.pwa-install-banner {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  z-index: 21;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: var(--space-3);
  width: min(520px, calc(100vw - 48px));
  padding: var(--space-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

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

.pwa-install-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
}

.pwa-install-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.pwa-install-copy strong {
  font-size: var(--text-base);
}

.pwa-install-copy span {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-snug);
}

.pwa-install-action,
.pwa-install-dismiss {
  min-width: 44px;
  min-height: 44px;
  border-radius: var(--radius-lg);
  cursor: pointer;
}

.pwa-install-action {
  padding: 0 var(--space-4);
  border: 0;
  background: var(--brand-primary);
  color: white;
  font-weight: var(--font-semibold);
}

.pwa-install-action:hover {
  background: var(--brand-primary-hover);
}

.pwa-install-dismiss {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font-size: 24px;
  line-height: 1;
}

@media (max-width: 768px) {
  .pwa-install-banner {
    right: var(--space-3);
    bottom: 88px;
    width: calc(100vw - 24px);
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .pwa-install-action {
    grid-column: 2;
    justify-self: start;
  }

  .pwa-install-dismiss {
    grid-column: 3;
    grid-row: 1 / span 2;
  }
}