.pwa-install-fab {
  position: fixed;
  right: max(12px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 850;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--nexum, #1a2744);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 39, 68, 0.28);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pwa-install-fab:hover,
.pwa-install-fab:focus-visible {
  transform: scale(1.04);
  box-shadow: 0 6px 18px rgba(26, 39, 68, 0.34);
  outline: none;
}

.pwa-install-fab__icon {
  width: 22px;
  height: 22px;
}

.pwa-install-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  padding-bottom: max(16px, env(safe-area-inset-bottom));
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
}

.pwa-install-dialog {
  position: relative;
  width: 100%;
  max-width: 360px;
  background: #fff;
  border-radius: 16px;
  padding: 20px 18px 16px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.22);
  animation: pwa-install-slide-up 0.22s ease-out;
}

@keyframes pwa-install-slide-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pwa-install-dialog__close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: #f1f5f9;
  color: #64748b;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.pwa-install-dialog__header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
  padding-right: 28px;
}

.pwa-install-dialog__badge {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.pwa-install-dialog__title {
  margin: 0 0 4px;
  font-size: 1.05rem;
  color: var(--nexum, #1a2744);
}

.pwa-install-dialog__subtitle {
  margin: 0;
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.35;
}

.pwa-install-dialog__text {
  margin: 0 0 14px;
  font-size: 0.9rem;
  color: #334155;
  line-height: 1.45;
}

.pwa-install-steps {
  margin: 0 0 16px;
  padding-left: 1.15rem;
  font-size: 0.88rem;
  color: #334155;
  line-height: 1.45;
}

.pwa-install-steps li + li {
  margin-top: 8px;
}

.pwa-install-steps__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 4px;
  background: #e8edf5;
  font-size: 0.75rem;
  vertical-align: middle;
}

.pwa-install-dialog__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pwa-install-dialog__btn {
  width: 100%;
  min-height: 42px;
  border-radius: 10px;
  border: none;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
}

.pwa-install-dialog__btn--primary {
  background: var(--kaju, #e85d2a);
  color: #fff;
}

.pwa-install-dialog__btn--ghost {
  background: transparent;
  color: #64748b;
}

@media (min-width: 480px) {
  .pwa-install-overlay {
    align-items: center;
  }
}