body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  padding: 40px;
  text-align: center;
}

.login-box, .dashboard {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 8px #ccc;
  display: inline-block;
}

input, button {
  padding: 10px;
  margin: 8px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  cursor: pointer;
  background: #007bff;
  color: #fff;
  border: none;
}

button:hover {
  background: #0056b3;
}

.error {
  color: red;
}