#sec-3, #sec-4 {
    display: flex;
    justify-content: space-around;
    align-items: center;
    min-height: 65svh;
}

#sec-4 * {
    text-align: justify;
}

#sec-3 {
    /* Gradient: Start bei #3a3a3a (passt zu sec-2 Ende hell-Teil) */
    background: linear-gradient(180deg, #3a3a3a 0%, #2f2f2f 100%);
    text-align: justify;
}

#sec-4 {
    /* Nahtlos an sec-3 (ein großer Gradient von #2f2f2f weiter nach dunkel) */
    background: linear-gradient(180deg, #2f2f2f 0%, #1a1a1a 100%);
}

#sec-3-content, #sec-4-content {
    max-width: 35rem;
    margin-left: 5rem;
    margin-right: 5rem;
    margin-bottom: 3rem;
}

#sec-3-img, #sec-4-img {
    max-width: 16rem;
}

#sec-3-img img , #sec-4-img img {
    width: 100%;
}

@media(width <= 900px) {
    #sec-3, #sec-4 {
        min-height: 50svh;
    }
}

@media(width <= 670px) {
    #sec-3, #sec-4 {
        min-height: 65svh;
    }

    #sec-3, #sec-4 * {
        text-align: center;
    }

    #sec-3 {
        flex-direction: column;
    }

    #sec-4 {
        flex-direction: column-reverse;
    }

    #sec-3-img, #sec-4-img {
        margin-bottom: 4rem;
    }

    #sec-3-content, #sec-4-content {
        max-width: 30rem;
    }
}