diff --git a/assets/css/wc-bootstrap.css b/assets/css/wc-bootstrap.css
index 67de347..ef8308d 100644
--- a/assets/css/wc-bootstrap.css
+++ b/assets/css/wc-bootstrap.css
@@ -209,10 +209,13 @@
 
 /* ==========================================================================
    Sale Badge
-   Positioning for the sale overlay badge on product cards.
+   Position inside gallery area, not overlapping breadcrumb.
+   WooCommerce sets top: -.5em which bleeds above the containing block.
    ========================================================================== */
 
-.onsale {
+.woocommerce span.onsale {
+    top: 0.5em;
+    left: 0.5em;
     z-index: 1;
 }
 
@@ -263,6 +266,18 @@
     border-radius: var(--bs-border-radius);
 }
 
+/* ==========================================================================
+   Single Product Layout
+   Reset WooCommerce's float-based two-column layout for single product pages.
+   Bootstrap's row/col-lg-6 grid handles the layout instead.
+   ========================================================================== */
+
+.woocommerce div.product div.images,
+.woocommerce div.product div.summary {
+    float: none;
+    width: 100%;
+}
+
 /* ==========================================================================
    Variation Selectors
    Spacing for variable product attribute dropdowns.
diff --git a/functions.php b/functions.php
index 5ca8825..20b4334 100644
--- a/functions.php
+++ b/functions.php
@@ -271,6 +271,22 @@ function wc_bootstrap_remove_default_sidebar(): void {
 }
 add_action( 'init', 'wc_bootstrap_remove_default_sidebar' );
 
+/**
+ * Replace WooCommerce's content wrapper with a no-op.
+ *
+ * The parent theme's page shell already wraps content in a .container,
+ * so WooCommerce's default wrapper (another .container + #primary + <main>)
+ * creates a double-nested container that constrains width. Remove it and
+ * let the parent theme handle the outer layout.
+ *
+ * @since 0.1.0
+ */
+function wc_bootstrap_remove_content_wrappers(): void {
+    remove_action( 'woocommerce_before_main_content', 'woocommerce_output_content_wrapper', 10 );
+    remove_action( 'woocommerce_after_main_content', 'woocommerce_output_content_wrapper_end', 10 );
+}
+add_action( 'init', 'wc_bootstrap_remove_content_wrappers' );
+
 /**
  * Prevent the parent theme from rendering WooCommerce pages.
  *
diff --git a/templates/content-single-product.html.twig b/templates/content-single-product.html.twig
index 6df42ae..e36054e 100644
--- a/templates/content-single-product.html.twig
+++ b/templates/content-single-product.html.twig
@@ -34,9 +34,9 @@
 <div id="product-{{ product_id }}" class="{{ product_class }}">
 
     {# Two-column layout: images left, summary right #}
-    <div class="row g-4 g-lg-5 mb-5">
+    <div class="row gx-4 gx-lg-5 mb-5">
         {# Left column: Sale flash + Product images #}
-        <div class="col-lg-6">
+        <div class="col-lg-6 position-relative">
             {{ do_action('woocommerce_before_single_product_summary') }}
         </div>