diff --git a/App/php/api/live.php b/App/php/api/live.php
index 9e262d6..eb9685e 100644
--- a/App/php/api/live.php
+++ b/App/php/api/live.php
@@ -347,21 +347,32 @@ if ($method === 'GET') {
                 } elseif (isset($state['score']) && is_numeric($state['score'])) {
                     $liveScore = max(0, min(100, (int)round($state['score'])));
                 }
+                // Pausiert? (Idle-Pause-Overlay oder Sim-Pause). activeUntilMs = letzter
+                // Interaktionszeitpunkt → der Balken kann ab da halbhoch weitergezeichnet
+                // werden, solange die Pause läuft.
+                // Pausiert: Plattform-Idle-Pause, Sim-Pause ODER die Sim meldet phase=paused
+                // (z. B. Klima bei Geschwindigkeit 0). activeUntilMs = letzter Interaktions-
+                // zeitpunkt → ab da wird der Balken halbhoch weitergezeichnet.
+                $isPaused    = !empty($state['__idlePaused']) || !empty($state['__paused'])
+                               || (isset($state['phase']) && $state['phase'] === 'paused');
+                $activeUntil = isset($state['__lastInteractionAt']) ? (int)$state['__lastInteractionAt'] : 0;
                 $byStudent[$sid]['sessions'][] = [
-                    'simId'       => $simId,
-                    'simTitle'    => $mi['title'] ?? $simId,
-                    'simIcon'     => $mi['icon']  ?? '📚',
-                    'lessonKind'  => $lessonKind,
-                    'lessonLabel' => $lessonLabel,
-                    'startMs'     => $startMs,
-                    'endMs'       => $endMs,
-                    'durationSec' => $durSec,
-                    'stars'       => null,
-                    'score'       => $liveScore,
-                    'completed'   => null,
-                    'success'     => 'running',
-                    'rowCount'    => 1,
-                    'isLive'      => true,
+                    'simId'        => $simId,
+                    'simTitle'     => $mi['title'] ?? $simId,
+                    'simIcon'      => $mi['icon']  ?? '📚',
+                    'lessonKind'   => $lessonKind,
+                    'lessonLabel'  => $lessonLabel,
+                    'startMs'      => $startMs,
+                    'endMs'        => $endMs,
+                    'durationSec'  => $durSec,
+                    'stars'        => null,
+                    'score'        => $liveScore,
+                    'completed'    => null,
+                    'success'      => 'running',
+                    'rowCount'     => 1,
+                    'isLive'       => true,
+                    'paused'       => $isPaused,
+                    'activeUntilMs'=> ($activeUntil > $startMs && $activeUntil < $endMs) ? $activeUntil : 0,
                 ];
                 $byStudent[$sid]['totalSec'] += $durSec;
             }
diff --git a/App/teacher.html b/App/teacher.html
index ddff25e..965d9d8 100644
--- a/App/teacher.html
+++ b/App/teacher.html
@@ -2230,7 +2230,12 @@ async function renderLiveSummary() {
       var realDurSec = _liveRealDurSec(sess);
       var endMs = sess.startMs + realDurSec * 1000;
       var pctL = _msToPct(sess.startMs);
-      var pctR = _msToPct(endMs);
+      // Pausierter Lauf: der Hauptbalken (volle Höhe) reicht nur bis zum Pausenbeginn,
+      // danach zeichnen wir einen halbhohen „Pausen-Schwanz" bis jetzt weiter.
+      var isPausedRun = (sess.isLive || sess.success === 'running') && sess.paused
+                        && sess.activeUntilMs && sess.activeUntilMs > sess.startMs && sess.activeUntilMs < endMs;
+      var mainEndMs = isPausedRun ? sess.activeUntilMs : endMs;
+      var pctR = _msToPct(mainEndMs);
       var pctW = Math.max(0.8, pctR - pctL); // mindestens 0.8 % sichtbar
       var icon = sess.simIcon || '📚';
       var simName = sess.simTitle || simWord(sess.simId);
@@ -2246,9 +2251,10 @@ async function renderLiveSummary() {
       var border = aborted    ? 'border:1.5px dashed rgba(255,255,255,.7);'
                  : inProgress ? 'border:1.5px solid rgba(255,255,255,.7);border-right:2px dotted #fff;'
                  :              'border:1.5px solid rgba(20,20,20,.25);';
-      // Laufende Spiele: langsam blinkender Block (Balken wächst ohnehin mit der Zeit).
-      var anim = inProgress ? 'animation:_tagblink 1.8s ease-in-out infinite;' : '';
-      var stateWord = inProgress ? 'läuft noch' : aborted ? 'abgebrochen' : 'fertig';
+      // Laufende Spiele: langsam blinkender Block. Pausiert → Hauptbalken ruhig
+      // (der halbhohe Schwanz blinkt stattdessen).
+      var anim = (inProgress && !sess.paused) ? 'animation:_tagblink 1.8s ease-in-out infinite;' : '';
+      var stateWord = !inProgress ? (aborted ? 'abgebrochen' : 'fertig') : (sess.paused ? 'pausiert ⏸' : 'läuft noch');
       var tip = (sess.simTitle||sess.simId) + (sess.lessonLabel?' · '+sess.lessonLabel:'')
               + ' · ' + _fmtHM(sess.startMs) + '–' + _fmtHM(endMs)
               + ' · ' + _liveFmtMin(realDurSec) + ' · ' + stateWord
@@ -2265,6 +2271,15 @@ async function renderLiveSummary() {
            +  'white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer;'
            +  'text-shadow:0 1px 1px rgba(0,0,0,.3);box-shadow:0 1px 2px rgba(0,0,0,.12)">'
            +  inner + '</div>';
+      // Pausen-Schwanz: halbhoch, gedämpft, blinkt langsam — „läuft noch, aber gerade ruhig".
+      if (isPausedRun) {
+        var halfH = 9;
+        var tailW = Math.max(0.6, _msToPct(endMs) - pctR);
+        html += '<div title="pausiert seit '+_fmtHM(mainEndMs)+'" '
+             +  'style="position:absolute;left:'+pctR+'%;width:'+tailW+'%;top:'+(5+barH-halfH)+'px;height:'+halfH+'px;'
+             +  'background:'+col+';opacity:.42;border-radius:0 3px 3px 0;'
+             +  'border:1px dashed rgba(255,255,255,.6);animation:_tagblink 2.4s ease-in-out infinite"></div>';
+      }
       if (aborted) {
         html += '<span style="position:absolute;left:'+pctR+'%;top:0;height:28px;line-height:28px;'
              +  'font-size:.74rem;color:#b03a2a;font-weight:800;padding-left:2px;pointer-events:none">✖</span>';
@@ -2285,6 +2300,7 @@ async function renderLiveSummary() {
         + ' stark → schwach</span>';
   html += '<span><b>Symbol</b> = Simulation · <b>Klick</b> = Details</span>';
   html += '<span><span style="display:inline-block;width:16px;height:11px;background:#aab2b8;border:1.5px solid rgba(255,255,255,.55);border-right:2px dotted #fff;vertical-align:middle;margin-right:.25rem"></span>läuft noch</span>';
+  html += '<span><span style="display:inline-flex;align-items:flex-end;width:16px;height:11px;vertical-align:middle;margin-right:.25rem"><span style="width:8px;height:11px;background:#aab2b8"></span><span style="width:8px;height:6px;background:#aab2b8;opacity:.42"></span></span>pausiert</span>';
   html += '<span><span style="color:#b03a2a;font-weight:800">✖</span> Abbruch</span>';
   html += '</div>';