diff --git a/main/admin.php b/main/admin.php
index 0d5f468..f106d15 100644
--- a/main/admin.php
+++ b/main/admin.php
@@ -60,6 +60,8 @@ $users = $stmt->fetchAll(PDO::FETCH_ASSOC);
 <html>
 <head>
     <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; style-src 'self' 'unsafe-inline';">
     <title>Text0Nly - Admin Panel</title>
     <link rel="stylesheet" href="styles.css">
     <style>
@@ -67,36 +69,102 @@ $users = $stmt->fetchAll(PDO::FETCH_ASSOC);
             width: 100%;
             border-collapse: collapse;
             margin-top: 20px;
+            font-size: 14px;
         }
         .admin-table th, .admin-table td {
-            padding: 8px;
+            padding: 12px 8px;
             border: 1px solid #ddd;
             text-align: left;
         }
         .admin-table th {
             background: #f5f5f5;
+            font-weight: 600;
         }
         .ban-btn {
             background: #dc3545;
             color: white;
             border: none;
-            padding: 4px 8px;
+            padding: 8px 12px;
             cursor: pointer;
             border-radius: 4px;
+            font-size: 14px;
+            width: 100%;
         }
         .unban-btn {
             background: #28a745;
             color: white;
             border: none;
-            padding: 4px 8px;
+            padding: 8px 12px;
             cursor: pointer;
             border-radius: 4px;
+            font-size: 14px;
+            width: 100%;
         }
         .status-banned {
             color: #dc3545;
+            font-weight: 600;
         }
         .status-moderator {
             color: #28a745;
+            font-weight: 600;
+        }
+        .preventive-ban {
+            background: #fff;
+            padding: 15px;
+            border-radius: 8px;
+            margin: 20px 0;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+        }
+        .ban-form {
+            display: flex;
+            gap: 10px;
+            flex-wrap: wrap;
+        }
+        .ban-form input[type="text"] {
+            flex: 1;
+            min-width: 200px;
+            padding: 8px;
+            border: 1px solid #ddd;
+            border-radius: 4px;
+            font-size: 16px;
+        }
+        .ban-form button {
+            padding: 8px 16px;
+        }
+        .error {
+            color: #dc3545;
+            background: #fff;
+            padding: 10px;
+            border-radius: 4px;
+            margin: 10px 0;
+            border: 1px solid #dc3545;
+        }
+        .success {
+            color: #28a745;
+            background: #fff;
+            padding: 10px;
+            border-radius: 4px;
+            margin: 10px 0;
+            border: 1px solid #28a745;
+        }
+        @media (max-width: 600px) {
+            .admin-table {
+                display: block;
+                overflow-x: auto;
+                white-space: nowrap;
+            }
+            .ban-form {
+                flex-direction: column;
+            }
+            .ban-form input[type="text"] {
+                width: 100%;
+            }
+            .ban-form button {
+                width: 100%;
+            }
+            .admin-table th, .admin-table td {
+                padding: 8px;
+            }
         }
     </style>
 </head>
@@ -126,76 +194,80 @@ $users = $stmt->fetchAll(PDO::FETCH_ASSOC);
         </div>
 
         <h2>Preventively Banned Usernames</h2>
-        <table class="admin-table">
-            <thead>
-                <tr>
-                    <th>Username</th>
-                    <th>Banned At</th>
-                    <th>Actions</th>
-                </tr>
-            </thead>
-            <tbody>
-                <?php
-                $stmt = $db->query('SELECT username, created_at FROM banned_usernames ORDER BY created_at DESC');
-                $banned_usernames = $stmt->fetchAll(PDO::FETCH_ASSOC);
-                foreach ($banned_usernames as $banned): ?>
+        <div style="overflow-x: auto;">
+            <table class="admin-table">
+                <thead>
                     <tr>
-                        <td><?= htmlspecialchars($banned['username']) ?></td>
-                        <td><?= $banned['created_at'] ?></td>
-                        <td>
-                            <form method="post" style="display:inline">
-                                <input type="hidden" name="username" value="<?= htmlspecialchars($banned['username']) ?>">
-                                <input type="hidden" name="action" value="preventive_unban">
-                                <button type="submit" class="unban-btn">Unban</button>
-                            </form>
-                        </td>
+                        <th>Username</th>
+                        <th>Banned At</th>
+                        <th>Actions</th>
                     </tr>
-                <?php endforeach; ?>
-            </tbody>
-        </table>
+                </thead>
+                <tbody>
+                    <?php
+                    $stmt = $db->query('SELECT username, created_at FROM banned_usernames ORDER BY created_at DESC');
+                    $banned_usernames = $stmt->fetchAll(PDO::FETCH_ASSOC);
+                    foreach ($banned_usernames as $banned): ?>
+                        <tr>
+                            <td><?= htmlspecialchars($banned['username']) ?></td>
+                            <td><?= $banned['created_at'] ?></td>
+                            <td>
+                                <form method="post" style="display:inline">
+                                    <input type="hidden" name="username" value="<?= htmlspecialchars($banned['username']) ?>">
+                                    <input type="hidden" name="action" value="preventive_unban">
+                                    <button type="submit" class="unban-btn">Unban</button>
+                                </form>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+        </div>
 
         <h2>Users</h2>
-        <table class="admin-table">
-            <thead>
-                <tr>
-                    <th>Username</th>
-                    <th>Status</th>
-                    <th>Created</th>
-                    <th>Actions</th>
-                </tr>
-            </thead>
-            <tbody>
-                <?php foreach ($users as $user): ?>
+        <div style="overflow-x: auto;">
+            <table class="admin-table">
+                <thead>
                     <tr>
-                        <td><?= htmlspecialchars($user['username']) ?></td>
-                        <td>
-                            <?php if ($user['is_blocked']): ?>
-                                <span class="status-banned">Banned</span>
-                            <?php elseif ($user['is_moderator']): ?>
-                                <span class="status-moderator">Moderator</span>
-                            <?php else: ?>
-                                Active
-                            <?php endif; ?>
-                        </td>
-                        <td><?= $user['created_at'] ?></td>
-                        <td>
-                            <?php if (!$user['is_moderator']): ?>
-                                <form method="post" style="display:inline">
-                                    <input type="hidden" name="username" value="<?= htmlspecialchars($user['username']) ?>">
-                                    <?php if ($user['is_blocked']): ?>
-                                        <input type="hidden" name="action" value="unban">
-                                        <button type="submit" class="unban-btn">Unban</button>
-                                    <?php else: ?>
-                                        <input type="hidden" name="action" value="ban">
-                                        <button type="submit" class="ban-btn">Ban</button>
-                                    <?php endif; ?>
-                                </form>
-                            <?php endif; ?>
-                        </td>
+                        <th>Username</th>
+                        <th>Status</th>
+                        <th>Created</th>
+                        <th>Actions</th>
                     </tr>
-                <?php endforeach; ?>
-            </tbody>
-        </table>
+                </thead>
+                <tbody>
+                    <?php foreach ($users as $user): ?>
+                        <tr>
+                            <td><?= htmlspecialchars($user['username']) ?></td>
+                            <td>
+                                <?php if ($user['is_blocked']): ?>
+                                    <span class="status-banned">Banned</span>
+                                <?php elseif ($user['is_moderator']): ?>
+                                    <span class="status-moderator">Moderator</span>
+                                <?php else: ?>
+                                    Active
+                                <?php endif; ?>
+                            </td>
+                            <td><?= $user['created_at'] ?></td>
+                            <td>
+                                <?php if (!$user['is_moderator']): ?>
+                                    <form method="post" style="display:inline">
+                                        <input type="hidden" name="username" value="<?= htmlspecialchars($user['username']) ?>">
+                                        <?php if ($user['is_blocked']): ?>
+                                            <input type="hidden" name="action" value="unban">
+                                            <button type="submit" class="unban-btn">Unban</button>
+                                        <?php else: ?>
+                                            <input type="hidden" name="action" value="ban">
+                                            <button type="submit" class="ban-btn">Ban</button>
+                                        <?php endif; ?>
+                                    </form>
+                                <?php endif; ?>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+        </div>
     </div>
 </body>
 </html> 
\ No newline at end of file
diff --git a/main/login.php b/main/login.php
index 5a9835e..1049627 100644
--- a/main/login.php
+++ b/main/login.php
@@ -66,35 +66,125 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 <html>
 <head>
     <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; style-src 'self' 'unsafe-inline';">
     <title>Text0Nly - Login</title>
     <style>
-        body { font-family: Arial, sans-serif; max-width: 400px; margin: 20px auto; padding: 20px; }
-        .form-group { margin: 10px 0; }
-        input { width: 100%; padding: 8px; margin: 5px 0; }
-        button { width: 100%; padding: 10px; background: #2196F3; color: white; border: none; cursor: pointer; }
-        .error { color: red; }
-        .success { color: green; }
+        body { 
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+            margin: 0;
+            padding: 20px;
+            min-height: 100vh;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            background: #f8f9fa;
+        }
+        .container {
+            width: 100%;
+            max-width: 400px;
+            background: white;
+            padding: 20px;
+            border-radius: 8px;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+            margin-top: 20px;
+        }
+        h2 {
+            margin: 0 0 20px 0;
+            text-align: center;
+            color: #222;
+        }
+        .form-group { 
+            margin: 15px 0; 
+        }
+        input { 
+            width: 100%;
+            padding: 12px;
+            margin: 5px 0;
+            border: 1px solid #ddd;
+            border-radius: 4px;
+            box-sizing: border-box;
+            font-size: 16px;
+        }
+        button { 
+            width: 100%;
+            padding: 12px;
+            background: #222;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 16px;
+            margin-top: 10px;
+        }
+        button:hover {
+            background: #444;
+        }
+        .error { 
+            color: #dc3545;
+            background: #fff;
+            padding: 10px;
+            border-radius: 4px;
+            margin-bottom: 15px;
+            border: 1px solid #dc3545;
+        }
+        .success { 
+            color: #28a745;
+            background: #fff;
+            padding: 10px;
+            border-radius: 4px;
+            margin-bottom: 15px;
+            border: 1px solid #28a745;
+        }
+        .links {
+            text-align: center;
+            margin-top: 20px;
+        }
+        .links a {
+            color: #222;
+            text-decoration: none;
+            margin: 0 10px;
+        }
+        .links a:hover {
+            text-decoration: underline;
+        }
+        @media (max-width: 400px) {
+            body {
+                padding: 10px;
+            }
+            .container {
+                padding: 15px;
+            }
+            h2 {
+                font-size: 1.5em;
+            }
+        }
     </style>
 </head>
 <body>
-    <h2>Login</h2>
-    <?php if ($error): ?>
-        <div class="error"><?= htmlspecialchars($error) ?></div>
-    <?php endif; ?>
-    <?php if ($success): ?>
-        <div class="success"><?= htmlspecialchars($success) ?></div>
-    <?php endif; ?>
-    
-    <form method="post">
-        <div class="form-group">
-            <input type="text" name="username" placeholder="Username" required>
+    <div class="container">
+        <h2>Login</h2>
+        <?php if ($error): ?>
+            <div class="error"><?= htmlspecialchars($error) ?></div>
+        <?php endif; ?>
+        <?php if ($success): ?>
+            <div class="success"><?= htmlspecialchars($success) ?></div>
+        <?php endif; ?>
+        
+        <form method="post" autocomplete="off">
+            <div class="form-group">
+                <input type="text" name="username" placeholder="Username" required autocomplete="username">
+            </div>
+            <div class="form-group">
+                <input type="password" name="password" placeholder="Password" required autocomplete="current-password">
+            </div>
+            <button type="submit">Login</button>
+        </form>
+        <div class="links">
+            <a href="register.php">Register</a>
+            <a href="index.php">Back to chat</a>
         </div>
-        <div class="form-group">
-            <input type="password" name="password" placeholder="Password" required>
-        </div>
-        <button type="submit">Login</button>
-    </form>
-    <p><a href="register.php">Register</a> | <a href="index.php">Back to chat</a></p>
+    </div>
 </body>
 </html>
 <?php ob_end_flush(); ?> 
\ No newline at end of file
diff --git a/main/register.php b/main/register.php
index a5839fc..87f73ab 100644
--- a/main/register.php
+++ b/main/register.php
@@ -68,39 +68,137 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 <html>
 <head>
     <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; style-src 'self' 'unsafe-inline';">
     <title>Text0Nly - Registration</title>
     <style>
-        body { font-family: Arial, sans-serif; max-width: 400px; margin: 20px auto; padding: 20px; }
-        .form-group { margin: 10px 0; }
-        input, textarea { width: 100%; padding: 8px; margin: 5px 0; }
-        textarea { height: 100px; }
-        button { width: 100%; padding: 10px; background: #2196F3; color: white; border: none; cursor: pointer; }
-        .error { color: red; }
-        .success { color: green; }
+        body { 
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+            margin: 0;
+            padding: 20px;
+            min-height: 100vh;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            background: #f8f9fa;
+        }
+        .container {
+            width: 100%;
+            max-width: 400px;
+            background: white;
+            padding: 20px;
+            border-radius: 8px;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+            margin-top: 20px;
+        }
+        h2 {
+            margin: 0 0 20px 0;
+            text-align: center;
+            color: #222;
+        }
+        .form-group { 
+            margin: 15px 0; 
+        }
+        input, textarea { 
+            width: 100%;
+            padding: 12px;
+            margin: 5px 0;
+            border: 1px solid #ddd;
+            border-radius: 4px;
+            box-sizing: border-box;
+            font-size: 16px;
+        }
+        textarea { 
+            height: 120px;
+            resize: vertical;
+        }
+        button { 
+            width: 100%;
+            padding: 12px;
+            background: #222;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 16px;
+            margin-top: 10px;
+        }
+        button:hover {
+            background: #444;
+        }
+        .error { 
+            color: #dc3545;
+            background: #fff;
+            padding: 10px;
+            border-radius: 4px;
+            margin-bottom: 15px;
+            border: 1px solid #dc3545;
+        }
+        .success { 
+            color: #28a745;
+            background: #fff;
+            padding: 10px;
+            border-radius: 4px;
+            margin-bottom: 15px;
+            border: 1px solid #28a745;
+        }
+        .links {
+            text-align: center;
+            margin-top: 20px;
+        }
+        .links a {
+            color: #222;
+            text-decoration: none;
+        }
+        .links a:hover {
+            text-decoration: underline;
+        }
+        .requirements {
+            font-size: 0.9em;
+            color: #666;
+            margin: 5px 0;
+        }
+        @media (max-width: 400px) {
+            body {
+                padding: 10px;
+            }
+            .container {
+                padding: 15px;
+            }
+            h2 {
+                font-size: 1.5em;
+            }
+        }
     </style>
 </head>
 <body>
-    <h2>Registration</h2>
-    <?php if ($error): ?>
-        <div class="error"><?= htmlspecialchars($error) ?></div>
-    <?php endif; ?>
-    <?php if ($success): ?>
-        <div class="success"><?= htmlspecialchars($success) ?></div>
-    <?php endif; ?>
-    
-    <form method="post">
-        <div class="form-group">
-            <input type="text" name="username" placeholder="Username" required maxlength="50">
+    <div class="container">
+        <h2>Registration</h2>
+        <?php if ($error): ?>
+            <div class="error"><?= htmlspecialchars($error) ?></div>
+        <?php endif; ?>
+        <?php if ($success): ?>
+            <div class="success"><?= htmlspecialchars($success) ?></div>
+        <?php endif; ?>
+        
+        <form method="post" autocomplete="off">
+            <div class="form-group">
+                <input type="text" name="username" placeholder="Username" required maxlength="50" pattern="[a-zA-Z0-9_]+" autocomplete="username">
+                <div class="requirements">Only letters, numbers and underscore allowed</div>
+            </div>
+            <div class="form-group">
+                <input type="password" name="password" placeholder="Password" required minlength="8" autocomplete="new-password">
+                <div class="requirements">Minimum 8 characters</div>
+            </div>
+            <div class="form-group">
+                <textarea name="pgp_key" placeholder="PGP key (optional)" maxlength="4096"></textarea>
+            </div>
+            <button type="submit">Register</button>
+        </form>
+        <div class="links">
+            <a href="index.php">Back to chat</a>
         </div>
-        <div class="form-group">
-            <input type="password" name="password" placeholder="Password (min 8 characters)" required minlength="8">
-        </div>
-        <div class="form-group">
-            <textarea name="pgp_key" placeholder="PGP key (optional)"></textarea>
-        </div>
-        <button type="submit">Register</button>
-    </form>
-    <p><a href="index.php">Back to chat</a></p>
+    </div>
 </body>
 </html>
 <?php ob_end_flush(); ?> 
\ No newline at end of file
