propositions}</p>
@@ -253,56 +273,54 @@ export default function AdminPage() {
                       <p className="text-lg font-semibold text-slate-900 dark:text-slate-100">{campaign.stats.participants}</p>
                     </div>
                     <div className="text-center p-3 bg-slate-50 dark:bg-slate-800 rounded-lg">
-                      <p className="text-sm text-slate-600 dark:text-slate-300">Paliers de dépense</p>
+                      <p className="text-sm text-slate-600 dark:text-slate-300">Budget/participant</p>
+                      <p className="text-lg font-semibold text-slate-900 dark:text-slate-100">{campaign.budget_per_user}€</p>
+                    </div>
+                    <div className="text-center p-3 bg-slate-50 dark:bg-slate-800 rounded-lg">
+                      <p className="text-sm text-slate-600 dark:text-slate-300">Paliers</p>
                       <p className="text-sm font-semibold text-slate-900 dark:text-slate-100">{getSpendingTiersDisplay(campaign.spending_tiers)}</p>
                     </div>
                   </div>
 
                   {/* Public URL for deposit campaigns */}
                   {campaign.status === 'deposit' && (
-                    <Card className="bg-blue-50 dark:bg-blue-900/20 border-blue-200 dark:border-blue-800">
-                      <CardContent className="p-4">
-                        <div className="flex items-center justify-between">
-                          <div className="flex-1">
-                            <h4 className="text-sm font-medium text-blue-900 dark:text-blue-100 mb-1">
-                              Lien public pour déposer des propositions
-                            </h4>
-                            <div className="flex items-center space-x-2">
-                              <Input
-                                type="text"
-                                readOnly
-                                value={`${window.location.origin}/campaigns/${campaign.id}/propose`}
-                                className="flex-1 text-xs bg-white dark:bg-slate-800 border-blue-300 dark:border-blue-600 text-blue-700 dark:text-blue-300 font-mono"
-                              />
-                              <Button
-                                variant="outline"
-                                size="sm"
-                                onClick={() => {
-                                  navigator.clipboard.writeText(`${window.location.origin}/campaigns/${campaign.id}/propose`);
-                                  setCopiedCampaignId(campaign.id);
-                                  setTimeout(() => setCopiedCampaignId(null), 2000);
-                                }}
-                                className="text-xs"
-                              >
-                                {copiedCampaignId === campaign.id ? 'Copié !' : '📋 Copier'}
-                              </Button>
-                            </div>
-                          </div>
-                        </div>
-                      </CardContent>
-                    </Card>
+                    <div className="mb-4 p-4 bg-blue-50 dark:bg-blue-900/20 border border-blue-200 dark:border-blue-800 rounded-lg">
+                      <h4 className="text-sm font-medium text-blue-900 dark:text-blue-100 mb-2">
+                        Lien public pour le dépôt de propositions :
+                      </h4>
+                      <div className="flex items-center space-x-2">
+                        <Input
+                          type="text"
+                          readOnly
+                          value={`${window.location.origin}/campaigns/${campaign.id}/propose`}
+                          className="flex-1 text-sm bg-white dark:bg-slate-800 border-blue-300 dark:border-blue-600 text-blue-700 dark:text-blue-300 font-mono"
+                        />
+                        <Button
+                          variant="outline"
+                          size="sm"
+                          onClick={() => {
+                            navigator.clipboard.writeText(`${window.location.origin}/campaigns/${campaign.id}/propose`);
+                          }}
+                          className="text-xs"
+                        >
+                          Copier
+                        </Button>
+                      </div>
+                    </div>
                   )}
 
                   {/* Action Buttons */}
                   <div className="flex flex-col sm:flex-row gap-2 mt-4">
                     <Button asChild variant="outline" className="flex-1">
                       <Link href={`/admin/campaigns/${campaign.id}/propositions`}>
-                        📝 Propositions ({campaign.stats.propositions})
+                        <FileText className="w-4 h-4 mr-2" />
+                        Propositions ({campaign.stats.propositions})
                       </Link>
                     </Button>
                     <Button asChild variant="outline" className="flex-1">
                       <Link href={`/admin/campaigns/${campaign.id}/participants`}>
-                        👥 Votants ({campaign.stats.participants})
+                        <Users className="w-4 h-4 mr-2" />
+                        Votants ({campaign.stats.participants})
                       </Link>
                     </Button>
                   </div>
@@ -313,30 +331,22 @@ export default function AdminPage() {
         )}
 
         {/* Modals */}
-        <CreateCampaignModal
-          isOpen={showCreateModal}
-          onClose={() => setShowCreateModal(false)}
-          onSuccess={handleCampaignCreated}
-        />
-        
+        <CreateCampaignModal isOpen={showCreateModal} onClose={() => setShowCreateModal(false)} onSuccess={handleCampaignCreated} />
         {selectedCampaign && (
-          <EditCampaignModal
-            isOpen={showEditModal}
-            onClose={() => setShowEditModal(false)}
-            onSuccess={handleCampaignEdited}
-            campaign={selectedCampaign}
-          />
+          <EditCampaignModal isOpen={showEditModal} onClose={() => setShowEditModal(false)} onSuccess={handleCampaignEdited} campaign={selectedCampaign} />
         )}
-        
         {selectedCampaign && (
-          <DeleteCampaignModal
-            isOpen={showDeleteModal}
-            onClose={() => setShowDeleteModal(false)}
-            onSuccess={handleCampaignDeleted}
-            campaign={selectedCampaign}
-          />
+          <DeleteCampaignModal isOpen={showDeleteModal} onClose={() => setShowDeleteModal(false)} onSuccess={handleCampaignDeleted} campaign={selectedCampaign} />
         )}
       </div>
     </div>
   );
 }
+
+export default function AdminPage() {
+  return (
+    <AuthGuard>
+      <AdminPageContent />
+    </AuthGuard>
+  );
+}
diff --git a/src/app/page.tsx b/src/app/page.tsx
index f6cb258..874722f 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -22,7 +22,7 @@ export default function HomePage() {
           <div className="flex flex-col sm:flex-row gap-4 justify-center">
             <Button asChild size="lg" className="text-lg px-8 py-6">
               <Link href="/admin">
-                🛠️ Espace Administration
+                🔐 Espace Administration
               </Link>
             </Button>
             <Button asChild variant="outline" size="lg" className="text-lg px-8 py-6">
diff --git a/src/components/AuthGuard.tsx b/src/components/AuthGuard.tsx
new file mode 100644
index 0000000..bd53e2c
--- /dev/null
+++ b/src/components/AuthGuard.tsx
@@ -0,0 +1,213 @@
+'use client';
+import { useEffect, useState } from 'react';
+import { useRouter } from 'next/navigation';
+import { supabase } from '@/lib/supabase';
+import { User } from '@supabase/supabase-js';
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { AlertCircle, Mail, Lock, Loader2 } from 'lucide-react';
+
+interface AuthGuardProps {
+  children: React.ReactNode;
+}
+
+export default function AuthGuard({ children }: AuthGuardProps) {
+  const [user, setUser] = useState<User | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [authMode, setAuthMode] = useState<'signin' | 'signup'>('signin');
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [authLoading, setAuthLoading] = useState(false);
+  const [error, setError] = useState('');
+  const [message, setMessage] = useState('');
+  const router = useRouter();
+
+  useEffect(() => {
+    // Vérifier l'état de l'authentification au chargement
+    const checkUser = async () => {
+      const { data: { user } } = await supabase.auth.getUser();
+      setUser(user);
+      setLoading(false);
+    };
+
+    checkUser();
+
+    // Écouter les changements d'authentification
+    const { data: { subscription } } = supabase.auth.onAuthStateChange(
+      async (event, session) => {
+        setUser(session?.user ?? null);
+        setLoading(false);
+      }
+    );
+
+    return () => subscription.unsubscribe();
+  }, []);
+
+  const handleAuth = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setAuthLoading(true);
+    setError('');
+    setMessage('');
+
+    try {
+      if (authMode === 'signin') {
+        const { error } = await supabase.auth.signInWithPassword({
+          email,
+          password,
+        });
+        if (error) throw error;
+      } else {
+        const { error } = await supabase.auth.signUp({
+          email,
+          password,
+        });
+        if (error) throw error;
+        setMessage('Vérifiez votre email pour confirmer votre inscription.');
+      }
+    } catch (error: any) {
+      setError(error.message);
+    } finally {
+      setAuthLoading(false);
+    }
+  };
+
+  const handleSignOut = async () => {
+    await supabase.auth.signOut();
+    router.push('/');
+  };
+
+  if (loading) {
+    return (
+      <div className="min-h-screen bg-slate-50 dark:bg-slate-900 flex items-center justify-center">
+        <div className="text-center">
+          <Loader2 className="w-8 h-8 animate-spin mx-auto mb-4 text-slate-600 dark:text-slate-300" />
+          <p className="text-slate-600 dark:text-slate-300">Chargement...</p>
+        </div>
+      </div>
+    );
+  }
+
+  if (!user) {
+    return (
+      <div className="min-h-screen bg-slate-50 dark:bg-slate-900 flex items-center justify-center p-4">
+        <Card className="w-full max-w-md">
+          <CardHeader className="text-center">
+            <CardTitle className="text-2xl">Administration</CardTitle>
+            <CardDescription>
+              {authMode === 'signin' 
+                ? 'Connectez-vous pour accéder à l\'administration'
+                : 'Créez un compte pour accéder à l\'administration'
+              }
+            </CardDescription>
+          </CardHeader>
+          <CardContent>
+            <form onSubmit={handleAuth} className="space-y-4">
+              {error && (
+                <div className="p-3 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg">
+                  <div className="flex items-center gap-2">
+                    <AlertCircle className="w-4 h-4 text-red-600 dark:text-red-400" />
+                    <p className="text-sm text-red-600 dark:text-red-400">{error}</p>
+                  </div>
+                </div>
+              )}
+              
+              {message && (
+                <div className="p-3 bg-green-50 dark:bg-green-900/20 border border-green-200 dark:border-green-800 rounded-lg">
+                  <p className="text-sm text-green-600 dark:text-green-400">{message}</p>
+                </div>
+              )}
+
+              <div className="space-y-2">
+                <Label htmlFor="email" className="flex items-center gap-2">
+                  <Mail className="w-4 h-4" />
+                  Email
+                </Label>
+                <Input
+                  id="email"
+                  type="email"
+                  value={email}
+                  onChange={(e) => setEmail(e.target.value)}
+                  placeholder="admin@example.com"
+                  required
+                />
+              </div>
+
+              <div className="space-y-2">
+                <Label htmlFor="password" className="flex items-center gap-2">
+                  <Lock className="w-4 h-4" />
+                  Mot de passe
+                </Label>
+                <Input
+                  id="password"
+                  type="password"
+                  value={password}
+                  onChange={(e) => setPassword(e.target.value)}
+                  placeholder="••••••••"
+                  required
+                />
+              </div>
+
+              <Button type="submit" className="w-full" disabled={authLoading}>
+                {authLoading ? (
+                  <>
+                    <Loader2 className="w-4 h-4 mr-2 animate-spin" />
+                    {authMode === 'signin' ? 'Connexion...' : 'Inscription...'}
+                  </>
+                ) : (
+                  authMode === 'signin' ? 'Se connecter' : 'S\'inscrire'
+                )}
+              </Button>
+            </form>
+
+            <div className="mt-4 text-center">
+              <Button
+                variant="link"
+                onClick={() => setAuthMode(authMode === 'signin' ? 'signup' : 'signin')}
+                className="text-sm"
+              >
+                {authMode === 'signin' 
+                  ? 'Pas de compte ? S\'inscrire'
+                  : 'Déjà un compte ? Se connecter'
+                }
+              </Button>
+            </div>
+
+            <div className="mt-4 text-center">
+              <Button variant="ghost" asChild className="text-sm">
+                <a href="/">Retour à l'accueil</a>
+              </Button>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  return (
+    <div>
+      {/* Header avec bouton de déconnexion */}
+      <div className="bg-white dark:bg-slate-800 border-b border-slate-200 dark:border-slate-700">
+        <div className="container mx-auto px-4 py-3">
+          <div className="flex items-center justify-between">
+            <div className="flex items-center gap-3">
+              <span className="text-sm text-slate-600 dark:text-slate-300">
+                Connecté en tant que :
+              </span>
+              <span className="text-sm font-medium text-slate-900 dark:text-slate-100">
+                {user.email}
+              </span>
+            </div>
+            <Button variant="outline" size="sm" onClick={handleSignOut}>
+              Se déconnecter
+            </Button>
+          </div>
+        </div>
+      </div>
+      
+      {/* Contenu protégé */}
+      {children}
+    </div>
+  );
+}