diff --git a/.github/workflows/chore-lock-closed-issues-discussions-and-prs.yml b/.github/workflows/chore-lock-closed-issues-discussions-and-prs.yml
index 365842254..6fd8212e6 100644
--- a/.github/workflows/chore-lock-closed-issues-discussions-and-prs.yml
+++ b/.github/workflows/chore-lock-closed-issues-discussions-and-prs.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Lock threads after 30 days of inactivity
-        uses: dessant/lock-threads@v5
+        uses: dessant/lock-threads@89ae32b08ed1a541efecbab17912962a5e38981c # v6.0.2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           issue-inactive-days: '30'
diff --git a/resources/css/utilities.css b/resources/css/utilities.css
index 668cb755b..0dcd16e64 100644
--- a/resources/css/utilities.css
+++ b/resources/css/utilities.css
@@ -1,5 +1,5 @@
 @utility apexcharts-tooltip {
-    @apply dark:text-white! dark:border-coolgray-300! dark:bg-coolgray-200! shadow-none!;
+    @apply overflow-visible! rounded-none! border-0! bg-transparent! shadow-none! dark:text-white!;
 }
 
 @utility apexcharts-tooltip-title {
diff --git a/resources/views/components/applications/links.blade.php b/resources/views/components/applications/links.blade.php
index fa9a88119..2c183e254 100644
--- a/resources/views/components/applications/links.blade.php
+++ b/resources/views/components/applications/links.blade.php
@@ -13,7 +13,8 @@
     $linkItemClasses = 'listbox-option justify-start! gap-2.5!';
 @endphp
 
-<div @class(['relative', 'w-full' => $fullWidth]) x-data="{ open: false }" @keydown.escape.window="open = false">
+<div @class(['relative', 'w-full' => $fullWidth]) x-data="{ open: false }"
+    x-effect="$dispatch('resource-actions-toggled', { open })" @keydown.escape.window="open = false">
     <button type="button" @click="open = !open" @click.outside="open = false" title="Open application links"
         @class([
             'app-tab shrink-0 gap-1' => !$fullWidth,
diff --git a/resources/views/components/configuration-warning.blade.php b/resources/views/components/configuration-warning.blade.php
new file mode 100644
index 000000000..11f2f86a5
--- /dev/null
+++ b/resources/views/components/configuration-warning.blade.php
@@ -0,0 +1,41 @@
+@props(['diff' => []])
+
+<div class="relative" x-data="{ open: false }" @click.outside="open = false" @keydown.escape.window="open = false">
+    <button type="button" aria-label="Configuration changes not applied" aria-haspopup="dialog"
+        :aria-expanded="open" @click="open = !open"
+        class="flex h-8 items-center justify-center gap-1.5 rounded-lg px-2 text-amber-700 transition-colors hover:bg-amber-100 dark:text-warning dark:hover:bg-warning/10">
+        <x-reicon name="alert-triangle" class="size-4" />
+        <span class="hidden text-xs font-medium lg:inline">Changes pending</span>
+    </button>
+
+    <div x-show="open" x-cloak x-transition.opacity role="dialog"
+        class="fixed top-14 left-1/2 z-[1100] w-[calc(100vw-2rem)] max-w-sm -translate-x-1/2 rounded-lg p-3 lg:absolute lg:top-full lg:right-0 lg:left-auto lg:mt-2 lg:translate-x-0"
+        style="background: var(--coollabs-elevated); box-shadow: 0 0 0 1px var(--coollabs-line), var(--shadow-modal);">
+        <div class="flex items-start gap-2.5">
+            <span
+                class="flex size-7 shrink-0 items-center justify-center rounded-md bg-amber-100 text-amber-700 dark:bg-warning/10 dark:text-warning">
+                <x-reicon name="alert-triangle" class="size-4" />
+            </span>
+            <div class="min-w-0 flex-1">
+                <p class="text-[13px] font-semibold leading-4 text-neutral-950 dark:text-fg">
+                    The latest configuration has not been applied
+                </p>
+                <p class="mt-0.5 text-[11px] leading-4 text-neutral-600 dark:text-fg-dim">
+                    @if (data_get($diff, 'count'))
+                        {{ data_get($diff, 'count') }}
+                        {{ data_get($diff, 'count') === 1 ? 'change' : 'changes' }} unapplied.
+                        {{ data_get($diff, 'requires_build') ? 'Rebuild required.' : 'Redeploy to apply.' }}
+                        <button type="button"
+                            class="ml-0.5 inline-flex items-center gap-0.5 font-semibold text-coollabs transition-colors hover:text-coollabs-100 dark:text-warning dark:hover:text-warning/80"
+                            @click="open = false; $dispatch('open-configuration-diff')">
+                            View changes
+                            <x-reicon name="arrow-right" class="size-2.5" />
+                        </button>
+                    @else
+                        Redeploy to apply.
+                    @endif
+                </p>
+            </div>
+        </div>
+    </div>
+</div>
diff --git a/resources/views/components/popup-small.blade.php b/resources/views/components/popup-small.blade.php
index 45f12eb6e..eec0c46c2 100644
--- a/resources/views/components/popup-small.blade.php
+++ b/resources/views/components/popup-small.blade.php
@@ -67,7 +67,7 @@ class="flex size-7 shrink-0 items-center justify-center rounded-md bg-amber-100
     <template x-if="!iconOnly">
     <div class="relative flex items-start gap-2.5 rounded-lg p-3 pr-10"
         :class="compact
-            ? 'w-[calc(100vw-2rem)] cursor-pointer sm:w-auto sm:max-w-[calc(100vw-2rem)]'
+            ? 'w-[calc(100vw-2rem)] max-w-sm cursor-pointer'
             : 'w-[calc(100vw-2rem)] max-w-sm'"
         @click="restore()"
         style="background: var(--coollabs-elevated); box-shadow: 0 0 0 1px var(--coollabs-line), var(--shadow-modal);">
diff --git a/resources/views/components/services/links.blade.php b/resources/views/components/services/links.blade.php
index 60e79247b..5d7884628 100644
--- a/resources/views/components/services/links.blade.php
+++ b/resources/views/components/services/links.blade.php
@@ -2,7 +2,8 @@
     $linkItemClasses = 'listbox-option justify-start! gap-2.5!';
 @endphp
 
-<div @class(['relative', 'w-full' => $fullWidth]) x-data="{ open: false }" @keydown.escape.window="open = false">
+<div @class(['relative', 'w-full' => $fullWidth]) x-data="{ open: false }"
+    x-effect="$dispatch('resource-actions-toggled', { open })" @keydown.escape.window="open = false">
     <button type="button" @click="open = !open" @click.outside="open = false" title="Open service links"
         @class([
             'app-tab shrink-0 gap-1' => !$fullWidth,
diff --git a/resources/views/layouts/app.blade.php b/resources/views/layouts/app.blade.php
index 43f5dff42..a0f40e0b5 100644
--- a/resources/views/layouts/app.blade.php
+++ b/resources/views/layouts/app.blade.php
@@ -60,13 +60,14 @@ class="!text-[10.5px] font-medium text-neutral-400 dark:text-fg-faint !opacity-1
                     </div>
                     {{-- Dev Server-Timing HUD docks here (local only; empty in production) --}}
                     <div id="server-timing-hud-slot" data-server-timing-hud-slot class="hidden shrink-0 items-center"></div>
+                    <div id="configuration-warning-hud-slot" class="relative shrink-0"></div>
                     {{-- Resource actions dock here on desktop. --}}
                     <div id="resource-action-hud-slot" class="hidden shrink-0 items-center xl:flex"></div>
                 </div>
             </header>
 
             {{-- ============ MOBILE SLIDE-OVER SIDEBAR ============ --}}
-            <div class="relative z-50 lg:hidden" :class="open ? 'block' : 'hidden'" role="dialog" aria-modal="true">
+            <div class="relative z-[1000] lg:hidden" :class="open ? 'block' : 'hidden'" role="dialog" aria-modal="true">
                 <div class="fixed inset-0 bg-black/80" x-on:click="open = false"></div>
                 <div class="fixed inset-y-0 right-0 flex h-full">
                     <div
@@ -111,6 +112,7 @@ class="flex size-8 shrink-0 items-center justify-center rounded-lg bg-neutral-10
                     {{-- Dev Server-Timing HUD docks here on <lg (desktop uses #server-timing-hud-slot) --}}
                     <div id="server-timing-hud-slot-mobile" data-server-timing-hud-slot
                         class="hidden shrink-0 items-center"></div>
+                    <div id="configuration-warning-hud-slot-mobile" class="relative shrink-0"></div>
                     <x-top-user-menu />
                     <button type="button" class="-m-1 p-2 text-neutral-500 dark:text-fg-dim" x-on:click="open = !open">
                         <span class="sr-only">Open sidebar</span>
diff --git a/resources/views/livewire/project/application/heading.blade.php b/resources/views/livewire/project/application/heading.blade.php
index 8b7f43c0d..9f581c521 100644
--- a/resources/views/livewire/project/application/heading.blade.php
+++ b/resources/views/livewire/project/application/heading.blade.php
@@ -187,6 +187,7 @@ class="resource-heading-navbar application-heading-actions flex w-full min-w-0 i
                             <x-applications.links :application="$application" />
                         </div>
                         <div id="application-desktop-actions" class="relative" x-data="{ open: false }"
+                            x-effect="$dispatch('resource-actions-toggled', { open })"
                             @click.outside="open = false" @keydown.escape.window="open = false">
                             <button type="button" class="button" @click="open = !open" :aria-expanded="open"
                                 aria-haspopup="menu">
diff --git a/resources/views/livewire/project/database/heading.blade.php b/resources/views/livewire/project/database/heading.blade.php
index 2879e6543..8de9bfa53 100644
--- a/resources/views/livewire/project/database/heading.blade.php
+++ b/resources/views/livewire/project/database/heading.blade.php
@@ -140,6 +140,7 @@ class="resource-heading-navbar application-heading-actions flex w-auto min-w-0 i
                     @if ($database->destination->server->isFunctional())
                         @if (! $databaseStatus->startsWith('exited'))
                             <div id="database-desktop-actions" class="relative" x-data="{ open: false }"
+                                x-effect="$dispatch('resource-actions-toggled', { open })"
                                 @click.outside="open = false" @keydown.escape.window="open = false">
                                 <button type="button" class="button" @click="open = !open" :aria-expanded="open">
                                     <x-reicon name="play-circle" class="size-3.5 text-warning" />
diff --git a/resources/views/livewire/project/shared/configuration-checker.blade.php b/resources/views/livewire/project/shared/configuration-checker.blade.php
index e6cb6b579..17bedcb8f 100644
--- a/resources/views/livewire/project/shared/configuration-checker.blade.php
+++ b/resources/views/livewire/project/shared/configuration-checker.blade.php
@@ -29,45 +29,24 @@ class="ml-0.5 inline-flex items-center gap-0.5 font-semibold text-coollabs trans
 
     @if ($isConfigurationChanged && !is_null($resource->config_hash) && !$resource->isExited())
         @php
-            $compactStoragePrefix = "configuration-warning:{$resource->uuid}:";
             $currentConfigurationHash = $resource instanceof \App\Models\Application
                 ? $resource->deploymentConfigurationHash()
                 : md5((string) $resource->config_hash);
-            $compactStorageKey = $compactStoragePrefix.$currentConfigurationHash;
         @endphp
         <div wire:key="configuration-warning-{{ $currentConfigurationHash }}"
-            x-data="{ configurationDiffModalOpen: false, expandedRows: {} }">
-            <x-popup-small position="top-right" :compact-after="5000" :compact-storage-key="$compactStorageKey"
-                :compact-storage-prefix="$compactStoragePrefix">
-                <x-slot:title>
-                    The latest configuration has not been applied
-                </x-slot:title>
-                <x-slot:icon>
-                    <x-reicon name="alert-triangle" class="size-4" />
-                </x-slot:icon>
-                <x-slot:description>
-                    <span>
-                        @if (data_get($configurationDiff, 'count'))
-                            {{ data_get($configurationDiff, 'count') }}
-                            {{ data_get($configurationDiff, 'count') === 1 ? 'change' : 'changes' }}
-                            unapplied.
-                            @if (data_get($configurationDiff, 'requires_build'))
-                                Rebuild required.
-                            @else
-                                Redeploy to apply.
-                            @endif
-                            <button type="button"
-                                class="ml-0.5 inline-flex items-center gap-0.5 font-semibold text-coollabs transition-colors hover:text-coollabs-100 dark:text-warning dark:hover:text-warning/80"
-                                x-on:click="configurationDiffModalOpen = true">
-                                View changes
-                                <x-reicon name="arrow-right" class="size-2.5" />
-                            </button>
-                        @else
-                            Redeploy to apply.
-                        @endif
-                    </span>
-                </x-slot:description>
-            </x-popup-small>
+            x-data="{ configurationDiffModalOpen: false, expandedRows: {} }"
+            @open-configuration-diff.window="configurationDiffModalOpen = true">
+            @teleport('#configuration-warning-hud-slot')
+                <div>
+                    <x-configuration-warning :diff="$configurationDiff" />
+                </div>
+            @endteleport
+
+            @teleport('#configuration-warning-hud-slot-mobile')
+                <div>
+                    <x-configuration-warning :diff="$configurationDiff" />
+                </div>
+            @endteleport
 
             @if (data_get($configurationDiff, 'count'))
                 <template x-teleport="body">
diff --git a/resources/views/livewire/server/navbar.blade.php b/resources/views/livewire/server/navbar.blade.php
index c7125156c..4923de0b4 100644
--- a/resources/views/livewire/server/navbar.blade.php
+++ b/resources/views/livewire/server/navbar.blade.php
@@ -287,7 +287,8 @@ class="size-3.5 text-orange-500 dark:text-warning" />
                 @if ($server->proxySet())
                     @can('manageProxy', $server)
                         <div id="server-desktop-actions" class="resource-heading-actions relative shrink-0"
-                            x-data="{ open: false }" @click.outside="open = false"
+                            x-data="{ open: false }" x-effect="$dispatch('resource-actions-toggled', { open })"
+                            @click.outside="open = false"
                             @keydown.escape.window="open = false">
                             <button type="button" class="button" @click="open = !open" :aria-expanded="open"
                                 aria-haspopup="menu" wire:loading.attr="disabled" wire:loading.class="is-loading"
diff --git a/tests/Feature/Livewire/ConfigurationCheckerTest.php b/tests/Feature/Livewire/ConfigurationCheckerTest.php
index 41c2aa138..ff1400847 100644
--- a/tests/Feature/Livewire/ConfigurationCheckerTest.php
+++ b/tests/Feature/Livewire/ConfigurationCheckerTest.php
@@ -102,7 +102,7 @@ function markConfigurationCheckerApplicationDeployed(Application $application):
         ->not->toContain('<div x-show="!iconOnly"')
         ->not->toContain(':class="iconOnly')
         ->toContain('x-show="!compact"')
-        ->toContain("'w-[calc(100vw-2rem)] cursor-pointer sm:w-auto sm:max-w-[calc(100vw-2rem)]'");
+        ->toContain("'w-[calc(100vw-2rem)] max-w-sm cursor-pointer'");
 });
 
 it('warns when a service has missing required environment variables', function () {
diff --git a/tests/Feature/MetricsTooltipStylingTest.php b/tests/Feature/MetricsTooltipStylingTest.php
new file mode 100644
index 000000000..f748487e5
--- /dev/null
+++ b/tests/Feature/MetricsTooltipStylingTest.php
@@ -0,0 +1,31 @@
+<?php
+
+test('apexcharts delegates tooltip chrome to the custom content', function () {
+    $utilities = file_get_contents(resource_path('css/utilities.css'));
+
+    preg_match('/@utility apexcharts-tooltip \{[^}]*\}/s', $utilities, $tooltip);
+    preg_match('/@utility apexcharts-tooltip-custom \{[^}]*\}/s', $utilities, $customTooltip);
+
+    expect($tooltip[0] ?? '')
+        ->toContain('overflow-visible!')
+        ->toContain('rounded-none!')
+        ->toContain('border-0!')
+        ->toContain('bg-transparent!')
+        ->toContain('shadow-none!')
+        ->not->toContain('dark:border-coolgray-300!')
+        ->not->toContain('dark:bg-coolgray-200!')
+        ->and($customTooltip[0] ?? '')
+        ->toContain('border-neutral-200')
+        ->toContain('dark:border-coolgray-300')
+        ->toContain('rounded-lg')
+        ->toContain('shadow-lg');
+});
+
+test('metrics charts render custom tooltip content', function (string $view) {
+    expect(file_get_contents(resource_path($view)))
+        ->toContain('apexcharts-tooltip-custom');
+})->with([
+    'dashboard server metrics' => 'views/livewire/dashboard/server-metrics-chart.blade.php',
+    'server metrics' => 'views/livewire/server/charts.blade.php',
+    'resource metrics' => 'views/livewire/project/shared/metrics.blade.php',
+]);
diff --git a/tests/Feature/ResourceHeadingUnifiedNavbarTest.php b/tests/Feature/ResourceHeadingUnifiedNavbarTest.php
index d13135bb6..3b2ffab44 100644
--- a/tests/Feature/ResourceHeadingUnifiedNavbarTest.php
+++ b/tests/Feature/ResourceHeadingUnifiedNavbarTest.php
@@ -156,16 +156,26 @@
         ->toContain('Deploy');
 });
 
-it('raises the desktop top bar while the service actions dropdown is open', function () {
+it('raises the desktop top bar while any resource dropdown is open', function () {
     $layout = file_get_contents(resource_path('views/layouts/app.blade.php'));
-    $heading = file_get_contents(resource_path('views/livewire/project/service/heading.blade.php'));
+    $dropdowns = [
+        resource_path('views/livewire/project/application/heading.blade.php'),
+        resource_path('views/livewire/project/database/heading.blade.php'),
+        resource_path('views/livewire/project/service/heading.blade.php'),
+        resource_path('views/livewire/server/navbar.blade.php'),
+        resource_path('views/components/applications/links.blade.php'),
+        resource_path('views/components/services/links.blade.php'),
+    ];
 
     expect($layout)
         ->toContain('resourceActionsOpen: false')
         ->toContain("'z-[1000]': resourceActionsOpen")
-        ->toContain('@resource-actions-toggled.window="resourceActionsOpen = $event.detail.open"')
-        ->and($heading)
-        ->toContain("\$dispatch('resource-actions-toggled', { open })");
+        ->toContain('@resource-actions-toggled.window="resourceActionsOpen = $event.detail.open"');
+
+    foreach ($dropdowns as $dropdown) {
+        expect(file_get_contents($dropdown))
+            ->toContain("\$dispatch('resource-actions-toggled', { open })");
+    }
 });
 
 it('keeps deploy in the actions menu alongside advanced operations', function () {
@@ -179,6 +189,28 @@
         ->toContain('Force deploy without cache');
 });
 
+it('renders configuration warnings as navbar popovers instead of floating notifications', function () {
+    $checker = file_get_contents(resource_path('views/livewire/project/shared/configuration-checker.blade.php'));
+    $warning = file_get_contents(resource_path('views/components/configuration-warning.blade.php'));
+
+    expect($checker)
+        ->toContain("@teleport('#configuration-warning-hud-slot')")
+        ->toContain("@teleport('#configuration-warning-hud-slot-mobile')")
+        ->toContain('<x-configuration-warning :diff="$configurationDiff" />')
+        ->not->toContain('<x-popup-small position="top-right"')
+        ->and($warning)
+        ->toContain('aria-label="Configuration changes not applied"')
+        ->toContain('<span class="hidden text-xs font-medium lg:inline">Changes pending</span>')
+        ->toContain('The latest configuration has not been applied')
+        ->toContain('fixed top-14 left-1/2')
+        ->toContain('-translate-x-1/2')
+        ->toContain('lg:absolute lg:top-full lg:right-0 lg:left-auto')
+        ->toContain('lg:translate-x-0')
+        ->toContain('@click.outside="open = false"')
+        ->toContain('@keydown.escape.window="open = false"')
+        ->toContain("\$dispatch('open-configuration-diff')");
+});
+
 it('moves application backups from the top tabs into the settings sidebar', function () {
     $heading = file_get_contents(resource_path('views/livewire/project/application/heading.blade.php'));
     $configuration = file_get_contents(resource_path('views/livewire/project/application/configuration.blade.php'));
diff --git a/tests/Feature/SidebarNavigationMarkupTest.php b/tests/Feature/SidebarNavigationMarkupTest.php
index 2e07f06f2..ad5f37fc7 100644
--- a/tests/Feature/SidebarNavigationMarkupTest.php
+++ b/tests/Feature/SidebarNavigationMarkupTest.php
@@ -63,6 +63,32 @@
     expect($layout)->toContain('max-w-56 min-w-0 flex-col border-l border-neutral-200 bg-white shadow-xl dark:border-white/[0.12] dark:bg-panel');
 });
 
+it('keeps the mobile navbar above floating configuration warnings', function () {
+    $layout = file_get_contents(resource_path('views/layouts/app.blade.php'));
+    $popup = file_get_contents(resource_path('views/components/popup-small.blade.php'));
+
+    expect($layout)
+        ->toContain('class="relative z-[1000] lg:hidden"')
+        ->and($popup)->toContain('z-999');
+});
+
+it('keeps compact configuration warnings the same width as their expanded state', function () {
+    $popup = file_get_contents(resource_path('views/components/popup-small.blade.php'));
+
+    expect($popup)
+        ->toContain("? 'w-[calc(100vw-2rem)] max-w-sm cursor-pointer'")
+        ->toContain(": 'w-[calc(100vw-2rem)] max-w-sm'")
+        ->not->toContain('sm:w-auto');
+});
+
+it('provides configuration warning slots in both desktop and mobile navbars', function () {
+    $layout = file_get_contents(resource_path('views/layouts/app.blade.php'));
+
+    expect($layout)
+        ->toContain('id="configuration-warning-hud-slot"')
+        ->toContain('id="configuration-warning-hud-slot-mobile"');
+});
+
 it('shows the full team name in the header', function () {
     $layout = file_get_contents(resource_path('views/layouts/app.blade.php'));
     $switcher = file_get_contents(resource_path('views/livewire/switch-team.blade.php'));