.rs-related-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0;
}
.rs-gallery-item {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100px;
  height: 100px;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}
.rs-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Estilos para el botón "Me interesa" */

/* Wrapper */
.custom-book-button-wrapper {
  margin-top: 20px;
}

/* Botón principal */
.custom-book-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background-color: #e7a9a0;
  color: #ffffff !important;
  text-decoration: none !important;
  border-radius: 99px;
  font-weight: 700;
  line-height: 1;
  border: 0;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.12s ease;
  -webkit-tap-highlight-color: transparent; /* mobile */
}

.custom-book-button-icon {
  flex-shrink: 0;
}

/* Hover / focus / active */
.custom-book-button:hover,
.custom-book-button:focus {
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
  opacity: 0.98;
  outline: none;
}

/* Focus visible para accesibilidad */
.custom-book-button:focus-visible {
  box-shadow: 0 0 0 3px rgba(231, 169, 160, 0.25);
  border-radius: 99px;
}

/* Estado activo (presionado) */
.custom-book-button:active {
  transform: translateY(0);
  box-shadow: none;
}

/* Variante responsive: botón full width en pantallas pequeñas */
@media (max-width: 480px) {
  .custom-book-button {
    display: inline-flex;
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}