/* 1. TOC Container Box */
.wp-block-rank-math-toc-block {
    background-color: #f9f9f9; /* Light grey background */
    border: 1px solid #e1e1e1;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    position: relative;
}

/* 2. The Title (Clickable Trigger) */
.wp-block-rank-math-toc-block h2,
.wp-block-rank-math-toc-block h3 { /* Supports H2 or H3 */
    font-size: 18px;
    margin-bottom: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* 3. The Arrow Icon (Pure CSS - No plugins needed) */
.wp-block-rank-math-toc-block h2::after,
.wp-block-rank-math-toc-block h3::after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-right: 2px solid #333;
    border-bottom: 2px solid #333;
    transform: rotate(45deg); /* Arrow pointing down */
    transition: transform 0.3s ease;
    margin-left: 10px;
}

/* 4. The List (OPEN by default) */
.wp-block-rank-math-toc-block nav {
    margin-top: 15px;
    display: block;
    /* Animation niceties */
    opacity: 1;
    transition: opacity 0.3s ease;
}


/* Rotate the arrow up */
.wp-block-rank-math-toc-block.toc-closed h2::after,
.wp-block-rank-math-toc-block.toc-closed h3::after {
    transform: rotate(-135deg);
    margin-top: 5px;
}