html{
    box-sizing: border-box;
    overflow: auto;
    width: 100vw;

}
/* les zone de travail implique les diffrente section*/
.zone{

    width: 100%;
    height: 400px;
   
    margin: 0%;
    position: relative;
}
section{
    width: 100%;
}
/* start initiating section */

/* mettre la video en  fon de baniere*/

#background-video{
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    height: 400px;
    background-color: black;

    /* positionnement */
    object-fit: cover;
    position:absolute;
    /* absolute => garde sa place */
      /* fixed => reste tout le long derriere*/
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: -1;

}
/* set up the main header for the page */


header{
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    height: 400px;

}

/* parti logo*/
header div img{
    height: 80px;
    width: 80px;
    border-radius: 35px;
    margin-top: 15px;
}

header div h1{
    color: white;
    font-size: 76px;
    text-align: center;

}

/* parti nav bar */
nav{
    height: 100px;
    display: flex;
    justify-content : flex-end;
    align-items : flex-end;
}
ul{
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    align-items: flex-end;
    color: aquamarine;
    list-style: none;
    gap: 0.5em;
}
li{
    border: 1px solid white;
    border-radius: 15px;
}
header .nav {
    text-decoration: none;
    padding: 10px;
    color: white;
    font-size: 20px;
    font-weight: bold;

}

/* parti mission text */

.aboutUs{
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    padding: 50px;
    gap: 1em;
    height: 350px;
    width: 100%;
    flex: 0 1 1;
    /*position: absolute;*/
    /*z-index: -1;*/
    
}
span{
    color: rgb(61, 145, 223);
}

.mission.text.gros {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 34px;
    font-weight: bold;



}

.mission.text{
    width: 50%;
    height: 350px;
    
}

/* section help us*/
.helpUs{
    background-color: rgb(61, 145, 223);
    width: 100%;

}
/* section  apropos*/
.apropos{

    background-color: rgb(249, 249, 250);

}
/* section article */
.Article{
    background-color: rgb(61, 145, 223);


}
.container{
    padding-top: 30px;
    display: flex;
    justify-content: center;
    gap: 2em;

}
.box{
    width: 150px;
    height: 150px;
    border: 4px solid #d8d8da;
    border-radius: 15px;
    background-color: white ;
}
.info{
    margin-top: 15px;
    width: 150px;
    text-align: center;
    color: white;
    font-weight: bold;
}

/*section don */
.don{
    background-color: rgb(245, 248, 250);

}

/* section contact*/
.contact{
    background-color: rgb(61, 145, 223);


}


/* parti footer */
footer{
    background-color: #1f2937 ;
    color: white;
    padding: 16px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
}