/* Galerie-Seite */

.page-hero {
  padding-top: calc(var(--space-16) + 3rem);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}

.page-hero .lede {
  margin-top: var(--space-4);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.filter-btn {
  padding: 0.6em 1.3em;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}

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

.filter-btn.is-active {
  background: var(--gradient-brand);
  border-color: transparent;
  color: #fff;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.gallery-item {
  margin: 0;
}

.gallery-item__btn {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.gallery-item__btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.gallery-item__btn:hover img {
  transform: scale(1.06);
}

.gallery-item__badge {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-3);
  background: rgba(10, 10, 11, 0.75);
  backdrop-filter: blur(6px);
}

.gallery-item {
  transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out);
}

.gallery-item.is-fading {
  opacity: 0;
  transform: scale(0.94);
  pointer-events: none;
}

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

.gallery-empty {
  text-align: center;
  padding: var(--space-10) 0;
  color: var(--color-text-faint);
}

@media (max-width: 980px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }
}

/* --- Lightbox --- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), visibility 0s var(--dur-base);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--dur-base) var(--ease-out), visibility 0s;
}

.lightbox[hidden] {
  display: none;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 6, 7, 0.92);
  backdrop-filter: blur(6px);
}

.lightbox__dialog {
  position: relative;
  z-index: 1;
  max-width: min(92vw, 1100px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.94) translateY(8px);
  transition: transform var(--dur-base) var(--ease-out);
}

.lightbox.is-open .lightbox__dialog {
  transform: scale(1) translateY(0);
}

.lightbox__img {
  max-width: 100%;
  max-height: 78vh;
  border-radius: var(--radius-md);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.7);
  transition: opacity 150ms ease;
}

.lightbox__img.is-swapping {
  opacity: 0;
}

.lightbox__caption {
  margin-top: var(--space-4);
  color: var(--color-text);
  font-weight: 600;
  text-align: center;
}

.lightbox__close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.16);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  translate: 0 -50%;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  z-index: 2;
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.16);
}

.lightbox__nav--prev {
  left: -10px;
}

.lightbox__nav--next {
  right: -10px;
}

@media (max-width: 700px) {
  .lightbox__nav--prev {
    left: 4px;
  }
  .lightbox__nav--next {
    right: 4px;
  }
  .lightbox__close {
    top: 4px;
    right: 4px;
  }
}