/* =========================================================
   GALLERY
========================================================= */
:root {
  --gallery-columns-desktop: 4;
  --gallery-columns-tablet: 3;
  --gallery-columns-mobile: 2;
  --gallery-lightbox-width: 92vw;
  --gallery-lightbox-height: 90vh;
  --gallery-control-size: 3.5rem;
  --gallery-gap: var(--space-4);
  --gallery-fade-duration: 220ms;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(var(--gallery-columns-desktop), 1fr);
  gap: var(--gallery-gap);
  width: 100%;
  max-width: var(--content-width-wide);
  margin-inline: auto;
  margin-top: var(--space-8);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  margin: 0;
  border-radius: var(--radius-modal);
  background: var(--surface-card);
  box-shadow: var(--elevation-card);
  cursor: pointer;
  isolation: isolate;
}

.gallery-open {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

.gallery-open:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: -3px;
}

.gallery-image {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform var(--duration-base) ease, filter var(--duration-base) ease;
}

.gallery-item:hover .gallery-image {
  transform: scale(1.04);
  filter: brightness(.95);
}

.gallery-more { position: relative; }

.gallery-overlay {
  position: absolute;
  pointer-events: none;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.42);
  backdrop-filter: blur(1px);
  transition: background var(--duration-base), backdrop-filter var(--duration-base);
  z-index: 2;
}

.gallery-more:hover .gallery-overlay {
  background: rgba(0,0,0,.28);
  backdrop-filter: blur(0px);
}

.gallery-count {
  color: var(--color-text-inverse);
  font-size: clamp(1.6rem, 2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: .04em;
  text-shadow: 0 2px 10px rgba(0,0,0,.35);
  user-select: none;
  pointer-events: none;
}

/* =========================================================
   LIGHTBOX
========================================================= */
.lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-overlay);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--gallery-fade-duration) ease;
  z-index: var(--z-modal);
  touch-action: none;
}

.lightbox.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

#lightbox-image {
  max-width: var(--gallery-lightbox-width);
  max-height: var(--gallery-lightbox-height);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: auto;
  border-radius: var(--radius-modal);
  user-select: none;
  position: relative;
  z-index: 1;
  touch-action: pan-y;
}

.lightbox button {
  position: absolute;
  width: var(--gallery-control-size);
  height: var(--gallery-control-size);
  border: none;
  border-radius: var(--radius-circle);
  background: var(--surface-glass);
  color: var(--color-text-inverse);
  font-size: 1.6rem;
  cursor: pointer;
  transition: background var(--duration-base), transform var(--duration-base);
  z-index: 5;
}

.lightbox button:hover {
  background: var(--surface-glass-strong);
  transform: var(--translate-hover-micro);
}

.lightbox-close { top: var(--space-5); right: var(--space-5); }
.lightbox-prev { left: var(--space-5); }
.lightbox-next { right: var(--space-5); }

.lightbox-counter {
  position: absolute;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--surface-glass);
  color: var(--color-text-inverse);
  font-size: var(--font-small);
  backdrop-filter: blur(var(--blur-md));
  z-index: 5;
  pointer-events: none;
}

@media (max-width: 1023px) {
  .gallery-grid {
    grid-template-columns: repeat(var(--gallery-columns-tablet), minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .gallery-grid {
    grid-template-columns: repeat(var(--gallery-columns-mobile), minmax(0, 1fr));
    gap: calc(var(--gallery-gap) * 0.75);
  }

  .gallery-image {
    height: 180px;
  }

  .gallery-count {
    font-size: 1.8rem;
  }

  .lightbox-prev {
    left: var(--space-3);
  }

  .lightbox-next {
    right: var(--space-3);
  }

  .lightbox button {
    width: calc(var(--gallery-control-size) * 0.9);
    height: calc(var(--gallery-control-size) * 0.9);
    font-size: 1.4rem;
  }
}