/*
 * The colours here are the ones the hand-written pages carried in their
 * <body> and <td> attributes since the 90s: purple nav column, grey nav
 * links, red body links.
 */

:root {
    --nav-bg: #900090;
    --nav-link: #b0b0b0;
    --link: #ff0000;
    --link-visited: #c00090;
}

body {
    margin: 0;
    background: #ffffff;
    color: #000000;
    font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

a { color: var(--link); }
a:visited { color: var(--link-visited); }
a:active { color: var(--link); }

.page {
    display: flex;
    align-items: stretch;
    min-height: 100vh;
}

nav {
    flex: 0 0 auto;
    background: var(--nav-bg);
    padding: 25px 20px 10px 5px;
    display: flex;
    flex-direction: column;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1 1 auto;
}

nav li {
    margin: 0 0 1.25em 0;
    white-space: nowrap;
    font-size: 1.15em;
}

nav a,
nav a:visited,
nav a:active {
    color: var(--nav-link);
    text-decoration: none;
}

nav a:hover { text-decoration: underline; }

/* The page you are already on is not a link */
nav .here { color: #ffffff; }

nav .email {
    display: block;
    margin-top: 2em;
}

main {
    flex: 1 1 auto;
    padding: 30px 30px 30px 35px;
    max-width: 60em;
}

main h1 { font-size: 1.6em; }
main h2 { font-size: 1.3em; }

main pre {
    overflow-x: auto;
}

main img { max-width: 100%; height: auto; }

/* Narrow screens get the nav across the top rather than down the side */
@media (max-width: 40em) {
    .page { display: block; }
    nav ul { display: flex; flex-wrap: wrap; gap: 0 1.5em; }
    nav li { margin-bottom: 0.5em; }
    nav .email { margin-top: 1em; }
    main { padding: 20px; }
}

/* The site root: banner images only, no chrome */
body.banner { padding: 0; }
body.banner img { vertical-align: baseline; }

/* Firebase's stock 404 page, kept as it was */
body.notfound {
    background: #eceff1;
    color: rgba(0, 0, 0, 0.87);
    font-family: Roboto, Helvetica, Arial, sans-serif;
}

body.notfound #message {
    background: white;
    max-width: 360px;
    margin: 100px auto 16px;
    padding: 32px 24px 16px;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

body.notfound #message h1 {
    font-size: 22px;
    font-weight: 300;
    color: rgba(0, 0, 0, 0.6);
    margin: 0 0 16px;
}

body.notfound #message h2 {
    color: #ffa100;
    font-weight: bold;
    font-size: 16px;
    margin: 0 0 8px;
}

body.notfound #message p {
    line-height: 140%;
    margin: 16px 0 24px;
    font-size: 14px;
}

@media (max-width: 600px) {
    body.notfound, body.notfound #message { margin-top: 0; background: white; box-shadow: none; }
    body.notfound { border-top: 16px solid #ffa100; }
}

/* Cover art beside the blurb on the books page */
.book {
    display: flex;
    gap: 1.5em;
    align-items: flex-start;
    margin: 1em 0;
}

.book img { flex: 0 0 auto; }