.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  backdrop-filter: blur(5px);
}
.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}
.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}
.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  border: 2px solid rgba(255,255,255,0.1);
}
.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: rgba(0,0,0,0.3);
  border: none;
  color: white;
  font-size: 32px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.lightbox-close:hover {
  background: #4BD7F6;
  color: #0f172a;
}
body.lightbox-open {
  overflow: hidden;
}
@media (max-width: 768px) {
  .lightbox-close {
    top: -50px;
    right: 10px;
    font-size: 28px;
    width: 36px;
    height: 36px;
  }
}