* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    width: 100%;
}

.fullscreen-bg {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    overflow: hidden;
    z-index: -1; /* Put it behind other content */
}

.fullscreen-img {
    position: absolute;
    top: 50%;
    left: 50%;
    min-height: 100%;
    min-width: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover; /* Optional: crops the image to fill without distortion */
}