Improve video card appearance with new fonts and refined overlays

Update video card styling to use Poppins and Inter fonts, remove black overlay bar, refine gradient overlay, and adjust loader text and font.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 890577b1-c154-40a4-a177-a0c6d55320c3
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/8cc42625-c1f5-4e43-99bd-77f2c4dedee2/890577b1-c154-40a4-a177-a0c6d55320c3/S0hX96S

client/index.html

@@ -67,7 +67,7 @@
         align-items: center;
         justify-content: center;
         z-index: 9999;
-        font-family: Arial, sans-serif;
+        font-family: 'Poppins', 'Inter', Arial, sans-serif;
       ">
         <div style="text-align: center; color: white;">
           <div style="
@@ -90,8 +90,8 @@
               margin-left: 4px;
             "></div>
           </div>
-          <h2 style="margin: 0; font-size: 24px; font-weight: bold;">go4.video</h2>
-          <p style="margin: 10px 0 0; opacity: 0.8;">Loading...</p>
+          <h2 style="margin: 0; font-size: 28px; font-weight: 800; letter-spacing: 1px; text-shadow: 2px 2px 8px rgba(0,0,0,0.5);">go4.video</h2>
+          <p style="margin: 10px 0 0; opacity: 0.9; font-size: 16px; font-weight: 500;">Loading amazing content...</p>
         </div>
       </div>
       <style>