refactor: transition navigation to a persistent fixed-wrapper layout with improved scroll-based floating state styles

apps/product-site/src/app/[locale]/page.tsx

@@ -61,10 +61,10 @@ export default function Page() {
 
   return (
     <main>
-      {/*  ============ NAV + HERO ============  */}
-      <header className="hero">
+      {/*  ============ FIXED NAV ============  */}
+      <div className={`nav-wrapper ${isScrolled ? 'floating' : ''}`}>
         <div className="container">
-          <nav className={`nav ${isScrolled ? 'nav-floating' : ''}`}>
+          <nav className="nav">
             <div className="brand">
               <a href="#">
                 <div className="brand-mark">
@@ -102,7 +102,11 @@ export default function Page() {
               </div>
             </div>
           </nav>
-          <div className="nav-spacer"></div>
+        </div>
+      </div>
+
+      <header className="hero">
+        <div className="container">
 
           <div className="hero-inner">
             <h1>

apps/product-site/src/app/globals.css

@@ -152,32 +152,7 @@
 
 /* Animations that are hard to replicate purely via utility classes */
 @layer utilities {
-  .nav-floating {
-    position: fixed;
-    top: 16px;
-    left: 50%;
-    transform: translateX(-50%);
-    width: calc(100% - 40px);
-    max-width: 1120px;
-    background: var(--color-brand-1-900);
-    backdrop-filter: blur(14px);
-    -webkit-backdrop-filter: blur(14px);
-    border: 1px solid rgba(255, 255, 255, 0.1);
-    box-shadow: 0 24px 48px -20px rgba(0, 0, 0, 0.55);
-    z-index: 1000;
-    animation: navFloatIn 0.4s cubic-bezier(0.16, 0.8, 0.44, 1);
-  }
 
-  @keyframes navFloatIn {
-    from {
-      opacity: 0;
-      transform: translate(-50%, -16px);
-    }
-    to {
-      opacity: 1;
-      transform: translate(-50%, 0);
-    }
-  }
 
   .drift-a {
     animation: driftA 7s ease-in-out infinite;
@@ -392,59 +367,38 @@
 }
 
 /* ---------- Nav ---------- */
+.nav-wrapper {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  z-index: 1000;
+  pointer-events: none; /* Let clicks pass through empty space */
+}
+
+.nav-wrapper .container {
+  pointer-events: auto; /* Enable clicks on the nav itself */
+}
+
 .nav {
-  position: relative;
-  z-index: 20;
   display: flex;
   align-items: center;
   justify-content: space-between;
   padding: 26px 0;
-  transition:
-    background 0.35s ease,
-    box-shadow 0.35s ease,
-    padding 0.35s ease,
-    border-color 0.35s ease;
+  border-radius: var(--radius-md);
+  margin-top: 0;
+  border: 1px solid transparent;
+  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
 }
 
-.nav.nav-floating {
-  position: fixed;
-  top: 16px;
-  left: 50%;
-  transform: translateX(-50%);
-  width: calc(100% - 40px);
-  max-width: 1120px;
+.nav-wrapper.floating .nav {
+  margin-top: 16px;
   background: var(--color-brand-1-900);
   backdrop-filter: blur(14px);
   -webkit-backdrop-filter: blur(14px);
   border: 1px solid rgba(255, 255, 255, 0.1);
-  border-radius: var(--radius-md);
   padding: 12px 26px;
   box-shadow: 0 24px 48px -20px rgba(0, 0, 0, 0.55);
-  z-index: 1000;
-  animation: navFloatIn 0.4s cubic-bezier(0.16, 0.8, 0.44, 1);
-}
-
-@keyframes navFloatIn {
-  from {
-    opacity: 0;
-    transform: translate(-50%, -16px);
-  }
-
-  to {
-    opacity: 1;
-    transform: translate(-50%, 0);
-  }
-}
-
-.nav-spacer {
-  display: none;
-  height: 0;
-}
-
-.nav-floating ~ .nav-spacer,
-body.nav-is-floating .nav-spacer {
-  display: block;
-  height: 74px;
 }
 
 .brand {
@@ -525,7 +479,7 @@ body.nav-is-floating .nav-spacer {
 .hero-inner {
   position: relative;
   z-index: 2;
-  padding: 8px 0 64px;
+  padding: 94px 0 64px;
 }
 
 .hero h1 {