diff --git a/src/lib/components/ui/navigation-menu/index.ts b/src/lib/components/ui/navigation-menu/index.ts
new file mode 100644
index 0000000..bbc250f
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/index.ts
@@ -0,0 +1,28 @@
+import Root from "./navigation-menu.svelte";
+import Content from "./navigation-menu-content.svelte";
+import Indicator from "./navigation-menu-indicator.svelte";
+import Item from "./navigation-menu-item.svelte";
+import Link from "./navigation-menu-link.svelte";
+import List from "./navigation-menu-list.svelte";
+import Trigger from "./navigation-menu-trigger.svelte";
+import Viewport from "./navigation-menu-viewport.svelte";
+
+export {
+	Root,
+	Content,
+	Indicator,
+	Item,
+	Link,
+	List,
+	Trigger,
+	Viewport,
+	//
+	Root as NavigationMenuRoot,
+	Content as NavigationMenuContent,
+	Indicator as NavigationMenuIndicator,
+	Item as NavigationMenuItem,
+	Link as NavigationMenuLink,
+	List as NavigationMenuList,
+	Trigger as NavigationMenuTrigger,
+	Viewport as NavigationMenuViewport,
+};
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-content.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-content.svelte
new file mode 100644
index 0000000..9dbdb36
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-content.svelte
@@ -0,0 +1,21 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.ContentProps = $props();
+</script>
+
+<NavigationMenuPrimitive.Content
+	bind:ref
+	data-slot="navigation-menu-content"
+	class={cn(
+		"data-[motion^=from-]:animate-in data-[motion^=to-]:animate-out data-[motion^=from-]:fade-in data-[motion^=to-]:fade-out data-[motion=from-end]:slide-in-from-right-52 data-[motion=from-start]:slide-in-from-left-52 data-[motion=to-end]:slide-out-to-right-52 data-[motion=to-start]:slide-out-to-left-52 left-0 top-0 w-full md:absolute md:w-auto",
+		"group-data-[viewport=false]/navigation-menu:bg-popover group-data-[viewport=false]/navigation-menu:text-popover-foreground group-data-[viewport=false]/navigation-menu:data-[state=open]:animate-in group-data-[viewport=false]/navigation-menu:data-[state=closed]:animate-out group-data-[viewport=false]/navigation-menu:data-[state=closed]:zoom-out-95 group-data-[viewport=false]/navigation-menu:data-[state=open]:zoom-in-95 group-data-[viewport=false]/navigation-menu:data-[state=open]:fade-in-0 group-data-[viewport=false]/navigation-menu:data-[state=closed]:fade-out-0 **:data-[slot=navigation-menu-link]:focus:ring-0 **:data-[slot=navigation-menu-link]:focus:outline-none group-data-[viewport=false]/navigation-menu:top-full group-data-[viewport=false]/navigation-menu:mt-1.5 group-data-[viewport=false]/navigation-menu:overflow-hidden group-data-[viewport=false]/navigation-menu:rounded-md group-data-[viewport=false]/navigation-menu:border group-data-[viewport=false]/navigation-menu:shadow group-data-[viewport=false]/navigation-menu:duration-200",
+		className
+	)}
+	{...restProps}
+/>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-indicator.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-indicator.svelte
new file mode 100644
index 0000000..6c9bdfd
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-indicator.svelte
@@ -0,0 +1,22 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.IndicatorProps = $props();
+</script>
+
+<NavigationMenuPrimitive.Indicator
+	bind:ref
+	data-slot="navigation-menu-indicator"
+	class={cn(
+		"data-[state=visible]:animate-in data-[state=hidden]:animate-out data-[state=hidden]:fade-out data-[state=visible]:fade-in top-full z-[1] flex h-1.5 items-end justify-center overflow-hidden",
+		className
+	)}
+	{...restProps}
+>
+	<div class="bg-border relative top-[60%] h-2 w-2 rotate-45 rounded-tl-sm shadow-md"></div>
+</NavigationMenuPrimitive.Indicator>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-item.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-item.svelte
new file mode 100644
index 0000000..b00b4b4
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-item.svelte
@@ -0,0 +1,17 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.ItemProps = $props();
+</script>
+
+<NavigationMenuPrimitive.Item
+	bind:ref
+	data-slot="navigation-menu-item"
+	class={cn("relative", className)}
+	{...restProps}
+/>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-link.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-link.svelte
new file mode 100644
index 0000000..867851e
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-link.svelte
@@ -0,0 +1,20 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.LinkProps = $props();
+</script>
+
+<NavigationMenuPrimitive.Link
+	bind:ref
+	data-slot="navigation-menu-link"
+	class={cn(
+		"data-[active=true]:focus:bg-accent data-[active=true]:hover:bg-accent data-[active=true]:bg-accent/50 data-[active=true]:text-accent-foreground hover:bg-accent hover:text-accent-foreground focus:bg-accent focus:text-accent-foreground focus-visible:ring-ring/50 [&_svg:not([class*='text-'])]:text-muted-foreground flex flex-col gap-1 rounded-sm p-2 text-sm outline-none transition-all focus-visible:outline-1 focus-visible:ring-[3px] [&_svg:not([class*='size-'])]:size-4",
+		className
+	)}
+	{...restProps}
+/>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-list.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-list.svelte
new file mode 100644
index 0000000..c2c5880
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-list.svelte
@@ -0,0 +1,17 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.ListProps = $props();
+</script>
+
+<NavigationMenuPrimitive.List
+	bind:ref
+	data-slot="navigation-menu-list"
+	class={cn("group flex flex-1 list-none items-center justify-center gap-1", className)}
+	{...restProps}
+/>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-trigger.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-trigger.svelte
new file mode 100644
index 0000000..aad82a2
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-trigger.svelte
@@ -0,0 +1,34 @@
+<script lang="ts" module>
+	import { cn } from "$lib/utils.js";
+	import { tv } from "tailwind-variants";
+
+	export const navigationMenuTriggerStyle = tv({
+		base: "bg-background hover:bg-accent hover:text-accent-foreground focus:bg-accent focus:text-accent-foreground 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 group inline-flex h-9 w-max items-center justify-center rounded-md px-4 py-2 text-sm font-medium outline-none transition-[color,box-shadow] focus-visible:outline-1 focus-visible:ring-[3px] disabled:pointer-events-none disabled:opacity-50",
+	});
+</script>
+
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import ChevronDownIcon from "@lucide/svelte/icons/chevron-down";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		children,
+		...restProps
+	}: NavigationMenuPrimitive.TriggerProps = $props();
+</script>
+
+<NavigationMenuPrimitive.Trigger
+	bind:ref
+	data-slot="navigation-menu-trigger"
+	class={cn(navigationMenuTriggerStyle(), "group", className)}
+	{...restProps}
+>
+	{@render children?.()}
+
+	<ChevronDownIcon
+		class="relative top-[1px] ml-1 size-3 transition duration-300 group-data-[state=open]:rotate-180"
+		aria-hidden="true"
+	/>
+</NavigationMenuPrimitive.Trigger>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu-viewport.svelte b/src/lib/components/ui/navigation-menu/navigation-menu-viewport.svelte
new file mode 100644
index 0000000..655741d
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu-viewport.svelte
@@ -0,0 +1,22 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: NavigationMenuPrimitive.ViewportProps = $props();
+</script>
+
+<div class={cn("absolute left-0 top-full isolate z-50 flex justify-center")}>
+	<NavigationMenuPrimitive.Viewport
+		bind:ref
+		data-slot="navigation-menu-viewport"
+		class={cn(
+			"origin-top-center bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-90 relative mt-1.5 h-[var(--bits-navigation-menu-viewport-height)] w-full overflow-hidden rounded-md border shadow md:w-[var(--bits-navigation-menu-viewport-width)]",
+			className
+		)}
+		{...restProps}
+	/>
+</div>
diff --git a/src/lib/components/ui/navigation-menu/navigation-menu.svelte b/src/lib/components/ui/navigation-menu/navigation-menu.svelte
new file mode 100644
index 0000000..69c3d13
--- /dev/null
+++ b/src/lib/components/ui/navigation-menu/navigation-menu.svelte
@@ -0,0 +1,32 @@
+<script lang="ts">
+	import { NavigationMenu as NavigationMenuPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+	import NavigationMenuViewport from "./navigation-menu-viewport.svelte";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		viewport = true,
+		children,
+		...restProps
+	}: NavigationMenuPrimitive.RootProps & {
+		viewport?: boolean;
+	} = $props();
+</script>
+
+<NavigationMenuPrimitive.Root
+	bind:ref
+	data-slot="navigation-menu"
+	data-viewport={viewport}
+	class={cn(
+		"group/navigation-menu relative flex max-w-max flex-1 items-center justify-center",
+		className
+	)}
+	{...restProps}
+>
+	{@render children?.()}
+
+	{#if viewport}
+		<NavigationMenuViewport />
+	{/if}
+</NavigationMenuPrimitive.Root>
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 9ceaee3..34d9b39 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -1,7 +1,8 @@
 <script lang="ts">
   import '../app.css';
-  import { Home, FlaskConical } from '@lucide/svelte';
+  import { Home, FlaskConical, Cog } from '@lucide/svelte';
   import { PUBLIC_APP_NAME } from '$env/static/public';
+  import * as NavigationMenu from '$lib/components/ui/navigation-menu/index.js';
 
   let { children } = $props();
 
@@ -17,8 +18,31 @@
       <span class="font-bold">{PUBLIC_APP_NAME || 'Cog Socket App'}</span>
     </a>
     <div class="flex flex-1 items-center justify-end space-x-2">
-      <nav class="flex items-center">
+      <nav class="flex items-center gap-2">
         <!-- Top bar right side elements, e.g., user menu, settings -->
+        <NavigationMenu.Root viewport={false}>
+          <NavigationMenu.List>
+            <NavigationMenu.Item>
+              <NavigationMenu.Trigger>
+                <Cog class="size-5" />
+                <span class="sr-only">Settings</span>
+              </NavigationMenu.Trigger>
+              <NavigationMenu.Content class="right-0 left-auto">
+                <ul class="grid w-[200px] gap-2 p-2">
+                  <li>
+                    <NavigationMenu.Link href="/settings/profile">Profile</NavigationMenu.Link>
+                  </li>
+                  <li>
+                    <NavigationMenu.Link href="/settings">Settings</NavigationMenu.Link>
+                  </li>
+                  <li>
+                    <NavigationMenu.Link href="/settings/subscription">Subscription</NavigationMenu.Link>
+                  </li>
+                </ul>
+              </NavigationMenu.Content>
+            </NavigationMenu.Item>
+          </NavigationMenu.List>
+        </NavigationMenu.Root>
       </nav>
     </div>
   </div>
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 1d02031..b2779f2 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -64,6 +64,8 @@ async function handleSubmit() {
             <TableRow>
               <TableHead>Name</TableHead>
               <TableHead>Description</TableHead>
+              <TableHead>Type</TableHead>
+              <TableHead>Multiplayer</TableHead>
               <TableHead>Created At</TableHead>
               <TableHead>Actions</TableHead>
             </TableRow>
@@ -80,6 +82,8 @@ async function handleSubmit() {
                     <a href={`/experiment/${exp.id}`} class="text-primary underline hover:text-primary/80">{exp.name}</a>
                   </TableCell>
                   <TableCell>{exp.description}</TableCell>
+                  <TableCell>{exp.type}</TableCell>
+                  <TableCell>{exp.multiplayer ? 'Yes' : 'No'}</TableCell>
                   <TableCell>{new Date(exp.createdAt).toLocaleString()}</TableCell>
                   <TableCell>
                     <Button
diff --git a/src/routes/experiment/[id]/+page.svelte b/src/routes/experiment/[id]/+page.svelte
index 2feeef9..2e59743 100644
--- a/src/routes/experiment/[id]/+page.svelte
+++ b/src/routes/experiment/[id]/+page.svelte
@@ -20,6 +20,7 @@ let uploading = false;
 let uploadError = '';
 let copied = false;
 let origin = '';
+let activeTab = 'info';
 
 async function fetchFiles() {
   if (!experimentId) return;
@@ -93,6 +94,35 @@ function buildFileTree(files: any[]): any {
   return root;
 }
 
+function downloadFile(key: string) {
+  // Download file from S3 via API
+  const url = `/api/experiment/${experimentId}/files?key=${encodeURIComponent(key)}&download=1`;
+  fetch(url)
+    .then(res => {
+      if (!res.ok) throw new Error('Failed to download');
+      const disposition = res.headers.get('Content-Disposition');
+      let filename = key.split('/').pop() || 'file';
+      if (disposition) {
+        const match = disposition.match(/filename="?([^";]+)"?/);
+        if (match) filename = match[1];
+      }
+      return res.blob().then(blob => ({ blob, filename }));
+    })
+    .then(({ blob, filename }) => {
+      const url = window.URL.createObjectURL(blob);
+      const a = document.createElement('a');
+      a.href = url;
+      a.download = filename;
+      document.body.appendChild(a);
+      a.click();
+      setTimeout(() => {
+        window.URL.revokeObjectURL(url);
+        a.remove();
+      }, 100);
+    })
+    .catch(() => alert('Failed to download file.'));
+}
+
 let expanded = new Set<string>();
 function toggleFolder(path: string) {
   if (expanded.has(path)) expanded.delete(path);
@@ -157,92 +187,105 @@ async function handleSave() {
 
 {#if experiment}
   <div class="flex flex-col min-h-screen bg-background py-8">
-    <Card class="mb-8 w-full max-w-xl mx-auto">
-      <CardHeader>
-        <CardTitle>Experiment Details</CardTitle>
-      </CardHeader>
-      <CardContent>
-        <div class="mb-4">
-          <Label>ID</Label>
-          <div class="text-sm text-muted-foreground mb-2">{experiment.id}</div>
-        </div>
-        <form on:submit|preventDefault={handleSave} class="space-y-4">
-          <div>
-            <Label for="name">Name</Label>
-            <Input id="name" type="text" bind:value={name} required />
-          </div>
-          <div>
-            <Label for="description">Description</Label>
-            <Input id="description" type="text" bind:value={description} />
-          </div>
-          <div>
-            <Label>Created At</Label>
-            <div class="text-sm text-muted-foreground mb-2">{new Date(experiment.createdAt).toLocaleString()}</div>
-          </div>
-          {#if error}
-            <div class="text-red-500 text-sm">{error}</div>
-          {/if}
-          {#if success}
-            <div class="text-green-600 text-sm">{success}</div>
-          {/if}
-          <Button type="submit">Save Changes</Button>
-        </form>
-      </CardContent>
-    </Card>
-
-    <Card class="mb-8 w-full max-w-xl mx-auto">
-      <CardHeader>
-        <CardTitle>Public Link</CardTitle>
-      </CardHeader>
-      <CardContent>
-        <p class="text-sm text-muted-foreground mb-2">
-          Share this link with your participants to run the experiment.
-        </p>
-        <div class="flex items-center space-x-2">
-          <Input id="public-link" type="text" readonly value="{`${origin}/public/run/${experiment.id}`}" />
-          <Button on:click={copyLink}>Copy</Button>
-        </div>
-        {#if copied}
-          <p class="text-green-600 text-sm mt-2">Copied to clipboard!</p>
-        {/if}
-      </CardContent>
-    </Card>
-    
-    <Card class="w-full max-w-xl mx-auto">
-      <CardHeader>
-        <CardTitle>Experiment Files</CardTitle>
-      </CardHeader>
-      <CardContent>
-        <div class="mt-8">
-          <Label>Experiment Files</Label>
-          <div
-            class="border-2 border-dashed rounded-md p-4 mb-4 text-center cursor-pointer bg-muted hover:bg-accent transition"
-            on:click={() => document.getElementById('file-input')?.click()}
-          >
-            <div>Click to select files or a folder to upload (folder structure will be preserved)</div>
-            <input id="file-input" type="file" multiple webkitdirectory class="hidden" on:change={handleFileInput} />
-          </div>
-          {#if uploading}
-            <div class="text-blue-600 text-sm mb-2">Uploading...</div>
-          {/if}
-          {#if uploadError}
-            <div class="text-red-500 text-sm mb-2">{uploadError}</div>
-          {/if}
-          <ul class="divide-y divide-border">
-            <FileBrowser
-              tree={buildFileTree(files)}
-              parentPath=""
-              {expanded}
-              onToggle={toggleFolder}
-              onDelete={deleteFileOrFolder}
-            />
-            {#if files.length === 0}
-              <li class="text-muted-foreground text-sm py-2">No files uploaded yet.</li>
-            {/if}
-          </ul>
-        </div>
-      </CardContent>
-    </Card>
+    <div class="w-full max-w-xl mx-auto mb-8">
+      <div class="flex border-b mb-4">
+        <button class="px-4 py-2 -mb-px border-b-2 font-medium focus:outline-none transition-colors duration-200" class:!border-primary={activeTab === 'info'} class:border-transparent={activeTab !== 'info'} on:click={() => activeTab = 'info'}>Info</button>
+        <button class="px-4 py-2 -mb-px border-b-2 font-medium focus:outline-none transition-colors duration-200" class:!border-primary={activeTab === 'files'} class:border-transparent={activeTab !== 'files'} on:click={() => activeTab = 'files'}>Files</button>
+      </div>
+      {#if activeTab === 'info'}
+        <Card class="w-full">
+          <CardHeader>
+            <CardTitle>Experiment Details</CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div class="mb-4">
+              <Label>ID</Label>
+              <div class="text-sm text-muted-foreground mb-2">{experiment.id}</div>
+            </div>
+            <div class="mb-4">
+              <Label>Type</Label>
+              <div class="text-sm text-muted-foreground mb-2">{experiment.type}</div>
+            </div>
+            <div class="mb-4">
+              <Label>Multiplayer</Label>
+              <div class="text-sm text-muted-foreground mb-2">{experiment.multiplayer ? 'Yes' : 'No'}</div>
+            </div>
+            <form on:submit|preventDefault={handleSave} class="space-y-4">
+              <div>
+                <Label for="name">Name</Label>
+                <Input id="name" type="text" bind:value={name} required />
+              </div>
+              <div>
+                <Label for="description">Description</Label>
+                <Input id="description" type="text" bind:value={description} />
+              </div>
+              <div>
+                <Label>Created At</Label>
+                <div class="text-sm text-muted-foreground mb-2">{new Date(experiment.createdAt).toLocaleString()}</div>
+              </div>
+              {#if error}
+                <div class="text-red-500 text-sm">{error}</div>
+              {/if}
+              {#if success}
+                <div class="text-green-600 text-sm">{success}</div>
+              {/if}
+              <Button type="submit">Save Changes</Button>
+            </form>
+            <div class="mt-8">
+              <Label>Public Link</Label>
+              <div class="flex items-center space-x-2 mt-2">
+                <Input id="public-link" type="text" readonly value={`${origin}/public/run/${experiment.id}`} />
+                <Button on:click={copyLink}>Copy</Button>
+              </div>
+              {#if copied}
+                <p class="text-green-600 text-sm mt-2">Copied to clipboard!</p>
+              {/if}
+            </div>
+          </CardContent>
+        </Card>
+      {/if}
+      {#if activeTab === 'files'}
+        <Card class="w-full">
+          <CardHeader>
+            <CardTitle>Experiment Files</CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div class="mt-8">
+              <div class="flex justify-end mb-4">
+                <button
+                  type="button"
+                  class="px-4 py-2 rounded bg-primary text-primary-foreground hover:bg-primary/90 transition font-medium"
+                  on:click={() => document.getElementById('file-input')?.click()}
+                >
+                  Upload Files or Folder
+                </button>
+                <input id="file-input" type="file" multiple webkitdirectory class="hidden" on:change={handleFileInput} />
+              </div>
+              {#if uploading}
+                <div class="text-blue-600 text-sm mb-2">Uploading...</div>
+              {/if}
+              {#if uploadError}
+                <div class="text-red-500 text-sm mb-2">{uploadError}</div>
+              {/if}
+              <ul class="divide-y divide-border">
+                <FileBrowser
+                  tree={buildFileTree(files)}
+                  parentPath=""
+                  {expanded}
+                  onToggle={toggleFolder}
+                  onDelete={deleteFileOrFolder}
+                  onDownload={downloadFile}
+                  isRoot={true}
+                />
+                {#if files.length === 0}
+                  <li class="text-muted-foreground text-sm py-2">No files uploaded yet.</li>
+                {/if}
+              </ul>
+            </div>
+          </CardContent>
+        </Card>
+      {/if}
+    </div>
   </div>
 {:else if error}
   <div class="flex justify-center items-center min-h-screen bg-background">
diff --git a/src/routes/experiment/[id]/FileBrowser.svelte b/src/routes/experiment/[id]/FileBrowser.svelte
index 83cfe60..ac01fdb 100644
--- a/src/routes/experiment/[id]/FileBrowser.svelte
+++ b/src/routes/experiment/[id]/FileBrowser.svelte
@@ -1,45 +1,91 @@
 <script lang="ts">
   import { Button } from '$lib/components/ui/button';
-  
+  import FileIcon from '@lucide/svelte/icons/file';
+  import FolderIcon from '@lucide/svelte/icons/folder';
+  import FolderOpenIcon from '@lucide/svelte/icons/folder-open';
+  import TrashIcon from '@lucide/svelte/icons/trash';
+  import DownloadIcon from '@lucide/svelte/icons/download';
+
   export let tree: any;
   export let parentPath = '';
   export let expanded: Set<string>;
   export let onToggle: (path: string) => void;
   export let onDelete: (key: string, isFolder: boolean) => void;
+  export let onDownload: (key: string) => void = () => {};
+  export let isRoot: boolean = false;
 
   function handleToggle(path: string) {
     onToggle(path);
   }
   function handleDelete(key: string, isFolder: boolean) {
-    console.log('FileBrowser handleDelete called:', { key, isFolder });
     onDelete(key, isFolder);
   }
-  
+  function handleDownload(key: string) {
+    onDownload(key);
+  }
   function handleFolderClick(event: Event, path: string) {
     event.stopPropagation();
     handleToggle(path);
   }
-  
   function handleFolderDelete(event: Event, path: string) {
     event.stopPropagation();
-    console.log('FileBrowser handleFolderDelete called:', { path });
     handleDelete(path, true);
   }
+  function formatSize(size: number) {
+    if (!size && size !== 0) return '';
+    if (size < 1024) return `${size} B`;
+    if (size < 1024 * 1024) return `${(size / 1024).toFixed(1)} KB`;
+    if (size < 1024 * 1024 * 1024) return `${(size / 1024 / 1024).toFixed(1)} MB`;
+    return `${(size / 1024 / 1024 / 1024).toFixed(1)} GB`;
+  }
+  function formatDate(date: string | Date) {
+    if (!date) return '';
+    const d = typeof date === 'string' ? new Date(date) : date;
+    return d.toLocaleString();
+  }
 </script>
 
 <ul class="ml-2">
+  {#if isRoot}
+    <li class="flex items-center gap-2 py-1 pl-2 text-xs font-semibold text-muted-foreground select-none border-b border-border mb-1">
+      <span class="flex-1 min-w-0">Name</span>
+      <span class="w-24 text-right">Size</span>
+      <span class="w-40 text-right">Last Uploaded</span>
+      <span class="w-16"></span>
+    </li>
+  {/if}
   {#each Object.entries(tree) as [name, node] (parentPath + '/' + name)}
     {#if (node as any).isFile}
-      <li class="flex items-center justify-between py-1 pl-4">
-        <span>{name} <span class="text-xs text-muted-foreground">({(node as any).size} bytes)</span></span>
-        <Button size="sm" variant="destructive" on:click={() => handleDelete((node as any).key, false)}>Delete</Button>
+      <li class="flex items-center gap-2 py-1 pl-2 hover:bg-accent rounded group text-sm">
+        <span class="flex-1 min-w-0 flex items-center gap-1">
+          <FileIcon class="w-4 h-4 text-muted-foreground shrink-0" />
+          <span class="truncate" title={name || ''}>{name || ''}</span>
+        </span>
+        <span class="w-24 text-xs text-muted-foreground text-right ml-2 whitespace-nowrap">{formatSize((node as any).size)}</span>
+        <span class="w-40 text-xs text-muted-foreground text-right ml-2 whitespace-nowrap">{formatDate((node as any).lastModified)}</span>
+        <span class="w-16 flex items-center justify-end gap-1">
+          <button class="p-1 hover:text-primary" title="Download" on:click={() => handleDownload((node as any).key)}><DownloadIcon class="w-4 h-4" /></button>
+          <button class="p-1 hover:text-destructive" title="Delete" on:click={() => handleDelete((node as any).key, false)}><TrashIcon class="w-4 h-4" /></button>
+        </span>
       </li>
     {:else}
       <li>
-        <div class="flex items-center cursor-pointer" on:click={(e) => handleFolderClick(e, parentPath ? `${parentPath}/${name}` : name)}>
-          <span class="mr-1">{expanded.has(parentPath ? `${parentPath}/${name}` : name) ? '▼' : '▶'}</span>
-          <span class="font-semibold">{name}</span>
-          <Button size="sm" variant="destructive" class="ml-2" on:click={(e) => handleFolderDelete(e, (parentPath ? `${parentPath}/${name}` : name))}>Delete</Button>
+        <div class="flex items-center gap-1 px-1 py-1 hover:bg-accent rounded cursor-pointer text-sm" >
+          <span class="flex-1 min-w-0 flex items-center gap-1" on:click={(e) => handleFolderClick(e, parentPath ? `${parentPath}/${name}` : name)}>
+            <span class="flex-shrink-0 w-5 h-5 flex items-center justify-center">
+              {#if expanded.has(parentPath ? `${parentPath}/${name}` : name)}
+                <FolderOpenIcon class="w-4 h-4 text-muted-foreground" />
+              {:else}
+                <FolderIcon class="w-4 h-4 text-muted-foreground" />
+              {/if}
+            </span>
+            <span class="font-semibold truncate" title={name || ''}>{name || ''}</span>
+          </span>
+          <span class="w-24"></span>
+          <span class="w-40"></span>
+          <span class="w-16 flex items-center justify-end">
+            <button class="p-1 hover:text-destructive" title="Delete folder" on:click={(e) => handleFolderDelete(e, (parentPath ? `${parentPath}/${name}` : name))}><TrashIcon class="w-4 h-4" /></button>
+          </span>
         </div>
         {#if expanded.has(parentPath ? `${parentPath}/${name}` : name)}
           <svelte:self
@@ -48,6 +94,8 @@
             {expanded}
             {onToggle}
             {onDelete}
+            {onDownload}
+            isRoot={false}
           />
         {/if}
       </li>