#pwaInstallButton {
  position: fixed;
  z-index: 11000;
  top: max(12px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, .75);
  border-radius: 999px;
  color: #fff;
  background: rgba(70, 61, 123, .94);
  box-shadow: 0 10px 28px rgba(50, 43, 91, .24);
  backdrop-filter: blur(14px);
  font: inherit;
  white-space: nowrap;
  cursor: pointer;
}
#pwaInstallButton strong { font-size: 14px; }
@media (display-mode: standalone) { #pwaInstallButton { display: none; } }