body {
  background: #0f0f0f;
  color: white;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: #1c1c1c;
  padding: 30px;
  border-radius: 12px;
  width: 340px;
  text-align: center;
}

button {
  width: 100%;
  margin-top: 15px;
  padding: 10px;
  border: none;
  border-radius: 6px;
  background: #4caf50;
  color: white;
  cursor: pointer;
}

.progress-container {
  width: 100%;
  height: 12px;
  background: #333;
  border-radius: 6px;
  margin-top: 20px;
  overflow: hidden;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: #4caf50;
  transition: width 0.2s linear;
}

#downloadLink {
  display: none;
  margin-top: 15px;
  color: #4caf50;
  text-decoration: none;
}