.site-header {
    font-size: small;
    margin-bottom: 0.25em;
    margin-left: -10%;
    padding-left: 1em;
}

.site-icon {
    width: 16px;
    height: 16px;
    vertical-align: text-bottom;
}

body {
    margin-left: 10%;
    margin-right: 10%;
    max-width: 50em;
    background-color: #fafafa;
    color: #222;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
}

pre {
    font-family: Consolas, "Courier New", monospace;
    overflow-x: auto;
    background: #eef1f5;
    padding: 12px;
    border: 1px solid #e0e4e8;
    border-radius: 4px;
}

.pre-wrapper {
    position: relative;
}

.copy-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    padding: 2px 8px;
    font-size: small;
    font-family: inherit;
    color: #555;
    background: rgba(240, 240, 240, 0.8);
    border: 1px solid rgba(204, 204, 204, 0.8);
    border-radius: 3px;
    cursor: pointer;
}

.copy-btn:hover {
    background: rgba(224, 224, 224, 0.9);
}

hr {
    border: none;
    border-top: 1px solid #c0d0e0;
}

a {
    color: #1a6fb5;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.order-btn {
    display: inline-block;
    padding: 8px 22px;
    background: #4a9fd4;
    color: #fff;
    font-size: 105%;
    font-weight: bold;
    border-radius: 4px;
}

.order-btn:hover {
    background: #3a8fc4;
    text-decoration: none;
}

h1, h2, h3, h4 {
    color: #114a7a;
    margin-top: 1.5em;
}

h4 {
    border-top: 1px solid #ddd;
    padding-top: 0.8em;
}

#main + h2, #main + h1 {
    margin-top: 0.5em;
}

.center {
    text-align: center;
}

.center table {
    margin-left: auto;
    margin-right: auto;
}

.small {
    font-size: small;
}

.notice {
    font-size: 85%;
}

.large {
    font-size: large;
}

table[border] {
    border-collapse: collapse;
    border: 1px solid #c0d0e0;
}

table[border] th,
table[border] td {
    border: 1px solid #c0d0e0;
    padding: 8px 10px;
}

table[border] th {
    background: #f5f7f9;
}

.site-footer {
    margin-top: 1em;
    padding-top: 0.5em;
    font-size: 90%;
    color: #555;
    line-height: 1.3;
}
.site-footer a {
    color: #114a7a;
}

.nav-list {
    list-style: none;
    padding-left: 1em;
    display: inline-block;
    text-align: left;
}

.nav-list li {
    text-indent: -1em;
    padding-left: 1em;
}

.nav-list li::before {
    content: "\25B8 ";
    color: #c00;
}

img {
    border: 0;
}