.gallery-grid {
  display: grid;
  width: 100%;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  cursor: pointer;
  border-radius: 14px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.fullscreen-slider {
  display: none;
  position: fixed;
  z-index: 9999;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  align-items: center;
  justify-content: center;
}

.fullscreen-slider img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
}

.close-slider {
  position: absolute;
  top: 25px;
  right: 35px;
  color: #fff;
  font-size: 45px;
  cursor: pointer;
  z-index: 10000;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: white;
  font-size: 50px;
  cursor: pointer;
  padding: 20px;
}

.slider-btn.prev {
  left: 20px;
}

.slider-btn.next {
  right: 20px;
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .slider-btn {
    font-size: 36px;
  }
}