diff --git a/client/src/components/CalendarGrid.tsx b/client/src/components/CalendarGrid.tsx
index 9e6e98e..9333973 100644
--- a/client/src/components/CalendarGrid.tsx
+++ b/client/src/components/CalendarGrid.tsx
@@ -389,7 +389,7 @@ export default function CalendarGrid({
       </div>
 
       {/* Calendar Days - Grid moderne sans arrondi */}
-      <div className="grid grid-cols-7 gap-0.5 bg-gray-500 p-0.5">
+      <div className="grid grid-cols-7 gap-px bg-gray-300 p-px">
         {paddedDays.map((date, index) => {
           const isCurrentMonth = isSameMonth(date, currentDate);
           const isTodayDate = isToday(date);