details {
    margin-bottom: 10px;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 5px;
    background: linear-gradient(to right, #4080ff20, #ffffff00);
}

details > summary {
    font-weight: bold;
    cursor: pointer;
    padding: 5px;
    color: #333;
}

details > summary::before {
    transition: transform 0.3s ease-in-out;
    transform: rotate(-90deg);
    display: inline-block;
    content: "▼";
    color: #666;
    margin-right: 0.4em;
}

details[open] > summary::before {
    transform: rotate(0deg);
}

details > details {
    margin-left: 20px;
    border: none;
    padding: 5px;
    background: linear-gradient(to right, #ffffffff, #20408020);
}

details > p {
    margin: 10px 0;
}

details > p > a {
    margin-inline: 10px;
    font-size: 0.8em;
    color: #0066cc;
    text-decoration: none;
}

details > p > a:hover {
    text-decoration: underline;
}