/* =========================
   gallery.css
   ========================= */
   .gallery-main {
    padding: 2rem;
    background-color: #000000;
    min-height: calc(100vh - 48px);
    margin-top: 48px;
  }
  
  /* Category Navigation */
  .category-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    padding: 1rem;
  }
  
  .category-btn {
    background: transparent;
    border: 2px solid #ffffff;
    color: #ffffff;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: transform 0.25s ease, background 0.3s ease, color 0.3s ease;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  .category-btn:hover,
  .category-btn.active {
    background: #ffffff;
    color: #000000;
    transform: translateY(-2px);
  }
  
  /* Gallery Grid */
  .gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
  }
  
  /* Gallery Item */
  .gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
  
    opacity: 0;
    transform: translateY(18px) scale(0.98);
    will-change: transform, opacity, filter;
  }
  
  /* When visible */
  .gallery-item.show {
    animation: slideUp 0.6s ease forwards;
  }
  
  /* When filtering out */
  .gallery-item.hide {
    animation: fadeOut 0.25s ease forwards;
    pointer-events: none;
  }
  
  .gallery-item.hidden {
    display: none;
  }
  
  .gallery-item:hover {
    transform: translateY(-6px) scale(1.01);
  }
  
  /* Image */
  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.02);
    transition: transform 0.65s ease, filter 0.65s ease;
    filter: saturate(1.05) contrast(1.02);
  }
  
  .gallery-item:hover img {
    transform: scale(1.10);
    filter: saturate(1.15) contrast(1.05);
  }
  
  /* Shine layer */
  .shine {
    position: absolute;
    inset: -40%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.18), transparent 55%);
    opacity: 0;
    transform: translate3d(-8%, -8%, 0);
    transition: opacity 0.55s ease, transform 0.55s ease;
    pointer-events: none;
  }
  
  .gallery-item:hover .shine {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
  
  /* Overlay */
  .item-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 1.5rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
    color: #ffffff;
    transition: bottom 0.35s ease, opacity 0.35s ease;
    opacity: 0;
  }
  
  .gallery-item:hover .item-overlay {
    bottom: 0;
    opacity: 1;
  }
  
  .item-overlay h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
  }
  
  .item-overlay p {
    font-size: 0.9rem;
    opacity: 0.8;
  }
  
  /* Lightbox */
  .lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
  }
  
  .lightbox.active {
    display: flex;
  }
  
  .lightbox-image {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    transform: translateY(10px) scale(0.98);
    opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }
  
  .lightbox.active .lightbox-image {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  
  .close-lightbox {
    position: absolute;
    top: 20px;
    right: 20px;
    color: #ffffff;
    font-size: 2rem;
    cursor: pointer;
    z-index: 1001;
  }
  
  .lightbox-caption {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 100%;
    text-align: center;
    color: #ffffff;
    padding: 1rem;
  }
  
  /* Animations */
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  
  @keyframes slideUp {
    to {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
  }
  
  @keyframes fadeOut {
    to {
      opacity: 0;
      transform: translateY(6px) scale(0.98);
      filter: blur(2px);
    }
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .category-nav { gap: 0.5rem; }
  
    .category-btn {
      padding: 0.4rem 1rem;
      font-size: 0.9rem;
    }
  
    .gallery-grid {
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
      gap: 1rem;
    }
  }