/* ============================================================
   GALLERY PAGE — Styles
   ============================================================ */

/* --- Gallery Hero --- */
.gallery-hero {
  padding: clamp(8rem, 12vw, 14rem) var(--space-6) clamp(var(--space-12), 6vw, var(--space-20));
}

.gallery-hero-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  text-align: center;
}

.gallery-page-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1;
}

/* --- Filters --- */
.gallery-filters {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: var(--space-4) var(--space-6);
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.filters-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.filters-inner::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition-interactive);
  white-space: nowrap;
}

.filter-btn:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.filter-btn.is-active {
  color: #fff;
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* --- Gallery Grid --- */
.gallery-page-section {
  padding: var(--space-8) var(--space-6) var(--space-16);
}

.gallery-page-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.gallery-page-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.gp-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: zoom-in;
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.gp-item.is-hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  visibility: hidden;
}

.gp-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.gp-item--wide img {
  aspect-ratio: 16 / 9;
}

.gp-item:hover img {
  transform: scale(1.04);
}

.gp-item figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-8) var(--space-4) var(--space-3);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.55));
  color: #fff;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.gp-item:hover figcaption {
  opacity: 1;
  transform: translateY(0);
}

.gp-item--wide {
  grid-column: span 2;
}

/* Show captions always on touch devices */
@media (hover: none) {
  .gp-item figcaption {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 640px) {
  .gallery-page-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
  .gp-item--wide {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .gallery-page-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .gp-item--wide {
    grid-column: span 2;
  }
}

/* --- Back Nav --- */
.gallery-back {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  padding: 0 var(--space-6) var(--space-16);
  flex-wrap: wrap;
}

.btn-gallery--accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.btn-gallery--accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
}

/* --- Active nav link --- */
.nav-links a.is-active {
  color: var(--color-text);
}

.nav-links a.is-active::after {
  width: 100%;
}