/* Botão de ajuda: «?» em círculo; cor e negrito só em hover/foco (DESIGN-SYSTEM-SUPERADMIN §5). */
.hb-raiz {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.hb-botao {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid var(--access-border);
  border-radius: 50%;
  background: transparent;
  color: var(--access-muted);
  font: 400 13px/1 var(--font-mono);
  cursor: help;
}

.hb-botao:hover,
.hb-botao:focus-visible,
.hb-botao[aria-expanded="true"] {
  border-width: 2px;
  border-color: var(--access-context);
  color: var(--access-context);
  font-weight: 800;
  outline: none;
}

.hb-painel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  width: max-content;
  max-width: min(360px, 80vw);
  padding: 10px 12px;
  border: 1px solid var(--access-border);
  border-radius: 8px;
  background: var(--access-panel);
  color: var(--access-text);
  font-size: 13px;
  line-height: 1.55;
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.18);
}

.hb-painel[hidden] {
  display: none;
}