.grafico-secao {
  background: rgba(15, 23, 42, 0.86);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 24px;
  padding: 18px;
  margin-bottom: 22px;
}

.grafico-topo {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.grafico-topo h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 950;
  letter-spacing: -0.02em;
}

.periodo-botoes {
  display: flex;
  gap: 6px;
}

.periodo-btn {
  appearance: none;
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid rgba(148, 163, 184, 0.28);
  color: #cbd5e1;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.8rem;
  font-weight: 850;
  cursor: pointer;
}

.periodo-btn.active {
  background: #bef264;
  border-color: #bef264;
  color: #06110a;
}