Hero glass panel at bottom with layered parallax

- Hero text panel moved to bottom with frosted glass effect
  (blur 5px, dark semi-transparent background, hairline top border)
- Scroll arrow centered inside glass panel at the bottom
- Three-layer parallax: image 55%, text 65%, page 100%
- Zeremonie album date fixed (was future-dated, now visible)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

layouts/_default/home.html

@@ -8,13 +8,13 @@
         <div class="hero-content">
           <h1>{{ .Title }}</h1>
           {{ with .Params.tagline }}<p>{{ . }}</p>{{ end }}
-        </div>
-        <div class="hero-scroll" aria-hidden="true">
-          <span class="hero-scroll-icon">
-            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
-              <path d="M6 9l6 6 6-6"/>
-            </svg>
-          </span>
+          <div class="hero-scroll" aria-hidden="true">
+            <span class="hero-scroll-icon">
+              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
+                <path d="M6 9l6 6 6-6"/>
+              </svg>
+            </span>
+          </div>
         </div>
       </div>
     </section>