/* CSS Document */



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

html{
    scroll-behavior:smooth;
}

body{
    font-family:"Gill Sans","Gill Sans MT","Myriad Pro","DejaVu Sans Condensed",Helvetica,Arial,sans-serif;
}

/* =========================
   SECTIONS PLEIN ÉCRAN
   ========================= */

section{
    min-height:100vh;
    display:flex;
	flex-direction: column;
    justify-content:center;
    align-items:center;
	align-content: center;
    padding:40px;
}

/* Alternance noir / blanc */

.noir{
    background:#000;
    color:#fff;
}

.blanc{
    background:#fff;
    color:#000;
}

/* =========================
   EFFET FONDU AU SCROLL
   ========================= */

.fade-section{
    opacity:0;
    transform:translateY(40px);
    transition:
        opacity 1.2s ease,
        transform 1.2s ease;
}

.fade-section.visible{
    opacity:1;
    transform:translateY(0);
}

/* =========================
   CONTENU PAGE D'ACCUEIL
   ========================= */

.container{
    text-align:center;
    width:100%;
	
}

.subtitle{
    font-size:14px;
    color:#9C9C9C;
    letter-spacing:3px;
    text-transform:uppercase;
    margin:14px;
	
}

.logo{
    position:relative;
    display:flex;
    justify-content:center;
    margin-top:0px;
}

.logo-img{
    width:80%;
    max-width:500px;
    display:block;
}

.shine{
    position:absolute;
    inset:0;

    background:linear-gradient(
        70deg,
        transparent 40%,
        rgba(255,245,180,1) 50%,
        transparent 60%
    );

    background-size:200% 100%;
    background-position:-200% 0;

    -webkit-mask-image:url("logo-truck-dor2027.png");
    -webkit-mask-repeat:no-repeat;
    -webkit-mask-position:center;
    -webkit-mask-size:contain;

    mask-image:url("logo-truck-dor2027.png");
    mask-repeat:no-repeat;
    mask-position:center;
    mask-size:contain;

    mix-blend-mode:screen;

    animation:shine 30s linear infinite;
}

@keyframes shine{

    0%{
        background-position:200% 0;
        opacity:0;
    }

    15%{
        background-position:200% 0;
        opacity:0;
    }

    20%{
        opacity:1;
    }

    45%{
        background-position:-200% 0;
        opacity:1;
    }

    50%{
        opacity:0;
        background-position:-200% 0;
    }

    100%{
        opacity:0;
        background-position:-200% 0;
    }
}

/* =========================
   SECTIONS EXEMPLE
   ========================= */

.content{
    text-align:center;
    max-width:900px;
}

.content h2{
    font-size:clamp(2rem,5vw,5rem);
    margin-bottom:20px;
    text-transform:uppercase;
}

.content p{
    font-size:1.2rem;
    line-height:1.6;
}
	
	/* mise en forme des liens shiny */
	
	.gold-link{
    display:inline-block;
    margin-top:30px;
    padding:12px 22px;
    font-size:14px;
    text-transform:uppercase;
    letter-spacing:2px;
    color:#fff;
    text-decoration:none;
    border:1px solid rgba(255,215,120,0.6);
    position:relative;
    overflow:hidden;
    transition:all 0.3s ease;
}

/* texte au-dessus de l'effet */
.gold-link span{
    position:relative;
    z-index:2;
}

/* effet doré qui passe */
.gold-link::before{
    content:"";
    position:absolute;
    top:0;
    left:-150%;
    width:150%;
    height:100%;
    background:linear-gradient(
        120deg,
        transparent 0%,
        rgba(255,215,120,0.2) 30%,
        rgba(255,255,200,0.9) 50%,
        rgba(255,215,120,0.2) 70%,
        transparent 100%
    );
    transform:skewX(-20deg);
    animation:shineGold 3s infinite;
    z-index:1;
}

/* hover */
.gold-link:hover{
    border-color:rgba(255,215,120,1);
    transform:scale(1.05);
}

/* animation */
@keyframes shineGold{
    0%{ left:-160%; }
    50%{ left:160%; }
    100%{ left:160%; }
}

/* version sombre / clair automatique */
.blanc .gold-link{
    color:#000;
}

.noir .gold-link{
    color:#fff;
}

/* =========================
   NAVBAR BASE
   ========================= */

.navbar{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:70px;
    display:flex;
    justify-content:space-around;
    align-items:center;
    padding:0 20px;
    background:rgba(0,0,0,0.9);
    backdrop-filter:blur(10px);
    z-index:9999;
	border-bottom: solid 2px #EFD077;
}

.nav-logo{
    height:50px;
}
	
	.logo-nav-usc{display: block;
	height: 50px;}

/* desktop links */
.nav-links{
    display:flex;
	
	width: 80%;
    gap:30px;
	justify-content: space-around;
    align-items:center;
}

.nav-item{
    position:relative;
   
}

.nav-item a{
    color:white;
    text-decoration:none;
    font-size:13px;
    letter-spacing:2px;
    text-transform:uppercase;
    
}

/* dropdown */
.dropdown{
    position:absolute;
    top:120%;
    left:50%;
    transform:translateX(-50%);
    width:180px;

    background:rgba(0,0,0,0.95);
    backdrop-filter:blur(12px);

    border:1px solid rgba(255,215,120,0.25);

    opacity:0;
    visibility:hidden;
    transition:0.25s;
}

.nav-item:hover .dropdown{
    opacity:1;
    visibility:visible;
    
}

.dropdown a{
    display:block;
    padding:10px;
    text-align:center;
}

/* hamburger */
.menu-toggle{
    display:none;
    font-size:28px;
    color:white;
    cursor:pointer;
}
	
	@media (max-width: 768px){
    .blanc .content iframe{
        width:100%;
    }

    .blanc .content div[style*="display:flex"]{
        flex-direction:column;
    }
}


/* =========================
   MOBILE
   ========================= */

@media (max-width:768px){
	
	section{
    padding:10px;
		padding-top: 40px;
		padding-bottom: 40px;
}
	
	.navbar{border-bottom: solid 0px #EFD077;
	justify-content: space-between;
	
	}
	
		.logo-nav-usc{display: none;
	height: 50px;}

    .menu-toggle{
        display:block;
    }

    .nav-links{
        position:absolute;
        top:70px;
        left:0;
        width:100%;
        flex-direction:column;
        background:rgba(0,0,0,0.95);
border: 1px solid #EFD077;
        max-height:0;
        overflow:hidden;
        transition:0.4s ease;
    }

    .nav-links.active{
        max-height:700px;
        padding:20px 0;
    }

    .nav-item{
        text-align:center;
        padding:10px 0;
    }

    .dropdown{
        position:static;
        transform:none;
        width:100%;
        background:transparent;
        border:none;
        opacity:1;
        visibility:visible;
    }

    .dropdown a{
        color:#ccc;
        font-size:12px;
    }
	
	}
	
	
		.hero-video {
    position: relative;
        width:100vw;
            
    margin-left:calc(50% - 50vw);
    height: 400px; /* à ajuster */
    overflow: hidden;
}

.hero-video video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
   
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
}