/* Table of Contents — sticky sidebar */
.labcritics-toc {
   background: #fff;
    border-left: 1px solid #e0e0e0;
    padding: 22px 26px;
    font-size: 14px;
    line-height: 1.5;
    width: 28%;
    float: left;
    position: sticky;
    top: 0em;
    margin: 0 0 30px;
    box-sizing: border-box;
    max-height: 52vh;
    overflow-y: scroll;
    border-bottom: 1px solid #e0e0e0;
}

/* Title */
.labcritics-toc-title {
        font-size: 15px;
    font-weight: 500;
    color: #222;
    margin: 0 0 2px;
}

/* List */
.labcritics-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Each item */
.labcritics-toc-item {
    border-top: 1px solid #eee;
    padding: 0;
    margin: 0;
}

/* Diamond bullet + link */
.labcritics-toc-item a {
    display: block;
    padding: 6px 0 6px 18px;
    color: #333;
    text-decoration: none;
    position: relative;
    transition: color 0.15s;
}

.labcritics-toc-item a::before {
    content: '\25C6';
    position: absolute;
    left: 0;
    top: 9px;
    font-size: 9px;
    color: #333;
    line-height: 1.5;
}

.labcritics-toc-item a:hover {
    color: #41a62a;
}

.labcritics-toc-item a:hover::before {
    color: #41a62a;
}

/* H3 indent */
.labcritics-toc-h3 a {
 padding-left: 37px;
}

.labcritics-toc-h3 a::before {
    left: 12px;
}

/* Smooth scroll target offset for fixed headers */
[id] {
    scroll-margin-top: 80px;
}

/* Product/tool pages: TOC inside existing sidebar */
.tool-content-area .labcritics-toc {
    width: 100%;
    float: none;
    position: sticky;
    top: 6em;
    margin-bottom: 20px;
}

/* Mobile: full width above content */
@media screen and (max-width: 43.75em) {
    .labcritics-toc {
        width: 100%;
        float: none;
        position: static;
        margin-bottom: 20px;
    }
}