body {
    font-family: Arial, sans-serif;
    background-color: #f7f7f7;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 400px;
    margin: 30px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

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

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

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

form .form-group input[type="text"],
form .form-group input[type="email"],
form .form-group input[type="password"] {
    width: calc(100% - 22px);
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

form .btn {
    display: block;
    width: 100%;
    padding: 10px;
    border: none;
    background-color: #5cb85c;
    color: white;
    cursor: pointer;
    border-radius: 5px;
    font-size: 16px;
}

form .btn:hover {
    background-color: #4cae4c;
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
    color: #a94442;
    background-color: #f2dede;
    border-color: #ebccd1;
}

a {
    color: #5cb85c;
}

a:hover {
    text-decoration: none;
}