Add brand film with voiceover to homepage Story section

Embed 42s VAR_Film1 cut (volcanic soil -> cup) as a click-to-play
video with poster in the Story section. Web-optimized 1080p MP4
(faststart) plus poster frame.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

index.html

@@ -769,6 +769,20 @@ footer {
         </div>
       </div>
     </div>
+    <div class="story-film reveal" style="margin-top: 64px; text-align: center;">
+      <span class="eyebrow">The Film</span>
+      <h2 style="margin-bottom: 28px;">From volcanic soil to your cup</h2>
+      <video
+        class="story-film-video"
+        controls
+        preload="metadata"
+        playsinline
+        poster="assets/film/var-film1-poster.jpg"
+        style="width: 100%; max-width: 960px; border-radius: 8px; border: 1px solid rgba(200,169,106,0.35); box-shadow: 0 20px 60px rgba(0,0,0,0.45); background: #000;">
+        <source src="assets/film/var-film1.mp4" type="video/mp4">
+        Your browser does not support the video tag.
+      </video>
+    </div>
   </div>
 </section>