feat(frontend): Transform layout to use shadcn dashboard-01 with iOS PWA safe area support.

- Replace custom layout with modern SidebarProvider/SidebarInset structure
- Add AppSidebar component using shadcn patterns with preserved account summary
- Add SiteHeader component with SidebarTrigger integration
- Install shadcn sidebar, separator, and related UI components
- Fix iOS PWA safe area issues - sidebar no longer overlaps dynamic island/notch
- Add pt-safe-top and pl-safe-left classes to sidebar and header components
- Remove legacy Sidebar.tsx and Header.tsx components
- Preserve all existing functionality: navigation, API health status, theme toggle, PWA features
- Improve mobile responsive behavior with built-in shadcn drawer patterns

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/components/AppSidebar.tsx

@@ -0,0 +1,162 @@
+import React from "react";
+import { Link, useLocation } from "@tanstack/react-router";
+import {
+  List,
+  BarChart3,
+  Bell,
+  Settings,
+  Building2,
+  TrendingUp,
+  ChevronDown,
+  ChevronUp,
+} from "lucide-react";
+import { Logo } from "./ui/logo";
+import { useQuery } from "@tanstack/react-query";
+import { apiClient } from "../lib/api";
+import { formatCurrency } from "../lib/utils";
+import { useState } from "react";
+import type { Account } from "../types/api";
+import {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarHeader,
+  SidebarMenu,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarGroup,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+} from "./ui/sidebar";
+
+const navigation = [
+  { name: "Overview", icon: List, to: "/" },
+  { name: "Analytics", icon: BarChart3, to: "/analytics" },
+  { name: "Notifications", icon: Bell, to: "/notifications" },
+  { name: "Settings", icon: Settings, to: "/settings" },
+];
+
+export function AppSidebar({ ...props }: React.ComponentProps<typeof Sidebar>) {
+  const location = useLocation();
+  const [accountsExpanded, setAccountsExpanded] = useState(false);
+
+  const { data: accounts } = useQuery<Account[]>({
+    queryKey: ["accounts"],
+    queryFn: apiClient.getAccounts,
+  });
+
+  const totalBalance =
+    accounts?.reduce((sum, account) => {
+      const primaryBalance = account.balances?.[0]?.amount || 0;
+      return sum + primaryBalance;
+    }, 0) || 0;
+
+  return (
+    <Sidebar collapsible="icon" className="pt-safe-top pl-safe-left" {...props}>
+      <SidebarHeader>
+        <SidebarMenu>
+          <SidebarMenuItem>
+            <SidebarMenuButton
+              asChild
+              className="data-[slot=sidebar-menu-button]:!p-1.5"
+            >
+              <Link to="/" className="flex items-center space-x-2">
+                <Logo size={24} />
+                <span className="text-base font-semibold">Leggen</span>
+              </Link>
+            </SidebarMenuButton>
+          </SidebarMenuItem>
+        </SidebarMenu>
+      </SidebarHeader>
+
+      <SidebarContent>
+        <SidebarGroup>
+          <SidebarGroupContent>
+            <SidebarMenu>
+              {navigation.map((item) => (
+                <SidebarMenuItem key={item.to}>
+                  <SidebarMenuButton
+                    asChild
+                    tooltip={item.name}
+                    isActive={location.pathname === item.to}
+                  >
+                    <Link to={item.to}>
+                      <item.icon className="h-5 w-5" />
+                      <span>{item.name}</span>
+                    </Link>
+                  </SidebarMenuButton>
+                </SidebarMenuItem>
+              ))}
+            </SidebarMenu>
+          </SidebarGroupContent>
+        </SidebarGroup>
+      </SidebarContent>
+
+      <SidebarFooter>
+        {/* Account Summary Section */}
+        <SidebarGroup>
+          <SidebarGroupLabel>Account Summary</SidebarGroupLabel>
+          <div className="bg-muted rounded-lg p-1">
+            {/* Collapsible Header */}
+            <button
+              onClick={() => setAccountsExpanded(!accountsExpanded)}
+              className="w-full p-3 flex items-center justify-between hover:bg-muted/80 transition-colors rounded-lg"
+            >
+              <div className="flex items-center space-x-2">
+                <span className="text-sm font-medium text-muted-foreground">
+                  Total Balance
+                </span>
+                <TrendingUp className="h-4 w-4 text-green-500" />
+              </div>
+              {accountsExpanded ? (
+                <ChevronUp className="h-4 w-4 text-muted-foreground" />
+              ) : (
+                <ChevronDown className="h-4 w-4 text-muted-foreground" />
+              )}
+            </button>
+
+            <div className="px-3 pb-2">
+              <p className="text-xl font-bold text-foreground">
+                {formatCurrency(totalBalance)}
+              </p>
+              <p className="text-sm text-muted-foreground">
+                {accounts?.length || 0} accounts
+              </p>
+            </div>
+
+            {/* Expanded Account Details */}
+            {accountsExpanded && accounts && accounts.length > 0 && (
+              <div className="border-t border-border/50 max-h-48 overflow-y-auto">
+                {accounts.map((account) => {
+                  const primaryBalance = account.balances?.[0]?.amount || 0;
+                  const currency = account.balances?.[0]?.currency || account.currency || "EUR";
+
+                  return (
+                    <div
+                      key={account.id}
+                      className="p-2 border-b border-border/30 last:border-b-0 hover:bg-muted/50 transition-colors"
+                    >
+                      <div className="flex items-start space-x-2">
+                        <div className="flex-shrink-0 p-1 bg-background rounded">
+                          <Building2 className="h-3 w-3 text-muted-foreground" />
+                        </div>
+                        <div className="space-y-1 min-w-0 flex-1">
+                          <p className="text-xs font-medium text-foreground truncate">
+                            {account.display_name || account.name || "Unnamed Account"}
+                          </p>
+                          <p className="text-xs font-semibold text-foreground">
+                            {formatCurrency(primaryBalance, currency)}
+                          </p>
+                        </div>
+                      </div>
+                    </div>
+                  );
+                })}
+              </div>
+            )}
+          </div>
+        </SidebarGroup>
+      </SidebarFooter>
+    </Sidebar>
+  );
+}

frontend/src/components/Sidebar.tsx

@@ -1,160 +0,0 @@
-import { Link, useLocation } from "@tanstack/react-router";
-import {
-  List,
-  BarChart3,
-  Bell,
-  TrendingUp,
-  X,
-  ChevronDown,
-  ChevronUp,
-  Settings,
-  Building2,
-} from "lucide-react";
-import { Logo } from "./ui/logo";
-import { useQuery } from "@tanstack/react-query";
-import { apiClient } from "../lib/api";
-import { formatCurrency } from "../lib/utils";
-import { cn } from "../lib/utils";
-import { useState } from "react";
-import type { Account } from "../types/api";
-
-
-const navigation = [
-  { name: "Overview", icon: List, to: "/" },
-  { name: "Analytics", icon: BarChart3, to: "/analytics" },
-  { name: "Notifications", icon: Bell, to: "/notifications" },
-  { name: "Settings", icon: Settings, to: "/settings" },
-];
-
-interface SidebarProps {
-  sidebarOpen: boolean;
-  setSidebarOpen: (open: boolean) => void;
-}
-
-export default function Sidebar({ sidebarOpen, setSidebarOpen }: SidebarProps) {
-  const location = useLocation();
-  const [accountsExpanded, setAccountsExpanded] = useState(false);
-
-  const { data: accounts } = useQuery<Account[]>({
-    queryKey: ["accounts"],
-    queryFn: apiClient.getAccounts,
-  });
-
-  const totalBalance =
-    accounts?.reduce((sum, account) => {
-      const primaryBalance = account.balances?.[0]?.amount || 0;
-      return sum + primaryBalance;
-    }, 0) || 0;
-
-  return (
-    <div
-      className={cn(
-        "fixed inset-y-0 left-0 z-50 w-64 bg-card shadow-lg transform transition-transform duration-300 ease-in-out lg:translate-x-0 lg:static lg:inset-0",
-        sidebarOpen ? "translate-x-0" : "-translate-x-full",
-      )}
-    >
-      <div className="flex items-center justify-between h-16 px-6 border-b border-border">
-        <Link
-          to="/"
-          onClick={() => setSidebarOpen(false)}
-          className="flex items-center space-x-2 hover:opacity-80 transition-opacity"
-        >
-          <Logo size={32} />
-          <h1 className="text-xl font-bold text-card-foreground">Leggen</h1>
-        </Link>
-        <button
-          onClick={() => setSidebarOpen(false)}
-          className="lg:hidden p-1 rounded-md text-muted-foreground hover:text-foreground"
-        >
-          <X className="h-6 w-6" />
-        </button>
-      </div>
-
-      <nav className="px-6 py-4">
-        <div className="space-y-1">
-          {navigation.map((item) => (
-            <Link
-              key={item.to}
-              to={item.to}
-              onClick={() => setSidebarOpen(false)}
-              className={cn(
-                "flex items-center w-full px-3 py-2 text-sm font-medium rounded-md transition-colors",
-                location.pathname === item.to
-                  ? "bg-primary text-primary-foreground"
-                  : "text-card-foreground hover:text-card-foreground hover:bg-accent",
-              )}
-            >
-              <item.icon className="mr-3 h-5 w-5" />
-              {item.name}
-            </Link>
-          ))}
-        </div>
-      </nav>
-
-      {/* Collapsible Account Summary in Sidebar */}
-      <div className="px-6 pt-4 pb-6 border-t border-border mt-auto">
-        <div className="bg-muted rounded-lg">
-          {/* Collapsible Header */}
-          <button
-            onClick={() => setAccountsExpanded(!accountsExpanded)}
-            className="w-full p-4 flex items-center justify-between hover:bg-muted/80 transition-colors rounded-lg"
-          >
-            <div className="flex items-center justify-between w-full">
-              <div className="flex items-center space-x-2">
-                <span className="text-sm font-medium text-muted-foreground">
-                  Total Balance
-                </span>
-                <TrendingUp className="h-4 w-4 text-green-500" />
-              </div>
-              {accountsExpanded ? (
-                <ChevronUp className="h-4 w-4 text-muted-foreground" />
-              ) : (
-                <ChevronDown className="h-4 w-4 text-muted-foreground" />
-              )}
-            </div>
-          </button>
-
-          <div className="px-4 pb-2">
-            <p className="text-2xl font-bold text-foreground">
-              {formatCurrency(totalBalance)}
-            </p>
-            <p className="text-sm text-muted-foreground">
-              {accounts?.length || 0} accounts
-            </p>
-          </div>
-
-          {/* Expanded Account Details */}
-          {accountsExpanded && accounts && accounts.length > 0 && (
-            <div className="border-t border-border/50 max-h-64 overflow-y-auto">
-              {accounts.map((account) => {
-                const primaryBalance = account.balances?.[0]?.amount || 0;
-                const currency = account.balances?.[0]?.currency || account.currency || "EUR";
-
-                return (
-                  <div
-                    key={account.id}
-                    className="p-3 border-b border-border/30 last:border-b-0 hover:bg-muted/50 transition-colors"
-                  >
-                    <div className="flex items-start space-x-2">
-                      <div className="flex-shrink-0 p-1 bg-background rounded">
-                        <Building2 className="h-3 w-3 text-muted-foreground" />
-                      </div>
-                      <div className="space-y-1 min-w-0 flex-1">
-                        <p className="text-sm font-medium text-foreground truncate">
-                          {account.display_name || account.name || "Unnamed Account"}
-                        </p>
-                        <p className="text-sm font-semibold text-foreground">
-                          {formatCurrency(primaryBalance, currency)}
-                        </p>
-                      </div>
-                    </div>
-                  </div>
-                );
-              })}
-            </div>
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}

frontend/src/components/SiteHeader.tsx

@@ -1,8 +1,10 @@
 import { useLocation } from "@tanstack/react-router";
-import { Menu, Activity, Wifi, WifiOff } from "lucide-react";
+import { Activity, Wifi, WifiOff } from "lucide-react";
 import { useQuery } from "@tanstack/react-query";
 import { apiClient } from "../lib/api";
 import { ThemeToggle } from "./ui/theme-toggle";
+import { Separator } from "./ui/separator";
+import { SidebarTrigger } from "./ui/sidebar";
 
 const navigation = [
   { name: "Overview", to: "/" },
@@ -12,11 +14,7 @@ const navigation = [
   { name: "Settings", to: "/settings" },
 ];
 
-interface HeaderProps {
-  setSidebarOpen: (open: boolean) => void;
-}
-
-export default function Header({ setSidebarOpen }: HeaderProps) {
+export function SiteHeader() {
   const location = useLocation();
   const currentPage =
     navigation.find((item) => item.to === location.pathname)?.name ||
@@ -33,20 +31,18 @@ export default function Header({ setSidebarOpen }: HeaderProps) {
   });
 
   return (
-    <header className="lg:static sticky top-0 z-50 bg-card shadow-sm border-b border-border pt-safe-top">
-      <div className="flex items-center justify-between h-16 px-6">
-        <div className="flex items-center">
-          <button
-            onClick={() => setSidebarOpen(true)}
-            className="lg:hidden p-1 rounded-md text-muted-foreground hover:text-foreground"
-          >
-            <Menu className="h-6 w-6" />
-          </button>
-          <h2 className="text-lg font-semibold text-card-foreground lg:ml-0 ml-4">
-            {currentPage}
-          </h2>
-        </div>
-        <div className="flex items-center space-x-3">
+    <header className="flex h-16 shrink-0 items-center gap-2 border-b transition-[width,height] ease-linear pt-safe-top">
+      <div className="flex w-full items-center gap-1 px-4 lg:gap-2 lg:px-6">
+        <SidebarTrigger className="-ml-1" />
+        <Separator
+          orientation="vertical"
+          className="mx-2 data-[orientation=vertical]:h-4"
+        />
+        <h1 className="text-lg font-semibold text-card-foreground">
+          {currentPage}
+        </h1>
+
+        <div className="ml-auto flex items-center space-x-3">
           <div className="flex items-center space-x-1">
             {healthLoading ? (
               <>

frontend/src/components/ui/button.tsx

@@ -1,8 +1,8 @@
-import * as React from "react";
-import { Slot } from "@radix-ui/react-slot";
-import { cva, type VariantProps } from "class-variance-authority";
+import * as React from "react"
+import { Slot } from "@radix-ui/react-slot"
+import { cva, type VariantProps } from "class-variance-authority"
 
-import { cn } from "@/lib/utils";
+import { cn } from "@/lib/utils"
 
 const buttonVariants = cva(
   "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
@@ -31,27 +31,27 @@ const buttonVariants = cva(
       variant: "default",
       size: "default",
     },
-  },
-);
+  }
+)
 
 export interface ButtonProps
   extends React.ButtonHTMLAttributes<HTMLButtonElement>,
     VariantProps<typeof buttonVariants> {
-  asChild?: boolean;
+  asChild?: boolean
 }
 
 const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
   ({ className, variant, size, asChild = false, ...props }, ref) => {
-    const Comp = asChild ? Slot : "button";
+    const Comp = asChild ? Slot : "button"
     return (
       <Comp
         className={cn(buttonVariants({ variant, size, className }))}
         ref={ref}
         {...props}
       />
-    );
-  },
-);
-Button.displayName = "Button";
+    )
+  }
+)
+Button.displayName = "Button"
 
-export { Button, buttonVariants };
+export { Button, buttonVariants }

frontend/src/components/ui/input.tsx

@@ -1,6 +1,6 @@
-import * as React from "react";
+import * as React from "react"
 
-import { cn } from "@/lib/utils";
+import { cn } from "@/lib/utils"
 
 const Input = React.forwardRef<HTMLInputElement, React.ComponentProps<"input">>(
   ({ className, type, ...props }, ref) => {
@@ -9,14 +9,14 @@ const Input = React.forwardRef<HTMLInputElement, React.ComponentProps<"input">>(
         type={type}
         className={cn(
           "flex h-9 w-full rounded-md border border-input bg-transparent px-3 py-1 text-base shadow-sm transition-colors file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
-          className,
+          className
         )}
         ref={ref}
         {...props}
       />
-    );
-  },
-);
-Input.displayName = "Input";
+    )
+  }
+)
+Input.displayName = "Input"
 
-export { Input };
+export { Input }

frontend/src/components/ui/separator.tsx

@@ -0,0 +1,29 @@
+import * as React from "react"
+import * as SeparatorPrimitive from "@radix-ui/react-separator"
+
+import { cn } from "@/lib/utils"
+
+const Separator = React.forwardRef<
+  React.ElementRef<typeof SeparatorPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof SeparatorPrimitive.Root>
+>(
+  (
+    { className, orientation = "horizontal", decorative = true, ...props },
+    ref
+  ) => (
+    <SeparatorPrimitive.Root
+      ref={ref}
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border",
+        orientation === "horizontal" ? "h-[1px] w-full" : "h-full w-[1px]",
+        className
+      )}
+      {...props}
+    />
+  )
+)
+Separator.displayName = SeparatorPrimitive.Root.displayName
+
+export { Separator }

frontend/src/components/ui/sheet.tsx

@@ -1,17 +1,19 @@
-import * as React from "react";
-import * as SheetPrimitive from "@radix-ui/react-dialog";
-import { cva, type VariantProps } from "class-variance-authority";
-import { X } from "lucide-react";
+"use client"
 
-import { cn } from "@/lib/utils";
+import * as React from "react"
+import * as SheetPrimitive from "@radix-ui/react-dialog"
+import { cva, type VariantProps } from "class-variance-authority"
+import { X } from "lucide-react"
 
-const Sheet = SheetPrimitive.Root;
+import { cn } from "@/lib/utils"
 
-const SheetTrigger = SheetPrimitive.Trigger;
+const Sheet = SheetPrimitive.Root
 
-const SheetClose = SheetPrimitive.Close;
+const SheetTrigger = SheetPrimitive.Trigger
 
-const SheetPortal = SheetPrimitive.Portal;
+const SheetClose = SheetPrimitive.Close
+
+const SheetPortal = SheetPrimitive.Portal
 
 const SheetOverlay = React.forwardRef<
   React.ElementRef<typeof SheetPrimitive.Overlay>,
@@ -20,16 +22,16 @@ const SheetOverlay = React.forwardRef<
   <SheetPrimitive.Overlay
     className={cn(
       "fixed inset-0 z-50 bg-black/80  data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
-      className,
+      className
     )}
     {...props}
     ref={ref}
   />
-));
-SheetOverlay.displayName = SheetPrimitive.Overlay.displayName;
+))
+SheetOverlay.displayName = SheetPrimitive.Overlay.displayName
 
 const sheetVariants = cva(
-  "fixed z-50 gap-4 bg-background p-6 shadow-lg transition ease-in-out data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:duration-300 data-[state=open]:duration-500",
+  "fixed z-50 gap-4 bg-background p-6 shadow-lg transition ease-in-out data-[state=closed]:duration-300 data-[state=open]:duration-500 data-[state=open]:animate-in data-[state=closed]:animate-out",
   {
     variants: {
       side: {
@@ -38,14 +40,14 @@ const sheetVariants = cva(
           "inset-x-0 bottom-0 border-t data-[state=closed]:slide-out-to-bottom data-[state=open]:slide-in-from-bottom",
         left: "inset-y-0 left-0 h-full w-3/4 border-r data-[state=closed]:slide-out-to-left data-[state=open]:slide-in-from-left sm:max-w-sm",
         right:
-          "inset-y-0 right-0 h-full w-3/4  border-l data-[state=closed]:slide-out-to-right data-[state=open]:slide-in-from-right sm:max-w-sm",
+          "inset-y-0 right-0 h-full w-3/4 border-l data-[state=closed]:slide-out-to-right data-[state=open]:slide-in-from-right sm:max-w-sm",
       },
     },
     defaultVariants: {
       side: "right",
     },
-  },
-);
+  }
+)
 
 interface SheetContentProps
   extends React.ComponentPropsWithoutRef<typeof SheetPrimitive.Content>,
@@ -62,15 +64,15 @@ const SheetContent = React.forwardRef<
       className={cn(sheetVariants({ side }), className)}
       {...props}
     >
-      {children}
       <SheetPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-secondary">
         <X className="h-4 w-4" />
         <span className="sr-only">Close</span>
       </SheetPrimitive.Close>
+      {children}
     </SheetPrimitive.Content>
   </SheetPortal>
-));
-SheetContent.displayName = SheetPrimitive.Content.displayName;
+))
+SheetContent.displayName = SheetPrimitive.Content.displayName
 
 const SheetHeader = ({
   className,
@@ -79,12 +81,12 @@ const SheetHeader = ({
   <div
     className={cn(
       "flex flex-col space-y-2 text-center sm:text-left",
-      className,
+      className
     )}
     {...props}
   />
-);
-SheetHeader.displayName = "SheetHeader";
+)
+SheetHeader.displayName = "SheetHeader"
 
 const SheetFooter = ({
   className,
@@ -93,12 +95,12 @@ const SheetFooter = ({
   <div
     className={cn(
       "flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2",
-      className,
+      className
     )}
     {...props}
   />
-);
-SheetFooter.displayName = "SheetFooter";
+)
+SheetFooter.displayName = "SheetFooter"
 
 const SheetTitle = React.forwardRef<
   React.ElementRef<typeof SheetPrimitive.Title>,
@@ -109,8 +111,8 @@ const SheetTitle = React.forwardRef<
     className={cn("text-lg font-semibold text-foreground", className)}
     {...props}
   />
-));
-SheetTitle.displayName = SheetPrimitive.Title.displayName;
+))
+SheetTitle.displayName = SheetPrimitive.Title.displayName
 
 const SheetDescription = React.forwardRef<
   React.ElementRef<typeof SheetPrimitive.Description>,
@@ -121,8 +123,8 @@ const SheetDescription = React.forwardRef<
     className={cn("text-sm text-muted-foreground", className)}
     {...props}
   />
-));
-SheetDescription.displayName = SheetPrimitive.Description.displayName;
+))
+SheetDescription.displayName = SheetPrimitive.Description.displayName
 
 export {
   Sheet,
@@ -135,4 +137,4 @@ export {
   SheetFooter,
   SheetTitle,
   SheetDescription,
-};
+}

frontend/src/components/ui/sidebar.tsx

@@ -0,0 +1,771 @@
+import * as React from "react"
+import { Slot } from "@radix-ui/react-slot"
+import { cva, type VariantProps } from "class-variance-authority"
+import { PanelLeft } from "lucide-react"
+
+import { useIsMobile } from "@/hooks/use-mobile"
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Separator } from "@/components/ui/separator"
+import {
+  Sheet,
+  SheetContent,
+  SheetDescription,
+  SheetHeader,
+  SheetTitle,
+} from "@/components/ui/sheet"
+import { Skeleton } from "@/components/ui/skeleton"
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "@/components/ui/tooltip"
+
+const SIDEBAR_COOKIE_NAME = "sidebar_state"
+const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7
+const SIDEBAR_WIDTH = "16rem"
+const SIDEBAR_WIDTH_MOBILE = "18rem"
+const SIDEBAR_WIDTH_ICON = "3rem"
+const SIDEBAR_KEYBOARD_SHORTCUT = "b"
+
+type SidebarContextProps = {
+  state: "expanded" | "collapsed"
+  open: boolean
+  setOpen: (open: boolean) => void
+  openMobile: boolean
+  setOpenMobile: (open: boolean) => void
+  isMobile: boolean
+  toggleSidebar: () => void
+}
+
+const SidebarContext = React.createContext<SidebarContextProps | null>(null)
+
+function useSidebar() {
+  const context = React.useContext(SidebarContext)
+  if (!context) {
+    throw new Error("useSidebar must be used within a SidebarProvider.")
+  }
+
+  return context
+}
+
+const SidebarProvider = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div"> & {
+    defaultOpen?: boolean
+    open?: boolean
+    onOpenChange?: (open: boolean) => void
+  }
+>(
+  (
+    {
+      defaultOpen = true,
+      open: openProp,
+      onOpenChange: setOpenProp,
+      className,
+      style,
+      children,
+      ...props
+    },
+    ref
+  ) => {
+    const isMobile = useIsMobile()
+    const [openMobile, setOpenMobile] = React.useState(false)
+
+    // This is the internal state of the sidebar.
+    // We use openProp and setOpenProp for control from outside the component.
+    const [_open, _setOpen] = React.useState(defaultOpen)
+    const open = openProp ?? _open
+    const setOpen = React.useCallback(
+      (value: boolean | ((value: boolean) => boolean)) => {
+        const openState = typeof value === "function" ? value(open) : value
+        if (setOpenProp) {
+          setOpenProp(openState)
+        } else {
+          _setOpen(openState)
+        }
+
+        // This sets the cookie to keep the sidebar state.
+        document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`
+      },
+      [setOpenProp, open]
+    )
+
+    // Helper to toggle the sidebar.
+    const toggleSidebar = React.useCallback(() => {
+      return isMobile
+        ? setOpenMobile((open) => !open)
+        : setOpen((open) => !open)
+    }, [isMobile, setOpen, setOpenMobile])
+
+    // Adds a keyboard shortcut to toggle the sidebar.
+    React.useEffect(() => {
+      const handleKeyDown = (event: KeyboardEvent) => {
+        if (
+          event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
+          (event.metaKey || event.ctrlKey)
+        ) {
+          event.preventDefault()
+          toggleSidebar()
+        }
+      }
+
+      window.addEventListener("keydown", handleKeyDown)
+      return () => window.removeEventListener("keydown", handleKeyDown)
+    }, [toggleSidebar])
+
+    // We add a state so that we can do data-state="expanded" or "collapsed".
+    // This makes it easier to style the sidebar with Tailwind classes.
+    const state = open ? "expanded" : "collapsed"
+
+    const contextValue = React.useMemo<SidebarContextProps>(
+      () => ({
+        state,
+        open,
+        setOpen,
+        isMobile,
+        openMobile,
+        setOpenMobile,
+        toggleSidebar,
+      }),
+      [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar]
+    )
+
+    return (
+      <SidebarContext.Provider value={contextValue}>
+        <TooltipProvider delayDuration={0}>
+          <div
+            style={
+              {
+                "--sidebar-width": SIDEBAR_WIDTH,
+                "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
+                ...style,
+              } as React.CSSProperties
+            }
+            className={cn(
+              "group/sidebar-wrapper flex min-h-svh w-full has-[[data-variant=inset]]:bg-sidebar",
+              className
+            )}
+            ref={ref}
+            {...props}
+          >
+            {children}
+          </div>
+        </TooltipProvider>
+      </SidebarContext.Provider>
+    )
+  }
+)
+SidebarProvider.displayName = "SidebarProvider"
+
+const Sidebar = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div"> & {
+    side?: "left" | "right"
+    variant?: "sidebar" | "floating" | "inset"
+    collapsible?: "offcanvas" | "icon" | "none"
+  }
+>(
+  (
+    {
+      side = "left",
+      variant = "sidebar",
+      collapsible = "offcanvas",
+      className,
+      children,
+      ...props
+    },
+    ref
+  ) => {
+    const { isMobile, state, openMobile, setOpenMobile } = useSidebar()
+
+    if (collapsible === "none") {
+      return (
+        <div
+          className={cn(
+            "flex h-full w-[--sidebar-width] flex-col bg-sidebar text-sidebar-foreground",
+            className
+          )}
+          ref={ref}
+          {...props}
+        >
+          {children}
+        </div>
+      )
+    }
+
+    if (isMobile) {
+      return (
+        <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
+          <SheetContent
+            data-sidebar="sidebar"
+            data-mobile="true"
+            className="w-[--sidebar-width] bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
+            style={
+              {
+                "--sidebar-width": SIDEBAR_WIDTH_MOBILE,
+              } as React.CSSProperties
+            }
+            side={side}
+          >
+            <SheetHeader className="sr-only">
+              <SheetTitle>Sidebar</SheetTitle>
+              <SheetDescription>Displays the mobile sidebar.</SheetDescription>
+            </SheetHeader>
+            <div className="flex h-full w-full flex-col">{children}</div>
+          </SheetContent>
+        </Sheet>
+      )
+    }
+
+    return (
+      <div
+        ref={ref}
+        className="group peer hidden text-sidebar-foreground md:block"
+        data-state={state}
+        data-collapsible={state === "collapsed" ? collapsible : ""}
+        data-variant={variant}
+        data-side={side}
+      >
+        {/* This is what handles the sidebar gap on desktop */}
+        <div
+          className={cn(
+            "relative w-[--sidebar-width] bg-transparent transition-[width] duration-200 ease-linear",
+            "group-data-[collapsible=offcanvas]:w-0",
+            "group-data-[side=right]:rotate-180",
+            variant === "floating" || variant === "inset"
+              ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)_+_theme(spacing.4))]"
+              : "group-data-[collapsible=icon]:w-[--sidebar-width-icon]"
+          )}
+        />
+        <div
+          className={cn(
+            "fixed inset-y-0 z-10 hidden h-svh w-[--sidebar-width] transition-[left,right,width] duration-200 ease-linear md:flex",
+            side === "left"
+              ? "left-0 group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)]"
+              : "right-0 group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)]",
+            // Adjust the padding for floating and inset variants.
+            variant === "floating" || variant === "inset"
+              ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)_+_theme(spacing.4)_+2px)]"
+              : "group-data-[collapsible=icon]:w-[--sidebar-width-icon] group-data-[side=left]:border-r group-data-[side=right]:border-l",
+            className
+          )}
+          {...props}
+        >
+          <div
+            data-sidebar="sidebar"
+            className="flex h-full w-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:border group-data-[variant=floating]:border-sidebar-border group-data-[variant=floating]:shadow"
+          >
+            {children}
+          </div>
+        </div>
+      </div>
+    )
+  }
+)
+Sidebar.displayName = "Sidebar"
+
+const SidebarTrigger = React.forwardRef<
+  React.ElementRef<typeof Button>,
+  React.ComponentProps<typeof Button>
+>(({ className, onClick, ...props }, ref) => {
+  const { toggleSidebar } = useSidebar()
+
+  return (
+    <Button
+      ref={ref}
+      data-sidebar="trigger"
+      variant="ghost"
+      size="icon"
+      className={cn("h-7 w-7", className)}
+      onClick={(event) => {
+        onClick?.(event)
+        toggleSidebar()
+      }}
+      {...props}
+    >
+      <PanelLeft />
+      <span className="sr-only">Toggle Sidebar</span>
+    </Button>
+  )
+})
+SidebarTrigger.displayName = "SidebarTrigger"
+
+const SidebarRail = React.forwardRef<
+  HTMLButtonElement,
+  React.ComponentProps<"button">
+>(({ className, ...props }, ref) => {
+  const { toggleSidebar } = useSidebar()
+
+  return (
+    <button
+      ref={ref}
+      data-sidebar="rail"
+      aria-label="Toggle Sidebar"
+      tabIndex={-1}
+      onClick={toggleSidebar}
+      title="Toggle Sidebar"
+      className={cn(
+        "absolute inset-y-0 z-20 hidden w-4 -translate-x-1/2 transition-all ease-linear after:absolute after:inset-y-0 after:left-1/2 after:w-[2px] hover:after:bg-sidebar-border group-data-[side=left]:-right-4 group-data-[side=right]:left-0 sm:flex",
+        "[[data-side=left]_&]:cursor-w-resize [[data-side=right]_&]:cursor-e-resize",
+        "[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize",
+        "group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full group-data-[collapsible=offcanvas]:hover:bg-sidebar",
+        "[[data-side=left][data-collapsible=offcanvas]_&]:-right-2",
+        "[[data-side=right][data-collapsible=offcanvas]_&]:-left-2",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarRail.displayName = "SidebarRail"
+
+const SidebarInset = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"main">
+>(({ className, ...props }, ref) => {
+  return (
+    <main
+      ref={ref}
+      className={cn(
+        "relative flex w-full flex-1 flex-col bg-background",
+        "md:peer-data-[variant=inset]:m-2 md:peer-data-[state=collapsed]:peer-data-[variant=inset]:ml-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:shadow",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarInset.displayName = "SidebarInset"
+
+const SidebarInput = React.forwardRef<
+  React.ElementRef<typeof Input>,
+  React.ComponentProps<typeof Input>
+>(({ className, ...props }, ref) => {
+  return (
+    <Input
+      ref={ref}
+      data-sidebar="input"
+      className={cn(
+        "h-8 w-full bg-background shadow-none focus-visible:ring-2 focus-visible:ring-sidebar-ring",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarInput.displayName = "SidebarInput"
+
+const SidebarHeader = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div">
+>(({ className, ...props }, ref) => {
+  return (
+    <div
+      ref={ref}
+      data-sidebar="header"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  )
+})
+SidebarHeader.displayName = "SidebarHeader"
+
+const SidebarFooter = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div">
+>(({ className, ...props }, ref) => {
+  return (
+    <div
+      ref={ref}
+      data-sidebar="footer"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  )
+})
+SidebarFooter.displayName = "SidebarFooter"
+
+const SidebarSeparator = React.forwardRef<
+  React.ElementRef<typeof Separator>,
+  React.ComponentProps<typeof Separator>
+>(({ className, ...props }, ref) => {
+  return (
+    <Separator
+      ref={ref}
+      data-sidebar="separator"
+      className={cn("mx-2 w-auto bg-sidebar-border", className)}
+      {...props}
+    />
+  )
+})
+SidebarSeparator.displayName = "SidebarSeparator"
+
+const SidebarContent = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div">
+>(({ className, ...props }, ref) => {
+  return (
+    <div
+      ref={ref}
+      data-sidebar="content"
+      className={cn(
+        "flex min-h-0 flex-1 flex-col gap-2 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarContent.displayName = "SidebarContent"
+
+const SidebarGroup = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div">
+>(({ className, ...props }, ref) => {
+  return (
+    <div
+      ref={ref}
+      data-sidebar="group"
+      className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
+      {...props}
+    />
+  )
+})
+SidebarGroup.displayName = "SidebarGroup"
+
+const SidebarGroupLabel = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div"> & { asChild?: boolean }
+>(({ className, asChild = false, ...props }, ref) => {
+  const Comp = asChild ? Slot : "div"
+
+  return (
+    <Comp
+      ref={ref}
+      data-sidebar="group-label"
+      className={cn(
+        "flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-medium text-sidebar-foreground/70 outline-none ring-sidebar-ring transition-[margin,opacity] duration-200 ease-linear focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        "group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarGroupLabel.displayName = "SidebarGroupLabel"
+
+const SidebarGroupAction = React.forwardRef<
+  HTMLButtonElement,
+  React.ComponentProps<"button"> & { asChild?: boolean }
+>(({ className, asChild = false, ...props }, ref) => {
+  const Comp = asChild ? Slot : "button"
+
+  return (
+    <Comp
+      ref={ref}
+      data-sidebar="group-action"
+      className={cn(
+        "absolute right-3 top-3.5 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground outline-none ring-sidebar-ring transition-transform hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        // Increases the hit area of the button on mobile.
+        "after:absolute after:-inset-2 after:md:hidden",
+        "group-data-[collapsible=icon]:hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarGroupAction.displayName = "SidebarGroupAction"
+
+const SidebarGroupContent = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div">
+>(({ className, ...props }, ref) => (
+  <div
+    ref={ref}
+    data-sidebar="group-content"
+    className={cn("w-full text-sm", className)}
+    {...props}
+  />
+))
+SidebarGroupContent.displayName = "SidebarGroupContent"
+
+const SidebarMenu = React.forwardRef<
+  HTMLUListElement,
+  React.ComponentProps<"ul">
+>(({ className, ...props }, ref) => (
+  <ul
+    ref={ref}
+    data-sidebar="menu"
+    className={cn("flex w-full min-w-0 flex-col gap-1", className)}
+    {...props}
+  />
+))
+SidebarMenu.displayName = "SidebarMenu"
+
+const SidebarMenuItem = React.forwardRef<
+  HTMLLIElement,
+  React.ComponentProps<"li">
+>(({ className, ...props }, ref) => (
+  <li
+    ref={ref}
+    data-sidebar="menu-item"
+    className={cn("group/menu-item relative", className)}
+    {...props}
+  />
+))
+SidebarMenuItem.displayName = "SidebarMenuItem"
+
+const sidebarMenuButtonVariants = cva(
+  "peer/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm outline-none ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-[[data-sidebar=menu-action]]/menu-item:pr-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[active=true]:bg-sidebar-accent data-[active=true]:font-medium data-[active=true]:text-sidebar-accent-foreground data-[state=open]:hover:bg-sidebar-accent data-[state=open]:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:!size-8 group-data-[collapsible=icon]:!p-2 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0",
+  {
+    variants: {
+      variant: {
+        default: "hover:bg-sidebar-accent hover:text-sidebar-accent-foreground",
+        outline:
+          "bg-background shadow-[0_0_0_1px_hsl(var(--sidebar-border))] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_hsl(var(--sidebar-accent))]",
+      },
+      size: {
+        default: "h-8 text-sm",
+        sm: "h-7 text-xs",
+        lg: "h-12 text-sm group-data-[collapsible=icon]:!p-0",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+const SidebarMenuButton = React.forwardRef<
+  HTMLButtonElement,
+  React.ComponentProps<"button"> & {
+    asChild?: boolean
+    isActive?: boolean
+    tooltip?: string | React.ComponentProps<typeof TooltipContent>
+  } & VariantProps<typeof sidebarMenuButtonVariants>
+>(
+  (
+    {
+      asChild = false,
+      isActive = false,
+      variant = "default",
+      size = "default",
+      tooltip,
+      className,
+      ...props
+    },
+    ref
+  ) => {
+    const Comp = asChild ? Slot : "button"
+    const { isMobile, state } = useSidebar()
+
+    const button = (
+      <Comp
+        ref={ref}
+        data-sidebar="menu-button"
+        data-size={size}
+        data-active={isActive}
+        className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
+        {...props}
+      />
+    )
+
+    if (!tooltip) {
+      return button
+    }
+
+    if (typeof tooltip === "string") {
+      tooltip = {
+        children: tooltip,
+      }
+    }
+
+    return (
+      <Tooltip>
+        <TooltipTrigger asChild>{button}</TooltipTrigger>
+        <TooltipContent
+          side="right"
+          align="center"
+          hidden={state !== "collapsed" || isMobile}
+          {...tooltip}
+        />
+      </Tooltip>
+    )
+  }
+)
+SidebarMenuButton.displayName = "SidebarMenuButton"
+
+const SidebarMenuAction = React.forwardRef<
+  HTMLButtonElement,
+  React.ComponentProps<"button"> & {
+    asChild?: boolean
+    showOnHover?: boolean
+  }
+>(({ className, asChild = false, showOnHover = false, ...props }, ref) => {
+  const Comp = asChild ? Slot : "button"
+
+  return (
+    <Comp
+      ref={ref}
+      data-sidebar="menu-action"
+      className={cn(
+        "absolute right-1 top-1.5 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground outline-none ring-sidebar-ring transition-transform hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 peer-hover/menu-button:text-sidebar-accent-foreground [&>svg]:size-4 [&>svg]:shrink-0",
+        // Increases the hit area of the button on mobile.
+        "after:absolute after:-inset-2 after:md:hidden",
+        "peer-data-[size=sm]/menu-button:top-1",
+        "peer-data-[size=default]/menu-button:top-1.5",
+        "peer-data-[size=lg]/menu-button:top-2.5",
+        "group-data-[collapsible=icon]:hidden",
+        showOnHover &&
+          "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 data-[state=open]:opacity-100 peer-data-[active=true]/menu-button:text-sidebar-accent-foreground md:opacity-0",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarMenuAction.displayName = "SidebarMenuAction"
+
+const SidebarMenuBadge = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div">
+>(({ className, ...props }, ref) => (
+  <div
+    ref={ref}
+    data-sidebar="menu-badge"
+    className={cn(
+      "pointer-events-none absolute right-1 flex h-5 min-w-5 select-none items-center justify-center rounded-md px-1 text-xs font-medium tabular-nums text-sidebar-foreground",
+      "peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[active=true]/menu-button:text-sidebar-accent-foreground",
+      "peer-data-[size=sm]/menu-button:top-1",
+      "peer-data-[size=default]/menu-button:top-1.5",
+      "peer-data-[size=lg]/menu-button:top-2.5",
+      "group-data-[collapsible=icon]:hidden",
+      className
+    )}
+    {...props}
+  />
+))
+SidebarMenuBadge.displayName = "SidebarMenuBadge"
+
+const SidebarMenuSkeleton = React.forwardRef<
+  HTMLDivElement,
+  React.ComponentProps<"div"> & {
+    showIcon?: boolean
+  }
+>(({ className, showIcon = false, ...props }, ref) => {
+  // Random width between 50 to 90%.
+  const width = React.useMemo(() => {
+    return `${Math.floor(Math.random() * 40) + 50}%`
+  }, [])
+
+  return (
+    <div
+      ref={ref}
+      data-sidebar="menu-skeleton"
+      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
+      {...props}
+    >
+      {showIcon && (
+        <Skeleton
+          className="size-4 rounded-md"
+          data-sidebar="menu-skeleton-icon"
+        />
+      )}
+      <Skeleton
+        className="h-4 max-w-[--skeleton-width] flex-1"
+        data-sidebar="menu-skeleton-text"
+        style={
+          {
+            "--skeleton-width": width,
+          } as React.CSSProperties
+        }
+      />
+    </div>
+  )
+})
+SidebarMenuSkeleton.displayName = "SidebarMenuSkeleton"
+
+const SidebarMenuSub = React.forwardRef<
+  HTMLUListElement,
+  React.ComponentProps<"ul">
+>(({ className, ...props }, ref) => (
+  <ul
+    ref={ref}
+    data-sidebar="menu-sub"
+    className={cn(
+      "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5",
+      "group-data-[collapsible=icon]:hidden",
+      className
+    )}
+    {...props}
+  />
+))
+SidebarMenuSub.displayName = "SidebarMenuSub"
+
+const SidebarMenuSubItem = React.forwardRef<
+  HTMLLIElement,
+  React.ComponentProps<"li">
+>(({ ...props }, ref) => <li ref={ref} {...props} />)
+SidebarMenuSubItem.displayName = "SidebarMenuSubItem"
+
+const SidebarMenuSubButton = React.forwardRef<
+  HTMLAnchorElement,
+  React.ComponentProps<"a"> & {
+    asChild?: boolean
+    size?: "sm" | "md"
+    isActive?: boolean
+  }
+>(({ asChild = false, size = "md", isActive, className, ...props }, ref) => {
+  const Comp = asChild ? Slot : "a"
+
+  return (
+    <Comp
+      ref={ref}
+      data-sidebar="menu-sub-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(
+        "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground outline-none ring-sidebar-ring hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
+        "data-[active=true]:bg-sidebar-accent data-[active=true]:text-sidebar-accent-foreground",
+        size === "sm" && "text-xs",
+        size === "md" && "text-sm",
+        "group-data-[collapsible=icon]:hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+})
+SidebarMenuSubButton.displayName = "SidebarMenuSubButton"
+
+export {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupAction,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarHeader,
+  SidebarInput,
+  SidebarInset,
+  SidebarMenu,
+  SidebarMenuAction,
+  SidebarMenuBadge,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarMenuSkeleton,
+  SidebarMenuSub,
+  SidebarMenuSubButton,
+  SidebarMenuSubItem,
+  SidebarProvider,
+  SidebarRail,
+  SidebarSeparator,
+  SidebarTrigger,
+  useSidebar,
+}

frontend/src/components/ui/skeleton.tsx

@@ -1,4 +1,4 @@
-import { cn } from "@/lib/utils";
+import { cn } from "@/lib/utils"
 
 function Skeleton({
   className,
@@ -6,10 +6,10 @@ function Skeleton({
 }: React.HTMLAttributes<HTMLDivElement>) {
   return (
     <div
-      className={cn("animate-pulse rounded-md bg-muted", className)}
+      className={cn("animate-pulse rounded-md bg-primary/10", className)}
       {...props}
     />
-  );
+  )
 }
 
-export { Skeleton };
+export { Skeleton }

frontend/src/components/ui/tooltip.tsx

@@ -0,0 +1,30 @@
+import * as React from "react"
+import * as TooltipPrimitive from "@radix-ui/react-tooltip"
+
+import { cn } from "@/lib/utils"
+
+const TooltipProvider = TooltipPrimitive.Provider
+
+const Tooltip = TooltipPrimitive.Root
+
+const TooltipTrigger = TooltipPrimitive.Trigger
+
+const TooltipContent = React.forwardRef<
+  React.ElementRef<typeof TooltipPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof TooltipPrimitive.Content>
+>(({ className, sideOffset = 4, ...props }, ref) => (
+  <TooltipPrimitive.Portal>
+    <TooltipPrimitive.Content
+      ref={ref}
+      sideOffset={sideOffset}
+      className={cn(
+        "z-50 overflow-hidden rounded-md bg-primary px-3 py-1.5 text-xs text-primary-foreground animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-tooltip-content-transform-origin]",
+        className
+      )}
+      {...props}
+    />
+  </TooltipPrimitive.Portal>
+))
+TooltipContent.displayName = TooltipPrimitive.Content.displayName
+
+export { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider }

frontend/src/hooks/use-mobile.tsx

@@ -0,0 +1,19 @@
+import * as React from "react"
+
+const MOBILE_BREAKPOINT = 768
+
+export function useIsMobile() {
+  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(undefined)
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
+    const onChange = () => {
+      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
+    }
+    mql.addEventListener("change", onChange)
+    setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
+    return () => mql.removeEventListener("change", onChange)
+  }, [])
+
+  return !!isMobile
+}

frontend/src/index.css

@@ -35,6 +35,14 @@
     --safe-area-inset-right: env(safe-area-inset-right, 0px);
     --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
     --safe-area-inset-left: env(safe-area-inset-left, 0px);
+    --sidebar-background: 0 0% 98%;
+    --sidebar-foreground: 240 5.3% 26.1%;
+    --sidebar-primary: 240 5.9% 10%;
+    --sidebar-primary-foreground: 0 0% 98%;
+    --sidebar-accent: 240 4.8% 95.9%;
+    --sidebar-accent-foreground: 240 5.9% 10%;
+    --sidebar-border: 220 13% 91%;
+    --sidebar-ring: 217.2 91.2% 59.8%;
   }
   .dark {
     --background: 222.2 84% 4.9%;
@@ -61,6 +69,14 @@
     --chart-3: 30 80% 55%;
     --chart-4: 280 65% 60%;
     --chart-5: 340 75% 55%;
+    --sidebar-background: 240 5.9% 10%;
+    --sidebar-foreground: 240 4.8% 95.9%;
+    --sidebar-primary: 224.3 76.3% 48%;
+    --sidebar-primary-foreground: 0 0% 100%;
+    --sidebar-accent: 240 3.7% 15.9%;
+    --sidebar-accent-foreground: 240 4.8% 95.9%;
+    --sidebar-border: 240 3.7% 15.9%;
+    --sidebar-ring: 217.2 91.2% 59.8%;
   }
 }
 

frontend/src/routes/__root.tsx

@@ -1,12 +1,14 @@
 import { createRootRoute, Outlet } from "@tanstack/react-router";
-import { useState } from "react";
-import Sidebar from "../components/Sidebar";
-import Header from "../components/Header";
+import { AppSidebar } from "../components/AppSidebar";
+import { SiteHeader } from "../components/SiteHeader";
 import { PWAInstallPrompt, PWAUpdatePrompt } from "../components/PWAPrompts";
 import { usePWA } from "../hooks/usePWA";
+import {
+  SidebarInset,
+  SidebarProvider,
+} from "../components/ui/sidebar";
 
 function RootLayout() {
-  const [sidebarOpen, setSidebarOpen] = useState(false);
   const { updateAvailable, updateSW } = usePWA();
 
   const handlePWAInstall = () => {
@@ -23,23 +25,21 @@ function RootLayout() {
   };
 
   return (
-    <div className="flex min-h-screen bg-background">
-      <Sidebar sidebarOpen={sidebarOpen} setSidebarOpen={setSidebarOpen} />
-
-      {/* Mobile overlay */}
-      {sidebarOpen && (
-        <div
-          className="fixed inset-0 z-40 bg-black/50 lg:hidden"
-          onClick={() => setSidebarOpen(false)}
-        />
-      )}
-
-      <div className="flex flex-col flex-1 min-w-0">
-        <Header setSidebarOpen={setSidebarOpen} />
+    <SidebarProvider
+      style={
+        {
+          "--sidebar-width": "16rem",
+          "--header-height": "4rem",
+        } as React.CSSProperties
+      }
+    >
+      <AppSidebar />
+      <SidebarInset>
+        <SiteHeader />
         <main className="flex-1 p-6 min-w-0">
           <Outlet />
         </main>
-      </div>
+      </SidebarInset>
 
       {/* PWA Prompts */}
       <PWAInstallPrompt onInstall={handlePWAInstall} />
@@ -47,7 +47,7 @@ function RootLayout() {
         updateAvailable={updateAvailable}
         onUpdate={handlePWAUpdate}
       />
-    </div>
+    </SidebarProvider>
   );
 }