.gap5 { gap: 5px; }
.gap10 { gap: 10px; }
.gap15 { gap: 15px; }
.gap20 { gap: 20px; }
.gap25 { gap: 25px; }
.fit-down { object-fit: scale-down; }



body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background: #fff;
    color: #24292e;
    line-height: 1.6;
    display: flex;
}
main {
    flex: 1;
    padding: 40px;
}
main h1 {
    font-size: 2rem;
    border-bottom: 1px solid #eaecef;
    padding-bottom: 0.3em;
}
main h2 {
    margin-top: 2em;
    font-size: 1.5rem;
    border-bottom: 1px solid #eaecef;
    padding-bottom: 0.3em;
}
pre {
    background: #f6f8fa;
    border: 1px solid #e1e4e8;
    padding: 10px;
    border-radius: 6px;
    overflow-x: auto;
}
code {
    font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 90%;
}
aside {
    width: 260px;
    border-left: 1px solid #e1e4e8;
    padding: 20px;
    background: #fafbfc;
    position: sticky;
    top: 0;
    overflow-y: auto;
}
aside input {
    width: 100%;
    padding: 6px 8px;
    margin-bottom: 12px;
    border: 1px solid #d1d5da;
    border-radius: 6px;
    font-size: 14px;
}
aside ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
aside li {
    padding: 6px 0;
    cursor: pointer;
}
aside li:hover {
    color: #0366d6;
    text-decoration: underline;
}
aside a {
    text-decoration: none;
    color: #0366d6;
}
aside a:hover {
    text-decoration: underline;
}
.hidden {
    display: none;
}
pre {
    margin: 0;
}