diff --git a/index.html b/index.html
index 50cebd3..ce4466f 100644
--- a/index.html
+++ b/index.html
@@ -129,10 +129,11 @@
   .foot .sp{margin-left:auto}
 
   /* ── reveal ── */
-  .rev{opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease}
-  .rev.in{opacity:1; transform:none}
+  .rev{opacity:1}
+  html.js .rev{opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease}
+  html.js .rev.in{opacity:1; transform:none}
   @media (prefers-reduced-motion:reduce){
-    .rev{opacity:1; transform:none; transition:none}
+    html.js .rev{opacity:1; transform:none; transition:none}
     html{scroll-behavior:auto}
   }
   @media (max-width:720px){
@@ -321,6 +322,9 @@
 (function(){
   "use strict";
   var reduce = matchMedia("(prefers-reduced-motion: reduce)").matches;
+  // Arm the reveal animation only now that JS is definitely running — without
+  // this, a script failure would leave the page's content invisible.
+  if (!reduce) document.documentElement.classList.add("js");
 
   /* ── scroll reveal ─────────────────────────────────────────────── */
   var revs = document.querySelectorAll(".rev");
@@ -331,6 +335,10 @@
       });
     },{threshold:.14, rootMargin:"0px 0px -40px 0px"});
     revs.forEach(function(el){ io.observe(el); });
+    // Safety net: anything the observer somehow misses still becomes visible.
+    setTimeout(function(){ revs.forEach(function(el){
+      if (el.getBoundingClientRect().top < innerHeight*2) el.classList.add("in");
+    }); }, 2500);
   } else { revs.forEach(function(el){ el.classList.add("in"); }); }
 
   /* ── LED world map ─────────────────────────────────────────────────