body {
  font-family: sans-serif;
  background: #f4f4f4;
  display: flex;
  justify-content: center;
  padding-top: 100px;
}
.container {
  background: white;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
input[type="file"] {
  margin-bottom: 15px;
}
button {
  padding: 10px 20px;
  background: #ff6600;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}
button:hover {
  background: #e65c00;
}
#status {
  margin-top: 20px;
}
#downloadLink {
  display: block;
  margin-top: 15px;
  font-weight: bold;
  color: #0066cc;
}