body{
    padding: 0;
    margin: 0;
    font-family: "Roboto", sans-serif;
    margin-top: 95px;
}

.content{
    max-width: 1500px;
}

.nav{
    box-sizing: border-box;
    width: 100%;
    padding: 12px 35px;
    display: flex;
    background-color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
}

#nav_text{
    display: flex;
}

.section{
    font-family: "Montserrat", sans-serif;
    text-align: center;
    margin-top: 200px;
    font-weight: 700;
    font-size: 30px;
}

.darkscreen{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: 50%;
    z-index: -1;
}

#logo{
    width: 100px;
    padding-right: 20px;
}

a{
    font-weight: bolder;
}

.nav_a{
    color: black;
    text-decoration: none;
    display: block;
    margin: 17px 10px;
    /* font-size: 16px; */
    line-height: 35px;
}

.footer{
    background-color: #1c1c1c;
    color: #e0e0e0;
    text-align: center;
    padding: 100px 20px;
}

#hamburger_btn{
    display: none;
}

@media screen and (max-width: 768px) {
    .nav{
        padding: 5px 35px;
        justify-content: center;
    }
    #logo{
        display: block;
        margin: 0 auto;
    }
    
    /* hamburger start */
    #hamburger_btn{
        display: block;
        position: fixed;
        top: 10px;
        left: 10px;
        z-index: 30;
    }
    #hamburger_btn img{
        height: 35px;
    }
    #nav_text{
        display: block;
        position: fixed;
        top: -500px;
        left: 0;
        width: 100%;
        box-sizing: border-box;
        background-color: #fff;
        padding: 30px 20px;
        transition: all .5s;
        z-index: 10;
    }
    #nav_text a{
        display: block;
        color: #333;
        margin: 0;
        padding: 5px 10px;
        border-bottom: 1px solid #ddd;
    }
    #nav_text a:last-child{
        border-bottom: none;
    }
    #hamburger_darkscreen{
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: #000;
        display: none;
        opacity: 0;
        z-index: 5;
        transition: all .5s;
    }
    /* hamburger end */

    .logo{
        display: block;
        margin: 0 auto;
    }
    #logo{
        width: 60px;
        padding: 0;
    }
    .section{
        margin-top: 100px;
    }
}