promptfoo--promptfoo/site/blog/mcp/components/MCPArchitectureVisualizer.module.css

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
  position: relative;
  overflow: visible;
}

.controls {
  text-align: center;
  margin-bottom: 4rem;
  padding-top: 1rem;
}

.toggleButton {
  background: var(--ifm-color-primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.2s ease;
}

.toggleButton:hover {
  background: var(--ifm-color-primary-darker);
}

.visualizer {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  position: relative;
  padding: 6rem 0 4rem;
  margin: 0 2rem;
}

.cardWrapper {
  flex: 1;
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.card {
  background: var(--ifm-background-surface-color);
  border: 1px solid var(--ifm-color-emphasis-200);
  border-radius: 12px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 250px;
  height: auto;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-color: var(--ifm-color-primary);
}

.expanded {
  height: auto;
  min-height: 400px;
}

.cardHeader {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.icon {
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background: var(--ifm-color-emphasis-100);
  border-radius: 8px;
}

.cardHeader h3 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--ifm-heading-color);
}

.description {
  color: var(--ifm-color-emphasis-700);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.expandedContent {
  margin-top: 1rem;
}

.details {
  padding-top: 1rem;
  border-top: 1px solid var(--ifm-color-emphasis-200);
}

.details p {
  margin-bottom: 1.5rem;
  color: var(--ifm-color-emphasis-700);
}

.details h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--ifm-heading-color);
}

.details ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.details li {
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
  color: var(--ifm-color-emphasis-700);
}

.details li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--ifm-color-primary);
}

.cardFooter {
  margin-top: auto;
  padding-top: 1rem;
  display: flex;
  justify-content: flex-end;
}

.learnMore {
  background: none;
  border: none;
  color: var(--ifm-color-primary);
  cursor: pointer;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.learnMore:hover {
  background: var(--ifm-color-primary-contrast-background);
}

.playButton {
  background: var(--ifm-color-emphasis-200);
  color: var(--ifm-color-emphasis-700);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.playButton:hover {
  background: var(--ifm-color-emphasis-300);
}

.playButton:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Flow animation styles */
.flowConnector {
  position: absolute;
  width: calc(100% + 2rem);
  left: calc(100% - 1rem);
  top: 125px;
  height: 2px;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flowConnector::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--ifm-color-primary);
  opacity: 0.3;
}

.flowMessage {
  position: absolute;
  background: var(--ifm-background-surface-color);
  border: 1px solid var(--ifm-color-primary);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  min-width: 200px;
  text-align: center;
  z-index: 10;
  transform: translateX(-50%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Message from host to itself */
.flowMessage[data-from='host'][data-to='host'] {
  left: 50%;
  top: -120px;
  transform: translateX(-50%);
  min-width: 240px;
  border-color: var(--ifm-color-emphasis-400);
}

.flowMessage[data-from='host'][data-to='host']::before {
  content: '';
  position: absolute;
  width: 2px;
  height: 30px;
  background: var(--ifm-color-emphasis-400);
  opacity: 0.5;
  left: 50%;
  transform: translateX(-50%);
  bottom: -30px;
}

.flowMessage.right {
  left: 30%;
  top: -120px;
}

.flowMessage.left {
  left: 70%;
  bottom: -120px;
  top: auto;
}

.flowMessage::before {
  content: '';
  position: absolute;
  width: 2px;
  height: 30px;
  background: var(--ifm-color-primary);
  opacity: 0.3;
  left: 50%;
  transform: translateX(-50%);
}

.flowMessage.right::before {
  bottom: -30px;
  top: auto;
}

.flowMessage.left::before {
  top: -30px;
  bottom: auto;
}

.flowMessage code {
  font-size: 0.85rem;
  color: var(--ifm-color-emphasis-900);
  background: none;
  padding: 0;
  display: block;
  margin-bottom: 0.5rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.flowDescription {
  font-size: 0.8rem;
  color: var(--ifm-color-emphasis-600);
  display: block;
}

/* Dark mode enhancements */
[data-theme='dark'] .card {
  background: var(--ifm-background-surface-color);
  border-color: var(--ifm-color-emphasis-300);
}

[data-theme='dark'] .card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme='dark'] .flowMessage {
  background: var(--ifm-background-surface-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Responsive design */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .visualizer {
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem 0;
    margin: 0;
  }

  .flowConnector {
    display: none;
  }

  .messageArea {
    min-height: 40px;
    border-left: 2px dashed var(--ifm-color-emphasis-300);
    margin-left: calc(50% - 1px);
    height: 30px;
    flex-grow: 0;
    width: 0;
    margin: -0.75rem 0;
  }

  .message {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    max-width: 70%;
  }

  .icon {
    font-size: 1.8rem;
  }

  .cardHeader h3 {
    font-size: 1.1rem;
  }

  .exampleButton {
    font-size: 0.8rem;
    padding: 0.25rem 0.6rem;
  }
}

.hostMessageContainer {
  position: absolute;
  top: 0;
  left: 2rem;
  width: calc((100% - 4rem - 4rem) / 3);
  display: flex;
  justify-content: center;
  z-index: 1;
}

.hostMessageContainer .flowMessage {
  position: relative;
  transform: none;
  left: auto;
  top: auto;
  min-width: 240px;
  border-color: var(--ifm-color-emphasis-400);
}

.hostMessageContainer .flowMessage::before {
  content: '';
  position: absolute;
  width: 2px;
  height: 40px;
  background: var(--ifm-color-emphasis-400);
  opacity: 0.5;
  left: 50%;
  transform: translateX(-50%);
  bottom: -40px;
}