body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.login-container {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 300px;
}
h1 {
    text-align: center;
    color: #333;
}
form {
    display: flex;
    flex-direction: column;
}
label {
    margin-top: 1rem;
    color: #555;
}
input[type="text"], input[type="password"] {
    padding: 0.5rem;
    margin-top: 0.25rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}
input[type="submit"] {
    margin-top: 1rem;
    padding: 0.5rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}
input[type="submit"]:hover {
    background-color: #0056b3;
}
.error {
    color: red;
    margin-top: 1rem;
    text-align: center;
}
.message {
    color: green;
    margin-top: 1rem;
    text-align: center;
}
p {
    text-align: center;
    margin-top: 1rem;
}