body{
    background:#111;
    font-family:Arial,sans-serif;
    padding:20px;
    color:white;
    background-image:url("https://picsum.photos/seed/picsum/800/600");
    background-size:cover;
    background-attachment:fixed;
    
}

h1,h2{
    text-align:center;
    text-shadow:2px 2px 4px black;
}

.toolbar{
    background:white;
    padding:20px;
    border-radius:15px;
    margin-bottom:30px;
}

#gallery{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.card-kanji{
    position:relative;
    height:420px;
    background:white;
    border-radius:15px;
    overflow:hidden;
    cursor:pointer;
}

.intro {
    background-color: #fff;
    color:#000;
    border-radius: 10px;
    margin:10px;
    padding:10px;
    border:2px solid #000;
}

.kanji-visible{
    display:flex;
    justify-content:center;
    align-items:center;
    height:100%;
    font-size:110px;
    font-weight:bold;
    color:#222;
}

.overlay{
    position:absolute;
    inset:0;
    background:rgba(0,0,0,0.95);
    color:white;
    opacity:0;
    transition:0.3s;
    padding:15px;
    overflow-y:auto;
}

.card-kanji:hover .overlay,
.card-kanji.active .overlay{
    opacity:1;
}

.info{
    text-align:center;
    line-height:1.4;
}

.kanji{
    font-size:50px;
    margin-bottom:10px;
}

.info div{
    font-size:18px;
}

.jlpt{
    position:absolute;
    top:10px;
    right:10px;
    background:#28a745;
    color:white;
    padding:5px 10px;
    border-radius:10px;
    font-weight:bold;
    z-index:10;
}

#compteur{
    text-align:center;
    margin-bottom:20px;
    font-size:20px;
}

hr{
    border-color:white;
}

.text_titre {
    color:brown;
}