.install-help[hidden], .install-help button[hidden] { display: none !important; }
.install-help {
  position: fixed;
  z-index: 100000;
  right: 16px;
  bottom: max(16px, env(safe-area-inset-bottom));
  left: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 500px;
  margin-inline: auto;
  padding: 13px 14px;
  border: 1px solid #a5d6d0;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 12px 36px rgb(15 23 42 / 18%);
  color: #17323d;
  font: 14px/1.4 system-ui, sans-serif;
}
.install-help span { flex: 1; }
.install-help button {
  flex-shrink: 0;
  padding: 8px 10px;
  border: 0;
  border-radius: 8px;
  background: #0f766e;
  color: #ffffff;
  font: 600 13px/1.2 system-ui, sans-serif;
  cursor: pointer;
}
.install-help #install-dismiss { background: transparent; color: #17323d; font-size: 22px; }
.install-help button:focus-visible { outline: 3px solid #177a70; outline-offset: 2px; }
@media (display-mode: standalone), (display-mode: fullscreen) { .install-help { display: none !important; } }