body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
}

.container {
  max-width: 600px;
  margin: 50px auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
}

form {
  display: flex;
  gap: 10px;
}

input {
  flex: 1;
  padding: 10px;
  font-size: 16px;
}

button {
  padding: 10px 20px;
  background: #4f46e5;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #4338ca;
}

.output {
  margin-top: 20px;
  padding: 15px;
  background: #eef2ff;
  border-radius: 5px;
  min-height: 80px;
}

footer {
  margin-top: 20px;
}