diff --git a/shared/static/scripts/sx-browser.js b/shared/static/scripts/sx-browser.js
index b9012d9..84a0355 100644
--- a/shared/static/scripts/sx-browser.js
+++ b/shared/static/scripts/sx-browser.js
@@ -14,7 +14,7 @@
   // =========================================================================
 
   var NIL = Object.freeze({ _nil: true, toString: function() { return "nil"; } });
-  var SX_VERSION = "2026-03-14T22:48:39Z";
+  var SX_VERSION = "2026-03-14T23:27:46Z";
 
   function isNil(x) { return x === NIL || x === null || x === undefined; }
   function isSxTruthy(x) { return x !== false && !isNil(x); }
@@ -7019,6 +7019,9 @@ PRIMITIVES["resource"] = resource;
   function localStorageRemove(key) {
     try { localStorage.removeItem(key); } catch (e) {}
   }
+  PRIMITIVES["local-storage-get"] = localStorageGet;
+  PRIMITIVES["local-storage-set"] = localStorageSet;
+  PRIMITIVES["local-storage-remove"] = localStorageRemove;
 
   // --- Cookies ---
 
diff --git a/shared/sx/ref/platform_js.py b/shared/sx/ref/platform_js.py
index 1a1c032..5f1ffff 100644
--- a/shared/sx/ref/platform_js.py
+++ b/shared/sx/ref/platform_js.py
@@ -2912,6 +2912,9 @@ PLATFORM_BOOT_JS = """
   function localStorageRemove(key) {
     try { localStorage.removeItem(key); } catch (e) {}
   }
+  PRIMITIVES["local-storage-get"] = localStorageGet;
+  PRIMITIVES["local-storage-set"] = localStorageSet;
+  PRIMITIVES["local-storage-remove"] = localStorageRemove;
 
   // --- Cookies ---
 
diff --git a/sx/sx/home-stepper.sx b/sx/sx/home-stepper.sx
index a7a6ff2..6fe77b7 100644
--- a/sx/sx/home-stepper.sx
+++ b/sx/sx/home-stepper.sx
@@ -174,7 +174,8 @@
                    (when (and parent rendered)
                      (dom-append parent rendered)))))
            (swap! step-idx inc)
-           (update-code-highlight))))
+           (update-code-highlight)
+           (local-storage-set "sx-home-stepper" (freeze-to-sx "home-stepper")))))
        (do-back (fn ()
          (when (> (deref step-idx) 0)
            (let ((target (- (deref step-idx) 1))
@@ -182,7 +183,18 @@
              (when container (dom-set-prop container "innerHTML" ""))
              (set-stack (list (get-preview)))
              (reset! step-idx 0)
-             (for-each (fn (_) (do-step)) (slice (deref steps) 0 target)))))))
+             (for-each (fn (_) (do-step)) (slice (deref steps) 0 target))
+             (local-storage-set "sx-home-stepper" (freeze-to-sx "home-stepper")))))))
+      ;; Freeze scope for persistence
+      (freeze-scope "home-stepper" (fn ()
+        (freeze-signal "step" step-idx)))
+      ;; Restore from localStorage on mount
+      (let ((saved (local-storage-get "sx-home-stepper")))
+        (when saved
+          (thaw-from-sx saved)
+          ;; Validate — reset to default if out of range
+          (when (or (< (deref step-idx) 0) (> (deref step-idx) 16))
+            (reset! step-idx 9))))
       ;; Auto-parse via effect
       (effect (fn ()
         (let ((parsed (sx-parse source)))
@@ -198,7 +210,9 @@
               ;; Defer code DOM build until lake exists
               (schedule-idle (fn ()
                 (build-code-dom)
-                ;; Replay to initial step-idx
+                ;; Clear preview and replay to initial step-idx
+                (let ((preview (get-preview)))
+                  (when preview (dom-set-prop preview "innerHTML" "")))
                 (let ((target (deref step-idx)))
                   (reset! step-idx 0)
                   (set-stack (list (get-preview)))
@@ -213,7 +227,7 @@
         ;; Controls
         (div :class "flex items-center justify-center gap-2 md:gap-3"
           (button :on-click (fn (e) (do-back))
-            :class (str "px-2 py-1 rounded text-lg "
+            :class (str "px-2 py-1 rounded text-3xl "
                      (if (> (deref step-idx) 0)
                        "text-stone-600 hover:text-stone-800 hover:bg-stone-100"
                        "text-stone-300 cursor-not-allowed"))
@@ -221,7 +235,7 @@
           (span :class "text-sm text-stone-500 font-mono tabular-nums"
             (deref step-idx) " / " (len (deref steps)))
           (button :on-click (fn (e) (do-step))
-            :class (str "px-2 py-1 rounded text-lg "
+            :class (str "px-2 py-1 rounded text-3xl "
                      (if (< (deref step-idx) (len (deref steps)))
                        "text-violet-600 hover:text-violet-800 hover:bg-violet-50"
                        "text-violet-300 cursor-not-allowed"))