@keyframes appear-then-fade {
  0%,100% { opacity: 0; }
  5%,60%  { opacity: 1; }
}

.flash {
  display: flex;
  inset-block-start: 1rem;
  inset-inline-start: 50%;
  justify-content: center;
  position: fixed;
  text-align: center;
  z-index: 6;
  transform: translate(-50%);

  [data-turbo-preview] & {
    display: none;
  }
}

.flash__inner {
  align-items: center;
  animation: appear-then-fade 5s 300ms both;
  background: black;
  border-radius: 2em;
  border: 2px solid #34d399;
  color: white;
  display: flex;
  justify-content: center;
  margin: auto;
  padding: 0.5rem 1rem;
}