.omega-pwa {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 1060;
  display: grid;
  gap: 10px;
  max-width: min(420px, calc(100vw - 32px));
  color: #172554;
  font: 14px/1.5 system-ui, sans-serif;
}
.omega-pwa [hidden] { display: none !important; }
.omega-pwa-notice, .omega-pwa-install {
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 6px 24px #1725541a;
  padding: 14px;
}
.omega-pwa-notice strong, .omega-pwa-notice span { display: block; }
.omega-pwa-notice span { margin-top: 3px; color: #475569; }
.omega-pwa-notice button { margin-top: 10px; }
.omega-pwa-install { display: flex; align-items: center; gap: 6px; padding: 6px; }
.omega-pwa button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  background: #1d4ed8;
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.omega-pwa button:hover { background: #1e40af; }
.omega-pwa button:focus-visible, .pwa-install-help summary:focus-visible { outline: 3px solid #0ea5e9; outline-offset: 3px; }
.omega-pwa button:disabled { opacity: .65; cursor: wait; }
.omega-pwa .omega-pwa-dismiss { min-width: 44px; background: transparent; color: #475569; font-size: 22px; }
.pwa-install-help summary { cursor: pointer; color: #1d4ed8; font-size: 14px; }
@media print { .omega-pwa, .pwa-install-help { display: none; } }