body {
    margin: 0 auto;
}

header.header { 
    display: flex;
    align-items: center;
    background-color: white;;
}


.big-title {
    color: white;
    font-size: clamp(24px, 5vw, 50px);
    padding: 20px 50px;
}


.header img {
    height: 50px;       /* fixe la hauteur */
    width: auto;        /* garde les proportions */
    object-fit: contain; /* évite toute déformation */
}


section.top-page { 
    background: url('../image/2.jpg');
    background-size: cover;
    height: 80vh;
    padding: 30px;
}

.big-title {
    color: white;
    font-size: clamp(24px, 5vw, 50px);
    padding: 20px 50px;
}