body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f7f7f7;
}

.container {
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

h2 {
    text-align: center;
    color: #333333;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

label {
    margin: 10px 0;
    color: #333333;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #cccccc;
    border-radius: 3px;
    outline: none;
}

input[type="submit"] {
    width: 100%;
    padding: 12px;
    margin-top: 20px;
    background-color: #4caf50;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
    background-color: #45a049;
}

@media (max-width: 480px) {
    .container {
        max-width: 90%;
    }
}