.parent {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(3, 1fr);
    grid-column-gap: 2px;
    grid-row-gap: 2px;
    max-height: 75vh;
}

.div1 { grid-area: 1 / 1 / 4 / 4; }
.div2 { grid-area: 1 / 4 / 3 / 6; }
.div3 { grid-area: 3 / 4 / 4 / 5; }
.div4 { grid-area: 3 / 5 / 4 / 6; }

img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.parent > div {
    position: relative;
    overflow: hidden;
}

.overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: 20px;

    background: linear-gradient(
        to top,
        rgba(0,0,0,0.75),
        rgba(0,0,0,0)
    );

    opacity: 0;
    transition: opacity 0.3s ease;
}

.overlay p {
    color: white;
    margin: 0;
    font-size: 18px;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.parent > div:hover .overlay {
    opacity: 1;
}

.parent > div:hover .overlay p {
    transform: translateY(0);
}

.banniere {
    height: 400px;              /* hauteur de la bannière */
    background-size: cover;     /* effet image coupée */
    background-position: center;
    background-repeat: no-repeat;

    display: flex;
    align-items: center;
    justify-content: center;

    position: relative;
}

/* léger voile sombre sur toute l'image */
.banniere::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
}

/* texte */
.texte-banniere {
    position: relative; /* important pour passer au-dessus du voile */
    color: white;
    font-size: 3rem;
    font-weight: bold;
    text-align: center;
}