/* Gallery Styles */
.gallery-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(12, 21, 48, 0.95);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  backdrop-filter: blur(5px);
}

.gallery-overlay.active {
  opacity: 1;
  visibility: visible;
}

.gallery-container {
  width: 90%;
  height: 90%;
  max-width: 1200px;
  background-color: #E8E6ED;
  border-radius: 1rem;
  box-shadow: 0 0 30px rgba(244, 247, 253, 0.9);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transform: scale(0.9);
  opacity: 0;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
}

.gallery-overlay.active .gallery-container {
  transform: scale(1);
  opacity: 1;
}

.gallery-header {
  padding: 1rem 1.5rem;
  background-color: rgba(142, 157, 203, 0.5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 1rem 1rem 0 0;
}

.gallery-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #424242;
  transform: translateY(-20px);
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.5s ease;
}

.gallery-overlay.active .gallery-title {
  transform: translateY(0);
  opacity: 1;
  transition-delay: 0.2s;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 1.5rem;
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.gallery-item {
  border-radius: 0.7rem;
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  background-color: #f9f9f9;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  padding-top: 150%; /* Aspect ratio for portrait mode */
  transform: translateY(30px);
  opacity: 0;
}

.gallery-overlay.active .gallery-item {
  transform: translateY(0);
  opacity: 1;
  transition: transform 0.5s ease, opacity 0.5s ease, box-shadow 0.3s ease;
}

/* Staggered animation for gallery items */
.gallery-overlay.active .gallery-item:nth-child(1) { transition-delay: 0.1s; }
.gallery-overlay.active .gallery-item:nth-child(2) { transition-delay: 0.15s; }
.gallery-overlay.active .gallery-item:nth-child(3) { transition-delay: 0.2s; }
.gallery-overlay.active .gallery-item:nth-child(4) { transition-delay: 0.25s; }
.gallery-overlay.active .gallery-item:nth-child(5) { transition-delay: 0.3s; }
.gallery-overlay.active .gallery-item:nth-child(6) { transition-delay: 0.35s; }

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(142, 157, 203, 0.5);
}

.gallery-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Image Viewer */
.image-viewer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(12, 21, 48, 0.95);
  z-index: 101;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(10px);
}

.image-viewer.active {
  opacity: 1;
  visibility: visible;
}

.viewer-content {
  position: relative;
  width: 90%;
  height: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.viewer-image {
  max-width: 90%;
  max-height: 90%;
  position: absolute;
  top: 50%; 
  left: 50%;
  transform: translate(-50%, -50%);
  transform-origin: center center;
  object-fit: contain;
  cursor: grab;
  transition: opacity 0.5s ease, filter 0.5s ease;
  opacity: 0;
  filter: blur(5px);
}

.image-viewer.active .viewer-image {
  opacity: 1;
  filter: blur(0);
}

.viewer-image:active {
  cursor: grabbing;
}

/* Navigation Arrows */
.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(171, 180, 210, 0.8);
  color: white;
  border: none;
  border-radius: 50%;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.8rem;
  transition: background-color 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
  z-index: 103;
  opacity: 0;
}

.nav-arrow-prev {
  left: 1.5rem;
}

.nav-arrow-next {
  right: 1.5rem;
}

.image-viewer.active .nav-arrow {
  opacity: 0.7;
  transition-delay: 0.3s;
}

.nav-arrow:hover {
  background-color: #8E9DCB;
  transform: translateY(-50%) scale(1.1);
  opacity: 1;
}

/* Buttons */
.btn-close, .btn-reset-zoom {
  background-color: rgba(171, 180, 210, 0.8);
  color: white;
  border: none;
  border-radius: 50%;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.5rem;
  transition: background-color 0.3s ease, transform 0.3s ease;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
  opacity: 0;
}

.gallery-overlay.active .btn-close,
.image-viewer.active .btn-close,
.image-viewer.active .btn-reset-zoom {
  opacity: 1;
  transition: background-color 0.3s ease, transform 0.3s ease, opacity 0.5s ease;
  transition-delay: 0.3s;
}

.btn-close:hover, .btn-reset-zoom:hover {
  background-color: #8E9DCB;
  transform: scale(1.1);
}

.btn-reset-zoom {
  position: absolute;
  bottom: 1.5rem;
  right: 5rem;
  font-size: 1.2rem;
}

.btn-close-viewer {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 102;
}

/* Loading indicator */
.loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  border: 5px solid rgba(142, 157, 203, 0.3);
  border-radius: 50%;
  border-top-color: #8E9DCB;
  animation: spin 1s ease-in-out infinite;
  z-index: 100;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
    gap: 1rem;
    padding: 1rem;
  }
  
  .gallery-title {
    font-size: 1.3rem;
  }
  
  .btn-close, .btn-reset-zoom {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.2rem;
  }
  
  .btn-reset-zoom {
    right: 4rem;
  }
  
  .nav-arrow {
    width: 2.8rem;
    height: 2.8rem;
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
  }
  
  .gallery-container {
    width: 95%;
    height: 95%;
  }
  
  .btn-close, .btn-reset-zoom {
    width: 2.2rem;
    height: 2.2rem;
    font-size: 1rem;
  }
  
  .btn-reset-zoom {
    right: 3.5rem;
  }
  
  .nav-arrow {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.2rem;
  }
  
  .nav-arrow-prev {
    left: 0.8rem;
  }
  
  .nav-arrow-next {
    right: 0.8rem;
  }
}