diff --git a/src/AKSRT/Frontend/InlineStyleBuilder.php b/src/AKSRT/Frontend/InlineStyleBuilder.php
index cb29d2ae..dd812f0d 100644
--- a/src/AKSRT/Frontend/InlineStyleBuilder.php
+++ b/src/AKSRT/Frontend/InlineStyleBuilder.php
@@ -105,8 +105,28 @@ class InlineStyleBuilder {
             echo '--focus-color:' . esc_attr($dark_primary) . ';';
         }
         echo '}</style>' . "\n";
+
+        // Zibll header_theme_custom → --header-bg / --header-color on .header.
+        if (class_exists('\AKSRT\Settings\Settings')) {
+            $ht = \AKSRT\Settings\Settings::get_header_theme_config();
+            if (!empty($ht['custom'])) {
+                $h_bg = $ht['bg_custom'] !== '' ? $ht['bg_custom'] : ($ht['bg'] ?? '');
+                $h_fg = $ht['color_custom'] ?? '';
+                if ($h_bg !== '' || $h_fg !== '') {
+                    echo '<style id="aksrt-header-theme">.header{';
+                    if ($h_bg !== '') {
+                        echo '--header-bg:' . esc_attr($h_bg) . ';background:' . esc_attr($h_bg) . ';';
+                    }
+                    if ($h_fg !== '') {
+                        echo '--header-color:' . esc_attr($h_fg) . ';color:' . esc_attr($h_fg) . ';';
+                    }
+                    echo '}</style>' . "\n";
+                }
+            }
+        }
+
         if (class_exists('\AKSRT\Settings\Settings') && !empty(\AKSRT\Settings\Settings::get_value('close_backdrop', false))) {
-            echo '<style id="aksrt-no-backdrop">.aksrt-header,.header-inner,.site-header,.mobile-nav-overlay,.modal-backdrop,.aksrt-drawer-overlay,.aksrt-float-btn,.sidebar-inner{backdrop-filter:none!important;-webkit-backdrop-filter:none!important;background-color:var(--bg-card,#fff)!important}</style>' . "\n";
+            echo '<style id="aksrt-no-backdrop">.aksrt-header,.header-inner,.site-header,.header,.mobile-nav-overlay,.modal-backdrop,.aksrt-drawer-overlay,.aksrt-float-btn,.sidebar-inner{backdrop-filter:none!important;-webkit-backdrop-filter:none!important;background-color:var(--bg-card,#fff)!important}</style>' . "\n";
         }
         echo '<style id="aksrt-runtime-components">'
             . '.aksrt-search-hot-keywords{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:12px;font-family:var(--font-ui);}'