body {
  font-family: "Segoe UI", sans-serif;
  background: #f2f4f8;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  background: #fff;
  padding: 20px;
  margin: 20px;
  border-radius: 16px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

h1 {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

p {
  font-size: 1rem;
  margin-bottom: 20px;
}

button {
  padding: 12px 24px;
  font-size: 1rem;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
  width: 100%;
}

button:hover {
  background-color: #0056b3;
}

#output {
  margin-top: 20px;
  font-size: 1rem;
  word-break: break-word;
}