body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f9f9f9;
  color: #333;
}

.title {
  text-align: center;
  padding: 1rem;
  font-size: 1.8rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
  padding: 1rem;
}

.item {
  position: relative;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  cursor: pointer;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.item:hover {
  transform: scale(1.03);
}

.item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.play-icon {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.6);
  color: white;
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 1rem;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 999;
  animation: fadeIn 0.3s ease;
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  border-radius: 8px;
  overflow: hidden;
  animation: zoomIn 0.3s ease;
}

.modal video,
.modal img {
  width: 100%;
  height: auto;
  display: block;
}

.close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  z-index: 1000;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes zoomIn {
  from { transform: scale(0.8); }
  to { transform: scale(1); }
}