/* ================================================================
   stylesFotosRecuerdo.css — Carrusel de Fotos UNASAM
   Fullscreen carousel con miniaturas, lightbox, responsive.
================================================================ */

/* ── Botón volver / cerrar ──────────────────────────────────── */
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,107,53,0.15);
  border: 2px solid #FF6B35;
  color: #FF8C5A;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: 0.5rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.btn-back:hover { background: #FF6B35; color: #fff; }

/* ── Slide principal: transición suave ──────────────────────── */
#fr-slide-img {
  transition: opacity 0.4s ease, transform 0.4s ease;
  cursor: zoom-in;
}

/* ── Miniaturas ─────────────────────────────────────────────── */
.fr-thumb {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid rgba(255,255,255,0.12);
  opacity: 0.5;
  cursor: pointer;
  transition: all 0.25s ease;
  padding: 0;
  background: rgba(255,255,255,0.05);
}
.fr-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.fr-thumb:hover {
  opacity: 0.85;
  border-color: rgba(255,140,90,0.5);
}
.fr-thumb.active {
  opacity: 1;
  border-color: #FF6B35;
  box-shadow: 0 0 12px rgba(255,107,53,0.4);
  transform: scale(1.1);
}

/* Ocultar scrollbar en miniaturas */
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.scrollbar-hide::-webkit-scrollbar { display: none; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 480px) {
  .fr-thumb {
    width: 38px;
    height: 38px;
    border-radius: 6px;
  }
}

@media (min-width: 768px) {
  .fr-thumb {
    width: 56px;
    height: 56px;
    border-radius: 10px;
  }
}