diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b9dbd95..a192df8 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -34,6 +34,17 @@ matching the actual UI labels. English and Chinese copy must retain the same
 meaning and degree of formality. Update existing translation entries rather than
 adding duplicate messages or components.
 
+## Panel Visual Style
+
+Reuse `PageHeader`, the `Card` family, and the shared form and button components.
+Card titles, borders, corner radii, spacing, and save footers follow their shared
+definitions; avoid redefining these styles in individual pages. Use white card
+backgrounds in the light theme, restrained semantic colors, and 16px functional
+icons. Use `CardFooter` for save actions and `Button` for interactive controls.
+Tables, consoles, compact statistics, and status messages may retain spacing and
+colors suited to their content. Preserve the shared page margins and bottom
+spacing.
+
 ## Local Development
 
 You can do most day-to-day development on macOS or Linux without a full cluster.
diff --git a/panel/src/components/DistributedNodes.tsx b/panel/src/components/DistributedNodes.tsx
index 7a82819..f45c532 100644
--- a/panel/src/components/DistributedNodes.tsx
+++ b/panel/src/components/DistributedNodes.tsx
@@ -17,7 +17,7 @@ export function DistributedNodes() {
   usePolling(nodes.reload, 10_000);
   return (
     <Card>
-      <CardHeader className="flex-row items-center justify-between gap-3"><CardTitle>{t("nodes")}</CardTitle><Button variant="outline" size="sm" disabled={nodes.loading} onClick={nodes.reload}><RefreshCw />{t("nodes_reload")}</Button></CardHeader>
+      <CardHeader className="flex-row flex-wrap items-center justify-between gap-3"><CardTitle>{t("nodes")}</CardTitle><Button variant="outline" size="sm" disabled={nodes.loading} onClick={nodes.reload}><RefreshCw />{t("nodes_reload")}</Button></CardHeader>
       <CardContent className="space-y-3">
       {nodes.loading && <p role="status" className="flex items-center gap-2 text-sm text-muted-foreground"><Loader2 className="h-4 w-4 animate-spin" />{t("nodes_loading")}</p>}
       {!nodes.loading && !nodes.error && nodes.data?.length === 0 && <p className="text-sm text-muted-foreground">{t("nodes_empty")}</p>}
diff --git a/panel/src/components/EditServerDialog.tsx b/panel/src/components/EditServerDialog.tsx
index 40839fb..07eb67c 100644
--- a/panel/src/components/EditServerDialog.tsx
+++ b/panel/src/components/EditServerDialog.tsx
@@ -214,7 +214,7 @@ export function EditServerDialog({
         {/* Unified Sidebar Link/Card style trigger */}
         <button
           type="button"
-          className="group flex w-full text-left items-center gap-3 rounded-lg border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent focus:outline-none"
+          className="group flex w-full text-left items-center gap-3 rounded-xl border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent focus:outline-none"
         >
           <Settings className="h-5 w-5 shrink-0 text-primary" />
           <div className="min-w-0 flex-1 text-left">
diff --git a/panel/src/components/NodeControlPanel.tsx b/panel/src/components/NodeControlPanel.tsx
index c5dfc63..99eb1aa 100644
--- a/panel/src/components/NodeControlPanel.tsx
+++ b/panel/src/components/NodeControlPanel.tsx
@@ -52,7 +52,7 @@ export function NodeControlPanel({ distributed }: { distributed: boolean | null
   const showForm = distributed === true || distributed === false && enabling;
   const valid = confirmed && (action === "enable" || !!name.trim() && !!ssh.trim()) && (action === "approve" || !!ip.trim());
   return <Card>
-    <CardHeader className="flex-row items-center justify-between gap-3"><CardTitle>{t("node_control_title")}</CardTitle><Button variant="outline" size="sm" disabled={tasks.loading} onClick={() => { tasks.reload(); progress.reload(); }}><RefreshCw />{t("node_control_reload")}</Button></CardHeader>
+    <CardHeader className="flex-row flex-wrap items-center justify-between gap-3"><CardTitle>{t("node_control_title")}</CardTitle><Button variant="outline" size="sm" disabled={tasks.loading} onClick={() => { tasks.reload(); progress.reload(); }}><RefreshCw />{t("node_control_reload")}</Button></CardHeader>
     <CardContent className="space-y-5">
       <p className="text-sm leading-relaxed text-muted-foreground">{t("node_control_description")}</p>
       {tasks.loading && !tasks.data && <p role="status" className="flex items-center gap-2 text-sm text-muted-foreground"><Loader2 className="h-4 w-4 animate-spin" />{t("node_control_loading")}</p>}
diff --git a/panel/src/components/PlayerEntrySettings.tsx b/panel/src/components/PlayerEntrySettings.tsx
index bfdbd29..7932238 100644
--- a/panel/src/components/PlayerEntrySettings.tsx
+++ b/panel/src/components/PlayerEntrySettings.tsx
@@ -3,7 +3,7 @@ import { Link } from "react-router-dom";
 import { ArrowRight, DoorOpen, Globe, Loader2, LogIn, RefreshCw, Route, Save, Server, ShieldCheck } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import { Button } from "@/components/ui/button";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Card, CardContent, CardFooter, CardHeader, CardTitle } from "@/components/ui/card";
 import { Label } from "@/components/ui/label";
 import { Switch } from "@/components/ui/switch";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
@@ -60,7 +60,7 @@ export function PlayerEntrySettings() {
     } finally { setSaving(false); }
   }
   return <Card>
-    <CardHeader className="flex-row items-center justify-between gap-3"><CardTitle className="flex items-center gap-2"><Route className="h-4 w-4 text-primary" aria-hidden="true" />{t("entry_title")}</CardTitle><Button variant="outline" size="sm" disabled={dirty || saving || query.loading} onClick={() => { query.reload(); fleet.reload(); }}><RefreshCw />{t("platform_reload")}</Button></CardHeader>
+    <CardHeader className="flex-row flex-wrap items-center justify-between gap-3"><CardTitle className="flex items-center gap-2"><Route className="h-4 w-4 text-primary" aria-hidden="true" />{t("entry_title")}</CardTitle><Button variant="outline" size="sm" disabled={dirty || saving || query.loading} onClick={() => { query.reload(); fleet.reload(); }}><RefreshCw />{t("platform_reload")}</Button></CardHeader>
     <CardContent className="space-y-6" aria-busy={query.loading}>
       <p className="text-sm text-muted-foreground">{t("entry_description")}</p>
       {query.loading && <p role="status" className="flex items-center gap-2 text-sm text-muted-foreground"><Loader2 className="h-4 w-4 animate-spin" />{t("platform_loading")}</p>}
@@ -90,8 +90,8 @@ export function PlayerEntrySettings() {
       {query.error != null && <MessageLine kind="error" message={humanizeError(query.error)} />}
       {fleet.error != null && <MessageLine kind="error" message={humanizeError(fleet.error)} />}
       {message && <MessageLine kind={message.kind} message={message.text} />}
-      <div className="flex flex-wrap items-center justify-between gap-3 border-t border-border pt-4"><p className="text-xs text-muted-foreground">{t("entry_scope")}</p><div className="flex gap-2">{dirty && <Button variant="outline" disabled={saving} onClick={() => { if (saved) setDraft(saved); setMessage(null); }}>{t("platform_discard")}</Button>}<Button disabled={busy || !dirty || !valid} onClick={() => void save()}>{saving ? <Loader2 className="animate-spin" /> : <Save />}{t("entry_save")}</Button></div></div>
-      {reauth.dialog}
     </CardContent>
+    <CardFooter><p className="text-xs text-muted-foreground">{t("entry_scope")}</p><div className="flex gap-2">{dirty && <Button variant="outline" disabled={saving} onClick={() => { if (saved) setDraft(saved); setMessage(null); }}>{t("platform_discard")}</Button>}<Button disabled={busy || !dirty || !valid} onClick={() => void save()}>{saving ? <Loader2 className="animate-spin" /> : <Save />}{t("entry_save")}</Button></div></CardFooter>
+    {reauth.dialog}
   </Card>;
 }
diff --git a/panel/src/components/ui/button.tsx b/panel/src/components/ui/button.tsx
index 4feec6c..9844876 100644
--- a/panel/src/components/ui/button.tsx
+++ b/panel/src/components/ui/button.tsx
@@ -4,16 +4,16 @@ import { cva, type VariantProps } from "class-variance-authority";
 import { cn } from "@/lib/utils";
 
 const buttonVariants = cva(
-  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-all duration-150 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 [&_svg]:size-4 [&_svg]:shrink-0 active:scale-[0.97]",
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-colors duration-150 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 [&_svg]:size-4 [&_svg]:shrink-0",
   {
     variants: {
       variant: {
         default:
-          "bg-primary text-primary-foreground shadow-sm hover:bg-primary/90 hover:shadow",
+          "bg-primary text-primary-foreground hover:bg-primary/90",
         destructive:
-          "bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90 hover:shadow",
+          "bg-destructive text-destructive-foreground hover:bg-destructive/90",
         outline:
-          "border border-input bg-transparent shadow-sm hover:bg-accent hover:text-accent-foreground",
+          "border border-input bg-transparent hover:bg-accent hover:text-accent-foreground",
         ghost: "hover:bg-accent hover:text-accent-foreground",
         link: "text-primary underline-offset-4 hover:underline bg-transparent",
       },
diff --git a/panel/src/components/ui/card.tsx b/panel/src/components/ui/card.tsx
index 886d396..d26b299 100644
--- a/panel/src/components/ui/card.tsx
+++ b/panel/src/components/ui/card.tsx
@@ -8,7 +8,7 @@ export const Card = React.forwardRef<
   <div
     ref={ref}
     className={cn(
-      "rounded-lg border border-border bg-card text-card-foreground shadow-sm",
+      "rounded-xl border border-border bg-card text-card-foreground",
       className,
     )}
     {...props}
@@ -20,7 +20,7 @@ export const CardHeader = React.forwardRef<
   HTMLDivElement,
   React.HTMLAttributes<HTMLDivElement>
 >(({ className, ...props }, ref) => (
-  <div ref={ref} className={cn("flex flex-col space-y-1.5 p-5", className)} {...props} />
+  <div ref={ref} className={cn("flex flex-col gap-1.5 border-b border-border p-5 last:border-b-0", className)} {...props} />
 ));
 CardHeader.displayName = "CardHeader";
 
@@ -30,7 +30,7 @@ export const CardTitle = React.forwardRef<
 >(({ className, ...props }, ref) => (
   <h3
     ref={ref}
-    className={cn("font-semibold leading-none tracking-tight", className)}
+    className={cn("text-sm font-semibold leading-5 tracking-tight [&_svg]:size-4 [&_svg]:shrink-0", className)}
     {...props}
   />
 ));
@@ -40,7 +40,7 @@ export const CardContent = React.forwardRef<
   HTMLDivElement,
   React.HTMLAttributes<HTMLDivElement>
 >(({ className, ...props }, ref) => (
-  <div ref={ref} className={cn("p-5 pt-0", className)} {...props} />
+  <div ref={ref} className={cn("p-5", className)} {...props} />
 ));
 CardContent.displayName = "CardContent";
 
@@ -48,6 +48,6 @@ export const CardFooter = React.forwardRef<
   HTMLDivElement,
   React.HTMLAttributes<HTMLDivElement>
 >(({ className, ...props }, ref) => (
-  <div ref={ref} className={cn("flex items-center p-5 pt-0", className)} {...props} />
+  <div ref={ref} className={cn("flex flex-wrap items-center justify-between gap-3 border-t border-border p-4", className)} {...props} />
 ));
 CardFooter.displayName = "CardFooter";
diff --git a/panel/src/components/ui/input.tsx b/panel/src/components/ui/input.tsx
index a2855bd..a48e13f 100644
--- a/panel/src/components/ui/input.tsx
+++ b/panel/src/components/ui/input.tsx
@@ -9,7 +9,7 @@ export const Input = React.forwardRef<
     type={type}
     ref={ref}
     className={cn(
-      "flex h-9 w-full rounded-md border border-input bg-transparent px-3 py-1 text-sm shadow-sm transition-colors placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
+      "flex h-9 w-full rounded-md border border-input bg-transparent px-3 py-1 text-sm transition-colors placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
       className,
     )}
     {...props}
diff --git a/panel/src/components/ui/select.tsx b/panel/src/components/ui/select.tsx
index 3265534..976b266 100644
--- a/panel/src/components/ui/select.tsx
+++ b/panel/src/components/ui/select.tsx
@@ -14,7 +14,7 @@ export const SelectTrigger = React.forwardRef<
   <SelectPrimitive.Trigger
     ref={ref}
     className={cn(
-      "flex h-9 w-full items-center justify-between rounded-md border border-input bg-transparent px-3 py-1 text-sm shadow-sm focus:outline-none focus:ring-2 focus:ring-ring disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
+      "flex h-9 w-full items-center justify-between rounded-md border border-input bg-transparent px-3 py-1 text-sm focus:outline-none focus:ring-2 focus:ring-ring disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
       className,
     )}
     {...props}
diff --git a/panel/src/pages/Account.tsx b/panel/src/pages/Account.tsx
index 3c18c87..4d68ac8 100644
--- a/panel/src/pages/Account.tsx
+++ b/panel/src/pages/Account.tsx
@@ -300,7 +300,7 @@ export function Account() {
 
       <Card>
         <CardHeader>
-          <CardTitle className="flex items-center gap-2 text-base">
+          <CardTitle className="flex items-center gap-2">
             <Link2 className="h-4 w-4 text-primary" /> {t("minecraft_link")}
           </CardTitle>
         </CardHeader>
@@ -328,7 +328,7 @@ export function Account() {
 
       <Card>
         <CardHeader>
-          <CardTitle className="flex items-center gap-2 text-base">
+          <CardTitle className="flex items-center gap-2">
             <Mail className="h-4 w-4 text-primary" /> {t("email_verification")}
           </CardTitle>
         </CardHeader>
@@ -423,8 +423,8 @@ export function Account() {
       </Card>
 
       <Card>
-        <CardHeader className="flex flex-row items-center justify-between space-y-0">
-          <CardTitle className="flex items-center gap-2 text-base">
+        <CardHeader className="flex flex-row flex-wrap items-center justify-between">
+          <CardTitle className="flex items-center gap-2">
             <Fingerprint className="h-4 w-4 text-primary" /> {t("passkeys")}
           </CardTitle>
           <Dialog open={registerDialogOpen} onOpenChange={(open) => {
@@ -817,7 +817,7 @@ function MigrationCard({ userId, hasPasskey }: { userId?: string; hasPasskey: bo
   return (
     <Card>
       <CardHeader>
-        <CardTitle className="flex items-center gap-2 text-base">
+        <CardTitle className="flex items-center gap-2">
           <ArrowRightLeft className="h-4 w-4 text-primary" /> {t("migration")}
         </CardTitle>
       </CardHeader>
diff --git a/panel/src/pages/AccountSessions.tsx b/panel/src/pages/AccountSessions.tsx
index 55cf892..297205b 100644
--- a/panel/src/pages/AccountSessions.tsx
+++ b/panel/src/pages/AccountSessions.tsx
@@ -91,7 +91,7 @@ export function AccountSessionsCard({ version, staff, onSignOut, signingOut }: P
   return (
     <Card>
       <CardHeader>
-        <CardTitle className="flex items-center gap-2 text-base">
+        <CardTitle className="flex items-center gap-2">
           <MonitorSmartphone className="h-4 w-4 text-primary" /> {t("sessions_title")}
         </CardTitle>
       </CardHeader>
diff --git a/panel/src/pages/Dashboard.tsx b/panel/src/pages/Dashboard.tsx
index 8df2e93..486b873 100644
--- a/panel/src/pages/Dashboard.tsx
+++ b/panel/src/pages/Dashboard.tsx
@@ -289,7 +289,7 @@ function FleetView({
         <div className="lg:col-span-8 flex flex-col gap-6 h-full">
           {/* 1. 游戏角色绑定 Banner */}
           <Card className="overflow-hidden">
-            <CardContent className="p-5 flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
+            <CardContent className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
               <LinkCard link={link} staff={isAdmin} />
             </CardContent>
           </Card>
@@ -299,10 +299,10 @@ function FleetView({
             <>
               {/* 集群负载与健康卡片 */}
               <Card>
-                <CardHeader className="pb-3 pt-5">
-                  <CardTitle className="text-base">{t("fleet_load")}</CardTitle>
+                <CardHeader>
+                  <CardTitle>{t("fleet_load")}</CardTitle>
                 </CardHeader>
-                <CardContent className="space-y-5 pb-5">
+                <CardContent className="space-y-5">
                   {/* 玩家负载进度条 */}
                   <div className="space-y-2">
                     <div className="flex justify-between text-xs">
@@ -356,12 +356,12 @@ function FleetView({
 
               {/* 平台环境与配置参数卡片 (flex-1 自动拉伸) */}
               <Card className="flex-1 flex flex-col justify-between">
-                <CardHeader className="pb-3 pt-5 px-6">
-                  <CardTitle className="text-base font-semibold text-foreground">
+                <CardHeader>
+                  <CardTitle>
                     {t("system_specs")}
                   </CardTitle>
                 </CardHeader>
-                <CardContent className="px-6 pb-6 pt-1 flex-1 flex flex-col justify-between">
+                <CardContent className="flex-1 flex flex-col justify-between">
                   <div className="grid grid-cols-2 sm:grid-cols-3 gap-x-8 gap-y-6">
                     {/* 镜像总数 */}
                     <div className="space-y-1">
@@ -449,12 +449,12 @@ function FleetView({
             </>
           ) : (
             <Card className="overflow-hidden flex flex-col justify-between flex-1">
-              <CardHeader className="pb-3 pt-5 px-6">
-                <CardTitle className="text-base font-semibold text-foreground">
+              <CardHeader>
+                <CardTitle>
                   {t("welcome_title")}
                 </CardTitle>
               </CardHeader>
-              <CardContent className="px-6 pb-6 pt-1 flex-1 flex flex-col justify-between gap-4">
+              <CardContent className="flex-1 flex flex-col justify-between gap-4">
                 <p className="text-xs text-muted-foreground leading-relaxed">
                   {t("welcome_desc")}
                 </p>
@@ -483,8 +483,8 @@ function FleetView({
 
         {/* 右侧：3D星图拓扑监控 (lg:col-span-4 h-full) */}
         <Card className="lg:col-span-4 flex flex-col overflow-hidden h-full">
-          <CardHeader className="space-y-1 pb-4">
-            <CardTitle className="text-base">{t("fleet")}</CardTitle>
+          <CardHeader>
+            <CardTitle>{t("fleet")}</CardTitle>
           </CardHeader>
           <CardContent className="flex-1 flex flex-col p-0 justify-between">
             <div className="flex-1 min-h-[220px] w-full bg-gradient-to-b from-transparent to-primary/5 border-b relative">
diff --git a/panel/src/pages/MySubmissionsPage.tsx b/panel/src/pages/MySubmissionsPage.tsx
index c274cbb..46a5764 100644
--- a/panel/src/pages/MySubmissionsPage.tsx
+++ b/panel/src/pages/MySubmissionsPage.tsx
@@ -342,67 +342,67 @@ export function MySubmissionsPage() {
           {/* Filters Bar */}
           <div className="flex flex-col sm:flex-row gap-3 p-4 border-b">
             <SearchInput value={search} onChange={setSearch} placeholder={t("search_placeholder")} />
-            <div className="inline-flex h-9 items-center justify-center rounded-lg bg-muted p-1 text-muted-foreground shrink-0 select-none border border-border/40">
-              <button
+            <div className="inline-flex h-10 items-center justify-center rounded-lg bg-muted p-1 text-muted-foreground shrink-0 select-none border border-border/40">
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("all");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none",
+                  "font-medium",
                   statusFilter === "all"
-                    ? "bg-background text-foreground shadow-sm"
+                    ? "bg-background text-foreground"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("filter_all")} ({stats.total})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("pending_review");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none",
+                  "font-medium",
                   statusFilter === "pending_review"
-                    ? "bg-background text-amber-500 shadow-sm"
+                    ? "bg-background text-amber-500"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("status_pending_review")} ({stats.pending})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("approved");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none",
+                  "font-medium",
                   statusFilter === "approved"
-                    ? "bg-background text-emerald-500 shadow-sm"
+                    ? "bg-background text-emerald-500"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("status_approved")} ({stats.approved})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("rejected");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none",
+                  "font-medium",
                   statusFilter === "rejected"
-                    ? "bg-background text-rose-500 shadow-sm"
+                    ? "bg-background text-rose-500"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("status_rejected")} ({stats.rejected})
-              </button>
+              </Button>
             </div>
           </div>
 
diff --git a/panel/src/pages/ServerBackups.tsx b/panel/src/pages/ServerBackups.tsx
index 80b8f13..04ff8b5 100644
--- a/panel/src/pages/ServerBackups.tsx
+++ b/panel/src/pages/ServerBackups.tsx
@@ -947,8 +947,8 @@ export function ServerBackups() {
                 <Pagination page={page} pageSize={BACKUP_PAGE_SIZE} total={total} onChange={setPage} />
               )}
 
-              <Card className="border-dashed bg-transparent shadow-none">
-                <CardContent className="p-4 text-xs text-muted-foreground">
+              <Card className="border-dashed bg-transparent">
+                <CardContent className="text-xs text-muted-foreground">
                   {t("history_note")}
                 </CardContent>
               </Card>
@@ -961,7 +961,7 @@ export function ServerBackups() {
             <ErrorState error={jobsQ.error} onRetry={jobsQ.reload} />
           ) : (
             <Card className="overflow-hidden">
-              <CardContent className="p-4">
+              <CardContent>
                 <div className="flex items-center gap-2 text-xs font-medium uppercase tracking-wider text-muted-foreground">
                   <Clock className="h-3.5 w-3.5" />
                   {t("jobs_title")}
diff --git a/panel/src/pages/ServerConsole.tsx b/panel/src/pages/ServerConsole.tsx
index af39fb2..73e805d 100644
--- a/panel/src/pages/ServerConsole.tsx
+++ b/panel/src/pages/ServerConsole.tsx
@@ -316,7 +316,7 @@ export function ServerConsole() {
           )}
 
           {!error && startup && (
-            <div role="status" className="shrink-0 space-y-2 rounded-lg border border-border bg-card p-4 text-sm">
+            <div role="status" className="shrink-0 space-y-2 rounded-xl border border-border bg-card p-4 text-sm">
               <p className="flex items-center gap-2 font-medium">{startupBlocked ? <ShieldAlert className="h-4 w-4 text-amber-500" /> : <Loader2 className="h-4 w-4 animate-spin text-primary" />}{t(`startup_${startup.stage}`)}</p>
               {startup.startedAt && <p className="text-xs text-muted-foreground">{t("startup_elapsed", { seconds: Math.max(0, Math.floor((Date.now() - new Date(startup.startedAt).getTime()) / 1000)) })}</p>}
               {startup.reason && <p className="break-words text-muted-foreground">{startup.reason === "Unschedulable" && startup.message?.includes("Insufficient memory") ? t("startup_memory") : [startup.reason, startup.message].filter(Boolean).join(": ")}</p>}
@@ -378,9 +378,9 @@ export function ServerConsole() {
               {owned && (
                 <Link
                   to={`/servers/${name}/luckperms`}
-                  className="group flex items-center gap-3 rounded-lg border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
+                  className="group flex items-center gap-3 rounded-xl border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
                 >
-                  <Shield className="h-5 w-5 shrink-0 text-primary" />
+                  <Shield className="h-4 w-4 shrink-0 text-primary" />
                   <div className="min-w-0 flex-1">
                     <p className="text-sm font-medium">{t("luckperms_link_title")}</p>
                     <p className="text-xs text-muted-foreground mt-0.5">
@@ -395,9 +395,9 @@ export function ServerConsole() {
                   itself owns the ownership + readiness gating. */}
               <Link
                 to={`/servers/${name}/players`}
-                className="group flex items-center gap-3 rounded-lg border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
+                className="group flex items-center gap-3 rounded-xl border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
               >
-                <Users className="h-5 w-5 shrink-0 text-primary" />
+                <Users className="h-4 w-4 shrink-0 text-primary" />
                 <div className="min-w-0 flex-1">
                   <p className="text-sm font-medium">{t("players_link_title")}</p>
                   <p className="text-sm text-muted-foreground">{t("players_link_desc")}</p>
@@ -410,9 +410,9 @@ export function ServerConsole() {
                   restore in fact needs it stopped, so this doorway shows at every phase). */}
               <Link
                 to={`/servers/${name}/backups`}
-                className="group flex items-center gap-3 rounded-lg border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
+                className="group flex items-center gap-3 rounded-xl border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
               >
-                <Archive className="h-5 w-5 shrink-0 text-primary" />
+                <Archive className="h-4 w-4 shrink-0 text-primary" />
                 <div className="min-w-0 flex-1">
                   <p className="text-sm font-medium">{t("backups_link_title")}</p>
                   <p className="text-sm text-muted-foreground">{t("backups_link_desc")}</p>
@@ -425,9 +425,9 @@ export function ServerConsole() {
                   and offers the stop action; the doorway shows at every phase. */}
               <Link
                 to={`/servers/${name}/files`}
-                className="group flex items-center gap-3 rounded-lg border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
+                className="group flex items-center gap-3 rounded-xl border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
               >
-                <FolderOpen className="h-5 w-5 shrink-0 text-primary" />
+                <FolderOpen className="h-4 w-4 shrink-0 text-primary" />
                 <div className="min-w-0 flex-1">
                   <p className="text-sm font-medium">{t("files_link_title")}</p>
                   <p className="text-sm text-muted-foreground">{t("files_link_desc")}</p>
@@ -440,9 +440,9 @@ export function ServerConsole() {
                   doorway shows at every phase and the page owns its gating. */}
               <Link
                 to={`/servers/${name}/schedules`}
-                className="group flex items-center gap-3 rounded-lg border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
+                className="group flex items-center gap-3 rounded-xl border border-border bg-card p-4 transition-colors hover:border-primary/40 hover:bg-accent"
               >
-                <CalendarClock className="h-5 w-5 shrink-0 text-primary" />
+                <CalendarClock className="h-4 w-4 shrink-0 text-primary" />
                 <div className="min-w-0 flex-1">
                   <p className="text-sm font-medium">{t("schedules_link_title")}</p>
                   <p className="text-sm text-muted-foreground">{t("schedules_link_desc")}</p>
@@ -467,7 +467,7 @@ export function ServerConsole() {
 function HostRecovery({ name }: { name: string }) {
   const { t } = useTranslation("servers");
   if (!/^[a-z0-9][a-z0-9-]{0,31}$/.test(name)) return null;
-  return <details className="rounded-lg border border-border bg-card p-3 text-sm"><summary className="cursor-pointer font-medium">{t("host_recovery")}</summary><p className="my-3 text-muted-foreground">{t("host_recovery_hint")}</p><pre className="overflow-x-auto whitespace-pre-wrap rounded bg-muted p-3 text-xs">{`kubectl patch minecraftserver ${name} -n minecraft --type=merge -p '{"spec":{"desiredState":"Stopped"}}'
+  return <details className="rounded-xl border border-border bg-card p-3 text-sm"><summary className="cursor-pointer font-medium">{t("host_recovery")}</summary><p className="my-3 text-muted-foreground">{t("host_recovery_hint")}</p><pre className="overflow-x-auto whitespace-pre-wrap rounded bg-muted p-3 text-xs">{`kubectl patch minecraftserver ${name} -n minecraft --type=merge -p '{"spec":{"desiredState":"Stopped"}}'
 kubectl scale statefulset ${name} -n minecraft --replicas=0
 kubectl get pods -n minecraft -l felis.lolicon.best/server=${name},felis.lolicon.best/component=server -o wide`}</pre><p className="mt-3 text-muted-foreground">{t("host_recovery_verify")}</p></details>;
 }
diff --git a/panel/src/pages/ServerLuckPerms.tsx b/panel/src/pages/ServerLuckPerms.tsx
index 8f001b7..c86322a 100644
--- a/panel/src/pages/ServerLuckPerms.tsx
+++ b/panel/src/pages/ServerLuckPerms.tsx
@@ -400,9 +400,9 @@ export function ServerLuckPerms() {
           {/* Left Directory Sidebar: Single card for Search + Online Players. On a
               wide screen it fills the column; on a phone it fits its content and the
               list scrolls inside it, so the player's panel below is on the first screen. */}
-          <Card className="lg:col-span-1 flex flex-col lg:h-[calc(100vh-14rem)] lg:min-h-[500px] lg:max-h-[700px] border-border bg-card/60 backdrop-blur-sm overflow-hidden">
-            <CardHeader className="p-4 pb-2 border-b border-border/50 shrink-0">
-              <CardTitle className="text-xs font-bold uppercase tracking-wider text-muted-foreground flex items-center gap-2">
+          <Card className="lg:col-span-1 flex flex-col lg:h-[calc(100vh-14rem)] lg:min-h-[500px] lg:max-h-[700px] overflow-hidden">
+            <CardHeader className="shrink-0">
+              <CardTitle className="flex items-center gap-2">
                 <Users className="h-4 w-4 text-primary" />
                 {t("luckperms_batch_players")}
               </CardTitle>
@@ -426,7 +426,7 @@ export function ServerLuckPerms() {
                 {t("access_online_title")}
               </span>
             </div>
-            <CardContent className="p-2 overflow-y-auto max-h-52 lg:max-h-none flex-1 space-y-0.5 min-h-0">
+            <CardContent className="p-2 overflow-y-auto max-h-48 lg:max-h-none flex-1 space-y-0.5 min-h-0">
               {playersLoading && onlinePlayers.length === 0 ? (
                 <div className="flex justify-center py-6">
                   <Loader2 className="h-5 w-5 animate-spin text-primary" />
@@ -465,7 +465,7 @@ export function ServerLuckPerms() {
           {/* Right Main Panel */}
           <div className="lg:col-span-3 space-y-6">
             {!selectedPlayer ? (
-              <Card className="flex flex-col items-center justify-center py-8 lg:py-24 text-center border-dashed border-border bg-card/20 lg:min-h-[500px]">
+              <Card className="flex flex-col items-center justify-center py-8 lg:py-24 text-center border-dashed lg:min-h-[500px]">
                 <Shield className="h-14 w-14 text-muted-foreground/15 mb-4 animate-pulse" />
                 <p className="text-sm text-muted-foreground font-medium max-w-xs leading-normal">
                   {t("luckperms_select_player_prompt")}
@@ -525,13 +525,13 @@ export function ServerLuckPerms() {
                 )}
 
                 {/* Groups Management Card */}
-                <Card className="border-border bg-card/40 shadow-sm">
-                  <CardHeader className="p-5 pb-3 border-b border-border/50 bg-muted/20 shrink-0">
-                    <CardTitle className="text-xs font-bold uppercase tracking-wider text-muted-foreground">
+                <Card>
+                  <CardHeader className="shrink-0">
+                    <CardTitle>
                       {t("luckperms_groups_title")}
                     </CardTitle>
                   </CardHeader>
-                  <CardContent className="p-5 space-y-4">
+                  <CardContent className="space-y-4">
                     {lpLoading && !lpInfo ? (
                       <div className="flex justify-center py-4">
                         <Loader2 className="h-6 w-6 animate-spin text-primary" />
@@ -635,13 +635,13 @@ export function ServerLuckPerms() {
                 </Card>
 
                 {/* Permissions Management Card */}
-                <Card className="border-border bg-card/40 shadow-sm">
-                  <CardHeader className="p-5 pb-3 border-b border-border/50 bg-muted/20 shrink-0">
-                    <CardTitle className="text-xs font-bold uppercase tracking-wider text-muted-foreground">
+                <Card>
+                  <CardHeader className="shrink-0">
+                    <CardTitle>
                       {t("luckperms_permissions_title")}
                     </CardTitle>
                   </CardHeader>
-                  <CardContent className="p-5 space-y-4">
+                  <CardContent className="space-y-4">
                     {lpLoading && !lpInfo ? (
                       <div className="flex justify-center py-4">
                         <Loader2 className="h-6 w-6 animate-spin text-primary" />
@@ -831,10 +831,10 @@ export function ServerLuckPerms() {
             )}
 
             {/* Action History Log */}
-            <Card className="border-border bg-card/40 shadow-sm">
-              <CardHeader className="p-5 pb-3 border-b border-border/50 bg-muted/20 shrink-0">
+            <Card>
+              <CardHeader className="shrink-0">
                 <div className="flex items-center justify-between">
-                  <CardTitle className="text-xs font-bold uppercase tracking-wider text-muted-foreground flex items-center gap-1.5">
+                  <CardTitle className="flex items-center gap-1.5">
                     <History className="h-4 w-4 text-primary" />
                     {t("luckperms_recent_actions")}
                   </CardTitle>
@@ -851,7 +851,7 @@ export function ServerLuckPerms() {
                   )}
                 </div>
               </CardHeader>
-              <CardContent className="p-4 pt-3">
+              <CardContent className="pt-3">
                 {history.length === 0 ? (
                   <p className="text-xs text-muted-foreground/60 py-4 italic select-none text-center">
                     {t("luckperms_no_recent_actions")}
diff --git a/panel/src/pages/ServerSchedules.tsx b/panel/src/pages/ServerSchedules.tsx
index 83603f3..fe9523f 100644
--- a/panel/src/pages/ServerSchedules.tsx
+++ b/panel/src/pages/ServerSchedules.tsx
@@ -956,8 +956,8 @@ export function ServerSchedules() {
             </ul>
           </Card>
         )}
-        <Card className="border-dashed bg-transparent shadow-none">
-          <CardContent className="p-4 text-xs text-muted-foreground">
+        <Card className="border-dashed bg-transparent">
+          <CardContent className="text-xs text-muted-foreground">
             <p className="mb-2 flex items-center gap-1.5 font-medium text-foreground">
               <Info className="h-3.5 w-3.5" />
               {t("notes_title")}
diff --git a/panel/src/pages/admin/AuthSourcesPage.tsx b/panel/src/pages/admin/AuthSourcesPage.tsx
index 9ed2745..09980ea 100644
--- a/panel/src/pages/admin/AuthSourcesPage.tsx
+++ b/panel/src/pages/admin/AuthSourcesPage.tsx
@@ -5,7 +5,7 @@ import { PageHeader } from "@/components/PageHeader";
 import { InlineError, MessageLine } from "@/components/MessageLine";
 import { isReauthCancelled, useReauth } from "@/components/ReauthDialog";
 import { Button } from "@/components/ui/button";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Card, CardContent, CardFooter, CardHeader, CardTitle } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { Switch } from "@/components/ui/switch";
@@ -90,8 +90,8 @@ export function AuthSourcesPage() {
 
   return <div className="space-y-6">
     <PageHeader icon={ShieldCheck} title={t("title")} subtitle={t("subtitle")} />
-    <Card className="rounded-xl shadow-none"><CardContent className="flex items-start gap-3 pt-5">
-      <ShieldCheck className="mt-0.5 h-5 w-5 shrink-0 text-primary" />
+    <Card><CardContent className="flex items-start gap-3">
+      <ShieldCheck className="mt-0.5 h-4 w-4 shrink-0 text-primary" />
       <div className="space-y-1"><p className="text-sm font-semibold">{t("builtin_title")}</p><p className="text-xs leading-relaxed text-muted-foreground">{t("builtin_hint")}</p></div>
     </CardContent></Card>
     <div className="flex flex-wrap items-center justify-between gap-3">
@@ -114,10 +114,10 @@ export function AuthSourcesPage() {
           [sources[index], sources[index + offset]] = [sources[index + offset], sources[index]];
           edit(sources);
         };
-        return <Card key={index} className="overflow-hidden rounded-xl shadow-none">
-          <CardHeader className={cn("flex-row flex-wrap items-center justify-between gap-3 space-y-0 bg-muted/20 py-4", expanded && "border-b border-border/60")}>
-            <CardTitle className="min-w-0 flex-1 text-sm">
-              <Button variant="ghost" className="h-auto w-full justify-start whitespace-normal p-0 text-left hover:bg-transparent active:scale-100" aria-expanded={expanded} aria-controls={`source-fields-${index}`} aria-label={t(expanded ? "collapse" : "expand", { name: source.tag || t("new_source") })} disabled={!draft} onClick={() => setDraft((current) => current && { ...current, sources: current.sources.map((s, i) => i === index ? { ...s, expanded: !expanded } : s) })}>
+        return <Card key={index} className="overflow-hidden">
+          <CardHeader className="flex-row flex-wrap items-center justify-between gap-3">
+            <CardTitle className="min-w-0 flex-1">
+              <Button variant="ghost" className="h-auto w-full justify-start whitespace-normal p-0 text-left font-semibold hover:bg-transparent active:scale-100" aria-expanded={expanded} aria-controls={`source-fields-${index}`} aria-label={t(expanded ? "collapse" : "expand", { name: source.tag || t("new_source") })} disabled={!draft} onClick={() => setDraft((current) => current && { ...current, sources: current.sources.map((s, i) => i === index ? { ...s, expanded: !expanded } : s) })}>
                 <ChevronRight className={cn("transition-transform motion-reduce:transition-none", expanded && "rotate-90")} />
                 <span className="flex h-7 w-7 shrink-0 items-center justify-center rounded-lg bg-primary/10 text-xs font-semibold text-primary">{index + 2}</span>
                 <span className="break-all">{source.tag || t(draft ? "new_source" : "loading")}</span>
@@ -130,7 +130,7 @@ export function AuthSourcesPage() {
               {!locked && <Button variant="outline" size="icon" className="h-8 w-8" aria-label={t("remove")} disabled={!draft || busy} onClick={() => draft && edit(draft.sources.filter((_, i) => i !== index))}><Trash2 /></Button>}
             </div>
           </CardHeader>
-          <CardContent id={`source-fields-${index}`} hidden={!expanded} className="space-y-4 pt-5">
+          <CardContent id={`source-fields-${index}`} hidden={!expanded} className="space-y-4">
             <div className="grid gap-4 sm:grid-cols-2">
               <div className="space-y-2"><Label htmlFor={`source-tag-${index}`}>{t("tag")}</Label><Input id={`source-tag-${index}`} value={source.tag} readOnly={locked} disabled={!draft || busy} placeholder="littleskin" maxLength={128} onChange={(e) => set({ tag: e.target.value })} /><p className="text-xs text-muted-foreground">{t(locked ? "tag_locked" : "tag_hint")}</p></div>
               <div className="space-y-2"><Label htmlFor={`source-prefix-${index}`}>{t("prefix")}</Label><Input id={`source-prefix-${index}`} value={source.prefix} disabled={!draft || busy} placeholder="LS" maxLength={4} onChange={(e) => set({ prefix: e.target.value })} /><p className="text-xs text-muted-foreground">{t("prefix_hint")}</p></div>
@@ -142,18 +142,18 @@ export function AuthSourcesPage() {
           </CardContent>
         </Card>;
       })}
-      {draft?.sources.length === 0 && <Card className="border-dashed shadow-none"><CardContent className="py-8 text-center text-sm text-muted-foreground">{t("empty")}</CardContent></Card>}
+      {draft?.sources.length === 0 && <Card className="border-dashed"><CardContent className="py-8 text-center text-sm text-muted-foreground">{t("empty")}</CardContent></Card>}
     </div>
     <p className="text-xs leading-relaxed text-muted-foreground">{t("disable_hint")}</p>
     {message && <MessageLine kind={message.kind} message={message.text} />}
     {draft && !valid && <InlineError message={t("invalid")} />}
-    <div className="flex flex-wrap items-center justify-between gap-3 rounded-xl border border-border bg-card p-3">
+    <Card><CardFooter className="border-t-0">
       <p className="text-xs text-muted-foreground">{draft ? t(dirty ? "unsaved" : draft.managed ? "active" : "defaults") : query.loading ? t("loading") : ""}</p>
       <div className="flex gap-2">
         {dirty && <Button variant="outline" disabled={busy} onClick={discard}>{t("discard")}</Button>}
         <Button disabled={!dirty || !valid || busy} onClick={() => void save()}>{saving ? <Loader2 className="animate-spin" /> : <Save />}{t(saving ? "saving" : "save")}</Button>
       </div>
-    </div>
+    </CardFooter></Card>
     {reauth.dialog}
   </div>;
 }
diff --git a/panel/src/pages/admin/DBBackupCard.tsx b/panel/src/pages/admin/DBBackupCard.tsx
index 920dd38..cd9a0c8 100644
--- a/panel/src/pages/admin/DBBackupCard.tsx
+++ b/panel/src/pages/admin/DBBackupCard.tsx
@@ -142,22 +142,22 @@ export function DBBackupCard() {
 
   return (
     <Card className="w-full">
-      <CardHeader className="flex flex-row items-center justify-between gap-3 space-y-0">
+      <CardHeader className="flex flex-row flex-wrap items-center justify-between gap-3">
         <div className="flex min-w-0 items-center gap-3">
           <div
             className={cn(
-              "hidden rounded-md p-2 sm:block",
+              "hidden sm:block",
               state === "stale" || state === "never"
-                ? "bg-destructive/10 text-destructive"
+                ? "text-destructive"
                 : serversError
-                  ? "bg-amber-500/10 text-amber-600 dark:text-amber-400"
-                  : "bg-primary/10 text-primary",
+                  ? "text-amber-600 dark:text-amber-400"
+                  : "text-primary",
             )}
           >
-            <Database className="h-5 w-5" />
+            <Database className="h-4 w-4" />
           </div>
           <div className="min-w-0">
-            <CardTitle className="flex flex-wrap items-center gap-2 text-base font-semibold">
+            <CardTitle className="flex flex-wrap items-center gap-2">
               {t("dbbackup_title")}
               {badge}
             </CardTitle>
diff --git a/panel/src/pages/admin/ImageAdmin.tsx b/panel/src/pages/admin/ImageAdmin.tsx
index c99494e..7e4f950 100644
--- a/panel/src/pages/admin/ImageAdmin.tsx
+++ b/panel/src/pages/admin/ImageAdmin.tsx
@@ -207,52 +207,52 @@ export function ImageAdmin() {
           {/* Filters Bar */}
           <div className="flex flex-col sm:flex-row gap-3 p-4 border-b">
             <SearchInput value={search} onChange={setSearch} placeholder={t("images_search_placeholder")} />
-            <div className="inline-flex h-9 items-center justify-center rounded-lg bg-muted p-1 text-muted-foreground shrink-0 select-none border border-border/40">
-              <button
+            <div className="inline-flex h-10 items-center justify-center rounded-lg bg-muted p-1 text-muted-foreground shrink-0 select-none border border-border/40">
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("all");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "all"
-                    ? "bg-background text-foreground shadow-sm"
+                    ? "bg-background text-foreground"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground"
                 )}
               >
                 {t("filter_all")} ({stats.total})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("enabled");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "enabled"
-                    ? "bg-background text-primary shadow-sm"
+                    ? "bg-background text-primary"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground"
                 )}
               >
                 {t("filter_enabled")} ({stats.enabled})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("disabled");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "disabled"
-                    ? "bg-background text-foreground/80 shadow-sm"
+                    ? "bg-background text-foreground/80"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground"
                 )}
               >
                 {t("filter_disabled")} ({stats.disabled})
-              </button>
+              </Button>
             </div>
           </div>
 
diff --git a/panel/src/pages/admin/LobbyPage.tsx b/panel/src/pages/admin/LobbyPage.tsx
index 06f93bd..6f48e79 100644
--- a/panel/src/pages/admin/LobbyPage.tsx
+++ b/panel/src/pages/admin/LobbyPage.tsx
@@ -5,8 +5,9 @@ import { useTranslation } from "react-i18next";
 import { ConfirmDialog } from "@/components/ConfirmDialog";
 import { PageHeader } from "@/components/PageHeader";
 import { Switch } from "@/components/ui/switch";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Card, CardContent, CardFooter, CardHeader, CardTitle } from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { PhaseBadge, shownPhase, startFailure } from "@/components/PhaseBadge";
@@ -98,31 +99,31 @@ function ExperienceSettings({ name, server, onDirtyChange, onChanged }: { name:
         const fields = group.fields.filter((field) => typeof field.value !== "boolean");
         const switches = group.fields.filter((field) => typeof field.value === "boolean");
         return (
-          <Card key={group.key} className="overflow-hidden rounded-xl shadow-none">
-            <CardHeader className="flex-row items-center gap-3 space-y-0 border-b border-border/60 bg-muted/20 py-4">
-              <span className="rounded-lg bg-primary/10 p-2 text-primary"><Icon className="h-4 w-4" /></span>
+          <Card key={group.key} className="overflow-hidden">
+            <CardHeader className="flex-row flex-wrap items-center gap-3">
+              <span className="shrink-0 text-primary"><Icon className="h-4 w-4" /></span>
               <div className="space-y-1.5">
-                <CardTitle className="text-sm">{t(group.key)}</CardTitle>
+                <CardTitle>{t(group.key)}</CardTitle>
                 <p className="text-xs text-muted-foreground">{t(`${group.key}_description`)}</p>
               </div>
             </CardHeader>
-            <CardContent className="space-y-5 pt-5">
+            <CardContent className="space-y-5">
               <div className="grid items-start gap-x-5 gap-y-4 sm:grid-cols-2">
                 {fields.map((field) => {
                   const value = draft ? draft.values[field.key] ?? field.value : "";
                   const id = `experience-${field.key}`;
                   return (
                     <div key={id} className="min-w-0 space-y-2">
-                      <Label htmlFor={id} className="block text-xs font-medium text-muted-foreground">{t(field.key)}</Label>
+                      <Label htmlFor={id} className="block">{t(field.key)}</Label>
                       {field.choices ? (
-                        <select id={id} value={value as string} onChange={(e) => setValue(field.key, e.target.value)} disabled={!draft || saving || restarting} className="h-10 w-full rounded-lg border border-input bg-background px-3 text-sm outline-none transition-colors focus-visible:ring-2 focus-visible:ring-ring disabled:opacity-50">
-                          {!draft && <option value="">{query.loading ? t("common:loading") : "—"}</option>}
-                          {field.choices.map((choice) => <option key={choice} value={choice}>{t(choice)}</option>)}
-                        </select>
+                        <Select value={(value as string) || undefined} onValueChange={(choice) => setValue(field.key, choice)} disabled={!draft || saving || restarting}>
+                          <SelectTrigger id={id}><SelectValue placeholder={query.loading ? t("common:loading") : "—"} /></SelectTrigger>
+                          <SelectContent>{field.choices.map((choice) => <SelectItem key={choice} value={choice}>{t(choice)}</SelectItem>)}</SelectContent>
+                        </Select>
                       ) : field.multiline ? (
-                        <textarea id={id} value={value as string} placeholder={!draft && query.loading ? t("common:loading") : undefined} maxLength={512} onChange={(e) => setValue(field.key, e.target.value)} disabled={!draft || saving || restarting} className="block h-32 w-full resize-y rounded-lg border border-input bg-background px-3 py-2.5 text-sm leading-6 outline-none transition-colors focus-visible:ring-2 focus-visible:ring-ring disabled:opacity-50" />
+                        <textarea id={id} value={value as string} placeholder={!draft && query.loading ? t("common:loading") : undefined} maxLength={512} onChange={(e) => setValue(field.key, e.target.value)} disabled={!draft || saving || restarting} className="block h-32 w-full resize-y rounded-md border border-input bg-background px-3 py-2.5 text-sm leading-6 outline-none transition-colors focus-visible:ring-2 focus-visible:ring-ring disabled:opacity-50" />
                       ) : (
-                        <Input id={id} type={typeof field.value === "number" ? "number" : "text"} value={value as string | number} placeholder={!draft && query.loading ? t("common:loading") : undefined} min={field.min} max={field.max} step={1} maxLength={512} onChange={(e) => setValue(field.key, typeof field.value === "number" ? (e.target.value === "" ? "" : Number(e.target.value)) : e.target.value)} disabled={!draft || saving || restarting} className="h-10 rounded-lg bg-background shadow-none" />
+                        <Input id={id} type={typeof field.value === "number" ? "number" : "text"} value={value as string | number} placeholder={!draft && query.loading ? t("common:loading") : undefined} min={field.min} max={field.max} step={1} maxLength={512} onChange={(e) => setValue(field.key, typeof field.value === "number" ? (e.target.value === "" ? "" : Number(e.target.value)) : e.target.value)} disabled={!draft || saving || restarting} />
                       )}
                     </div>
                   );
@@ -143,7 +144,7 @@ function ExperienceSettings({ name, server, onDirtyChange, onChanged }: { name:
       <p className="text-sm text-muted-foreground">{t(name === "login" ? "login_settings_hint" : "lobby_settings_hint")}</p>
       {message && <MessageLine kind={message.kind} message={message.text} />}
       {draft && !experienceValid(draft.values, groups) && <InlineError message={t("invalid_values")} />}
-      <div className={cn("flex flex-wrap items-center justify-between gap-3 rounded-xl border bg-card p-3", needsRestart ? "border-amber-500/30 bg-amber-500/5" : "border-border")}>
+      <Card className={cn(needsRestart && "border-amber-500/30 bg-amber-500/5")}><CardFooter className="border-t-0">
         <p className={cn("text-xs", needsRestart ? "text-amber-700 dark:text-amber-400" : "text-muted-foreground")}>{t(dirty ? "unsaved" : needsRestart ? "restart_required" : "apply_on_start")}</p>
         <div className="flex flex-wrap gap-2">
           <Button variant="outline" disabled={!draft || !running || dirty || saving || restarting} onClick={() => {
@@ -152,7 +153,7 @@ function ExperienceSettings({ name, server, onDirtyChange, onChanged }: { name:
           }}><RotateCw className={cn(restarting && "animate-spin")} />{t(restarting ? "restarting" : "restart")}</Button>
           <Button onClick={() => void save()} disabled={!draft || !dirty || saving || restarting || !experienceValid(draft.values, groups)}><Save className="h-4 w-4" />{t(saving ? "saving" : "save")}</Button>
         </div>
-      </div>
+      </CardFooter></Card>
       <ConfirmDialog open={confirmRestart} onOpenChange={setConfirmRestart} title={t("restart_title")} description={t("restart_hint")} confirmLabel={t("restart")} onConfirm={restart} />
     </div>
   );
@@ -175,8 +176,8 @@ function BuilderAccess({ ready }: { ready: boolean }) {
       setBusy(false);
     }
   }
-  return <Card className="overflow-hidden rounded-xl shadow-none">
-    <CardHeader className="border-b border-border/60 bg-muted/20 py-4"><CardTitle className="text-sm">{t("builder_title")}</CardTitle></CardHeader>
+  return <Card className="overflow-hidden">
+    <CardHeader><CardTitle>{t("builder_title")}</CardTitle></CardHeader>
     <CardContent className="space-y-3 pt-4">
       <p className="text-sm text-muted-foreground">{t("builder_hint")}</p>
       <Label htmlFor="builder-player">{t("builder_player")}</Label>
@@ -215,9 +216,9 @@ export function LobbyPage() {
   ];
   return <div className="space-y-6">
     <PageHeader icon={DoorOpen} title={t("title")} subtitle={t("subtitle")} />
-    <Card className="rounded-xl bg-muted/20 shadow-none"><CardContent className="flex flex-wrap items-start justify-between gap-4 pt-5">
+    <Card><CardContent className="flex flex-wrap items-start justify-between gap-4">
       <div className="flex min-w-0 gap-3">
-        <Globe className="mt-0.5 h-5 w-5 shrink-0 text-primary" />
+        <Globe className="mt-0.5 h-4 w-4 shrink-0 text-primary" />
         <div className="space-y-1">
           <p className="text-sm font-medium">{t("connection_version", { version: cfg?.gameVersion ?? t("unknown_version") })}</p>
           {cfg && <CopyAddress address={joinAddress("login", cfg)} />}
@@ -228,22 +229,22 @@ export function LobbyPage() {
     </CardContent></Card>
     <div className="inline-flex gap-1 rounded-lg bg-muted/60 p-1" role="group" aria-label={t("space_label")}>
       {(["login", "lobby"] as const).map((space) => (
-        <Button key={space} variant="ghost" aria-pressed={name === space} onClick={() => selectSpace(space)} className={cn("px-4", name === space ? "bg-card text-primary shadow-sm hover:bg-card" : "text-muted-foreground")}>
+        <Button key={space} variant="ghost" aria-pressed={name === space} onClick={() => selectSpace(space)} className={cn("px-4", name === space ? "bg-card text-primary hover:bg-card" : "text-muted-foreground")}>
           {space === "lobby" ? <DoorOpen /> : <BookOpen />}{t(space)}
         </Button>
       ))}
     </div>
     <p className="text-sm text-muted-foreground">{t(`${name}_description`)}</p>
     {status.error != null && <ErrorState error={humanizeError(status.error)} onRetry={status.reload} />}
-    <div className="flex flex-wrap items-center justify-between gap-3 rounded-xl border border-border bg-card p-4">
-      <div className="min-w-0 space-y-2"><div className="flex flex-wrap items-center gap-3"><h2 className="font-semibold">{data?.displayName || t(name)}</h2>{data ? <PhaseBadge phase={shownPhase(data)} /> : status.loading && <span role="status" className="flex items-center gap-2 text-xs text-muted-foreground"><Loader2 className="h-3.5 w-3.5 animate-spin" />{t("common:loading")}</span>}</div><p className="break-all text-xs text-muted-foreground">{data?.image || "\u00a0"}</p></div>
+    <Card className="flex flex-wrap items-center justify-between gap-3 p-5">
+      <div className="min-w-0 space-y-2"><div className="flex flex-wrap items-center gap-3"><h2 className="text-sm font-semibold">{data?.displayName || t(name)}</h2>{data ? <PhaseBadge phase={shownPhase(data)} /> : status.loading && <span role="status" className="flex items-center gap-2 text-xs text-muted-foreground"><Loader2 className="h-3.5 w-3.5 animate-spin" />{t("common:loading")}</span>}</div><p className="break-all text-xs text-muted-foreground">{data?.image || "\u00a0"}</p></div>
       {data && <PowerButton name={name} phase={data.phase} desiredState={data.desiredState} failed={startFailure(data) !== null} playersOnline={data.playersOnline} playerCountUnknown={data.playerCountUnknown} onChanged={status.reload} />}
-    </div>
+    </Card>
     <div className="grid items-start gap-5 lg:grid-cols-[minmax(0,2fr)_minmax(0,1fr)]">
       <ExperienceSettings key={name} name={name} server={data} onDirtyChange={setDirty} onChanged={status.reload} />
       <div className="space-y-4">
-        <Card className="overflow-hidden rounded-xl shadow-none">
-          <CardHeader className="border-b border-border/60 bg-muted/20 py-4"><CardTitle className="text-sm">{t("content_tools")}</CardTitle></CardHeader>
+        <Card className="overflow-hidden">
+          <CardHeader><CardTitle>{t("content_tools")}</CardTitle></CardHeader>
           <CardContent className="divide-y divide-border/60 p-0">
             {links.map(({ icon: Icon, title, hint, to }) => (
               <Link key={title} to={to} className="group flex gap-3 p-4 transition-colors hover:bg-muted/40">
diff --git a/panel/src/pages/admin/PlatformSettingsPage.tsx b/panel/src/pages/admin/PlatformSettingsPage.tsx
index ded4ade..45c3ef0 100644
--- a/panel/src/pages/admin/PlatformSettingsPage.tsx
+++ b/panel/src/pages/admin/PlatformSettingsPage.tsx
@@ -10,7 +10,7 @@ import { PageHeader } from "@/components/PageHeader";
 import { MessageLine } from "@/components/MessageLine";
 import { isReauthCancelled, useReauth } from "@/components/ReauthDialog";
 import { Button } from "@/components/ui/button";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Card, CardContent, CardFooter, CardHeader, CardTitle } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { api, humanizeError } from "@/lib/api";
@@ -64,13 +64,13 @@ export function PlatformSettingsPage() {
     </CardContent></Card>
     {query.error != null && <MessageLine kind="error" message={humanizeError(query.error)} />}
     {message && <MessageLine kind={message.kind} message={message.text} />}
-    <div className="flex flex-wrap items-center justify-between gap-3 rounded-xl border border-border bg-card p-3">
+    <Card><CardFooter className="border-t-0">
       <p className="text-xs text-muted-foreground">{t(dirty ? "platform_unsaved" : "platform_live")}</p>
       <div className="flex gap-2">
         {dirty && <Button variant="outline" disabled={busy} onClick={() => { if (saved) load(saved); setMessage(null); }}>{t("platform_discard")}</Button>}
         <Button disabled={!dirty || !valid || busy} onClick={() => void save()}>{saving ? <Loader2 className="animate-spin" /> : <Save />}{t("platform_save")}</Button>
       </div>
-    </div>
+    </CardFooter></Card>
     <Card>
       <CardHeader><CardTitle>{t("platform_distribution_title")}</CardTitle></CardHeader>
       <CardContent className="space-y-4">
diff --git a/panel/src/pages/admin/SubmissionsPage.tsx b/panel/src/pages/admin/SubmissionsPage.tsx
index 6eef6b3..d1a9781 100644
--- a/panel/src/pages/admin/SubmissionsPage.tsx
+++ b/panel/src/pages/admin/SubmissionsPage.tsx
@@ -211,67 +211,67 @@ export function SubmissionsPage() {
           {/* Filters Bar */}
           <div className="flex flex-col sm:flex-row gap-3 p-4 border-b">
             <SearchInput value={search} onChange={setSearch} placeholder={t("submissions_search_placeholder")} />
-            <div className="inline-flex h-9 items-center justify-center rounded-lg bg-muted p-1 text-muted-foreground shrink-0 select-none border border-border/40">
-              <button
+            <div className="inline-flex h-10 items-center justify-center rounded-lg bg-muted p-1 text-muted-foreground shrink-0 select-none border border-border/40">
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("all");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "all"
-                    ? "bg-background text-foreground shadow-sm"
+                    ? "bg-background text-foreground"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("filter_all")} ({stats.total})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("pending_review");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "pending_review"
-                    ? "bg-background text-amber-500 shadow-sm"
+                    ? "bg-background text-amber-500"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("status_pending_review")} ({stats.pending})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("approved");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "approved"
-                    ? "bg-background text-emerald-500 shadow-sm"
+                    ? "bg-background text-emerald-500"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("status_approved")} ({stats.approved})
-              </button>
-              <button
+              </Button>
+              <Button variant="ghost" size="sm"
                 type="button"
                 onClick={() => {
                   setStatusFilter("rejected");
                   setPage(1);
                 }}
                 className={cn(
-                  "inline-flex items-center justify-center whitespace-nowrap rounded-md px-3 py-1 text-xs font-semibold transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
+                  "font-medium",
                   statusFilter === "rejected"
-                    ? "bg-background text-rose-500 shadow-sm"
+                    ? "bg-background text-rose-500"
                     : "text-muted-foreground hover:bg-background/30 hover:text-foreground",
                 )}
               >
                 {t("status_rejected")} ({stats.rejected})
-              </button>
+              </Button>
             </div>
           </div>
 
diff --git a/panel/src/pages/admin/UpdateReportCard.tsx b/panel/src/pages/admin/UpdateReportCard.tsx
index b03b65d..6ab27e5 100644
--- a/panel/src/pages/admin/UpdateReportCard.tsx
+++ b/panel/src/pages/admin/UpdateReportCard.tsx
@@ -80,22 +80,22 @@ export function UpdateReportCard() {
 
   return (
     <Card className="w-full">
-      <CardHeader className="flex flex-row items-center justify-between gap-3 space-y-0">
+      <CardHeader className="flex flex-row flex-wrap items-center justify-between gap-3">
         <div className="flex min-w-0 items-center gap-3">
           <div
             className={cn(
-              "hidden rounded-md p-2 sm:block",
+              "hidden sm:block",
               state === "stale" || state === "never"
-                ? "bg-destructive/10 text-destructive"
+                ? "text-destructive"
                 : available.length > 0
-                  ? "bg-amber-500/10 text-amber-500"
-                  : "bg-primary/10 text-primary",
+                  ? "text-amber-500"
+                  : "text-primary",
             )}
           >
-            <PackageCheck className="h-5 w-5" />
+            <PackageCheck className="h-4 w-4" />
           </div>
           <div className="min-w-0">
-            <CardTitle className="flex flex-wrap items-center gap-2 text-base font-semibold">
+            <CardTitle className="flex flex-wrap items-center gap-2">
               {t("versions_title")}
               {badge}
             </CardTitle>
diff --git a/panel/src/pages/admin/UpdatesPage.tsx b/panel/src/pages/admin/UpdatesPage.tsx
index f479cb0..d3ff2f2 100644
--- a/panel/src/pages/admin/UpdatesPage.tsx
+++ b/panel/src/pages/admin/UpdatesPage.tsx
@@ -209,7 +209,7 @@ export function UpdatesPage() {
       {/* Configuration Card */}
       <Card className="w-full">
         <CardHeader>
-          <CardTitle className="text-base font-semibold">{t("updates_set_title")}</CardTitle>
+          <CardTitle>{t("updates_set_title")}</CardTitle>
         </CardHeader>
         <CardContent className="space-y-6 text-sm">
           <p className="text-muted-foreground leading-relaxed">{t("updates_window_advisory")}</p>
diff --git a/panel/src/pages/admin/UserDetailPage.tsx b/panel/src/pages/admin/UserDetailPage.tsx
index 8d488a8..31f7a8b 100644
--- a/panel/src/pages/admin/UserDetailPage.tsx
+++ b/panel/src/pages/admin/UserDetailPage.tsx
@@ -179,7 +179,7 @@ function EditProfileCard({ user, onSaved, isSelf }: { user: UserDetail; onSaved:
   return (
     <Card>
       <CardHeader>
-        <CardTitle className="text-base font-semibold">{t("users_edit_profile")}</CardTitle>
+        <CardTitle>{t("users_edit_profile")}</CardTitle>
       </CardHeader>
       <CardContent className="space-y-4">
         <div className="space-y-1.5">
@@ -302,8 +302,8 @@ function LinkedAccountsCard({ user, onChanged }: { user: UserDetail; onChanged:
   return (
     <>
       <Card>
-        <CardHeader className="flex flex-row items-center justify-between">
-          <CardTitle className="text-base font-semibold">
+        <CardHeader className="flex flex-row flex-wrap items-center justify-between">
+          <CardTitle>
             {t("users_linked_accounts")} ({accounts.length})
         </CardTitle>
         <Button
@@ -462,7 +462,7 @@ function QuotasCard({ userId }: { userId: string }) {
   if (loading && !quotas) return <Loading label={t("common:loading")} />;
   if (error) return (
     <Card>
-      <CardHeader><CardTitle className="text-base font-semibold">{t("users_quotas")}</CardTitle></CardHeader>
+      <CardHeader><CardTitle>{t("users_quotas")}</CardTitle></CardHeader>
       <CardContent><ErrorState error={error} onRetry={reload} /></CardContent>
     </Card>
   );
@@ -470,7 +470,7 @@ function QuotasCard({ userId }: { userId: string }) {
   return (
     <Card>
       <CardHeader>
-        <CardTitle className="text-base font-semibold">{t("users_quotas")}</CardTitle>
+        <CardTitle>{t("users_quotas")}</CardTitle>
       </CardHeader>
       <CardContent className="space-y-4">
         <div className="grid grid-cols-2 gap-3">
@@ -600,8 +600,8 @@ function SessionsCard({ userId, onChanged }: { userId: string; onChanged: () =>
   return (
     <>
       <Card>
-        <CardHeader className="flex flex-row items-center justify-between">
-          <CardTitle className="text-base font-semibold">
+        <CardHeader className="flex flex-row flex-wrap items-center justify-between">
+          <CardTitle>
             {t("users_sessions")} ({sessions?.length ?? 0})
         </CardTitle>
         <Button
@@ -764,7 +764,7 @@ function DangerZone({
   return (
     <Card className="border-destructive/30">
       <CardHeader>
-        <CardTitle className="text-base font-semibold text-destructive">{t("users_danger_zone")}</CardTitle>
+        <CardTitle className="text-destructive">{t("users_danger_zone")}</CardTitle>
       </CardHeader>
       <CardContent className="space-y-5">
         {reason && (
diff --git a/panel/src/pages/servers/ServersPage.tsx b/panel/src/pages/servers/ServersPage.tsx
index d305fd5..ddbcf03 100644
--- a/panel/src/pages/servers/ServersPage.tsx
+++ b/panel/src/pages/servers/ServersPage.tsx
@@ -316,7 +316,7 @@ export function ServersPage() {
           {/* Distribution card in a full grid row */}
           {stats.total > 0 && (
             <Card>
-              <CardContent className="space-y-3 p-4">
+              <CardContent className="space-y-3">
                 <div className="text-xs font-medium text-muted-foreground text-left">
                   {t("fleet_distribution")}
                 </div>
@@ -749,8 +749,8 @@ function ServerMobileCard({
 
   return (
     <li className="flex min-w-0">
-      <Card className="flex min-w-0 flex-1 flex-col border border-border/80">
-        <CardContent className="flex flex-1 flex-col gap-3 p-4">
+      <Card className="flex min-w-0 flex-1 flex-col border">
+        <CardContent className="flex flex-1 flex-col gap-3">
           <div className="space-y-1">
             <div className="flex items-start justify-between gap-3">
               <div className="flex min-w-0 items-baseline gap-2">