diff --git a/app/templates/layouts/app.html.erb b/app/templates/layouts/app.html.erb
index 534783f..5d897a0 100644
--- a/app/templates/layouts/app.html.erb
+++ b/app/templates/layouts/app.html.erb
@@ -3,11 +3,16 @@
   <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="theme-color" content="#2d5a27">
+    <meta name="description" content="EuchreCamp - Track your Euchre games and tournaments">
     <title>EuchreCamp</title>
     <%= favicon_tag %>
     <%= stylesheet_tag "app" %>
+    <!-- PWA Manifest -->
+    <link rel="manifest" href="/manifest.json">
   </head>
   <body>
+    <!-- Desktop Navigation -->
     <nav class="main-nav">
       <div class="nav-brand">
         <a href="/">EuchreCamp</a>
@@ -32,9 +37,70 @@
         <% end %>
       </div>
     </nav>
+    
+    <!-- Main Content -->
     <main class="main-content">
       <%= yield %>
     </main>
+    
+    <!-- Bottom Navigation (Mobile) -->
+    <nav class="bottom-nav">
+      <a href="/rankings" class="bottom-nav-item" id="nav-rankings">
+        <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z" />
+        </svg>
+        <span>Rankings</span>
+      </a>
+      
+      <% if defined?(current_player) && current_player %>
+        <a href="/players/<%= current_player.id %>/schedule" class="bottom-nav-item" id="nav-schedule">
+          <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z" />
+          </svg>
+          <span>Schedule</span>
+        </a>
+        
+        <a href="/players/<%= current_player.id %>/profile" class="bottom-nav-item" id="nav-profile">
+          <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z" />
+          </svg>
+          <span>Profile</span>
+        </a>
+        
+        <% if current_player.respond_to?(:admin?) && current_player.admin? %>
+          <a href="/admin" class="bottom-nav-item" id="nav-admin">
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z" />
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+            </svg>
+            <span>Admin</span>
+          </a>
+        <% end %>
+      <% else %>
+        <a href="/login" class="bottom-nav-item" id="nav-login">
+          <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 16l-4-4m0 0l4-4m-4 4h14m-5 4v1a3 3 0 01-3 3H6a3 3 0 01-3-3V7a3 3 0 013-3h7a3 3 0 013 3v1" />
+          </svg>
+          <span>Login</span>
+        </a>
+      <% end %>
+    </nav>
+    
     <%= javascript_tag "app" %>
+    
+    <!-- Service Worker Registration -->
+    <script>
+      if ('serviceWorker' in navigator) {
+        window.addEventListener('load', () => {
+          navigator.serviceWorker.register('/service-worker.js')
+            .then(registration => {
+              console.log('ServiceWorker registration successful');
+            })
+            .catch(error => {
+              console.log('ServiceWorker registration failed:', error);
+            });
+        });
+      }
+    </script>
   </body>
 </html>
