/* ═══════════════════════════════════════════════════════════════════
   Bioladen Galerie v2 — Grid + Lightbox
   Steuerung über CSS-Custom-Properties:
     --bio-cols   (Spalten)
     --bio-gap    (Abstand in px)
     --bio-ratio  (Seitenverhältnis)
     --bio-radius (Ecken-Radius)
   ═══════════════════════════════════════════════════════════════════ */

/* ── Grid ─────────────────────────────────────────────────────────── */
.bio-galerie {
  display: grid;
  grid-template-columns: repeat(var(--bio-cols, 3), 1fr);
  gap: var(--bio-gap, 12px);
  margin-block: 2rem;
}

@media (max-width: 860px) {
  .bio-galerie {
    grid-template-columns: repeat(min(var(--bio-cols, 3), 2), 1fr);
  }
}
@media (max-width: 480px) {
  .bio-galerie {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Kachel ───────────────────────────────────────────────────────── */
.bio-galerie__item {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: var(--bio-ratio, 1/1);
  overflow: hidden;
  border: none;
  padding: 0;
  cursor: zoom-in;
  background: #e6e3d8;
  border-radius: var(--bio-radius, 8px);
  transition: box-shadow 0.25s ease;
}

.bio-galerie__item:hover {
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
}

.bio-galerie__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.38s ease, filter 0.38s ease;
}

.bio-galerie__item:hover img,
.bio-galerie__item:focus-visible img {
  transform: scale(1.07);
  filter: brightness(0.78);
}

.bio-galerie__item:focus-visible {
  outline: 3px solid #7a6d5e;
  outline-offset: 2px;
}

/* ── Zoom-Icon ────────────────────────────────────────────────────── */
.bio-galerie__zoom {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0;
  transition: opacity 0.22s ease;
  pointer-events: none;
  filter: drop-shadow(0 1px 4px rgba(0,0,0,0.4));
}

.bio-galerie__item:hover .bio-galerie__zoom,
.bio-galerie__item:focus-visible .bio-galerie__zoom {
  opacity: 1;
}

/* ── Lightbox-Overlay ─────────────────────────────────────────────── */
.bio-lb {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bio-lb[hidden] { display: none; }

.bio-lb__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(16, 13, 10, 0.93);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  cursor: zoom-out;
}

/* ── Bühne ────────────────────────────────────────────────────────── */
.bio-lb__stage {
  position: relative;
  z-index: 1;
  max-width: min(90vw, 1200px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.bio-lb__img {
  display: block;
  max-width: 100%;
  max-height: 84vh;
  object-fit: contain;
  border-radius: 5px;
  box-shadow: 0 28px 90px rgba(0,0,0,0.6);
}

.bio-lb__caption {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.875rem;
  text-align: center;
  margin: 0;
  max-width: 640px;
  line-height: 1.5;
}

/* ── Zähler ───────────────────────────────────────────────────────── */
.bio-lb__counter {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  pointer-events: none;
  white-space: nowrap;
}

/* ── Buttons (gemeinsam) ──────────────────────────────────────────── */
.bio-lb__close,
.bio-lb__prev,
.bio-lb__next {
  position: fixed;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.10);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.bio-lb__close:hover,
.bio-lb__prev:hover,
.bio-lb__next:hover {
  background: rgba(255, 255, 255, 0.22);
}

.bio-lb__close:focus-visible,
.bio-lb__prev:focus-visible,
.bio-lb__next:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.55);
  outline-offset: 2px;
}

/* ── Positionen ───────────────────────────────────────────────────── */
.bio-lb__close {
  top: 1.25rem;
  right: 1.25rem;
}

.bio-lb__prev {
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
}
.bio-lb__prev:hover { transform: translateY(-50%) translateX(-3px); }

.bio-lb__next {
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
}
.bio-lb__next:hover { transform: translateY(-50%) translateX(3px); }

@media (max-width: 600px) {
  .bio-lb__prev  { left: 0.4rem; }
  .bio-lb__next  { right: 0.4rem; }
  .bio-lb__close { top: 0.6rem; right: 0.6rem; }
  .bio-lb__close,
  .bio-lb__prev,
  .bio-lb__next  { width: 42px; height: 42px; }
}