/* Lightbox Modal for Image Viewing */

.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-overlay);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.lightbox__image {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-small);
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.lightbox.active .lightbox__image {
  transform: scale(1);
}

/* Close Button */
.lightbox__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 48px;
  height: 48px;
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox__close:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.1);
}

.lightbox__close::before,
.lightbox__close::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2px;
  background-color: var(--color-white);
}

.lightbox__close::before {
  transform: rotate(45deg);
}

.lightbox__close::after {
  transform: rotate(-45deg);
}

/* Navigation Arrows */
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox__nav:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

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

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

.lightbox__nav::before {
  content: '';
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--color-white);
  border-right: 2px solid var(--color-white);
}

.lightbox__nav--prev::before {
  transform: rotate(-135deg);
  margin-left: 4px;
}

.lightbox__nav--next::before {
  transform: rotate(45deg);
  margin-right: 4px;
}

/* Image Counter */
.lightbox__counter {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.6);
  color: var(--color-white);
  padding: var(--space-xs) var(--space-md);
  border-radius: 20px;
  font-family: var(--font-ui);
  font-size: var(--font-size-small);
  z-index: 10;
}

/* Loading Spinner */
.lightbox__spinner {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: lightbox-spin 0.8s linear infinite;
}

@keyframes lightbox-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  .lightbox__close,
  .lightbox__nav {
    width: 40px;
    height: 40px;
  }

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

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

  .lightbox__counter {
    bottom: var(--space-sm);
  }
}

/* Prevent body scroll when lightbox is open */
body.lightbox-open {
  overflow: hidden;
}