diff --git a/frontend/src/views/setup/SetupWizardView.vue b/frontend/src/views/setup/SetupWizardView.vue
index 1840e297..4a00fc75 100644
--- a/frontend/src/views/setup/SetupWizardView.vue
+++ b/frontend/src/views/setup/SetupWizardView.vue
@@ -128,7 +128,7 @@
                 v-model="formData.database.password"
                 type="password"
                 class="input"
-                placeholder="Password"
+                :placeholder="t('setup.database.passwordPlaceholder')"
               />
             </div>
           </div>
@@ -234,7 +234,7 @@
                 v-model="formData.redis.password"
                 type="password"
                 class="input"
-                placeholder="Password"
+                :placeholder="t('setup.redis.passwordPlaceholder')"
               />
             </div>
             <div>
@@ -320,7 +320,7 @@
               v-model="formData.admin.password"
               type="password"
               class="input"
-              placeholder="Min 6 characters"
+              :placeholder="t('setup.admin.passwordPlaceholder')"
             />
           </div>
 
@@ -330,13 +330,13 @@
               v-model="confirmPassword"
               type="password"
               class="input"
-              placeholder="Confirm password"
+              :placeholder="t('setup.admin.confirmPasswordPlaceholder')"
             />
             <p
               v-if="confirmPassword && formData.admin.password !== confirmPassword"
               class="input-error-text"
             >
-              Passwords do not match
+              {{ t('setup.admin.passwordMismatch') }}
             </p>
           </div>
         </div>
diff --git a/frontend/src/views/user/KeysView.vue b/frontend/src/views/user/KeysView.vue
index 6ad6bf5d..c383e4d2 100644
--- a/frontend/src/views/user/KeysView.vue
+++ b/frontend/src/views/user/KeysView.vue
@@ -154,8 +154,7 @@
               <!-- Use Key Button -->
               <button
                 @click="openUseKeyModal(row)"
-                class="rounded-lg p-2 text-gray-500 transition-colors hover:bg-green-50 hover:text-green-600 dark:hover:bg-green-900/20 dark:hover:text-green-400"
-                :title="t('keys.useKey')"
+                class="flex flex-col items-center gap-0.5 rounded-lg p-1.5 text-gray-500 transition-colors hover:bg-green-50 hover:text-green-600 dark:hover:bg-green-900/20 dark:hover:text-green-400"
               >
                 <svg
                   class="h-4 w-4"
@@ -170,12 +169,12 @@
                     d="M6.75 7.5l3 2.25-3 2.25m4.5 0h3m-9 8.25h13.5A2.25 2.25 0 0021 18V6a2.25 2.25 0 00-2.25-2.25H5.25A2.25 2.25 0 003 6v12a2.25 2.25 0 002.25 2.25z"
                   />
                 </svg>
+                <span class="text-xs">{{ t('keys.useKey') }}</span>
               </button>
               <!-- Import to CC Switch Button -->
               <button
                 @click="importToCcswitch(row.key)"
-                class="rounded-lg p-2 text-gray-500 transition-colors hover:bg-blue-50 hover:text-blue-600 dark:hover:bg-blue-900/20 dark:hover:text-blue-400"
-                :title="t('keys.importToCcSwitch')"
+                class="flex flex-col items-center gap-0.5 rounded-lg p-1.5 text-gray-500 transition-colors hover:bg-blue-50 hover:text-blue-600 dark:hover:bg-blue-900/20 dark:hover:text-blue-400"
               >
                 <svg
                   class="h-4 w-4"
@@ -190,17 +189,17 @@
                     d="M3 16.5v2.25A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75V16.5m-13.5-9L12 3m0 0l4.5 4.5M12 3v13.5"
                   />
                 </svg>
+                <span class="text-xs">{{ t('keys.importToCcSwitch') }}</span>
               </button>
               <!-- Toggle Status Button -->
               <button
                 @click="toggleKeyStatus(row)"
                 :class="[
-                  'rounded-lg p-2 transition-colors',
+                  'flex flex-col items-center gap-0.5 rounded-lg p-1.5 transition-colors',
                   row.status === 'active'
                     ? 'text-gray-500 hover:bg-yellow-50 hover:text-yellow-600 dark:hover:bg-yellow-900/20 dark:hover:text-yellow-400'
                     : 'text-gray-500 hover:bg-green-50 hover:text-green-600 dark:hover:bg-green-900/20 dark:hover:text-green-400'
                 ]"
-                :title="row.status === 'active' ? t('keys.disable') : t('keys.enable')"
               >
                 <svg
                   v-if="row.status === 'active'"
@@ -230,12 +229,12 @@
                     d="M9 12.75L11.25 15 15 9.75M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
                   />
                 </svg>
+                <span class="text-xs">{{ row.status === 'active' ? t('keys.disable') : t('keys.enable') }}</span>
               </button>
               <!-- Edit Button -->
               <button
                 @click="editKey(row)"
-                class="rounded-lg p-2 text-gray-500 transition-colors hover:bg-gray-100 hover:text-primary-600 dark:hover:bg-dark-700 dark:hover:text-primary-400"
-                :title="t('common.edit')"
+                class="flex flex-col items-center gap-0.5 rounded-lg p-1.5 text-gray-500 transition-colors hover:bg-gray-100 hover:text-primary-600 dark:hover:bg-dark-700 dark:hover:text-primary-400"
               >
                 <svg
                   class="h-4 w-4"
@@ -250,12 +249,12 @@
                     d="M16.862 4.487l1.687-1.688a1.875 1.875 0 112.652 2.652L10.582 16.07a4.5 4.5 0 01-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 011.13-1.897l8.932-8.931zm0 0L19.5 7.125M18 14v4.75A2.25 2.25 0 0115.75 21H5.25A2.25 2.25 0 013 18.75V8.25A2.25 2.25 0 015.25 6H10"
                   />
                 </svg>
+                <span class="text-xs">{{ t('common.edit') }}</span>
               </button>
               <!-- Delete Button -->
               <button
                 @click="confirmDelete(row)"
-                class="rounded-lg p-2 text-gray-500 transition-colors hover:bg-red-50 hover:text-red-600 dark:hover:bg-red-900/20 dark:hover:text-red-400"
-                :title="t('common.delete')"
+                class="flex flex-col items-center gap-0.5 rounded-lg p-1.5 text-gray-500 transition-colors hover:bg-red-50 hover:text-red-600 dark:hover:bg-red-900/20 dark:hover:text-red-400"
               >
                 <svg
                   class="h-4 w-4"
@@ -270,6 +269,7 @@
                     d="M14.74 9l-.346 9m-4.788 0L9.26 9m9.968-3.21c.342.052.682.107 1.022.166m-1.022-.165L18.16 19.673a2.25 2.25 0 01-2.244 2.077H8.084a2.25 2.25 0 01-2.244-2.077L4.772 5.79m14.456 0a48.108 48.108 0 00-3.478-.397m-12 .562c.34-.059.68-.114 1.022-.165m0 0a48.11 48.11 0 013.478-.397m7.5 0v-.916c0-1.18-.91-2.164-2.09-2.201a51.964 51.964 0 00-3.32 0c-1.18.037-2.09 1.022-2.09 2.201v.916m7.5 0a48.667 48.667 0 00-7.5 0"
                   />
                 </svg>
+                <span class="text-xs">{{ t('common.delete') }}</span>
               </button>
             </div>
           </template>
diff --git a/frontend/src/views/user/UsageView.vue b/frontend/src/views/user/UsageView.vue
index 10d5b94e..f9a628e8 100644
--- a/frontend/src/views/user/UsageView.vue
+++ b/frontend/src/views/user/UsageView.vue
@@ -294,7 +294,11 @@
                 ${{ row.actual_cost.toFixed(6) }}
               </span>
               <!-- Cost Detail Tooltip -->
-              <div class="group relative">
+              <div
+                class="group relative"
+                @mouseenter="showTooltip($event, row)"
+                @mouseleave="hideTooltip"
+              >
                 <div
                   class="flex h-4 w-4 cursor-help items-center justify-center rounded-full bg-gray-100 transition-colors group-hover:bg-blue-100 dark:bg-gray-700 dark:group-hover:bg-blue-900/50"
                 >
@@ -310,39 +314,6 @@
                     />
                   </svg>
                 </div>
-                <!-- Tooltip Content (right side) -->
-                <div
-                  class="invisible absolute left-full top-1/2 z-[100] ml-2 -translate-y-1/2 opacity-0 transition-all duration-200 group-hover:visible group-hover:opacity-100"
-                >
-                  <div
-                    class="whitespace-nowrap rounded-lg border border-gray-700 bg-gray-900 px-3 py-2.5 text-xs text-white shadow-xl dark:border-gray-600 dark:bg-gray-800"
-                  >
-                    <div class="space-y-1.5">
-                      <div class="flex items-center justify-between gap-6">
-                        <span class="text-gray-400">{{ t('usage.rate') }}</span>
-                        <span class="font-semibold text-blue-400"
-                          >{{ (row.rate_multiplier || 1).toFixed(2) }}x</span
-                        >
-                      </div>
-                      <div class="flex items-center justify-between gap-6">
-                        <span class="text-gray-400">{{ t('usage.original') }}</span>
-                        <span class="font-medium text-white">${{ row.total_cost.toFixed(6) }}</span>
-                      </div>
-                      <div
-                        class="flex items-center justify-between gap-6 border-t border-gray-700 pt-1.5"
-                      >
-                        <span class="text-gray-400">{{ t('usage.billed') }}</span>
-                        <span class="font-semibold text-green-400"
-                          >${{ row.actual_cost.toFixed(6) }}</span
-                        >
-                      </div>
-                    </div>
-                    <!-- Tooltip Arrow (left side) -->
-                    <div
-                      class="absolute right-full top-1/2 h-0 w-0 -translate-y-1/2 border-b-[6px] border-r-[6px] border-t-[6px] border-b-transparent border-r-gray-900 border-t-transparent dark:border-r-gray-800"
-                    ></div>
-                  </div>
-                </div>
               </div>
             </div>
           </template>
@@ -399,6 +370,45 @@
       </template>
     </TablePageLayout>
   </AppLayout>
+
+  <!-- Tooltip Portal -->
+  <Teleport to="body">
+    <div
+      v-if="tooltipVisible"
+      class="fixed z-[9999] pointer-events-none -translate-y-1/2"
+      :style="{
+        left: tooltipPosition.x + 'px',
+        top: tooltipPosition.y + 'px'
+      }"
+    >
+      <div
+        class="whitespace-nowrap rounded-lg border border-gray-700 bg-gray-900 px-3 py-2.5 text-xs text-white shadow-xl dark:border-gray-600 dark:bg-gray-800"
+      >
+        <div class="space-y-1.5">
+          <div class="flex items-center justify-between gap-6">
+            <span class="text-gray-400">{{ t('usage.rate') }}</span>
+            <span class="font-semibold text-blue-400"
+              >{{ (tooltipData?.rate_multiplier || 1).toFixed(2) }}x</span
+            >
+          </div>
+          <div class="flex items-center justify-between gap-6">
+            <span class="text-gray-400">{{ t('usage.original') }}</span>
+            <span class="font-medium text-white">${{ tooltipData?.total_cost.toFixed(6) }}</span>
+          </div>
+          <div class="flex items-center justify-between gap-6 border-t border-gray-700 pt-1.5">
+            <span class="text-gray-400">{{ t('usage.billed') }}</span>
+            <span class="font-semibold text-green-400"
+              >${{ tooltipData?.actual_cost.toFixed(6) }}</span
+            >
+          </div>
+        </div>
+        <!-- Tooltip Arrow (left side) -->
+        <div
+          class="absolute right-full top-1/2 h-0 w-0 -translate-y-1/2 border-b-[6px] border-r-[6px] border-t-[6px] border-b-transparent border-r-gray-900 border-t-transparent dark:border-r-gray-800"
+        ></div>
+      </div>
+    </div>
+  </Teleport>
 </template>
 
 <script setup lang="ts">
@@ -420,6 +430,11 @@ import { formatDateTime } from '@/utils/format'
 const { t } = useI18n()
 const appStore = useAppStore()
 
+// Tooltip state
+const tooltipVisible = ref(false)
+const tooltipPosition = ref({ x: 0, y: 0 })
+const tooltipData = ref<UsageLog | null>(null)
+
 // Usage stats from API
 const usageStats = ref<UsageStatsResponse | null>(null)
 
@@ -629,6 +644,23 @@ const exportToCSV = () => {
   appStore.showSuccess(t('usage.exportSuccess'))
 }
 
+// Tooltip functions
+const showTooltip = (event: MouseEvent, row: UsageLog) => {
+  const target = event.currentTarget as HTMLElement
+  const rect = target.getBoundingClientRect()
+
+  tooltipData.value = row
+  // Position to the right of the icon, vertically centered
+  tooltipPosition.value.x = rect.right + 8
+  tooltipPosition.value.y = rect.top + rect.height / 2
+  tooltipVisible.value = true
+}
+
+const hideTooltip = () => {
+  tooltipVisible.value = false
+  tooltipData.value = null
+}
+
 onMounted(() => {
   initializeDateRange()
   loadApiKeys()