body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  text-align: center;
}
h1 {
  margin-top: 20px;
}
#gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  padding: 20px;
}
#gallery img {
  width: 200px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.2s;
}
#gallery img:hover {
  transform: scale(1.05);
}
.lightbox {
  display: none;
  position: fixed;
  z-index: 999;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  justify-content: center;
  align-items: center;
}
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 10px;
}