.catalogue {
    position: fixed;
    top: 190px;
    right: 0;
    width: 48vw;
    height: 100vh;
    overflow-y: scroll;
    background-color: white;

}

.catalogue_titre {
    display: none;
}

.catalogue_display {
    margin-top: 25px;
    padding-left: 16px;
    padding-bottom: 300px;

}

.row_gallery {
    display: flex;
    /* flex-direction: row-reverse; */
    margin: 0;
    flex-wrap: wrap;
}

.book_link {
    position: relative;
    margin-top: 4em;
    margin-bottom: 2em;
    text-align: center;
}

.book_title_block {
    position: relative;
    margin-bottom: 15px;
    display: inline-block;

}

.book_title {
    color: black;
    background-color: white;
    font-family: "BG_Regular";
    font-size: 12px;
    word-wrap: break-word;
    display: inline-block;
    text-decoration: underline;

}

.book_image {
    position: relative;
    background-color: black;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-right: 70px;
    padding-left: 70px;
}

.column-project {
    position: relative;
    flex-basis: 50%;
    flex-shrink: 0;
    max-width: 50%;
    padding-right: 2em;
    padding-left: 1em;
}


.hover_effect .book_hover {
    background-color: black;
    color: white;
}


/*
*MEDIA SCREEN
*/

@media screen and (max-width: 1400px) {

    .book_image {

        padding-top: 19px;
        padding-bottom: 19px;
        padding-right: 60px;
        padding-left: 60px;
    }

}

@media screen and (max-width: 1300px) {

    .book_image {

        padding-top: 18px;
        padding-bottom: 18px;
        padding-right: 60px;
        padding-left: 60px;
    }

}



@media screen and (max-width: 1200px) {

    .book_image {

        padding-top: 17px;
        padding-bottom: 17px;
        padding-right: 50px;
        padding-left: 50px;
    }

}

@media screen and (max-width: 1100px) {

    .book_image {

        padding-top: 16px;
        padding-bottom: 16px;
        padding-right: 45px;
        padding-left: 45px;
    }

}

@media screen and (max-width: 1000px) {

    .book_image {

        padding-top: 14px;
        padding-bottom: 14px;
        padding-right: 40px;
        padding-left: 40px;
    }

}

@media screen and (max-width: 900px) {

    .book_image {

        padding-top: 13px;
        padding-bottom: 13px;
        padding-right: 35px;
        padding-left: 35px;
    }

}

@media screen and (max-width: 834px) {


    .catalogue_titre {
        display: block;
        margin-top: 4em;
        font-family: "BG_Regular";
        font-size: 26px;
        margin-bottom: 1em;
        margin-left: 0.6em;
    }

    .catalogue {
        display: none;

    }

    .book_link {
        margin-top: 2em;
        margin-bottom: 2em;
        text-align: center;
    }

    .catalogue_mobile {
        display: block;
        top: 80px;
        width: 100vw;
        height: 100vh;
        padding-left: 1em;
        padding-right: 1em;


    }

    .book_image {

        padding-top: 1.5em;
        padding-bottom: 1.5em;
        padding-right: 6em;
        padding-left: 6em;
    }

}

@media screen and (max-width: 720px) {


    .book_image {

        padding-top: 1.1em;
        padding-bottom: 1.1em;
        padding-right: 5em;
        padding-left: 5em;
    }


}

@media screen and (max-width: 620px) {


    .book_image {

        padding-top: 0.7em;
        padding-bottom: 0.7em;
        padding-right: 4em;
        padding-left: 4em;
    }


}

@media screen and (max-width: 520px) {

    .catalogue_titre {
        font-size: 24px;
    }

    .column-project {
        flex-basis: 100%;
        max-width: 100%;
        padding-right: 2em;
        padding-left: 1em;
    }


    .book_image {

        padding-top: 1.4em;
        padding-bottom: 1.4em;
        padding-left: 5em;
        padding-right: 7em;
    }

    .book_image img {
        max-width: 70%;
    }

    .book_link {
        margin-top: 2em;
        margin-bottom: 0;

    }

}

@media screen and (max-width: 460px) {


    .book_image {

        padding-top: 1.2em;
        padding-bottom: 1.2em;
        padding-left: 4.5em;
        padding-right: 6.5em;
    }

    .book_image img {
        max-width: 80%;
    }



}

@media screen and (max-width: 420px) {

    .book_image {
        padding-top: 1em;
        padding-bottom: 1em;
        padding-left: 4em;
        padding-right: 6em;
    }

    .book_image img {
        max-width: 90%;
    }

}

@media screen and (max-width: 380px) {

    .book_image {
        padding-top: 0.9em;
        padding-bottom: 0.9em;
        padding-left: 3.5em;
        padding-right: 5.5em;
    }

    .book_image img {
        max-width: 95%;
    }

}

@media screen and (max-width: 320px) {

    .book_image {
        padding-top: 0.5em;
        padding-bottom: 0.5em;
        padding-left: 2.5em;
        padding-right: 4.5em;
    }

    .book_image img {
        max-width: 100%;
    }

}

@media screen and (max-width: 230px) {

    .book_image {
        padding-top: 0.3em;
        padding-bottom: 0.3em;
        padding-left: 2em;
        padding-right: 3em;
    }

    .book_image img {
        max-width: 100%;
    }

}