diff --git a/src/Planner.svelte b/src/Planner.svelte
index ea4f8f9..8f72b80 100644
--- a/src/Planner.svelte
+++ b/src/Planner.svelte
@@ -23,29 +23,44 @@
 
   // ── Tile layers ────────────────────────────────────────────────────────────
   const TILES = {
-    cyclosm: {
+    cyclosm:   {
       tiles: [
         'https://a.tile-cyclosm.openstreetmap.fr/cyclosm/{z}/{x}/{y}.png',
         'https://b.tile-cyclosm.openstreetmap.fr/cyclosm/{z}/{x}/{y}.png',
         'https://c.tile-cyclosm.openstreetmap.fr/cyclosm/{z}/{x}/{y}.png',
       ],
       attribution: '© <a href="https://www.cyclosm.org">CyclOSM</a> | © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
-      label: 'CyclOSM',
+      label: 'Cycle',
     },
-    osm: {
+    osm:       {
       tiles: ['https://tile.openstreetmap.org/{z}/{x}/{y}.png'],
       attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
       label: 'OSM',
     },
+    topo:      {
+      tiles: [
+        'https://a.tile.opentopomap.org/{z}/{x}/{y}.png',
+        'https://b.tile.opentopomap.org/{z}/{x}/{y}.png',
+        'https://c.tile.opentopomap.org/{z}/{x}/{y}.png',
+      ],
+      attribution: '© <a href="https://opentopomap.org">OpenTopoMap</a> | © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
+      label: 'Topo',
+    },
+    satellite: {
+      tiles: ['https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}'],
+      attribution: '© <a href="https://www.esri.com">Esri</a> World Imagery',
+      label: 'Sat',
+    },
   };
+  const TILE_ORDER = ['cyclosm', 'osm', 'topo', 'satellite'];
 
   let tileLayer = $state('cyclosm');
 
-  function toggleTiles() {
-    tileLayer = tileLayer === 'cyclosm' ? 'osm' : 'cyclosm';
+  function setTileLayer(key) {
+    tileLayer = key;
     if (!map) return;
     const src = map.getSource('base');
-    if (src) src.setTiles(TILES[tileLayer].tiles);
+    if (src) src.setTiles(TILES[key].tiles);
   }
 
   // ── Map init ───────────────────────────────────────────────────────────────
@@ -199,7 +214,7 @@ ${trkpts}
     if (!route) return null;
     const p = route.properties ?? {};
     const dist = parseFloat(p['track-length'] ?? 0) / 1000;
-    const up   = parseInt(p['filtered ascent'] ?? p.ascent ?? 0);
+    const up   = parseInt(p['filtered ascend'] ?? p.ascend ?? 0);
     return { dist: dist.toFixed(1), up };
   }
 
@@ -214,6 +229,20 @@ ${trkpts}
       <a href={activityUrl} class="back-link">← Activity</a>
     </header>
 
+    <!-- Map layer selector -->
+    <section class="section">
+      <p class="label">Map</p>
+      <div class="pills">
+        {#each TILE_ORDER as key}
+          <button
+            class="pill"
+            class:active={tileLayer === key}
+            onclick={() => setTileLayer(key)}
+          >{TILES[key].label}</button>
+        {/each}
+      </div>
+    </section>
+
     <!-- Profile selector -->
     <section class="section">
       <p class="label">Profile</p>
@@ -269,11 +298,7 @@ ${trkpts}
 
   <!-- Map + elevation -->
   <main class="map-area">
-    <div class="map-wrap" bind:this={mapEl}>
-      <button class="tile-toggle" onclick={toggleTiles} title="Switch map layer">
-        {TILES[tileLayer].label}
-      </button>
-    </div>
+    <div class="map-wrap" bind:this={mapEl}></div>
     {#if route}
       <div class="elevation-wrap">
         <ElevationChart {route} />
@@ -391,24 +416,7 @@ ${trkpts}
   .small { font-size: 0.75rem; margin: 0; }
 
   .map-area { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
-  .map-wrap { flex: 1; position: relative; }
-
-  .tile-toggle {
-    position: absolute;
-    top: 0.5rem;
-    left: 0.5rem;
-    z-index: 10;
-    padding: 0.25rem 0.5rem;
-    border-radius: 0.375rem;
-    border: 1px solid var(--border);
-    background: var(--bg-card);
-    color: var(--text-4);
-    font-size: 0.7rem;
-    font-weight: 600;
-    cursor: pointer;
-    transition: all 0.15s;
-  }
-  .tile-toggle:hover { border-color: var(--accent); color: var(--accent); }
+  .map-wrap { flex: 1; }
   .elevation-wrap { height: 140px; flex-shrink: 0; background: var(--bg-card); border-top: 1px solid var(--border); }
 
   :global(.wp-marker) {