body {
  font-family: 'Segoe UI', sans-serif;
  background: #f0f4fa;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  max-width: 400px;
  width: 100%;
  text-align: center;
}

h1 {
  margin-top: 0;
  color: #222;
}

p {
  font-size: 0.95rem;
  color: #555;
}

input[type="file"] {
  margin: 1rem 0;
  display: block;
  width: 100%;
}

button {
  background-color: #007cfb;
  color: white;
  border: none;
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 1rem;
}

button:hover {
  background-color: #005fcc;
}

#status {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: green;
}

#downloadLink {
  margin-top: 1rem;
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: #28a745;
  color: white;
  border-radius: 6px;
  text-decoration: none;
}