diff --git a/src/lib/components/GuideSidebar.svelte b/src/lib/components/GuideSidebar.svelte
index a7a3351..db9eb38 100644
--- a/src/lib/components/GuideSidebar.svelte
+++ b/src/lib/components/GuideSidebar.svelte
@@ -11,25 +11,74 @@
 		{ title: '5. Logistics', href: '/guide/logistics', emoji: '🎉' },
 		{ title: '6. Day of', href: '/guide/day-of', emoji: '🌟' }
 	];
+
+	let isOpen = false;
+
+	function toggleSidebar() {
+		isOpen = !isOpen;
+	}
+
+	function closeSidebar() {
+		isOpen = false;
+	}
 </script>
 
-<nav class="fixed left-0 top-0 w-90 bg-[url('/paper-sidebar.png')] bg-contain bg-repeat-y h-screen p-8 overflow-y-auto">
-	<h3 class="font-serif text-lg mb-4 text-[#8b4513]">Daydream Organizer Guide</h3>
-	<ul class="space-y-1">
-		{#each pages as guideItem}
-			<li>
-				<a 
-					href={guideItem.href}
-					class="block px-4 py-3 mr-8 text-lg rounded-md transition-colors duration-150 opacity-80 {
-						page.url.pathname === guideItem.href
-							? 'hover:bg-[#8b4513]/3' 
-							: 'hover:bg-[#8b4513]/5'
-					}"
-					style={page.url.pathname === guideItem.href ? 'color: #e472ab; font-weight: bold' : 'color: #8b4513;'}
-				>
-					<span class="mr-2">{guideItem.emoji}</span> {guideItem.title}
-				</a>
-			</li>
-		{/each}
-	</ul>
+<!-- Mobile toggle button -->
+<button 
+	on:click={toggleSidebar}
+	class="lg:hidden fixed top-6 right-6 z-50 p-3 bg-[url(/guide/sidebar-button.png)] bg-contain"
+	aria-label="Toggle navigation"
+>
+	<svg class="w-6 h-6 text-[#8b4513]" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+		<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"></path>
+	</svg>
+</button>
+
+<!-- Mobile overlay -->
+<div 
+	class="lg:hidden fixed inset-0 bg-black/20 z-[55] transition-opacity duration-300 pointer-events-none {isOpen ? 'opacity-100 pointer-events-auto' : 'opacity-0'}"
+	on:click={closeSidebar}
+	on:keydown={(e) => e.key === 'Escape' && closeSidebar()}
+	role="button"
+	tabindex="0"
+></div>
+
+<!-- Sidebar -->
+<nav class="fixed left-0 top-0 lg:w-90 w-[120vw] bg-[url('/paper-sidebar.png')] bg-contain bg-repeat-y h-screen overflow-y-auto transition-transform duration-300 z-[60] {
+	isOpen ? 'translate-x-0' : '-translate-x-full lg:translate-x-0'
+}">
+	<!-- Content wrapper to constrain to screen width -->
+	<div class="lg:w-full w-screen p-8">
+		<!-- Header with close button -->
+		<div class="flex items-center justify-between mb-4">
+			<h3 class="font-serif text-lg text-[#8b4513]">Daydream Organizer Guide</h3>
+			<button 
+				on:click={closeSidebar}
+				class="lg:hidden p-1 text-[#8b4513] hover:bg-[#8b4513]/10 rounded -translate-y-0.5"
+				aria-label="Close navigation"
+			>
+				<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+					<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
+				</svg>
+			</button>
+		</div>
+		<ul class="space-y-1">
+			{#each pages as guideItem}
+				<li>
+					<a 
+						href={guideItem.href}
+						on:click={closeSidebar}
+						class="block px-4 py-3 mr-8 text-lg rounded-md transition-colors duration-150 opacity-80 {
+							page.url.pathname === guideItem.href
+								? 'hover:bg-[#8b4513]/3' 
+								: 'hover:bg-[#8b4513]/5'
+						}"
+						style={page.url.pathname === guideItem.href ? 'color: #e472ab; font-weight: bold' : 'color: #8b4513;'}
+					>
+						<span class="mr-2">{guideItem.emoji}</span> {guideItem.title}
+					</a>
+				</li>
+			{/each}
+		</ul>
+	</div>
 </nav>
diff --git a/src/routes/guide/+layout.svelte b/src/routes/guide/+layout.svelte
index 81efd21..52424c7 100644
--- a/src/routes/guide/+layout.svelte
+++ b/src/routes/guide/+layout.svelte
@@ -33,11 +33,11 @@
 
 <div class="min-h-screen bg-gradient-to-b from-[#CCF4FD] to-[#cce7fd] relative overflow-hidden">
 	<!-- Brushstroke texture overlay -->
-	<div bind:this={cloudBg} class="absolute inset-0 bg-[url('cloud-texture-bg.png')] bg-size-[50vw_50vh] bg-repeat pointer-events-none opacity-20"></div>
+	<div bind:this={cloudBg} class="absolute inset-0 bg-[url('cloud-texture-bg.png')] bg-size-[50vh_auto] bg-repeat pointer-events-none opacity-20"></div>
 	<div class="absolute inset-0 bg-[url('brushstroking.png')] bg-repeat mix-blend-overlay opacity-60 pointer-events-none"></div>
 	
 	<GuideSidebar />
-	<div class="ml-90 prose prose-lg max-w-4xl mx-auto px-16 pl-24 py-16 prose-h1:font-serif prose-h1:not-first:mt-16 text-guide-text prose-bold relative z-10">
+	<div class="lg:ml-90 prose prose-lg max-w-4xl mx-auto px-4 lg:px-16 lg:pl-24 py-16 prose-h1:font-serif prose-h1:not-first:mt-16 text-guide-text prose-bold relative z-10">
 		<slot />
 	</div>
 </div>
diff --git a/static/guide/sidebar-button.png b/static/guide/sidebar-button.png
new file mode 100644
index 0000000..84e03f7
Binary files /dev/null and b/static/guide/sidebar-button.png differ