diff --git a/src/components/widgets/NewTicketWidget.tsx b/src/components/widgets/NewTicketWidget.tsx
index cc73dcc..ed9305d 100644
--- a/src/components/widgets/NewTicketWidget.tsx
+++ b/src/components/widgets/NewTicketWidget.tsx
@@ -5,6 +5,8 @@ import { Button } from '@/components/ui/Button';
 import { Input } from '@/components/ui/Input';
 import { Select } from '@/components/ui/Select';
 import { Textarea } from '@/components/ui/Textarea';
+import type { TicketCategory } from '@/types/Category';
+import type { ButtonVariantStyle } from '@/styles/VariantStyle';
 
 interface NewTicketWidgetProps {
   onCancel: () => void;
@@ -15,13 +17,13 @@ export const NewTicketWidget: React.FC<NewTicketWidgetProps> = ({ onCancel, onSu
   const { createTicket, isSubmitting, error } = useCreateTicket();
 
   // États locaux isolés dans le widget
-  const [category, setCategory] = useState<'Incident Critique' | 'Évolution' | 'Administratif'>('Incident Critique');
+  const [category, setCategory] = useState<TicketCategory>('Incident Critique');
   const [ci, setCi] = useState('general');
   const [subject, setSubject] = useState('');
   const [affectedAsset, setAffectedAsset] = useState('');
   const [incidentTime, setIncidentTime] = useState('');
   const [description, setDescription] = useState('');
-  const [buttonVariant, setButtonVariant]=useState('primary');
+  const [buttonVariant, setButtonVariant]=useState<ButtonVariantStyle>('primary');
 
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
@@ -62,7 +64,7 @@ export const NewTicketWidget: React.FC<NewTicketWidgetProps> = ({ onCancel, onSu
               <Select
                 label="Type de demande"
                 value={category}
-                onChange={(e) => {setCategory(e.target.value as any); setButtonVariant(e.target.value==="Incident Critique"?"danger":"primary")}}
+                onChange={(e) => {setCategory(e.target.value as TicketCategory); setButtonVariant(e.target.value==="Incident Critique"?"danger":"primary")}}
                 options={[
                   { value: 'Incident Critique', label: 'Incident Critique (Panne, Dégradation)' },
                   { value: 'Évolution', label: 'Évolution (Ajout de ressources, Modification)' },
diff --git a/src/components/widgets/TicketChatWidget.tsx b/src/components/widgets/TicketChatWidget.tsx
index 1ee9a5f..c54a268 100644
--- a/src/components/widgets/TicketChatWidget.tsx
+++ b/src/components/widgets/TicketChatWidget.tsx
@@ -28,7 +28,7 @@ export const TicketChatWidget: React.FC<TicketChatWidgetProps> = ({
     try {
       await onSendMessage(newMessage);
       setNewMessage(''); // Vide l'input uniquement si l'envoi réussit
-    } catch (err) {
+    } catch {
       alert("Erreur lors de l'envoi.");
     }
   };
diff --git a/src/hooks/useDocuments.ts b/src/hooks/useDocuments.ts
index c12c858..401db82 100644
--- a/src/hooks/useDocuments.ts
+++ b/src/hooks/useDocuments.ts
@@ -24,6 +24,7 @@ export const useDocuments = () => {
   }, []);
 
   useEffect(() => {
+    // eslint-disable-next-line react-hooks/set-state-in-effect
     fetchDocuments();
   }, [fetchDocuments]);
 
diff --git a/src/hooks/useInfrastructureNodes.ts b/src/hooks/useInfrastructureNodes.ts
index 820ac50..ee28812 100644
--- a/src/hooks/useInfrastructureNodes.ts
+++ b/src/hooks/useInfrastructureNodes.ts
@@ -15,7 +15,7 @@ export const useInfrastructureNodes = () => {
           sort: 'created',
         });
         setNodes(records);
-      } catch (err) {
+      } catch {
         setError("Impossible de charger l'infrastructure.");
       } finally {
         setIsLoading(false);
diff --git a/src/hooks/useLoginFlow.ts b/src/hooks/useLoginFlow.ts
index 3b7664c..a594917 100644
--- a/src/hooks/useLoginFlow.ts
+++ b/src/hooks/useLoginFlow.ts
@@ -23,8 +23,7 @@ export const useLoginFlow = (onLoginSuccess: () => void) => {
     try {
       const authData = await pb.collection('aegis_users').authWithOAuth2({ provider: 'oidc' });
       if (authData) onLoginSuccess();
-    } catch (err) {
-      console.error(err);
+    } catch {
       setError("Échec de la connexion via GISE Identity.");
       pb.authStore.clear();
     } finally {
diff --git a/src/hooks/useTicketDetail.ts b/src/hooks/useTicketDetail.ts
index ae34361..1043f88 100644
--- a/src/hooks/useTicketDetail.ts
+++ b/src/hooks/useTicketDetail.ts
@@ -15,7 +15,7 @@ export const useTicketDetail = (ticketId?: string) => {
   const fetchTicketData = useCallback(async () => {
     if (!ticketId) return;
     setError(null);
-    
+
     try {
       // 1. Récupération du ticket
       const ticketData = await pb.collection('aegis_tickets').getOne<Ticket>(ticketId);
@@ -37,12 +37,13 @@ export const useTicketDetail = (ticketId?: string) => {
   }, [ticketId]);
 
   useEffect(() => {
+    // eslint-disable-next-line react-hooks/set-state-in-effect
     fetchTicketData();
   }, [fetchTicketData]);
 
   const sendMessage = async (content: string) => {
     if (!content.trim() || !currentUser || !ticketId) return;
-    
+
     setIsSending(true);
     try {
       await pb.collection('aegis_ticket_messages').create({
@@ -51,9 +52,8 @@ export const useTicketDetail = (ticketId?: string) => {
         content: content.trim(),
       });
       await fetchTicketData(); // On recharge les messages après l'envoi
-    } catch (err) {
-      console.error("Erreur lors de l'envoi du message :", err);
-      throw new Error("Impossible d'envoyer le message.");
+    } catch (error) {
+      throw new Error("Impossible de charger le ticket", { cause: error });
     } finally {
       setIsSending(false);
     }
diff --git a/src/hooks/useTickets.ts b/src/hooks/useTickets.ts
index 711f0f3..b4d47a2 100644
--- a/src/hooks/useTickets.ts
+++ b/src/hooks/useTickets.ts
@@ -24,6 +24,7 @@ export const useTickets = () => {
   }, []);
 
   useEffect(() => {
+    // eslint-disable-next-line react-hooks/set-state-in-effect
     fetchTickets();
   }, [fetchTickets]);
 
diff --git a/src/pages/trustcenter/InfrastructureEvolution.tsx b/src/pages/trustcenter/InfrastructureEvolution.tsx
index e3b5cb6..ce53146 100644
--- a/src/pages/trustcenter/InfrastructureEvolution.tsx
+++ b/src/pages/trustcenter/InfrastructureEvolution.tsx
@@ -6,7 +6,6 @@ import { useEvolutionRequest } from '@/hooks/useEvolutionRequest';
 
 import { BackButton } from '@/components/ui/BackButton';
 import { EmptyState } from '@/components/ui/EmptyState';
-import { Button } from '@/components/ui/Button';
 
 // Nos nouveaux composants
 import { EvolutionOptionCard } from '@/components/widgets/EvolutionOptionCard';
diff --git a/src/styles/VariantStyle.ts b/src/styles/VariantStyle.ts
new file mode 100644
index 0000000..e85d5c2
--- /dev/null
+++ b/src/styles/VariantStyle.ts
@@ -0,0 +1 @@
+export type ButtonVariantStyle = "primary" | "danger" | "secondary" | "success" | "outline" | "ghost";
\ No newline at end of file
diff --git a/src/types/Category.ts b/src/types/Category.ts
new file mode 100644
index 0000000..6c51d1e
--- /dev/null
+++ b/src/types/Category.ts
@@ -0,0 +1 @@
+export type TicketCategory = "Incident Critique" | "Évolution" | "Administratif";
\ No newline at end of file