#app-install-banner {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: #4F46E5;
  color: white;
  padding: 12px 16px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

#app-install-banner .banner-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 600px;
  margin: 0 auto;
}

#app-install-banner .banner-text {
  flex: 1;
}

#app-install-banner .banner-title {
  font-weight: 600;
  margin-bottom: 2px;
}

#app-install-banner .banner-subtitle {
  opacity: 0.9;
  font-size: 12px;
}

#app-install-banner .banner-install {
  background: white;
  color: #4F46E5;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  margin-left: 12px;
}

#app-install-banner .banner-close {
  background: transparent;
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
  padding: 0 8px;
  margin-left: 8px;
  opacity: 0.8;
}

#app-install-banner .banner-close:hover {
  opacity: 1;
}