Using changes page appearance

I visited this page to figure out how to make a page require a login before displaying its content. It works great but now it changes everything about how the page looks.

My website is here: https://www.paulegavin.net , the problem page is “Students & Clients.”

It looks fine if a user is logged in but looks different if they’re not. I’d like it to look the same as the rest of the site.

I imagine I’m putting the “if login” in the wrong place. This is the code I currently have for the page template:

<?php
/*
Template Name: Students & Clients
*/
?>

<?php
if(!is_home() ){
	get_header(); ?>
	<div id="<?php $meta = get_post_meta($post->ID, $field['id'], true); echo substr($meta['connection'][0], 1); ?>" class="section single">

<?php
}
?>
    <div class="heading">
      <div class="heading_cont">
		<a href="#main" class="go_up"></a>
        <h1><?php the_title(); ?></h1>
        <span class="heading_bg"></span>
        <!--end heading_bg-->
      </div>
      <!--end heading_cont-->
    </div>
    <!--end heading-->
                        <?php if(is_user_logged_in()):?>
    <div class="content_left">

	<?php
	if(!is_home()){
		while (have_posts()) { the_post();
			the_content('');
		}
		wp_reset_query();  // Restore global post data
	}
	else
	{
		the_content('');
	}?>
    </div>

    <!--end content_left-->

	<div class="sidebar_right">
		<ul class="sidebar">
			<?php dynamic_sidebar( 'sidebar-right' ); ?>
		</ul>
    </div>
    <!--end sidebar_right-->

<?php
if(!is_home()){?>
	</div>
<?php get_footer();
}
?>
<?php else:
wp_die('Sorry, you must first <a href="/wp-login.php">log in</a> to view this page. You can <a href="/wp-login.php?action=register">register free here</a>.');
endif;?>

Thanks very much!