diff --git a/inc/header-functions.php b/inc/header-functions.php
index 83f2945e..8cddb63f 100644
--- a/inc/header-functions.php
+++ b/inc/header-functions.php
@@ -81,22 +81,7 @@ function spacious_cart_icon() {
 		if ( ( get_theme_mod( 'spacious_cart_icon', 0 ) == 1 ) && class_exists( 'woocommerce' ) ) :
 			?>
 			<div class="cart-wrapper">
-				<div class="spacious-woocommerce-cart-views">
-
-					<!-- Show cart icon with total cart item -->
-					<?php $cart_url = function_exists( 'wc_get_cart_url' ) ? wc_get_cart_url() : WC()->cart->get_cart_url(); ?>
-
-					<a href="<?php echo esc_url( $cart_url ); ?>" class="wcmenucart-contents">
-						<i class="fa fa-shopping-cart"></i>
-						<span class="cart-value"><?php echo wp_kses_data( WC()->cart->get_cart_contents_count() ); ?></span>
-					</a>
-
-					<!-- Show total cart price -->
-					<div class="spacious-woocommerce-cart-wrap">
-						<div class="spacious-woocommerce-cart"><?php esc_html_e( 'Total', 'spacious' ); ?></div>
-						<div class="cart-total"><?php echo wp_kses_data( WC()->cart->get_cart_subtotal() ); ?></div>
-					</div>
-				</div>
+				<?php spacious_cart_icon_views(); ?>
 
 				<!-- WooCommerce Cart Widget -->
 				<?php the_widget( 'WC_Widget_Cart', '' ); ?>
@@ -106,6 +91,114 @@ function spacious_cart_icon() {
 		endif;
 	}
 
+	// Registered with the default renderer, so a child theme overriding spacious_cart_icon() keeps its own markup.
+	add_filter( 'woocommerce_add_to_cart_fragments', 'spacious_cart_icon_fragment' );
+	add_action( 'wp_enqueue_scripts', 'spacious_cart_icon_scripts' );
+
+endif;
+
+if ( ! function_exists( 'spacious_cart_icon_views' ) ) :
+
+	/**
+	 * Output the header cart icon, item count and total.
+	 *
+	 * Shared by the initial render and the WooCommerce cart fragment so both stay identical.
+	 */
+	function spacious_cart_icon_views() {
+		$cart_url = function_exists( 'wc_get_cart_url' ) ? wc_get_cart_url() : WC()->cart->get_cart_url();
+		?>
+		<div class="spacious-woocommerce-cart-views">
+
+			<!-- Show cart icon with total cart item -->
+
+			<a href="<?php echo esc_url( $cart_url ); ?>" class="wcmenucart-contents">
+				<i class="fa fa-shopping-cart"></i>
+				<span class="cart-value"><?php echo wp_kses_data( WC()->cart->get_cart_contents_count() ); ?></span>
+			</a>
+
+			<!-- Show total cart price -->
+			<div class="spacious-woocommerce-cart-wrap">
+				<div class="spacious-woocommerce-cart"><?php esc_html_e( 'Total', 'spacious' ); ?></div>
+				<div class="cart-total"><?php echo wp_kses_data( WC()->cart->get_cart_subtotal() ); ?></div>
+			</div>
+		</div>
+		<?php
+	}
+
+endif;
+
+if ( ! function_exists( 'spacious_cart_icon_fragment' ) ) :
+
+	/**
+	 * Keep the header cart icon in sync when the cart changes via AJAX.
+	 *
+	 * Leaves alone a fragment that a plugin or child theme already supplies for the same selector.
+	 *
+	 * @param array $fragments Cart fragments, keyed by the CSS selector they replace.
+	 * @return array Cart fragments including the header cart icon.
+	 */
+	function spacious_cart_icon_fragment( $fragments ) {
+		$selector = 'div.spacious-woocommerce-cart-views';
+
+		if ( 1 !== (int) get_theme_mod( 'spacious_cart_icon', 0 ) || ! isset( WC()->cart ) || isset( $fragments[ $selector ] ) ) {
+			return $fragments;
+		}
+
+		ob_start();
+		spacious_cart_icon_views();
+		$fragments[ $selector ] = ob_get_clean();
+
+		return $fragments;
+	}
+
+endif;
+
+if ( ! function_exists( 'spacious_cart_icon_scripts' ) ) :
+
+	/**
+	 * Load what keeps the header cart icon in sync on the Cart and Checkout pages.
+	 *
+	 * The WooCommerce cart widget, which normally loads cart fragments, hides itself on those pages,
+	 * and the Cart and Checkout blocks change the cart without firing the events cart fragments listen for.
+	 */
+	function spacious_cart_icon_scripts() {
+		if ( 1 !== (int) get_theme_mod( 'spacious_cart_icon', 0 ) || ! class_exists( 'woocommerce' ) ) {
+			return;
+		}
+
+		wp_enqueue_script( 'wc-cart-fragments' );
+
+		// Printed only where the blocks load their cart store.
+		wp_add_inline_script(
+			'wc-blocks-data-store',
+			"( function () {
+				var cart = window.wp && wp.data && wp.data.select( 'wc/store/cart' );
+
+				if ( ! cart ) {
+					return;
+				}
+
+				function key() {
+					var data = cart.getCartData();
+
+					return data.itemsCount + '|' + data.totals.total_items;
+				}
+
+				var last = key();
+
+				wp.data.subscribe( function () {
+					var now = key();
+
+					if ( now !== last && window.jQuery ) {
+						jQuery( document.body ).trigger( 'wc_fragment_refresh' );
+					}
+
+					last = now;
+				} );
+			} )();"
+		);
+	}
+
 endif;
 
 /****************************************************************************************/
diff --git a/languages/spacious.pot b/languages/spacious.pot
index c0b826f1..2b27b92e 100644
--- a/languages/spacious.pot
+++ b/languages/spacious.pot
@@ -4,7 +4,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Spacious 1.9.12\n"
 "Report-Msgid-Bugs-To: themegrill@gmail.com\n"
-"POT-Creation-Date: 2026-09-18 11:47:31+00:00\n"
+"POT-Creation-Date: 2026-09-28 06:56:32+00:00\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -187,7 +187,7 @@ msgstr ""
 
 #: functions.php:324 functions.php:329
 #: inc/customizer/class-spacious-customizer-partials.php:30
-#: inc/functions.php:662 inc/header-functions.php:166
+#: inc/functions.php:662 inc/header-functions.php:259
 #: inc/widgets/class-spacious-featured-single-page-widget.php:104
 #: inc/widgets/class-spacious-service-widget.php:48
 #: inc/widgets/class-spacious-service-widget.php:74
@@ -421,7 +421,7 @@ msgstr ""
 
 #: inc/customizer/class-spacious-customizer-partials.php:49
 #: inc/customizer/class-spacious-customizer-partials.php:56
-#: inc/header-functions.php:314 inc/header-functions.php:320
+#: inc/header-functions.php:407 inc/header-functions.php:413
 msgid "You are here: "
 msgstr ""
 
@@ -1447,59 +1447,59 @@ msgstr ""
 msgid "Comments Off"
 msgstr ""
 
-#: inc/header-functions.php:96
+#: inc/header-functions.php:121
 msgid "Total"
 msgstr ""
 
-#: inc/header-functions.php:244
+#: inc/header-functions.php:337
 msgid "Author: %s"
 msgstr ""
 
-#: inc/header-functions.php:252
+#: inc/header-functions.php:345
 msgid "Day: %s"
 msgstr ""
 
-#: inc/header-functions.php:255
+#: inc/header-functions.php:348
 msgid "Month: %s"
 msgstr ""
 
-#: inc/header-functions.php:258
+#: inc/header-functions.php:351
 msgid "Year: %s"
 msgstr ""
 
-#: inc/header-functions.php:261
+#: inc/header-functions.php:354
 msgid "Asides"
 msgstr ""
 
-#: inc/header-functions.php:264
+#: inc/header-functions.php:357
 msgid "Images"
 msgstr ""
 
-#: inc/header-functions.php:267
+#: inc/header-functions.php:360
 msgid "Videos"
 msgstr ""
 
-#: inc/header-functions.php:270
+#: inc/header-functions.php:363
 msgid "Quotes"
 msgstr ""
 
-#: inc/header-functions.php:273
+#: inc/header-functions.php:366
 msgid "Links"
 msgstr ""
 
-#: inc/header-functions.php:279 sidebar-left.php:29 sidebar.php:32
+#: inc/header-functions.php:372 sidebar-left.php:29 sidebar.php:32
 msgid "Archives"
 msgstr ""
 
-#: inc/header-functions.php:283
+#: inc/header-functions.php:376
 msgid "Page NOT Found"
 msgstr ""
 
-#: inc/header-functions.php:285
+#: inc/header-functions.php:378
 msgid "Search Results"
 msgstr ""
 
-#: inc/header-functions.php:341
+#: inc/header-functions.php:434
 msgid "Menu"
 msgstr ""