/* la nav bar */
header {
    z-index: 1;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    transition: top 0.3s ease;

}

header p {
    position: absolute;
    top: 35px;
    right: 52%;
    z-index: 999;
    color: var(--ter-color);
    font-size: 120%;
}
header nav {
    justify-content: space-between;
}
header nav ul {
    padding: 0;
    margin: 0;
}

header nav li {
    display: inline-block;
    padding: 3px;
    margin: var(--espacement-en-bas-nav) var(--espacement-nav);
    margin-bottom: 0;

    width: var(--longeur-boutton-nav);
    background-color: var(--main-color);
    transition-duration: 0.4s;

    box-shadow: 2px 2px 1px 1px var(--text-color);    
}

header nav li:hover{
    background-color: var(--text-color);
    box-shadow: 20px 2px 1px 1px var(--ter-color);
}

header nav li:hover a {
    color: var(--sec-color);
}

header{
    /*background-color: var(--header-color);*/
    text-align: center;
    overflow: hidden;
    z-index: 1;
    line-height:initial;
    /*background: linear-gradient(to top, var(--header-color1), 96%, var(--header-color2));*/
    
}

header::before{
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    /* background-image:  url('images/img_bg_header_2.jpg'); */
    background-color: var(--sec-color);
    opacity: 1;
    transition: opacity 1s ease;
    z-index: -1; /* derrière le contenu du header */
    background-position-y: 10%;
    background-size: 105%;
    filter: blur(5px);
}
/*
header:hover::before{
    background-position-y: 85%;
}
*/

#main-header.fade-bg::before {
    opacity: 0;
  }
#main-header.fade-bg-in::before {
    opacity: 1;

  }
#main-header.new-bg{
    background-color: black;
    background-image: url(images/header_video-1.gif);
    background-position-y: -90px;
    background-position-x: 10%;
    background-repeat: no-repeat;
}


@media only screen and (max-width: 1300px) {
    #main-header.new-bg{
        background-image: none;
    }

    header{
        width: 100%;
    }

    header p{
        display: none;
    }

    header nav li {
        padding: 1px;
        margin: 5px;
        margin-top: 1em;

        width: 8em;
        background-color: var(--main-color);
        transition-duration: 0.4s;

        box-shadow: 2px 2px 1px 1px var(--text-color);    
    }
    
}