:root{--focus:#60a5fa}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
@media (prefers-reduced-motion:no-preference){
  .tab,.card,button{transition:all .2s ease}
  button:hover{filter:brightness(1.08)}
}
.code{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;}