.hero {
    height: 100vh;
    min-height: 650px;
    width: 100%;
    position: relative;
    display: table;
    text-align: center;
}

.hero .centered {
    margin-top: 50px;
    margin-bottom: 50px;
}

.hero img {
    max-width: 600px;
    width: auto;
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-height: 62vh;
}

.mainbuttons {
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    width: 100%;
    max-width: 460px;
}

a.btn_main {
    display: inline-block;
    border: 3px solid;
    border-image: linear-gradient(to right, #555, #333) 1;
    background: #202020;
    color: #EEE;
    font-weight: 600;
    padding: 15px 20px;
    line-height: 1.2em;
    height: auto;
    width: 139px;
    float: none;
    font-size: 1em;
}

a.btn_main.primary {
    background: #070707;
    color: #EEE;
    font-size: 1.3em;
    font-weight: 900;
    width: calc(90% + 10px);
    margin-bottom: 8px;
    border-radius: 0;
    border: 3px solid;
    border-image: linear-gradient(to right, #333330, #111) 1;
}

#btn_main_highlight {
    background: #172942;
    color: #eee;
    font-weight: 900;
    width: 98%;
    margin-bottom: 8px;
    line-height: 26px;
    padding: 10px 0px;
    height: auto;
    display: block;
    font-size: 1.15em;
}

div.arrow_down {
    width: 100%;
    display: block;
    position: relative;
    bottom: 70px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    color: #999;
    opacity: 0.7;
}

div.arrow_down p {
    margin-bottom: 5px;
    color: #eee;
}

@media (min-width: 701px) and (max-height: 700px) {
    .hero img {
        max-height: 76vh;
    }
}

@media (max-width: 700px) {
/*     .mainbuttons {
        margin-bottom: 10px;
    } */

    .mainbuttons a.btn_main {
        width: 200px;
        margin-bottom: 9px;
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .mainbuttons a.btn_main.primary {
/*         width: calc(90% + 10px);
        max-width: 60%; */
        border: 2px solid #EEE;
        border-radius: 0;
    }

    .mainbuttons.row2 {
        margin-bottom: 100px;
    }

    #btn_main_highlight {
        max-width: inherit;
        width: 410px;
        margin-left: auto;
        margin-right: auto;
    }

    div.arrow_down {
        display: none;
    }
}

@media (max-width: 414px) {
    #btn_main_highlight {
        width: 200px;
    }
}

/* ABOUT */

.jumbotron {
    background: none;
    width: 90%;
    max-width: 800px;
    text-align: justify;
    margin-left: auto;
    margin-right: auto;
}

.introduction {
    margin-top: 30px;
    line-height: 2.5em;
}

.introduction h2 {
    margin-bottom: 50px;
    font-weight: 800;
    letter-spacing: -0.05em;
}

.introduction p {
    font-size: 1.3em;
    margin-bottom: 50px;
}

.introduction img.mainlogo {
    width: 90%;
    max-width: 400px;
    margin: 0 auto;
    display: block;
}

@media (max-width: 1000px) {
    .introduction h2 {
        font-size: 30px;
    }
}

@media (max-width: 700px) {
    .introduction .col-sm-6 {
        margin: 50px 10px 80px;
    }

    .introduction h2 {
        font-size: 20px;
    }

    .introduction p {
        font-size: 14px;
        line-height: 1.8;
    }
}