/* Gallery page. Loaded by gallery/index.html only. Albums and photos are built by
   assets/js/gallery.js from data/gallery.txt. Two views: the events (album cards, the newest
   one as a large green feature card) and one album (header, section filter, photo grid,
   previous/next album). The photo viewer is shared. */

/* ---------- Album filter ---------- */
.gallery-bar {
  padding: var(--space-3);
  border: 1px solid var(--c-rule);
  border-radius: calc(var(--radius-l) - 8px);
  background: var(--c-surface);
  box-shadow: var(--shadow-card);
}

.album-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  max-inline-size: none;
  margin: 0;
  padding: 0;
  list-style: none;
}

.album-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-block-size: 44px;
  padding-inline: var(--space-4) var(--space-2);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-pill);
  background: var(--c-surface);
  color: var(--c-ink);
  font-size: var(--fs-small);
  font-weight: 700;
  text-align: start;
  cursor: pointer;
}

.album-filter__btn:hover {
  border-color: var(--c-emerald);
}

.album-filter__btn[aria-pressed="true"] {
  border-color: var(--c-emerald);
  background: var(--c-emerald);
  color: var(--c-on-emerald);
}

.album-filter__count {
  min-inline-size: 1.75rem;
  padding: 0 var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--c-dawn);
  color: var(--c-ink);
  font-size: 0.875rem;
  text-align: center;
}

.album-filter__btn[aria-pressed="true"] .album-filter__count {
  background: var(--c-on-emerald);
  color: var(--c-emerald);
}

/* ---------- Views ---------- */
.gallery-view {
  scroll-margin-block-start: calc(var(--header-h) + var(--space-4));
}

.gallery-view[hidden] {
  display: none;
}

/* ---------- Events view: heading and type filter ---------- */
.gallery-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4) var(--space-6);
  margin-block-end: var(--space-6);
}

.gallery-head__title {
  font-size: var(--fs-h2);
}

.gallery-head__meta {
  margin-block-start: 2px;
  color: var(--c-brass-text);
  font-size: var(--fs-small);
  font-weight: 700;
}

/* ---------- Event cards ---------- */
.event-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  max-inline-size: none;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .event-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .event-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6) var(--space-5);
  }
}

.event-card__link {
  display: flex;
  flex-direction: column;
  block-size: 100%;
  overflow: hidden;
  border: 1px solid var(--c-rule);
  border-radius: calc(var(--radius-l) - 8px);
  background: var(--c-surface);
  box-shadow: var(--shadow-card);
  color: var(--c-ink);
  text-decoration: none;
  transition:
    translate 250ms ease,
    box-shadow 250ms ease;
}

.event-card__link:hover {
  translate: 0 -4px;
  box-shadow: var(--shadow-photo);
}

.event-card__media {
  position: relative;
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--c-dawn);
}

.event-card__media img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  transition: scale 400ms ease;
}

.event-card__link:hover .event-card__media img,
.event-card__link:focus-visible .event-card__media img {
  scale: 1.05;
}

.event-card__year {
  position: absolute;
  inset-block-start: var(--space-3);
  inset-inline-start: var(--space-3);
  padding: 0.125rem var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--c-surface);
  box-shadow: var(--shadow-logo);
  color: var(--c-emerald);
  font-family: var(--font-head);
  font-size: var(--fs-small);
  font-weight: 700;
}

.event-card__count {
  position: absolute;
  inset-block-end: var(--space-3);
  inset-inline-end: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.125rem var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--c-scrim-strong);
  color: var(--c-on-night);
  font-size: 0.875rem;
  font-weight: 700;
}

.event-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
}

.event-card__type {
  color: var(--c-brass-text);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.event-card__title {
  font-size: 1.1875rem;
  line-height: 1.3;
}

.event-card__facts,
.album__facts {
  display: grid;
  gap: var(--space-1);
  max-inline-size: none;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--c-ink-soft);
  font-size: 0.9375rem;
}

.event-card__facts li,
.album__facts li {
  display: flex;
  align-items: start;
  gap: var(--space-2);
}

.event-card__facts .icon,
.album__facts .icon {
  flex: none;
  margin-block-start: 0.2em;
  color: var(--c-brass-text);
}

.event-card__more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-block-start: auto;
  padding-block-start: var(--space-3);
  color: var(--c-emerald);
  font-size: var(--fs-small);
  font-weight: 700;
}

.event-card__more .icon {
  transition: translate 200ms ease;
}

.event-card__link:hover .event-card__more .icon {
  translate: 4px 0;
}

.event-card__summary,
.event-card__strip {
  display: none;
}

/* The newest event in "All events": full width, photo beside a green panel */
.event-card--feature {
  grid-column: 1 / -1;
}

.event-card--feature .event-card__link {
  --focus: var(--c-brass);
  border-color: var(--c-night);
  background: var(--c-night);
  color: var(--c-on-night);
}

.event-card--feature .event-card__body {
  position: relative;
  isolation: isolate;
}

/* Khatam texture behind the green panel (same as .textured in layout.css) */
.event-card--feature .event-card__body::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--c-on-night);
  opacity: var(--texture-opacity);
  -webkit-mask: url("/assets/images/pattern-khatam.svg") repeat;
  mask: url("/assets/images/pattern-khatam.svg") repeat;
  -webkit-mask-size: 48px 48px;
  mask-size: 48px 48px;
  pointer-events: none;
}

.event-card--feature .event-card__type,
.event-card--feature .event-card__facts,
.event-card--feature .event-card__summary {
  color: var(--c-on-night-soft);
}

.event-card--feature .event-card__facts .icon {
  color: var(--c-brass);
}

.event-card--feature .event-card__title {
  color: var(--c-on-night);
  font-size: clamp(1.375rem, 1.2rem + 0.9vw, 1.875rem);
}

.event-card--feature .event-card__summary {
  display: block;
  line-height: 1.55;
}

.event-card--feature .event-card__more {
  align-self: start;
  min-block-size: 48px;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--c-on-night);
  color: var(--c-night);
}

.event-card--feature .event-card__link:hover .event-card__more {
  background: var(--c-on-night-soft);
}

@media (min-width: 768px) {
  .event-card--feature .event-card__link {
    flex-direction: row;
  }

  .event-card--feature .event-card__media {
    flex: 1.4;
    aspect-ratio: auto;
    min-block-size: 26rem;
  }

  .event-card--feature .event-card__body {
    flex: 1;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-6);
  }

  .event-card--feature .event-card__strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-2);
    margin-block-start: var(--space-2);
  }

  .event-card__strip img {
    aspect-ratio: 1;
    inline-size: 100%;
    block-size: auto;
    border-radius: var(--radius-m);
    object-fit: cover;
  }

  .event-card--feature .event-card__more {
    margin-block-start: var(--space-3);
  }
}

/* ---------- Album view ---------- */
.album__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-block-size: 44px;
  padding-inline: var(--space-3) var(--space-4);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-pill);
  background: var(--c-surface);
  color: var(--c-emerald);
  font-size: var(--fs-small);
  font-weight: 700;
  text-decoration: none;
}

.album__back:hover {
  border-color: var(--c-emerald);
}

.album__head {
  display: grid;
  gap: var(--space-3);
  margin-block: var(--space-5) var(--space-6);
  padding-block-end: var(--space-5);
  border-block-end: 1px solid var(--c-rule);
}

.album__type {
  color: var(--c-brass-text);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.album__title {
  max-inline-size: 30ch;
  font-size: var(--fs-h1);
}

/* Focus moves here when an album opens (for screen readers); no ring on a heading */
.album__title:focus {
  outline: none;
}

.album__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  font-size: var(--fs-small);
}

.album__summary {
  max-inline-size: var(--measure);
  color: var(--c-ink-soft);
}

.album__summary[hidden] {
  display: none;
}

.album .gallery-bar {
  margin-block-end: var(--space-6);
}

/* One group of photos per section (e.g. per city) */
.album__photos {
  display: grid;
  gap: var(--space-7);
}

.photo-group__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  margin-block-end: var(--space-4);
  font-size: var(--fs-h3);
}

.photo-group__count {
  color: var(--c-brass-text);
  font-family: var(--font-body);
  font-size: var(--fs-small);
}

/* ---------- Previous and next album ---------- */
.album-pager {
  display: grid;
  gap: var(--space-4);
  margin-block-start: var(--space-7);
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--c-rule);
}

@media (min-width: 768px) {
  .album-pager {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .album-pager__link--next {
    grid-column: 2;
  }
}

.album-pager__link {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-m);
  background: var(--c-surface);
  color: var(--c-ink);
  text-decoration: none;
}

.album-pager__link:hover {
  border-color: var(--c-emerald);
}

.album-pager__link img {
  flex: none;
  inline-size: 6rem;
  block-size: 4rem;
  border-radius: var(--radius-s);
  object-fit: cover;
}

.album-pager__link > .icon {
  flex: none;
  color: var(--c-emerald);
}

.album-pager__link--prev > .icon {
  order: -1;
}

.album-pager__link--next {
  text-align: end;
}

.album-pager__link--next .album-pager__text {
  order: -1;
}

.album-pager__text {
  display: grid;
  flex: 1;
  gap: 2px;
}

.album-pager__label {
  color: var(--c-brass-text);
  font-size: 0.875rem;
  font-weight: 700;
}

.album-pager__title {
  font-weight: 700;
  line-height: 1.35;
}

/* ---------- Photo grid: square tiles, one in every five twice the size (see isWide() in
   gallery.js) ---------- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-flow: dense;
  gap: var(--space-3);
  max-inline-size: none;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 768px) {
  .photo-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .photo-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.photo {
  aspect-ratio: 1;
}

.photo--wide {
  grid-column: span 2;
  grid-row: span 2;
}

.photo__btn {
  position: relative;
  display: block;
  inline-size: 100%;
  block-size: 100%;
  overflow: hidden;
  padding: 0;
  border: 0;
  border-radius: var(--radius-m);
  background: var(--c-dawn);
  cursor: zoom-in;
}

.photo__btn img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  transition: scale 400ms ease;
}

.photo__btn:hover img,
.photo__btn:focus-visible img {
  scale: 1.05;
}

.photo__zoom {
  position: absolute;
  inset-block-start: var(--space-3);
  inset-inline-end: var(--space-3);
  display: grid;
  place-items: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border-radius: 50%;
  background: var(--c-surface);
  color: var(--c-emerald);
  opacity: 0;
  transition: opacity 200ms ease;
}

.photo__btn:hover .photo__zoom,
.photo__btn:focus-visible .photo__zoom {
  opacity: 1;
}

/* An album of one photo: show it whole, not cropped to a square */
.photo-grid--single {
  grid-template-columns: minmax(0, 1fr);
  max-inline-size: 60rem;
}

.photo-grid--single .photo {
  aspect-ratio: auto;
}

.photo-grid--single .photo__btn img {
  block-size: auto;
}

.gallery-noscript {
  padding: var(--space-5);
  border: 1px solid var(--c-rule);
  border-radius: var(--radius-m);
  background: var(--c-surface);
}

/* ---------- Viewer ---------- */
.lightbox {
  --focus: var(--c-brass);
  inline-size: 100%;
  max-inline-size: none;
  block-size: 100%;
  max-block-size: none;
  margin: 0;
  padding: var(--space-3);
  border: 0;
  background: var(--c-charcoal);
  color: var(--c-on-night);
}

.lightbox[open] {
  display: flex;
  flex-direction: column;
}

.lightbox::backdrop {
  background: var(--c-charcoal);
}

.lightbox-open {
  overflow: hidden;
}

.lightbox__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.lightbox__count {
  font-weight: 700;
}

.lightbox__close {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-block-size: 44px;
  padding-inline: var(--space-4);
  border: 1px solid color-mix(in srgb, var(--c-on-night) 40%, transparent);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--c-on-night);
  font-weight: 700;
  cursor: pointer;
}

.lightbox__stage {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-block-size: 0;
}

.lightbox__figure {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  justify-items: center;
  gap: var(--space-3);
  block-size: 100%;
  min-block-size: 0;
}

.lightbox__img {
  align-self: center;
  max-inline-size: 100%;
  max-block-size: 100%;
  inline-size: auto;
  block-size: auto;
  border-radius: var(--radius-m);
  object-fit: contain;
  opacity: 0;
  transition: opacity 150ms ease;
}

.lightbox.is-shown .lightbox__img {
  opacity: 1;
}

.lightbox__caption {
  display: grid;
  gap: 2px;
  max-inline-size: 60ch;
  text-align: center;
}

.lightbox__album {
  color: var(--c-on-night-soft);
  font-size: var(--fs-small);
}

.lightbox__nav {
  display: grid;
  place-items: center;
  inline-size: 48px;
  block-size: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--c-on-night);
  color: var(--c-night);
  cursor: pointer;
}

.lightbox__nav:hover {
  background: var(--c-on-night-soft);
}

.lightbox__nav[hidden] {
  display: none;
}

/* Phones: arrows overlap the photo edges */
@media (max-width: 599.98px) {
  .lightbox__stage {
    position: relative;
    grid-template-columns: minmax(0, 1fr);
  }

  .lightbox__nav {
    position: absolute;
    inset-block-start: 40%;
    z-index: 1;
  }

  .lightbox__nav--prev {
    inset-inline-start: 0;
  }

  .lightbox__nav--next {
    inset-inline-end: 0;
  }
}

@media (min-width: 768px) {
  .lightbox {
    padding: var(--space-5) var(--space-6);
  }

  .lightbox__stage {
    gap: var(--space-5);
  }
}