diff --git a/site/admin.html b/site/admin.html
index bdfcf2c..8d7e9e9 100644
--- a/site/admin.html
+++ b/site/admin.html
@@ -4,6 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>RecordGod — admin</title>
+<script defer src="/nav.js"></script>
 <style>
   :root{--pink:#ff5db1;--ink:#0b0b0d;--panel:#141418;--line:#26262c;--mut:#9a9aa6;--ok:#46d18a;--warn:#e6a046}
   *{box-sizing:border-box}
@@ -17,7 +18,7 @@
   button{padding:9px 13px;border:0;border-radius:8px;background:var(--pink);color:#1a0a14;font:500 14px system-ui;cursor:pointer}
   button.ghost{background:#1d1d22;color:#ccc;border:1px solid var(--line)}
   /* layout */
-  #app{display:none;grid-template-columns:212px 1fr;height:100vh}
+  #app{display:none;grid-template-columns:212px 1fr;height:calc(100vh - 44px)}
   nav{background:#0e0e11;border-right:1px solid var(--line);padding:14px 10px;overflow:auto}
   nav .brand{font-weight:600;font-size:18px;padding:6px 10px 14px}
   nav .brand b{color:var(--pink)}
diff --git a/site/builder.html b/site/builder.html
index 8973bad..fc3e6e3 100644
--- a/site/builder.html
+++ b/site/builder.html
@@ -4,6 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>RecordGod — storefront builder</title>
+<script defer src="/nav.js"></script>
 <style>
   :root{--pink:#ff5db1;--ink:#0b0b0d;--panel:#141418;--line:#26262c;--mut:#9a9aa6;--ok:#46d18a}
   *{box-sizing:border-box}
@@ -14,7 +15,7 @@
   input,select{padding:8px 9px;border:1px solid var(--line);border-radius:7px;background:#0e0e11;color:#eee;font:13px system-ui;width:100%}
   #gate{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--ink);z-index:20}
   #gate .b{width:320px;text-align:center}#gate h1{color:var(--pink)}
-  #app{display:none;grid-template-rows:auto 1fr;height:100vh}
+  #app{display:none;grid-template-rows:auto 1fr;height:calc(100vh - 44px)}
   header{display:flex;align-items:center;gap:14px;padding:11px 18px;border-bottom:1px solid var(--line);background:#0e0e11}
   header .t{font-weight:600}header .t b{color:var(--pink)}
   header .sp{flex:1}#status{color:var(--mut);font-size:12px}
diff --git a/site/dash.html b/site/dash.html
index 39ca17b..459abc2 100644
--- a/site/dash.html
+++ b/site/dash.html
@@ -4,6 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>RecordGod — control room</title>
+<script defer src="/nav.js"></script>
 <style>
   :root{--pink:#ff5db1;--ink:#0c0c0e;--mut:#9a9aa6;--card:#141418;--line:#26262c}
   *{box-sizing:border-box}
diff --git a/site/nav.js b/site/nav.js
new file mode 100644
index 0000000..7d7ad24
--- /dev/null
+++ b/site/nav.js
@@ -0,0 +1,32 @@
+// Unified RecordGod owner nav — included on the back-office pages (admin / builder / dash).
+// One source of truth: edit the links here, every page updates. Kept OFF the customer shop/store.
+(function () {
+  const LINKS = [
+    { href: '/admin', label: 'Admin' },
+    { href: '/builder', label: 'Builder' },
+    { href: '/shop', label: 'Shop' },
+    { href: '/store/', label: '3D store' },
+  ];
+  const here = (location.pathname.replace(/\/+$/, '') || '/');
+  const css = document.createElement('style');
+  css.textContent =
+    '#rg-nav{position:fixed;top:0;left:0;right:0;height:44px;display:flex;align-items:center;gap:4px;' +
+    'padding:0 16px;background:#0a0a0c;border-bottom:1px solid #26262c;z-index:99999;font:14px system-ui}' +
+    '#rg-nav .b{font-weight:700;color:#eee;text-decoration:none;margin-right:14px}' +
+    '#rg-nav .b i{color:#ff5db1;font-style:normal}' +
+    '#rg-nav a.l{color:#cfcfd6;text-decoration:none;padding:6px 11px;border-radius:7px}' +
+    '#rg-nav a.l:hover{background:#17171c}' +
+    '#rg-nav a.l.on{background:#221a20;color:#ff5db1}' +
+    '#rg-nav .sp{flex:1}' +
+    'body{padding-top:44px}';
+  document.head.appendChild(css);
+  const bar = document.createElement('nav');
+  bar.id = 'rg-nav';
+  bar.innerHTML = '<a class="b" href="/">Record<i>God</i></a>' +
+    LINKS.map(p => {
+      const on = here === p.href.replace(/\/+$/, '');
+      return `<a class="l${on ? ' on' : ''}" href="${p.href}">${p.label}</a>`;
+    }).join('') +
+    '<span class="sp"></span>';
+  document.body.insertBefore(bar, document.body.firstChild);
+})();