diff --git a/frontend/src/components/BackendServers.js b/frontend/src/components/BackendServers.js
index eff81c9..ae25077 100644
--- a/frontend/src/components/BackendServers.js
+++ b/frontend/src/components/BackendServers.js
@@ -1047,28 +1047,28 @@ const BackendServers = () => {
       title: 'Servers',
       dataIndex: 'servers',
       key: 'servers',
+      width: 100,
       render: (servers = []) => {
-        // CRITICAL FIX: Handle null/undefined servers array for backends without servers
         if (!servers || !Array.isArray(servers)) {
           return (
-            <Space>
-              <Tag color="red">0</Tag>
-              <span>/0</span>
-              <Text type="secondary">active</Text>
-              <Tooltip title="No servers configured. Please add at least one server.">
-                <Tag color="warning" style={{ marginLeft: 4, fontSize: '10px' }}>⚠️ Empty</Tag>
-              </Tooltip>
-            </Space>
+            <Tooltip title="No servers configured. Please add at least one server.">
+              <Tag color="red" style={{ cursor: 'pointer' }}>0 / 0</Tag>
+            </Tooltip>
           );
         }
         const activeServers = servers.filter(s => s.is_active).length;
         const totalServers = servers.length;
+        const allActive = activeServers === totalServers;
+        const tooltipText = `${activeServers} active / ${totalServers} total server${totalServers !== 1 ? 's' : ''}`;
         return (
-          <Space>
-            <Tag color="green">{activeServers}</Tag>
-            <span>/{totalServers}</span>
-            <Text type="secondary">active</Text>
-          </Space>
+          <Tooltip title={tooltipText}>
+            <Tag
+              color={allActive ? 'green' : 'orange'}
+              style={{ cursor: 'default', fontWeight: 500 }}
+            >
+              {activeServers} / {totalServers}
+            </Tag>
+          </Tooltip>
         );
       },
     },
diff --git a/frontend/src/components/ClusterSelector.js b/frontend/src/components/ClusterSelector.js
index 661036a..72946c1 100644
--- a/frontend/src/components/ClusterSelector.js
+++ b/frontend/src/components/ClusterSelector.js
@@ -82,16 +82,40 @@ const ClusterSelector = () => {
     return Math.max(250, Math.min(estimated, 500));
   };
 
+  const isUnselected = !selectedCluster;
+
   return (
-    <div style={{ display: 'flex', alignItems: 'center', gap: '8px', minWidth: 0 }}>
-      <CloudServerOutlined style={{ color: '#1890ff', flexShrink: 0 }} />
+    <div style={{
+      display: 'flex',
+      alignItems: 'center',
+      gap: '10px',
+      minWidth: 0,
+      padding: '4px 12px',
+      borderRadius: 8,
+      background: isUnselected ? 'rgba(24, 144, 255, 0.06)' : 'rgba(24, 144, 255, 0.03)',
+      border: isUnselected ? '1.5px dashed rgba(24, 144, 255, 0.45)' : '1px solid transparent',
+      transition: 'all 0.3s ease',
+      animation: isUnselected ? 'clusterPulse 2.5s ease-in-out infinite' : 'none',
+    }}>
+      <style>{`
+        @keyframes clusterPulse {
+          0%, 100% { border-color: rgba(24, 144, 255, 0.25); background: rgba(24, 144, 255, 0.04); }
+          50% { border-color: rgba(24, 144, 255, 0.55); background: rgba(24, 144, 255, 0.09); }
+        }
+      `}</style>
+      <CloudServerOutlined style={{ color: '#1890ff', flexShrink: 0, fontSize: 16 }} />
+      {isUnselected && (
+        <span style={{ fontSize: 12, color: '#1890ff', fontWeight: 500, whiteSpace: 'nowrap', flexShrink: 0 }}>
+          Cluster:
+        </span>
+      )}
       <Select
         value={selectedCluster?.id}
         showSearch
-        style={{ 
+        style={{
           width: getSelectWidth(),
-          minWidth: 180, 
-          maxWidth: 500 
+          minWidth: 180,
+          maxWidth: 500,
         }}
         placeholder="Select HAProxy Cluster"
         onChange={(clusterId) => {