.hero {
    width: 100%;
    height: 500px;
    overflow: hidden;
    position: relative;
    margin-top: 100px; /* empurra a hero para baixo da navbar */
}

.hero img.hero-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}