.pwa-update-prompt {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: min(420px, calc(100vw - 32px));
  padding: 12px 14px;
  color: #111827;
  background: #ffffff;
  border: 1px solid rgba(17, 24, 39, 0.14);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.2);
  font-size: 14px;
}

.pwa-update-prompt span {
  line-height: 1.4;
}

.pwa-update-prompt button {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 14px;
  color: #ffffff;
  background: #111827;
  border: 0;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
}

@media (max-width: 640px) {
  .pwa-update-prompt {
    right: 12px;
    bottom: 12px;
    left: 12px;
    max-width: none;
    justify-content: space-between;
  }
}