diff --git a/website/src/Home.svelte b/website/src/Home.svelte
index 3ff7be1..0e311e8 100644
--- a/website/src/Home.svelte
+++ b/website/src/Home.svelte
@@ -170,7 +170,16 @@
 <Layout>
 	<ClickEffect />
 	<div id="info">
-		<CollapsableModal collapsedIcon={Info} isOpen={!state.isFirstInteraction}>
+		<CollapsableModal collapsedIcon={Info}
+			isOpen={state.isInfoOpen}
+			onOpen={() => {
+				state.isSearchOpen = false;
+				state.isInfoOpen = true;
+			}}
+			onClose={() => {
+				state.isInfoOpen = false;
+			}}
+		>
 			<h2>All The Views In The World</h2>
 			<p>We've calculated all the views on the planet.</p>
 			<p>
@@ -321,7 +330,8 @@
 	</div>
 </Layout>
 
-<style>
+<style lang="scss">
+	@use "./styles/variables.scss" as *;
 	#info {
 		position: fixed;
 		top: 1em;
@@ -351,6 +361,34 @@
 		gap: 1em;
 	}
 
+	/* Mobile-only layout tweaks */
+	@media (max-width: $mobile-break) {
+		/* slightly smaller collapsed modal icons on Home only */
+		:global(#info .collapseable_modal .modal__open svg) {
+			width: 1rem;
+			height: 1rem;
+		}
+
+		/* align top of first info button roughly with search bar */
+		#info {
+			top: 1.08rem;
+			right: 0.75rem;
+			max-width: min(22rem, 80vw);
+			gap: 0.75rem;
+		}
+
+		:global(#info .collapseable_modal > div) {
+			padding: 0.75em;
+		}
+
+		#layout_toggles {
+			left: 0.5rem;
+			bottom: 0.5rem;
+			gap: 0.4rem;
+			flex-direction: column;
+		}
+	}
+
 	.unclickable_icon {
 		display: inline-block;
 		scale: 0.7;
diff --git a/website/src/Layout.svelte b/website/src/Layout.svelte
index 614aa87..ae8a17d 100644
--- a/website/src/Layout.svelte
+++ b/website/src/Layout.svelte
@@ -1,34 +1,9 @@
 <script lang="ts">
-  import { onDestroy, onMount } from 'svelte';
+  import { onDestroy } from 'svelte';
   import 'maplibre-gl/dist/maplibre-gl.css';
   import 'accessible-nprogress/src/styles.css';
-  import { MapboxSearchBox } from '@mapbox/search-js-web';
+  import SearchBox from './components/SearchBox.svelte';
   import { state } from './state.svelte.ts';
-  import { disablePointer } from './utils.ts';
-
-  onMount(() => {
-    const searchBox = new MapboxSearchBox();
-    searchBox.accessToken =
-      'pk.eyJ1IjoidG9tYmgiLCJhIjoiY2p4cWlqNnY1MDFhZDNscXc5YXJpcTJzciJ9.7gGR5t8KEAY0ZoXfTVBcng';
-    searchBox.options = {
-      types: 'poi,place,country',
-      poi_category: 'mountain,natural_feature',
-    };
-    searchBox.addEventListener('retrieve', (e) => {
-      const feature = e.detail;
-      const coordinates = feature.features[0]?.geometry.coordinates;
-      state.map?.flyTo({
-        center: [coordinates[0], coordinates[1]],
-        zoom: 11,
-      });
-      state.isFlying = true;
-
-      disablePointer();
-    });
-
-    // @ts-expect-error: `document` can't be null.
-    document.querySelector('#search-box').appendChild(searchBox);
-  });
 
   onDestroy(() => {
     state.map?.remove();
@@ -37,7 +12,7 @@
 
 <div id="map"></div>
 
-<div id="search-box"></div>
+<SearchBox />
 
 <main>
 	<slot />
@@ -49,11 +24,4 @@
 		height: 100%;
 		width: 100%;
 	}
-
-	#search-box {
-		position: absolute;
-		width: 300px;
-		margin-left: 17px;
-		margin-top: 17px;
-	}
 </style>
diff --git a/website/src/components/CollapsableModal.svelte b/website/src/components/CollapsableModal.svelte
index 43af096..5b9b536 100644
--- a/website/src/components/CollapsableModal.svelte
+++ b/website/src/components/CollapsableModal.svelte
@@ -4,18 +4,32 @@
 
   export let collapsedIcon: Component;
   export let isOpen = true;
+  export let onOpen: (() => void) | undefined = undefined;
+  export let onClose: (() => void) | undefined = undefined;
   const __buttonSize = 18;
 </script>
 
 <div class="collapseable_modal {isOpen ? '' : 'modal__collapsed'}">
 	<div>
 		{#if isOpen}
-			<button class="modal__close" on:click={() => (isOpen = false)}>
+			<button
+				class="modal__close"
+				on:click={() => {
+					isOpen = false;
+					onClose?.();
+				}}
+			>
 				<Minimize2 size={__buttonSize} />
 			</button>
 			<slot />
 		{:else}
-			<button class="modal__open" on:click={() => (isOpen = true)}>
+			<button
+				class="modal__open"
+				on:click={() => {
+					isOpen = true;
+					onOpen?.();
+				}}
+			>
 				<svelte:component this={collapsedIcon} size={__buttonSize} />
 			</button>
 		{/if}
diff --git a/website/src/components/LayerToggle.svelte b/website/src/components/LayerToggle.svelte
index ee7fdf8..dffa677 100644
--- a/website/src/components/LayerToggle.svelte
+++ b/website/src/components/LayerToggle.svelte
@@ -16,7 +16,8 @@
 	<img src={image} alt="Layer toggle" />
 </button>
 
-<style>
+<style lang="scss">
+	@use "../styles/variables.scss" as *;
 	button {
 		all: unset;
 		cursor: pointer;
@@ -54,4 +55,10 @@
 			}
 		}
 	}
+	@media /* mobile-only */ (max-width: $mobile-break) {
+		.layer_toggle {
+			width: 2.75rem;
+			height: 2.75rem;
+		}
+	}
 </style>
diff --git a/website/src/components/SearchBox.svelte b/website/src/components/SearchBox.svelte
new file mode 100644
index 0000000..cc82cd8
--- /dev/null
+++ b/website/src/components/SearchBox.svelte
@@ -0,0 +1,117 @@
+<script lang="ts">
+  import { Search } from '@lucide/svelte';
+  import { MapboxSearchBox } from '@mapbox/search-js-web';
+  import { onMount } from 'svelte';
+  import { state } from '../state.svelte.ts';
+  import { disablePointer } from '../utils.ts';
+
+  onMount(() => {
+    const searchBox = new MapboxSearchBox();
+    searchBox.accessToken =
+      'pk.eyJ1IjoidG9tYmgiLCJhIjoiY2p4cWlqNnY1MDFhZDNscXc5YXJpcTJzciJ9.7gGR5t8KEAY0ZoXfTVBcng';
+    searchBox.options = {
+      types: 'poi,place,country',
+      poi_category: 'mountain,natural_feature',
+    };
+    searchBox.addEventListener('retrieve', (e) => {
+      const feature = e.detail;
+      const coordinates = feature.features[0]?.geometry.coordinates;
+      state.map?.flyTo({
+        center: [coordinates[0], coordinates[1]],
+        zoom: 11,
+      });
+      state.isFlying = true;
+
+      disablePointer();
+    });
+
+    /* #search-widget is hidden (display: none) on mobile until the user expands search;
+    we still mount here so the box is ready. Guard in case the node isn't available yet. */
+    const container = document.querySelector('#search-widget');
+    if (container) {
+      // @ts-expect-error: MapboxSearchBox is a custom element
+      container.appendChild(searchBox);
+    }
+  });
+</script>
+
+<div id="search-box" class:is-open={state.isSearchOpen}>
+	<div id="search-widget"></div>
+	<button
+		id="search-toggle"
+		type="button"
+		on:click={() => {
+			state.isSearchOpen = true;
+			state.isInfoOpen = false;
+		}}
+	>
+		<Search size={18} />
+	</button>
+</div>
+
+<style lang="scss">
+	@use "../styles/variables.scss" as *;
+	#search-box {
+		position: absolute;
+		width: 300px;
+		margin-left: 17px;
+		margin-top: 17px;
+	}
+
+	#search-widget {
+		width: 100%;
+	}
+
+	#search-toggle {
+		all: unset;
+		cursor: pointer;
+		display: none;
+	}
+
+	/* Mobile: search behaves like a compact icon button that expands into the full input */
+	@media (max-width: $mobile-break) {
+		#search-box {
+			width: 2.75rem;
+			height: 2.5rem;
+			display: flex;
+			align-items: center;
+			justify-content: center;
+			overflow: hidden;
+			background-color: white;
+			border-radius: 3px;
+			z-index: 2;
+		}
+
+		#search-toggle {
+			display: flex;
+			width: 1rem;
+			height: 2.5rem;
+			align-items: center;
+			justify-content: center;
+			color: #141f41;
+		}
+
+		/* collapsed: only icon button visible */
+		#search-widget {
+			display: none;
+		}
+
+		/* expanded: show full widget, hide icon, grow container */
+		#search-box.is-open {
+			width: min(18rem, 80vw);
+			height: auto;
+			overflow: visible;
+			background-color: transparent;
+			border-radius: 0;
+		}
+
+		#search-box.is-open #search-widget {
+			display: block;
+		}
+
+		#search-box.is-open #search-toggle {
+			display: none;
+		}
+	}
+</style>
+
diff --git a/website/src/state.svelte.ts b/website/src/state.svelte.ts
index 497ed39..693b017 100644
--- a/website/src/state.svelte.ts
+++ b/website/src/state.svelte.ts
@@ -18,6 +18,9 @@ const heatmapConfig: HeatmapConfig = {
   intensity: 1 - 0.5,
 };
 const isFlying = false;
+// Mobile-only events
+const isSearchOpen = false;
+const isInfoOpen = true;
 
 export const state = $state({
   map,
@@ -28,4 +31,6 @@ export const state = $state({
   bruteForceLoadingLine,
   heatmapConfig,
   isFlying,
+  isSearchOpen,
+  isInfoOpen,
 });
diff --git a/website/src/styles/index.scss b/website/src/styles/index.scss
index b5c205a..4c03016 100644
--- a/website/src/styles/index.scss
+++ b/website/src/styles/index.scss
@@ -1,5 +1,4 @@
 @use "sass:color";
-
 @use "./variables.scss" as *;
 
 body {
@@ -49,3 +48,17 @@ a {
 .maplibregl-canvas {
   background-color: #131e40;
 }
+
+/* Mobile-only tweaks */
+@media (max-width: $mobile-break) {
+  /* Map attribution: make box narrower and text more compact */
+  .maplibregl-ctrl-attrib {
+    max-width: 200px;
+  }
+  .maplibregl-ctrl-attrib-inner {
+    white-space: normal; /* allow wrapping */
+    font-size: 10px;
+    line-height: 1.2;
+    padding: 2px 4px;
+  }
+}
\ No newline at end of file
diff --git a/website/src/styles/variables.scss b/website/src/styles/variables.scss
index 7c720c4..e657777 100644
--- a/website/src/styles/variables.scss
+++ b/website/src/styles/variables.scss
@@ -2,6 +2,7 @@ $primary-colour: #fd6612;
 $secondary-colour: #141f41;
 $secondary-light: #b8bdd6;
 $longest-line: #5bc0eb;
+$mobile-break: 730px;
 
 :root {
   --primary-colour: #{$primary-colour};