.pwa-install-banner {
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  z-index: 10040;
  max-width: 420px;
  margin: 0 auto;
  background: var(--ui-surface, #fff);
  color: var(--ui-text, #1e293b);
  border: 1px solid var(--ui-border, #e2e8f0);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.18);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: inherit;
  animation: pwaSlideUp 0.25s ease-out;
}

@keyframes pwaSlideUp {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.pwa-install-banner-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pwa-install-banner-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  flex-shrink: 0;
}

.pwa-install-banner-text h4 {
  margin: 0 0 4px;
  font-size: 0.95rem;
}

.pwa-install-banner-text p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ui-text-muted, #64748b);
  line-height: 1.5;
}

.pwa-install-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.pwa-install-btn {
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-family: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}

.pwa-install-btn-primary {
  background: var(--ui-accent, #dc3545);
  color: #fff;
}

.pwa-install-btn-ghost {
  background: transparent;
  color: var(--ui-text-muted, #64748b);
}

.pwa-install-overlay {
  position: fixed;
  inset: 0;
  z-index: 10050;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.pwa-install-modal {
  background: var(--ui-surface, #fff);
  color: var(--ui-text, #1e293b);
  border-radius: 12px;
  width: min(400px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  padding: 18px;
  border: 1px solid var(--ui-border, #e2e8f0);
}

.pwa-install-modal h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.pwa-install-steps {
  margin: 0 0 16px;
  padding-right: 18px;
  line-height: 1.7;
  font-size: 0.88rem;
}

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

.pwa-install-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

@media (min-width: 768px) {
  .pwa-install-banner {
    right: 24px;
    left: auto;
    margin: 0;
  }
}