promptfoo--promptfoo/site/blog/mcp/styles/MCPConnectionSimulator.module.css

.container {
  background-color: var(--ifm-card-background-color);
  border-radius: 16px;
  padding: 2rem 2rem 1.5rem;
  margin: 2rem 0;
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.05),
    0 10px 15px rgba(0, 0, 0, 0.1);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.title {
  font-size: 1.75rem;
  font-weight: 600;
  margin: 0;
  color: var(--ifm-heading-color);
  letter-spacing: -0.02em;
}

.controls {
  display: flex;
  gap: 1rem;
}

.button {
  padding: 0.75rem 1.5rem;
  background-color: #4a90e2;
  color: white;
  border: none;
  border-radius: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
  background-color: #357abd;
}

.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.resetButton {
  padding: 0.75rem 1.5rem;
  background-color: #ff6b6b;
  color: white;
  border: none;
  border-radius: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.resetButton:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
  background-color: #ff5252;
}

.simulator {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 3rem;
  align-items: start;
  position: relative;
  padding: 1rem;
}

.client,
.server {
  background-color: var(--ifm-background-surface-color);
  border: 2px solid var(--ifm-color-emphasis-200);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
}

.componentHeader {
  background-color: var(--ifm-background-color);
  padding: 1.25rem;
  font-weight: 600;
  border-bottom: 2px solid var(--ifm-color-emphasis-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
}

.statusIcon {
  font-size: 1rem;
  margin-left: 0.5rem;
}

.connecting .statusIcon {
  animation: spin 1.5s linear infinite;
}

.componentBody {
  padding: 1.25rem;
}

.status {
  font-size: 1rem;
  color: var(--ifm-color-emphasis-700);
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tooltip {
  position: absolute;
  bottom: calc(100% + 0.75rem);
  left: 50%;
  transform: translateX(-50%);
  background-color: #2d3748;
  color: white;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  white-space: nowrap;
  z-index: 10;
  animation: fadeIn 0.2s ease-out;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-top-color: #2d3748;
}

.messageFlow {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem;
  min-height: 250px;
  position: relative;
  width: 300px;
}

.connectionLine {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background-color: var(--ifm-color-emphasis-200);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.connectionLine.active {
  opacity: 1;
  background: linear-gradient(
    to bottom,
    rgba(74, 144, 226, 0.2) 0%,
    rgba(74, 144, 226, 0.6) 50%,
    rgba(74, 144, 226, 0.2) 100%
  );
  box-shadow: 0 0 10px rgba(74, 144, 226, 0.2);
}

.message {
  max-width: 85%;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  animation: slideIn 0.3s ease-out;
  position: relative;
  z-index: 1;
  font-size: 0.95rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.message::before {
  content: attr(data-phase);
  position: absolute;
  top: -1.25rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8rem;
  color: var(--ifm-color-emphasis-600);
  background: var(--ifm-background-surface-color);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  opacity: 0.8;
}

.client-to-server {
  align-self: flex-start;
  background-color: #f8faff;
  border: 1px solid #e1e8ff;
  transform-origin: left center;
}

.server-to-client {
  align-self: flex-end;
  background-color: #f8fff9;
  border: 1px solid #e1f5e4;
  transform-origin: right center;
}

.messageContent {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.messageType {
  font-size: 0.75rem;
  font-weight: 600;
  color: #718096;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.messageText {
  font-family: 'SF Mono', Menlo, Monaco, Consolas, monospace;
  font-size: 0.9rem;
  word-break: break-word;
  opacity: 0;
  animation: typeWriter 0.5s ease-out forwards;
  line-height: 1.5;
  color: var(--ifm-color-emphasis-900);
  background: white;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--ifm-color-emphasis-200);
}

.request .messageType {
  color: #4a90e2;
}

.response .messageType {
  color: #48bb78;
}

.notification .messageType {
  color: #ecc94b;
}

/* Status-specific styles */
.idle {
  opacity: 0.9;
}

.connecting {
  border-color: #ecc94b;
  box-shadow: 0 0 0 1px #ecc94b;
}

.connected {
  border-color: #48bb78;
  box-shadow: 0 0 0 1px #48bb78;
}

.error {
  border-color: #ff6b6b;
  box-shadow: 0 0 0 1px #ff6b6b;
}

.disconnecting {
  border-color: #ff6b6b;
  animation: pulse 2s infinite;
}

.disconnecting .statusIcon {
  color: #ff6b6b;
  animation: spin 2s linear infinite;
}

/* Animations */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes typeWriter {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
  100% {
    opacity: 1;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translate(-50%, 5px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* Dark mode adjustments */
html[data-theme='dark'] .client,
html[data-theme='dark'] .server {
  background-color: #1a202c;
  border-color: #2d3748;
}

html[data-theme='dark'] .componentHeader {
  background-color: #2d3748;
  border-color: #4a5568;
}

html[data-theme='dark'] .client-to-server {
  background-color: rgba(74, 144, 226, 0.05);
  border-color: rgba(74, 144, 226, 0.15);
}

html[data-theme='dark'] .server-to-client {
  background-color: rgba(72, 187, 120, 0.05);
  border-color: rgba(72, 187, 120, 0.15);
}

html[data-theme='dark'] .messageText {
  background-color: var(--ifm-background-surface-color);
  color: var(--ifm-color-emphasis-900);
  border-color: var(--ifm-color-emphasis-300);
}

html[data-theme='dark'] .tooltip {
  background-color: #4a5568;
}

html[data-theme='dark'] .tooltip::after {
  border-top-color: #4a5568;
}

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

  .simulator {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .messageFlow {
    order: -1;
    width: 100%;
  }

  .message {
    max-width: 90%;
  }

  .controls {
    flex-direction: column;
    gap: 0.75rem;
  }

  .button,
  .resetButton {
    width: 100%;
  }

  .connectionLine {
    display: none;
  }

  .title {
    font-size: 1.5rem;
  }

  .footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
  }
}

.footer {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ifm-color-emphasis-200);
}