fix: Resolve redundant quiz titles by merging them into the page header

src/app/(protected)/[classSlug]/quizzes/[quizId]/page.tsx

@@ -107,6 +107,11 @@ export default function QuizStudyPage() {
     fetchQuizAndAttempts();
   }, [fetchQuizAndAttempts]);
 
+  const [showTopics, setShowTopics] = useState(false);
+  const categories = quiz 
+    ? Array.from(new Set(quiz.questions.map(q => q.category.toUpperCase()))).join(" · ")
+    : "";
+
   if (loading || !quiz) {
     return (
       <div className="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
@@ -121,25 +126,46 @@ export default function QuizStudyPage() {
   return (
     <div className="max-w-4xl mx-auto w-full py-2 md:py-4">
       {/* Header */}
-      <div className="flex items-center justify-between mb-6">
+      <div className="flex flex-col md:flex-row items-start justify-between gap-4 mb-6">
         <div>
           <button
             onClick={() => router.push(`/${classSlug}/quizzes`)}
-            className="inline-flex items-center gap-1 text-sm text-text-muted hover:text-text-heading mb-2 transition-colors cursor-pointer"
+            className="inline-flex items-center gap-1 text-sm text-text-muted hover:text-text-heading mb-4 transition-colors cursor-pointer"
           >
             <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
               <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
             </svg>
             Back to quizzes
           </button>
-          <h1 className="text-xl font-bold text-text-heading">{quiz.name}</h1>
+          
+          <button 
+            onClick={() => setShowTopics(!showTopics)}
+            className="flex items-center gap-2 group cursor-pointer text-left focus:outline-none mb-2"
+          >
+            <h1 className="text-3xl font-bold font-serif text-text-heading group-hover:text-primary transition-colors">
+              {quiz.name}
+            </h1>
+            <svg 
+              className={`w-6 h-6 text-text-muted transition-transform duration-200 ${showTopics ? "rotate-180" : ""}`} 
+              fill="none" viewBox="0 0 24 24" stroke="currentColor"
+            >
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
+            </svg>
+          </button>
+
+          {showTopics && (
+            <div className="text-sm tracking-widest text-text-muted font-medium mb-3 animate-in fade-in slide-in-from-top-2 duration-200 leading-relaxed">
+              {categories}
+            </div>
+          )}
+
           {quiz.description && (
             <p className="text-sm text-text-secondary mt-1">{quiz.description}</p>
           )}
         </div>
 
         {/* View toggle & Share */}
-        <div className="flex items-center gap-2 md:gap-4">
+        <div className="flex items-center gap-2 md:gap-4 self-end md:self-auto md:mt-10">
           {view === "take" && (
             <button
               onClick={handleRestart}

src/app/shared/[classSlug]/[type]/[token]/SharedViewer.tsx

@@ -14,13 +14,44 @@ export function SharedViewer({ type, data }: SharedViewerProps) {
   const [restartKey, setRestartKey] = useState(0);
   const [view, setView] = useState<"study" | "list">("study");
 
+  const [showTopics, setShowTopics] = useState(false);
+  const categories = type === "quizzes" && data.questions
+    ? Array.from(new Set(data.questions.map((q: any) => q.category.toUpperCase()))).join(" · ")
+    : "";
+
   return (
     <div>
       <div className="flex flex-col md:flex-row items-start md:items-center justify-between gap-4 mb-8">
         <div className="text-left">
-          <h1 className="text-2xl font-bold text-text-heading mb-2">
+          {type === "quizzes" ? (
-            {data.name}
+            <>
-          </h1>
+              <button 
+                onClick={() => setShowTopics(!showTopics)}
+                className="flex items-center gap-2 group cursor-pointer text-left focus:outline-none mb-2"
+              >
+                <h1 className="text-3xl font-bold font-serif text-text-heading group-hover:text-primary transition-colors">
+                  {data.name}
+                </h1>
+                <svg 
+                  className={`w-6 h-6 text-text-muted transition-transform duration-200 ${showTopics ? "rotate-180" : ""}`} 
+                  fill="none" viewBox="0 0 24 24" stroke="currentColor"
+                >
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
+                </svg>
+              </button>
+
+              {showTopics && (
+                <div className="text-sm tracking-widest text-text-muted font-medium mb-3 animate-in fade-in slide-in-from-top-2 duration-200 leading-relaxed">
+                  {categories}
+                </div>
+              )}
+            </>
+          ) : (
+            <h1 className="text-2xl font-bold text-text-heading mb-2">
+              {data.name}
+            </h1>
+          )}
+
           <p className="text-text-secondary">
             From class: <span className="font-medium text-text-heading">{data.class.name}</span>
           </p>

src/components/quizzes/QuizViewer.tsx

@@ -47,7 +47,6 @@ export function QuizViewer({ quiz, retakeIds, isShared = false, onFinished }: Qu
   
   const [loading, setLoading] = useState(true);
   const [resultsData, setResultsData] = useState<any | null>(null);
-  const [showTopics, setShowTopics] = useState(false);
 
   // Initialize session
   useEffect(() => {
@@ -268,35 +267,9 @@ export function QuizViewer({ quiz, retakeIds, isShared = false, onFinished }: Qu
     return <div>Question not found.</div>;
   }
 
-  const categories = Array.from(new Set(quiz.questions.map(q => q.category.toUpperCase()))).join(" · ");
-
   return (
     <div className="flex flex-col items-center">
       
-      {/* Title & Meta */}
-      <div className="w-full max-w-3xl mb-6 text-left">
-        <button 
-          onClick={() => setShowTopics(!showTopics)}
-          className="flex items-center gap-2 group cursor-pointer text-left focus:outline-none"
-        >
-          <h1 className="text-3xl font-bold font-serif text-text-heading group-hover:text-primary transition-colors">
-            {quiz.name}
-          </h1>
-          <svg 
-            className={`w-6 h-6 text-text-muted transition-transform duration-200 ${showTopics ? "rotate-180" : ""}`} 
-            fill="none" viewBox="0 0 24 24" stroke="currentColor"
-          >
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
-          </svg>
-        </button>
-        
-        {showTopics && (
-          <div className="text-sm tracking-widest text-text-muted font-medium mt-3 animate-in fade-in slide-in-from-top-2 duration-200 leading-relaxed">
-            {categories}
-          </div>
-        )}
-      </div>
-
       {/* Main Unified Card */}
       <div className="w-full max-w-3xl bg-bg-surface-alt rounded-2xl border border-border-light shadow-[var(--shadow-card)] overflow-hidden mb-8">