:root {
	--line: #2563eb;
	--background: #030712;
}

.timeline_conteneur{
	background: #030712;
	overflow: hidden;
	padding-top: 112px;
	padding-bottom: 128px;
}

.timeline_conteneur .center{
	max-width: 1728px;
	margin: 0 auto;
}

.timeline_header{
	display: flex;
	justify-content: space-between;
	padding-bottom: 80px;
    padding-left: var(--padding-conteneur);
	padding-right: var(--padding-conteneur);
}

.timeline_header h2{
	max-width: 1070px;
	padding-bottom: 0;
}

.timeline_navigation{
	display: flex;
	justify-content: space-between;
	gap: 64px;
}

.timeline_back{
	background: url(../../images/arrow_back.svg) no-repeat;
	width: 95px;
	height: 77px;
	display: block;
	background-size: contain;
	transition: all ease 0.2s;
	cursor: pointer;
}

.timeline_next{
	background: url(../../images/arrow_next.svg) no-repeat;
	width: 95px;
	height: 77px;
	display: block;
	background-size: contain;
	transition: all ease 0.2s;
	cursor: pointer;
}

.timeline_back:hover{
	background: url(../../images/arrow_back_hover.svg) no-repeat;
	background-size: contain;
}

.timeline_next:hover{
	background: url(../../images/arrow_next_hover.svg) no-repeat;
	background-size: contain;
}

.timeline {
	user-select: none;
	transition: all ease 0.2s;
	display: grid;
	grid-auto-columns: max-content;
	grid-auto-flow: column;
	grid-template-rows: auto auto;
}

.timeline .cell {
	grid-column: span 2;
	display: flex;
	padding: 0 1rem;
}

.timeline .cell:nth-child(2) {
	grid-column: span 3;
	justify-content: flex-end;
}

.timeline .cell .cell-content {
	display: inline-flex;
	flex-direction: column;
	border-left: 1px solid var(--line);
	position: relative;
	background: var(--background);
}

.timeline .cell .cell-content::after {
	/*content: "";
	display: block;
	background: var(--line);
	height: 0.5rem;
	width: 0.5rem;
	position: absolute;
	left: -0.25rem;
	border-radius: 50%;*/
}

.timeline .cell .cell-content dt {
	background: var(--background);
	padding-bottom: 0;
	position: relative;
	left: -1px;
	padding-left: 80px;
	padding-right: 80px;
	font-size: 56px;
	letter-spacing: 0.06em;
	line-height: 112.5%;
	text-transform: uppercase;
	font-weight: 500;
	font-family: "halogen", sans-serif;
	color: #415ad5;
	max-width: 580px;
	font-weight: bold;
}

.timeline .cell .cell-content dt:before{
	content: "";
	height: 50%;
	width: 1px;
	position: absolute;
	left: 0;
	bottom: 0;
	border-left: 1px solid var(--line);
}

.timeline .cell .cell-content dt:after{
	content: "";
	background: #3348BB;
	height: 1px;
	width: 24px;
	position: absolute;
	left: 0;
	top: 50%;
}

.timeline .cell .cell-content dd {
	background: var(--background);
	margin: 0;
	position: relative;
	left: 0;
	color: #f4f4f6;
	padding-left: 80px;
	padding-right: 80px;
	max-width: 580px;
}

.timeline .cell .cell-content dd.dd_title{
	font-size: 40px;
	letter-spacing: 0.06em;
	line-height: 112.5%;
	text-transform: uppercase;
	font-weight: 900;
	font-family: "halogen", sans-serif;
	padding-bottom: 24px;
	padding-top: 36px;
}

.timeline .cell .cell-content dd.dd_description{
	padding-bottom: 80px;
}

.timeline .cell:nth-child(odd) .cell-content {
	padding-bottom: 0;
	border-bottom: 1px solid var(--line);
	justify-content: flex-end;
	margin-top: auto;
}

.timeline .cell:nth-child(odd) .cell-content::after {
	bottom: -0.25rem;
}

.timeline .cell:nth-child(even) .cell-content {
	padding-top: 1rem;
	position: relative;
	top: -1px;
	border-top: 1px solid var(--line);
}

.timeline .cell:nth-child(even) .cell-content::after {
	top: -0.25rem;
}

.timeline .cell:nth-child(even) .cell-content dt {
	margin-top: 80px;
}

.timeline .cell:nth-child(even) .cell-content dt:before{
	content: "";
	height: 50%;
	width: 1px;
	position: absolute;
	left: 0;
	top: 0;
	border-left: 1px solid var(--line);
}

.timeline .cell:nth-child(even) .cell-content dt:after{
	content: "";
	background: #3348BB;
	height: 1px;
	width: 24px;
	position: absolute;
	left: 0;
	top: 50%;
}

.timeline .cell:nth-child(even) .cell-content dd {
	flex-grow: 1;
	left: -2px;
}

.timeline .cell:nth-child(even) .cell-content dd.dd_description{
	padding-bottom: 0;
}

.timeline .cell:last-child .cell-content {
	border-top-color: transparent;
	border-bottom-color: transparent;
}

@media only screen
and (max-width : 1024px){
    .timeline_conteneur{
        padding-top: 80px;
        padding-bottom: 80px;
    }
	
	.timeline_header{
		flex-direction: column;
		row-gap: 40px;
		padding-bottom: 40px;
	}
	
	.timeline_navigation{
		gap: 20px;
		justify-content: flex-start;
	}
	
	.timeline_back,
	.timeline_next {
		width: 60px;
		height: 49px;
	}
	
	.timeline .cell .cell-content dt{
        font-size: 30px;
		padding-left: 40px;
		padding-right: 40px;
	}
	
	.timeline .cell .cell-content dd{
		padding-left: 40px;
		padding-right: 40px;
	}
	
	.timeline .cell .cell-content dd.dd_title{
        font-size: 22px;
		padding-bottom: 12px;
		padding-top: 20px;
	}
	
	.timeline .cell .cell-content dd.dd_description{
		padding-bottom: 40px;
	}
	
	.timeline .cell:nth-child(2n) .cell-content dt{
		margin-top: 40px;
	}
}