.pwa-install {
  position: fixed;
  left: max(16px, env(safe-area-inset-left));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 2147483000;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  width: min(560px, calc(100vw - 32px));
  padding: 14px;
  color: #f7fbff;
  background: linear-gradient(135deg, rgba(8, 23, 53, 0.97), rgba(3, 7, 18, 0.96));
  border: 1px solid rgba(121, 218, 255, 0.28);
  border-radius: 18px;
  box-shadow: 0 22px 64px rgba(0, 5, 24, 0.48), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px) saturate(135%);
  -webkit-backdrop-filter: blur(20px) saturate(135%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  animation: pwa-install-enter 180ms ease-out both;
}

.pwa-install[hidden] {
  display: none;
}

.pwa-install__icon {
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background: #07142f;
  box-shadow: 0 8px 24px rgba(0, 3, 14, 0.42);
}

.pwa-install__copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.pwa-install__copy strong {
  color: #ffffff;
  font-size: 0.94rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.pwa-install__copy span {
  color: rgba(229, 241, 255, 0.76);
  font-size: 0.78rem;
  line-height: 1.4;
}

.pwa-install__action,
.pwa-install__close {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
}

.pwa-install__action {
  min-height: 38px;
  padding: 0 16px;
  border-radius: 11px;
  color: #03101f;
  background: linear-gradient(135deg, #eafcff, #51d8ff);
  box-shadow: 0 8px 22px rgba(43, 205, 255, 0.22);
  font-size: 0.82rem;
  font-weight: 800;
}

.pwa-install__action:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.pwa-install__action:focus-visible,
.pwa-install__close:focus-visible {
  outline: 3px solid rgba(92, 221, 255, 0.72);
  outline-offset: 3px;
}

.pwa-install__close {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: rgba(239, 248, 255, 0.76);
  background: rgba(255, 255, 255, 0.06);
  font-size: 1.3rem;
  line-height: 1;
}

.pwa-install__close:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.11);
}

@keyframes pwa-install-enter {
  from { opacity: 0; transform: translateY(10px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 640px) {
  .pwa-install {
    right: max(12px, env(safe-area-inset-right));
    left: max(12px, env(safe-area-inset-left));
    bottom: max(12px, env(safe-area-inset-bottom));
    width: auto;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    gap: 10px;
    padding: 12px;
    border-radius: 16px;
  }

  .pwa-install__icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }

  .pwa-install__action {
    grid-column: 2;
    justify-self: start;
    min-height: 34px;
    padding: 0 14px;
  }

  .pwa-install__close {
    grid-column: 3;
    grid-row: 1;
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pwa-install {
    animation: none;
  }

  .pwa-install__action:hover {
    transform: none;
  }
}