/* ═══════════════════════════════════════════════
   NIA PAINTS — Gallery Page Styles
   Shared across all gallery sub-pages
   ═══════════════════════════════════════════════ */

/* ── Gallery Page Hero ──────────────────────── */
.gallery-hero {
  position: relative;
  height: 50vh;
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.gallery-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(14, 14, 14, 0.6) 0%,
    rgba(14, 14, 14, 0.4) 40%,
    rgba(14, 14, 14, 0.75) 100%
  );
}
.gallery-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  padding: 0 2rem;
}
.gallery-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 0.8rem;
  opacity: 0;
  animation: fadeInUp 1s 0.3s forwards;
}
.gallery-hero__subtitle {
  font-family: var(--font-body);
  font-size: 1.2rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  opacity: 0;
  animation: fadeInUp 1s 0.5s forwards;
}

/* ── Masonry Gallery Grid ───────────────────── */
.masonry {
  padding: var(--section-pad) 0;
  background: var(--color-bg);
}
.masonry__grid {
  columns: 3;
  column-gap: 1rem;
}
.masonry__item {
  break-inside: avoid;
  margin-bottom: 1rem;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border-radius: 2px;
}
.masonry__item img {
  width: 100%;
  display: block;
  transition: transform 0.7s ease;
}
.masonry__item:hover img {
  transform: scale(1.04);
}
.masonry__caption {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 1.2rem;
  background: linear-gradient(
    to top,
    rgba(14, 14, 14, 0.75) 0%,
    transparent 45%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
}
.masonry__item:hover .masonry__caption {
  opacity: 1;
}
.masonry__caption span {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-white);
}

/* ── Lightbox ───────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  cursor: zoom-out;
}
.lightbox.active {
  opacity: 1;
  visibility: visible;
}
.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 2px;
  transform: scale(0.9);
  transition: transform 0.4s ease;
}
.lightbox.active .lightbox__img {
  transform: scale(1);
}
.lightbox__close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.lightbox__close:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--color-white);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.lightbox__nav:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}
.lightbox__nav--prev { left: 2rem; }
.lightbox__nav--next { right: 2rem; }

/* ── Section Dividers ───────────────────────── */
.divider-section {
  padding: clamp(60px, 10vw, 120px) 0;
  background: var(--color-bg-warm);
}
.divider-section__inner {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.divider-section p {
  font-size: 1.15rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* ── Framed / Certificate Grid ──────────────── */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}
.showcase-grid__item {
  overflow: hidden;
  border-radius: 2px;
  position: relative;
}
.showcase-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/5;
  transition: transform 0.7s ease;
}
.showcase-grid__item:hover img {
  transform: scale(1.04);
}

/* ── Back to top / back nav ─────────────────── */
.gallery-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  transition: color var(--transition);
}
.gallery-back:hover {
  color: var(--color-gold);
}
.gallery-back svg {
  width: 16px;
  height: 16px;
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 1024px) {
  .masonry__grid {
    columns: 2;
  }
}
@media (max-width: 768px) {
  .gallery-hero {
    background-attachment: scroll;
    height: 40vh;
  }
  .masonry__grid {
    columns: 2;
  }
  .showcase-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}
@media (max-width: 480px) {
  .masonry__grid {
    columns: 1;
  }
}

/* ── Mobile: always-visible captions ────────── */
@media (hover: none), (max-width: 768px) {
  .masonry__caption {
    opacity: 1;
    background: linear-gradient(
      to top,
      rgba(14, 14, 14, 0.8) 0%,
      transparent 55%
    );
  }
  .masonry__caption span {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
  }
}

/* ── Lightbox caption ───────────────────────── */
.lightbox__caption {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-white);
  text-align: center;
  opacity: 0.85;
  pointer-events: none;
  white-space: nowrap;
}

/* ── Scroll-to-top button ───────────────────── */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(212, 168, 67, 0.4);
  background: rgba(14, 14, 14, 0.85);
  color: var(--color-gold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover {
  border-color: var(--color-gold);
  background: rgba(212, 168, 67, 0.15);
}
.scroll-top svg {
  width: 20px;
  height: 20px;
}