body {
    margin: 0;
    padding: 0;
    background-color: black;
    position: relative;
    overflow-x: hidden;
}


h1 {
    font-family: 'Orbitron', sans-serif;
    text-align: center;
    font-size: 4.5em;
    color: red;
    margin-top: 150px;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.8);
    position: relative;
    z-index: 2;
}

.fusee {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
}

nav {
    background: rgba(0,0,0,0.8);
    padding: 15px 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    text-align: center;
    z-index: 3;
}

nav ul { 
	list-style: none;
	padding: 0;
	margin: 0; 
}
nav ul li { 
	display: inline;
	margin: 0 20px; 
}
nav ul li a {
    color: white; 
	text-decoration: none; 
	font-size: 1.5em; 
	font-weight: bold;
    position: relative; 
	transition: color 0.3s ease-in-out;
}
nav ul li a::after {
    content:"";
	position:absolute; 
	left:0; 
	bottom:-5px; 
	width:100%; 
	height:3px;
    background:red; 
	transform: scaleX(0);
	transform-origin:right;
	transition: transform 0.3s ease-in-out;
}
nav ul li a:hover::after { 
	transform: scaleX(1); 
	transform-origin:left; 
}
nav ul li a:hover { 
	color:red; 
}
nav ul li a i { 
	margin-right:8px;
	font-size:1.2em; 
	vertical-align: middle;
}

.lancement-container {
    padding: 100px 50px;
    display: flex;
    flex-direction: column;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.phase {
    border: 2px solid rgba(255,255,255,0.4);
    background-color: rgba(0,0,0,0.2);
    backdrop-filter: blur(8px);
    border-radius: 15px;
    padding: 20px;
    line-height: 1.6em;
    font-size: 1.2em;
    color: white;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    position: relative;
    z-index: 2;
}

#stars { 
	position: fixed; 
	top:0; 
	left:0; 
	width:100%; 
	
	height:100%; 
	z-index:0; 
	pointer-events:none; 
}