Modified the UI layout

src/App.vue

@@ -2,7 +2,6 @@
   <div id="app" class="h-screen flex flex-col">
     <header class="bg-blue-600 text-white p-4 flex-shrink-0">
       <h1 class="text-2xl font-bold">TrackMap</h1>
-      <p class="text-blue-100">Analyze your cycling tracks</p>
     </header>
     
     <div class="flex flex-1 overflow-hidden">
@@ -11,22 +10,20 @@
         :tracks="tracks" 
         :selectedTrackIndex="selectedTrackIndex"
         @track-selected="handleTrackSelected"
+        @files-uploaded="handleFilesUploaded"
       />
       
       <!-- Main Content -->
       <div class="flex-1 flex flex-col overflow-hidden">
-        <!-- Map -->
-        <div class="flex-1 p-4">
+        <!-- Map - takes full space when no tracks, or flexible space when tracks exist -->
+        <div :class="tracks.length > 0 ? 'flex-1' : 'flex-1'" class="p-4">
           <MapView :tracks="tracks" :selectedTrackIndex="selectedTrackIndex" />
         </div>
         
-        <!-- Upload Area -->
-        <div class="p-4 border-t border-gray-200 bg-gray-50">
-          <FileUpload @files-uploaded="handleFilesUploaded" />
-        </div>
-        
+        <!-- Statistics Section - only shows when tracks exist -->
+        <div v-if="tracks.length > 0" class="border-t border-gray-200 bg-white">
           <!-- Selected Track Details -->
-        <div v-if="selectedTrack" class="p-4 border-t border-gray-200 bg-white">
+          <div v-if="selectedTrack" class="p-4">
             <h3 class="text-lg font-medium mb-3">{{ selectedTrack.name }}</h3>
             <div class="grid grid-cols-2 md:grid-cols-5 gap-4">
               <div class="text-center">
@@ -53,7 +50,7 @@
           </div>
           
           <!-- Total Statistics -->
-        <div v-else-if="tracks.length > 0" class="p-4 border-t border-gray-200 bg-white">
+          <div v-else class="p-4">
             <h3 class="text-lg font-medium mb-3">Total Statistics</h3>
             <div class="grid grid-cols-2 md:grid-cols-5 gap-4">
               <div class="text-center">
@@ -81,6 +78,7 @@
         </div>
       </div>
     </div>
+  </div>
 </template>
 
 <script>

src/components/FileUpload.vue

@@ -1,24 +1,11 @@
 <template>
-  <div class="border-2 border-dashed border-gray-300 rounded-lg p-8 text-center hover:border-blue-400 transition-colors">
-    <div 
-      @drop.prevent="handleDrop"
-      @dragover.prevent
-      @dragenter.prevent
-      class="cursor-pointer"
+  <div class="flex items-center justify-center">
+    <button
       @click="$refs.fileInput.click()"
+      class="bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-lg transition-colors"
     >
-      <div class="mb-4">
-        <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12" />
-        </svg>
-      </div>
-      <div class="text-lg font-medium text-gray-900 mb-2">
-        Drop GPX files here or click to browse
-      </div>
-      <div class="text-sm text-gray-500">
-        Upload your cycling tracks to visualize them on the map
-      </div>
-    </div>
+      Upload GPX Files
+    </button>
     
     <input
       ref="fileInput"
@@ -30,25 +17,8 @@
     />
     
     <!-- File list -->
-    <div v-if="uploadedFiles.length > 0" class="mt-6 text-left">
-      <h3 class="font-medium text-gray-900 mb-3">Uploaded Files:</h3>
-      <div class="space-y-2">
-        <div 
-          v-for="file in uploadedFiles" 
-          :key="file.name"
-          class="flex items-center justify-between p-3 bg-gray-50 rounded-lg"
-        >
-          <div class="flex items-center">
-            <svg class="h-5 w-5 text-green-500 mr-2" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
-            </svg>
-            <span class="text-sm font-medium">{{ file.name }}</span>
-          </div>
-          <div class="text-xs text-gray-500">
-            {{ (file.size / 1024).toFixed(1) }} KB
-          </div>
-        </div>
-      </div>
+    <div v-if="uploadedFiles.length > 0" class="ml-4 text-sm text-gray-600">
+      {{ uploadedFiles.length }} file{{ uploadedFiles.length > 1 ? 's' : '' }} uploaded
     </div>
   </div>
 </template>
@@ -62,13 +32,6 @@ export default {
   setup(props, { emit }) {
     const uploadedFiles = ref([])
 
-    const handleDrop = (event) => {
-      const files = Array.from(event.dataTransfer.files).filter(file => 
-        file.name.toLowerCase().endsWith('.gpx')
-      )
-      processFiles(files)
-    }
-
     const handleFileSelect = (event) => {
       const files = Array.from(event.target.files)
       processFiles(files)
@@ -83,7 +46,6 @@ export default {
 
     return {
       uploadedFiles,
-      handleDrop,
       handleFileSelect
     }
   }

src/components/MapView.vue

@@ -1,5 +1,5 @@
 <template>
-  <div id="map" class="w-full h-96 rounded-lg shadow-md"></div>
+  <div id="map" class="w-full h-full rounded-lg shadow-md"></div>
 </template>
 
 <script>

src/components/TrackList.vue

@@ -64,12 +64,22 @@
         </div>
       </div>
     </div>
+    
+    <!-- Sticky Upload Button at Bottom -->
+    <div class="p-4 border-t border-gray-200 bg-white">
+      <FileUpload @files-uploaded="$emit('files-uploaded', $event)" />
+    </div>
   </div>
 </template>
 
 <script>
+import FileUpload from './FileUpload.vue'
+
 export default {
   name: 'TrackList',
+  components: {
+    FileUpload
+  },
   props: {
     tracks: {
       type: Array,
@@ -80,7 +90,7 @@ export default {
       default: null
     }
   },
-  emits: ['track-selected'],
+  emits: ['track-selected', 'files-uploaded'],
   methods: {
     selectTrack(index) {
       this.$emit('track-selected', index)