body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f7f7f7;
  color: #222;
  padding-top: 40px;
}
input, button {
  padding: 10px;
  margin: 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
}
button {
  background: #222;
  color: white;
  cursor: pointer;
}
button:hover {
  background: #444;
}
.logo {
  width: 150px;
}
.error {
  color: red;
}