Astra_LearnDash::add_dynamic_styles( String $dynamic_css, String $dynamic_css_filtered = '' )

		public function add_dynamic_styles( $dynamic_css, $dynamic_css_filtered = '' ) {

			$active_ld_theme = '';

			if ( is_callable( 'LearnDash_Theme_Register::get_active_theme_key' ) ) {
				$active_ld_theme = LearnDash_Theme_Register::get_active_theme_key();
			}

			if ( 'ld30' === $active_ld_theme ) {
				return $dynamic_css;
			}

			$dynamic_css .= self::ld_static_css();
			/**
			 * - Variable Declaration
			 */
			$is_site_rtl  = is_rtl();
			$link_color   = astra_get_option( 'link-color' );
			$theme_color  = astra_get_option( 'theme-color' );
			$text_color   = astra_get_option( 'text-color' );
			$link_h_color = astra_get_option( 'link-h-color' );

			$body_font_family = astra_body_font_family();

			$link_forground_color  = astra_get_foreground_color( $link_color );
			$theme_forground_color = astra_get_foreground_color( $theme_color );
			$btn_color             = astra_get_option( 'button-color' );
			if ( empty( $btn_color ) ) {
				$btn_color = $link_forground_color;
			}

			$btn_h_color = astra_get_option( 'button-h-color' );
			if ( empty( $btn_h_color ) ) {
				$btn_h_color = astra_get_foreground_color( $link_h_color );
			}
			$btn_bg_color   = astra_get_option( 'button-bg-color', '', $theme_color );
			$btn_bg_h_color = astra_get_option( 'button-bg-h-color', '', $link_h_color );

			$btn_border_radius = astra_get_option( 'button-radius' );

			$archive_post_title_font_size = astra_get_option( 'font-size-page-title' );

			$css_output = array(
				'body #learndash_lessons a, body #learndash_quizzes a, body .expand_collapse a, body .learndash_topic_dots a, body .learndash_topic_dots a > span, body #learndash_lesson_topics_list span a, body #learndash_profile a, body #learndash_profile a span' => array(
					'font-family' => astra_get_font_family( $body_font_family ),
				),
				'body #ld_course_list .btn, body a.btn-blue, body a.btn-blue:visited, body a#quiz_continue_link, body .btn-join, body .learndash_checkout_buttons input.btn-join[type="button"], body #btn-join, body .learndash_checkout_buttons input.btn-join[type="submit"], body .wpProQuiz_content .wpProQuiz_button2' => array(
					'color'            => $btn_color,
					'border-color'     => $btn_bg_color,
					'background-color' => $btn_bg_color,
					'border-radius'    => astra_get_css_value( $btn_border_radius, 'px' ),
				),
				'body #ld_course_list .btn:hover, body #ld_course_list .btn:focus, body a.btn-blue:hover, body a.btn-blue:focus, body a#quiz_continue_link:hover, body a#quiz_continue_link:focus, body .btn-join:hover, body .learndash_checkout_buttons input.btn-join[type="button"]:hover, body .btn-join:focus, body .learndash_checkout_buttons input.btn-join[type="button"]:focus, .wpProQuiz_content .wpProQuiz_button2:hover, .wpProQuiz_content .wpProQuiz_button2:focus, body #btn-join:hover, body .learndash_checkout_buttons input.btn-join[type="submit"]:hover, body #btn-join:focus, body .learndash_checkout_buttons input.btn-join[type="submit"]:focus' => array(
					'color'            => $btn_h_color,
					'border-color'     => $btn_bg_h_color,
					'background-color' => $btn_bg_h_color,
				),
				'body dd.course_progress div.course_progress_blue, body .wpProQuiz_content .wpProQuiz_time_limit .wpProQuiz_progress' => array(
					'background-color' => $theme_color,
				),
				'body #learndash_lessons a, body #learndash_quizzes a, body .expand_collapse a, body .learndash_topic_dots a, body .learndash_topic_dots a > span, body #learndash_lesson_topics_list span a, body #learndash_profile a, #learndash_profile .profile_edit_profile a, body #learndash_profile .expand_collapse a, body #learndash_profile a span, #lessons_list .list-count, #quiz_list .list-count' => array(
					'color' => $link_color,
				),
				'.learndash .notcompleted:before, #learndash_profile .notcompleted:before, .learndash_topic_dots ul .topic-notcompleted span:before, .learndash_navigation_lesson_topics_list .topic-notcompleted span:before, .learndash_navigation_lesson_topics_list ul .topic-notcompleted span:before, .learndash .topic-notcompleted span:before' => array(
					'color' => astra_hex_to_rgba( $text_color, .5 ),
				),
				'body .thumbnail.course .ld_course_grid_price, body .thumbnail.course .ld_course_grid_price.ribbon-enrolled, body #learndash_lessons #lesson_heading, body #learndash_profile .learndash_profile_heading, body #learndash_quizzes #quiz_heading, body #learndash_lesson_topics_list div > strong, body .learndash-pager span a, body #learndash_profile .learndash_profile_quiz_heading' => array(
					'background-color' => $theme_color,
					'color'            => $theme_forground_color,
				),
				'.learndash .completed:before, #learndash_profile .completed:before, .learndash_topic_dots ul .topic-completed span:before, .learndash_navigation_lesson_topics_list .topic-completed span:before, .learndash_navigation_lesson_topics_list ul .topic-completed span:before, .learndash .topic-completed span:before, body .list_arrow.lesson_completed:before' => array(
					'color' => $theme_color,
				),
				'body .thumbnail.course .ld_course_grid_price:before' => array(
					'border-top-color'   => astra_hex_to_rgba( $theme_color, .75 ),
					'border-right-color' => astra_hex_to_rgba( $theme_color, .75 ),
				),
				'body .wpProQuiz_loadQuiz, body .wpProQuiz_lock' => array(
					'border-color'     => astra_hex_to_rgba( $link_color, .5 ),
					'background-color' => astra_hex_to_rgba( $link_color, .1 ),
				),
				'#ld_course_list .entry-title' => array(
					'font-size' => astra_responsive_font( $archive_post_title_font_size, 'desktop' ),
				),
			);

			if ( ! astra_get_option( 'learndash-lesson-serial-number' ) ) {
				$css_output['body #course_list .list-count, body #lessons_list .list-count, body #quiz_list .list-count'] = array(
					'display' => 'none',
				);
				$css_output['body #course_list > div h4 > a, body #lessons_list > div h4 > a, body #quiz_list > div h4 > a, body #learndash_course_content .learndash_topic_dots ul > li a'] = array(
					'padding-left' => '.75em',
					'margin-left'  => 'auto',
				);
			}
			if ( ! astra_get_option( 'learndash-differentiate-rows' ) ) {
				$css_output['body #course_list > div:nth-of-type(odd), body #lessons_list > div:nth-of-type(odd), body #quiz_list > div:nth-of-type(odd), body #learndash_lesson_topics_list .learndash_topic_dots ul > li.nth-of-type-odd'] = array(
					'background' => 'none',
				);
			}

			/* Parse CSS from array() */
			$css_output = astra_parse_css( $css_output );

			$tablet_typography = array(
				'#ld_course_list .entry-title' => array(
					'font-size' => astra_responsive_font( $archive_post_title_font_size, 'tablet', 30 ),
				),
			);
			/* Parse CSS from array()*/
			$css_output .= astra_parse_css( $tablet_typography, '', astra_get_tablet_breakpoint() );

			if ( $is_site_rtl ) {
				$mobile_min_width_css = array(
					'body #learndash_profile .profile_edit_profile' => array(
						'position' => 'absolute',
						'top'      => '15px',
						'left'     => '15px',
					),
				);
			} else {
				$mobile_min_width_css = array(
					'body #learndash_profile .profile_edit_profile' => array(
						'position' => 'absolute',
						'top'      => '15px',
						'right'    => '15px',
					),
				);
			}

			/* Parse CSS from array() -> min-width: (mobile-breakpoint + 1) px */
			$css_output .= astra_parse_css( $mobile_min_width_css, astra_get_mobile_breakpoint( '', 1 ) );

			$mobile_typography = array(
				'#ld_course_list .entry-title'          => array(
					'font-size' => astra_responsive_font( $archive_post_title_font_size, 'mobile', 30 ),
				),
				'#learndash_next_prev_link a'           => array(
					'width' => '100%',
				),
				'#learndash_next_prev_link a.prev-link' => array(
					'margin-bottom' => '1em',
				),
				'#ld_course_info_mycourses_list .ld-course-info-my-courses .ld-entry-title' => array(
					'margin' => '0 0 20px',
				),
			);

			/* Parse CSS from array() -> max-width: (mobile-breakpoint) px */
			$css_output .= astra_parse_css( $mobile_typography, '', astra_get_mobile_breakpoint() );

			if ( $is_site_rtl ) {
				$mobile_typography_lang_direction_css = array(
					'#ld_course_info_mycourses_list .ld-course-info-my-courses img' => array(
						'display'      => 'block',
						'margin-right' => 'initial',
						'max-width'    => '100%',
						'margin'       => '10px 0',
					),
				);
			} else {
				$mobile_typography_lang_direction_css = array(
					'#ld_course_info_mycourses_list .ld-course-info-my-courses img' => array(
						'display'     => 'block',
						'margin-left' => 'initial',
						'max-width'   => '100%',
						'margin'      => '10px 0',
					),
				);
			}

			/* Parse CSS from array() -> max-width: (mobile-breakpoint) px */
			$css_output .= astra_parse_css( $mobile_typography_lang_direction_css, '', astra_get_mobile_breakpoint() );

			$dynamic_css .= apply_filters( 'astra_theme_learndash_dynamic_css', $css_output );

			return $dynamic_css;
		}