/* ============================================================================

Name: TOC(Table Of Contents)
Date: 2021-05-28
Author: apost
blog: blogpack.tistory.com
email: extflash@gmail.com
Distributed under MIT License

* 목차 <UL>에 .toc 클래스가 정의되어 있어야 목차 레이아웃이 적용됩니다.
* 래퍼 태그는 없으며 <UL>만으로 목차 트리 구조를 구현합니다.

============================================================================ */

.toc{
    border: 1px solid #ccc;
    padding: 15px 25px;
    margin-bottom: 20px;
    box-sizing: border-box;
    text-decoration: none;
    letter-spacing: -1px;
    font-weight: bold;
    background-color: #fcfcfc;
}
.toc > .title{
    font-size: 1.375rem;
    text-decoration: underline;
}
.toc, .toc ul{
    list-style: none !important;
    margin-bottom: 0 !important;
}
.toc > ul, .toc-h3{
    padding: 0 0 0 10px;
}
.toc > li > ul.toc-h4{
    padding: 0 0 0 10px;
}
.toc li{
    padding: 7px 0;
    max-height: 100%;
    overflow: hidden;
    opacity: 1;
    transition: opacity 0.5s ease;
}
.toc > li{
    text-indent: -20px;
    padding-left: 20px;
}
.toc > li > a{
    font-size: 1.1875rem;
}
.toc > li > ul > li{
    text-indent: -17px;
    padding-left: 17px;
}
.toc > li > ul > li > a{
    font-size: 1.125rem;
}
.toc > li > ul.toc-h4 > li > a{
    font-size: 1.0625rem;
}
.toc > li > ul > li > ul{
    padding: 0 0 0 10px;
}
.toc > li > ul > li > ul > li{
    font-size: 1.0625rem;
    text-indent: -15px;
    padding-left: 15px;
}

.toc a, .toc a:visited{
    text-decoration: none;
}

/* Coloring */
.toc.black{
    color: #000;
    border: 1px solid #000;
}
.toc-blue .toc{
    border: 1px solid #6bd;
}
.toc-blue .toc, .toc-blue .toc a, .toc-blue .toc > .title, .toc-blue .togglefold:before{
    color: #6bd;
}
.toc-red .toc{
    border: 1px solid #a64;
}
.toc-red .toc, .toc-red .toc a, .toc-red .toc > .title, .toc-red .togglefold:before{
    color: #f64;
}
.toc-green .toc{
    border: 1px solid #6a4;
}
.toc-green .toc, .toc-green .toc a, .toc-green .toc > .title, .toc-green .togglefold:before{
    color: #6a4;
}
.toc-black .toc{
    border: 1px solid #000;
}
.toc-black .toc, .toc-black .toc a, .toc-black .toc > .title, .toc-black .togglefold:before{
    color: #000;
}

/* Folding*/
.toc li.fold{
    max-height: 0;
    overflow: hidden;
    padding: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}
.togglefold:before{
    content: "▼";
    font-family: monospace;
    font-weight: bold;
    font-size: 1.25rem;
    padding: 2px 8px;
    margin-left: 8px;
    border-radius: 7px;
    background-color: #e5e5e5;
}
.togglefold.unfold:before{
    content: "▲";
}