.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  max-width: 1000px;
  margin: auto;
}
.gallery img {
  width: 100%;
  height: auto;
  cursor: pointer;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}
.gallery img:hover {
  transform: scale(1.05);
}

/* Lightbox */
.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: 90%;
  max-height: 80%;
  border-radius: 10px;
}
#closeBtn {
  position: absolute;
  top: 20px;
  right: 40px;
  font-size: 2rem;
  color: white;
  cursor: pointer;
}