body {
    font-family: system-ui, -apple-system, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
    font-size: 1.1rem;
    height: 100vh;
    line-height: 1.5;
    letter-spacing: 1px;
    min-width: 320px;
    max-width: 800px;
    margin: auto;
    margin-top: 2rem;
}

header {
    background-color: #313759;
    border-radius: 0.5rem;
    color: white;
    margin-bottom: 1rem;
    padding: 1rem;
}

main {
    background-color: #8F94A6;
    border-radius: 0.5rem;
    margin-bottom: 4rem;
    padding: 1rem;
}

.datenschutz > p {
    font-size: 0.8em;
}

details {
    background-color: #8F94A6;
    box-shadow: 0 .1rem 1rem -.5rem rgba(0,0,0,.4);
    border-radius: 5px;
    margin: 0 auto 0.5rem auto;
    overflow: hidden;
    padding: 0;
}
summary {
    background: #8C262E;
    color: #F2F2F2;
    cursor: pointer;
    border-radius: 0.2rem;
    display: block;
    padding: 1rem 1rem 1rem 2.2rem;
    position: relative;
}
summary:before {
    border-width: .4rem;
    border-style: solid;
    border-color: transparent transparent transparent #fff;
    content: '';
    left: 1rem;
    position: absolute;
    top: 1.3rem;
    transform: rotate(0);
    transform-origin: .2rem 50%;
    transition: .25s transform ease;
}
details[open] > summary:before {
    transform: rotate(90deg);
}
details summary::-webkit-details-marker {
    display:none;
}
details > p {
    box-shadow: 2px 2px 2px 1px rgba(0, 0, 0, 0.2);
    margin-bottom: 0.5rem;
    margin-top: 0.5rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

footer {
    font-size: small;
}