/* Loading brutalista: quadrado preto girando + texto piscando */

.loading {
  position: fixed;
  top: var(--altura-topo);
  inset-inline: 0;
  bottom: 0;
  z-index: 55;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--amarelo);
  background-image:
    repeating-linear-gradient(45deg, transparent 0 18px, rgba(17, 17, 17, 0.08) 18px 19px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.loading.visivel { opacity: 1; pointer-events: auto; }

.loading-caixa {
  display: grid;
  justify-items: center;
  gap: 1.2rem;
  padding: 2rem 2.5rem;
  background: var(--amarelo);
  border: 4px solid var(--preto);
  border-radius: var(--raio);
  box-shadow: var(--sombra-dura-grande);
}

.spinner {
  width: 52px; height: 52px;
  background: var(--preto);
  border: 4px solid var(--amarelo);
  border-radius: var(--raio);
  animation: girar-quadrado 0.8s linear infinite;
}

@keyframes girar-quadrado {
  to { transform: rotate(360deg); }
}

.loading-texto {
  font-family: var(--fonte-titulo);
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--preto);
  letter-spacing: 0.02em;
  animation: piscar-texto 0.8s steps(2) infinite;
}

@keyframes piscar-texto {
  50% { opacity: 0.3; }
}