diff --git a/resources/js/components/settings/UsersTab.vue b/resources/js/components/settings/UsersTab.vue
index f1d7f385..c53fa875 100644
--- a/resources/js/components/settings/UsersTab.vue
+++ b/resources/js/components/settings/UsersTab.vue
@@ -83,7 +83,7 @@ const changeRole = (member: Member, role: string) => {
 
 <template>
     <div class="flex flex-col space-y-6">
-        <div class="flex items-center justify-between gap-4">
+        <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
             <HeadingSmall
                 :title="$t('settings.workspace.members_heading')"
                 :description="$t('settings.workspace.members_description')"
@@ -115,7 +115,7 @@ const changeRole = (member: Member, role: string) => {
                     <TableCell>
                         <DropdownMenu v-if="canManageTeam && member.id !== currentUserId">
                             <DropdownMenuTrigger as-child>
-                                <Button variant="outline" size="icon" class="size-8">
+                                <Button variant="outline" size="icon" class="size-9">
                                     <IconDots class="size-4" />
                                 </Button>
                             </DropdownMenuTrigger>
diff --git a/resources/js/pages/automations/Metrics.vue b/resources/js/pages/automations/Metrics.vue
index 386c0812..cafcfbd7 100644
--- a/resources/js/pages/automations/Metrics.vue
+++ b/resources/js/pages/automations/Metrics.vue
@@ -72,7 +72,7 @@ const platformLabel = (platform: string): string => platform.charAt(0).toUpperCa
 <template>
     <AutomationDetailLayout :automation="automation" current="metrics">
         <div class="space-y-6 p-4">
-            <div class="flex items-center justify-between gap-2">
+            <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
                 <h2 class="text-sm font-semibold text-foreground/70">{{ $t('automations.metrics.overview') }}</h2>
                 <DateRangePicker v-model="dateRange" dusk="metrics-range" />
             </div>
@@ -85,9 +85,9 @@ const platformLabel = (platform: string): string => platform.charAt(0).toUpperCa
             </div>
 
             <div class="rounded-xl border-2 border-foreground/10 bg-card p-4">
-                <div class="mb-3 flex items-center justify-between">
+                <div class="mb-3 flex flex-wrap items-center justify-between gap-2">
                     <h3 class="text-sm font-semibold">{{ $t('automations.metrics.runs_over_time') }}</h3>
-                    <div class="flex items-center gap-4">
+                    <div class="flex flex-wrap items-center gap-4">
                         <div v-for="item in legend" :key="item.key" class="flex items-center gap-1.5">
                             <span class="size-2.5 rounded-full" :style="{ backgroundColor: item.color }"></span>
                             <span class="text-xs text-foreground/60">{{ $t(item.label) }}</span>
diff --git a/resources/js/pages/labels/Index.vue b/resources/js/pages/labels/Index.vue
index 23e09aea..f5c1e7f7 100644
--- a/resources/js/pages/labels/Index.vue
+++ b/resources/js/pages/labels/Index.vue
@@ -85,13 +85,13 @@ const hasActiveSearch = computed(() => Boolean(searchQuery.value?.trim()));
         <div class="flex h-full flex-1 flex-col gap-6 px-6 py-8">
             <PageHeader :title="$t('labels.title')" :description="$t('labels.description')" />
 
-            <div class="flex items-center justify-between gap-3">
-                <div class="relative">
+            <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+                <div class="relative w-full sm:w-auto">
                     <IconSearch class="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-muted-foreground" />
                     <Input
                         v-model="searchQuery"
                         :placeholder="trans('labels.search')"
-                        class="w-64 pl-9"
+                        class="w-full pl-9 sm:w-64"
                     />
                 </div>
 
diff --git a/resources/js/pages/posts/Calendar.vue b/resources/js/pages/posts/Calendar.vue
index 4e2c04e6..6f717943 100644
--- a/resources/js/pages/posts/Calendar.vue
+++ b/resources/js/pages/posts/Calendar.vue
@@ -52,8 +52,9 @@ interface Props {
 
 const props = defineProps<Props>();
 
-// Mobile detection
-const isMobile = ref(false);
+// Mobile detection — seed from the viewport at setup (available on client render
+// and SPA navigations) so a narrow screen never paints the month grid for a frame.
+const isMobile = ref(typeof window !== 'undefined' ? window.innerWidth < 1024 : false);
 const { canCreatePost } = useWorkspaceRole();
 
 const createPostUrl = (isoDate: string | null = null) =>
@@ -253,7 +254,7 @@ const formatTime = (scheduledAt: string): string => {
 
     <AppLayout :fullWidth="true">
         <div class="flex flex-col h-full">
-            <header class="grid shrink-0 grid-cols-[auto_1fr_auto] items-center gap-3 border-b-2 border-foreground bg-card px-4 py-3 md:px-6">
+            <header class="flex shrink-0 flex-wrap items-center justify-between gap-3 border-b-2 border-foreground bg-card px-4 py-3 md:grid md:grid-cols-[auto_1fr_auto] md:px-6">
                 <div class="flex items-center gap-2 pl-12 md:pl-0">
                     <Button variant="outline" size="icon" @click="navigate(-1)">
                         <IconChevronLeft class="size-4" />
@@ -264,14 +265,16 @@ const formatTime = (scheduledAt: string): string => {
                     <Button variant="outline" size="icon" @click="navigate(1)">
                         <IconChevronRight class="size-4" />
                     </Button>
-                    <DatePicker v-if="isMobile" v-model="selectedDate" @update:model-value="(v: any) => goToDate(v)" />
                 </div>
-                <div class="flex items-center justify-center">
+                <div class="hidden items-center justify-center md:flex">
                     <span class="truncate text-sm font-bold capitalize text-foreground">
                         {{ headerTitle }}
                     </span>
                 </div>
                 <div class="flex items-center gap-2">
+                    <div v-if="isMobile" class="w-44">
+                        <DatePicker v-model="selectedDate" :show-time="false" @update:model-value="(v: any) => goToDate(v)" />
+                    </div>
                     <Tabs v-if="!isMobile" :default-value="view" @update:model-value="switchView">
                         <TabsList>
                             <TabsTrigger value="day">{{ $t('calendar.day') }}</TabsTrigger>
diff --git a/resources/js/pages/posts/Index.vue b/resources/js/pages/posts/Index.vue
index 4789bdd0..72ca0a72 100644
--- a/resources/js/pages/posts/Index.vue
+++ b/resources/js/pages/posts/Index.vue
@@ -183,14 +183,14 @@ useWorkspaceEcho(
             <PageHeader :title="pageTitle" />
 
             <!-- Toolbar -->
-            <div class="flex items-center justify-between gap-3">
-                <div class="flex items-center gap-3">
-                    <div class="relative">
+            <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+                <div class="flex w-full items-center gap-3 sm:w-auto">
+                    <div class="relative w-full sm:w-auto">
                         <IconSearch class="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-foreground/60" />
                         <Input
                             v-model="searchQuery"
                             :placeholder="trans('posts.search')"
-                            class="w-64 pl-9"
+                            class="w-full pl-9 sm:w-64"
                         />
                     </div>
 
diff --git a/resources/js/pages/settings/workspace/ApiKeys.vue b/resources/js/pages/settings/workspace/ApiKeys.vue
index fb17628f..b12444f2 100644
--- a/resources/js/pages/settings/workspace/ApiKeys.vue
+++ b/resources/js/pages/settings/workspace/ApiKeys.vue
@@ -73,7 +73,7 @@ const tabs = computed(() => [
 
             <SettingsTabsNav :tabs="tabs" active="api-keys" />
 
-            <div class="flex items-center justify-between gap-4">
+            <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
                 <HeadingSmall
                     :title="$t('settings.api_keys.heading')"
                     :description="$t('settings.api_keys.description')"
@@ -128,7 +128,7 @@ const tabs = computed(() => [
                             <TableCell>
                                 <DropdownMenu>
                                     <DropdownMenuTrigger as-child>
-                                        <Button variant="outline" size="icon" class="size-8">
+                                        <Button variant="outline" size="icon" class="size-9">
                                             <IconDots class="size-4" />
                                         </Button>
                                     </DropdownMenuTrigger>
diff --git a/resources/js/pages/signatures/Index.vue b/resources/js/pages/signatures/Index.vue
index 2776d3b2..c464b131 100644
--- a/resources/js/pages/signatures/Index.vue
+++ b/resources/js/pages/signatures/Index.vue
@@ -91,13 +91,13 @@ const hasActiveSearch = computed(() => Boolean(searchQuery.value?.trim()));
         <div class="flex h-full flex-1 flex-col gap-6 px-6 py-8">
             <PageHeader :title="$t('signatures.title')" />
 
-            <div class="flex items-center justify-between gap-3">
-                <div class="relative">
+            <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+                <div class="relative w-full sm:w-auto">
                     <IconSearch class="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-muted-foreground" />
                     <Input
                         v-model="searchQuery"
                         :placeholder="trans('signatures.search')"
-                        class="w-64 pl-9"
+                        class="w-full pl-9 sm:w-64"
                     />
                 </div>
 
@@ -130,7 +130,7 @@ const hasActiveSearch = computed(() => Boolean(searchQuery.value?.trim()));
                                 @click="openEditDialog(signature)"
                             >
                                 <TableCell>{{ signature.name }}</TableCell>
-                                <TableCell class="max-w-md">
+                                <TableCell class="max-w-[160px] sm:max-w-md">
                                     <p class="truncate">{{ signature.content }}</p>
                                 </TableCell>
                                 <TableCell>{{ formatDate(signature.created_at) }}</TableCell>
diff --git a/resources/js/pages/workspaces/Show.vue b/resources/js/pages/workspaces/Show.vue
index 31cc00f1..4ea9d90d 100644
--- a/resources/js/pages/workspaces/Show.vue
+++ b/resources/js/pages/workspaces/Show.vue
@@ -41,14 +41,14 @@ defineProps<Props>();
 
     <AppLayout :title="workspace.name">
         <div class="flex flex-col gap-6 p-6">
-            <div class="flex items-center justify-between">
+            <div class="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
                 <div>
                     <h1 class="text-2xl font-bold tracking-tight">{{ workspace.name }}</h1>
                     <p class="text-muted-foreground">
                         Workspace dashboard
                     </p>
                 </div>
-                <div class="flex gap-2">
+                <div class="flex flex-wrap gap-2">
                     <Link :href="settings.url()">
                         <Button variant="ghost" size="icon">
                             <IconSettings class="h-4 w-4" />