body {
    margin : 0px;
    background-color : black;
    
}

.Video {
    position : relative;
    display : flex;
    z-index : 1;
    width : 100%;
    height : 40em;
    background-color : white;
    align-items : center;
    
}

.Video h1 {
    margin-left : 80px;
    position: absolute;
    z-index: 2;
}

.bandeau {
    position : absolute;
    display : flex;
    z-index : 2;
    justify-content : space-between;
    color : white;
    font-family : Helvetica;
    font-size : 20px;
    height : 680px;
    width : 100%;
    margin-right : 0px;
    margin-left : 0px;
    background : linear-gradient(to right,black,transparent);
    letter-spacing : 1px;
}

.bandeau p {
    margin-right : 28px;
    margin-left : 28px;
    font-family : Helvetica;
    height : 25px;
}

.bandeau p:hover {
    text-decoration : underline;
}

.ligne {
    position : absolute;
    z-index : 4;
    height: 0.5px; 
    background-color: rgb(74, 74, 74); 
    margin-top : 12px;
    margin-left : 23px;
    margin-right : auto;
    width: 96%; 
}

h1 {
    color : white;
    font-family : Helvetica;
    font-size : 4em;
    margin-left : 80px;
    margin-top : -300px;
    position: absolute;
    z-index: 3;
}

.video-fond {
    width : 100%;
}

.degrade {
    position : absolute;
    z-index : 2;
    height : 35px; 
    width : 100%;
    background : linear-gradient(to top,black,transparent); 
    
}

.Modele {
    display : flex;             
    justify-content : center;   
    align-items : center;       
    margin-top : 150px; 
    margin-bottom : 20px;       
    height : auto;     
    width : 100%;               
}

.Modele img {
    height : 70px;              
    width : auto;
    opacity : 0.9;               
}

.Modele img:hover {
    opacity : 1;
}

.profil {
    display : flex;
    flex-direction : column;             
    justify-content : center;   
    align-items : center;        
    margin-bottom : 0px;   
    margin-top : 80px;    
    background : linear-gradient(to top,#2A2A2A,black);
    
}

.profil img {
    width : 52em;
    height : auto;
}

.nom {
    margin-top : -90px;
    text-align : center;
    color : #5A5A5A;
    background : linear-gradient(to top,black,#2A2A2A);
    height : 150px;
    font-family : Helvetica;
    font-size : 4em;
}

.quart {
    margin-top : 80px;
    margin-left : 60px;
    border-radius : 20px 20px;
    background-color : gray;  
    height : 35em;
    width : 27em;
}


.quart img {
    margin-top : 80px;
    margin-left : -55px;
    width : 34em;
    height : 25em;
    transform: rotate(90deg);
    border-radius : 20px 20px;
    filter: blur(0.5px);
}

.Fond1 img{
    position : relative;
    z-index : 1;
    filter: blur(5px);
    width : 100%;
    height : auto;
}

.banniere:hover {
    transform: scale(1.02);
    opacity: 1;
}

.banniere {
    display : flex;
    flex-direction : row;
    position : relative;
    z-index : 2;
    margin-top : 70px;
    width : 100%;
    height : 30em;
    background-color : #232222;
    opacity: 0.5;
    transition: transform 0.5s ease; /* transition de 0,5 seconde qui est lent -> rapide -> lent (ease) pour que le :hover ne soit pas instantané */
}

.degrade2 {
    display : flex;
    position : relative;
    z-index : 2;
    width : 50%;
    background : linear-gradient(to right,black,transparent);
    opacity: 0.7;
    
}


.banniere img {
    display : flex;
    position : absolute;
    z-index : 1;
    height : 30em;
    width : auto;
}

.txt {
    display : flex;
    flex-direction : column;
    margin-left : 120px;
    margin-top : 30px;
    margin-bottom : 30px;
    width : 30em;
    color : white;
}

.TITRE {
    text-align : center;
    font-family : Helvetica;
    font-size : 50px;
}

.txt p {
    text-align : center;
    font-family : Helvetica;
}

.txt button {
    border: solid red;
    color: white;
    background-color : transparent;
    padding: 15px 32px;
    margin-top: 20px;    
    margin-right: auto;  
    margin-left: 270px;   
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
}

.bouton1:hover {
    border : solid red;
    color: white;
    box-shadow: 0 0px 10px blue;
}

.categorie {
    display : flex;
    flex-direction: row;
    justify-content: space-around;
    margin-top: 150px;
    margin-bottom: 150px;
    height: 30em;
}

.categorie a {
    height: 100%;
    text-decoration: none;
    text-shadow: 0 0px 10px rgb(0, 0, 0);
}

.categorie1 {
    border: solid rgb(0, 0, 0);
    width: 25em;
    border-radius: 50px 50px;
    color : white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Helvetica;
    font-size: 1.2em;
    background-image: url("image/config.png");
    height: 25em;
    transition: transform 0.5s ease;
}

.categorie1:hover {
    transform: scale(1.02);
    box-shadow: 0 0px 15px white;
}

.categorie2 {
    border: solid rgb(0, 0, 0);
    width: 25em;
    border-radius: 50px 50px;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Helvetica;
    font-size: 1.2em;
    background-image: url("image/catalogue.jpg");
    height: 25em;
    transition: transform 0.5s ease;
}

.categorie2:hover {
    transform: scale(1.02);
    box-shadow: 0 0px 15px white;
}

.bandeau-fin {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    color: rgb(136, 136, 136);
    background-color: #5A5A5A;
    height : 25em;
    width: 100%;
    font-family: Helvetica;
    font-size: 1.1em;
}

#degrade3 {
    position: absolute;
    width: 100%;
    height: 25em;
    z-index: 3;
    opacity: 0.85;
    background: linear-gradient(to right,black,transparent), linear-gradient(to left, black, transparent) ;
}

.TEXTE1 {
    margin-top: 50px;
    z-index: 4;
    display: flex;
    flex-direction: column;
    font-family: Helvetica;
    border-top : solid 1px rgb(67, 0, 211);
}

.TEXTE2 {
    margin-top: 50px;
    z-index: 4;
    display: flex;
    flex-direction: column;
    font-family: Helvetica;
    border-top: solid 1px red;
}

.TEXTE3 {
    margin-top: 380px;
    position: absolute;
    z-index: 5;
    height: 50px;
    width: 100%;
    display: flex;
    justify-content: center;
    font-family: Helvetica;
    border-top: solid 1px rgb(72, 72, 72);
    font-size: 13px;
    color: rgb(58, 58, 58);
}

.titre {
    font-size: 1.2em;
    text-decoration: underline;
}

.bandeau-fin a {
    color : rgb(136, 136, 136);
}

/* Écrans >= 1450px */
@media (min-width: 1450px) {
    .Video {
        height: 45em;
    }

    .Video h1 {
        margin-left: 100px;
        font-size: 4.5em;
    }

    .bandeau {
        font-size: 22px;
        height: 700px;
    }

    .Modele {
        margin-top: 180px;
    }

    .Modele img {
        height: 85px;
    }

    .profil {
        margin-top: 100px;
    }

    .profil img {
        width: 60em;
    }

    .nom {
        font-size: 4.5em;
    }

    .quart {
        width: 30em;
        height: 38em;
    }

    .quart img {
        margin-top: 100px;
        width: 36em;
        height: 28em;
    }

    .banniere {
        height: 32em;
    }

    .banniere img {
        height: 32em;
    }

    .txt {
        margin-left: 140px;
        font-size: 1.2em;
    }

    .txt button {
        padding: 16px 36px;
        font-size: 17px;
    }

    .categorie {
        margin-top: 180px;
        margin-bottom: 180px;
    }

    .categorie1, .categorie2 {
        width: 27em;
        height: 27em;
    }

    .bandeau-fin {
        height: 28em;
    }

    #degrade3 {
        height: 28em;
    }

    .TEXTE3 {
        margin-top: 400px;
    }

    .degrade {
        height: 40px;
    }
}

/* Écrans >= 1920px (Full HD) */
@media (min-width: 1920px) {
    .Video {
        height: 50em;
    }

    .Video h1 {
        margin-left: 120px;
        font-size: 5.5em;
    }

    .bandeau {
        font-size: 24px;
        height: 750px;
    }

    .Modele {
        margin-top: 200px;
    }

    .Modele img {
        height: 100px;
    }

    .profil {
        margin-top: 120px;
    }

    .profil img {
        width: 70em;
    }

    .nom {
        font-size: 5em;
    }

    .quart {
        width: 33em;
        height: 42em;
    }

    .quart img {
        margin-top: 120px;
        width: 38em;
        height: 30em;
    }

    .banniere {
        height: 35em;
    }

    .banniere img {
        height: 35em;
    }

    .txt {
        margin-left: 160px;
        font-size: 1.4em;
    }

    .txt button {
        padding: 18px 40px;
        font-size: 18px;
    }

    .categorie {
        margin-top: 200px;
        margin-bottom: 200px;
    }

    .categorie1, .categorie2 {
        width: 30em;
        height: 30em;
    }

    .bandeau-fin {
        height: 30em;
    }

    #degrade3 {
        height: 30em;
    }

    .TEXTE3 {
        margin-top: 420px;
    }

    .degrade {
        height: 45px;
    }
}

/* Écrans >= 2560px (2K/4K) */
@media (min-width: 2560px) {
    .Video {
        height: 60em;
    }

    .Video h1 {
        margin-left: 150px;
        font-size: 7em;
    }

    .bandeau {
        font-size: 28px;
        height: 900px;
    }

    .Modele {
        margin-top: 250px;
    }

    .Modele img {
        height: 120px;
    }

    .profil {
        margin-top: 150px;
    }

    .profil img {
        width: 90em;
    }

    .nom {
        font-size: 6em;
    }

    .quart {
        width: 40em;
        height: 50em;
    }

    .quart img {
        margin-top: 150px;
        width: 45em;
        height: 35em;
    }

    .banniere {
        height: 40em;
    }

    .banniere img {
        height: 40em;
    }

    .txt {
        margin-left: 200px;
        font-size: 1.6em;
    }

    .txt button {
        padding: 22px 50px;
        font-size: 20px;
    }

    .categorie {
        margin-top: 250px;
        margin-bottom: 250px;
    }

    .categorie1, .categorie2 {
        width: 35em;
        height: 35em;
    }

    .bandeau-fin {
        height: 35em;
    }

    #degrade3 {
        height: 35em;
    }

    .TEXTE3 {
        margin-top: 500px;
    }

    .degrade {
        height: 50px;
    }
}