body {
    font-family: Tahoma, sans-serif;
    background: #f0f2f5;
    direction: rtl;
}
.login-box {
    width: 350px;
    margin: 100px auto;
    padding: 30px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0px 0px 10px #aaa;
}
.login-box h2 {
    text-align: center;
    margin-bottom: 20px;
}
.login-box input {
    width: 100%;
    padding: 10px;
    margin: 5px 0 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.login-box button {
    width: 100%;
    padding: 10px;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.login-box .error {
    color: red;
    text-align: center;
}