عدل لي هذا الكود <?php
session_start();


$submit = "";

$status = "OK";
$msg = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {

    $email = $_POST['email'];
    $password = $_POST['password'];




    if (empty($email)) {
        $msg .= "<center><font  size='4px' face='Verdana' size='1' color='red'>Please Enter Valid Phone Number. </font></center>";


        $status = "NOTOK";

    }


    if (empty($password)) {
        $msg .= "<center><font  size='4px' face='Verdana' size='1' color='red'>Please Enter Your password.</font></center>";

        $status = "NOTOK";
    }

    if ($status == "OK") {

        include('db_connect.php');


        $result = mysqli_query($con, "SELECT * FROM admin WHERE admin_email='$email' and admin_password='$password'");

        $count = mysqli_num_rows($result);

        $result2 = mysqli_query($con, "SELECT * FROM owner WHERE owner_email='$email' and owner_password='$password' AND owner_status=1");

        $count2 = mysqli_num_rows($result2);


        if ($count == 1) {

            $row = mysqli_fetch_array($result);

            $_SESSION['email'] = $row['admin_email'];
            $_SESSION['key']=(rand(1000,9999));



            header("location:admin/dashboard.php");
        }
        else if ($count2 == 1) {

            $row = mysqli_fetch_array($result2);

            $_SESSION['owner_id'] = $row['owner_id'];
            $_SESSION['owner_email'] = $row['owner_email'];
            $_SESSION['status'] = $row['owner_status'];
            $_SESSION['user_type'] = $row['owner_type'];
            $_SESSION['key']=mt_rand(1000,9999);


            header("location:dashboard.php");
        } else {


            $msg = "<center><font  size='4px' face='Verdana' size='1' color='red'>Wrong Email or Password !!!.</font></center>";

        }
    }

}


?>


<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <title>Super POS | Log in</title>
  <!-- Tell the browser to be responsive to screen width -->
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <!-- Font Awesome -->
  <link rel="stylesheet" href="plugins/fontawesome-free/css/all.min.css">
  <!-- Ionicons -->
  <link rel="stylesheet" href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
  <!-- icheck bootstrap -->
  <link rel="stylesheet" href="plugins/icheck-bootstrap/icheck-bootstrap.min.css">
  <!-- Theme style -->
  <link rel="stylesheet" href="dist/css/adminlte.min.css">
  <!-- Google Font: Source Sans Pro -->
  <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700" rel="stylesheet">
  
  
 

  
</head>
<body class="hold-transition login-page">
<div class="login-box">
  <div class="login-logo">
    <b>Super POS</b><br>Admin Panel
  </div>
  <!-- /.login-logo -->
  <div class="card">
    <div class="card-body login-card-body">
      <p class="login-box-msg">Sign in to start your session</p>

      <form action="index.php" method="post">
        <div class="input-group mb-3">
          <input type="email" class="form-control" name="email" placeholder="Email" required>
          <div class="input-group-append">
            <div class="input-group-text">
              <span class="fas fa-envelope"></span>
            </div>
          </div>
        </div>
        <div class="input-group mb-3">
          <input type="password" class="form-control" name="password" placeholder="Password" required>
          <div class="input-group-append">
            <div class="input-group-text">
              <span class="fas fa-lock"></span>
            </div>
          </div>
        </div>
        <div>

          <!-- /.col -->
          <div>
            <button type="submit" class="btn btn-primary btn-block">Sign In</button>
          </div>
          <!-- /.col -->
          
       </br>
  <div class="text-center">
    <a href="admin/reg.php" class="btn btn-danger btn-block">Register a new user</a>
</div>

        <?php
          if ($_SERVER["REQUEST_METHOD"] == "POST") {
            echo "<div  align='center'>" . $msg . "</div";
          }
          ?>

        </div>
      </form>


    </div>
    <!-- /.login-card-body -->
  </div>
</div>
<!-- /.login-box -->




<!-- jQuery -->
<script src="plugins/jquery/jquery.min.js"></script>
<!-- Bootstrap 4 -->
<script src="plugins/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- AdminLTE App -->
<script src="dist/js/adminlte.min.js"></script>





</body>
</html>
 ليكون بشكل جذاب مع الوان متناسقة