Update WinnerBadge to display displayName instead of email

Replaced `winner.email` with `winner.displayName` in the WinnerBadge component. This ensures a more user-friendly representation by showing the display name instead of the email.

frontend/src/components/AdminPanel.jsx

@@ -124,7 +124,7 @@ export default function AdminPanel() {
               </button>
             </div>
 
-            <div style={{ marginTop: 12, display: "grid", gap: 10 }}>
+            <div style={{ marginTop: 12, display: "grid", gap: 8 }}>
               <input
                 value={displayName}
                 onChange={(e) => setDisplayName(e.target.value)}

frontend/src/components/WinnerBadge.jsx

@@ -49,7 +49,7 @@ export default function WinnerBadge({ winner, winnerEmail }) {
 
           {showEmail && (
             <div style={{ fontSize: 12, opacity: 0.8, color: stylesTokens.textDim }}>
-              {winner.email}
+              {winner.displayName}
             </div>
           )}
         </div>

frontend/src/styles/styles.js

@@ -189,25 +189,32 @@ export const styles = {
   modalOverlay: {
     position: "fixed",
     inset: 0,
-    background: "rgba(0,0,0,0.65)",
+    background: "rgba(0,0,0,0.78)",      // stärker abdunkeln
+    backdropFilter: "blur(6px)",         // Hintergrund weich (macht viel aus)
     display: "flex",
     alignItems: "center",
     justifyContent: "center",
     padding: 16,
     zIndex: 9999,
     animation: "fadeIn 160ms ease-out",
+    overflowY: "auto",                   // falls Viewport zu klein
   },
+
   modalCard: {
     width: "100%",
     maxWidth: 560,
     borderRadius: 18,
     border: `1px solid rgba(233,216,166,0.18)`,
-    background: "linear-gradient(180deg, rgba(20,20,24,0.92), rgba(12,12,14,0.86))",
+    background: "linear-gradient(180deg, rgba(20,20,24,0.95), rgba(12,12,14,0.92))",
     boxShadow: "0 18px 55px rgba(0,0,0,0.70)",
     padding: 14,
-    backdropFilter: "blur(6px)",
+    backdropFilter: "blur(8px)",
     animation: "popIn 160ms ease-out",
     color: stylesTokens.textMain,
+
+    // neu: damit es nie “kaputt” aussieht
+    maxHeight: "calc(100dvh - 32px)",
+    overflow: "auto",
   },
   modalHeader: {
     display: "flex",