/* ==========================================================================
   Sabte Kalhor — Professional Gallery
   Scoped: .gallery-page / .gallery-lightbox
   ========================================================================== */

.gallery-page,
.gallery-lightbox {
  --gal-navy: #1b2a4a;
  --gal-navy-soft: #27406c;
  --gal-gold: #c9a227;
  --gal-gold-soft: #e8c547;
  --gal-bg: #f7f8fa;
  --gal-surface: #ffffff;
  --gal-muted: #6b7280;
  --gal-ink: #243044;
  --gal-border: rgba(27, 42, 74, 0.1);
  --gal-shadow: 0 10px 28px rgba(27, 42, 74, 0.1);
  --gal-shadow-hover: 0 18px 40px rgba(27, 42, 74, 0.16);
  --gal-radius: 16px;
  --gal-ease: cubic-bezier(0.22, 1, 0.36, 1);
  direction: rtl;
  text-align: right;
  color: var(--gal-ink);
}

.gallery-hero {
  padding: 3.5rem 0 2.25rem;
  background:
    radial-gradient(900px 240px at 0% 0%, rgba(201, 162, 39, 0.14), transparent 55%),
    linear-gradient(135deg, #1b2a4a 0%, #27406c 55%, #1b2a4a 100%);
  color: #fff;
}

.gallery-hero__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gal-gold-soft);
}

.gallery-hero__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 800;
  line-height: 1.35;
}

.gallery-hero__lead {
  margin: 0;
  max-width: 36rem;
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.86);
}

.gallery-section {
  padding: 2.5rem 0 4rem;
  background: var(--gal-bg);
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.75rem;
}

.gallery-filters__chip {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--gal-border);
  background: var(--gal-surface);
  color: var(--gal-navy);
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.25s var(--gal-ease), color 0.25s var(--gal-ease), border-color 0.25s var(--gal-ease), transform 0.25s var(--gal-ease);
}

.gallery-filters__chip:hover {
  border-color: rgba(201, 162, 39, 0.45);
  color: var(--gal-navy);
  transform: translateY(-1px);
  text-decoration: none;
}

.gallery-filters__chip.is-active {
  background: var(--gal-navy);
  border-color: var(--gal-navy);
  color: #fff;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.gallery-card {
  margin: 0;
  border-radius: var(--gal-radius);
  overflow: hidden;
  background: var(--gal-surface);
  box-shadow: var(--gal-shadow);
  transition: transform 0.3s var(--gal-ease), box-shadow 0.3s var(--gal-ease);
}

.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--gal-shadow-hover);
}

.gallery-card__trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: right;
  cursor: pointer;
  color: inherit;
}

.gallery-card__media {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #e8ecf2;
}

.gallery-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--gal-ease);
}

.gallery-card:hover .gallery-card__media img {
  transform: scale(1.06);
}

.gallery-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(27, 42, 74, 0.42);
  color: #fff;
  font-size: 1.35rem;
  opacity: 0;
  transition: opacity 0.3s var(--gal-ease);
}

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

.gallery-card__caption {
  padding: 1rem 1.1rem 1.15rem;
}

.gallery-card__cat {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gal-gold);
}

.gallery-card__title {
  display: block;
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--gal-navy);
  line-height: 1.5;
}

.gallery-card__desc {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.84rem;
  color: var(--gal-muted);
  line-height: 1.7;
}

.gallery-empty {
  text-align: center;
  padding: 3rem 1rem;
  background: var(--gal-surface);
  border-radius: var(--gal-radius);
  border: 1px dashed var(--gal-border);
}

.gallery-empty__link {
  color: var(--gal-navy-soft);
  font-weight: 700;
}

.gallery-pagination {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.gallery-pagination .pagination {
  margin: 0;
  flex-wrap: wrap;
  justify-content: center;
}

/* Lightbox */
.gallery-lightbox[hidden] {
  display: none !important;
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.gallery-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 16, 28, 0.88);
}

.gallery-lightbox__dialog {
  position: relative;
  z-index: 1;
  width: min(960px, 100%);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.gallery-lightbox__img {
  max-width: 100%;
  max-height: 68vh;
  border-radius: 12px;
  object-fit: contain;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  background: #111;
}

.gallery-lightbox__meta {
  margin-top: 1rem;
  text-align: center;
  color: #fff;
  max-width: 40rem;
}

.gallery-lightbox__cat {
  margin: 0 0 0.25rem;
  color: var(--gal-gold-soft);
  font-size: 0.8rem;
  font-weight: 700;
}

.gallery-lightbox__title {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
  font-weight: 800;
}

.gallery-lightbox__desc,
.gallery-lightbox__date {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
}

.gallery-lightbox__close {
  position: absolute;
  top: -0.25rem;
  left: 0;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}

.gallery-lightbox__nav {
  position: absolute;
  top: 40%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
}

.gallery-lightbox__nav--prev { right: 0.25rem; }
.gallery-lightbox__nav--next { left: 0.25rem; }

@media (max-width: 991px) {
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 575px) {
  .gallery-hero {
    padding: 2.5rem 0 1.75rem;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-lightbox__nav {
    top: auto;
    bottom: 5.5rem;
    transform: none;
  }
}