body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f4f8;
}

form {
    padding: 20px;
    border: 1px solid #d1e3f1;
    border-radius: 5px;
    background-color: #ffffff;
    width: 300px;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.1);
}

h2 {
    margin-top: 0;
    font-size: 24px;
    color: #003399;
    text-align: center;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
    border: 1px solid #cdd4df;
    border-radius: 4px;
    box-sizing: border-box;
    background-color: #f0f4f8;
}

input[type="submit"] {
    width: 100%;
    padding: 10px;
    background-color: #003399;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

input[type="submit"]:hover {
    background-color: #002080;
}

.error-message {
    color: #d9534f;
    font-size: 14px;
    margin-top: 10px;
    text-align: center;
}