.hero-viewport-block {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 140px 24px 80px 24px;
    overflow: hidden; 
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0; 
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 0;
    transition: opacity 1.2s ease-in-out; 
}

.hero-slide.active {
    opacity: 1;
}