body { margin: 0; font-family: Arial, sans-serif; background-color: #f4f4f4; }

/* Topo Grafite */
header { background-color: #1a1a1a; color: #fff; padding: 15px; display: flex; justify-content: space-between; }
header a { color: white; text-decoration: none; }

/* Wrapper e Menu */
.wrapper { display: flex; }
#menu-lateral { width: 200px; background-color: #2c2c2c; color: white; min-height: 100vh; padding: 20px; }

/* Carrossel Branco */
.box-branco { background: white; border: 2px solid #ddd; padding: 20px; margin: 20px; min-height: 200px; text-align: center; }

/* Vitrine */
#vitrine { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 20px; }
.card { background: white; padding: 15px; border-radius: 5px; }

@media (max-width: 768px) {
    #vitrine { grid-template-columns: 1fr; }
    .wrapper { flex-direction: column; }
    #menu-lateral { width: 100%; min-height: auto; }
}