diff --git a/Notemark/Components/App.razor b/Notemark/Components/App.razor
index 405c956..8003bb5 100644
--- a/Notemark/Components/App.razor
+++ b/Notemark/Components/App.razor
@@ -3,7 +3,11 @@
 
 <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no" />
+    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+    <meta name="apple-mobile-web-app-title" content="Notemark" />
+    <meta name="mobile-web-app-capable" content="yes" />
     <base href="/" />
     <ResourcePreloader />
     <link rel="stylesheet" href="@Assets["lib/bootstrap/dist/css/bootstrap.min.css"]" />
diff --git a/Notemark/Components/Pages/Editor.razor.css b/Notemark/Components/Pages/Editor.razor.css
index 6c8aa65..1c026df 100644
--- a/Notemark/Components/Pages/Editor.razor.css
+++ b/Notemark/Components/Pages/Editor.razor.css
@@ -1,5 +1,4 @@
 /* Notemark Editor Styles */
-
 .editor-container {
   height: 100vh;
   display: flex;
@@ -458,37 +457,76 @@
   background-color: white;
 }
 
-/* Mobile Responsive */
-@media (max-width: 768px) {
+/* Mobile Responsive - Place at end to override desktop styles */
+@media screen and (max-width: 768px) {
   .editor-layout.split-view {
-    flex-direction: column;
+    flex-direction: column !important;
   }
   
   .split-view .editor-pane {
     border-right: none;
     border-bottom: 1px solid var(--border);
+    flex: 1;
+  }
+  
+  .preview-pane {
+    flex: 1;
+  }
+  
+  .splitter {
+    display: none;
   }
   
   .top-bar {
     padding: 0.5rem;
+    height: auto;
+    min-height: 50px;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+  }
+  
+  .top-bar-left,
+  .top-bar-center,
+  .top-bar-right {
+    gap: 0.5rem;
   }
   
   .btn-toggle,
   .btn-share,
   .btn-save,
   .btn-new {
-    font-size: 0.75rem;
-    padding: 0.375rem 0.75rem;
+    font-size: 14px;
+    padding: 8px 12px;
+    min-height: 44px;
+    white-space: nowrap;
   }
   
   .btn-save {
-    padding: 0.375rem;
-    min-width: 2rem;
-    font-size: 0.875rem;
+    min-width: 44px;
+    padding: 8px;
+  }
+  
+  .markdown-editor {
+    font-size: 16px; /* Prevent iOS zoom */
+    padding: 1rem;
+    -webkit-overflow-scrolling: touch;
   }
   
-  .markdown-editor,
   .preview-content {
     padding: 1rem;
+    -webkit-overflow-scrolling: touch;
   }
-}
\ No newline at end of file
+  
+  /* Share dropdown mobile adjustments */
+  .share-dropdown {
+    position: fixed;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    width: 90vw;
+    max-width: 320px;
+    z-index: 1000;
+  }
+}
+
+
diff --git a/Notemark/Components/Shared/ThemeToggle.razor b/Notemark/Components/Shared/ThemeToggle.razor
index b61f32c..7b107bb 100644
--- a/Notemark/Components/Shared/ThemeToggle.razor
+++ b/Notemark/Components/Shared/ThemeToggle.razor
@@ -5,39 +5,35 @@
 </button>
 
 @code {
-    private string currentTheme = "auto";
+    private string currentTheme = "light";
 
     protected override async Task OnInitializedAsync()
     {
         try
         {
+            await JSRuntime.InvokeVoidAsync("notemarkTheme.init");
             currentTheme = await JSRuntime.InvokeAsync<string>("notemarkTheme.getCurrentTheme");
         }
-        catch
+        catch (Exception ex)
         {
-            // Fallback if JS not ready
-            currentTheme = "auto";
+            System.Diagnostics.Debug.WriteLine($"Theme init error: {ex.Message}");
+            currentTheme = "light";
         }
     }
 
     private async Task ToggleTheme()
     {
-        // Cycle through: auto -> light -> dark -> auto
-        currentTheme = currentTheme switch
-        {
-            "auto" => "light",
-            "light" => "dark",
-            "dark" => "auto",
-            _ => "auto"
-        };
+        // Simple toggle: light <-> dark
+        currentTheme = currentTheme == "light" ? "dark" : "light";
 
         try
         {
             await JSRuntime.InvokeVoidAsync("notemarkTheme.setTheme", currentTheme);
+            System.Diagnostics.Debug.WriteLine($"Theme switched to: {currentTheme}");
         }
-        catch
+        catch (Exception ex)
         {
-            // JS not ready, silently fail
+            System.Diagnostics.Debug.WriteLine($"Theme toggle error: {ex.Message}");
         }
 
         StateHasChanged();
@@ -45,23 +41,11 @@
 
     private string GetThemeIcon()
     {
-        return currentTheme switch
-        {
-            "light" => "☀️",
-            "dark" => "🌙",
-            "auto" => "🔄",
-            _ => "🔄"
-        };
+        return currentTheme == "dark" ? "🌙" : "☀️";
     }
 
     private string GetThemeTooltip()
     {
-        return currentTheme switch
-        {
-            "light" => "Switch to dark mode",
-            "dark" => "Switch to auto mode",
-            "auto" => "Switch to light mode",
-            _ => "Toggle theme"
-        };
+        return currentTheme == "dark" ? "Switch to light mode" : "Switch to dark mode";
     }
 }
diff --git a/Notemark/wwwroot/js/theme.js b/Notemark/wwwroot/js/theme.js
index b50c95c..48c7240 100644
--- a/Notemark/wwwroot/js/theme.js
+++ b/Notemark/wwwroot/js/theme.js
@@ -1,35 +1,43 @@
+// Ultra-simple theme for iOS testing
 window.notemarkTheme = {
+    currentTheme: 'light',
+    
     init: function() {
-        // Get saved theme or default to 'auto'
-        const savedTheme = localStorage.getItem('notemark-theme') || 'auto';
-        this.applyTheme(savedTheme);
-        return savedTheme;
+        console.log('Simple theme init');
+        this.applyTheme(this.currentTheme);
+        return this.currentTheme;
     },
     
     setTheme: function(theme) {
-        localStorage.setItem('notemark-theme', theme);
+        console.log('Setting theme:', theme);
+        this.currentTheme = theme;
         this.applyTheme(theme);
     },
     
     applyTheme: function(theme) {
+        console.log('Applying theme:', theme);
         const root = document.documentElement;
         
-        if (theme === 'light') {
-            root.setAttribute('data-theme', 'light');
-        } else if (theme === 'dark') {
-            root.setAttribute('data-theme', 'dark');
+        if (theme === 'dark') {
+            root.style.setProperty('--bg', '#1a1a1a');
+            root.style.setProperty('--surface', '#2d2d2d');
+            root.style.setProperty('--primary-text', '#ffffff');
+            root.style.setProperty('--secondary-text', '#cccccc');
+            root.style.setProperty('--border', '#404040');
+            root.style.setProperty('--accent', '#007acc');
         } else {
-            // For 'auto', remove data-theme to let CSS @media handle it
-            root.removeAttribute('data-theme');
+            root.style.setProperty('--bg', '#ffffff');
+            root.style.setProperty('--surface', '#f8f9fa');
+            root.style.setProperty('--primary-text', '#333333');
+            root.style.setProperty('--secondary-text', '#666666');
+            root.style.setProperty('--border', '#e9ecef');
+            root.style.setProperty('--accent', '#007acc');
         }
-    },
-    
-    getSystemTheme: function() {
-        return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+        console.log('Theme applied successfully');
     },
     
     getCurrentTheme: function() {
-        return localStorage.getItem('notemark-theme') || 'auto';
+        return this.currentTheme;
     }
 };