body {
  margin: 0;
  background: black;
  color: white;
  font-family: "Courier New", monospace;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
}

.secret-image {
  max-width: 300px;
  display: block;
  margin: 0 auto 20px;
}

h1 {
  font-size: 2em;
  margin-bottom: 20px;
}

input, button {
  background: black;
  color: white;
  border: 1px solid white;
  padding: 5px 10px;
  font-family: "Courier New", monospace;
}
button:hover {
  background: white;
  color: black;
  cursor: pointer;
}