.nn-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.nn-diff-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.nn-diff-btn {
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 999px;
  padding: 6px 16px;
  font-weight: 800;
  font-size: 0.85rem;
  cursor: pointer;
}
.nn-diff-btn[aria-pressed="true"] {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}

.nn-canvas {
  max-width: 100%;
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 3px var(--color-border);
  background: linear-gradient(180deg,#1a2130,#2b3550);
  cursor: pointer;
  touch-action: none;
}

.nn-typed-hint {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  text-align: center;
}
.nn-typed-hint strong { color: var(--color-primary-dark); }

@media (max-width: 480px) {
  .nn-diff-btn { font-size: 0.78rem; padding: 5px 12px; }
}