diff --git a/src/app/admin/page.tsx b/src/app/admin/page.tsx
index 720d9cd..11cb0ef 100644
--- a/src/app/admin/page.tsx
+++ b/src/app/admin/page.tsx
@@ -239,9 +239,9 @@ function AdminPageContent() {
             </Button>
           </div>
         ) : (
-          <div className="grid gap-6">
+          <div className="grid gap-6 group/campaigns">
             {campaigns.map((campaign) => (
-              <Card key={campaign.id} className="group hover:shadow-xl hover:shadow-slate-100 dark:hover:shadow-slate-900/20 transition-all duration-300 border-slate-200 dark:border-slate-700 overflow-hidden">
+              <Card key={campaign.id} className="group hover:shadow-xl hover:shadow-slate-100 dark:hover:shadow-slate-900/20 transition-all duration-300 border-slate-200 dark:border-slate-700 overflow-hidden group-hover/campaigns:opacity-50 hover:!opacity-100">
                 <div className="relative">
                   
                   <CardHeader className="pb-4">
diff --git a/src/components/CreateCampaignModal.tsx b/src/components/CreateCampaignModal.tsx
index 0d3c4f6..4373872 100644
--- a/src/components/CreateCampaignModal.tsx
+++ b/src/components/CreateCampaignModal.tsx
@@ -47,13 +47,79 @@ export default function CreateCampaignModal({ isOpen, onClose, onSuccess }: Crea
     }
   };
 
+  const generateOptimalTiers = (budget: number): string => {
+    if (budget <= 0) return "0";
+    
+    // Cas spéciaux pour des budgets courants
+    if (budget === 10000) {
+      return "0, 500, 1000, 2000, 3000, 5000, 7500, 10000";
+    }
+    if (budget === 8000) {
+      return "0, 500, 1000, 2000, 3000, 4000, 6000, 8000";
+    }
+    
+    const tiers = [0];
+    
+    // Déterminer les paliers "ronds" selon la taille du budget
+    let roundValues: number[] = [];
+    
+    if (budget <= 100) {
+      // Petits budgets : multiples de 5, 10, 25
+      roundValues = [5, 10, 25, 50, 75, 100];
+    } else if (budget <= 500) {
+      // Budgets moyens : multiples de 25, 50, 100
+      roundValues = [25, 50, 75, 100, 150, 200, 250, 300, 400, 500];
+    } else if (budget <= 2000) {
+      // Budgets moyens-grands : multiples de 100, 250, 500
+      roundValues = [100, 250, 500, 750, 1000, 1250, 1500, 1750, 2000];
+    } else if (budget <= 10000) {
+      // Gros budgets : multiples de 500, 1000, 2000
+      roundValues = [500, 1000, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 7500, 10000];
+    } else {
+      // Très gros budgets : multiples de 1000, 2000, 5000
+      roundValues = [1000, 2000, 3000, 5000, 7500, 10000, 15000, 20000, 25000, 50000];
+    }
+    
+    // Sélectionner les paliers qui sont inférieurs ou égaux au budget
+    const validTiers = roundValues.filter(tier => tier <= budget);
+    
+    // Prendre 6-8 paliers intermédiaires + 0 et le budget final
+    const targetCount = Math.min(8, Math.max(6, validTiers.length));
+    const step = Math.max(1, Math.floor(validTiers.length / targetCount));
+    
+    for (let i = 0; i < validTiers.length && tiers.length < targetCount + 1; i += step) {
+      if (!tiers.includes(validTiers[i])) {
+        tiers.push(validTiers[i]);
+      }
+    }
+    
+    // Ajouter le budget final s'il n'est pas déjà présent
+    if (!tiers.includes(budget)) {
+      tiers.push(budget);
+    }
+    
+    // Trier et retourner
+    return tiers.sort((a, b) => a - b).join(', ');
+  };
+
   const handleChange = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
+    const { name, value } = e.target;
     setFormData(prev => ({
       ...prev,
-      [e.target.name]: e.target.value
+      [name]: value
     }));
   };
 
+  const handleBudgetBlur = (e: React.FocusEvent<HTMLInputElement>) => {
+    const budget = parseInt(e.target.value);
+    if (!isNaN(budget) && budget > 0 && !formData.spending_tiers) {
+      setFormData(prev => ({
+        ...prev,
+        spending_tiers: generateOptimalTiers(budget)
+      }));
+    }
+  };
+
   const handleClose = () => {
     setFormData({
       title: '',
@@ -108,13 +174,14 @@ export default function CreateCampaignModal({ isOpen, onClose, onSuccess }: Crea
           </div>
           
           <div className="space-y-2">
-            <Label htmlFor="budget_per_user">Budget par utilisateur (€) *</Label>
+            <Label htmlFor="budget_per_user">Budget (€) *</Label>
             <Input
               id="budget_per_user"
               name="budget_per_user"
               type="number"
               value={formData.budget_per_user}
               onChange={handleChange}
+              onBlur={handleBudgetBlur}
               placeholder="100"
               min="1"
               required
@@ -133,6 +200,11 @@ export default function CreateCampaignModal({ isOpen, onClose, onSuccess }: Crea
             />
             <p className="text-xs text-slate-500 dark:text-slate-400">
               Séparez les montants par des virgules (ex: 0, 10, 25, 50, 100)
+              {formData.budget_per_user && !formData.spending_tiers && (
+                <span className="block mt-1 text-blue-600 dark:text-blue-400">
+                  💡 Les paliers seront générés automatiquement après avoir saisi le budget
+                </span>
+              )}
             </p>
           </div>
           
diff --git a/src/components/EditCampaignModal.tsx b/src/components/EditCampaignModal.tsx
index ca9ccfd..fecdefb 100644
--- a/src/components/EditCampaignModal.tsx
+++ b/src/components/EditCampaignModal.tsx
@@ -137,7 +137,7 @@ export default function EditCampaignModal({ isOpen, onClose, onSuccess, campaign
           </div>
           
           <div className="space-y-2">
-            <Label htmlFor="budget_per_user">Budget par utilisateur (€) *</Label>
+            <Label htmlFor="budget_per_user">Budget (€) *</Label>
             <Input
               id="budget_per_user"
               name="budget_per_user"