body{

    margin:0;

    font-family:Arial,sans-serif;

    background:#eef2f7;

    display:flex;

    justify-content:center;

    align-items:center;

    height:100vh;

}
.testata{

    background:#2f3b52;

    color:white;

    padding:20px;

    border-radius:12px;

    text-align:center;

    margin-bottom:25px;

}

.titoloIstituto{

    font-size:18px;

    font-weight:bold;

    letter-spacing:1px;

}

.nomeIstituto{

    font-size:28px;

    font-weight:bold;

    margin-top:6px;

}

.servizio{

    margin-top:10px;

    font-size:18px;

    color:#d8e4f5;

}

.loginBox{

    background:white;

    padding:40px;

    width:100%;

    max-width:420px;

    border-radius:15px;

    box-shadow:0 6px 20px rgba(0,0,0,.15);

    text-align:center;

    box-sizing:border-box;

}

.loginBox h1{

    font-size:60px;

    margin-bottom:10px;

}

.loginBox h2{

    color:#2f3b52;

}

.loginBox p{

    color:#666;

    margin-bottom:30px;

}

label{

    display:block;

    text-align:left;

    margin-top:15px;

    margin-bottom:5px;

    font-weight:bold;

}

input{

    width:100%;

    padding:12px;

    border-radius:8px;

    border:1px solid #ccc;

    box-sizing:border-box;

}

button{

    margin-top:25px;

    width:100%;

    padding:14px;

    background:#1976d2;

    color:white;

    border:none;

    border-radius:8px;

    cursor:pointer;

    font-size:18px;

}

button:hover{

    background:#1565c0;

}

.ritorna{

    display:block;

    margin-top:25px;

    padding:12px;

    background:#f3f6fa;

    border-radius:8px;

    color:#1976d2;

    text-decoration:none;

    transition:.3s;

}

.ritorna:hover{

    background:#e5eef8;

}

.logo{

    width:90px;

    max-width:25vw;

    height:auto;

}

@media screen and (max-width:600px){

    body{

        padding:15px;

        align-items:flex-start;

    }
     .testata{

        margin:-25px -25px 20px -25px;

        padding:18px;

    }

    .titoloIstituto{

        font-size:15px;

    }

    .nomeIstituto{

        font-size:22px;

    }

    .servizio{

        font-size:16px;

    }

    .loginBox{

        margin-top:30px;

        padding:25px;

    }

    .loginBox h1{

        font-size:42px;

    }

    .loginBox h2{

        font-size:26px;

    }

    button{

        font-size:16px;

        padding:12px;

    }

}