/* === Lightbox === */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
  padding: var(--space-xl);
}

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

.lightbox__image {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  cursor: default;
}

.lightbox.is-open .lightbox__image {
  transform: scale(1);
}

.lightbox__close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: var(--color-text-primary);
  font-size: var(--text-xl);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Navigation arrows */
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: var(--color-text-primary);
  font-size: var(--text-xl);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox__nav--prev {
  left: var(--space-xl);
}

.lightbox__nav--next {
  right: var(--space-xl);
}

/* Hide nav arrows on mobile (swipe instead) */
@media (max-width: 640px) {
  .lightbox__nav {
    display: none;
  }
}