.hero {
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../images/Affiche.jpg');
            background-size: cover;
            background-position: center;
        }
        .portfolio-item {
            transition: transform 0.3s ease;
        }
        .portfolio-item:hover {
            transform: scale(1.03);
        }