body {
    height: 100%;
    width: 100%;
    margin: auto;
    align-items: center;
    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
    flex-direction: column;
    margin: 0;
    background:
        linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)),
        url("/bilder/pixaby_image_background1.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-position: top;
}

:root {
    /*Header*/
    --header-flow: linear-gradient(135deg, #56a6d4, #93b1c1);
    --footer-flow: linear-gradient(135deg, #dfdfd5, #ebe5c5);
    --wilko_txt_color: rgb(41, 41, 41);
    --sicherheit: rgb(255, 255, 255);
    /*Haupt Teil*/
    --imprint_bg: rgba(255, 255, 255, 0.795);
    --imprint_txt: black;
    /*Unten*/
    --footer_txt: rgb(27, 27, 27);
}

body.dark {
    background:
        linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
        url("/bilder/pixaby_image_background1.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-position: top;
    /*Header*/
    --header-flow: linear-gradient(135deg, #012e0a, #161d18);
    --footer-flow: linear-gradient(135deg, #181818, #07051f);
    --wilko_txt_color: rgb(228, 228, 228);
    --sicherheit: rgb(182, 182, 182);
    /*Haupt Teil*/
    --imprint_bg: rgba(45, 45, 45, 0.813);
    --imprint_txt: rgb(255, 255, 255);
    /*Unten*/
    --footer_txt: rgb(230, 230, 230);
}

header {
    background: var(--header-flow);
    display: flex;
    justify-content: flex-start;
    align-items: center;
    height: 60px;
}

.logo {
    width: 150px;
    margin-left: 25px;
    transition: all 0.5s ease;
}

.wilko {
    font-size: 23px;
    margin: 0;
    margin-left: 20px;
    color: var(--wilko_txt_color);
    transition: all 0.5s ease;
}

.sicherheit {
    color: var(--sicherheit);
    font-size: 23px;
    margin: 0;
    transition: all 0.5s ease;
}

.theme {
    margin-left: auto;
    margin-right: 10dvb;
    cursor: pointer;
    transition: all 0.5s ease;
}

.data {
    background: var(--imprint_bg);
    margin-top: 20dvh;
    color: var(--imprint_txt);
    transition: all 0.5s ease;
    border-radius: 20px;
    margin-left: 10%;
    margin-right: 10%;
    padding-top: 20px;
    padding-bottom: 20px;
    animation: flyIn 2s ease-out;
}

.data ul {
    list-style: none;
}

footer {
    color: var(--footer_txt);
    padding: 20px;
    background: var(--footer-flow);
    margin-top: 20dvh;
    transition: all 0.5s ease;
}

footer a {
    color: var(--footer_txt);
    transition: all 0.5s ease;
    text-decoration: none;
    padding: 5px;
    border-radius: 5px;
    position: relative;
    display: inline-block;
}

footer a:hover {
    transform: translateY(-3px);
}

footer a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: #d4af37;
    transition: .3s;
}

footer a:hover::after {
    width: 100%;
}

@keyframes flyIn {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width:900px) {

    .split-section {
        flex-direction: column;
    }

    .split-text,
    .split-image {
        width: 100%;
    }

    .split-image {
        height: 400px;
    }

}

@media (max-width: 600px) {
    header {
        background: var(--header-flow);
        display: flex;
        justify-content: flex-start;
        align-items: center;
        height: 60px;
    }

    .logo {
        width: 130px;
        margin-left: 20px;
    }

    .wilko {
        font-size: 18px;
    }

    .sicherheit {
        font-size: 18px;
        display: block;
    }

    .theme {
        margin-right: 5dvb;
    }

    main {
        font-size: 10px;
    }

    .main_txt {
        margin-left: 30px;
        margin-right: 30px;
    }

    .main_1 {
        animation: flyIn 2.5s ease-out;
        font-size: 20px;
        padding-top: 25px;
        padding-bottom: 25px;
        margin-top: 100px;
    }

    .icon {
        width: 20px;
        height: 20px;
    }

    .dienste_block {
        position: relative;
        text-align: left;
        margin-left: -10px;
        border-radius: 10px;
        width: 250px;
        padding-left: 0px;
        padding-top: 10px;
        padding-bottom: 10px;
        margin-top: 100px;
    }
}