Remove the colored background from the footer for a cleaner look

Updates the footer style in index.html by removing the gradient background and adjusting text colors.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 6b209f67-5e7e-4b5b-8985-eab5f71d9da8
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0f6e1b31-1242-4cac-b2eb-0f281fc5a0c6/6b209f67-5e7e-4b5b-8985-eab5f71d9da8/evcvSQy

Author: wuweiclothing

attached_assets/Captura de Pantalla 2025-07-22 a la(s) 9.55.22_1753199734886.png

@@ -665,32 +665,32 @@ <h4>Alertas</h4>
                 </div>
             </div>
 
-            <div style="text-align: center; margin-top: 30px; padding: 30px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); border-radius: 12px; color: white;">
-                <h3 style="color: white; margin-bottom: 20px; font-size: 1.3rem;">Built with React and modern web technologies</h3>
+            <div style="text-align: center; margin-top: 30px; padding: 30px; background: #f8f9fa; border-radius: 12px; color: #333;">
+                <h3 style="color: #333; margin-bottom: 20px; font-size: 1.3rem;">Built with React and modern web technologies</h3>
                 <div style="display: flex; justify-content: center; gap: 30px; margin: 25px 0; flex-wrap: wrap;">
                     <div style="display: flex; flex-direction: column; align-items: center; gap: 8px;">
-                        <div style="background: rgba(255,255,255,0.1); border-radius: 12px; padding: 15px; backdrop-filter: blur(10px);">
+                        <div style="background: rgba(0,0,0,0.05); border-radius: 12px; padding: 15px;">
                             <div style="font-size: 48px;">⚛️</div>
                         </div>
-                        <span style="color: white; font-weight: 600; font-size: 0.9rem;">React</span>
+                        <span style="color: #333; font-weight: 600; font-size: 0.9rem;">React</span>
                     </div>
                     <div style="display: flex; flex-direction: column; align-items: center; gap: 8px;">
-                        <div style="background: rgba(255,255,255,0.1); border-radius: 12px; padding: 15px; backdrop-filter: blur(10px);">
+                        <div style="background: rgba(0,0,0,0.05); border-radius: 12px; padding: 15px;">
                             <div style="font-size: 48px;">🟨</div>
                         </div>
-                        <span style="color: white; font-weight: 600; font-size: 0.9rem;">JavaScript</span>
+                        <span style="color: #333; font-weight: 600; font-size: 0.9rem;">JavaScript</span>
                     </div>
                     <div style="display: flex; flex-direction: column; align-items: center; gap: 8px;">
-                        <div style="background: rgba(255,255,255,0.1); border-radius: 12px; padding: 15px; backdrop-filter: blur(10px);">
+                        <div style="background: rgba(0,0,0,0.05); border-radius: 12px; padding: 15px;">
                             <div style="font-size: 48px;">🔷</div>
                         </div>
-                        <span style="color: white; font-weight: 600; font-size: 0.9rem;">CSS3</span>
+                        <span style="color: #333; font-weight: 600; font-size: 0.9rem;">CSS3</span>
                     </div>
                     <div style="display: flex; flex-direction: column; align-items: center; gap: 8px;">
-                        <div style="background: rgba(255,255,255,0.1); border-radius: 12px; padding: 15px; backdrop-filter: blur(10px);">
+                        <div style="background: rgba(0,0,0,0.05); border-radius: 12px; padding: 15px;">
                             <div style="font-size: 48px;">⚡</div>
                         </div>
-                        <span style="color: white; font-weight: 600; font-size: 0.9rem;">Vite</span>
+                        <span style="color: #333; font-weight: 600; font-size: 0.9rem;">Vite</span>
                     </div>
                 </div>
                 <div style="margin-top: 25px;">