body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}

.login-container {
    width: 300px;
    margin: 100px auto;
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 10px;
    background: #333;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background: #555;
}

.error {
    margin-top: 10px;
    color: red;
    text-align: center;
}