/* ============================================================
   GALLERY PAGE — Lumè Nail Spa & Beauty Bar
   Masonry grid with filter tabs and lightbox.
   ============================================================ */

/* ── Filter tabs ──────────────────────────────────────────────── */

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.gallery-filter {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.gallery-filter:hover {
  color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.gallery-filter--active {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  border-color: var(--color-primary-dark);
}

/* ── Gallery grid ─────────────────────────────────────────────── */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.gallery-grid__item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
}

.gallery-grid__item.hidden {
  display: none;
}

.gallery-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-grid__item:hover img {
  transform: scale(1.08);
}

.gallery-grid__item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(46, 36, 34, 0);
  transition: background var(--transition-base);
}

.gallery-grid__item:hover::after {
  background: rgba(46, 36, 34, 0.2);
}

/* ── Lightbox ─────────────────────────────────────────────────── */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(46, 36, 34, 0.92);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__image-wrapper {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
}

.lightbox__image-wrapper img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: calc(var(--z-modal) + 1);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox__close svg {
  width: 20px;
  height: 20px;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox__nav--prev {
  left: var(--space-lg);
}

.lightbox__nav--next {
  right: var(--space-lg);
}

.lightbox__nav svg {
  width: 20px;
  height: 20px;
}

.lightbox__counter {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
}