diff --git a/01_3D-Druck/blender/__pycache__/raci-board.cpython-312.pyc b/01_3D-Druck/blender/__pycache__/raci-board.cpython-312.pyc
index e774245..2a722f7 100644
Binary files a/01_3D-Druck/blender/__pycache__/raci-board.cpython-312.pyc and b/01_3D-Druck/blender/__pycache__/raci-board.cpython-312.pyc differ
diff --git a/01_3D-Druck/blender/raci-board.py b/01_3D-Druck/blender/raci-board.py
index 27811be..140da0b 100644
--- a/01_3D-Druck/blender/raci-board.py
+++ b/01_3D-Druck/blender/raci-board.py
@@ -138,13 +138,16 @@ base.data.materials.clear(); base.data.materials.append(mat)
 # ----------------------------- Vorschau-Render -----------------------------
 try:
     sc = bpy.context.scene
+    # Meshy-tauglich: heller, neutraler Hintergrund + gleichmaessiges Licht
     try:
         bg = next((n for n in sc.world.node_tree.nodes if n.type == 'BACKGROUND'), None)
-        if bg: bg.inputs[1].default_value = 1.2
+        if bg:
+            bg.inputs[0].default_value = (0.92, 0.92, 0.92, 1)
+            bg.inputs[1].default_value = 1.6
     except Exception: pass
-    bpy.ops.object.light_add(type='SUN', location=(140, -180, 260)); bpy.context.object.data.energy = 3.5
+    bpy.ops.object.light_add(type='SUN', location=(140, -180, 260)); bpy.context.object.data.energy = 2.2
     bpy.ops.object.light_add(type='AREA', location=(-140, -60, 180))
-    bpy.context.object.data.energy = 6000; bpy.context.object.data.size = 280
+    bpy.context.object.data.energy = 9000; bpy.context.object.data.size = 320
     bpy.ops.object.empty_add(location=(0, 0, 5)); tgt = bpy.context.object
     bpy.ops.object.camera_add(location=(235, -295, 270)); cam = bpy.context.object
     cam.data.lens = 50
diff --git a/04_Tablet-Quiz/app/index.html b/04_Tablet-Quiz/app/index.html
index 961e874..86b9edd 100644
--- a/04_Tablet-Quiz/app/index.html
+++ b/04_Tablet-Quiz/app/index.html
@@ -275,6 +275,8 @@
   .slcDonut.clickable .donutSeg{cursor:pointer;transition:opacity .12s}
   .slcDonut.clickable .donutSeg:hover{opacity:.82}
   .slcDonut .donutSeg.bad{stroke:var(--bad);stroke-width:4}
+  .akteItem.flash{animation:akteFlash 1.6s ease-out}
+  @keyframes akteFlash{0%,55%{background:#fff3bf}100%{background:transparent}}
   .slcCap{font-size:11px;color:var(--muted);margin-top:4px;text-align:center}
   @media(max-width:680px){.classifyTop{grid-template-columns:1fr}.classifyCard{max-width:300px;margin:0 auto}.classifyMain{margin-top:6px}}
   .choice{text-align:left;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:15px;font-weight:600}
@@ -1106,7 +1108,7 @@ function defaultState(){
            classifyDone:false, classifyWrong:null,
            freigabeDone:false, freigabeWrong:null,
            entryDone:false, entryWrong:null,
-           bonusReveal:false, bonusDone:{}, servicesDone:{},
+           bonusReveal:false, bonusDone:{}, servicesDone:{}, akteFlash:null,
            index:0, stage:"discuss", quizIndex:0,
            actStep:0, actReveal:false, actDone:false, arteWrong:null,
            picks:{}, done:{}, akte:{},
@@ -1173,7 +1175,7 @@ function renderAkte(){
     html += `<h3>${PHASEN[ph].label}</h3>`;
     group.forEach(a=>{
       const ok = !!have[a];
-      html += `<div class="akteItem ${ok?'have':''}">
+      html += `<div class="akteItem ${ok?'have':''} ${a===S.akteFlash?'flash':''}">
         <span class="aId" style="background:${PHASEN[ph].color}">${a}</span>
         <span class="aNm">${ARTEFAKTE[a].name}${ARTEFAKTE[a].live?' · <i>lebend</i>':''}</span>
         <span class="aChk">${ok?'✓':'○'}</span>
@@ -1558,6 +1560,7 @@ function enterStation(idx){
   S.stage = STATIONEN[idx].typ==="gate" ? "gate" : "act";
   S.gatePick = null; S.quizIndex = 0;
   S.actStep = 0; S.actReveal = false; S.actDone = false; S.arteWrong = null;
+  S.akteFlash = null; document.body.classList.remove("akteOpen");
 }
 function gateGoto(st, i){
   S.done[st.id] = true;
@@ -1811,13 +1814,16 @@ function wire(st){
   const b = id => $("#"+id);
   if(b("actReveal")) b("actReveal").onclick = ()=>{ S.actReveal=true; save(); draw(); };
   if(b("actNext"))   b("actNext").onclick   = ()=>{ S.actStep=(S.actStep||0)+1; S.actReveal=false; save(); draw(); };
-  if(b("actToDone")) b("actToDone").onclick = ()=>{ S.actDone=true; save(); draw(); };
+  if(b("actToDone")) b("actToDone").onclick = ()=>{ S.actDone=true; S.akteFlash=null; document.body.classList.remove("akteOpen"); save(); draw(); };
   // Artefakt-Choice
   $("#panel").querySelectorAll(".arteChoice[data-a]").forEach(el=>{
-    el.onclick = ()=>{ const a = el.dataset.a;
-      if(a === STATION_ARTEFAKT[st.id]){ S.arteWrong=null; addArtefakt(a); S.actReveal=true; }
+    el.onclick = ()=>{ const a = el.dataset.a; let correct=false;
+      if(a === STATION_ARTEFAKT[st.id]){ S.arteWrong=null; addArtefakt(a); S.akteFlash=a; S.actReveal=true; correct=true; }
       else { S.arteWrong = a; }
-      save(); draw(); };
+      save(); draw();
+      // Akte-Seitenleiste oeffnen, damit man sieht, dass das Artefakt nun drin ist
+      if(correct){ document.body.classList.remove("navOpen","rollenOpen"); document.body.classList.add("akteOpen"); }
+    };
   });
   if(b("actBack"))   b("actBack").onclick   = ()=>{
       if(S.actDone){ S.actDone=false; }
diff --git a/04_Tablet-Quiz/app/sw.js b/04_Tablet-Quiz/app/sw.js
index 5dfcc9d..98a0e1c 100644
--- a/04_Tablet-Quiz/app/sw.js
+++ b/04_Tablet-Quiz/app/sw.js
@@ -1,5 +1,5 @@
 /* Service Worker — SLC-Workshop Companion (App-Shell, offline-first) */
-const CACHE = "slc-companion-v25";
+const CACHE = "slc-companion-v26";
 const SHELL = ["./", "index.html", "manifest.webmanifest", "icon.svg"];
 // Action-Card-Grafiken (cards/s<service>-c<change>.png) fuer Offline vorab cachen (alle 24).
 const CARDS = [];