diff --git a/notification/scripts/display.js b/notification/scripts/display.js
index cbe2d8e..34b848f 100644
--- a/notification/scripts/display.js
+++ b/notification/scripts/display.js
@@ -31,13 +31,16 @@ function updateDisplay() {
 
 function formatTime(ms) {
     try {
-        if (ms < 0) return '00:00';
+        if (ms < 0) return '00:00:00';
         var totalSeconds = Math.floor(ms / 1000),
-            minutes = Math.floor(totalSeconds / 60),
+            hours = Math.floor(totalSeconds / 3600),
+            minutes = Math.floor((totalSeconds % 3600) / 60),
             seconds = totalSeconds % 60;
-        return (minutes < 10 ? '0' : '') + minutes + ':' + (seconds < 10 ? '0' : '') + seconds;
+        return (hours < 10 ? '0' : '') + hours + ':' +
+               (minutes < 10 ? '0' : '') + minutes + ':' +
+               (seconds < 10 ? '0' : '') + seconds;
     } catch (e) {
-        return '--:--';
+        return '--:--:--';
     }
 }
 
diff --git a/notification/styles/action-btn.css b/notification/styles/action-btn.css
index 21f1d5e..44fce6f 100644
--- a/notification/styles/action-btn.css
+++ b/notification/styles/action-btn.css
@@ -10,6 +10,9 @@
     transition: all 0.2s ease;
     box-shadow: 0 4px 12px rgba(39, 174, 96, 0.25);
     margin-top: 10px;
+    margin: 0;
+    height: 38px;
+    line-height: 18px;
 }
 .action-btn:hover {
     transform: translateY(-1px);
diff --git a/notification/styles/schedule-table.css b/notification/styles/schedule-table.css
index 3137192..e1b3e15 100644
--- a/notification/styles/schedule-table.css
+++ b/notification/styles/schedule-table.css
@@ -7,15 +7,17 @@
     overflow: hidden;
     box-shadow: 0 4px 12px rgba(0,0,0,0.08);
 }
+.schedule-table th, .schedule-table td {
+    padding: 14px 16px;
+    text-align: left;
+}
 .schedule-table th {
     background: #f8f9fa;
-    padding: 16px;
     color: #57606f;
     font-weight: 600;
     border-bottom: 2px solid #e0e6ed;
 }
 .schedule-table td {
-    padding: 14px;
     border-bottom: 1px solid #f1f3f6;
 }
 .current-class {