Improve the appearance of input fields by using a white background

Set the background color of input fields to white in index.css.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: dec54137-d5a2-4406-8ad4-5f2f9fb110bf
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/3acac8f9-456b-4987-85c6-2b9490ec8c0b.jpg

client/src/index.css

@@ -126,7 +126,7 @@ body {
   padding: 12px 16px;
   border: 2px solid #4b5563 !important; /* Bordure grise foncée bien visible */
   border-radius: 4px;
-  background: hsl(var(--background));
+  background: white !important;
   color: hsl(var(--foreground));
   font-size: 14px;
   font-weight: 400;
@@ -242,7 +242,7 @@ body {
   padding: 12px 16px;
   border: 2px solid #4b5563 !important; /* Bordure bien visible */
   border-radius: 4px;
-  background: hsl(var(--background));
+  background: white !important;
   color: hsl(var(--foreground));
   font-size: 14px;
   transition: all 0.2s ease;

replit.md

@@ -246,6 +246,7 @@ Preferred communication style: Simple, everyday language.
 - ✅ Uniformized export buttons with consistent styling
 - ✅ Applied angular design with reduced border-radius throughout entire application
 - ✅ Modern, crisp appearance with 4px border-radius for cards, inputs, and buttons
+- ✅ White background for all input fields for better contrast and readability
 
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