diff --git a/public/img/hero-video.mp4 b/public/img/hero-video.mp4
index e53a3f4..6080953 100644
Binary files a/public/img/hero-video.mp4 and b/public/img/hero-video.mp4 differ
diff --git a/public/img/prism-still.jpg b/public/img/prism-still.jpg
new file mode 100644
index 0000000..ec88452
Binary files /dev/null and b/public/img/prism-still.jpg differ
diff --git a/public/index.html b/public/index.html
index ef37f9b..a04201f 100644
--- a/public/index.html
+++ b/public/index.html
@@ -115,6 +115,7 @@
             min-height: 100%;
             transform: translate(-50%, -50%);
             object-fit: cover;
+            object-position: center center;
             z-index: 0;
         }
 
@@ -301,7 +302,7 @@
 
         .installations-grid {
             display: grid;
-            grid-template-columns: 1fr 1fr;
+            grid-template-columns: repeat(3, 1fr);
             gap: 1.5rem;
         }
 
@@ -310,14 +311,16 @@
             overflow: hidden;
         }
 
-        .installation-item img {
+        .installation-item img,
+        .installation-item video {
             width: 100%;
             height: 350px;
             object-fit: cover;
             transition: transform 0.5s ease;
         }
 
-        .installation-item:hover img {
+        .installation-item:hover img,
+        .installation-item:hover video {
             transform: scale(1.03);
         }
 
@@ -677,7 +680,8 @@
                 grid-template-columns: 1fr;
             }
 
-            .installation-item img {
+            .installation-item img,
+            .installation-item video {
                 height: 280px;
             }
 
@@ -815,6 +819,13 @@
                     <p>Accra &middot; UV-Reactive Environment</p>
                 </div>
             </div>
+            <div class="installation-item">
+                <img src="img/prism-still.jpg" alt="Prism — light sculpture installation" loading="lazy">
+                <div class="installation-caption">
+                    <h4>Prism</h4>
+                    <p>Light Sculpture &middot; Kinetic</p>
+                </div>
+            </div>
         </div>
     </div>
 </section>