diff --git a/main.go b/main.go
index 79aa464..e4260df 100644
--- a/main.go
+++ b/main.go
@@ -400,11 +400,17 @@ const adminHTML = `<!DOCTYPE html>
   <title>Admin Panel — NextWorkspace</title>
   <style>
     * { margin: 0; padding: 0; box-sizing: border-box; }
-    body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #f0f2f5; color: #1a1a2e; }
-    header { background: linear-gradient(135deg, #1a1a2e, #16213e); color: #fff; padding: 1.5rem 2rem; display: flex; justify-content: space-between; align-items: center; }
-    header h1 { font-size: 1.5rem; }
-    header a { color: #63b3ed; text-decoration: none; font-size: 0.9rem; }
-    .container { max-width: 1000px; margin: 0 auto; padding: 2rem; }
+    body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #f0f2f5; color: #1a1a2e; display: flex; flex-direction: column; height: 100vh; }
+    header { background: linear-gradient(135deg, #1a1a2e, #16213e); color: #fff; padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; flex-shrink: 0; }
+    header h1 { font-size: 1.3rem; }
+    header a { color: #63b3ed; text-decoration: none; font-size: 0.85rem; }
+    .layout { display: flex; flex: 1; overflow: hidden; }
+    .sidebar { width: 220px; background: #fff; border-right: 1px solid #e2e8f0; padding: 1rem 0; flex-shrink: 0; overflow-y: auto; }
+    .sidebar a { display: block; padding: 0.6rem 1.25rem; color: #4a5568; text-decoration: none; font-size: 0.9rem; border-left: 3px solid transparent; }
+    .sidebar a:hover { background: #edf2f7; border-left-color: #63b3ed; color: #1a1a2e; }
+    .sidebar a.active { background: #ebf4ff; border-left-color: #1a1a2e; color: #1a1a2e; font-weight: 600; }
+    .sidebar .section { padding: 0.6rem 1.25rem 0.3rem; font-size: 0.7rem; text-transform: uppercase; color: #a0aec0; letter-spacing: 0.05em; font-weight: 600; }
+    .content { flex: 1; padding: 1.5rem; overflow-y: auto; }
     .card { background: #fff; border-radius: 8px; padding: 1.5rem; margin-bottom: 1.5rem; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
     h2 { font-size: 1.2rem; margin-bottom: 1rem; color: #2d3748; }
     table { width: 100%; border-collapse: collapse; }
@@ -412,13 +418,15 @@ const adminHTML = `<!DOCTYPE html>
     th { color: #718096; font-weight: 600; }
     .btn { display: inline-block; padding: 0.4rem 0.8rem; border-radius: 4px; text-decoration: none; font-size: 0.85rem; cursor: pointer; border: none; }
     .btn-danger { background: #fc8181; color: #fff; }
+    .btn-danger:hover { background: #f56565; }
     .btn-primary { background: #1a1a2e; color: #fff; }
     .btn-primary:hover { background: #2d3748; }
-    input, select { padding: 0.4rem 0.6rem; border: 1px solid #e2e8f0; border-radius: 4px; font-size: 0.9rem; margin-right: 0.5rem; }
+    input, select { padding: 0.4rem 0.6rem; border: 1px solid #e2e8f0; border-radius: 4px; font-size: 0.9rem; }
     .form-row { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
     .success { background: #c6f6d5; color: #276749; padding: 0.75rem; border-radius: 6px; margin-bottom: 1rem; }
     .error { background: #fed7d7; color: #c53030; padding: 0.75rem; border-radius: 6px; margin-bottom: 1rem; }
     .password-box { background: #1a1a2e; color: #63b3ed; padding: 0.75rem; border-radius: 4px; font-family: monospace; margin-top: 0.5rem; }
+    .hidden { display: none; }
   </style>
 </head>
 <body>
@@ -426,42 +434,71 @@ const adminHTML = `<!DOCTYPE html>
     <h1>Admin Panel</h1>
     <a href="/home/">Back to Launcher</a>
   </header>
-  <div class="container">
-    {{if .ApiError}}<div class="error">Could not fetch users from authelia-api (is it running on :8080?)</div>{{end}}
+  <div class="layout">
+    <nav class="sidebar">
+      <div class="section">Management</div>
+      <a href="#" class="active" onclick="return showSection('users')">Users</a>
+      <a href="#" onclick="return showSection('create')">Create User</a>
+      <div class="section">System</div>
+      <a href="#" onclick="return showSection('logs')">Logs</a>
+      <a href="#" onclick="return showSection('about')">About</a>
+    </nav>
+    <main class="content">
+      {{if .ApiError}}<div class="error">Could not fetch users from authelia-api (is it running on :8080?)</div>{{end}}
 
-    <div class="card">
-      <h2>Create User</h2>
-      <form id="createForm" onsubmit="createUser(event)">
-        <div class="form-row">
-          <input name="username" placeholder="Username" required>
-          <input name="display_name" placeholder="Display Name" required>
-          <input name="email" placeholder="Email" type="email" required>
-          <select name="groups" multiple size="3">
-            <option value="users">users</option>
-            <option value="drive">drive</option>
-            <option value="office">office</option>
-            <option value="erp">erp</option>
-            <option value="chat">chat</option>
-            <option value="meet">meet</option>
-            <option value="mail">mail</option>
-            <option value="ai">ai</option>
-          </select>
-          <button type="submit" class="btn btn-primary">Create</button>
-        </div>
-      </form>
-      <div id="createResult"></div>
-    </div>
+      <div id="section-users" class="card">
+        <h2>Users</h2>
+        <table>
+          <thead><tr><th>Username</th><th>Display Name</th><th>Email</th><th>Groups</th><th>Action</th></tr></thead>
+          <tbody id="usersTable"></tbody>
+        </table>
+      </div>
 
-    <div class="card">
-      <h2>Users</h2>
-      <table>
-        <thead><tr><th>Username</th><th>Display Name</th><th>Email</th><th>Groups</th><th>Action</th></tr></thead>
-        <tbody id="usersTable"></tbody>
-      </table>
-    </div>
+      <div id="section-create" class="card hidden">
+        <h2>Create User</h2>
+        <form id="createForm" onsubmit="createUser(event)">
+          <div class="form-row">
+            <input name="username" placeholder="Username" required>
+            <input name="display_name" placeholder="Display Name" required>
+            <input name="email" placeholder="Email" type="email" required>
+            <select name="groups" multiple size="3">
+              <option value="users">users</option>
+              <option value="drive">drive</option>
+              <option value="office">office</option>
+              <option value="erp">erp</option>
+              <option value="chat">chat</option>
+              <option value="meet">meet</option>
+              <option value="mail">mail</option>
+              <option value="ai">ai</option>
+            </select>
+            <button type="submit" class="btn btn-primary">Create</button>
+          </div>
+        </form>
+        <div id="createResult"></div>
+      </div>
+
+      <div id="section-logs" class="card hidden">
+        <h2>System Logs</h2>
+        <p style="color:#718096;font-size:0.9rem;">Log viewer coming soon.</p>
+      </div>
+
+      <div id="section-about" class="card hidden">
+        <h2>About</h2>
+        <p style="color:#718096;font-size:0.9rem;">NextWorkspace v0.1.0.0011</p>
+      </div>
+    </main>
   </div>
 
   <script>
+    function showSection(name) {
+      document.querySelectorAll('.sidebar a').forEach(a => a.classList.remove('active'));
+      event.target.classList.add('active');
+      document.querySelectorAll('.content > .card').forEach(c => c.classList.add('hidden'));
+      document.getElementById('section-' + name).classList.remove('hidden');
+      if (name === 'users') loadUsers();
+      return false;
+    }
+
     async function loadUsers() {
       const resp = await fetch('/config?format=json');
       const users = await resp.json();
@@ -475,11 +512,7 @@ const adminHTML = `<!DOCTYPE html>
       const data = Object.fromEntries(new FormData(form));
       data.groups = Array.from(form.querySelector('[name=groups]').selectedOptions).map(o => o.value);
       if (!data.groups.length) data.groups = ['users'];
-      const resp = await fetch('/config', {
-        method: 'POST',
-        headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({users: [data]})
-      });
+      const resp = await fetch('/config', {method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify({users:[data]})});
       const result = await resp.json();
       const div = document.getElementById('createResult');
       if (result.success) {
@@ -493,9 +526,9 @@ const adminHTML = `<!DOCTYPE html>
 
     async function deleteUser(username) {
       if (!confirm('Delete ' + username + '?')) return;
-      const resp = await fetch('/config?username=' + username, {method: 'DELETE'});
-      if (resp.ok) { loadUsers(); }
-      else { alert('Delete failed: ' + await resp.text()); }
+      const resp = await fetch('/config?username=' + username, {method:'DELETE'});
+      if (resp.ok) loadUsers();
+      else alert('Delete failed: ' + await resp.text());
     }
 
     loadUsers();
