:root {

    --background: #fff;
    --text-color: #000;

    --quote-color: #eee;
    --code-color: #ddd;
    --line-color: #ccc;

    --link-color:       #555;
    --link-color-hover: #111;

    --underline-color:       #ddd;
    --underline-color-hover: #ccc;
}

@media (prefers-color-scheme: dark) {
    :root {

        --background: #222;
        --text-color: #ccc;

        --quote-color: #444;
        --code-color: #333;
        --line-color: #555;

        --link-color:       #bbb;
        --link-color-hover: #ddd;

        --underline-color:       #444;
        --underline-color-hover: #555;
    }
}



body {

    max-width: 900px;
    margin: 0 auto;

    padding: 50px;
    padding-top: 60px;
    padding-bottom: 60px;

    font-family: sans-serif;
    font-size: 20px;
    font-weight: 300;

    background: var(--background);
    color:      var(--text-color);
}

a {
    text-decoration-thickness: 3px;
    text-decoration-color: var(--underline-color);
    color: var(--link-color);
    transition: all 0.1s;
}

a:hover {
    text-decoration-color: var(--underline-color-hover);
    color: var(--link-color-hover);
}

sup {
    font-size: 16px;
}

img {
    max-width: 100%;
}

strong {
    font-weight: 500;
}

hr {
    background-color: var(--line-color);
    border: 0;
    margin-top: 30px;
    margin-bottom: 30px;
    height: 2px;
}

h1, h2, h3 {
    font-weight: 400;
}

h1 {
    font-size: 36px;
    margin-top: 0;
    margin-bottom: 40px;
}

h2 {
    font-size: 30px;
}

h3 {
    font-size: 24px;
}

p {
    line-height: 1.7;
    margin-top: 0px;
    margin-bottom: 20px;
}

ul {
    padding-left: 20px;
}

li {
    line-height: 1.6;
}

blockquote {
    margin: 0;
    margin-bottom: 10px;
    margin-top: 10px;
    padding: 15px;
    background: var(--quote-color);
}

blockquote > p {
    margin: 0;
    margin-bottom: 18px;
    font-size: 18px;
}

blockquote > p:last-child {
    margin: 0;
}

pre {
    background: var(--code-color);
    padding: 15px;
    font-size: 16px;
    line-height: 1.5;
    overflow: auto;
}

code {
    /* I hate this, but this is what you have to do if you don't want `monospace` to choose bad CJK fonts, like choosing SimSun on Windows */
    font-family: "JetBrains Mono", "Consolas", "SF Mono", Menlo, Monaco, "DejaVu Sans Mono", "Roboto Mono", "微软雅黑", monospace;
    font-variant-ligatures: none;
}

p > code, li > code {
    background: var(--code-color);
    padding-left: 5px;
    padding-right: 5px;
    font-size: 16px;
}

footer {
    font-size: 18px;
    margin-top: 120px;
}

footer > a {
    line-height: 2;
}

@media (max-width: 800px) {

    body {
        padding: 20px;
        padding-top: 40px;
        padding-bottom: 40px;
        font-size: 16px;
    }

    h1 {
        font-size: 30px;
        margin-bottom: 40px;
    }

    h2 {
        font-size: 24px;
    }

    h3 {
        font-size: 20px;
    }

    p {
        margin-bottom: 16px;
    }

    ul {
        padding-left: 15px;
    }

    hr {
        margin-top: 20px;
        margin-bottom: 20px;
    }

    sup {
        font-size: 12px;
    }

    pre {
        font-size: 14px;
    }

    p > code, li > code {
        font-size: 14px;
    }

    blockquote {
        padding: 10px;
    }

    blockquote > p {
        margin-bottom: 14px;
        font-size: 14px;
    }

    footer {
        font-size: 14px;
        margin-top: 90px;
    }
}