/*
#DECK_atome {
    z-index: 5000;
    position: fixed;
    top: 40px;
    left: 0;
    background-color: #570735ee;
    border: transparent;
    max-width: 15px;
    margin-left: 0;
    padding-left: 10px;
    height: auto;
    overflow-x: hidden;
    text-wrap: nowrap;
}


#DECK_atome:hover {
    max-width: 20rem;
    background-color: #570735ee;
}
*/
#PAGE_atome {
    z-index: 1000;
    position: relative;
    display: block;
    top: 0;
    width:100%;
    height: 100%;
    border: transparent;
    background-color: transparent;
    margin: 0 1rem 0 25px;
    padding: 0 2rem;
    
    /*background-color: #F5F5F5;    /* Gris très clair */
    /*background-color: #EAEAEA;    /* Gris légèrement plus foncé */
    background-color: #DDD8C4;    /* Beige doux */
    
    line-height: 1.5;


}
#PAGE_atome ul {
        list-style-type: disc;
}


#PAGE_atome h1 {
    font-weight: bold;
    text-align: center;
}

#PAGE_atome h3 {
    font-weight: bold;
}

#CANVAS_atome_dessin1 {
    z-index: 2000;
    position: absolute;
    display: block;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    border: none;
    margin: auto;
    padding: auto;
    background-color: white;
}


span.proton_texte {
    color: red;
    font-weight: bold;
}

span.neutron_texte {
    color: blue;
    font-weight: bold;
}
span.electron_texte{
    color: black;
    font-weight: bold;
}

.table_atome_tailles td{
    border: 2px solid #333;
}

img.atome{
    width: 500px;
}

.flex_centrer_verticalement_row{
    width: 100%;
    display: flex; 
    justify-content:left;        /* Espacement égal entre les colonnes */
    align-items: center;
    background-color: transparent;        /* Fond léger */
}

.flex_centrer_verticalement_column{
    width: 40%;           /* Largeur de chaque colonne */
    text-align: center;
}