#installContainer {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

#installPrompt {
  background: #1e1e2d;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  color: #fff;
  max-width: 300px;
  width: 90%;
  box-shadow: 0 5px 15px rgba(0,0,0,0.5);
  animation: fadeIn 0.3s ease-in-out;
}

#installPrompt img {
  width: 80px;
  height: 80px;
  margin-bottom: 10px;
}

#installPrompt h4 {
  margin: 0;
}

#installPrompt p {
  font-size: 14px;
  margin: 8px 0 16px;
}

#btnInstall {
  background-color: #6366f1;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}