.pwa-install-banner {
  position: fixed;
  left: 16px; right: 16px; bottom: 16px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px 16px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.18);
  z-index: 8000;
  transform: translateY(120%);
  transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
}
.pwa-install-banner.is-visible { transform: translateY(0); }

.pwa-install-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 12px;
  background: #eef2ff;
  display: flex; align-items: center; justify-content: center;
}
.pwa-install-text { flex: 1; min-width: 0; }
.pwa-install-text strong { display: block; font-size: 14px; color: #0f172a; }
.pwa-install-text span { display: block; font-size: 12px; color: #64748b; margin-top: 2px; line-height: 1.4; }

.pwa-install-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.pwa-install-close {
  background: transparent; border: 0;
  color: #94a3b8; font-size: 12px;
  cursor: pointer; padding: 6px 8px; border-radius: 6px;
}
.pwa-install-close:hover { color: #64748b; background: #f1f5f9; }
.pwa-install-btn {
  background: #4f46e5; color: #fff;
  border: 0; padding: 8px 14px;
  border-radius: 8px; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background 150ms;
}
.pwa-install-btn:hover { background: #4338ca; }

@media (min-width: 640px) {
  .pwa-install-banner {
    left: auto; right: 20px; bottom: 20px;
    max-width: 480px;
  }
}

.pwa-ios-modal {
  position: fixed; inset: 0;
  z-index: 8500;
  opacity: 0;
  transition: opacity 200ms;
}
.pwa-ios-modal.is-visible { opacity: 1; }
.pwa-ios-backdrop {
  position: absolute; inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}
.pwa-ios-panel {
  position: absolute; left: 50%; bottom: 50%;
  transform: translate(-50%, 50%);
  width: 360px; max-width: calc(100vw - 32px);
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 24px 48px -16px rgba(15, 23, 42, 0.4);
}
.pwa-ios-close {
  position: absolute; top: 8px; right: 12px;
  background: transparent; border: 0;
  font-size: 24px; color: #94a3b8; cursor: pointer;
  line-height: 1; padding: 4px 8px;
}
.pwa-ios-close:hover { color: #475569; }
.pwa-ios-icon {
  width: 64px; height: 64px; margin: 0 auto 12px;
  background: #eef2ff;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
}
.pwa-ios-panel h3 { margin: 0 0 6px; font-size: 18px; color: #0f172a; }
.pwa-ios-panel p { margin: 0 0 12px; font-size: 13px; color: #64748b; line-height: 1.5; }
.pwa-ios-panel ol {
  margin: 0 0 18px; padding: 0 0 0 24px;
  text-align: left;
  font-size: 13px; color: #0f172a; line-height: 1.7;
}
.pwa-ios-panel ol li { margin-bottom: 6px; }
.pwa-ios-ok {
  background: #4f46e5; color: #fff;
  border: 0; padding: 10px 24px;
  border-radius: 10px; font-size: 14px; font-weight: 600;
  cursor: pointer; width: 100%;
}
.pwa-ios-ok:hover { background: #4338ca; }

@media (prefers-reduced-motion: reduce) {
  .pwa-install-banner, .pwa-ios-modal { transition: none; }
}