/*-------------
 	General
-------------*/

*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	overflow-x: hidden
}

html{
	font: normal 16px sans-serif;
	color: #555;
	scroll-behavior: smooth;
}

body{
	display: flex;
	flex-direction: column;
	align-items: center;
}

.bg{
	/*background-image: url("../img/mountain.jpeg");*/
	background: url("../img/mountain.jpeg") no-repeat center center;
	background-repeat: no-repeat;
	background-attachment: fixed;
	background-position: center; 
	background-size: cover;
}

ul, nav{
	list-style: none;
}

a{
	text-decoration: none;
	color: inherit;
	cursor: pointer;

	opacity: 0.9;
}

a:hover{
	opacity: 1;
}

a.btn{
	color: #fff;
	border-radius: 4px;
	text-transform: uppercase;
	background-color: #2196F3;
	font-weight: 800;
	text-align: center;
}

hr{
	width: 150px;
	height: 2px;
	background-color: #2196F3;
	border: 0;
	margin-bottom: 80px;
}

section{
	display: flex;
	flex-direction: column;
	align-items: center;

	width: 100%;
	max-width: 1000px;
	padding: 125px 100px;
}

@media (max-width: 1000px){

	section{
		padding: 100px 50px;
	}

}

@media (max-width: 600px){
	
	section{
		padding: 80px 30px;
	}

}

section h3.title{
	color: #414a4f;
	font: bold 32px 'Open Sans', sans-serif;
	margin-bottom: 35px;
	text-align: center;
}

section h2.title{
	color: #414a4f;
	font: 26px 'Open Sans', sans-serif;
	margin-bottom: 35px;
	text-align: center;
}

section p{
	max-width: 800px;
	text-align: center;
	margin-bottom: 35px;
	padding: 0 20px;
	line-height: 2;
}

ul.grid{
	width: 100%;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
}


/*----------------
 Landing Section
----------------*/

.landing{
	position: relative;
	justify-content: center;
	min-height: 100vh;
	color: #fff;
	text-align: center;
	overflow: hidden;
	
	max-width: 100%;
}

.landing .video_background{
    position: absolute;
    top: 50%; 
    left: 50%;
    -webkit-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
    min-width: 100%; 
    min-height: 100%; 
    height: auto;
    z-index: -1; 
}

.landing:after{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.landing h1{
	font: bold 60px 'Open Sans', sans-serif;
	margin-bottom: 15px;
}

.landing h3{
	font: normal 28px 'Open Sans', sans-serif;
	margin-bottom: 40px;
}

.landing a.btn{
	padding: 40px 40px;
	background-color: transparent;
}

.landing h1, h3, a.btn{
	z-index: 10;
}

.landing_logo{
	width: 300px;
	margin: 10px;
	filter: drop-shadow(2px 2px 2px black);
}

.landing_down_arrow{
	width: 50px;
}


@media (max-width: 800px){
	/*
	.landing{
		min-height: 600px;
	}
	*/
	.landing h1{
		font-size: 48px;
	}

	.landing h3{
		font-size: 24px;
	}

	.landing a.btn{
		padding: 17px 20px;
	}
	
	.landing_logo{
		width: 200px;
	}

}



/*--------------------
 	Présentation Section
---------------------*/

.presentation{
	background-color: #fff;
}

.photo_profil{
	background: rgba(247, 247, 247, 0.2);
	padding: 15px 100px;
}

#bio_bandeau{
	/*display: flex;
	justify-content: space-between;
	align-items: center;
	width: 100%;*/
}

.bio_portrait{
	height: 100%;
	padding: 50px;
}

.bio_portrait img{
	display: block;
	width: 100%;
	max-width: 400px;
	filter: drop-shadow(3px 3px 4px black);
}

.bio_text{
	display: flex;
	flex-direction: column;
	/*background-color: #F1F1F1;*/
	height: 100%;
	margin: 10px;
	justify-content: space-evenly;
}

.bio_text div{
	text-align: center;
	padding: 10px;
	height: 100%;
	display: flex;
	align-items: right;
	line-height: 2;
}


@media (max-width: 700px){

	.presentation .grid li.small,
	.presentation .grid li.large{
		flex-basis: 100%;
	}
	
	#bio_bandeau{
		flex-direction: column;
	}

}

/*--------------------
 	Social Networks Section
--------------------*/

.reseaux_sociaux{
	background: rgba(247, 247, 247, 0.4);
}

.liens_reseaux{
	display: flex;
	justify-content: space-between;
	align-items: center;
	width: 100%;
}

.liens_reseaux img{
	display: block;
	width: 100%;
	height:100%;
	margin: 10px;
}


/*--------------------
 	Realisations Section
--------------------*/

.realisations{
	background-color: #fff;
}

.video-responsive {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  padding: 50px;
}

.video-responsive::before {
  display: block;
  content: "";
  padding-top: 56.25%;
}

.video-responsive-item {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.realisations a.btn{
	padding: 20px 46px;
	margin-top: 50px;
}



/*-------------
   Polarsteps
-------------*/

.overlay {
background:transparent;
position:relative;
width:640px; /* your iframe width */
height:480px; /* your iframe height */
top:480px; /* your iframe height */
margin-top:-480px; /* your iframe height */
}

/*-------------
  Partenaires
-------------*/

.partenaires{
	background: rgba(247, 247, 247, 0.2);
}

.logos_bandeau{
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	justify-content: space-around;
	align-items: center;
	align-content: space-around;
}

.logo{
	width: 150px;
	margin: 10px;
}

.logo_a {
	height: 100%;
	width: 100%;
	box-sizing: border-box;
	
	opacity: 0.6;
	-webkit-filter: grayscale(70%);
}

.logo_a:hover{
	opacity: 1;
	-webkit-filter: grayscale(0%);
}



/*---------------------
 	Contact Section
---------------------*/

.contact{
	background-color: #f7f7f7;
}

.contact_icon{
	width: 50px;
	height: 50px;
	margin: 20px;
}

@media (max-width: 800px){

	.contact form input{
		flex-basis: 100%;
		margin: 0 0 20px 0;
	}

}



/*-------------
 	Footer
-------------*/

footer{
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	color: #fff;
	background-color: #414a4f;
	padding: 60px 0;
	
	width: 100%;
}

footer ul{
	display: flex;
	margin-bottom: 25px;
	font-size: 32px;
}

footer ul li{
	margin: 0 8px;	
}

footer ul li:first-child{
	margin-left: 0;	
}

footer ul li:last-child{
	margin-right: 0;	
}

footer p{
	text-transform: uppercase;
	font-size: 14px;
	color: rgba(255,255,255,0.6);
	margin-bottom: 10px;
}

footer p a{
	color: #fff;
}

@media (max-width: 700px){

	footer{
		padding: 80px 15px;
	}

}