*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Gideon Roman';
}
/*--HEADER---*/
.header{
    height: 40vh;
    width: 100%;
    background-image: url(img/earth_horizon_croped.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}
nav{
    width: 90%;
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
    margin: auto;
}
nav img{
    width: 200px;
}
.nav-links{
    flex: 1;
    text-align: right;
}
.nav-links ul li{
    list-style: none;
    display: inline-block;
    padding: 8px 12px;
    position: relative
}
.nav-links ul li a{
    font-family: 'Gideon Roman';
    color: white;
    text-decoration: none;
    font-size: 17px;
    font-weight: 600;
    text-shadow: 1px 1px black;
}
.nav-links ul li::after{
    content: '';
    width: 0%;
    height: 2px;
    background:white;
    display: block;
    margin: auto;
    border-radius: 10px;
    transition:0.5s;
}
.nav-links ul li:hover::after{
    width: 100%;
}
.slogan{
    color: white;
    text-align: center;
    padding-top: 50px;
    text-shadow: 2px 2px black;
}
.slogan h1{
    font-size: 80px;
}
.slogan h2{
    text-shadow: 2px 2px black;
}
.slogan p{
    font-size: 10px;
}
.background{
    background-color: #f2efea;
    height: auto;
    padding-bottom: 100px;
}
.challenge{
    padding-top: 20px; 
}
.body{
    width: 55%;
    margin: auto;
    text-align: left;
    line-height: 1.8;
    color: #12232c;
}
.challenge{
    padding-top: 50px;
    ;
}
.challenge h1{
    font-size: 32px;
}
.challenge p{
    font-family: 'Maven Pro', sans-serif;
    font-weight: 100;
    font-size: 24px;
}
.intro{
    padding-top: 50px;
}
.intro h1{
    font-size: 32px;
}
.intro p{
    font-family: 'Maven Pro', sans-serif;
    font-weight: 100;
    font-size: 24px
}
.links{
    padding-top: 50px;
}
/*--DOWNLOAD BTN---*/
.hero-btn{
    display: inline-block;
    text-decoration: none;
    margin-top: 0px;
    color: #12232c;
    padding: 12px 34px;
    font-size: 20px;
    background: transparent;
    position: relative;
    cursor: pointer;
    border: 2px solid #294b4b;
    border-radius: 3px;
    font-weight: 300
}
.hero-btn:hover{
    border: 2px solid #294b4b;
    background: #294b4b;
    transition: 0.5s;
}
/*--ABOUT THE TEAM---*/
.content{
    width: 55%;
    margin: auto;
    text-align: center;
    line-height: 25px;
    padding-top: 20px;
}
.pfp img{
    width: 100px;
    border-radius: 50%;
}
.col h3{
    font-size: 24px;
    padding-bottom: 10px
}
.row1{
    display: flex;
    justify-content: space-between;
}
.col{
    flex-basis: 45%;
    background: #fff3f3;
    border-radius: 10px;
    padding: 20px;
    box-sizing: border-box; 
}
.col:hover{
    box-shadow: 2px 1px grey;
    transition: 0.5s;
}
/*--WINDOWS OS---*/
.container{
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f2efea;
    padding: 0px;
    margin: 0px;
}
.swiper{
    width: 80%;
    height: 80%;
}
.swiper-slide img{
    width: 100%;
}
.swiper .swiper-button-prev, .swiper .swiper-button-next{
    color: white;
}
.swiper .swiper-pagination-bullet-active{
    background: white;
}
.links{
    align-items: center;
    text-align: center;
    background-color: #f2efea;
    padding-bottom: 15vh;
}
.links h1{
    padding-bottom: 30px;
}
/*--SATELLITES---*/
/*--SUB SATELLITES---*/
.satellites{
    box-sizing: border-box;
    width: 100%;
    height: 100vh;
    background-image: url(satellites/img/background.png)
}
.sat-nav ul{
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    padding: 0;
    display: flex;
}
.sat-nav ul li{
    list-style: none;
}
.sat-nav ul li a{
    position: relative;
    display: block;
    padding: 10px 60px;
    margin: 20px 0px;
    text-decoration: none;
    color: antiquewhite;
    transition: 0.5s;
    font-weight: bold;
    font-size: 22px;
}
.sat-nav ul li a:before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-top: 1px solid white;
    border-bottom: 1px solid white;
    transform: scaleY(2);
    opacity: 0;
    transition: 0.5s;
}
.sat-nav ul li a:hover:before{
    transform: scaleY(1);
    opacity: 1;
}
.sat-container{
    margin: auto;
    width: 90%;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding-top: 30vh;
    color:  antiquewhite;
}
.sat-container h1{
    width: 18%;
    text-align: right;
    font-family: 'Rubik Dirt', cursive;
    font-size: 50px
}
.sat-container img{
    width: 60%;
    filter: drop-shadow(.75em .75em .1em);
    color: rgba(0, 0, 0, 0.7);
    
}
.sat-container p{
    width: 18%;
    text-align: left;
    left: 0;
    padding-left: 14px;
    border-left: 2px solid antiquewhite;
    padding-bottom: 10vh;
}
/*--.landsat8{
    width: 100%;
    height: 100vh;
}
.landsat8 img{
    width: 50%;
    filter: drop-shadow(.75em .75em .1em);
color: rgba(90, 90, 119, 0.78);}---*/
.gallery{
    width: 100%;
    background-color: antiquewhite;   
    padding-top: 10vh;
}
.container-all{
    margin: auto;
    width: 80%;
    display: flex;
    align-items: center;
    justify-content: space-around;
    color:  black;
}
.img-container-before{
    text-align: center;
    padding-bottom: 20px;
}
.img-container-before h1{
    padding-bottom: 20px;
}
.img-container-before img{
    width: 90%;
    border-radius: 5px;
    padding-bottom: 20px
}
.img-container-before p{
    color: antiquewhite;
    font-size: 1px;
    padding-bottom: 10px
}
.img-container-before button{
                display: inline-block;
                outline: 0;
                text-align: center;
                cursor: pointer;
                padding: 12px 30px;
                border: 0;
                color: #fff;
                font-size: 17.5px;
                border: 2px solid transparent;
                border-color: #000;
                color: #000;
                background: transparent;
                font-weight: 800;
                line-height: 30px;
                transition: background,color .1s ease-in-out;
    border-radius: 5px;
}
.img-container-before  button:hover{
                background-color: #000;
                color: #fff;
}
.img-container-after{
    text-align: center;
    padding-bottom: 20px;
}
.img-container-after h1{
    padding-bottom: 20px;
}
.img-container-after img{
    width: 90%;
    border-radius: 5px;
    padding-bottom: 20px
}
.img-container-after p{
    color: antiquewhite;
    font-size: 1px;
    padding-bottom: 10px;
}
.img-container-after button{
                display: inline-block;
                outline: 0;
                text-align: center;
                cursor: pointer;
                padding: 12px 30px;
                border: 0;
                color: #fff;
                font-size: 17.5px;
                border: 2px solid transparent;
                border-color: #000;
                color: #000;
                background: transparent;
                font-weight: 800;
                line-height: 30px;
                transition: background,color .1s ease-in-out;
    border-radius: 5px;
}
.img-container-after  button:hover{
                background-color: #000;
                color: #fff;
}