Execute Customizer CSS To External File and Enque

Hello I want Execute my current Customizer CSS to external file and enqueue instead of execute it as Inline css in wp-head section.
Is there any Way to do it?
Please Suggest me. My Idea is to make header more clean.
Below is Code that executed CSS from Customizer to header/

<?php
function bluth_custom_css() {
global $blu_css_options;

	$blu_css_options = array(
	'custom_css' 					=> html_entity_decode(of_get_option('custom_css')),
	);

?>
<style type="text/css"> 

<?php 

	/*
		BACKGROUND
	*/

	// If there's a background image
	if(bl_utilities::get_option('bl_background_image')){
		$background_styling = 'url("' . bl_utilities::get_option('bl_background_image') . '") no-repeat fixed right top;';
		$background_size = 'cover';
	}
	// If there's a custom pattern
	elseif(bl_utilities::get_option('bl_background_pattern_custom')){
		$background_styling = 'url("' . bl_utilities::get_option('bl_background_pattern_custom') . '") repeat;';
		$background_size = 'auto';
	}
	// If there's a pattern
	elseif(bl_utilities::get_option('bl_background_pattern')){
		$background_styling = 'url("' . get_template_directory_uri() . '/assets/img/pattern/large/' . bl_utilities::get_option('bl_background_pattern') . '.png") repeat;';
		$background_size = 'auto';
	}
	// If there's nothing, then use the color
	else{
		$background_styling = bl_utilities::get_option('bl_background_color');
		$background_size = 'auto';
	} ?>

	/*
		CSS
	*/

blockquote{
    width: <?php echo get_theme_mod('bquote_width', '92%'); ?> !important;
    color: <?php echo get_theme_mod('bquote_text_color', '#505050'); ?>;
    background:<?php echo get_theme_mod('bquote_bg_color', '#eeeeee'); ?> !important;

}

blockquote p{
    font-size: <?php echo get_theme_mod('bquote_font_size', '14px'); ?> !important;
    color: <?php echo get_theme_mod('bquote_text_color', '#505050'); ?>;}

blockquote.style1 {
    font-style: italic;
    width: <?php echo get_theme_mod('blockquote_width', '200px'); ?> !important;
    margin: 0.25em 0;
    padding: 1.25em 20px !important;
    line-height: 1.45 !important;
    position: relative;
    color: <?php echo get_theme_mod('blockquote_text_color', '#fff'); ?>;
    background:<?php echo get_theme_mod('blockquote_bg_color', '#fff'); ?> !important;
    margin-left:20px;
    margin-right: 0;
}

blockquote.style1 p{
    font-size: <?php echo get_theme_mod('blockquote_font_size', '18px'); ?> !important;
    font-style: italic;
    line-height: 1.45 !important;
    position: relative;
    color: <?php echo get_theme_mod('blockquote_text_color', '#fff'); ?>;}

	@media screen and (min-width: 824px) {
.mwidget{
display:none !important;
}
}
@media all and (max-width:824px)
{
.adlinks {
  display:none !important;
}
}

.mwidget, .mwidget p {
  color:<?php echo bl_utilities::get_option('bl_mwidget_text_color');?> !important;
  width:98%;
  display: block;
  margin: 20px 0 0 20px;
}

.mwidget a, .mwidget a:hover  {
  color:<?php echo bl_utilities::get_option('bl_miwdget_link_color');?> !important ;
  text-decoration:<?php bl_utilities::get_option('bl_miwdget_link_decoration');?> !important;
}
	body{
		background: <?php echo $background_styling; ?>;
		background-size: <?php echo $background_size; ?>;
	}
	h1, h2, h3, h4, h5, h6, .widget_calendar table > caption{
 		letter-spacing: <?php echo bl_utilities::get_option('bl_heading_font_letter_spacing'); ?>;
 	}

 	a.menu-brand:hover, a.brand-image:hover{
 	    background-color:<?php echo bl_utilities::get_option('bl_brand_bg_color'); ?> !important;   }

.brand-text span, .brand-text, .brand-image
{
 	    color:<?php echo bl_utilities::get_option('bl_brand_color'); ?> !important;
 	    background-color:<?php echo bl_utilities::get_option('bl_brand_bg_color'); ?> !important;

 	}
 	.header-bg{
 	    background:url("<?php echo bl_utilities::get_option('bl_header_background_image'); ?>");
 	    background-repeat: no-repeat;
background-position: center center;
background-size: cover;
width:100%;
margin-top: 50px;

 	}

 .box {
  background:<?php echo bl_utilities::get_option('bl_widget_bg_color'); ?> !important;
}
#side-bar .widget-head, #footer-body .widget-head{line-height:<?php echo bl_utilities::get_option('bl_widget_head_line_height'); ?> !important;}
#side-bar .widget-head {
    background-color:<?php echo bl_utilities::get_option('bl_widget_titlebg_color'); ?> !important;
}
 	#side-bar ul li {
 	    background:url("<?php echo bl_utilities::get_option('bl_sidebar_bullet_img'); ?>");
 	    background-repeat:no-repeat;
 	    padding: 0px 0 0px 20px;
 	    margin: 0.5em 0 0.5em 0;
  line-height: 1.5em;
  background-position: 4px 8px;
 	}

 #side-bar ul li:hover {
 	    background:url("<?php echo bl_utilities::get_option('bl_sidebar_bullethover_img'); ?>")";
 	    background-repeat:no-repeat;
 	    padding: 0px 0 0px 20px;
 	}
	.container{
		width: <?php echo bl_utilities::get_option('bl_layout_width'); ?>px;
	}
	#masthead a, .menu-main, .menu-main ul, .menu-main a, .menu a{
		color: <?php echo bl_utilities::get_option('bl_menu_color'); ?> !important;
	}
	#masthead .menu-main a:hover, .menu a:hover{
		background: <?php echo bl_utilities::get_option('bl_header_hover_background_color'); ?>;
		border-color: <?php echo bl_utilities::get_option('bl_header_hover_background_color'); ?> !important;
		color: <?php echo bl_utilities::get_option('bl_header_hover_font_color'); ?> !important;
	}

	/* THEME COLOR */
 	.nav > li.open > a, .nav > li > a:hover, .nav > li.open > a:hover, .nav > li > a:focus, .nav > li.open > a:focus, .nav > li.open > a:focus, .nav > li.open > a span, .dropdown-menu > li > a:hover, .dropdown-menu > li > a:focus {
 		color:<?php echo bl_utilities::get_option('bl_menu_color'); ?>!important;
 	}
 	.nav li a:hover .caret, .nav li.open a .caret, .nav li.open a:hover .caret, .nav li.open a:focus .caret{
 		border-bottom-color:<?php echo bl_utilities::get_option('bl_menu_color'); ?>;
 		border-top-color:<?php echo bl_utilities::get_option('bl_menu_color'); ?>!important;
 	}
 	.top-color, .top-line, .nav-line,.widget_tag_cloud .tagcloud,.gallery-item a:after,article.type-portfolio .moretag, article.type-portfolio .more-link{
 		background-color:<?php echo bl_utilities::get_option('bl_sidebar_link_color'); ?>!important;
 	} 

 		.top-color, .top-line, .nav-line,.widget_tag_cloud .tagcloud a:hover,.gallery-item a:after,article.type-portfolio .moretag:hover,article.type-portfolio .more-link:hover{
 		background-color:<?php echo bl_utilities::get_option('bl_sidebar_linkhover_color'); ?>!important;
 	}
 	.site-footer a, #footer-body a, .site-footer a:hover,  #footer-body a:hover{
 	color:<?php echo bl_utilities::get_option('bl_footer_link_color'); ?>!important;
 	}
 	.dropdown-menu{
 		border-top: 2px solid <?php echo bl_utilities::get_option('bl_menu_color'); ?>!important;
 	} 

 	.entry-content a, .entry-container a{
 	    text-decoration:<?php echo bl_utilities::get_option('bl_main_link_decoration'); ?>!important;
 	}

 	.entry-content a, .entry-container a{
 	    text-decoration:<?php echo bl_utilities::get_option('bl_main_link_decoration'); ?>!important;
 	     color: <?php echo bl_utilities::get_option('bl_contentarea_link_color'); ?>!important;
 	}

 	.entry-content a:hover, .entry-container a:hover, .entry-container a:hover, a:hover, a:focus {
 	   text-decoration:<?php echo bl_utilities::get_option('bl_main_linkhover_decoration');?> !important;
 	     color: <?php echo bl_utilities::get_option('bl_contentarea_linkhover_color'); ?>!important;

}
 	.pagination > a{
 		border-color: <?php echo bl_utilities::get_option('bl_theme_color'); ?>!important;
 	}
 	.bl_tabs ul li .tab_text a, .bl_tabs ul li .tab_text a, .textwidget ul li a{
 	    text-decoration:<?php echo bl_utilities::get_option('bl_sidebar_link_decoration'); ?> !important;
 	    color: <?php echo bl_utilities::get_option('bl_sidebar_link_color'); ?> !important;
 	}

 	.bl_tabs ul li .tab_text a:hover, .bl_tabs ul li .tab_text a:focus, .textwidget ul li a:hover{
 	    text-decoration:<?php echo bl_utilities::get_option('bl_sidebar_linkhover_decoration'); ?> !important;
 	    color: <?php echo bl_utilities::get_option('bl_sidebar_linkhover_color'); ?> !important;
 	}
 	.bl_tabs ul li .tab_text a span, a{
 		color: <?php echo bl_utilities::get_option('bl_sidebar_link_color'); ?>!important;
 	}
 	.custom-logo span{
 	    font-size:<?php echo bl_utilities::get_option('bl_custom_logo_size'); ?>!important;
 	    color:<?php echo bl_utilities::get_option('bl_customlogo_font_color'); ?> !important;
 	    opacity:<?php echo bl_utilities::get_option('bl_custom_logo_opacity'); ?>!important;
 	}
 	.entry-content h1{font-size:<?php echo bl_utilities::get_option('bl_h1_size'); ?>!important;
 	   color:<?php echo bl_utilities::get_option('bl_h1_font_color'); ?>!important;
 	}
 		.entry-content h2, .widget-body h2{font-size:<?php echo bl_utilities::get_option('bl_h2_size'); ?>!important;
 	   color:<?php echo bl_utilities::get_option('bl_h2_font_color'); ?>!important;
 	}
 		.entry-content h3{font-size:<?php echo bl_utilities::get_option('bl_h3_size'); ?>!important;
 	   color:<?php echo bl_utilities::get_option('bl_h3_font_color'); ?>!important;
 	}

 	.entry-content h4{font-size:<?php echo bl_utilities::get_option('bl_h4_size'); ?>!important;
 	   color:<?php echo bl_utilities::get_option('bl_h4_font_color'); ?>!important;
 	}

 	h3.widget-head, .textwidget h3, .widget-body h3, #footer-widget h3{
font-size:<?php echo bl_utilities::get_option('bl_sidebar_title_size'); ?>!important;}
 .textwidget h3, .widget-body h3,  #footer-widget h3{font-weight:normal;
     text-align: left;
  padding-left: 15px;
 }
.widget-body h2{
text-align: left;
  padding-left: 15px;}
    #side-bar ul li a,
 	.widget_recent_entries li a,
 	.widget_nav_menu ul li a,
 	.widget_categories li a,
 	.widget_recent_comments li a,
 	.widget_pages li a,
 	.widget_meta li a,
 	.widget_rss li a,
 	.widget_archive li a
 	{
 	    font-size:<?php echo bl_utilities::get_option('bl_sidebar_link_size'); ?>!important;
 	    color:<?php echo bl_utilities::get_option('bl_sidebar_link_color'); ?>!important;
 	     text-decoration:<?php echo bl_utilities::get_option('bl_sidebar_link_decoration'); ?>!important;

 	}
 	#side-bar ul li a:hover,
 	.widget_recent_entries li a:hover,
 	.widget_nav_menu ul li a:hover,
 	.widget_categories li a:hover,
 	.widget_recent_comments li a:hover,
 	.widget_pages li a:hover,
 	.widget_meta li a:hover,
 	.widget_rss li a:hover,
 	.widget_archive li a:hover
 	{

 	     text-decoration:<?php echo bl_utilities::get_option('bl_sidebar_linkhover_decoration'); ?>!important;

 	}

 	.entry-content{
 		font-size: <?php echo bl_utilities::get_option('bl_main_font_size'); ?>;
 		line-height:<?php echo bl_utilities::get_option('bl_main_font_line_height'); ?>;
 	}
 	.entry-content, .entry-content p, p{
 		color: <?php echo bl_utilities::get_option('bl_p_font_color'); ?>;
 	}
	.widget-head, .textwidget h3,  #footer-widget h3 {
		color: <?php echo bl_utilities::get_option('bl_widget_header_font_color'); ?> !important;
	}

	/* HEADER SIZE */
	.menu-main{ height: <?php echo bl_utilities::get_option('bl_menu_height'); ?>px; }
	.brand, .menu-brand, .open-menu{ line-height: <?php echo bl_utilities::get_option('bl_menu_height'); ?>px; }
	.menu-wrapper{ top: <?php echo bl_utilities::get_option('bl_menu_height'); ?>px; }
      /* #main{ padding-top: <?php echo bl_utilities::get_option('bl_menu_height')+30; ?>px; } */
	/* HEADER BACKGROUND COLOR */
	.menu-main,
 	.menu-main ul,
 	.menu-wrapper,
 	.menu-search .searchform input{
 		background-color:<?php echo bl_utilities::get_option('bl_header_color'); ?>;
 	}
	.comments{
		background: <?php echo bl_utilities::get_option('bl_comments_background_color'); ?>;
	}
	.comments h3{
		color: <?php echo bl_utilities::get_option('bl_comments_title_font_color'); ?>;
	}
	.site-footer{
		background: <?php echo bl_utilities::get_option('bl_footer_background_color'); ?> !important;
	}
	#footer-body p,
 	.site-footer p{
		color: <?php echo bl_utilities::get_option('bl_footer_font_color'); ?> !important;
	}
	.site-footer .widget-head{
		color: <?php echo bl_utilities::get_option('bl_footer_header_font_color'); ?> !important;
	}
<?php
	if(bl_utilities::get_option('bl_standard_post_color')){

		$post_format_color['standard'] 	= bl_utilities::get_option('bl_standard_post_color');
		$post_format_color['gallery'] 	= bl_utilities::get_option('bl_gallery_post_color');
		$post_format_color['quote'] 	= bl_utilities::get_option('bl_quote_post_color');
		$post_format_color['link'] 		= bl_utilities::get_option('bl_link_post_color');
		$post_format_color['audio'] 	= bl_utilities::get_option('bl_audio_post_color');
		$post_format_color['video'] 	= bl_utilities::get_option('bl_video_post_color');
		$post_format_color['status'] 	= bl_utilities::get_option('bl_status_post_color');
		$post_format_color['sticky'] 	= bl_utilities::get_option('bl_sticky_post_color');

		foreach($post_format_color as $name => $color){ ?>

			.post-format-<?php echo $name ?>,
			.format-<?php echo $name ?> .post-meta ~ * a,
			.format-<?php echo $name ?> .post-meta a:hover,
			.format-<?php echo $name ?> .entry-title a:hover,
			.format-<?php echo $name ?> a.moretag,
			.format-<?php echo $name ?> a.more-link{
				color: <?php echo $color ?>;
			}
			.tab_<?php echo $name ?>,
			.format-<?php echo $name ?> a.moretag:hover,
			.format-<?php echo $name ?> a.more-link:hover,
			.format-<?php echo $name ?> .entry-image .entry-category a,
			.format-<?php echo $name ?> .entry-image > a:after,
			.format-<?php echo $name ?> .page-links > a:hover,
			.format-<?php echo $name ?> .page-links > span{
				background-color: <?php echo $color ?>;
			}
			.format-<?php echo $name ?> *::selection{
				color: #FFFFFF;
				background-color: <?php echo $color ?>;
			}
			.format-<?php echo $name ?> *::-moz-selection{
				color: #FFFFFF;
				background-color: <?php echo $color ?>;
			}
			.format-<?php echo $name ?> a.moretag,
			.format-<?php echo $name ?> a.more-link,
			.format-<?php echo $name ?> .page-links > a:hover,
			.format-<?php echo $name ?> .page-links > span{
				border-color: <?php echo $color; ?>;
			}
			.format-<?php echo $name ?> footer.entry-meta .post-tags li a:hover,
			.post-format-badge.post-format-<?php echo $name; ?>{
				color: <?php echo $color ?>;
			}
			article.type-post.format-<?php echo $name ?> p a,
			article.type-post.format-<?php echo $name ?> p a:hover span:before,
			article.type-post.format-<?php echo $name ?> p a:focus span:before{
				color: <?php echo $color ?>;
			} <?php
		} ?>
		/* sticky post */
		article.sticky:before{
			border-color: <?php echo bl_utilities::get_option('bl_sticky_post_color'); ?> <?php echo bl_utilities::get_option('bl_sticky_post_color'); ?> transparent;
		} <?php

		if(!empty($blu_css_options['sticky_post_color'])){
			echo '.sticky .post-format-badge{color: '.$blu_css_options['sticky_post_color'].'};';
			echo '.sticky .post-meta ~ * a, .sticky .post-meta a:hover, .sticky .entry-title a:hover{color: '.$blu_css_options['sticky_post_color'].';}';
		}
	}

	/*
		CUSTOM CSS
	*/
	echo bl_utilities::get_option('bl_custom_css');

	?>
.brd, img.brd {
  padding: 2px !important;
  border: 2px solid #ccc !important;
  float: left !important;
  margin: 4px 10px 5px 0 !important;
}

.bread-l {float: left;}

.bread-c {text-align:center;
	font-size: 12px;} 

.bread-r {float: right;}
</style>

<?php
if(1 == 2){ ?>
<style type="text/css"> <?php

	if(!empty($blu_css_options['background_color'])){ ?>
	 	body{   }<?php
	}
	if(!empty($blu_css_options['post_header_color'])){ ?>
	 	.entry-title a{ color:<?php echo $blu_css_options['post_header_color']; ?>; }  <?php
	}
	if(!empty($blu_css_options['h1_font_color'])){ ?>
	 	#masthead h1,
	 	#masthead h1 small{
	 		color:<?php echo $blu_css_options['h1_font_color']; ?>;
	 	}
	 	.nav a .caret{
	 		border-bottom-color:<?php echo $blu_css_options['h1_font_color']; ?>;
	 		border-top-color:<?php echo $blu_css_options['h1_font_color']; ?>;
	 	}  <?php
	}

	?>
</style>
<?php }
}
add_action( 'wp_head', 'bluth_custom_css', 100 );
?>