.is-pwa-update-notice {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  left: max(18px, env(safe-area-inset-left));
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(680px, calc(100vw - 36px));
  margin-left: auto;
  padding: 16px 18px;
  color: #f8fffb;
  background: #153f33;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 16px;
  box-shadow: 0 18px 55px rgba(10, 32, 25, .28);
}

.is-pwa-update-notice[hidden] { display: none !important; }
.is-pwa-update-copy { display: grid; gap: 4px; min-width: 0; }
.is-pwa-update-copy strong { font-size: 15px; }
.is-pwa-update-copy span { color: #d9eee6; font-size: 12px; line-height: 1.5; overflow-wrap: anywhere; }
.is-pwa-update-actions { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.is-pwa-update-actions button { min-height: 38px; padding: 8px 12px; border-radius: 9px; font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; }
.is-pwa-update-later { color: #e4f4ed; background: transparent; border: 1px solid rgba(255, 255, 255, .35); }
.is-pwa-update-apply { color: #0a4e39; background: #f4fff9; border: 1px solid #f4fff9; }
.is-pwa-update-apply:disabled { opacity: .65; cursor: wait; }

@media (max-width: 620px) {
  .is-pwa-update-notice { align-items: stretch; flex-direction: column; gap: 12px; padding: 15px; }
  .is-pwa-update-actions { display: grid; grid-template-columns: 1fr 1.35fr; }
  .is-pwa-update-actions button { min-height: 44px; }
}

@media (prefers-reduced-motion: no-preference) {
  .is-pwa-update-notice:not([hidden]) { animation: is-pwa-update-in .2s ease-out; }
  @keyframes is-pwa-update-in { from { opacity: 0; transform: translateY(10px); } }
}