/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}

*{
    box-sizing: border-box
}


body{
   font-family: 'Maven Pro', sans-serif;
    font-size: 0.875em;
   
}

h1{
   font-family: 'Bitter', serif;
    font-size: 3.8em;
    color:  #101841;
    font-weight: bold;
   
}

h4{
    text-transform: uppercase;
    font-size:1.188em;
    margin-bottom: 0.6em;
}

h2{
   text-transform: uppercase;
   color:blue;
   font-size:20px;

   padding:10px; 
}
h2 a{
   color:blue;
   text-decoration:underline;
}

h3{
    font-size:2em;
    line-height: 1.2em;
    margin: auto;
    text-align: center;
    
}
section{
    width: 100%;
    min-height: 100vh; 
}

.welcome{
    background-image: url(img/tlo1.jpg);
    background-size: cover;
    
}
.content{
    width:1200px;
    height: auto;
    margin: auto;
}

.row{
    display: flex;
}
nav ul li{
    display: inline;
    font-size: 1.7em;
    margin-left: 35px;
}

nav{
    margin-left: auto;
    margin-top: 65px;
    
}

a{
    text-decoration: none;
    color: #101841;
}

.active{
     border-bottom: 2px solid #101841;;
    padding-bottom: 0.1em;
}


.fa-chevron-down {
    margin-top: 22px;
    margin-left: 15px;;
}

.welcome .row:nth-child(2){
    flex-direction: column;
    text-align: center;
    mxargin-top: 200px;
    
}

.welcome img{
    margin-left: auto;
    margin-right: auto;
  
}

#circledown{
    width: 80px;
     margin-top: 300px;
    animation-name: circle1;
    animation-duration: 0.5s;
    animation-iteration-count: infinite;
    animation-direction: alternate;
    margin-left: auto;
    margin-right: auto;
}

.welcome .circle {
   width:80px;
}
@keyframes circle1 {
    from {
        margin-top: 80px
    }
    to {
        margin-top: 85px
    }
}
.osystemie{
    background-color: #101841;
    color: white;
    line-height: 1.3em;
}

.osystemie .row:nth-child(1){
   align-content: center;
}
.osystemie .row:nth-child(3){
    margin-top: 80px;
}

.osystemie .row:nth-child(4){
    margin-top: 30px;
}


.row .col{
    text-align: center;
    padding: 10px 30px;;
}
.circle-col{
    width:120px;
    height: 120px;
    background-color: white;
    border-radius: 100%;
    display: inline-block;
    margin-bottom: 20px;
}

.circle-col i{
    color:#101841;
    font-size: 60px;
    margin-top: 30px;
}

#scroll-to-top{
    display:none;
   position:fixed;
   bottom:15px;
   right:20px;
   
}
#scroll-to-top:hover{
   opacity:1;
}

.hamburger{
    font-size:50px;
    color: #101841;
    display: none;
}
/**MEDIA@*******************************************************************/


@media only screen and (max-width: 500px){

    .welcome{
          
    }
    .welcome .row:nth-child(1){
       
     
        width: 100%;
        top:0px;
        text-align: center;
       
    }
    
    nav{
        margin-right: auto;
        margin-top: 10px;
        padding: 15px;
        display: none;
        
       
        
    }
    
    nav ul li {
        display: block;
        margin-left: 0;
    }
  
    
    .row{
        flex-direction: column;
    }
    .content{
        width:100%;
    }
    
    .welcome img{
        width:80%;
    }
    
    h1{
        font-size: 2.5em;
    }
    
    .welcome .row:nth-child(2) {
     position: absolute;
    top: 1vh;
    }
    
    .hamburger{
    font-size:50px;
    color: #101841;
    display: block;
    position: absolute;
    left:80%;
    top:5%;
    }
    
        .show{
        display:block;
        
    }
}