/***************************

masonry collage gallery (project pages)

Scoped to .nk-gallery so the global .mil-image-frame
rules used on index/portfolio/blog stay untouched.

***************************/

.nk-gallery {
  column-count: 3;
  column-gap: 30px;
  /* bottom padding sits on the container, not the items: a multicol
     column break truncates the last item's margin, so relying on
     .nk-gallery-item margin here would collapse against the
     .mil-works-nav border-top below.

     32px matches the gap under the .mil-info rule: Bootstrap's
     .pt-3 (1rem !important) beats .mil-p-120-0 / .mil-p-90-120 on
     both the wrapper and the row, so that gap is 16px + 16px.
     .pt-3 is not breakpoint-scoped, so this holds at every width. */
  padding: 0 90px 32px;
}

/* Reveal is opt-in: items are visible by default and only start hidden
   once JS has added .nk-reveal. If GSAP/ScrollTrigger/JS fails, the
   gallery degrades to plain visible images instead of a blank column.
   The site's shared .mil-up path is deliberately not used here - it has
   a standing "stuck at opacity 0" bug (see the disabled safety net in
   js/main.js) that this layout would trigger, because column heights
   are not known until the images decode. */
.nk-gallery.nk-reveal .nk-gallery-item {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.nk-gallery.nk-reveal .nk-gallery-item.is-in {
  opacity: 1;
  transform: none;
}

.nk-gallery-item {
  display: block;
  position: relative;
  width: 100%;
  margin: 0 0 30px;
  overflow: hidden;
  /* keep an item from being split across two columns */
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  break-inside: avoid;
}

/* the container's padding-bottom supplies the gap above .mil-works-nav;
   without this the single-column layout would stack both */
.nk-gallery-item:last-child {
  margin-bottom: 0;
}

/* natural aspect ratio - no cropping */
.nk-gallery-item > img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 0.6s cubic-bezier(0, 0, 0.3642, 1);
}

.nk-gallery-item:hover > img {
  transform: scale(1.04);
}

/* dim veil on hover so the zoom cue stays readable over light images */
.nk-gallery-item:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.15);
  opacity: 0;
  transition: 0.4s cubic-bezier(0, 0, 0.3642, 1);
  pointer-events: none;
}

.nk-gallery-item:hover:after {
  opacity: 1;
}

/* reuse the existing round zoom button look */
.nk-gallery-item .mil-zoom-btn {
  opacity: 0;
  transform: translateY(15px);
  position: absolute;
  top: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.8);
  transition: 0.4s cubic-bezier(0, 0, 0.3642, 1);
  pointer-events: none;
  z-index: 2;
}

.nk-gallery-item .mil-zoom-btn img {
  height: 17px;
  width: 17px;
}

.nk-gallery-item:hover .mil-zoom-btn {
  opacity: 1;
  transform: translateY(0);
}

/* keyboard users get the same affordance */
.nk-gallery-item:focus-visible {
  outline: 2px solid #000;
  outline-offset: 4px;
}

.nk-gallery-item:focus-visible .mil-zoom-btn {
  opacity: 1;
  transform: translateY(0);
}

/* the 32px bottom stays fixed across breakpoints because the .pt-3 it
   mirrors is not breakpoint-scoped - only the side padding changes */
@media (max-width: 1200px) {
  .nk-gallery {
    padding: 0 60px 32px;
  }
}

@media (max-width: 992px) {
  .nk-gallery {
    column-count: 2;
    padding: 0 30px 32px;
  }
}

@media (max-width: 768px) {
  .nk-gallery {
    column-count: 1;
    column-gap: 0;
    padding: 0 15px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nk-gallery.nk-reveal .nk-gallery-item {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .nk-gallery-item > img,
  .nk-gallery-item:after,
  .nk-gallery-item .mil-zoom-btn {
    transition: none;
  }

  .nk-gallery-item:hover > img {
    transform: none;
  }
}