Feature: Restore closed antique envelope state with 3D flap opening and sliding letter reveal on seal break

app/static/js/quiz.js

@@ -15,6 +15,8 @@ const UI_TEXT = {
         pageTitle: "✨ Magisches Hogwarts-Escape-Quiz ✨",
         pageSubtitle: "10 knifflige Rätsel aus der Zauberwelt warten auf dich",
         envelopeLetter: "Hogwarts-Schule für Hexerei und Zauberei",
+        envelopeRecipient: "An den ehrenwerten Zauberschüler",
+        envelopeLocation: "Auf dem Prüfungspfad • Schloss Hogwarts",
         letterSchoolTitle: "Hogwarts-Schule für Hexerei und Zauberei",
         letterHeadmaster: "Schulleiter: Albus Dumbledore<br><span>(Großhexenmeister, Träger des Merlin-Ordens Erster Klasse)</span>",
         letterSalutation: "Liebe Hexe, lieber Zauberer,",
@@ -52,6 +54,8 @@ const UI_TEXT = {
         pageTitle: "✨ Magical Hogwarts Escape Quiz ✨",
         pageSubtitle: "10 tricky wizarding world puzzles await you",
         envelopeLetter: "Hogwarts School of Witchcraft and Wizardry",
+        envelopeRecipient: "To the Esteemed Wizarding Student",
+        envelopeLocation: "On the Path of Trials • Hogwarts Castle",
         letterSchoolTitle: "Hogwarts School of Witchcraft and Wizardry",
         letterHeadmaster: "Headmaster: Albus Dumbledore<br><span>(Order of Merlin, First Class, Grand Sorc.)</span>",
         letterSalutation: "Dear Witch or Wizard,",
@@ -163,9 +167,14 @@ function applyQuizTranslations(lang) {
     const letterSignature = document.getElementById("letterSignature");
     const letterSignTitle = document.getElementById("letterSignTitle");
 
+    const envelopeRecipient = document.getElementById("envelopeRecipient");
+    const envelopeLocation = document.getElementById("envelopeLocation");
+
     if (pageTitle) pageTitle.innerText = t.pageTitle;
     if (pageSubtitle) pageSubtitle.innerText = t.pageSubtitle;
     if (envelopeLetter) envelopeLetter.innerText = t.envelopeLetter;
+    if (envelopeRecipient && t.envelopeRecipient) envelopeRecipient.innerText = t.envelopeRecipient;
+    if (envelopeLocation && t.envelopeLocation) envelopeLocation.innerText = t.envelopeLocation;
     if (letterSchoolTitle && t.letterSchoolTitle) letterSchoolTitle.innerText = t.letterSchoolTitle;
     if (letterHeadmaster && t.letterHeadmaster) letterHeadmaster.innerHTML = t.letterHeadmaster;
     if (letterSalutation && t.letterSalutation) letterSalutation.innerText = t.letterSalutation;
@@ -252,6 +261,7 @@ async function startGame() {
     startBtn.disabled = true;
     startBtn.innerText = t.startBtnCasting;
     envelope.classList.add("envelope-opened");
+    playSound('magic');
     sessionQuestionIds = [];
 
     // Start background music if enabled or first click
@@ -299,7 +309,7 @@ async function startGame() {
             document.getElementById("gameCard").classList.remove("hidden");
             startTimer();
             renderQuestion(data);
-        }, 1100);
+        }, 1800);
 
     } catch (err) {
         alert(t.startError + err.message);