.gallery-intro {
    text-align: center;
    padding: 80px 0 40px;
  }
  .gallery-intro h2 {
    font-size: clamp(28px, 3.6vw, 40px);
    color: #0D2B4D;
    margin-bottom: 12px;
  }
  .gallery-intro p { color: var(--muted); font-size: 17px; max-width: 56ch; margin: 0 auto; }

  .filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 24px 0 56px;
    flex-wrap: wrap;
  }
  .filters button {
    background: transparent;
    border: 1.5px solid var(--line);
    color: var(--muted);
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: all var(--t);
  }
  .filters button:hover { border-color: var(--green); color: var(--green); }
  .filters button.active {
    background: var(--green);
    color: var(--white);
    border-color: var(--green);
  }

  .masonry {
    columns: 3;
    column-gap: 16px;
    padding-bottom: 60px;
  }
  @media (max-width: 880px) { .masonry { columns: 2; } }
  @media (max-width: 560px) { .masonry { columns: 1; } }

  .gitem {
    break-inside: avoid;
    margin-bottom: 16px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: transform var(--t), box-shadow var(--t), opacity 0.6s ease;
  }
  .gitem:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
  .gitem img {
    border-radius: 0;
    width: 100%;
    display: block;
  }
  .gitem .overlay {
    position: absolute;
    inset: 0;
    background: rgba(27,58,45,0.0);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--t), background var(--t);
  }
  .gitem:hover .overlay {
    opacity: 1;
    background: rgba(27,58,45,0.55);
  }
  .gitem .overlay .zoom {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--white);
    color: var(--green);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.85);
    transition: transform var(--t);
  }
  .gitem:hover .overlay .zoom { transform: scale(1); }
  .gitem .caption {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    opacity: 0;
    transition: opacity var(--t);
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
  }
  .gitem:hover .caption { opacity: 1; }

  /* Lightbox */
  .lightbox {
    position: fixed;
    inset: 0;
    background: rgba(15, 25, 20, 0.92);
    backdrop-filter: blur(8px);
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
  }
  .lightbox.open { opacity: 1; visibility: visible; pointer-events: auto; }
  .lightbox .lb-content { transform: scale(0.96); transition: transform 0.25s ease; }
  .lightbox.open .lb-content { transform: scale(1); }
  .lb-content {
    position: relative;
    width: min(900px, 90vw);
    max-height: 86vh;
    aspect-ratio: 4/3;
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
  .lb-content img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-lg);
  }
  .lb-caption {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 32px 28px 24px;
    color: var(--white);
    font-size: 16px;
    font-weight: 500;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.7) 100%);
  }
  .lb-close, .lb-prev, .lb-next {
    position: absolute;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
    width: 48px; height: 48px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--t);
  }
  .lb-close:hover, .lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,0.25); }
  .lb-close { top: 24px; right: 24px; }
  .lb-prev { left: 24px; top: 50%; transform: translateY(-50%); }
  .lb-next { right: 24px; top: 50%; transform: translateY(-50%); }
  .lb-counter {
    position: absolute;
    top: 24px; left: 24px;
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    font-weight: 600;
  }