html {
    overflow-y: scroll;
}

body {
    background-color: #fff8e6;
    color: #2a2000;
    font-family: "LXGW WenKai TC", "Noto Sans", sans-serif;
    padding: 0;
    margin: 0;
}

pre,
code {
    margin: 0;
}

a {
    /*color: #c68a00;*/
    /*color: #333333;*/
    color: #005386;
    /*color: #ffdd66;*/
}
strong {
    color: brown;
}

#header a,
#nav a,
#menu a {
    text-decoration: none;
    color: #333333;
}

#nav a:hover {
    background-color: #f2e3b3;
}

#menu {
    clear: both;
    color: #ffffff;
    overflow: hidden;
    background-color: #c68a00;
    padding: 0.7ex;
    border-top: 1px solid #d6c48a;
    border-bottom: 1px solid #a67200;
}

#menu a {
    padding: 0.5ex 1ex;
    color: #fff;
}

#menu a:hover {
    background-color: #a67200;
}

#header {
    background-color: #f2e3b3;
    clear: both;
    color: #4a3a00;
    font-size: 1.78em;
    padding: 0.7ex 0.7ex 0.7ex 0.7em;
}

#headerLink {
    color: #c68a00;
    /*background-color: #a67200;*/
    margin-left: 5px;
}

h1, h2, h3 h4 {
    margin: 1em 1ex 0.5ex 0;
    font-weight: bold;
}

h1 {
    font-size: 1.8em;
}

h2 {
    font-size: 1.6em;
}

h3 {
    font-size: 1.4em;
}

h4 {
    font-size: 1.2em;
}

#headerSubtitle {
    font-size: 0.75em;
    font-style: italic;
    margin-left: 1em;
}

#content {
    clear: both;
    margin: 0;
    padding: 0;
}

#nav {
    float: left;
    margin: 0 1px 0 0;
    padding: 1em 0;
    border-right: 1px dotted #d6c48a;
    width: 200px;
}

#nav ul {
    margin: 0;
    padding: 0;
}

#nav li {
    list-style: none;
    padding: 0;
    margin: 0;
}

#nav li ul {
    padding-left: 0.6em !important;
}

#nav li a {
    display: block;
    margin: 0;
    padding: 0.8ex 2em 0.8ex 1em;
    color: #2a2000;
}

#main {
    margin: 0 0 0 200px;
    max-width: 60em;
    padding: 1.5em;
}

#card {
  margin: 0 10px 0 0;
  padding: 1em 0;
  float: left;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  max-width: 150px;
  text-align: center;
}


#card #title {
  color: grey;
  font-size: 18px;
}

.left {
    float: left;
    margin: 0;
    padding: 0;
}

.right {
    float: right;
    margin: 0;
    padding: 0;
}

.hidden {
    display: none;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #000;
        color: #e6e6e6;
    }
    #menu {
        border-top: 1px solid #222;
        background-color: #a67200;
    }
    #header a,
    #menu a,
    #nav ul a {
        color: #ffdd66;
    }
    #header {
        background-color: #111;
    }
    #nav a:hover {
        background-color: #222;
    }
    blockquote,
    pre,
    code {
        background-color: #111;
        border-color: #222;
    }
    strong {
        color: orangered;
    }
    a {
        color: #ffdd66;
    }
    #main img[src$="svg"] {
        filter: invert(1);
    }
}