.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.gallery-item {
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
  font: inherit;
  cursor: pointer;
  background-color: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  aspect-ratio: 4 / 3;
}

.gallery-item:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-empty {
  text-align: center;
  color: var(--secondary-color);
  font-size: 1.1rem;
  padding: 3rem 1rem;
}

/* Lightbox */
body.lightbox-open {
  overflow: hidden;
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.gallery-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
}

.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: min(92vw, 1100px);
  max-height: 90vh;
  padding: 0 3rem;
}

.lightbox-image {
  display: block;
  max-width: 100%;
  max-height: 82vh;
  margin: 0 auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  text-align: center;
  color: #fff;
  margin-top: 1rem;
  font-size: 0.95rem;
  opacity: 0.85;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.75rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox-close {
  top: -3rem;
  right: 0;
  font-size: 2rem;
}

.lightbox-prev {
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

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

  .lightbox-content {
    padding: 0 2.5rem;
  }

  .lightbox-close {
    top: -2.5rem;
    right: 0.5rem;
  }
}