.sticky-header {
    position: sticky;
    top: 0;
    background-color: var(--header-bg);
    color: var(--header-text-color);
    padding: 20px;
    font-size: 32px;
    font-weight: bold;
    z-index: 1000;
    border-radius: 0;
}

.documentation-container {
    display: flex;
    flex-wrap: wrap;
    padding: 20px;
    gap: 20px;
}

.left-sidebar, .middle-sidebar {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--card-shadow);
    padding: 20px;
    overflow-y: auto;
    height: calc(100vh - 150px);
    position: sticky;
    top: 110px;
}

.folder-header {
    background-color: var(--sidebar-button-bg);
    color: var(--sidebar-button-text);
    border: 1px solid var(--sidebar-button-border);
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
}
.folder-header:hover {
    background-color: var(--button-bg);
    color: var(--button-text);
}
.folder-content.active {
    display: block;
}
.folder-content {
    display: none;
    padding-left: 20px;
}

.subfolder-link {
    display: block;
    padding: 8px 15px;
    background-color: var(--sidebar-button-bg);
    color: var(--sidebar-button-text);
    border: 1px solid var(--sidebar-button-border);
    border-radius: 8px;
    margin-bottom: 10px;
    text-decoration: none;
}
.subfolder-link:hover {
    background-color: var(--button-bg);
    color: var(--button-text);
}
.subfolder-link.active {
    background-color: var(--active-button-bg);
    color: #fff;
}