/* ============================================================
   gallery-public.css — Public Gallery page (gallery.html)
   Uses design tokens only. No hardcoded colors.
   ============================================================ */

/* ---------- Page hero ---------- */
.gallery-hero {
  text-align: center;
  padding: calc(80px + var(--space-16)) var(--space-5) var(--space-10);
  background: var(--color-bg);
}
.gallery-hero h1 {
  font-family: var(--font-heading);
  font-size: var(--fs-h1);
  font-weight: var(--fw-bold);
  margin: var(--space-3) 0 var(--space-4);
  color: var(--color-text);
}
.gallery-hero p { color: var(--color-text-muted); font-size: var(--fs-lead); max-width: 520px; margin: 0 auto; }

/* ---------- Filter chips ---------- */
.gallery-filters {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 var(--space-5) var(--space-6);
  background: var(--color-bg);
}
.gf-chip {
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: var(--transition-smooth);
}
.gf-chip:hover { border-color: var(--color-forest); color: var(--color-forest); }
.gf-chip.active {
  background: var(--color-forest);
  border-color: var(--color-forest);
  color: var(--color-white);
}

/* ---------- Gallery section ---------- */
.gallery-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-5) var(--space-16);
}

/* ---------- Gallery grid ---------- */
.pub-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

/* ---------- Gallery card ---------- */
.pub-gallery-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  cursor: pointer;
  transition: box-shadow 0.25s, transform 0.25s;
  outline: none;
}
.pub-gallery-card:hover,
.pub-gallery-card:focus-visible {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.pub-thumb-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.pub-thumb {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.pub-gallery-card:hover .pub-thumb { transform: scale(1.06); }

.pub-thumb-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-scrim-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--color-white);
  opacity: 0;
  transition: opacity 0.2s;
}
.pub-gallery-card:hover .pub-thumb-overlay,
.pub-gallery-card:focus-visible .pub-thumb-overlay { opacity: 1; }

.pub-card-info {
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.pub-card-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.pub-cat-badge {
  font-size: var(--fs-2xs);
  font-weight: var(--fw-semibold);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  text-transform: capitalize;
}
.pub-cat-tree    { background: var(--color-forest-tint);  color: var(--color-forest); }
.pub-cat-welding { background: var(--color-welding-tint); color: var(--color-welding); }
.pub-cat-other   { background: var(--color-bg-alt); color: var(--color-text-muted); }

/* ---------- Skeleton ---------- */
.pub-skel {
  aspect-ratio: 4/3;
  background: linear-gradient(90deg, var(--color-bg-alt) 25%, var(--color-border-faint) 50%, var(--color-bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- Empty state ---------- */
.gallery-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-16) 0;
  font-size: var(--fs-lead);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
}
.lightbox.open { opacity: 1; pointer-events: all; }

.lb-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-scrim);
  z-index: 1990;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}
.lb-backdrop.open { opacity: 1; pointer-events: all; }

.lb-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.lb-img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  display: block;
}
.lb-caption {
  color: var(--color-white);
  font-size: var(--fs-sm);
  text-align: center;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

.lb-close {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 2100;
  width: 44px; height: 44px;
  border-radius: var(--radius-round);
  background: var(--color-surface);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}
.lb-close:hover { background: var(--color-danger); color: var(--color-white); }

.lb-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2100;
  width: 48px; height: 48px;
  border-radius: var(--radius-round);
  background: var(--color-surface);
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}
.lb-nav:hover:not(:disabled) { background: var(--color-forest); color: var(--color-white); }
.lb-nav:disabled { opacity: 0.3; cursor: default; }
.lb-prev { left: var(--space-4); }
.lb-next { right: var(--space-4); }

/* ---------- Gallery CTA ---------- */
.gallery-cta {
  background: var(--color-ink);
  text-align: center;
  padding: var(--space-16) var(--space-5);
}
.gallery-cta-inner { max-width: 600px; margin: 0 auto; }
.gallery-cta h2 {
  font-family: var(--font-heading);
  font-size: var(--fs-h2);
  color: var(--color-white);
  margin: 0 0 var(--space-4);
}
.gallery-cta p { color: var(--color-text-on-dark-muted); margin: 0 0 var(--space-8); font-size: var(--fs-lead); }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .pub-gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .pub-gallery-grid { grid-template-columns: 1fr; }
  .gallery-hero { padding-top: calc(70px + var(--space-10)); }
  .lb-nav { display: none; }
}