.pwa-update-notice {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 12000;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  width: min(680px, calc(100vw - 36px));
  padding: 16px;
  border: 1px solid rgba(183, 199, 143, 0.72);
  border-radius: 6px;
  background: #11110f;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.46);
  color: #f2efe7;
}

.pwa-update-notice[hidden] { display: none !important; }

.pwa-update-mark {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: invert(88%) sepia(15%) saturate(528%) hue-rotate(31deg) brightness(92%);
}

.pwa-update-copy {
  min-width: 0;
}

.pwa-update-copy strong {
  display: block;
  margin: 0 0 4px;
  color: #f2efe7;
  font-size: 15px;
  font-weight: 720;
  line-height: 1.25;
}

.pwa-update-copy span {
  display: block;
  color: #aaa79d;
  font-size: 12px;
  line-height: 1.45;
}

.pwa-update-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.pwa-update-actions button {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 4px;
  font: inherit;
  font-size: 12px;
  font-weight: 720;
  cursor: pointer;
}

.pwa-update-apply {
  border: 1px solid #dce5c7;
  background: #dce5c7;
  color: #11110f;
}

.pwa-update-dismiss {
  border: 1px solid rgba(242, 239, 231, 0.2);
  background: transparent;
  color: #d4d0c6;
}

.pwa-update-actions button:focus-visible {
  outline: 2px solid #f2efe7;
  outline-offset: 3px;
}

.pwa-update-actions button:disabled {
  cursor: wait;
  opacity: 0.7;
}

@media (max-width: 640px) {
  .pwa-update-notice {
    right: max(10px, env(safe-area-inset-right));
    bottom: max(10px, env(safe-area-inset-bottom));
    left: max(10px, env(safe-area-inset-left));
    grid-template-columns: 36px minmax(0, 1fr);
    width: auto;
    gap: 12px;
    padding: 14px;
  }

  .pwa-update-mark {
    width: 36px;
    height: 36px;
  }

  .pwa-update-actions {
    grid-column: 1 / -1;
  }

  .pwa-update-actions button {
    flex: 1 1 0;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .pwa-update-notice:not([hidden]) {
    animation: pwa-update-enter 180ms ease-out both;
  }

  @keyframes pwa-update-enter {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }
}