diff --git a/frontend/public/tailwind.css b/frontend/public/tailwind.css
index 7859045..80bd8ff 100644
--- a/frontend/public/tailwind.css
+++ b/frontend/public/tailwind.css
@@ -613,9 +613,15 @@
   .w-3\/4 {
     width: calc(3/4 * 100%);
   }
+  .w-3\/5 {
+    width: calc(3/5 * 100%);
+  }
   .w-4 {
     width: calc(var(--spacing) * 4);
   }
+  .w-4\/5 {
+    width: calc(4/5 * 100%);
+  }
   .w-5 {
     width: calc(var(--spacing) * 5);
   }
@@ -658,9 +664,15 @@
   .w-48 {
     width: calc(var(--spacing) * 48);
   }
+  .w-56 {
+    width: calc(var(--spacing) * 56);
+  }
   .w-64 {
     width: calc(var(--spacing) * 64);
   }
+  .w-96 {
+    width: calc(var(--spacing) * 96);
+  }
   .w-\[100px\] {
     width: 100px;
   }
@@ -856,6 +868,13 @@
       margin-block-end: calc(calc(var(--spacing) * 2) * calc(1 - var(--tw-space-y-reverse)));
     }
   }
+  .space-y-3 {
+    :where(& > :not(:last-child)) {
+      --tw-space-y-reverse: 0;
+      margin-block-start: calc(calc(var(--spacing) * 3) * var(--tw-space-y-reverse));
+      margin-block-end: calc(calc(var(--spacing) * 3) * calc(1 - var(--tw-space-y-reverse)));
+    }
+  }
   .space-y-4 {
     :where(& > :not(:last-child)) {
       --tw-space-y-reverse: 0;
@@ -952,10 +971,6 @@
     border-style: var(--tw-border-style);
     border-width: 2px;
   }
-  .border-4 {
-    border-style: var(--tw-border-style);
-    border-width: 4px;
-  }
   .border-y {
     border-block-style: var(--tw-border-style);
     border-block-width: 1px;
diff --git a/frontend/src/app.rs b/frontend/src/app.rs
index 2120287..9ebf735 100644
--- a/frontend/src/app.rs
+++ b/frontend/src/app.rs
@@ -8,6 +8,7 @@ use leptos::prelude::*;
 use leptos::task::spawn_local;
 use leptos_router::components::{Router, Routes, Route};
 use leptos_router::hooks::use_navigate;
+use leptos_shadcn_skeleton::Skeleton;
 
 #[component]
 pub fn App() -> impl IntoView {
@@ -116,10 +117,40 @@ pub fn App() -> impl IntoView {
                         
                         view! {
                             <Show when=move || !is_loading.0.get() fallback=|| view! {
-                                <div class="flex items-center justify-center h-screen bg-background">
-                                    <div class="flex flex-col items-center gap-4">
-                                        <div class="animate-spin h-8 w-8 border-4 border-primary border-t-transparent rounded-full"></div>
-                                        <p class="text-sm text-muted-foreground">"Yükleniyor..."</p>
+                                <div class="flex h-screen bg-background">
+                                    // Sidebar skeleton
+                                    <div class="w-56 border-r border-border p-4 space-y-4">
+                                        <Skeleton class="h-8 w-3/4" />
+                                        <div class="space-y-2">
+                                            <Skeleton class="h-6 w-full" />
+                                            <Skeleton class="h-6 w-full" />
+                                            <Skeleton class="h-6 w-4/5" />
+                                            <Skeleton class="h-6 w-full" />
+                                            <Skeleton class="h-6 w-3/5" />
+                                            <Skeleton class="h-6 w-full" />
+                                        </div>
+                                    </div>
+                                    // Main content skeleton
+                                    <div class="flex-1 flex flex-col">
+                                        // Header skeleton
+                                        <div class="border-b border-border p-4 flex items-center gap-4">
+                                            <Skeleton class="h-8 w-48" />
+                                            <Skeleton class="h-8 w-64" />
+                                            <div class="ml-auto"><Skeleton class="h-8 w-24" /></div>
+                                        </div>
+                                        // Table skeleton rows
+                                        <div class="flex-1 p-4 space-y-3">
+                                            <Skeleton class="h-10 w-full" />
+                                            <Skeleton class="h-10 w-full" />
+                                            <Skeleton class="h-10 w-full" />
+                                            <Skeleton class="h-10 w-full" />
+                                            <Skeleton class="h-10 w-full" />
+                                            <Skeleton class="h-10 w-3/4" />
+                                        </div>
+                                        // Status bar skeleton
+                                        <div class="border-t border-border p-3">
+                                            <Skeleton class="h-5 w-96" />
+                                        </div>
                                     </div>
                                 </div>
                             }.into_any()>