:root {
    --bg: #ffffff;
    --fg: #000000;
    --link: #800000;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #111111;
        --fg: #e0e0e0;
        --link: #ff6666;
    }
}

body {
    font-family: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'Courier New', monospace;
    background-color: var(--bg);
    color: var(--fg);
    max-width: 50rem;
    margin: 2rem auto;
    padding: 0 1rem;
    line-height: 1.6;
    font-size: 16px;
}

h1, h2, h3 {
    font-weight: bold;
    border-bottom: 1px dashed var(--fg);
    padding-bottom: 0.2rem;
    margin-top: 2.5rem;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover {
    background-color: var(--fg);
    color: var(--bg) !important;
    text-decoration: none;
}

nav {
    margin-bottom: 2rem;
    font-weight: bold;
}

nav a {
    margin-right: 1.5rem;
}

nav a::before { content: "[ "; color: var(--fg); }
nav a::after { content: " ]"; color: var(--fg); }

ul { list-style-type: square; }
li { margin-bottom: 0.5rem; }

.date {
    float: right;
    font-size: 0.9em;
    opacity: 0.8;
}

.clearfix::after {
    content: "";
    clear: both;
    display: table;
}