diff --git a/Web.php b/App.php
similarity index 97%
rename from Web.php
rename to App.php
index 608ec9c..c4a4007 100644
--- a/Web.php
+++ b/App.php
@@ -1,6 +1,8 @@
 <?php
 
-require_once __DIR__ . '/Methods.php';
+namespace Web;
+
+require_once __DIR__ . '/HTTPMethod.php';
 require_once __DIR__ . '/Request.php';
 require_once __DIR__ . '/Response.php';
 require_once __DIR__ . '/Context.php';
@@ -9,9 +11,9 @@ require_once __DIR__ . '/ErrorHandler.php';
 require_once __DIR__ . '/Cookies.php';
 
 /**
- * Web is the application controller itself
+ * App is the application controller itself
  */
-class Web
+class App
 {
 	private Router $router;
 	private array $middleware = [];
diff --git a/Context.php b/Context.php
index b1bd4b4..73eca06 100644
--- a/Context.php
+++ b/Context.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 require_once __DIR__ . '/Session.php';
 require_once __DIR__ . '/Validator.php';
 require_once __DIR__ . '/Cookies.php';
@@ -18,7 +20,7 @@ class Context
 	/**
 	 * __construct creates a new Context with request and response
 	 */
-	public function __construct(?Cookie $cookie = null)
+	public function __construct(?Cookies $cookie = null)
 	{
 		$this->request = new Request();
 		$this->response = new Response();
diff --git a/Cookies.php b/Cookies.php
index f3fd307..0d00e42 100644
--- a/Cookies.php
+++ b/Cookies.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * Cookie manager for consistent cookie handling
  */
diff --git a/ErrorHandler.php b/ErrorHandler.php
index 1d54ddc..e85ab4b 100644
--- a/ErrorHandler.php
+++ b/ErrorHandler.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * ErrorHandler manages error pages and exception handling
  */
@@ -37,7 +39,7 @@ class ErrorHandler
 	/**
 	 * handle handles an error with the appropriate handler
 	 */
-	public function handle(Context $context, int $status, string $message = '', ?Exception $exception = null): void
+	public function handle(Context $context, int $status, string $message = '', ?\Exception $exception = null): void
 	{
 		if (isset($this->handlers[$status])) {
 			$handler = $this->handlers[$status];
@@ -56,7 +58,7 @@ class ErrorHandler
 	/**
 	 * handleException handles uncaught exceptions
 	 */
-	public function handleException(Context $context, Exception $exception): void
+	public function handleException(Context $context, \Exception $exception): void
 	{
 		$status = $this->getStatusFromException($exception);
 		$message = $this->debug ? $exception->getMessage() : $this->getDefaultMessage($status);
@@ -71,7 +73,7 @@ class ErrorHandler
 	/**
 	 * getStatusFromException determines HTTP status from exception type
 	 */
-	private function getStatusFromException(Exception $exception): int
+	private function getStatusFromException(\Exception $exception): int
 	{
 		if ($exception instanceof HttpException) {
 			return $exception->getStatusCode();
@@ -106,7 +108,7 @@ class ErrorHandler
 		});
 
 		// 500 Internal Server Error
-		$this->register(500, function(Context $context, int $status, string $message, ?Exception $exception) {
+		$this->register(500, function(Context $context, int $status, string $message, ?\Exception $exception) {
 			$accept = $context->request->header('accept') ?? '';
 
 			if (str_contains($accept, 'application/json')) {
@@ -125,7 +127,7 @@ class ErrorHandler
 	/**
 	 * renderDefaultError renders a generic error response
 	 */
-	private function renderDefaultError(Context $context, int $status, string $message, ?Exception $exception): void
+	private function renderDefaultError(Context $context, int $status, string $message, ?\Exception $exception): void
 	{
 		$message = $message ?: $this->getDefaultMessage($status);
 		$accept = $context->request->header('accept') ?? '';
@@ -228,7 +230,7 @@ HTML;
 	/**
 	 * render500Page renders a 500 error page
 	 */
-	private function render500Page(string $message, ?Exception $exception): string
+	private function render500Page(string $message, ?\Exception $exception): string
 	{
 		$message = htmlspecialchars($message ?: 'Internal Server Error');
 		$debugInfo = '';
@@ -320,7 +322,7 @@ HTML;
 	/**
 	 * renderErrorPage renders a generic error page
 	 */
-	private function renderErrorPage(int $status, string $message, ?Exception $exception): string
+	private function renderErrorPage(int $status, string $message, ?\Exception $exception): string
 	{
 		$message = htmlspecialchars($message);
 		$debugInfo = '';
@@ -408,11 +410,11 @@ HTML;
 /**
  * HttpException base class for HTTP exceptions
  */
-class HttpException extends Exception
+class HttpException extends \Exception
 {
 	protected int $statusCode;
 
-	public function __construct(int $statusCode, string $message = '', int $code = 0, Exception $previous = null)
+	public function __construct(int $statusCode, string $message = '', int $code = 0, \Exception $previous = null)
 	{
 		$this->statusCode = $statusCode;
 		parent::__construct($message, $code, $previous);
diff --git a/HTTPMethod.php b/HTTPMethod.php
index 491461f..87586b8 100644
--- a/HTTPMethod.php
+++ b/HTTPMethod.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * HTTPMethod represents an HTTP method
  */
diff --git a/Request.php b/Request.php
index 23990d1..e6a5b8a 100644
--- a/Request.php
+++ b/Request.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * Request represents an incoming HTTP request
  */
diff --git a/Response.php b/Response.php
index d23c35f..1a75460 100644
--- a/Response.php
+++ b/Response.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 require_once __DIR__ . '/Cookies.php';
 
 /**
diff --git a/Router.php b/Router.php
index 3927ab8..b6ac806 100644
--- a/Router.php
+++ b/Router.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 class Router
 {
 	private array $routes = [];
diff --git a/Session.php b/Session.php
index f78d896..63781a1 100644
--- a/Session.php
+++ b/Session.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * Session provides session management with flash messages and CSRF protection
  */
diff --git a/Validator.php b/Validator.php
index 9d0045a..9407b82 100644
--- a/Validator.php
+++ b/Validator.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * Validator provides input validation with chainable rules
  */
diff --git a/auth/Auth.php b/auth/Auth.php
index ff0a724..a57d4bc 100644
--- a/auth/Auth.php
+++ b/auth/Auth.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 require_once __DIR__ . '/User.php';
 require_once __DIR__ . '/../Session.php';
 require_once __DIR__ . '/../Cookies.php';
@@ -18,7 +20,7 @@ class Auth
 	const REMEMBER_COOKIE = 'remember_token';
 	const REMEMBER_DURATION = 2592000; // 30 days in seconds
 
-	public function __construct(Session $session, ?Cookie $cookie = null, array $config = [])
+	public function __construct(Session $session, ?Cookies $cookie = null, array $config = [])
 	{
 		$this->session = $session;
 		$this->cookie = $cookie ?: new Cookies([
diff --git a/auth/AuthMiddleware.php b/auth/AuthMiddleware.php
index a7f047b..2a3e23c 100644
--- a/auth/AuthMiddleware.php
+++ b/auth/AuthMiddleware.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 require_once __DIR__ . '/Auth.php';
 
 /**
diff --git a/auth/User.php b/auth/User.php
index f27d37d..c4fcdf0 100644
--- a/auth/User.php
+++ b/auth/User.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace Web;
+
 /**
  * User model represents an authenticated user for auth functionality only
  */