/* General */
body {
    background: #ffffff;
    margin: 0;
    line-height: 1.5em;
    font-family: helvetica, arial, sans-serif;
    color: #333333;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0;
    line-height: 1.2em;
    margin-top: 1em;
}

a:link, a:visited {
    color: #0000e0;
    text-decoration: none
}

a:hover, a:active {
    color: #0000ff;
    text-decoration: underline
}

/* Single column layout */
nav section, header section, main, footer section {
    max-width: 40em;
    margin-left: 1em;
    margin-right: auto;
    padding: 0 0.5em;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    body {
        background: #333333;
	color: #cccccc;
    }
    a:link, a:visited {
        color: #7777e0;
    }
    a:hover, a:active {
        color: #9999ff;
    }
}