diff --git a/frontend/src/components/account/OpenAIQuotaResetCell.vue b/frontend/src/components/account/OpenAIQuotaResetCell.vue
index b7da95cf2..c1b5e1eec 100644
--- a/frontend/src/components/account/OpenAIQuotaResetCell.vue
+++ b/frontend/src/components/account/OpenAIQuotaResetCell.vue
@@ -66,7 +66,7 @@
     <div v-if="primaryResetCreditExpiry" class="space-y-1">
       <div class="flex flex-wrap items-center gap-1">
         <span
-          class="inline-flex max-w-full items-center rounded bg-gray-100 px-1.5 py-0.5 text-[10px] leading-4 text-gray-600 tabular-nums dark:bg-gray-800 dark:text-gray-300"
+          class="inline-flex max-w-full items-center rounded bg-gray-100 px-1.5 py-0.5 text-[10px] leading-4 text-gray-600 tabular-nums dark:bg-dark-800 dark:text-gray-300"
           :title="t('admin.accounts.openaiQuotaReset.expiresAtFull', { time: formatResetCreditExpiry(primaryResetCreditExpiry, 'full') })"
         >
           {{ t('admin.accounts.openaiQuotaReset.expiresAt', { time: formatResetCreditExpiry(primaryResetCreditExpiry, 'short') }) }}
@@ -75,7 +75,7 @@
           v-if="hiddenResetCreditCount > 0"
           type="button"
           data-testid="reset-credit-expiry-toggle"
-          class="inline-flex items-center rounded-full bg-gray-100 px-1.5 py-0.5 text-[10px] font-medium leading-4 text-gray-600 transition-colors hover:bg-gray-200 dark:bg-gray-800 dark:text-gray-300 dark:hover:bg-gray-700"
+          class="inline-flex items-center rounded-full bg-gray-100 px-1.5 py-0.5 text-[10px] font-medium leading-4 text-gray-600 transition-colors hover:bg-gray-200 dark:bg-dark-800 dark:text-gray-300 dark:hover:bg-dark-700"
           :aria-expanded="showResetCreditDetails"
           :aria-label="resetCreditDetailsToggleLabel"
           :title="resetCreditDetailsTitle"
@@ -88,7 +88,7 @@
       <div
         v-if="showResetCreditDetails && resetCreditExpirations.length > 1"
         data-testid="reset-credit-expiry-details"
-        class="inline-grid max-w-full gap-0.5 rounded border border-gray-200 bg-white px-1.5 py-1 text-[10px] leading-4 text-gray-600 shadow-sm dark:border-gray-700 dark:bg-gray-900 dark:text-gray-300"
+        class="inline-grid max-w-full gap-0.5 rounded border border-gray-200 bg-white px-1.5 py-1 text-[10px] leading-4 text-gray-600 shadow-sm dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300"
       >
         <span class="sr-only">{{ t('admin.accounts.openaiQuotaReset.expirationDetails') }}</span>
         <span
@@ -97,7 +97,7 @@
           class="flex min-w-0 items-center gap-1 tabular-nums"
           :title="t('admin.accounts.openaiQuotaReset.expiresAtFull', { time: formatResetCreditExpiry(expiresAt, 'full') })"
         >
-          <span class="h-1 w-1 shrink-0 rounded-full bg-gray-400 dark:bg-gray-500" />
+          <span class="h-1 w-1 shrink-0 rounded-full bg-gray-400 dark:bg-dark-500" />
           <span class="truncate">{{ formatResetCreditExpiry(expiresAt, 'short') }}</span>
         </span>
       </div>
diff --git a/frontend/src/components/account/UpstreamBillingRateCell.vue b/frontend/src/components/account/UpstreamBillingRateCell.vue
index 98e5671b6..f0c86dcab 100644
--- a/frontend/src/components/account/UpstreamBillingRateCell.vue
+++ b/frontend/src/components/account/UpstreamBillingRateCell.vue
@@ -3,7 +3,7 @@
     <HelpTooltip class="-ml-1" width-class="w-max max-w-[calc(100vw-2rem)]" data-testid="upstream-billing-details">
       <template #trigger>
         <span
-          class="cursor-help border-b border-dotted border-gray-300 text-sm font-medium dark:border-gray-600"
+          class="cursor-help border-b border-dotted border-gray-300 text-sm font-medium dark:border-dark-600"
           :class="hasEffectiveRate ? 'font-mono text-gray-800 dark:text-gray-200' : statusClass || 'text-gray-400 dark:text-gray-500'"
           data-testid="upstream-billing-rate"
         >
diff --git a/frontend/src/components/admin/usage/UsageFilters.vue b/frontend/src/components/admin/usage/UsageFilters.vue
index d1e15d2cf..674730370 100644
--- a/frontend/src/components/admin/usage/UsageFilters.vue
+++ b/frontend/src/components/admin/usage/UsageFilters.vue
@@ -26,14 +26,14 @@
           </button>
           <div
             v-if="showUserDropdown && (userResults.length > 0 || userKeyword)"
-            class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border bg-white shadow-lg dark:bg-gray-800"
+            class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border bg-white shadow-lg dark:bg-dark-800"
           >
             <button
               v-for="u in userResults"
               :key="u.id"
               type="button"
               @click="selectUser(u)"
-              class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-gray-700"
+              class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-dark-700"
             >
               <span>{{ u.email }}<span v-if="u.deleted" class="ml-1 text-xs text-gray-400">（{{ t('admin.usage.userDeletedBadge') }}）</span></span>
               <span class="ml-2 text-xs text-gray-400">#{{ u.id }}</span>
@@ -63,14 +63,14 @@
           </button>
           <div
             v-if="showApiKeyDropdown && apiKeyResults.length > 0"
-            class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border bg-white shadow-lg dark:bg-gray-800"
+            class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border bg-white shadow-lg dark:bg-dark-800"
           >
             <button
               v-for="k in apiKeyResults"
               :key="k.id"
               type="button"
               @click="selectApiKey(k)"
-              class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-gray-700"
+              class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-dark-700"
             >
               <span class="truncate">{{ k.name || `#${k.id}` }}</span>
               <span class="ml-2 text-xs text-gray-400">#{{ k.id }}</span>
@@ -106,14 +106,14 @@
           </button>
           <div
             v-if="showAccountDropdown && (accountResults.length > 0 || accountKeyword)"
-            class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border bg-white shadow-lg dark:bg-gray-800"
+            class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border bg-white shadow-lg dark:bg-dark-800"
           >
             <button
               v-for="a in accountResults"
               :key="a.id"
               type="button"
               @click="selectAccount(a)"
-              class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-gray-700"
+              class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-dark-700"
             >
               <span class="truncate">{{ a.name }}</span>
               <span class="ml-2 text-xs text-gray-400">#{{ a.id }}</span>
diff --git a/frontend/src/components/charts/EndpointDistributionChart.vue b/frontend/src/components/charts/EndpointDistributionChart.vue
index b35f0ca01..b99cfc8ae 100644
--- a/frontend/src/components/charts/EndpointDistributionChart.vue
+++ b/frontend/src/components/charts/EndpointDistributionChart.vue
@@ -7,7 +7,7 @@
       <div class="flex flex-wrap items-center justify-end gap-2">
         <div
           v-if="showSourceToggle"
-          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-gray-700 dark:bg-dark-800"
+          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-dark-700 dark:bg-dark-800"
         >
           <button
             type="button"
@@ -43,7 +43,7 @@
 
         <div
           v-if="showMetricToggle"
-          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-gray-700 dark:bg-dark-800"
+          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-dark-700 dark:bg-dark-800"
         >
           <button
             type="button"
@@ -89,7 +89,7 @@
           <tbody>
             <template v-for="item in displayEndpointStats" :key="item.endpoint">
               <tr
-                class="border-t border-gray-100 transition-colors dark:border-gray-700"
+                class="border-t border-gray-100 transition-colors dark:border-dark-700"
                 :class="enableBreakdown ? 'cursor-pointer hover:bg-gray-50 dark:hover:bg-dark-700/40' : ''"
                 @click="enableBreakdown && toggleBreakdown(item.endpoint)"
               >
diff --git a/frontend/src/components/charts/GroupDistributionChart.vue b/frontend/src/components/charts/GroupDistributionChart.vue
index 41e536965..5f0c76d4c 100644
--- a/frontend/src/components/charts/GroupDistributionChart.vue
+++ b/frontend/src/components/charts/GroupDistributionChart.vue
@@ -6,7 +6,7 @@
       </h3>
       <div
         v-if="showMetricToggle"
-        class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-gray-700 dark:bg-dark-800"
+        class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-dark-700 dark:bg-dark-800"
       >
         <button
           type="button"
@@ -52,7 +52,7 @@
           <tbody>
             <template v-for="group in displayGroupStats" :key="group.group_id">
               <tr
-                class="border-t border-gray-100 transition-colors dark:border-gray-700"
+                class="border-t border-gray-100 transition-colors dark:border-dark-700"
                 :class="enableBreakdown && group.group_id > 0 ? 'cursor-pointer hover:bg-gray-50 dark:hover:bg-dark-700/40' : ''"
                 @click="enableBreakdown && group.group_id > 0 && toggleBreakdown('group', group.group_id)"
               >
diff --git a/frontend/src/components/charts/ModelDistributionChart.vue b/frontend/src/components/charts/ModelDistributionChart.vue
index d579512cc..48f46cba2 100644
--- a/frontend/src/components/charts/ModelDistributionChart.vue
+++ b/frontend/src/components/charts/ModelDistributionChart.vue
@@ -9,7 +9,7 @@
       <div class="flex flex-wrap items-center justify-end gap-2">
         <div
           v-if="showSourceToggle"
-          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-gray-700 dark:bg-dark-800"
+          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-dark-700 dark:bg-dark-800"
         >
           <button
             type="button"
@@ -44,7 +44,7 @@
         </div>
         <div
           v-if="showMetricToggle"
-          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-gray-700 dark:bg-dark-800"
+          class="inline-flex rounded-lg border border-gray-200 bg-gray-50 p-0.5 dark:border-dark-700 dark:bg-dark-800"
         >
           <button
             type="button"
@@ -121,7 +121,7 @@
           <tbody>
             <template v-for="model in displayModelStats" :key="model.model">
               <tr
-                class="border-t border-gray-100 transition-colors dark:border-gray-700"
+                class="border-t border-gray-100 transition-colors dark:border-dark-700"
                 :class="enableBreakdown ? 'cursor-pointer hover:bg-gray-50 dark:hover:bg-dark-700/40' : ''"
                 @click="enableBreakdown && toggleBreakdown('model', model.model)"
               >
@@ -200,7 +200,7 @@
             <tr
               v-for="(item, index) in rankingDisplayItems"
               :key="item.isOther ? 'others' : `${item.user_id}-${index}`"
-              class="border-t border-gray-100 transition-colors dark:border-gray-700"
+              class="border-t border-gray-100 transition-colors dark:border-dark-700"
               :class="item.isOther
                 ? 'bg-gray-50/70 dark:bg-dark-700/20'
                 : 'cursor-pointer hover:bg-gray-50 dark:hover:bg-dark-700/40'"
diff --git a/frontend/src/components/charts/UserBreakdownSubTable.vue b/frontend/src/components/charts/UserBreakdownSubTable.vue
index 9c41fa2c8..4b61c0897 100644
--- a/frontend/src/components/charts/UserBreakdownSubTable.vue
+++ b/frontend/src/components/charts/UserBreakdownSubTable.vue
@@ -11,7 +11,7 @@
         <tr
           v-for="user in items"
           :key="user.user_id"
-          class="border-t border-gray-100/50 dark:border-gray-700/50"
+          class="border-t border-gray-100/50 dark:border-dark-700/50"
         >
           <td class="max-w-[120px] truncate py-1 pl-6 text-gray-600 dark:text-gray-300" :title="user.email">
             {{ user.email || `User #${user.user_id}` }}
diff --git a/frontend/src/components/common/AutoRefreshButton.vue b/frontend/src/components/common/AutoRefreshButton.vue
index 797c8752d..e73b1cfa3 100644
--- a/frontend/src/components/common/AutoRefreshButton.vue
+++ b/frontend/src/components/common/AutoRefreshButton.vue
@@ -27,19 +27,19 @@
       <div class="p-1.5">
         <button
           @click="$emit('update:enabled', !enabled)"
-          class="flex w-full items-center justify-between rounded-md px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+          class="flex w-full items-center justify-between rounded-md px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
         >
           <span>{{ t('common.autoRefresh.enable') }}</span>
           <svg v-if="enabled" class="h-4 w-4 text-primary-500" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
             <path fill-rule="evenodd" d="M16.704 4.153a.75.75 0 01.143 1.052l-8 10.5a.75.75 0 01-1.127.075l-4.5-4.5a.75.75 0 011.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 011.05-.143z" clip-rule="evenodd" />
           </svg>
         </button>
-        <div class="my-1 border-t border-gray-100 dark:border-gray-700"></div>
+        <div class="my-1 border-t border-gray-100 dark:border-dark-700"></div>
         <button
           v-for="sec in intervals"
           :key="sec"
           @click="$emit('update:interval', sec)"
-          class="flex w-full items-center justify-between rounded-md px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+          class="flex w-full items-center justify-between rounded-md px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
         >
           <span>{{ t('common.autoRefresh.seconds', { n: sec }) }}</span>
           <svg v-if="intervalSeconds === sec" class="h-4 w-4 text-primary-500" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
diff --git a/frontend/src/components/user/dashboard/UserDashboardCharts.vue b/frontend/src/components/user/dashboard/UserDashboardCharts.vue
index 73e88c3b2..6816f2cd2 100644
--- a/frontend/src/components/user/dashboard/UserDashboardCharts.vue
+++ b/frontend/src/components/user/dashboard/UserDashboardCharts.vue
@@ -44,7 +44,7 @@
                 </tr>
               </thead>
               <tbody>
-                <tr v-for="model in models" :key="model.model" class="border-t border-gray-100 dark:border-gray-700">
+                <tr v-for="model in models" :key="model.model" class="border-t border-gray-100 dark:border-dark-700">
                   <td class="max-w-[100px] truncate py-1.5 font-medium text-gray-900 dark:text-white" :title="model.model">{{ model.model }}</td>
                   <td class="py-1.5 text-right text-gray-600 dark:text-gray-400">{{ formatNumber(model.requests) }}</td>
                   <td class="py-1.5 text-right text-gray-600 dark:text-gray-400">{{ formatTokens(model.total_tokens) }}</td>
diff --git a/frontend/src/views/admin/AccountsView.vue b/frontend/src/views/admin/AccountsView.vue
index e3bd2266f..0dbbdc987 100644
--- a/frontend/src/views/admin/AccountsView.vue
+++ b/frontend/src/views/admin/AccountsView.vue
@@ -38,22 +38,22 @@
                 </button>
                 <div
                   v-if="showAutoRefreshDropdown"
-                  class="absolute right-0 z-50 mt-2 w-56 origin-top-right rounded-lg border border-gray-200 bg-white shadow-lg dark:border-gray-700 dark:bg-gray-800"
+                  class="absolute right-0 z-50 mt-2 w-56 origin-top-right rounded-lg border border-gray-200 bg-white shadow-lg dark:border-dark-700 dark:bg-dark-800"
                 >
                   <div class="p-2">
                     <button
                       @click="setAutoRefreshEnabled(!autoRefreshEnabled)"
-                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
                     >
                       <span>{{ t('admin.accounts.enableAutoRefresh') }}</span>
                       <Icon v-if="autoRefreshEnabled" name="check" size="sm" class="text-primary-500" />
                     </button>
-                    <div class="my-1 border-t border-gray-100 dark:border-gray-700"></div>
+                    <div class="my-1 border-t border-gray-100 dark:border-dark-700"></div>
                     <button
                       v-for="sec in autoRefreshIntervals"
                       :key="sec"
                       @click="setAutoRefreshInterval(sec)"
-                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
                     >
                       <span>{{ autoRefreshIntervalLabel(sec) }}</span>
                       <Icon v-if="autoRefreshIntervalSeconds === sec" name="check" size="sm" class="text-primary-500" />
@@ -78,7 +78,7 @@
                 </button>
                 <div
                   v-if="showAccountToolsDropdown"
-                  class="absolute right-0 z-50 mt-2 w-[min(20rem,calc(100vw-2rem))] origin-top-right overflow-hidden rounded-lg border border-gray-200 bg-white shadow-xl dark:border-gray-700 dark:bg-gray-800"
+                  class="absolute right-0 z-50 mt-2 w-[min(20rem,calc(100vw-2rem))] origin-top-right overflow-hidden rounded-lg border border-gray-200 bg-white shadow-xl dark:border-dark-700 dark:bg-dark-800"
                 >
                   <div class="max-h-[70vh] overflow-y-auto p-2">
                     <div class="px-2 py-2">
@@ -113,7 +113,7 @@
                       </span>
                     </button>
 
-                    <div class="my-2 border-t border-gray-100 dark:border-gray-700"></div>
+                    <div class="my-2 border-t border-gray-100 dark:border-dark-700"></div>
                     <div class="px-2 py-2">
                       <div class="text-xs font-semibold uppercase tracking-wide text-gray-400 dark:text-gray-500">
                         {{ t('admin.accounts.toolActions') }}
@@ -132,7 +132,7 @@
                       <span class="flex-1 text-left">{{ t('admin.tlsFingerprintProfiles.title') }}</span>
                     </button>
 
-                    <div class="my-2 border-t border-gray-100 dark:border-gray-700"></div>
+                    <div class="my-2 border-t border-gray-100 dark:border-dark-700"></div>
                     <div class="px-2 py-2">
                       <div class="flex items-center justify-between gap-3">
                         <span class="text-xs font-semibold uppercase tracking-wide text-gray-400 dark:text-gray-500">
@@ -146,7 +146,7 @@
                         v-for="col in toggleableColumns"
                         :key="col.key"
                         @click="toggleColumn(col.key)"
-                        class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 transition-colors hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+                        class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 transition-colors hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
                       >
                         <span class="truncate">{{ col.label }}</span>
                         <Icon v-if="isColumnVisible(col.key)" name="check" size="sm" class="text-primary-500" />
@@ -228,7 +228,7 @@
                     :href="accountHomepageUrl(row)"
                     target="_blank"
                     rel="noopener noreferrer"
-                    class="border-b border-dotted border-gray-300 font-medium text-gray-900 dark:border-gray-600 dark:text-white"
+                    class="border-b border-dotted border-gray-300 font-medium text-gray-900 dark:border-dark-600 dark:text-white"
                   >
                     {{ value }}
                   </a>
@@ -330,7 +330,7 @@
                 <span class="inline-flex items-center px-1.5 py-0.5 rounded text-xs font-medium bg-yellow-100 text-yellow-800 dark:bg-yellow-900 dark:text-yellow-200" :title="t('admin.accounts.fallbackActiveTip', { origin: row.proxy_fallback_origin_name })">
                   {{ t('admin.accounts.fallbackActive') }}
                 </span>
-                <button class="text-xs px-1.5 py-0.5 rounded border border-gray-300 dark:border-gray-600 text-gray-600 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700" @click="onRevertFallback(row)">{{ t('admin.accounts.revertProxy') }}</button>
+                <button class="text-xs px-1.5 py-0.5 rounded border border-gray-300 dark:border-dark-600 text-gray-600 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-dark-700" @click="onRevertFallback(row)">{{ t('admin.accounts.revertProxy') }}</button>
               </div>
             </div>
           </template>
@@ -1348,7 +1348,7 @@ function getOpenAICompactTitle(row: any): string {
 function getAntigravityTierClass(row: any): string {
   const tier = getAntigravityTierFromRow(row)
   switch (tier) {
-    case 'free-tier': return 'bg-gray-100 text-gray-600 dark:bg-gray-700 dark:text-gray-300'
+    case 'free-tier': return 'bg-gray-100 text-gray-600 dark:bg-dark-700 dark:text-gray-300'
     case 'g1-pro-tier': return 'bg-blue-100 text-blue-600 dark:bg-blue-900/40 dark:text-blue-300'
     case 'g1-ultra-tier': return 'bg-purple-100 text-purple-600 dark:bg-purple-900/40 dark:text-purple-300'
     default: return ''
@@ -2078,7 +2078,7 @@ onUnmounted(() => {
 
 <style scoped>
 .account-tools-menu-item {
-  @apply flex w-full items-center gap-3 rounded-md px-3 py-2 text-sm text-gray-700 transition-colors hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700;
+  @apply flex w-full items-center gap-3 rounded-md px-3 py-2 text-sm text-gray-700 transition-colors hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700;
 }
 
 .account-tools-menu-icon {
diff --git a/frontend/src/views/admin/SubscriptionsView.vue b/frontend/src/views/admin/SubscriptionsView.vue
index 85ae5f0a8..ff44e52a2 100644
--- a/frontend/src/views/admin/SubscriptionsView.vue
+++ b/frontend/src/views/admin/SubscriptionsView.vue
@@ -37,7 +37,7 @@
               <!-- User Dropdown -->
               <div
                 v-if="showFilterUserDropdown && (filterUserResults.length > 0 || filterUserKeyword)"
-                class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border border-gray-200 bg-white shadow-lg dark:border-gray-700 dark:bg-gray-800"
+                class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border border-gray-200 bg-white shadow-lg dark:border-dark-700 dark:bg-dark-800"
               >
                 <div
                   v-if="filterUserLoading"
@@ -56,7 +56,7 @@
                   :key="user.id"
                   type="button"
                   @click="selectFilterUser(user)"
-                  class="w-full px-4 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-gray-700"
+                  class="w-full px-4 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-dark-700"
                 >
                   <span class="font-medium text-gray-900 dark:text-white">{{ user.email }}</span>
                   <span class="ml-2 text-gray-500 dark:text-gray-400">#{{ user.id }}</span>
@@ -116,24 +116,24 @@
               <!-- Dropdown menu -->
               <div
                 v-if="showColumnDropdown"
-                class="absolute right-0 z-50 mt-2 w-48 origin-top-right rounded-lg border border-gray-200 bg-white shadow-lg dark:border-gray-700 dark:bg-gray-800"
+                class="absolute right-0 z-50 mt-2 w-48 origin-top-right rounded-lg border border-gray-200 bg-white shadow-lg dark:border-dark-700 dark:bg-dark-800"
               >
                 <div class="p-2">
                   <!-- User column mode selection -->
-                  <div class="mb-2 border-b border-gray-200 pb-2 dark:border-gray-700">
+                  <div class="mb-2 border-b border-gray-200 pb-2 dark:border-dark-700">
                     <div class="px-3 py-1 text-xs font-medium text-gray-500 dark:text-gray-400">
                       {{ t('admin.subscriptions.columns.user') }}
                     </div>
                     <button
                       @click="setUserColumnMode('email')"
-                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
                     >
                       <span>{{ t('admin.users.columns.email') }}</span>
                       <Icon v-if="userColumnMode === 'email'" name="check" size="sm" class="text-primary-500" />
                     </button>
                     <button
                       @click="setUserColumnMode('username')"
-                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+                      class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
                     >
                       <span>{{ t('admin.users.columns.username') }}</span>
                       <Icon v-if="userColumnMode === 'username'" name="check" size="sm" class="text-primary-500" />
@@ -144,7 +144,7 @@
                     v-for="col in toggleableColumns"
                     :key="col.key"
                     @click="toggleColumn(col.key)"
-                    class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-gray-700"
+                    class="flex w-full items-center justify-between rounded-md px-3 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-200 dark:hover:bg-dark-700"
                   >
                     <span>{{ col.label }}</span>
                     <Icon v-if="isColumnVisible(col.key)" name="check" size="sm" class="text-primary-500" />
@@ -473,7 +473,7 @@
             <!-- User Dropdown -->
             <div
               v-if="showUserDropdown && (userSearchResults.length > 0 || userSearchKeyword)"
-              class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border border-gray-200 bg-white shadow-lg dark:border-gray-700 dark:bg-gray-800"
+              class="absolute z-50 mt-1 max-h-60 w-full overflow-auto rounded-lg border border-gray-200 bg-white shadow-lg dark:border-dark-700 dark:bg-dark-800"
             >
               <div
                 v-if="userSearchLoading"
@@ -492,7 +492,7 @@
                 :key="user.id"
                 type="button"
                 @click="selectUser(user)"
-                class="w-full px-4 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-gray-700"
+                class="w-full px-4 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-dark-700"
               >
                 <span class="font-medium text-gray-900 dark:text-white">{{ user.email }}</span>
                 <span class="ml-2 text-gray-500 dark:text-gray-400">#{{ user.id }}</span>
diff --git a/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue b/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue
index ab95cd306..8e5c9e837 100644
--- a/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue
+++ b/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue
@@ -1004,8 +1004,8 @@ function handleToolbarRefresh() {
             <div
               class="pointer-events-none absolute left-1/2 top-full z-50 mt-2 w-72 -translate-x-1/2 opacity-0 transition-opacity duration-200 group-hover:pointer-events-auto group-hover:opacity-100 md:left-full md:top-0 md:ml-2 md:mt-0 md:translate-x-0"
             >
-              <div class="rounded-xl bg-white p-4 shadow-xl ring-1 ring-black/5 dark:bg-gray-800 dark:ring-white/10">
-                <h4 class="mb-3 border-b border-gray-100 pb-2 text-sm font-bold text-gray-900 dark:border-gray-700 dark:text-white flex items-center gap-2">
+              <div class="rounded-xl bg-white p-4 shadow-xl ring-1 ring-black/5 dark:bg-dark-800 dark:ring-white/10">
+                <h4 class="mb-3 border-b border-gray-100 pb-2 text-sm font-bold text-gray-900 dark:border-dark-700 dark:text-white flex items-center gap-2">
                   <Icon name="brain" size="sm" class="text-blue-500" />
                   {{ t('admin.ops.diagnosis.title') }}
                 </h4>
@@ -1046,7 +1046,7 @@ function handleToolbarRefresh() {
                   </div>
                 </div>
 
-                <div class="mt-3 border-t border-gray-100 pt-2 text-[10px] text-gray-400 dark:border-gray-700">
+                <div class="mt-3 border-t border-gray-100 pt-2 text-[10px] text-gray-400 dark:border-dark-700">
                   {{ t('admin.ops.diagnosis.footer') }}
                 </div>
               </div>