*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{

    font-family:Segoe UI,Arial,sans-serif;

    background:linear-gradient(135deg,#4f46e5,#3b82f6);

    height:100vh;

}

.login-wrapper{

    display:flex;

    justify-content:center;

    align-items:center;

    height:100vh;

}

.login-card{

    width:420px;

    background:#fff;

    border-radius:18px;

    padding:40px;

    box-shadow:0 20px 50px rgba(0,0,0,.25);

}

.logo{

    text-align:center;

    font-size:40px;

    font-weight:bold;

    color:#4f46e5;

}

.subtitle{

    text-align:center;

    color:#777;

    margin-top:10px;

    margin-bottom:35px;

}

.form-control{

    height:48px;

}

.input-group-text{

    background:#fff;

}

.btn-login{

    height:48px;

    font-size:18px;

    font-weight:600;

}

.version{

    margin-top:25px;

    text-align:center;

    color:#999;

    font-size:13px;

}