@import url(font.css);
@import url(reset.css);
 
body {
    margin: 0;
    background: black;
    overflow-x: hidden;
    overflow-y: scroll;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    
} 

#model_cont1 {
    width: 100vw;
    height: 100vh;
    opacity: 70%;
    z-index: 1;
}
#model_cont2 {
    width: 100vw;
    height: 100vh;
    opacity: 70%;
    z-index: 1;
}

p {
    margin-top: 0.8vw;
}

@media screen and (min-width: 700px) {  

nav {
    color: white;
    opacity: 0;
    text-align: center;
    width: 100vw;
    height: 10vh;
    position: fixed;
    z-index: 3;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    animation: nav 3s ease 2s forwards;
    box-shadow: 0px 3vw 30px 0px rgba(0, 0, 0, 0.6) inset;

}
.nav {
    
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    /* position: fixed; */
}
.btn {
    user-select: none;
    cursor: pointer; 
    position: relative;
}
#span_nav_one {
    margin-left: 2vw;
    margin-top: 1vw;
}

#span_nav_two{
    margin-top: 1vw;
}
#span_nav_three {
    margin-top: 1vw;
}
#span_nav_four{
    margin-top: 1vw;
}
#span_nav_fifth {
    margin-top: 1vw;
}

#span_nav_sixth {
    margin-right: 2vw;
    margin-top: 1vw;
}
#span_nav_seven {

    position: absolute;
    bottom: 3vw;
    left: 2vw;
    z-index: 998;
    color: white;
} 
.nav2 {
    opacity: 0;
    width: 100vw;
    height: 5vw;
    animation: nav 3s ease 2s forwards;
    position: fixed;
    z-index: 998;
    top: 95vh;
    left: 0;
    box-shadow: 0px -3vw 30px 0px rgba(0, 0, 0, 0.6) inset;
}

#textBlock1 {
    position: absolute;
    padding-bottom: 20vw;
    top: 20vw;
    left: 20vw;
    z-index: 999;
    user-select: none;
    width: 40vw;
    height: auto;
    animation: nav 3s ;
}

#xx {
    display: none;
}
}


@media screen and (max-width: 699px) {  

nav {
    display: none;
}
.nav {
    display: none;
}
.nav2 {
    display: none;
}

#textBlock1 {
    position: absolute;
    padding-bottom: 20vw; 
    top: 20vw;
    left: 6vw;
    z-index: 999;
    user-select: none;
    width: 88vw;
    height: auto;
    animation: nav 3s ;
}

#xx {
    display: block;
    position: fixed;
    top: 6vw;
    left: 6vw;
    color: white;
    z-index: 999;
    padding-bottom: 5vw;
    padding-right: 5vw;
}
}

@keyframes nav {
    0% {
        opacity: 0%;
    }
    100% {
        opacity: 100%;
    }
}