diff --git a/app/components/home/bottom-nav.tsx b/app/components/home/bottom-nav.tsx
index 8aacbb4..50f1262 100644
--- a/app/components/home/bottom-nav.tsx
+++ b/app/components/home/bottom-nav.tsx
@@ -1,55 +1,47 @@
-import { Star, User, Users } from "lucide-react"
-import { cn } from "~/lib/utils"
+import { CalendarClock, NotebookTabs, User, Utensils } from "lucide-react";
+import { Link } from "react-router";
+import {
+  NavigationMenu,
+  NavigationMenuItem,
+  NavigationMenuLink,
+  NavigationMenuList,
+  navigationMenuTriggerStyle,
+} from "~/components/ui/navigation-menu";
+import { cn } from "~/lib/utils";
 
-interface BottomNavigationProps {
-  activeTab: string
-  onTabChange: (tab: string) => void
-  favoriteCount: number
-}
+const navigationMenuItems = [
+  { title: "Colles", id: "colles", href: "/", icon: CalendarClock },
+  { title: "Repas", id: "repas", href: "/repas", icon: Utensils },
+  { title: "Notes", id: "grades", href: "/grades", icon: NotebookTabs },
+  { title: "Profil", id: "settings", href: "/settings", icon: User },
+];
 
-export default function BottomNavigation({ activeTab, onTabChange, favoriteCount }: BottomNavigationProps) {
+export default function BottomNavigation({ activeId }: { activeId: string }) {
   return (
     <div className="fixed bottom-0 left-0 right-0 bg-background border-t border-border md:hidden z-50">
-      <div className="flex items-center justify-around h-16">
-        <button
-          onClick={() => onTabChange("you")}
-          className={cn(
-            "flex flex-col items-center justify-center w-full h-full",
-            activeTab === "you" ? "text-primary" : "text-muted-foreground",
-          )}
-        >
-          <div className="flex items-center gap-1">
-            <User className="h-4 w-4" />
-            <span className="text-xs font-medium">Vos colles</span>
-          </div>
-        </button>
-
-        <button
-          onClick={() => onTabChange("favorites")}
-          className={cn(
-            "flex flex-col items-center justify-center w-full h-full gap-1",
-            activeTab === "favorites" ? "text-primary" : "text-muted-foreground",
-          )}
-        >
-          <div className="flex items-center gap-1">
-            <Star className="h-4 w-4" />
-            <span className="text-xs font-medium">Vos favoris ({favoriteCount})</span>
-          </div>
-        </button>
-
-        <button
-          onClick={() => onTabChange("class")}
-          className={cn(
-            "flex flex-col items-center justify-center w-full h-full",
-            activeTab === "class" ? "text-primary" : "text-muted-foreground",
-          )}
-        >
-          <div className="flex items-center gap-1">
-            <Users className="h-4 w-4" />
-            <span className="text-xs font-medium">Votre classe</span>
-          </div>
-        </button>
+      <div className="flex items-center justify-center">
+        <NavigationMenu>
+          <NavigationMenuList>
+            {navigationMenuItems.map((item) => (
+              <NavigationMenuItem key={item.title}>
+                <NavigationMenuLink
+                  className={cn(
+                    navigationMenuTriggerStyle(),
+                    "flex flex-col h-auto items-center px-5 py-2.5"
+                  )}
+                  active={item.id === activeId}
+                  asChild
+                >
+                  <Link to={item.href}>
+                    <item.icon className="mb-1.5 h-5 w-5" />
+                    {item.title}
+                  </Link>
+                </NavigationMenuLink>
+              </NavigationMenuItem>
+            ))}
+          </NavigationMenuList>
+        </NavigationMenu>
       </div>
     </div>
-  )
+  );
 }
diff --git a/app/components/home/index.tsx b/app/components/home/index.tsx
index 8ff2403..b38627d 100644
--- a/app/components/home/index.tsx
+++ b/app/components/home/index.tsx
@@ -320,12 +320,7 @@ export default function Home() {
       )}
 
       {/* Bottom Navigation for Mobile */}
-      <BottomNavigation
-        activeTab={activeTab}
-        onTabChange={setActiveTab}
-        // TODO: Implement favorite count
-        favoriteCount={0}
-      />
+      <BottomNavigation activeId="colles" />
     </div>
   );
 }
diff --git a/app/components/ui/navigation-menu.tsx b/app/components/ui/navigation-menu.tsx
new file mode 100644
index 0000000..a9fd20f
--- /dev/null
+++ b/app/components/ui/navigation-menu.tsx
@@ -0,0 +1,168 @@
+import * as React from "react";
+import * as NavigationMenuPrimitive from "@radix-ui/react-navigation-menu";
+import { cva } from "class-variance-authority";
+import { ChevronDownIcon } from "lucide-react";
+
+import { cn } from "~/lib/utils";
+
+function NavigationMenu({
+  className,
+  children,
+  viewport = true,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Root> & {
+  viewport?: boolean;
+}) {
+  return (
+    <NavigationMenuPrimitive.Root
+      data-slot="navigation-menu"
+      data-viewport={viewport}
+      className={cn(
+        "group/navigation-menu relative flex max-w-max flex-1 items-center justify-center",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      {viewport && <NavigationMenuViewport />}
+    </NavigationMenuPrimitive.Root>
+  );
+}
+
+function NavigationMenuList({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.List>) {
+  return (
+    <NavigationMenuPrimitive.List
+      data-slot="navigation-menu-list"
+      className={cn(
+        "group flex flex-1 list-none items-center justify-center gap-1",
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function NavigationMenuItem({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Item>) {
+  return (
+    <NavigationMenuPrimitive.Item
+      data-slot="navigation-menu-item"
+      className={cn("relative", className)}
+      {...props}
+    />
+  );
+}
+
+const navigationMenuTriggerStyle = cva(
+  "group inline-flex h-9 w-max items-center justify-center rounded-md bg-background px-4 py-2 text-sm font-medium hover:bg-accent hover:text-accent-foreground focus:bg-accent focus:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 data-[state=open]:hover:bg-accent data-[state=open]:text-accent-foreground data-[state=open]:focus:bg-accent data-[state=open]:bg-accent/50 focus-visible:ring-ring/50 outline-none transition-[color,box-shadow] focus-visible:ring-[3px] focus-visible:outline-1"
+);
+
+function NavigationMenuTrigger({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Trigger>) {
+  return (
+    <NavigationMenuPrimitive.Trigger
+      data-slot="navigation-menu-trigger"
+      className={cn(navigationMenuTriggerStyle(), "group", className)}
+      {...props}
+    >
+      {children}{" "}
+      <ChevronDownIcon
+        className="relative top-[1px] ml-1 size-3 transition duration-300 group-data-[state=open]:rotate-180"
+        aria-hidden="true"
+      />
+    </NavigationMenuPrimitive.Trigger>
+  );
+}
+
+function NavigationMenuContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Content>) {
+  return (
+    <NavigationMenuPrimitive.Content
+      data-slot="navigation-menu-content"
+      className={cn(
+        "data-[motion^=from-]:animate-in data-[motion^=to-]:animate-out data-[motion^=from-]:fade-in data-[motion^=to-]:fade-out data-[motion=from-end]:slide-in-from-right-52 data-[motion=from-start]:slide-in-from-left-52 data-[motion=to-end]:slide-out-to-right-52 data-[motion=to-start]:slide-out-to-left-52 top-0 left-0 w-full p-2 pr-2.5 md:absolute md:w-auto",
+        "group-data-[viewport=false]/navigation-menu:bg-popover group-data-[viewport=false]/navigation-menu:text-popover-foreground group-data-[viewport=false]/navigation-menu:data-[state=open]:animate-in group-data-[viewport=false]/navigation-menu:data-[state=closed]:animate-out group-data-[viewport=false]/navigation-menu:data-[state=closed]:zoom-out-95 group-data-[viewport=false]/navigation-menu:data-[state=open]:zoom-in-95 group-data-[viewport=false]/navigation-menu:data-[state=open]:fade-in-0 group-data-[viewport=false]/navigation-menu:data-[state=closed]:fade-out-0 group-data-[viewport=false]/navigation-menu:top-full group-data-[viewport=false]/navigation-menu:mt-1.5 group-data-[viewport=false]/navigation-menu:overflow-hidden group-data-[viewport=false]/navigation-menu:rounded-md group-data-[viewport=false]/navigation-menu:border group-data-[viewport=false]/navigation-menu:shadow group-data-[viewport=false]/navigation-menu:duration-200 **:data-[slot=navigation-menu-link]:focus:ring-0 **:data-[slot=navigation-menu-link]:focus:outline-none",
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function NavigationMenuViewport({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Viewport>) {
+  return (
+    <div
+      className={cn(
+        "absolute top-full left-0 isolate z-50 flex justify-center"
+      )}
+    >
+      <NavigationMenuPrimitive.Viewport
+        data-slot="navigation-menu-viewport"
+        className={cn(
+          "origin-top-center bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-90 relative mt-1.5 h-[var(--radix-navigation-menu-viewport-height)] w-full overflow-hidden rounded-md border shadow md:w-[var(--radix-navigation-menu-viewport-width)]",
+          className
+        )}
+        {...props}
+      />
+    </div>
+  );
+}
+
+function NavigationMenuLink({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Link>) {
+  return (
+    <NavigationMenuPrimitive.Link
+      data-slot="navigation-menu-link"
+      className={cn(
+        "data-[active=true]:focus:bg-accent data-[active=true]:hover:bg-accent data-[active=true]:bg-accent/50 data-[active=true]:text-accent-foreground hover:bg-accent hover:text-accent-foreground focus:bg-accent focus:text-accent-foreground focus-visible:ring-ring/50 [&_svg:not([class*='text-'])]:text-muted-foreground flex flex-col gap-1 rounded-sm p-2 text-sm transition-all outline-none focus-visible:ring-[3px] focus-visible:outline-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  );
+}
+
+function NavigationMenuIndicator({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Indicator>) {
+  return (
+    <NavigationMenuPrimitive.Indicator
+      data-slot="navigation-menu-indicator"
+      className={cn(
+        "data-[state=visible]:animate-in data-[state=hidden]:animate-out data-[state=hidden]:fade-out data-[state=visible]:fade-in top-full z-[1] flex h-1.5 items-end justify-center overflow-hidden",
+        className
+      )}
+      {...props}
+    >
+      <div className="bg-border relative top-[60%] h-2 w-2 rotate-45 rounded-tl-sm shadow-md" />
+    </NavigationMenuPrimitive.Indicator>
+  );
+}
+
+export {
+  NavigationMenu,
+  NavigationMenuList,
+  NavigationMenuItem,
+  NavigationMenuContent,
+  NavigationMenuTrigger,
+  NavigationMenuLink,
+  NavigationMenuIndicator,
+  NavigationMenuViewport,
+  navigationMenuTriggerStyle,
+};
diff --git a/app/lib/api.ts b/app/lib/api.ts
index 0668930..cb25712 100644
--- a/app/lib/api.ts
+++ b/app/lib/api.ts
@@ -187,9 +187,7 @@ export const useColles = (startDate: DateTime) => {
         gcTime: 0,
       }
     : {
-        staleTime: Duration.fromObject({
-          minutes: 5, // 5 minutes
-        }).toMillis(),
+        staleTime: 0,
         gcTime: Duration.fromObject({
           days: 3, // 3 days
         }).toMillis(),
diff --git a/package.json b/package.json
index 71bcfea..1a335bc 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "@radix-ui/react-dialog": "^1.1.14",
     "@radix-ui/react-dropdown-menu": "^2.1.15",
     "@radix-ui/react-label": "^2.1.6",
+    "@radix-ui/react-navigation-menu": "^1.2.14",
     "@radix-ui/react-popover": "^1.1.14",
     "@radix-ui/react-select": "^2.2.5",
     "@radix-ui/react-separator": "^1.1.7",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 8b13bc4..e50b2bb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -26,6 +26,9 @@ importers:
       '@radix-ui/react-label':
         specifier: ^2.1.6
         version: 2.1.7(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      '@radix-ui/react-navigation-menu':
+        specifier: ^1.2.14
+        version: 1.2.14(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
       '@radix-ui/react-popover':
         specifier: ^1.1.14
         version: 1.1.14(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
@@ -1639,6 +1642,9 @@ packages:
   '@radix-ui/primitive@1.1.2':
     resolution: {integrity: sha512-XnbHrrprsNqZKQhStrSwgRUQzoCI1glLzdw79xiZPoofhGICeZRSQ3dIxAKH1gb3OHfNf4d6f+vAv3kil2eggA==}
 
+  '@radix-ui/primitive@1.1.3':
+    resolution: {integrity: sha512-JTF99U/6XIjCBo0wqkU5sK10glYe27MRRsfwoiq5zzOEZLHU3A3KCMa5X/azekYRCJ0HlwI0crAXS/5dEHTzDg==}
+
   '@radix-ui/react-arrow@1.1.7':
     resolution: {integrity: sha512-F+M1tLhO+mlQaOWspE8Wstg+z6PwxwRd8oQ8IXceWz92kfAmalTRf0EjrouQeo7QssEPfCn05B4Ihs1K9WQ/7w==}
     peerDependencies:
@@ -1744,6 +1750,19 @@ packages:
       '@types/react-dom':
         optional: true
 
+  '@radix-ui/react-dismissable-layer@1.1.11':
+    resolution: {integrity: sha512-Nqcp+t5cTB8BinFkZgXiMJniQH0PsUt2k51FUhbdfeKvc4ACcG2uQniY/8+h1Yv6Kza4Q7lD7PQV0z0oicE0Mg==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
   '@radix-ui/react-dropdown-menu@2.1.15':
     resolution: {integrity: sha512-mIBnOjgwo9AH3FyKaSWoSu/dYj6VdhJ7frEPiGTeXCdUFHjl9h3mFh2wwhEtINOmYXWhdpf1rY2minFsmaNgVQ==}
     peerDependencies:
@@ -1814,6 +1833,19 @@ packages:
       '@types/react-dom':
         optional: true
 
+  '@radix-ui/react-navigation-menu@1.2.14':
+    resolution: {integrity: sha512-YB9mTFQvCOAQMHU+C/jVl96WmuWeltyUEpRJJky51huhds5W2FQr1J8D/16sQlf0ozxkPK8uF3niQMdUwZPv5w==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
   '@radix-ui/react-popover@1.1.14':
     resolution: {integrity: sha512-ODz16+1iIbGUfFEfKx2HTPKizg2MN39uIOV8MXeHnmdd3i/N9Wt7vU46wbHsqA0xoaQyXVcs0KIlBdOA2Y95bw==}
     peerDependencies:
@@ -1866,6 +1898,19 @@ packages:
       '@types/react-dom':
         optional: true
 
+  '@radix-ui/react-presence@1.1.5':
+    resolution: {integrity: sha512-/jfEwNDdQVBCNvjkGit4h6pMOzq8bHkopq458dPt2lMjx+eBQUohZNG9A7DtO/O5ukSbxuaNGXMjHicgwy6rQQ==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
   '@radix-ui/react-primitive@2.1.3':
     resolution: {integrity: sha512-m9gTwRkhy2lvCPe6QJp4d3G1TYEUHn/FzJUtq9MjH46an1wJU+GdoGC5VLof8RX8Ft/DlpshApkhswDLZzHIcQ==}
     peerDependencies:
@@ -8119,6 +8164,8 @@ snapshots:
 
   '@radix-ui/primitive@1.1.2': {}
 
+  '@radix-ui/primitive@1.1.3': {}
+
   '@radix-ui/react-arrow@1.1.7(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
     dependencies:
       '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
@@ -8222,6 +8269,19 @@ snapshots:
       '@types/react': 19.1.8
       '@types/react-dom': 19.1.6(@types/react@19.1.8)
 
+  '@radix-ui/react-dismissable-layer@1.1.11(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
+    dependencies:
+      '@radix-ui/primitive': 1.1.3
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      '@radix-ui/react-use-callback-ref': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-use-escape-keydown': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      react: 19.1.1
+      react-dom: 19.1.1(react@19.1.1)
+    optionalDependencies:
+      '@types/react': 19.1.8
+      '@types/react-dom': 19.1.6(@types/react@19.1.8)
+
   '@radix-ui/react-dropdown-menu@2.1.15(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
     dependencies:
       '@radix-ui/primitive': 1.1.2
@@ -8296,6 +8356,28 @@ snapshots:
       '@types/react': 19.1.8
       '@types/react-dom': 19.1.6(@types/react@19.1.8)
 
+  '@radix-ui/react-navigation-menu@1.2.14(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
+    dependencies:
+      '@radix-ui/primitive': 1.1.3
+      '@radix-ui/react-collection': 1.1.7(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-context': 1.1.2(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-direction': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-dismissable-layer': 1.1.11(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      '@radix-ui/react-id': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-presence': 1.1.5(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      '@radix-ui/react-use-callback-ref': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-use-controllable-state': 1.2.2(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-use-previous': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-visually-hidden': 1.2.3(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)
+      react: 19.1.1
+      react-dom: 19.1.1(react@19.1.1)
+    optionalDependencies:
+      '@types/react': 19.1.8
+      '@types/react-dom': 19.1.6(@types/react@19.1.8)
+
   '@radix-ui/react-popover@1.1.14(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
     dependencies:
       '@radix-ui/primitive': 1.1.2
@@ -8357,6 +8439,16 @@ snapshots:
       '@types/react': 19.1.8
       '@types/react-dom': 19.1.6(@types/react@19.1.8)
 
+  '@radix-ui/react-presence@1.1.5(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.1.8)(react@19.1.1)
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.1.8)(react@19.1.1)
+      react: 19.1.1
+      react-dom: 19.1.1(react@19.1.1)
+    optionalDependencies:
+      '@types/react': 19.1.8
+      '@types/react-dom': 19.1.6(@types/react@19.1.8)
+
   '@radix-ui/react-primitive@2.1.3(@types/react-dom@19.1.6(@types/react@19.1.8))(@types/react@19.1.8)(react-dom@19.1.1(react@19.1.1))(react@19.1.1)':
     dependencies:
       '@radix-ui/react-slot': 1.2.3(@types/react@19.1.8)(react@19.1.1)