.portfolio-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.portfolio-item img {
  cursor: pointer;
  max-width: 100%;
  border-radius: 8px;
  transition: transform 0.3s;
}

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

.lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.85);
  justify-content: center;
  align-items: center;
}

.lightbox img {
  max-width: 90%;
  max-height: 80%;
  border-radius: 12px;
  box-shadow: 0 0 20px #000;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-size: 3rem;
  color: #fff;
  cursor: pointer;
}