/**
 * Lightweight Lightbox Styles
 * Modern, responsive, accessible
 */

/* Overlay */
#lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

#lightbox-overlay.lightbox-active {
  opacity: 1;
}

/* Container */
.lightbox-container {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Image */
#lightbox-image {
  max-width: 100%;
  max-height: 75vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
  border-radius: 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* Controls */
.lightbox-btn {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 24px;
  line-height: 1;
  padding: 0;
}

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

.lightbox-btn:active {
  transform: scale(0.95);
}

/* Close button - Upper right corner of overlay */
#lightbox-close {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 10000;
}

/* Navigation buttons */
#lightbox-prev {
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

#lightbox-next {
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

#lightbox-prev:hover,
#lightbox-next:hover {
  transform: translateY(-50%) scale(1.1);
}

#lightbox-prev:active,
#lightbox-next:active {
  transform: translateY(-50%) scale(0.95);
}

/* Caption */
#lightbox-caption {
  color: white;
  text-align: center;
  font-size: 1rem;
  line-height: 1.5;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 0;
  margin: 0.5rem 0 0 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Counter */
#lightbox-counter {
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .lightbox-container {
    max-width: 95vw;
    max-height: 95vh;
  }

  #lightbox-image {
    max-height: 70vh;
  }

  .lightbox-btn {
    width: 44px;
    height: 44px;
    font-size: 20px;
  }

  #lightbox-close {
    top: 1rem;
    right: 1rem;
  }

  #lightbox-prev {
    left: 0.5rem;
  }

  #lightbox-next {
    right: 0.5rem;
  }

  #lightbox-caption {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
  }
}

/* Very small screens */
@media (max-width: 480px) {
  .lightbox-btn {
    width: 40px;
    height: 40px;
    font-size: 18px;
    border-width: 1px;
  }

  #lightbox-image {
    max-height: 65vh;
  }

  #lightbox-caption {
    font-size: 0.8125rem;
  }
}

/* Print - hide lightbox */
@media print {
  #lightbox-overlay {
    display: none !important;
  }
}

/* Loading state */
#lightbox-image:not([src]),
#lightbox-image[src=""] {
  min-width: 200px;
  min-height: 200px;
  background: rgba(255, 255, 255, 0.1);
}

/* Accessibility - focus visible */
.lightbox-btn:focus-visible {
  outline: 2px solid white;
  outline-offset: 2px;
}

/* Smooth image transitions */
#lightbox-image {
  transition: opacity 0.2s ease;
}

/* Icon styles for SVG buttons */
.lightbox-btn svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

@media (max-width: 768px) {
  .lightbox-btn svg {
    width: 20px;
    height: 20px;
  }
}