body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    font-size: 14px;
    line-height: 1.6;
}

.container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
    max-width: 400px;
    margin: 50px auto;
}

.alert-danger {
    color: #a94442;
    background-color: #f2dede;
    border-color: #ebccd1;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

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

.form-control {
    border: 1px solid #ced4da;
    border-radius: 4px;
    padding: 10px;
    font-size: 16px;
    margin-bottom: 15px;
}

.btn-primary {
    background-color: #007bff;
    border: none;
    color: white;
    padding: 12px 20px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #0056b3;
}

footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

footer a {
    color: #007bff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 576px) {
    .container {
        padding: 20px;
        margin: 20px auto;
    }
}