.code-block {
  position: relative;
  background: rgba(4, 19, 36, 0.6);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  padding: 18px 20px;
  margin-top: 14px;
  overflow-x: auto;
}
.code-block pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #e2f4ff;
  white-space: pre;
}
.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid var(--border-accent);
  color: var(--accent-cyan);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  cursor: pointer;
}
.api-card {
  padding: 18px 20px;
}
.api-card h4 {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}
.api-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.mcp-os-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 0 auto 28px;
  max-width: 420px;
}
.mcp-os-tab-btn {
  flex: 1;
  padding: 11px 20px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-accent);
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.mcp-os-tab-btn:hover {
  color: #f8fafc;
  background: rgba(56, 189, 248, 0.1);
  border-color: var(--accent-cyan);
}
.mcp-os-tab-btn.active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(14, 165, 233, 0.15));
  border-color: var(--accent-cyan);
  color: #f8fafc;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.3);
}
.sdk-os-panel {
  display: none;
}
.sdk-os-panel.active {
  display: block;
}