.fij-toc-wrapper {
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #fff;
    overflow: hidden;
    width: 100%;
}
.fij-toc-header {
    padding: 15px 20px;
    display: flex; justify-content: space-between; align-items: center;
    cursor: pointer;
}
.fij-toc-header-title { font-weight: 700; font-size: 18px; }
.fij-toc-body { padding: 15px 20px; border-top: 1px solid #eee; }
.fij-toc-body ul { list-style: none; margin: 0; padding: 0; }
.fij-toc-body li { margin-bottom: 8px; }
.fij-toc-body a { text-decoration: none; font-size: 15px; transition: 0.2s; display: block; }

/* Indentation based on heading level */
.fij-toc-body .toc-h3 { padding-left: 20px; font-size: 14px; }
.fij-toc-body .toc-h4 { padding-left: 40px; font-size: 13px; }
.fij-toc-body .toc-h5 { padding-left: 60px; }