feat: Apple-grade pass — scale, type, photographic hero, de-noise, single-signal chrome, lighter header

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012jWfn3RwPfFGTtBddm36Uy

src/pages/dashboard.astro

@@ -19,16 +19,11 @@ const tickets = [
 ];
 ---
 <Base title="CTAO Science Portal — Dashboard" description="User dashboard (mock)">
-  <section class="hero-band">
-    <div class="band-bg" aria-hidden="true"></div>
-    <div class="container hero">
-      <div class="eyebrow">User area</div>
-      <h1>Dashboard</h1>
-      <p>Your proposals, data products and support tickets in one place</p>
-    </div>
-  </section>
-
   <section class="band--moon">
+    <header class="container page-head">
+      <h1>Dashboard</h1>
+      <p class="standfirst">Your proposals, data products and support tickets in one place.</p>
+    </header>
     <div class="container page">
     <span class="badge-mock">Mock — sample data, no live services connected</span>
     <div class="dash-grid">