some more info and some difficulty added!

static/index.css

@@ -73,6 +73,9 @@ header p {
 .problems-list .problem-item {
     padding: 8px;
     border-bottom: 1px solid #e5e7eb;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
 }
 .problem-item:last-child {
     border-bottom: none;
@@ -82,6 +85,28 @@ header p {
     color: #0077ff;
     font-weight: 600;
 }
+/* Difficulty badge */
+.difficulty {
+    display: inline-flex;
+    align-items: center;
+    padding: 0.25em 0.6em;
+    border-radius: 10px;
+    font-size: 0.85em;
+    font-weight: bold;
+    text-transform: uppercase;
+    color: white;
+    white-space: nowrap;
+}
+.difficulty[data-difficulty="easy"] {
+    background-color: #4CAF50; /* Green */
+}
+.difficulty[data-difficulty="medium"] {
+    background-color: #FFC107; /* Amber */
+    color: #333;
+}
+.difficulty[data-difficulty="hard"] {
+    background-color: #F44336; /* Red */
+}
 /* Leaderboard */
 .leaderboard-head {
     display: flex;
@@ -155,6 +180,6 @@ header p {
 @media (max-width: 800px) {
     .content { grid-template-columns: 1fr; }
     .leaderboard-controls {
-    flex-direction: column;
+        flex-direction: column;
     }
-}
+}