.nand-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  max-width: 480px;
  margin: 12px 0;
}

.nand-block {
  aspect-ratio: 1;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.75rem;
  color: var(--fg);
  background: var(--bg);
}

.nand-block.retired {
  border-color: var(--mask);
  color: var(--mask);
  opacity: 0.6;
}