.app-notice {
  position: fixed;
  z-index: 50;
  left: 50%;
  bottom: 94px;
  transform: translate(-50%, 20px);
  width: min(520px, calc(100% - 32px));
  padding: 15px 18px;
  border-radius: 14px;
  background: #10231a;
  color: white;
  box-shadow: 0 18px 45px rgba(8, 36, 25, .2);
  opacity: 0;
  pointer-events: none;
  transition: .25s;
}
.app-notice.show { opacity: 1; transform: translate(-50%, 0); }