.btn-accesibilidad-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1050;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background-color: var(--bg-body);
  color: var(--text-primary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-strong);
  cursor: pointer;
  transition: transform 0.2s ease;
}
.btn-accesibilidad-float:hover {
  transform: scale(1.08);
}
.bev-categorias-titulo {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 900;
    letter-spacing: 0.4em;
    color: var(--text-primary);
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-soft);
}
/* Botones del panel */
.bev-btn-accesibilidad {
  text-align: left;
  border: 1px solid var(--pr-gray-200);
  background: transparent;
  color: var(--pr-gray-900);
  padding: 0.6rem 1rem;
}

.bev-btn-restablecer {
  border-color: var(--status-error-text);
  color: var(--status-error-text);
}

/* Modo escala de grises (global) */
.modo-grises {
  filter: grayscale(100%);
}

/* Texto accesible (aumenta tamaño base) */
.texto-accesible {
  font-size: 120%;
}
.libros-sidebar-left {
    position: static;
    width: 100%;
    background-color: var(--bg-surface-alt);
}
@media (max-width: 576px) {
  .btn-accesibilidad-float {
    bottom: 1rem;
    right: 1rem;
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }
}