/* DJV documentation.
 *
 * Hand written, and no more than the pages need: they are read from a web
 * server and from a file on disk, so nothing here may be fetched at run time.
 */

:root {
    --text: #24292f;
    --muted: #57606a;
    --link: #0060a8;
    --rule: #d8dee4;
    --sidebar: #f6f8fa;
    --code-bg: #f2f4f7;
    --note: #e7f1fb;
    --note-rule: #0060a8;
    --tip: #e8f5ec;
    --tip-rule: #1a7f37;
    --nav-width: 16rem;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    color: var(--text);
    background: #fff;
    font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        Helvetica, Arial, sans-serif;
}

/* Navigation ------------------------------------------------------------- */

nav {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--nav-width);
    height: 100%;
    overflow-y: auto;
    padding: 1.5rem 0;
    background: var(--sidebar);
    border-right: 1px solid var(--rule);
}

nav .logo {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin: 0 1.5rem 1.25rem;
    color: var(--text);
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
}

nav .logo img { width: 24px; height: 24px; }

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

nav a {
    display: block;
    padding: .35rem 1.5rem;
    color: var(--muted);
    text-decoration: none;
}

nav a:hover { color: var(--text); background: #eaeef2; }

/* The suite's pages are a section of DJV's, so the list says where one
 * ends and the other begins. */
nav li.section {
    margin: 1rem 1.5rem .25rem;
    color: var(--muted);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}

nav a.current {
    color: var(--text);
    font-weight: 600;
    box-shadow: inset 3px 0 var(--link);
}

/* The toggle is only used at narrow widths; it is a checkbox rather than a
 * script, since a page opened as a file may not fetch anything. */
#nav-toggle, #nav-button { display: none; }

/* Content ---------------------------------------------------------------- */

main {
    max-width: 46rem;
    margin: 0 0 6rem calc(var(--nav-width) + 3rem);
    padding: 2.5rem 1.5rem 0 0;
}

h1, h2, h3 { line-height: 1.25; }
h1 { margin: 0 0 1.5rem; font-size: 2rem; }
h2 {
    margin: 2.5rem 0 1rem;
    padding-bottom: .3rem;
    font-size: 1.4rem;
    border-bottom: 1px solid var(--rule);
}
h3 { margin: 2rem 0 .75rem; font-size: 1.1rem; }

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

img {
    display: block;
    max-width: 100%;
    margin: 1.5rem 0;
}

ul, ol { padding-left: 1.5rem; }
li { margin: .3rem 0; }

code {
    padding: .15em .35em;
    background: var(--code-bg);
    border-radius: 3px;
    font-size: .9em;
}

pre {
    padding: .9rem 1rem;
    overflow-x: auto;
    background: var(--code-bg);
    border-radius: 5px;
}

pre code { padding: 0; background: none; }

kbd {
    padding: .1em .45em;
    background: var(--code-bg);
    border: 1px solid var(--rule);
    border-bottom-width: 2px;
    border-radius: 4px;
    font-family: inherit;
    font-size: .85em;
    white-space: nowrap;
}

.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    margin: 1.5rem 0;
    border-collapse: collapse;
    font-size: .95rem;
}

th, td {
    padding: .5rem .6rem;
    text-align: left;
    border-bottom: 1px solid var(--rule);
    vertical-align: top;
}

th { border-bottom-width: 2px; }

.note, .tip {
    margin: 1.5rem 0;
    padding: .8rem 1rem;
    background: var(--note);
    border-left: 4px solid var(--note-rule);
    border-radius: 0 4px 4px 0;
}

.tip {
    background: var(--tip);
    border-left-color: var(--tip-rule);
}

/* Narrow screens --------------------------------------------------------- */

@media (max-width: 60rem) {
    nav {
        position: static;
        width: auto;
        height: auto;
        padding: 1rem 0;
        border-right: none;
        border-bottom: 1px solid var(--rule);
    }
    nav ul { display: none; }
    #nav-toggle:checked ~ nav ul { display: block; }
    #nav-button {
        display: block;
        position: absolute;
        top: 1.1rem;
        right: 1.5rem;
        padding: .3rem .7rem;
        border: 1px solid var(--rule);
        border-radius: 4px;
        background: #fff;
        cursor: pointer;
        user-select: none;
    }
    main {
        max-width: none;
        margin: 0 0 4rem;
        padding: 1.5rem 1.25rem 0;
    }
}