diff --git a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py
index 0802302..4c59eff 100644
--- a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py
+++ b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py
@@ -1633,7 +1633,11 @@ def _render_html(phone_numbers: list, has_tomo_queue: bool = True, tomo_types: d
     body {{
       background: var(--bg); color: var(--text);
       font-family: var(--sans); font-weight: 300;
-      min-height: 100vh; padding: 1.5rem;
+      min-height: 100vh;        /* fallback for browsers without dvh */
+      min-height: 100dvh;       /* dynamic viewport: avoids extra scroll room
+                                   below content on mobile (iOS 100vh counts the
+                                   retracted-toolbar height and overshoots) */
+      padding: 1.5rem;
       transition: background 0.4s, color 0.4s;
     }}
     body::before {{
@@ -2157,7 +2161,7 @@ def _render_html(phone_numbers: list, has_tomo_queue: bool = True, tomo_types: d
       <h3>Audio warnings</h3>
       <ul>
         <li><strong>System LED</strong> &mdash; on when audio is enabled on this device.</li>
-        <li><strong>Watch LED</strong> &mdash; armed (green) while a scan is running; pulses orange if a scan stops unexpectedly, with a chime every 30s until confirmed.</li>
+        <li><strong>Watch LED</strong> &mdash; armed (green) while a scan is running; pulses orange when a scan stops, with a chime every 30s until confirmed. A normal finish (scan &rarr; idle) plays a rising success tone; a stop to any other state plays the falling warning tone, so you can tell them apart by ear.</li>
         <li><strong>Blocked LED</strong> &mdash; pulses orange while the queue is locked. A chime fires automatically after 60 continuous minutes blocked, then repeats hourly until cleared. No confirmation needed &mdash; it clears itself once the block resolves.</li>
         <li><strong>Live LED</strong> &mdash; green while this page's data feed is fresh; pulses orange if the feed goes stale or a fetch fails.</li>
       </ul>
@@ -2353,6 +2357,7 @@ initDrag();
 
 let audioCtx=null, audioEnabled=false;
 let audioArmed=false, warningActive=false, warningTimer=null, lastStatus=null;
+let warningWasSuccess=false;   // true when the active warning is a normal finish (scanning -> idle)
 let staleActive=false, staleTimer=null, staleConfirmed=false;
 let blockedSince=null, blockedWarningActive=false, blockedChimeTimer=null;
 const BLOCKED_WARNING_DELAY_MS=60*60*1000;   // first chime after 60 min continuously blocked
@@ -2387,6 +2392,13 @@ function beep(freq,dur,vol){{
 function warningChime(){{
   beep(660,0.3,0.4); setTimeout(()=>beep(440,0.5,0.4),350);
 }}
+function successChime(){{
+  // Reverse of warningChime: a rising major arpeggio (C5-E5-G5) so a normal
+  // finish (scanning -> idle) is audibly a happy "done" rather than an alert.
+  beep(523,0.22,0.4);
+  setTimeout(()=>beep(659,0.22,0.4),240);
+  setTimeout(()=>beep(784,0.45,0.4),480);
+}}
 function staleChime(){{
   beep(1200,0.12,0.35);
   setTimeout(()=>beep(1200,0.12,0.35),180);
@@ -2432,12 +2444,14 @@ function confirmWarning(){{
   updateAudioUI();
 }}
 
-function startWarning(){{
+function startWarning(finished){{
   // Not a gesture handler — context already unlocked by Enable button click.
   if(warningActive) return;
   warningActive=true;
-  if(audioEnabled) warningChime();
-  warningTimer=setInterval(()=>{{ if(audioEnabled) warningChime(); }},30000);
+  warningWasSuccess=!!finished;               // scanning -> idle == successful finish
+  const chime = warningWasSuccess ? successChime : warningChime;
+  if(audioEnabled) chime();
+  warningTimer=setInterval(()=>{{ if(audioEnabled) chime(); }},30000);
   document.getElementById('btn-confirm').style.display='inline-block';
   updateAudioUI();
 }}
@@ -2537,10 +2551,10 @@ function updateAudioUI(){{
     txt.textContent='Audio disabled \u2014 enable to receive warnings';
   }}else if(warningActive && staleActive){{
     ledWatch.className='led led-warning';
-    txt.textContent='Measurement stopped & live feed lost \u2014 confirm each';
+    txt.textContent=(warningWasSuccess?'Measurement finished':'Measurement stopped')+' & live feed lost \u2014 confirm each';
   }}else if(warningActive){{
     ledWatch.className='led led-warning';
-    txt.textContent='Measurement stopped \u2014 confirm to silence';
+    txt.textContent=(warningWasSuccess?'Measurement finished':'Measurement stopped')+' \u2014 confirm to silence';
   }}else if(staleActive){{
     ledWatch.className='led';
     txt.textContent='Live feed lost \u2014 confirm to silence';
@@ -2573,7 +2587,7 @@ function handleAudioForStatus(status, prevStatus){{
   }}
 
   if(audioArmed && wasScanning && !isScanning){{
-    startWarning();
+    startWarning(status==='idle');   // idle == finished successfully -> success chime
   }}
 
   if(isScanning && warningActive){{