added video import and playback functionality

app/static/style.css

@@ -114,6 +114,7 @@ body {
 }
 
 .gallery-thumb {
+  position: relative;
   width: 100%;
   height: 100%;
   background-size: cover;
@@ -135,6 +136,18 @@ body {
   color: #d4d4d4;
 }
 
+.play-overlay {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  font-size: 3rem;
+  color: white;
+  text-shadow: 0 0 8px rgba(0, 0, 0, 0.8);
+  opacity: 1;
+  pointer-events: none;
+  z-index: 2;
+}
 
 .pagination-container {
   text-align: center;