/* ==========================================================================
   Chantiers — page galerie
   ========================================================================== */

.page-hero {
  padding-top: clamp(var(--space-16), 10vw, var(--space-24));
  padding-bottom: clamp(var(--space-10), 6vw, var(--space-16));
}

.page-hero__title {
  font-size: var(--text-3xl);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-top: var(--space-6);
  max-width: 18ch;
}

.page-hero__lead {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.5;
}

/* ============================ FILTERS ============================ */
.gallery-filters {
  padding-block: var(--space-8);
  position: sticky;
  top: 64px;
  z-index: 30;
  background: color-mix(in oklab, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-divider);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.55rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
}

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

.filter-chip.is-active {
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-text-inverse);
}

.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5em;
  height: 1.5em;
  padding: 0 0.4em;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--color-divider);
}

.filter-chip.is-active .filter-count {
  background: color-mix(in oklab, var(--color-text-inverse) 18%, transparent);
  color: var(--color-text-inverse);
  border-color: transparent;
}

/* ============================ GRID ============================ */
.gallery {
  padding-top: clamp(var(--space-10), 6vw, var(--space-16));
  padding-bottom: clamp(var(--space-20), 10vw, var(--space-32));
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 600px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }
}

.gallery-item {
  opacity: 1;
  transition: opacity 300ms ease, transform 300ms ease;
}

.gallery-item.is-hidden {
  display: none;
}

.gallery-item__link {
  position: relative;
  display: block;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-2);
  text-decoration: none;
  color: var(--color-text-inverse);
  cursor: zoom-in;
  border: 1px solid var(--color-divider);
}

.gallery-item__link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item__link:hover img {
  transform: scale(1.05);
}

.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 30%,
    rgba(15, 15, 17, 0.05) 50%,
    rgba(15, 15, 17, 0.85) 100%
  );
  opacity: 0;
  transition: opacity 300ms ease;
}

.gallery-item__link:hover .gallery-item__overlay,
.gallery-item__link:focus-visible .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__tag {
  display: inline-flex;
  align-self: flex-start;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
  font-weight: 500;
}

.gallery-item__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: #ffffff;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.gallery-item__location {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: var(--space-2);
}

.gallery-empty {
  padding: var(--space-16) 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

/* ============================ LIGHTBOX ============================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(15, 15, 17, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(var(--space-4), 4vw, var(--space-10));
  opacity: 0;
  transition: opacity 250ms ease;
}

.lightbox.is-open {
  display: flex;
  opacity: 1;
}

.lightbox__inner {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.lightbox__img {
  max-width: 100%;
  max-height: calc(100vh - 8rem);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox__caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-sm);
}

.lightbox__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  letter-spacing: -0.01em;
}

.lightbox__counter {
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.55);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  z-index: 2;
  transition: background 180ms;
}

.lightbox__close:hover,
.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.22);
}

.lightbox__close {
  top: clamp(var(--space-4), 4vw, var(--space-8));
  right: clamp(var(--space-4), 4vw, var(--space-8));
}

.lightbox__nav--prev {
  left: clamp(var(--space-2), 2vw, var(--space-6));
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__nav--next {
  right: clamp(var(--space-2), 2vw, var(--space-6));
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 600px) {
  .lightbox__nav { width: 40px; height: 40px; }
}

/* ============================ CTA ============================ */
.page-cta {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

[data-theme='dark'] .page-cta {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.page-cta .eyebrow {
  color: var(--color-accent);
}

.page-cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.page-cta__title {
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: -0.025em;
  margin-top: var(--space-4);
  max-width: 18ch;
}

.page-cta__text {
  margin-top: var(--space-3);
  color: color-mix(in oklab, var(--color-text-inverse) 75%, transparent);
  font-size: var(--text-lg);
  max-width: 50ch;
}

[data-theme='dark'] .page-cta__text {
  color: var(--color-text-muted);
}

/* Active page link */
.nav a[aria-current='page'] {
  color: var(--color-text);
}

.nav a[aria-current='page']::after {
  transform: scaleX(1);
}