/* Module-specific styles for Exactly-Once article */
.interactive-demo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  margin: 2rem 0;
}

@media (min-width: 800px) {
  .interactive-demo {
    grid-template-columns: 1.5fr 1fr;
  }
}

.step-diagram .step {
  padding: 1rem;
  border-left: 4px solid var(--border-color);
  opacity: 0.4;
  transition:
    opacity 0.3s,
    background-color 0.3s;
}

.step-diagram .step.active {
  opacity: 1;
  border-left-color: var(--accent-primary);
  background-color: var(--bg-primary);
}

.step-diagram .step.completed {
  opacity: 0.6;
  border-left-color: var(--text-muted);
}

.diagram-visual-panel {
  background: var(--bg-primary);
  border-radius: 0.5rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 200px;
}

.diagram-visual-panel .icon {
  font-size: 3rem;
}

.diagram-visual-actions {
  display: grid;
  gap: 0.75rem;
  width: 100%;
  margin-top: 1rem;
}

.code-comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 2rem 0;
}

@media (min-width: 768px) {
  .code-comparison {
    grid-template-columns: 1fr 1fr;
  }
}

.code-comparison h4 {
  margin-top: 0;
  text-align: center;
}