/* pagina chi siamo */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.jumbotron{

    background-image:linear-gradient(rgba(0,0,0,0.6),rgba(0,0,0,0.6)), url(about-t-hero_d.jpg);
    background-position: center;
    background-size: cover;
    color: #fff;
    height: 30vh;
    padding-top: 60px;
    padding-left: 100px;
    padding-right: 100px;
    text-align: center;
}
.container{
    text-align: center;
    padding-top: 20px;
}


nav{ 
    height: 0vh;
}
.logo{
    float: left;
    padding-left: 15px;
    padding-top: 15px;
}
.logo img {
    height: 100px;
    width: auto;
}
nav ul{
    float: right;
}
nav ul li{
    display: inline-block;
}
nav ul li:not(:first-child){
    margin-left: 48px;
}
nav ul li:last-child{
    margin-right: 28px;
}
nav ul li a{
    display: inline-block;
    color: #B8B8B8;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    padding-right: 15px;
    padding-top: 25px;
}
nav .items li a:hover{
    color: #ffffff;
    text-decoration: none;
}
.hidden{
    display: none;
}
@media only screen and (max-width: 864px){
    nav .items li a:hover{
        color: #acacac;
        text-decoration: none;
    }
    nav{
        height: 0vh;
    }
    .nav-wrapper{
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: #fff;
        z-index: -1;
        opacity: 0;
        transition: all 0.2s ease;
    
    }
    .nav-wrapper ul{
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 100%;
    }
    .nav-wrapper ul li{
        display: block;
        width: 100%;
        float: none;
        text-align: right;
        margin-bottom: 10px;
    }
    .nav-wrapper ul li:nth-child(1) a{
        transition-delay: 0.2s;
    }
    .nav-wrapper ul li:nth-child(2) a{
        transition-delay: 0.3s;
    }
    .nav-wrapper ul li:nth-child(3) a{
        transition-delay: 0.4s;
    }
    .nav-wrapper ul li:nth-child(4) a{
        transition-delay: 0.5s;
    }
    nav ul li:not(:first-child){
        margin-left: 0;
    }
    .nav-wrapper ul li a{
        padding: 10px 22px;
        color: #000;
        font-weight: 600;
        font-size: 14px;
        letter-spacing: 1.2px;
        opacity: 0;
        transform: translateX(-20px);
        transition:all 0.2s ease;
    }
    .nav-btn{
        position: fixed;
        right: 10px;
        top: 10px;
        width: 48px;
        height: 48px;
        display: block;
        cursor: pointer;
        z-index: 9999;
        border-radius: 50%;
    }
    .nav-btn i{
        display: block;
        width: 20px;
        height: 2px;
        background: #fff;
        border-radius: 2px;
        margin-left: 14px;
    }
    .nav-btn i:nth-child(1){
        margin-top: 24px;  
    }
    .nav-btn i:nth-child(2){
        margin-top: 4px;  
        opacity: 1;
    }
    .nav-btn i:nth-child(3){
        margin-top: 4px;  
    
    }
    #nav:checked + .nav-btn{
        transform: rotate(45deg);
    }
    #nav:checked + .nav-btn i{
        background: #000;
        transition: all 0.2s ease;
    }
    #nav:checked + .nav-btn i:nth-child(1){
        transform: translateY(6px) rotate(180deg);
    }
    #nav:checked + .nav-btn i:nth-child(2){
        opacity: 0;
    }
    #nav:checked + .nav-btn i:nth-child(3){
        transform: translateY(-6px) rotate(90deg);
    }
    #nav:checked ~ .nav-wrapper{
        z-index: 9990;
        opacity: 1;
    }
    #nav:checked ~ .nav-wrapper ul li a{
        opacity: 1;
        transform: translateX(0);
    }
}