<!-- Main Content Wrapper -->
<main class="main-content">
  <?php echo $content; ?>
</main>

<style>
  /* Professional Main Content Area */
  .main-content {
    padding: 20px;
    background: #f0f9ff;
    min-height: calc(100vh - 60px);
  }

  @media (max-width: 991px) {
    .main-content {
      padding: 15px;
    }
  }
</style>
