body {
  background-color: #121212;
  color: #ffffff;
  font-family: Arial, sans-serif;
  text-align: center;
  padding: 50px;
}

.container {
  max-width: 600px;
  margin: 0 auto;
}

input[type=text] {
  width: 70%;
  padding: 10px;
  margin-top: 20px;
  border-radius: 5px;
  border: none;
}

button {
  padding: 10px 20px;
  margin-left: 10px;
  background-color: #00ff7f;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #00e676;
}

.result {
  margin-top: 30px;
  text-align: left;
  background-color: #1e1e1e;
  padding: 20px;
  border-radius: 10px;
}