_common.scss

@import 'variables';

.yfm {
    font-family: var(--yfm-font-family-sans);
    font-size: 15px;
    line-height: 20px;
    word-wrap: break-word;
    color: $textColor;

    * {
        box-sizing: border-box;
    }

    & > *:not(h2):not(h3):not(h4):not(h5):not(h6):first-child {
        margin-top: 0 !important;
    }

    & > *:last-child {
        margin-bottom: 0 !important;
    }

    h1, h2, h3, h4, h5, h6 {
        margin-bottom: 15px;
        font-weight: 500;
    }

    h1 {
        font-size: 32px;
        line-height: 40px;
    }

    h2 {
        font-size: 24px;
        line-height: 28px;
    }

    h3 {
        font-size: 20px;
        line-height: 24px;
    }

    h4 {
        font-size: 17px;
        line-height: 24px;
    }

    h5 {
        font-size: 15px;
        line-height: 20px;
    }

    h6 {
        font-size: 13px;
        line-height: 18px;
    }

    a {
        background-color: transparent;
        color: $linkColor;
        text-decoration: none;

        &:hover, &:active {
            color: $linkHoverColor;
        }

        &:not([href]) {
            color: inherit;
        }

    }

    strong {
        font-weight: 700;
    }

    img, svg {
        box-sizing: content-box;
        max-width: 100%;
        border: none;
        vertical-align: middle;

        &[align=right] {
            padding-left: 20px;
        }

        &[align=left] {
            padding-right: 20px;
        }
    }

    img {
        background-color: $baseColor;
    }

    svg {
        height: auto;
    }

    .katex svg {
        height: initial;
    }

    img + small {
        display: block;
    }

    p,
    blockquote,
    ul,
    ol,
    dl,
    table,
    pre {
        margin: 0 0 15px 0;
    }

    ul, ol, dl {
        & pre {
            margin-top: 15px;
        }
    }

    code,
    kbd,
    pre {
        font-family: var(--yfm-font-family-monospace);
        font-size: 1em;
        font-feature-settings: normal;
    }

    input {
        margin: 0;
        overflow: visible;

        font-family: inherit;
        font-size: inherit;
        line-height: inherit;

        &[type='checkbox'] {
            position: relative;
            top: 1px;

            box-sizing: border-box;
            padding: 0;
        }
    }

    table {
        color: #333;

        display: inline-block;
        max-width: 100%;
        width: auto;
        overflow: auto;
        position: relative;
        z-index: 1;

        box-sizing: border-box;
        border: 1px solid $borderColor;
        border-radius: 8px;
        border-collapse: collapse;
        border-spacing: 0;
        background: $baseColor;

        thead, tr:nth-child(2n) {
            background-color: $tableRowBackgroundColor;
        }

        tr:first-child {
            td, th {
                border-top: none;
            }
        }

        tr:last-child {
            td, th {
                border-bottom: none;
            }
        }


        th, td {
            padding: 10px 20px;
            overflow: hidden;
            text-overflow: ellipsis;
            border: 1px solid $borderColor;

            p {
                padding: 0;
                margin: 0;
            }
        }

        td {
            vertical-align: baseline;
            white-space: normal;
        }

        th {
            font-weight: 500;
            text-align: left;
        }

        tr td:first-child, tr th:first-child {
            border-left: none;
        }
        tr td:last-child, tr th:last-child {
            border-right: none;
        }
    }

    hr {
        box-sizing: content-box;
        height: 0.25em;
        padding: 0;
        margin: 1.5em 0;
        overflow: hidden;

        background-color: $borderColor;
        border: none;

        &::before {
            content: '';
            display: table;
        }

        &::after {
            content: '';
            display: table;
            clear: both;
        }
    }

    blockquote {
        position: relative;
        padding-left: 12px;
        border-left: 3px solid $accentColor;

        & > *:first-child {
            margin-top: 0;
        }

        & > *:last-child {
            margin-bottom: 0;
        }
    }

    dl {
        padding: 0;

        & > *:first-child {
            margin-top: 0;
        }

        & > *:last-child {
            margin-bottom: 0;
        }

        dt {
            margin-bottom: 5px;
            font-size: 1em;
            font-weight: 500;
            font-style: italic;
        }

        dd {
            margin-bottom: 15px;
            padding: 0 15px;
        }
    }

    dd {
        margin-left: 0;

        & > ol:first-child,
        & > ul:first-child,
        & > dd:first-child {
            padding-left: 0;
        }
    }

    ul, ol {
        padding-left: 2.2em;
    }

    ul ul,
    ul ol,
    ol ol,
    ol ul {
        margin-top: 0;
        margin-bottom: 0;
    }

    &:not(.yfm_no-list-reset) {
        ol {
            list-style-type: none;
            counter-reset: list;

            & > li {
                position: relative;
                counter-increment: list;

                &::before {
                    position: absolute;
                    right: 100%;
                    margin-right: 4px;
                    content: counters(list, '.') '. ';
                }
            }
        }
    }

    li {
        word-wrap: break-word;
    }

    li + li {
        margin-top: 0.33em;
    }

    li p,
    li blockquote {
        margin-top: 15px;
    }

    code {
        padding: 0.1em 0.4em 0.15em;
        background-color: $inlineCodeBackgroundColor;
        border-radius: 4px;
        font-size: 0.875em;
        white-space: normal;
        color: $inlineCodeColor;
    }

    pre {
        word-wrap: normal;
    }

    table code {
        white-space: nowrap;
    }

    pre * code {
        display: inline;
        padding: 0;
        margin: 0;
        overflow: visible;
        word-wrap: normal;
        background-color: transparent;
        border: 0;
        color: $textColor;
    }

    pre > code {
        display: block;
        padding: 16px;
        overflow: auto;

        background-color: $codeBackgroundColor;
        color: $textColor;

        white-space: pre;
    }

    sup, sub {
        line-height: 0;
    }

    /*
        Hides element visually, but leaves it visible for search crawlers and screen readers

        https://www.a11yproject.com/posts/2013-01-11-how-to-hide-content/
        https://hugogiraudel.com/2016/10/13/css-hide-and-seek/
    */
    .visually-hidden {
        position: absolute;

        overflow: hidden;
        clip: rect(0 0 0 0);

        width: 1px;
        height: 1px;
        margin: -1px;

        padding: 0;

        white-space: nowrap;

        border: 0;

        clip-path: inset(100%);
    }

    // highlight.js colors
    --yfm-color-hljs-background: #{$codeBackgroundColor};
    --yfm-color-hljs-subst: #444;
    --yfm-color-hljs-comment: #888888;
    --yfm-color-hljs-deletion: #880000;
    --yfm-color-hljs-section: #880000;
    --yfm-color-hljs-pseudo: #BC6060;
    --yfm-color-hljs-literal: #78A960;
    --yfm-color-hljs-addition: #397300;
    --yfm-color-hljs-meta: #1f7199;
    --yfm-color-hljs-meta-string: #4d99bf;
    --yfm-font-family-monospace: "Menlo", "Monaco", "Consolas", "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", "Courier", monospace;
    --yfm-font-family-sans: 'Segoe UI', Arial, Helvetica, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
}