/**
 * JP Consortium — Gallery Page CSS
 * Architectural grid, category filters, and accessible lightbox modal.
 */

/* ── Filter Controls ─────────────────────────────────────────────────────── */
.gallery-controls {
  background: var(--color-offwhite);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-5);
  position: sticky;
  top: var(--nav-height);
  z-index: 20;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.gallery-controls__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.gal-filter-btn {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  font-family: inherit;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-graphite);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.gal-filter-btn:hover {
  border-color: var(--color-amber);
  color: var(--color-navy);
}

.gal-filter-btn[aria-pressed="true"],
.gal-filter-btn.active {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
  font-weight: var(--font-weight-semi);
}

.gal-filter-btn[aria-pressed="true"] .gal-filter-count,
.gal-filter-btn.active .gal-filter-count {
  background: var(--color-amber);
  color: var(--color-navy-dark);
}

.gal-filter-count {
  background: var(--color-offwhite);
  color: var(--color-gray);
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: var(--font-weight-bold);
}

.gallery-counter-text {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ── Gallery Grid ────────────────────────────────────────────────────────── */
.gallery-section {
  padding-block: var(--space-12);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Gallery Card ────────────────────────────────────────────────────────── */
.gal-card {
  position: relative;
  background: var(--color-navy-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.gal-card:hover,
.gal-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-amber);
  outline: none;
}

.gal-card:focus-visible {
  box-shadow: 0 0 0 3px var(--color-amber);
}

.gal-card.hidden {
  display: none !important;
}

.gal-card__figure {
  margin: 0;
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-navy);
}

.gal-card--portrait .gal-card__figure {
  aspect-ratio: 3 / 4;
}

.gal-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  display: block;
}

.gal-card:hover .gal-card__img {
  transform: scale(1.04);
}

/* Subtle overlay on hover */
.gal-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 31, 43, 0.92) 0%, rgba(13, 31, 43, 0.3) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
  opacity: 0.95;
  transition: opacity var(--transition-fast);
}

.gal-card:hover .gal-card__overlay {
  opacity: 1;
}

.gal-card__tag {
  align-self: flex-start;
  font-size: 10px;
  font-weight: var(--font-weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-amber);
  background: rgba(13, 31, 43, 0.8);
  border: 1px solid rgba(214, 160, 68, 0.4);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

.gal-card__title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semi);
  color: var(--color-white);
  line-height: var(--leading-snug);
  margin: 0 0 var(--space-1) 0;
}

.gal-card__location {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  gap: 4px;
}

.gal-card__location svg {
  width: 12px;
  height: 12px;
  color: var(--color-amber);
}

.gal-card__zoom-icon {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(13, 31, 43, 0.75);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  opacity: 0;
  transform: scale(0.85);
  transition: all var(--transition-fast);
}

.gal-card:hover .gal-card__zoom-icon,
.gal-card:focus-visible .gal-card__zoom-icon {
  opacity: 1;
  transform: scale(1);
}

.gal-card__zoom-icon svg {
  width: 15px;
  height: 15px;
}

/* ── Lightbox Modal ──────────────────────────────────────────────────────── */
.gal-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(13, 31, 43, 0.96);
  backdrop-filter: blur(8px);
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gal-lightbox.is-open {
  display: flex;
  opacity: 1;
}

/* Lightbox Header */
.gal-lightbox__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.gal-lightbox__info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.gal-lightbox__counter {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semi);
  letter-spacing: 0.05em;
  color: var(--color-amber);
}

.gal-lightbox__category {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
  padding-left: var(--space-3);
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.gal-lightbox__close {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  padding: var(--space-2) var(--space-3);
  font-family: inherit;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semi);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
}

.gal-lightbox__close:hover,
.gal-lightbox__close:focus-visible {
  background: var(--color-amber);
  color: var(--color-navy-dark);
  border-color: var(--color-amber);
  outline: none;
}

.gal-lightbox__close svg {
  width: 16px;
  height: 16px;
}

/* Lightbox Stage (Image & Navigation Arrows) */
.gal-lightbox__stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-block: var(--space-3);
  overflow: hidden;
}

.gal-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(13, 31, 43, 0.7);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.gal-lightbox__nav:hover,
.gal-lightbox__nav:focus-visible {
  background: var(--color-amber);
  color: var(--color-navy-dark);
  border-color: var(--color-amber);
  outline: none;
}

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

.gal-lightbox__nav--prev {
  left: var(--space-2);
}

.gal-lightbox__nav--next {
  right: var(--space-2);
}

.gal-lightbox__image-wrapper {
  max-width: 88vw;
  max-height: 65vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gal-lightbox__img {
  max-width: 100%;
  max-height: 65vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Lightbox Caption */
.gal-lightbox__caption {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.gal-lightbox__title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semi);
  color: var(--color-white);
  margin: 0;
}

.gal-lightbox__desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--leading-relaxed);
  margin: 0;
  max-width: 80ch;
}

.gal-lightbox__meta {
  font-size: 11px;
  color: var(--color-amber);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ── Keyboard helper tooltip ─────────────────────────────────────────────── */
.gal-lightbox__keys {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

@media (max-width: 640px) {
  .gal-lightbox {
    padding: var(--space-3);
  }
  .gal-lightbox__nav {
    width: 36px;
    height: 36px;
  }
  .gal-lightbox__image-wrapper {
    max-height: 52vh;
  }
  .gal-lightbox__img {
    max-height: 52vh;
  }
  .gal-lightbox__desc {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}