body {
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background-color: #f5f5f5;
}
.login-container {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  width: 300px;
}
h2 {
  text-align: center;
  margin-bottom: 20px;
}
.form-group {
  margin-bottom: 15px;
}
label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}
input {
  width: 100%;
  padding: 8px;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 4px;
}
button {
  width: 100%;
  padding: 10px;
  background-color: #4caf50;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}
button:hover {
  background-color: #45a049;
}
.error {
  color: red;
  text-align: center;
  margin-top: 10px;
}