[data-pwa-install-banner] {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #111;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  font-family: inherit;
}
[data-pwa-install-banner][hidden] { display: none; }
[data-pwa-install-banner] > div { flex: 1; display: flex; flex-direction: column; gap: 2px; }
[data-pwa-install-banner] strong { font-size: 14px; }
[data-pwa-install-banner] span { font-size: 12px; opacity: 0.75; }
[data-pwa-install-banner] [data-pwa-install-close] {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 20px;
  line-height: 1;
  padding: 4px 6px;
  cursor: pointer;
  opacity: 0.7;
}
[data-pwa-install-banner] [data-pwa-install-close]:hover { opacity: 1; }