fix: improve the ui

src/App.tsx

@@ -1,10 +1,13 @@
 import { QueryProvider } from "@/providers/QueryProvider"
+import { ThemeProvider } from "@/providers/ThemeProvider"
 import { AppRouter } from "@/router"
 
 export default function App() {
   return (
-    <QueryProvider>
-      <AppRouter />
-    </QueryProvider>
+    <ThemeProvider defaultTheme="system">
+      <QueryProvider>
+        <AppRouter />
+      </QueryProvider>
+    </ThemeProvider>
   )
 }

src/components/ThemeToggle.tsx

@@ -0,0 +1,48 @@
+import { Moon, Sun } from "lucide-react"
+import { useTheme } from "@/providers/ThemeProvider"
+import { Button } from "@/components/ui/button"
+import { cn } from "@/lib/utils"
+
+interface ThemeToggleProps {
+  className?: string
+  showLabel?: boolean
+  variant?: "outline" | "ghost" | "default" | "secondary"
+  size?: "default" | "sm" | "lg" | "icon"
+}
+
+export function ThemeToggle({
+  className,
+  showLabel = false,
+  variant = "outline",
+  size = "icon",
+}: ThemeToggleProps) {
+  const { theme, resolvedTheme, toggleTheme } = useTheme()
+  const isDark = resolvedTheme === "dark"
+
+  return (
+    <Button
+      variant={variant}
+      size={size}
+      onClick={toggleTheme}
+      className={cn(
+        "h-9 w-9 rounded-xl transition-all duration-200 cursor-pointer shrink-0",
+        className
+      )}
+      title={`Current: ${theme} (click to switch to ${isDark ? "light" : "dark"} mode)`}
+      aria-label={`Current theme: ${theme}. Click to switch to ${isDark ? "light" : "dark"} mode.`}
+    >
+      <div className="relative flex items-center justify-center">
+        {isDark ? (
+          <Moon className="h-4 w-4 text-cyan-400 transition-transform duration-200 hover:scale-110" />
+        ) : (
+          <Sun className="h-4 w-4 text-amber-500 transition-transform duration-200 hover:scale-110" />
+        )}
+      </div>
+      {showLabel && (
+        <span className="capitalize hidden min-[360px]:inline ml-1.5 text-xs">
+          {isDark ? "Dark" : "Light"}
+        </span>
+      )}
+    </Button>
+  )
+}

src/features/status/components/SystemOverviewCard.tsx

@@ -0,0 +1,232 @@
+import { Activity, AlertTriangle, Server, HardDrive, Cpu, AlertCircle, User, CheckCircle2 } from "lucide-react"
+import { Card, CardContent } from "@/components/ui/card"
+import { Progress } from "@/components/ui/progress"
+import { Skeleton } from "@/components/ui/skeleton"
+import { Badge } from "@/components/ui/badge"
+import { formatBytes } from "@/lib/format"
+import type { StatusResponse } from "../api/status.types"
+
+interface SystemOverviewCardProps {
+  status?: StatusResponse
+  isLoading: boolean
+  error?: Error | null
+}
+
+export function SystemOverviewCard({ status, isLoading, error }: SystemOverviewCardProps) {
+  if (isLoading) {
+    return (
+      <Card className="relative overflow-hidden border-border/80 bg-card/90 backdrop-blur-sm shadow-md py-4 sm:py-5">
+        <CardContent className="px-4 sm:px-6">
+          <div className="grid grid-cols-1 md:grid-cols-3 gap-4 md:gap-6 divide-y md:divide-y-0 md:divide-x divide-border/60">
+            {/* Gateway Skeleton */}
+            <div className="space-y-2.5 pb-3 md:pb-0">
+              <Skeleton className="h-4 w-28" />
+              <Skeleton className="h-7 w-36" />
+              <Skeleton className="h-4 w-44" />
+            </div>
+            {/* Storage Skeleton */}
+            <div className="space-y-2.5 pt-3 md:pt-0 md:px-6">
+              <Skeleton className="h-4 w-32" />
+              <Skeleton className="h-7 w-28" />
+              <Skeleton className="h-2 w-full" />
+            </div>
+            {/* Multipart Skeleton */}
+            <div className="space-y-2.5 pt-3 md:pt-0 md:pl-6">
+              <Skeleton className="h-4 w-28" />
+              <Skeleton className="h-7 w-32" />
+              <Skeleton className="h-4 w-40" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+    )
+  }
+
+  if (error || !status) {
+    return (
+      <Card className="relative overflow-hidden border-destructive/40 bg-card/90 backdrop-blur-sm shadow-md py-4 sm:py-5">
+        <div className="absolute top-0 left-0 right-0 h-1 bg-destructive" />
+        <CardContent className="px-4 sm:px-6">
+          <div className="flex items-center gap-3">
+            <div className="p-2.5 rounded-xl bg-destructive/10 text-destructive shrink-0">
+              <AlertTriangle className="h-5 w-5" />
+            </div>
+            <div className="min-w-0">
+              <h3 className="text-sm font-bold text-destructive">Gateway Service Unavailable</h3>
+              <p className="text-xs text-muted-foreground mt-0.5 truncate">
+                {error?.message || "Failed to query live status from Cloudflare Worker"}
+              </p>
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+    )
+  }
+
+  const isDegraded = status.gateway.status === "degraded" || !status.drive.connected
+  const drive = status.drive
+  const quota = drive.quota
+  const isUnlimited = quota?.limit == null
+  const percentUsed = quota?.percentUsed ?? 0
+  const isMultipartEnabled = status.gateway.multipartEnabled ?? false
+  const etagStyle = status.gateway.etagStyle ?? "md5"
+
+  return (
+    <Card className="relative overflow-hidden border-border/80 bg-card/90 backdrop-blur-sm shadow-md hover:shadow-lg transition-all py-4 sm:py-5 group">
+      {/* Top accent bar with unified status gradient */}
+      <div
+        className={`absolute top-0 left-0 right-0 h-1 ${
+          isDegraded
+            ? "bg-gradient-to-r from-amber-500 to-red-500"
+            : "bg-gradient-to-r from-emerald-500 via-blue-500 to-cyan-500"
+        }`}
+      />
+
+      <CardContent className="px-4 sm:px-6">
+        <div className="grid grid-cols-1 md:grid-cols-3 divide-y md:divide-y-0 md:divide-x divide-border/60">
+          
+          {/* Section 1: Gateway Engine */}
+          <div className="flex flex-col justify-between space-y-2 pb-4 md:pb-0 md:pr-6">
+            <div className="flex items-center justify-between">
+              <span className="text-[11px] font-bold uppercase tracking-wider text-muted-foreground">
+                Gateway Engine
+              </span>
+              <div
+                className={`p-1.5 rounded-lg ${
+                  isDegraded
+                    ? "bg-amber-500/10 text-amber-500"
+                    : "bg-emerald-500/10 text-emerald-500"
+                } group-hover:scale-105 transition-transform`}
+              >
+                <Server className="h-3.5 w-3.5" />
+              </div>
+            </div>
+
+            <div>
+              <div className="text-xl sm:text-2xl font-bold flex items-center gap-2 text-foreground">
+                <span
+                  className={`h-2.5 w-2.5 rounded-full ${
+                    isDegraded
+                      ? "bg-amber-500 shadow-xs shadow-amber-500/50"
+                      : "bg-emerald-500 shadow-xs shadow-emerald-500/50 animate-pulse"
+                  }`}
+                />
+                <span className="truncate">{isDegraded ? "Degraded" : "Online & Healthy"}</span>
+              </div>
+            </div>
+
+            <div className="text-xs text-muted-foreground flex items-center justify-between gap-1 pt-1">
+              <div className="flex items-center gap-1.5 min-w-0">
+                {isDegraded ? (
+                  <AlertTriangle className="h-3.5 w-3.5 text-amber-500 shrink-0" />
+                ) : (
+                  <Activity className="h-3.5 w-3.5 text-emerald-500 shrink-0" />
+                )}
+                <span className="truncate">
+                  {isDegraded
+                    ? drive.error || "Drive connection degraded"
+                    : `Edge routing · Region: ${status.gateway.region}`}
+                </span>
+              </div>
+              {status.gateway.docsEnabled && (
+                <Badge variant="neutral" className="text-[10px] px-1.5 py-0 shrink-0">
+                  Docs
+                </Badge>
+              )}
+            </div>
+          </div>
+
+          {/* Section 2: S3 Storage Backend (Google Drive) */}
+          <div className="flex flex-col justify-between space-y-2 py-4 md:py-0 md:px-6">
+            <div className="flex items-center justify-between">
+              <span className="text-[11px] font-bold uppercase tracking-wider text-muted-foreground">
+                S3 Storage Backend
+              </span>
+              <div className="p-1.5 rounded-lg bg-blue-500/10 text-blue-500 group-hover:scale-105 transition-transform">
+                <HardDrive className="h-3.5 w-3.5" />
+              </div>
+            </div>
+
+            {!drive.connected ? (
+              <div className="space-y-1">
+                <div className="text-xl font-bold text-foreground">Google Drive</div>
+                <p className="text-xs text-amber-600 dark:text-amber-400 flex items-center gap-1">
+                  <AlertCircle className="h-3.5 w-3.5 shrink-0" />
+                  <span className="truncate">{drive.error || "Drive connection error"}</span>
+                </p>
+              </div>
+            ) : (
+              <div className="space-y-1.5">
+                <div className="flex items-baseline justify-between gap-2">
+                  <div className="text-xl sm:text-2xl font-bold text-foreground">
+                    {formatBytes(quota?.usage)}
+                  </div>
+                  <div className="text-xs text-muted-foreground font-medium">
+                    {isUnlimited ? "Unlimited" : `/ ${formatBytes(quota?.limit)}`}
+                  </div>
+                </div>
+
+                {!isUnlimited && (
+                  <div className="space-y-1">
+                    <Progress
+                      value={percentUsed}
+                      indicatorClassName={
+                        percentUsed > 90
+                          ? "bg-red-500"
+                          : percentUsed > 75
+                          ? "bg-amber-500"
+                          : "bg-gradient-to-r from-blue-600 to-cyan-500"
+                      }
+                    />
+                    <div className="flex justify-between text-[11px] text-muted-foreground">
+                      <span>{percentUsed}% used</span>
+                      <span>{formatBytes(quota?.free)} free</span>
+                    </div>
+                  </div>
+                )}
+              </div>
+            )}
+
+            <div className="text-xs text-muted-foreground flex items-center gap-1.5 pt-0.5 truncate">
+              <User className="h-3.5 w-3.5 text-blue-500 shrink-0" />
+              <span className="truncate">
+                {drive.account?.email || drive.account?.displayName || "Google Drive"}
+              </span>
+            </div>
+          </div>
+
+          {/* Section 3: Multipart Uploads */}
+          <div className="flex flex-col justify-between space-y-2 pt-4 md:pt-0 md:pl-6">
+            <div className="flex items-center justify-between">
+              <span className="text-[11px] font-bold uppercase tracking-wider text-muted-foreground">
+                Multipart Uploads
+              </span>
+              <div className="p-1.5 rounded-lg bg-cyan-500/10 text-cyan-500 group-hover:scale-105 transition-transform">
+                <Cpu className="h-3.5 w-3.5" />
+              </div>
+            </div>
+
+            <div>
+              <div className="text-xl sm:text-2xl font-bold text-foreground flex items-center justify-between">
+                <span>{isMultipartEnabled ? "Enabled" : "Disabled"}</span>
+                <Badge variant={isMultipartEnabled ? "success" : "neutral"} className="text-[10px] px-2 py-0.5">
+                  {etagStyle.toUpperCase()} ETag
+                </Badge>
+              </div>
+            </div>
+
+            <p className="text-xs text-muted-foreground flex items-center gap-1.5 pt-1">
+              <CheckCircle2 className="h-3.5 w-3.5 text-cyan-500 shrink-0" />
+              <span className="truncate">
+                {isMultipartEnabled
+                  ? "Durable Objects resumable state"
+                  : "ALLOW_MULTIPART disabled"}
+              </span>
+            </p>
+          </div>
+
+        </div>
+      </CardContent>
+    </Card>
+  )
+}

src/index.css

@@ -73,6 +73,16 @@
   --radius-xl: calc(var(--radius) + 4px);
 }
 
+html {
+  font-size: 16.5px;
+}
+
+@media (min-width: 768px) {
+  html {
+    font-size: 17px;
+  }
+}
+
 body {
   margin: 0;
   min-height: 100vh;
@@ -91,6 +101,12 @@ body {
     linear-gradient(to bottom, rgba(99, 102, 241, 0.05) 1px, transparent 1px);
 }
 
+.dark .bg-grid-pattern {
+  background-image: 
+    linear-gradient(to right, rgba(99, 102, 241, 0.08) 1px, transparent 1px),
+    linear-gradient(to bottom, rgba(99, 102, 241, 0.08) 1px, transparent 1px);
+}
+
 .bg-gradient-brand {
   background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
 }

src/pages/Dashboard.tsx

@@ -13,11 +13,10 @@ import { useAuth } from "@/features/auth/hooks/useAuth"
 import { useStatus } from "@/features/status/hooks/useStatus"
 import { useBucketStats } from "@/features/status/hooks/useBucketStats"
 import { statusKeys } from "@/features/status/api/status.keys"
-import { GatewayStatusCard } from "@/features/status/components/GatewayStatusCard"
-import { DriveQuotaCard } from "@/features/status/components/DriveQuotaCard"
-import { MultipartStatusCard } from "@/features/status/components/MultipartStatusCard"
+import { SystemOverviewCard } from "@/features/status/components/SystemOverviewCard"
 import { BucketStatsTable } from "@/features/status/components/BucketStatsTable"
 import { Button } from "@/components/ui/button"
+import { ThemeToggle } from "@/components/ThemeToggle"
 import { formatRelativeTime } from "@/lib/format"
 
 export default function Dashboard() {
@@ -62,13 +61,6 @@ export default function Dashboard() {
 
   return (
     <div className="relative min-h-screen bg-background bg-grid-pattern flex flex-col overflow-x-hidden">
-      {/* Background ambient colorful glow effects */}
-      <div className="absolute inset-0 overflow-hidden pointer-events-none">
-        <div className="absolute -top-[15%] -left-[10%] h-[500px] w-[500px] rounded-full bg-blue-500/10 blur-[130px]" />
-        <div className="absolute top-[20%] -right-[15%] h-[550px] w-[550px] rounded-full bg-cyan-400/10 blur-[140px]" />
-        <div className="absolute -bottom-[20%] left-[30%] h-[400px] w-[400px] rounded-full bg-indigo-500/10 blur-[130px]" />
-      </div>
-
       {/* Navigation Header */}
       <header className="border-b border-border/70 bg-card/80 backdrop-blur-md sticky top-0 z-20 shadow-xs">
         <div className="max-w-6xl mx-auto px-3 sm:px-6 min-h-16 py-2.5 sm:py-0 flex items-center justify-between gap-3">
@@ -106,6 +98,7 @@ export default function Dashboard() {
               <Lock className="h-3.5 w-3.5 text-emerald-500" />
               <span className="font-medium text-foreground/80">Admin Mode</span>
             </div>
+            <ThemeToggle showLabel={false} />
             <Button
               variant="outline"
               size="sm"
@@ -170,24 +163,12 @@ export default function Dashboard() {
           </div>
         </div>
 
-        {/* Status / Quick Overview cards */}
-        <div className="grid gap-4 sm:grid-cols-3">
-          <GatewayStatusCard
-            status={statusData}
-            isLoading={isStatusLoading}
-            error={statusError}
-          />
-          <DriveQuotaCard
-            drive={statusData?.drive}
-            isLoading={isStatusLoading}
-            error={statusError}
-          />
-          <MultipartStatusCard
-            gateway={statusData?.gateway}
-            isLoading={isStatusLoading}
-            error={statusError}
-          />
-        </div>
+        {/* Unified Status / Quick Overview */}
+        <SystemOverviewCard
+          status={statusData}
+          isLoading={isStatusLoading}
+          error={statusError}
+        />
 
         {/* Feature Capabilities & Specifications */}
         <div className="w-full">

src/pages/SignIn.tsx

@@ -1,19 +1,12 @@
 import React, { useState } from "react"
 import { useNavigate, Navigate } from "react-router"
-import { Eye, EyeOff, Lock, Database, ArrowRight, Loader2, AlertCircle, Sparkles, Shield, Cloud } from "lucide-react"
+import { Eye, EyeOff, Lock, Database, ArrowRight, Loader2, AlertCircle } from "lucide-react"
 import { useAuth } from "@/features/auth/hooks/useAuth"
 import { ApiError } from "@/lib/api-client"
 import { Button } from "@/components/ui/button"
 import { Input } from "@/components/ui/input"
 import { Label } from "@/components/ui/label"
-import {
-  Card,
-  CardContent,
-  CardDescription,
-  CardFooter,
-  CardHeader,
-  CardTitle,
-} from "@/components/ui/card"
+import { ThemeToggle } from "@/components/ThemeToggle"
 
 function getErrorMessage(error: Error | null): string | null {
   if (!error) return null
@@ -75,134 +68,104 @@ export default function SignIn() {
   }
 
   return (
-    <div className="relative flex min-h-screen flex-col items-center justify-center bg-background bg-grid-pattern p-4 sm:p-6 lg:p-8 overflow-hidden">
-      {/* Background ambient colorful glow effects */}
-      <div className="absolute inset-0 overflow-hidden pointer-events-none">
-        <div className="absolute -top-[20%] -left-[10%] h-[550px] w-[550px] rounded-full bg-blue-500/15 blur-[130px]" />
-        <div className="absolute top-[30%] -right-[15%] h-[500px] w-[500px] rounded-full bg-cyan-400/15 blur-[120px]" />
-        <div className="absolute -bottom-[20%] left-[25%] h-[450px] w-[450px] rounded-full bg-indigo-500/12 blur-[140px]" />
+    <div className="relative flex min-h-screen flex-col items-center justify-center bg-background bg-grid-pattern p-4 overflow-hidden">
+      {/* Theme Toggle in top-right */}
+      <div className="absolute top-4 right-4 z-20">
+        <ThemeToggle showLabel={false} />
       </div>
 
-      <div className="relative w-full max-w-md">
-        {/* Logo and Brand Header */}
-        <div className="mb-8 text-center flex flex-col items-center">
-          <div className="relative mb-4 group cursor-default">
-            <div className="absolute -inset-1 rounded-2xl bg-gradient-to-r from-blue-600 via-indigo-500 to-cyan-400 opacity-70 blur-sm group-hover:opacity-100 transition duration-300" />
-            <div className="relative inline-flex h-16 w-16 items-center justify-center rounded-2xl bg-gradient-to-tr from-blue-600 via-indigo-600 to-cyan-500 text-white shadow-xl shadow-blue-500/25">
-              <Database className="h-8 w-8 text-white stroke-[2.2]" />
-            </div>
-            <div className="absolute -top-1.5 -right-1.5 flex h-6 w-6 items-center justify-center rounded-full bg-emerald-500 text-white ring-2 ring-background shadow-xs">
-              <Cloud className="h-3.5 w-3.5" />
-            </div>
+      <div className="w-full max-w-sm space-y-6">
+        {/* Brand & Header */}
+        <div className="text-center space-y-2">
+          <div className="inline-flex h-11 w-11 items-center justify-center rounded-xl bg-primary/10 text-primary border border-primary/20 shadow-xs mb-1">
+            <Database className="h-5 w-5" />
           </div>
-
-          <div className="inline-flex items-center gap-1.5 px-3 py-1 rounded-full bg-blue-500/10 border border-blue-500/20 text-blue-600 dark:text-blue-400 text-xs font-semibold mb-3">
-            <Sparkles className="h-3.5 w-3.5 text-blue-500" />
-            <span>Cloudflare Worker &amp; Drive Bridge</span>
-          </div>
-
-          <h1 className="text-3xl font-extrabold tracking-tight text-foreground sm:text-4xl">
-            S3 Drive <span className="bg-gradient-to-r from-blue-600 via-indigo-600 to-cyan-500 bg-clip-text text-transparent">Storage</span>
+          <h1 className="text-2xl font-bold tracking-tight text-foreground">
+            S3 Drive Storage
           </h1>
-          <p className="mt-2 text-sm text-muted-foreground font-medium">
-            High-performance management console for Google Drive S3 gateway
+          <p className="text-xs text-muted-foreground">
+            Enter your management password to access the console
           </p>
         </div>
 
         {/* Sign In Card */}
-        <Card className="border-border/70 bg-card/85 backdrop-blur-xl shadow-2xl shadow-blue-950/5 ring-1 ring-black/5 dark:ring-white/10 rounded-2xl overflow-hidden">
-          <div className="h-1.5 w-full bg-gradient-to-r from-blue-500 via-indigo-500 to-cyan-400" />
-          
-          <CardHeader className="space-y-1.5 pt-6 pb-4">
-            <CardTitle className="text-xl font-bold text-center tracking-tight">
-              Sign In to Console
-            </CardTitle>
-            <CardDescription className="text-center text-xs text-muted-foreground">
-              Enter your gateway access password to unlock management tools
-            </CardDescription>
-          </CardHeader>
-
-          <form onSubmit={handleSubmit}>
-            <CardContent className="space-y-4 px-6">
-              {/* Error Alert */}
-              {error && (
-                <div
-                  className="flex items-start gap-2.5 rounded-xl border border-destructive/20 bg-destructive/10 p-3.5 text-xs text-destructive animate-in fade-in slide-in-from-top-1 duration-200"
-                  role="alert"
-                >
-                  <AlertCircle className="h-4 w-4 shrink-0 mt-0.5" />
-                  <div className="leading-relaxed font-medium">{error}</div>
-                </div>
-              )}
-
-              {/* Password Input Field */}
-              <div className="space-y-2">
-                <Label htmlFor="password" className="text-xs font-semibold text-foreground/80">
-                  Access Password
-                </Label>
-                <div className="relative group">
-                  <div className="absolute inset-y-0 left-0 flex items-center pl-3.5 pointer-events-none text-muted-foreground group-focus-within:text-blue-600 transition-colors">
-                    <Lock className="h-4 w-4" />
-                  </div>
-                  <Input
-                    id="password"
-                    name="password"
-                    type={showPassword ? "text" : "password"}
-                    value={password}
-                    onChange={(e) => {
-                      setPassword(e.target.value)
-                      if (signInError) resetSignInError()
-                    }}
-                    placeholder="Enter management password"
-                    className="pl-10 pr-10 h-11 text-sm bg-background/80 border-border/80 rounded-xl focus-visible:ring-2 focus-visible:ring-blue-500/40 focus-visible:border-blue-500 transition-all"
-                    disabled={isSigningIn}
-                    autoComplete="current-password"
-                    autoFocus
-                  />
-                  <button
-                    type="button"
-                    onClick={() => setShowPassword(!showPassword)}
-                    className="absolute inset-y-0 right-0 flex items-center pr-3.5 text-muted-foreground hover:text-foreground transition-colors cursor-pointer"
-                    tabIndex={-1}
-                    aria-label={showPassword ? "Hide password" : "Show password"}
-                  >
-                    {showPassword ? (
-                      <EyeOff className="h-4 w-4" />
-                    ) : (
-                      <Eye className="h-4 w-4" />
-                    )}
-                  </button>
-                </div>
-              </div>
-            </CardContent>
-
-            <CardFooter className="pt-3 pb-7 px-6 flex flex-col gap-3">
-              <Button
-                type="submit"
-                className="w-full h-11 font-semibold rounded-xl text-sm"
-                disabled={isSigningIn || !password.trim()}
+        <div className="rounded-2xl border border-border/80 bg-card/90 backdrop-blur-md p-6 shadow-xl shadow-black/5 dark:shadow-black/30">
+          <form onSubmit={handleSubmit} className="space-y-4">
+            {/* Error Alert */}
+            {error && (
+              <div
+                className="flex items-start gap-2 rounded-lg border border-destructive/25 bg-destructive/10 p-3 text-xs text-destructive animate-in fade-in duration-200"
+                role="alert"
               >
-                {isSigningIn ? (
-                  <>
-                    <Loader2 className="h-4 w-4 animate-spin mr-2" />
-                    Verifying Credentials...
-                  </>
-                ) : (
-                  <>
-                    Unlock Console
-                    <ArrowRight className="h-4 w-4 ml-1 transition-transform group-hover:translate-x-1" />
-                  </>
-                )}
-              </Button>
-            </CardFooter>
-          </form>
-        </Card>
+                <AlertCircle className="h-4 w-4 shrink-0 mt-0.5" />
+                <div className="leading-relaxed font-medium">{error}</div>
+              </div>
+            )}
 
-        {/* Security badge footer */}
-        <div className="mt-8 flex items-center justify-center gap-2 text-xs text-muted-foreground">
-          <Shield className="h-3.5 w-3.5 text-emerald-500" />
-          <span>Protected by S3 Drive Storage Gateway • SHA-256 Auth</span>
+            {/* Password Input Field */}
+            <div className="space-y-1.5">
+              <Label htmlFor="password" className="text-xs font-medium text-muted-foreground">
+                Access Password
+              </Label>
+              <div className="relative">
+                <div className="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none text-muted-foreground">
+                  <Lock className="h-4 w-4" />
+                </div>
+                <Input
+                  id="password"
+                  name="password"
+                  type={showPassword ? "text" : "password"}
+                  value={password}
+                  onChange={(e) => {
+                    setPassword(e.target.value)
+                    if (signInError) resetSignInError()
+                  }}
+                  placeholder="••••••••••••"
+                  className="pl-9 pr-9 h-10 text-sm bg-background/60 border-border rounded-lg focus-visible:ring-2 focus-visible:ring-primary/30 focus-visible:border-primary transition-all"
+                  disabled={isSigningIn}
+                  autoComplete="current-password"
+                  autoFocus
+                />
+                <button
+                  type="button"
+                  onClick={() => setShowPassword(!showPassword)}
+                  className="absolute inset-y-0 right-0 flex items-center pr-3 text-muted-foreground hover:text-foreground transition-colors cursor-pointer"
+                  tabIndex={-1}
+                  aria-label={showPassword ? "Hide password" : "Show password"}
+                >
+                  {showPassword ? (
+                    <EyeOff className="h-4 w-4" />
+                  ) : (
+                    <Eye className="h-4 w-4" />
+                  )}
+                </button>
+              </div>
+            </div>
+
+            <Button
+              type="submit"
+              className="w-full h-10 font-medium rounded-lg text-sm mt-2"
+              disabled={isSigningIn || !password.trim()}
+            >
+              {isSigningIn ? (
+                <>
+                  <Loader2 className="h-4 w-4 animate-spin mr-2" />
+                  Authenticating...
+                </>
+              ) : (
+                <>
+                  Sign In
+                  <ArrowRight className="h-4 w-4 ml-1" />
+                </>
+              )}
+            </Button>
+          </form>
         </div>
+
+        {/* Minimal Footer */}
+        <p className="text-center text-[11px] text-muted-foreground/70">
+          Protected by S3 Drive Gateway Auth
+        </p>
       </div>
     </div>
   )

src/providers/ThemeProvider.tsx

@@ -0,0 +1,105 @@
+import * as React from "react"
+
+export type Theme = "light" | "dark" | "system"
+
+interface ThemeProviderProps {
+  children: React.ReactNode
+  defaultTheme?: Theme
+  storageKey?: string
+}
+
+interface ThemeContextType {
+  theme: Theme
+  resolvedTheme: "light" | "dark"
+  setTheme: (theme: Theme) => void
+  toggleTheme: () => void
+}
+
+const ThemeContext = React.createContext<ThemeContextType | undefined>(undefined)
+
+export function ThemeProvider({
+  children,
+  defaultTheme = "system",
+  storageKey = "s3-drive-ui-theme",
+}: ThemeProviderProps) {
+  const [theme, setThemeState] = React.useState<Theme>(() => {
+    try {
+      const stored = localStorage.getItem(storageKey) as Theme | null
+      if (stored === "light" || stored === "dark" || stored === "system") {
+        return stored
+      }
+    } catch {
+      // localStorage may be unavailable in some private browsing modes
+    }
+    return defaultTheme
+  })
+
+  const [resolvedTheme, setResolvedTheme] = React.useState<"light" | "dark">(() => {
+    if (theme === "system") {
+      return window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light"
+    }
+    return theme
+  })
+
+  React.useEffect(() => {
+    const root = document.documentElement
+    const mediaQuery = window.matchMedia("(prefers-color-scheme: dark)")
+
+    const applyTheme = () => {
+      const currentResolved =
+        theme === "system" ? (mediaQuery.matches ? "dark" : "light") : theme
+
+      setResolvedTheme(currentResolved)
+      root.classList.remove("light", "dark")
+      root.classList.add(currentResolved)
+      root.style.colorScheme = currentResolved
+    }
+
+    applyTheme()
+
+    const listener = () => {
+      if (theme === "system") {
+        applyTheme()
+      }
+    }
+
+    mediaQuery.addEventListener("change", listener)
+    return () => mediaQuery.removeEventListener("change", listener)
+  }, [theme])
+
+  const setTheme = React.useCallback(
+    (newTheme: Theme) => {
+      try {
+        localStorage.setItem(storageKey, newTheme)
+      } catch {
+        // ignore storage write errors
+      }
+      setThemeState(newTheme)
+    },
+    [storageKey]
+  )
+
+  const toggleTheme = React.useCallback(() => {
+    setTheme(resolvedTheme === "dark" ? "light" : "dark")
+  }, [resolvedTheme, setTheme])
+
+  const value = React.useMemo(
+    () => ({
+      theme,
+      resolvedTheme,
+      setTheme,
+      toggleTheme,
+    }),
+    [theme, resolvedTheme, setTheme, toggleTheme]
+  )
+
+  return <ThemeContext.Provider value={value}>{children}</ThemeContext.Provider>
+}
+
+export function useTheme(): ThemeContextType {
+  const context = React.useContext(ThemeContext)
+  if (!context) {
+    throw new Error("useTheme must be used within a ThemeProvider")
+  }
+  return context
+}