section {
  height: 80%;
  width: 100%;
  text-align: center;
  align-content: center;
}

h1 {
  font-size: 4em;
}
h2 {
  font-weight: 100;
  padding-bottom: 20px;
}

#a-go_down {
    text-decoration: none;
    color: white;
}

#ic-go_down {
    font-size: 3em;
}

#anchor-topics-section {
    height: 95%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.card:first-of-type{
    background: rgb(45,100,185);
    background: linear-gradient(140deg, rgba(45,100,185,1) 0%, rgba(5,135,160,1) 100%);
}

.card:nth-of-type(2){
    background: rgb(130,65,185);
    background: linear-gradient(140deg, rgba(130,65,185,1) 0%, rgba(175,55,120,1) 100%);
}

.card:nth-of-type(3){
    background: rgb(185,90,15);
    background: linear-gradient(140deg, rgba(185,90,15,1) 0%, rgba(175,135,6,1) 100%);
}

.card {
    padding: 8px;
    width: 18vw;
    height: 16vw;
    display: flex;
    margin: 40px;
    border-radius: 16px;
    flex-direction: column;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.6s;
    text-decoration: none;
    color: white;
}

.card:hover {
    transform: rotateZ(-2deg) scale(1.05);
}



.card > i{
    font-size: 3.3vw;
    margin-bottom: 15px;
}

.card > h3{
    font-size: 1.1vw;
    padding: 0px 30px 0px 30px;
    margin-bottom: 10px;
}

.card > p{
    font-size: 0.9vw;
    padding: 0px 30px 0px 30px;
}

@media screen and (max-width: 700px) {
    #anchor-topics-section {
        flex-direction: column;
    }
    .card{
        width: 80%;
        height: fit-content;
        padding: 16px 0px 16px 0px;
        margin: 10px;
    }
    .card:hover {
        transform: scale(1.05);
    }
    h1 {
        font-size: 9vw;
    }
    h2 {
        font-size: 3.5vw;
    }
    #ic-go_down {
        font-size: 7.5vw;
    }

    .card > i{
        font-size: 1.7em;
        margin-bottom: 2px;
    }
    
    .card > h3{
        font-size: 1em;
        padding: 0px 30px 0px 30px;
        margin-bottom: 5px;
    }
    
    .card > p{
        font-size: 0.8em;
        padding: 0px 30px 0px 30px;
    }
}

body {
    position: relative;
}

body::after {
    content: ' ';
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    opacity: 0.1;
    backdrop-filter: blur(30px);
    background-image: url('../images/background.jpg');
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-position: 50% 0;
    background-size: cover;
    pointer-events: none; /* Rend l'élément non interactif */
  }

/*SplashScreen*/

.intro {
    position: fixed;
    z-index: 10;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    background-color: #050505;
    transition: 1s;
}

.logo-header {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ffffff;
}

.logo {
    position: relative;
    display: inline-block;
    bottom: -20px;
    opacity: 0;
}

.logo.active {
    bottom: 0;
    opacity: 1;
    transition: ease-in-out 0.5s;
}

.logo.fade {
    bottom: 150px;
    opacity: 0;
    transition: ease-in-out 0.5s;
}