diff --git a/conversations.php b/conversations.php
index 87bdc3c..5984e77 100644
--- a/conversations.php
+++ b/conversations.php
@@ -474,23 +474,29 @@
         .quick-replies-wrapper { position: relative; }
         .quick-replies-panel {
             display: none;
-            background: #fff;
-            border: 1px solid #e6eef5;
-            box-shadow: 0 8px 20px rgba(2,6,23,0.06);
-            padding: 8px;
-            border-radius: 8px;
-            max-height: 220px;
+            background: rgba(255,255,255,0.96);
+            border: none;
+            box-shadow: 0 6px 18px rgba(2,6,23,0.04);
+            padding: 6px;
+            border-radius: 6px;
+            max-height: 180px;
             overflow-y: auto;
             display: flex;
             gap: 6px;
             flex-wrap: wrap;
+            align-items: center;
         }
-        .quick-replies-panel .btn { min-width: 80px; max-width: 180px; font-size: 12px; }
+        .quick-replies-panel .btn { min-width: 72px; max-width: 200px; font-size: 13px; padding:6px 10px; }
         #quick-replies-toggle { background: transparent; border-radius: 20px; }
         @media (max-width: 768px) {
             .quick-replies-panel { left: 8px; right: 8px; bottom: 56px; min-width: auto; }
         }
 
+        /* Improve audio control visibility and color in supporting browsers */
+        .message-media audio { background: #fff; border-radius: 8px; padding: 4px; accent-color: var(--whatsapp-green); }
+        /* Ensure mic icon contrast */
+        #mic-btn i { color: white; font-size: 14px; }
+
         /* Make mic button more visible */
         #mic-btn {
             margin-left: 6px;
@@ -711,7 +717,7 @@
                         </select>
                     </div>
                     <div class="quick-replies-wrapper" style="position:relative;">
-                        <button id="quick-replies-toggle" class="btn btn-sm btn-outline-secondary" title="Respuestas rápidas" aria-expanded="false">💡 Respuestas</button>
+                        <button id="quick-replies-toggle" class="btn btn-sm btn-outline-secondary" title="Respuestas rápidas" aria-expanded="false">Respuestas</button>
                         <div id="quick-replies-panel" class="quick-replies-panel" style="display:none; position:absolute; bottom:48px; left:0; z-index:1200; min-width:220px; max-width:420px;">
                             <!-- Quick replies buttons inserted dynamically -->
                         </div>
@@ -880,12 +886,31 @@
 
                 // Determine an id to dedupe notifications (prefer server id)
                 const nid = notification && notification.id ? String(notification.id) : ('msg:' + String((notification && notification.message) || '').slice(0,200));
+                // If the user already dismissed/acked this notification earlier, skip it
+                if (this._dismissedNotifications.has(nid)) {
+                    console.debug('Notification previously dismissed, skipping', nid);
+                    return;
+                }
                 if (this._shownNotifications.has(nid)) {
-                    // already shown
+                    // already shown in this session
                     console.debug('Notification already shown, skipping', nid);
                     return;
                 }
+
+                // mark as shown immediately and try to ack on server so it doesn't reappear
                 this._shownNotifications.add(nid);
+                try {
+                    const ok = await this.ackNotification(notification);
+                    if (ok) {
+                        this._dismissedNotifications.add(nid);
+                        this._pendingAck.delete(nid);
+                    } else {
+                        // schedule for retry
+                        this._pendingAck.set(nid, notification);
+                    }
+                } catch (e) {
+                    this._pendingAck.set(nid, notification);
+                }
 
                 const toast = document.createElement('div');
                 // compact by default
@@ -1882,7 +1907,8 @@
                             if (!r.is_active) return;
                             const btn = document.createElement('button');
                             btn.className = 'btn btn-sm btn-outline-primary';
-                            const text = (r.response_text || '').replace(/\n/g,' ');
+                            let text = (r.response_text || '').replace(/\n/g,' ');
+                            text = this.stripEmoji(text);
                             btn.textContent = text.length > 30 ? text.substring(0,30) + '...' : text;
                             btn.title = r.response_text;
                             btn.addEventListener('click', () => {
@@ -1904,7 +1930,8 @@
                         resp.data.slice(0,4).forEach(t => {
                             const btn = document.createElement('button');
                             btn.className = 'btn btn-sm btn-outline-secondary';
-                            const text = (t.body_text || t.name || t.template_name || '').replace(/\n/g,' ');
+                            let text = (t.body_text || t.name || t.template_name || '').replace(/\n/g,' ');
+                            text = this.stripEmoji(text);
                             btn.textContent = text.length > 30 ? text.substring(0,30) + '...' : text;
                             btn.title = t.name;
                             btn.addEventListener('click', () => { this.sendTemplateQuick(t.template_name, t.language_code || 'es'); panel.style.display='none'; document.getElementById('quick-replies-toggle').setAttribute('aria-expanded','false'); });
@@ -2232,6 +2259,16 @@
                 const i = Math.floor(Math.log(bytes) / Math.log(k));
                 return Math.round(bytes / Math.pow(k, i) * 100) / 100 + ' ' + sizes[i];
             }
+
+            // Remove common emoji/pictograph characters for minimal quick reply labels
+            stripEmoji(text) {
+                if (!text) return '';
+                try {
+                    return String(text).replace(/[\u{1F300}-\u{1FAFF}\u{1F600}-\u{1F64F}\u{1F680}-\u{1F6FF}\u{2600}-\u{26FF}\u{2700}-\u{27BF}]/gu, '').trim();
+                } catch (e) {
+                    return String(text);
+                }
+            }
             
             async sendMediaMessage() {
                 if (!this.selectedFile || !this.currentUserId) return;