* {
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
    margin: 0;
}

section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 0 100px 0 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-y: hidden;
}

.bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #00bcd4;
    transition: 0.8s;
}

header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 999;
}

/*=============== HEADER & NAV ===============*/
#Navi {
    background-color: black;
}

#Navi a {
    color: white;
}

#navbarNav ul li a {
    color: #fff;
}

.navbar-toggler {
    margin-right: 10px;
    width: 20px;
    height: 20px;
    position: relative;
    transition: .5s ease-in-out;
}

.navbar-toggler,
.navbar-toggler:focus,
.navbar-toggler:active,
.navbar-toggler-icon:focus {
    outline: none;
    box-shadow: none;
    border: 0;
}

.navbar-toggler span {
    margin: 0;
    padding: 0;
}

.toggler-icon {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: #fff;
    opacity: 1;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.middle-bar {
    margin-top: 0px;
}

.navbar-toggler .top-bar {
    margin-top: 0px;
    transform: rotate(135deg);
}

.navbar-toggler .middle-bar {
    opacity: 0;
    filter: alpha(opacity=0);
}

.navbar-toggler .bottom-bar {
    margin-top: 0px;
    transform: rotate(-135deg);
}

.navbar-toggler.collapsed .top-bar {
    margin-top: -20px;
    transform: rotate(0deg);
}

.navbar-toggler.collapsed .middle-bar {
    opacity: 1;
    filter: alpha(opacity=100);
}

.navbar-toggler.collapsed .bottom-bar {
    margin-top: 20px;
    transform: rotate(0deg);
}

header .logo {
    position: relative;
    font-weight: 600;
    color: white;
    text-decoration: none;
    font-size: 2rem;
}

header .navigation li {
    list-style: none;
}

header .navigation {
    position: relative;
    display: flex;
}

header .navigation li a {
    display: inline-block;
    color: white;
    font-weight: 400;
    margin-left: 10px;
    padding: 8px 15px;
    border-radius: 40px;
    text-decoration: none;
}

header .navigation li a:hover,
header .navigation li a:active {
    background: white;
    color: #333;
}

.content {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    height: calc(80vh - 0rem);
}

.content .textbox {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.content .textbox h2 {
    color: white;
    font-size: 48px;
    line-height: 1.2rem;
    font-weight: 700;
    text-decoration: uppercase;
}

.content .textbox p {
    color: rgb(255, 255, 255);
    line-height: 35px;
    margin-top: 20px;
    font-size: 18px;
}

.content .textbox a {
    display: inline-block;
    margin-top: 20px;
    padding: 8px 20px;
    background-color: white;
    color: #333;
    border-radius: 40px;
    letter-spacing: 1px;
    text-decoration: none;
}

.content .imgBox {
    height: 100%;
    width: 100%;
}

.content .imgBox img {
    max-width: 400px;
}

model-viewer {
    width: 100%;
    height: 100%;
}

ul.thumb li model-viewer {
    height: 60px;
    max-width: 60px;
}

.thumb {
    position: absolute;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    display: flex;
}

.thumb li {
    list-style: none;
    display: inline-block;
    margin: 0 10px;
    cursor: pointer;
    transition: 0.5s;
    height: 70px;
    width: 70px;
    background-color: rgba(255, 255, 255, 0.25);
    padding: 5px;
    border: rgba(255, 255, 255, 0.25);
}

.thumb li.active {
    border: 2px solid rgba(255, 255, 255, 1);
}

.thumb li.active::before {
    opacity: 1;
}

.thumb li img {
    max-width: 60px;
}



/* Responsive */
@media screen and (max-width: 769px){
    section{
        display: block;
        padding: 0 20px 0 20px;
    }
    .content .textbox h2{
        font-size: 24px;
    }
    .content .textbox p{
        line-height: 25px;
        font-size: 14px;
        margin-top: 1px;
    }
    .content{
        flex-direction: column-reverse;
        height: calc(100vh - -1rem);
    }
    .content .textbox {
        font-display: unset;
        margin-top: 20px;
    }
    .content .imgBox{
        height: 70%;
        margin-top: 10px;
    }
    .thumb{
        margin-bottom: 52px;
    }
    .content .textbox a{
        margin-top: 8px;
    }
    .thumb li{
        height: 50px;
        width: 50px;
    }
    /* ul.thumb li model-viewer{
        height: 40px;
        max-width: 60px;
    } */
}