body {
    margin: 0;
    padding: 20px;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #18181b;
}
.container {
    max-width: 900px;
    margin: auto;
    background: #1f1f23;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}
h1 {
    text-align: center;
    margin-bottom: 1em;
}
h2 {
    margin-top: 1.5em;
    border-bottom: 1px solid #333;
    padding-bottom: 0.3em;
}
.list {
    display: inline-flex;
    align-items: center;
}
img {
    width: 25px;
    height: 25px;
    margin-right: 0.5em;
}
ul {
    list-style: none;
    padding: 0;
}
li {
    margin: 0.5em 0;
}
code {
    background: #2f2f2f;
    padding: 2px 4px;
    border-radius: 4px;
    font-family: monospace;
    color: #e0e0e0;
}
footer {
    text-align: center;
    margin-top: 2em;
    font-size: 0.9em;
    color: #888;
}
a {
    color: #b78df6;
}
footer a:hover {
    text-decoration: underline;
}
details {
    margin-top: 1.5em;
}
summary {
    font-size: 1.25em;
    cursor: pointer;
    list-style: none;
    outline: none;
    border-bottom: 1px solid #333;
    padding-bottom: 0.3em;
}
summary::-webkit-details-marker {
    display: none;
}
summary::before {
    content: "▶";
    display: inline-block;
    margin-right: 0.5em;
    transition: transform 0.3s ease;
}
details[open] summary::before {
    transform: rotate(90deg);
}

main {
    display: flex;
    flex-wrap: wrap;
    margin: -0.5em;
}
main details {
    flex: 1 1 100%;
    box-sizing: border-box;
    padding: 0.5em;
}
@media screen and (min-width: 768px) {
    main details {
        flex: 1 1 calc(50% - 1em);
        margin: 0.5em;
    }
}

details.full-width ul {
    column-count: 1;
    column-gap: 1em;
}
@media screen and (min-width: 768px) {
    details.full-width ul {
        column-count: 2;
    }
}