html, body {
    padding:0%;
    margin: 0%;
    font-family: Cambria, serif;
    min-height: 100vh;
}

body {
    display: flex;
    flex-direction: column;
}

header {
    background-color: #555555; /* gris foncé un peu plus clair */
    color: #fafafa; /* gris très clair */
    padding: 0.5em;
}

header h1 {
    text-align: center;
}


header ul {
    list-style: none;
    display: flex;
    margin:2em;
    padding: 0%;
    justify-content: center;
    gap: 5%
}

header a {
    color: #fafafa;
    font-weight:800;
    text-decoration: none;
}

header a:hover {
    text-decoration: underline;
}

main {
    margin:0;
    background-color: #fbfbfb; /* gris très pâle, plus clair */
    padding: 1.5em;
    color: #555555;
    flex:1;
}

.welcome {
    font-size: large;
    display: flex;
    flex-direction: column;
    text-align: center;
    margin-bottom: 1em;
}

.welcome h2 {
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 1em;
}

/* Partie non écrite par moi */
.welcome h2::before,
.welcome h2::after {
    content: '';
    flex-grow: 1;
    height: 3px;
    background-color: #555555;
}
/* Fin partie non écrite par moi */

.welcome p {
    margin-top: 1em;
}

.galerie{
    column-count: 3;
    column-gap: 12px;
    max-width: 2000px;
    margin: 0;
    margin-bottom: 1em; 
    padding: 0 12px;
}

.galerie figure { 
    margin: 0 0 12px 0;
    overflow: hidden;
}

.galerie img{
    width: 100%; 
    height: auto; 
    display: block;
    transition: transform 0.4s ease-in-out;
}

.galerie img:hover{
    transform: scale(1.05);
}

footer{
    margin: 0;
    padding: 1em;
    background-color: #c8c8c8; /* gris moyen plus clair */
    display: flex;
    justify-content: space-between;
    align-items:center;
    color: #fafafa;
}

.footer-left{
    margin-left: 1em;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em 3em;  
}

.footer-left a {
    text-decoration: none;
    color: #fafafa;
}

.footer-left a:hover{
    color: #555555;
    transition-duration: 0.5s;
}

.footer-right{
    margin-right: 1em;
}

@media (max-width: 1000px) {
    .galerie {
        column-count: 2;
    }
    html{font-size: 1em;}
}

@media (max-width: 600px) {
    .galerie {
        column-count: 1;
    }
    html{font-size: 0.8em;}
}