.gallery-main {
  padding-top: 6rem;
  min-height: 100vh;
}

/* Page header */
.page-header {
  padding: 0 4rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid rgba(20,20,20,0.08);
  margin-bottom: 1.25rem;
}

.page-header .label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-header .label::before {
  content: '—';
  color: var(--accent-red);
}

.page-header .display {
  font-weight: 700;
  font-size: clamp(2.6rem, 7.5vw, 6.5rem);
  color: var(--text);
  display: inline-block;
  line-height: 0.85;
  letter-spacing: -0.02em;
  transition: letter-spacing 0.6s cubic-bezier(.25,.46,.45,.94),
              transform 0.4s cubic-bezier(.25,.46,.45,.94);
  transform-origin: center;
}

.page-header .display:hover {
  letter-spacing: 0.04em;
  transform: scaleY(1.03);
}

/* Filters */
.filters-sentinel {
  height: 1px;
}

.gallery-filters {
  position: sticky;
  top: 88px;
  z-index: 50;
  padding: 1rem 4rem;
  margin-bottom: 2rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  align-items: center;
  background: transparent;
  backdrop-filter: blur(0px) saturate(1);
  -webkit-backdrop-filter: blur(0px) saturate(1);
  border-bottom: 1px solid transparent;
  transition: background 0.5s ease, backdrop-filter 0.5s ease,
              -webkit-backdrop-filter 0.5s ease, border-color 0.5s ease;
}

.gallery-filters.is-stuck {
  background: rgba(248,248,246,0.55);
  backdrop-filter: blur(14px) saturate(1.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  border-bottom-color: rgba(14,14,14,0.07);
}

:root[data-theme="dark"] .gallery-filters.is-stuck {
  background: rgba(14,14,14,0.55);
  border-bottom-color: rgba(245,245,243,0.08);
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text-light);
  transition: color 0.2s;
  position: relative;
  padding-bottom: 3px;
}

.filter-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-red);
  transition: width 0.25s;
}

.filter-btn.active {
  color: var(--text);
}

.filter-btn.active::after,
.filter-btn:hover::after {
  width: 100%;
}

.filter-btn:hover {
  color: var(--text);
}

/* Albums grid */
.albums-grid {
  padding: 0 4rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 520px;
  gap: 0.75rem;
  margin-bottom: 8rem;
}

.album-card {
  position: relative;
  overflow: hidden;
  background: #e8e5de;
}


/* Index badge */
.album-index {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.48rem;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.5);
  z-index: 2;
  transition: opacity 0.3s;
}

.album-card:hover .album-index {
  opacity: 0;
}

.album-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform 0.8s cubic-bezier(.25,.46,.45,.94), filter 0.5s;
  display: block;
}

.album-card:hover img {
  transform: scale(1.04);
  filter: grayscale(50%);
}

.album-card img[data-color="true"],
.album-card:hover img[data-color="true"] {
  filter: none;
}

.album-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  background: rgba(0,0,0,0.55);
  opacity: 0.35;
  transition: opacity 0.4s;
}

.album-card:hover .album-overlay {
  opacity: 1;
}

.album-overlay .label { display: none; }

.album-overlay h3 {
  font-family: var(--font-display);
  color: var(--white);
  font-size: clamp(1.8rem, 4.5vw, 4rem);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-align: center;
  max-width: 100%;
  word-break: normal;
  overflow-wrap: break-word;
}

.album-count {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-top: 0.75rem;
  display: block !important;
}

.loading-state,
.empty-state {
  grid-column: 1 / -1;
  padding: 6rem 0;
  text-align: center;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  max-width: 62vw;
  max-height: 78vh;
}

.lightbox-img {
  max-width: 62vw;
  max-height: 68vh;
  object-fit: contain;
  filter: grayscale(100%);
  display: block;
}

.lightbox-img[data-color="true"] {
  filter: none;
}

.lightbox-info {
  display: none;
  width: 80vw;
  text-align: right;
  padding-top: 0.6rem;
}

#lightbox-caption {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--text-light);
  line-height: 1.8;
}

.lightbox-close {
  position: fixed;
  top: 2rem;
  right: 2.5rem;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  transition: color 0.2s;
  padding: 0;
  z-index: 1002;
  opacity: 0;
  pointer-events: none;
}

.lightbox-close:hover { color: var(--text); }

.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-light);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 1rem;
  transition: color 0.2s;
  z-index: 1002;
  opacity: 0;
  pointer-events: none;
}

.lightbox-nav:hover { color: var(--text); }
.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }

/* Album detail */
.album-detail {
  padding: 0 0 8rem;
}

.album-detail-header {
  padding-left: 4rem;
  padding-right: 4rem;
}

.album-detail-header {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  padding: 2rem 4rem 3rem;
  border-bottom: 1px solid rgba(20,20,20,0.08);
  margin-bottom: 0;
}

.album-detail-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  text-transform: uppercase;
  line-height: 1;
  color: var(--text);
}

.album-detail-desc {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-light);
  margin-top: 0.75rem;
  line-height: 1.6;
  max-width: 480px;
}

.back-btn {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  background: none;
  border: none;
  color: var(--text-light);
  padding: 0;
  transition: color 0.2s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.back-btn::before {
  content: '←';
  transition: transform 0.2s;
}

.back-btn:hover { color: var(--accent-red); }
.back-btn:hover::before { transform: translateX(-4px); }

.photos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--bg);
}

.photo-cell {
  overflow: hidden;
  aspect-ratio: 3/2;
}

.photo-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(100%);
  transition: filter 0.5s, transform 0.5s cubic-bezier(.25,.46,.45,.94);
}

.photo-thumb:hover {
  filter: grayscale(15%);
  transform: scale(1.04);
}

.photo-thumb[data-color="true"],
.photo-thumb[data-color="true"]:hover {
  filter: none;
}

/* Responsive */
@media (max-width: 900px) {
  .page-header,
  .gallery-filters,
  .albums-grid { padding-left: 1.5rem; padding-right: 1.5rem; }
  .album-detail { padding: 0 1.5rem 5rem; }
  .albums-grid { grid-template-columns: 1fr; grid-auto-rows: unset; }
  .album-card { aspect-ratio: 16 / 9; }
  .album-card img { object-position: center; }
  .photos-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .lightbox-content { max-width: 92vw; }
  .lightbox-img { max-width: 92vw; max-height: 68vh; }
  .lightbox-info { width: 92vw; }

  .lightbox-nav {
    top: auto;
    bottom: 4.5rem;
    transform: none;
    left: 50%;
    right: auto;
  }

  .lightbox-prev { transform: translateX(calc(-100% - 0.75rem)); }
  .lightbox-next { transform: translateX(0.75rem); }
}