body {
  font-family: Arial, sans-serif;
  background: url('IMG_6820.jpeg') no-repeat center center fixed;
  background-size: cover;
  color: #fff;
  margin: 0;
  padding: 0;
  text-align: center;
}

h1 {
  padding: 20px;
  text-shadow: 2px 2px 4px #000;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
  padding: 20px;
}

.gallery-item {
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  transition: transform 0.3s;
}

.gallery-item:hover {
  transform: scale(1.05);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
}

.overlay {
  position: absolute;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  color: #fff;
  width: 100%;
  padding: 10px;
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-item:hover .overlay {
  opacity: 1;
}

.modal {
  display: none;
  position: fixed;
  z-index: 100;
  padding-top: 80px;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.95);
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 80%;
}

#caption {
  margin: 20px;
  font-size: 18px;
}

#close {
  position: absolute;
  top: 20px; right: 40px;
  font-size: 40px;
  cursor: pointer;
}

.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  font-size: 40px;
  padding: 10px;
  color: white;
  user-select: none;
}

.prev { left: 20px; }
.next { right: 20px; }