diff --git a/pvc-vue/src/App.vue b/pvc-vue/src/App.vue
index 3a3061f..ebb8b23 100644
--- a/pvc-vue/src/App.vue
+++ b/pvc-vue/src/App.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="d-flex">
+  <div class="app-container">
     <!-- Sidebar -->
     <div class="sidebar bg-dark" :class="{ 'collapsed': sidebarCollapsed }">
       <div class="sidebar-header">
@@ -9,7 +9,12 @@
         </button>
       </div>
       <div class="sidebar-content">
-        <!-- Future navigation items can go here -->
+        <nav class="nav-menu">
+          <router-link to="/" class="nav-item active">
+            <i class="fas fa-home"></i>
+            <span class="nav-text">Overview</span>
+          </router-link>
+        </nav>
       </div>
       <div class="sidebar-footer">
         <button class="btn btn-outline-light w-100" @click="toggleConfig">
@@ -171,32 +176,78 @@ onUnmounted(() => {
 @import 'bootstrap/dist/css/bootstrap.min.css';
 @import '@fortawesome/fontawesome-free/css/all.min.css';
 
+.app-container {
+  display: flex;
+  min-height: 100vh;
+  width: 100%;
+}
+
 .sidebar {
   width: 250px;
   height: 100vh;
   position: fixed;
   left: 0;
   top: 0;
-  padding: 1rem;
+  padding: 0.75rem 0.5rem;
   transition: all 0.3s ease;
   display: flex;
   flex-direction: column;
+  z-index: 1000;
 }
 
 .sidebar.collapsed {
   width: 60px;
 }
 
+/* Collapsed sidebar styles */
 .sidebar.collapsed .sidebar-header h5,
-.sidebar.collapsed .sidebar-content,
-.sidebar.collapsed .config-text {
+.sidebar.collapsed .config-text,
+.sidebar.collapsed .nav-text {
   display: none;
 }
 
+.sidebar.collapsed .nav-menu {
+  padding: 0.5rem 0;
+}
+
+.sidebar.collapsed .nav-item {
+  padding: 0.75rem 0.25rem;
+  justify-content: center;
+}
+
+.sidebar.collapsed .nav-item i {
+  margin-right: 0;
+  font-size: 1.1rem;
+}
+
+.sidebar.collapsed .sidebar-footer .btn {
+  padding: 0.375rem;
+  display: flex;
+  justify-content: center;
+}
+
+.main-content {
+  flex: 1;
+  padding-left: 262px;
+  padding-right: 0.5rem;
+  padding-top: 0.5rem;
+  padding-bottom: 0.5rem;
+  transition: padding-left 0.3s ease;
+  min-height: 100vh;
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.main-content.expanded {
+  padding-left: 72px;
+}
+
 .sidebar-header {
-  padding-bottom: 1rem;
+  padding-left: 0.25rem;
+  padding-right: 0.25rem;
+  padding-bottom: 0.75rem;
   border-bottom: 1px solid rgba(255,255,255,0.1);
-  margin-bottom: 1rem;
+  margin-bottom: 0.75rem;
   display: flex;
   justify-content: space-between;
   align-items: center;
@@ -217,29 +268,18 @@ onUnmounted(() => {
 
 .sidebar-footer {
   margin-top: auto;
-  padding-top: 1rem;
+  padding-left: 0.25rem;
+  padding-right: 0.25rem;
+  padding-top: 0.75rem;
   border-top: 1px solid rgba(255,255,255,0.1);
 }
 
 .sidebar.collapsed .sidebar-footer .btn {
-  padding: 0.375rem;
+  padding: 0.375rem 0.5rem;
   display: flex;
   justify-content: center;
 }
 
-.main-content {
-  margin-left: 250px;
-  padding: 0.5rem;
-  width: calc(100% - 250px);
-  min-height: 100vh;
-  transition: all 0.3s ease;
-}
-
-.main-content.expanded {
-  margin-left: 60px;
-  width: calc(100% - 60px);
-}
-
 .content-grid {
   display: flex;
   flex-direction: column;
@@ -253,4 +293,60 @@ onUnmounted(() => {
 .status-healthy { color: #28a745; }
 .status-warning { color: #ffc107; }
 .status-error { color: #dc3545; }
+
+.nav-menu {
+  padding: 0.5rem 0;
+}
+
+.nav-item {
+  display: flex;
+  align-items: center;
+  padding: 0.75rem 0.5rem;
+  color: rgba(255, 255, 255, 0.8);
+  text-decoration: none;
+  transition: all 0.2s;
+  border-left: 3px solid transparent;
+}
+
+.nav-item:hover {
+  color: white;
+  background: rgba(255, 255, 255, 0.1);
+}
+
+.nav-item.active {
+  color: white;
+  background: rgba(255, 255, 255, 0.05);
+  border-left-color: #0d6efd;
+}
+
+.nav-item i {
+  width: 1.25rem;
+  text-align: center;
+  margin-right: 1rem;
+}
+
+.nav-text {
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.sidebar.collapsed .nav-text {
+  display: none;
+}
+
+.sidebar.collapsed .nav-item {
+  padding: 0.75rem 0.25rem;
+  justify-content: center;
+}
+
+.sidebar.collapsed .nav-item i {
+  margin-right: 0;
+}
+
+.sidebar.collapsed .sidebar-footer .btn {
+  padding: 0.375rem 0.5rem;
+  display: flex;
+  justify-content: center;
+}
 </style>
diff --git a/pvc-vue/src/components/ClusterOverview.vue b/pvc-vue/src/components/ClusterOverview.vue
index 7b79754..1383215 100644
--- a/pvc-vue/src/components/ClusterOverview.vue
+++ b/pvc-vue/src/components/ClusterOverview.vue
@@ -163,7 +163,9 @@
                   {{ metricsData.cpu.data[metricsData.cpu.data.length - 1] || 0 }}%
                 </h4>
               </div>
-              <Line :data="cpuChartData" :options="chartOptions" />
+              <div class="chart-wrapper">
+                <Line :data="cpuChartData" :options="chartOptions" />
+              </div>
             </div>
           </div>
           <!-- Memory Chart -->
@@ -359,6 +361,8 @@ const healthChartOptions = {
   responsive: true,
   maintainAspectRatio: false,
   clip: false,
+  resizeDelay: 0,
+  responsiveAnimationDuration: 0,  /* Disable resize animation */
   plugins: {
     legend: {
       display: false
@@ -408,6 +412,9 @@ const healthChartOptions = {
     enabled: true,
     mode: 'nearest',
     intersect: false
+  },
+  onResize: (chart, size) => {
+    chart.resize();  /* Force resize on container change */
   }
 };
 
@@ -469,6 +476,8 @@ const chartOptions = {
   responsive: true,
   maintainAspectRatio: false,
   clip: false,
+  resizeDelay: 0,
+  responsiveAnimationDuration: 0,  /* Disable resize animation */
   plugins: {
     legend: {
       display: false
@@ -500,6 +509,9 @@ const chartOptions = {
     enabled: true,
     mode: 'nearest',
     intersect: false
+  },
+  onResize: (chart, size) => {
+    chart.resize();  /* Force resize on container change */
   }
 };
 </script>
@@ -509,18 +521,21 @@ const chartOptions = {
   display: flex;
   flex-direction: column;
   gap: 0.5rem;
+  width: 100%;
 }
 
 .graphs-row {
   display: grid;
   grid-template-columns: repeat(4, 1fr);
   gap: 0.5rem;
+  width: 100%;
 }
 
 .metrics-row {
   display: grid;
-  grid-template-columns: repeat(8, 1fr);
+  grid-template-columns: 1fr minmax(auto, 1.2fr) repeat(6, 1fr);  /* Version card (2nd) gets more space */
   gap: 0.5rem;
+  width: 100%;
 }
 
 .health-card {
@@ -528,6 +543,7 @@ const chartOptions = {
   border: 1px solid rgba(0,0,0,0.125);
   border-radius: 0.25rem;
   height: 100%;
+  width: 100%;
 }
 
 .health-content-wrapper {
@@ -544,6 +560,8 @@ const chartOptions = {
   min-height: 0;
   display: flex;
   align-items: center;
+  width: 100%;
+  overflow: hidden;  /* Ensure graph doesn't overflow */
 }
 
 .health-percentage {
@@ -692,22 +710,12 @@ const chartOptions = {
   height: 100%;
   display: flex;
   flex-direction: column;
+  min-width: 0;
+  width: 100%;  /* Take full width of grid cell */
 }
 
-.metric-card .card-body {
-  flex: 1;
-  padding: 0.5rem;
-  display: flex;
-  flex-direction: column;
-  position: relative;
-}
-
-.metric-card .metric-value {
-  font-size: 1.25rem;  /* Return to original size for metric cards */
-  font-weight: bold;
-  color: #333;
-  line-height: 1;
-  margin: 0;
+.metric-card .card-header {
+  text-align: left;
 }
 
 .card-header h6 {
@@ -718,6 +726,29 @@ const chartOptions = {
   align-items: center;
 }
 
+.metric-card .card-body {
+  flex: 1;
+  padding: 0.5rem;
+  display: flex;
+  flex-direction: column;
+  position: relative;
+  width: 100%;
+  overflow: visible;
+  justify-content: center;
+  align-items: center;
+}
+
+.metric-card .metric-value {
+  font-size: 1.25rem;
+  font-weight: bold;
+  color: #333;
+  line-height: 1;
+  margin: 0;
+  text-align: center;
+  white-space: nowrap;  /* Prevent text wrapping */
+  min-width: fit-content;  /* Allow text to determine minimum width */
+}
+
 .metric-label {
   color: #666;
 }
@@ -745,26 +776,20 @@ const chartOptions = {
 }
 
 @media (max-width: 1400px) {
-  .graphs-row {
-    grid-template-columns: 1fr 1fr;
-  }
   .metrics-row {
-    grid-template-columns: repeat(4, 1fr);
+    grid-template-columns: 1fr minmax(auto, 1.2fr) repeat(2, 1fr);
   }
 }
 
 @media (max-width: 992px) {
   .metrics-row {
-    grid-template-columns: repeat(3, 1fr);
+    grid-template-columns: 1fr minmax(auto, 1.2fr) 1fr;
   }
 }
 
 @media (max-width: 576px) {
-  .graphs-row {
-    grid-template-columns: 1fr;
-  }
   .metrics-row {
-    grid-template-columns: repeat(2, 1fr);
+    grid-template-columns: 1fr minmax(auto, 1.2fr);
   }
 }
 
@@ -802,4 +827,12 @@ const chartOptions = {
   outline: none;
   box-shadow: none;
 }
+
+/* Add a wrapper for the chart to ensure proper sizing */
+.chart-wrapper {
+  position: relative;
+  width: 100%;
+  height: 100%;
+  min-width: 0;
+}
 </style>