/* =====================================================================
   DELTA-IMMO — galerie des biens
   ===================================================================== */

.filters {
  position: sticky;
  top: var(--header-h);
  z-index: 50;
  background: rgba(247, 243, 236, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-block: 1px solid var(--line);
}
.filters__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
  padding-block: 0.9rem;
}
.filters__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.filter-btn {
  position: relative;
  padding: 0.55rem 0.95rem;
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border-radius: 999px;
  transition: color 0.3s, background 0.3s;
}
.filter-btn:hover { color: var(--ink); }
.filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--ivory-3);
}
.filters__tools {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--muted);
}
.filters__count strong { color: var(--ink); font-weight: 500; }
.select {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.select select {
  appearance: none;
  -webkit-appearance: none;
  padding: 0.55rem 2.2rem 0.55rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  cursor: pointer;
}
.select::after {
  content: "";
  position: absolute;
  right: 0.9rem;
  width: 0.45rem;
  height: 0.45rem;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  transform: translateY(-2px) rotate(45deg);
  pointer-events: none;
}

.gallery { padding-block: var(--space-5) var(--section); }
.gallery .properties {
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 1000px) { .gallery .properties { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 800px) {
  .filters__inner { gap: 0.75rem var(--space-2); padding-block: 0.75rem; }
  .filters__list {
    flex: 1 1 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin-inline: calc(-1 * var(--gutter));
    padding-inline: var(--gutter);
    mask-image: linear-gradient(90deg, #000 88%, transparent);
    -webkit-mask-image: linear-gradient(90deg, #000 88%, transparent);
  }
  .filters__list::-webkit-scrollbar { display: none; }
  .filter-btn { flex: none; }
  .filters__tools { width: 100%; justify-content: space-between; }
}
@media (max-width: 620px) { .gallery .properties { grid-template-columns: 1fr; } }

.property.is-hidden { display: none; }
.property.is-entering { animation: card-in 0.7s var(--ease-out) both; animation-delay: calc(var(--i, 0) * 55ms); }
@keyframes card-in {
  from { opacity: 0; translate: 0 18px; }
  to { opacity: 1; translate: 0 0; }
}

.gallery__empty {
  padding: var(--space-5) 0;
  text-align: center;
  color: var(--muted);
}
.gallery__empty[hidden] { display: none; }

/* ---------------- LIGHTBOX ---------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: rgba(10, 11, 13, 0.96);
  color: var(--ivory);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease-out), visibility 0s 0.35s;
}
.lightbox[hidden] { display: none; }
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.35s var(--ease-out), visibility 0s;
}
.lightbox__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--gutter);
}
.lightbox__counter {
  font-family: var(--font-serif);
  letter-spacing: 0.14em;
  color: rgba(247, 243, 236, 0.7);
}
.lightbox__counter strong { color: var(--ivory); font-weight: 500; }
.lightbox__close,
.lightbox__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid rgba(247, 243, 236, 0.3);
  border-radius: 50%;
  color: var(--ivory);
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease-out);
}
.lightbox__close:hover,
.lightbox__arrow:hover { border-color: var(--gold); background: rgba(198, 168, 106, 0.18); }
.lightbox__close svg,
.lightbox__arrow svg { width: 1.1rem; height: 1.1rem; }

.lightbox__stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 0 clamp(4rem, 8vw, 7rem);
  min-height: 0;
}
.lightbox__figure {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 0;
}
.lightbox__img {
  max-width: 100%;
  max-height: calc(100vh - 12rem);
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.8);
  opacity: 1;
  transition: opacity 0.35s var(--ease-out), transform 0.5s var(--ease-out);
}
.lightbox.is-loading .lightbox__img { opacity: 0; transform: scale(0.985); }
.lightbox.is-loading.is-next .lightbox__img { transform: translateX(36px) scale(0.985); }
.lightbox.is-loading.is-prev .lightbox__img { transform: translateX(-36px) scale(0.985); }
.lightbox__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.lightbox__arrow--prev { left: var(--gutter); }
.lightbox__arrow--next { right: var(--gutter); }

.lightbox__caption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem var(--space-3);
  padding: 1.25rem var(--gutter) 1.5rem;
  border-top: 1px solid rgba(247, 243, 236, 0.12);
}
.lightbox__title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
}
.lightbox__meta { font-size: var(--fs-sm); color: rgba(247, 243, 236, 0.7); letter-spacing: 0.05em; }
.lightbox__price {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--gold);
}

@media (max-width: 700px) {
  .lightbox__stage { padding: 0 var(--gutter); }
  .lightbox__arrow { width: 2.5rem; height: 2.5rem; top: auto; bottom: -3.6rem; transform: none; }
  .lightbox__arrow--prev { left: auto; right: calc(var(--gutter) + 3.2rem); }
  .lightbox__caption { padding-right: 7.5rem; min-height: 5.5rem; }
  .lightbox__img { max-height: calc(100vh - 14rem); }
}