.help{
    height: 90%;
    width: 70%; 
    position: absolute;
    top: 5%;
    left: 15%; 
    border: none;    
}
.help-img , .good-luck-img{
    width: 150px;
}
.icon-help {
    width: 45px;
    height: 45px;
    margin: -10px 5px;
    border-radius: 10px;
}
.book {
    transition: opacity 0.4s 0.2s;
    margin: 25px 0  ;   
    border-radius: 15px;
}
.pages {
    width: 90%;
    height:70vh;
    position: relative;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    border-radius: 10px;
    background-color: rgb(38, 25, 39);
    border: 7px solid rgb(4, 9, 28);  
}
.page {
    background: left top no-repeat;
    background-size: cover;
    float: none;
    clear: none;
    margin: 0;
    position: absolute;
    padding: 20px;
    top: 0;
    width: 50%;
    height: 68vh;
    transform-origin: 0 0;
    transition: transform 1.4s;
    transform-style: preserve-3d;
    cursor: pointer;
    -webkit-backface-visibility: hidden;
    -webkit-user-select: none;
    border: 1px solid var(--border-color);
    background-color: var(--page-help-color);
}
.page:first-child , .page:last-child{
    background-color: rgb(237, 87, 0) !important;
    text-align: center;
    padding-top: 50px;
}
.page:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.7s;
    z-index: 2;
}
.page:nth-child(odd) {
    pointer-events: all;
    transform: rotateY(0deg);
    right: 0;
    border-radius: 0 4px 4px 0;
    background-position: right top;
    background-image: linear-gradient(to right, rgba(0,0,0,.15) 0%, rgba(0,0,0,0) 10%);
}
.page:nth-child(odd):hover {transform: rotateY(-15deg); }
.page:nth-child(odd):hover:before { background: rgba(0, 0, 0, 0.03);}
.page:nth-child(odd):before {background: rgba(0, 0, 0, 0); }
.page:nth-child(even) {
    pointer-events: none;
    transform: rotateY(180deg);
    transform-origin: 100% 0;
    left: 0;
    clear: both;
    border-radius: 4px 0 0 4px;
    border-color: black;
    background-image: linear-gradient(to left, rgba(0,0,0,.12) 0%, rgba(0,0,0,0) 10%);
}
.page:nth-child(even):before {background: rgba(0, 0, 0, 0.2);}
.page.grabbing {transition: none;}
.page.flipped:nth-child(odd) {
    pointer-events: none;
    transform: rotateY(-180deg);
}
.page.flipped:nth-child(odd):before {background: rgba(0, 0, 0, 0.2);}
.page.flipped:nth-child(even) {
    pointer-events: all;
    transform: rotateY(0deg);
}
.page.flipped:nth-child(even):hover {transform: rotateY(15deg); }
.page.flipped:nth-child(even):hover:before {background: rgba(0, 0, 0, 0.03);}
.page.flipped:nth-child(even):before {background: rgba(0, 0, 0, 0); }
  

.close-help{
    position: relative;
    top: 50px;
    right:50px;
    background-color:var(--close-btn-color) !important;
    padding:7px 10px;
    font-size: 20px;
    border-radius: 50%;
    border: 3px solid var(--texte-color);
    color:var(--texte-color);
    cursor: pointer;
    float:right;
    z-index: 100;
    font-family: night-machine;
}