/* ==========================================================================
   Chalukya Tiles — gallery.css
   Masonry gallery, filters, lightbox, video items, zoom animations.
   ========================================================================== */

.gallery-toolbar {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .gallery-toolbar {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
  }
}

.gallery-toolbar__meta {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  flex-shrink: 0;
  padding-top: var(--space-2);
}

.gallery-toolbar__meta strong {
  color: var(--color-charcoal);
  font-weight: var(--fw-semibold);
}

.gallery-filters {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.gallery-filters .filter-btn {
  flex-shrink: 0;
}

@media (min-width: 992px) {
  .gallery-filters {
    flex-wrap: wrap;
    overflow: visible;
    padding-bottom: 0;
  }
}

/* Masonry via CSS columns */
.gallery-masonry {
  column-count: 1;
  column-gap: var(--space-4);
}

@media (min-width: 560px) {
  .gallery-masonry {
    column-count: 2;
  }
}

@media (min-width: 900px) {
  .gallery-masonry {
    column-count: 3;
    column-gap: var(--space-5);
  }
}

@media (min-width: 1200px) {
  .gallery-masonry {
    column-count: 4;
  }
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-4);
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition:
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out);
}

@media (min-width: 900px) {
  .gallery-item {
    margin-bottom: var(--space-5);
  }
}

.gallery-item:hover,
.gallery-item:focus-within {
  box-shadow: var(--shadow-md);
  border-color: rgba(47, 125, 225, 0.45);
  transform: translateY(-3px);
}

.gallery-item[hidden],
.gallery-item.is-hidden {
  display: none !important;
}

.gallery-item__media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
}

.gallery-item__media img,
.gallery-item__media video {
  width: 100%;
  height: auto;
  display: block;
  background: #ffffff;
  transition: transform var(--duration-slower) var(--ease-out);
}

.gallery-item:hover .gallery-item__media img,
.gallery-item:hover .gallery-item__media video,
.gallery-item:focus-within .gallery-item__media img {
  transform: scale(1.06);
}

/* Tall / wide variants for visual rhythm */
.gallery-item--tall .gallery-item__media img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  width: 100%;
  height: auto;
}

.gallery-item--wide .gallery-item__media img,
.gallery-item--wide .gallery-item__media video {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

.gallery-item--square .gallery-item__media img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  width: 100%;
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
  background: linear-gradient(
    180deg,
    transparent 35%,
    rgba(13, 13, 13, 0.75) 100%
  );
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
  z-index: 1;
}

.gallery-item:hover .gallery-item__overlay,
.gallery-item:focus-within .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__title {
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-1);
}

.gallery-item__meta {
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.gallery-item__zoom {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-charcoal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.85);
  transition:
    opacity var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
  z-index: 2;
  border: none;
  box-shadow: var(--shadow-sm);
}

.gallery-item:hover .gallery-item__zoom,
.gallery-item:focus-within .gallery-item__zoom {
  opacity: 1;
  transform: scale(1);
}

.gallery-item__zoom svg {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
}

.gallery-item__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(1);
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-full);
  background: rgba(47, 125, 225, 0.95);
  color: var(--color-charcoal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
  box-shadow: var(--shadow-md);
  transition: transform var(--duration-base) var(--ease-out);
}

.gallery-item:hover .gallery-item__play {
  transform: translate(-50%, -50%) scale(1.08);
}

.gallery-item__play svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: currentColor;
  margin-left: 2px;
}

.gallery-item__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 2;
}

/* Empty state */
.gallery-empty {
  display: none;
  text-align: center;
  padding: var(--space-16) var(--space-6);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-bg-alt);
  margin-top: var(--space-4);
}

.gallery-empty.is-visible {
  display: block;
}

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--duration-base) var(--ease-out),
    visibility var(--duration-base) var(--ease-out);
}

.lightbox.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 13, 13, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: none;
  cursor: pointer;
}

.lightbox__dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 56rem);
  max-height: min(92vh, 56rem);
  display: flex;
  flex-direction: column;
  background: var(--color-charcoal);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: scale(0.94);
  transition: transform var(--duration-slow) var(--ease-out);
}

.lightbox.is-open .lightbox__dialog {
  transform: scale(1);
}

.lightbox__stage {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
  max-height: 75vh;
  background: #0d0d0d;
  overflow: hidden;
}

.lightbox__media {
  max-width: 100%;
  max-height: 75vh;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.96);
  transition:
    opacity var(--duration-base) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.lightbox__media.is-loaded {
  opacity: 1;
  transform: scale(1);
}

.lightbox__media--video {
  width: 100%;
  max-height: 75vh;
  background: #000;
}

.lightbox__caption {
  padding: var(--space-4) var(--space-5);
  background: var(--color-charcoal-soft);
  color: var(--color-stone-light);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
}

.lightbox__caption-title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
}

.lightbox__caption-meta {
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.lightbox__counter {
  font-size: var(--fs-xs);
  color: var(--color-stone);
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(26, 26, 26, 0.75);
  color: var(--color-white);
  transition:
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.lightbox__close:hover,
.lightbox__nav:hover {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
  color: var(--color-charcoal);
}

.lightbox__close {
  top: var(--space-3);
  right: var(--space-3);
}

.lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__nav--prev {
  left: var(--space-3);
}

.lightbox__nav--next {
  right: var(--space-3);
}

.lightbox__close svg,
.lightbox__nav svg {
  width: 1.2rem;
  height: 1.2rem;
  fill: currentColor;
}

.lightbox__nav:disabled {
  opacity: 0.35;
  pointer-events: none;
}

body.lightbox-open {
  overflow: hidden;
}

/* Gallery video section */
.gallery-videos {
  margin-top: var(--space-16);
}

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

@media (min-width: 768px) {
  .gallery-videos__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gallery-video-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  background: var(--color-white);
}

.gallery-video-card__player {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--color-charcoal);
}

.gallery-video-card__player video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-video-card__body {
  padding: var(--space-5);
}

.gallery-video-card__title {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
}

.gallery-video-card__text {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

@media (prefers-reduced-motion: reduce) {
  .gallery-item:hover,
  .lightbox__dialog,
  .lightbox__media {
    transform: none;
  }

  .gallery-item:hover .gallery-item__media img,
  .gallery-item:hover .gallery-item__media video {
    transform: none;
  }

  .lightbox.is-open .lightbox__dialog {
    transform: none;
  }
}