:root {
    --bg-0:       #181818;
    --bg-1:       #282828;
    --bg-2:       #484848;
    --fg-0:       #e4e4ef;
    --fg-1:       #f4f4ff;
    --red:        #f43841;
    --accent:     #ffdd33;
    --accent-2:   #cc8c3c;
    --link:       #96a6c8;
    --link-hover: #565f73;
    --heading:    #95a99f;
    --border: solid 1px var(--heading);
}

html {
    scroll-padding-top: 4em;
    scroll-behavior: smooth;
    position: relative;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 5px;
    background-color: var(--bg-1);
}

::-webkit-scrollbar-thumb {
    background-color: var(--link-hover);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--link);
}

body {
    background-color: var(--bg-0);
    color: var(--fg-0);
    font-family: "San Francisco", system-ui;
    line-height: 1.6;
    position: relative;
}

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

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

a[href*="//"]:after {
    font-weight: 300;
    font-size: 0.85em;
    content: "\2197"; /* top right arrow */
    color: var(--link);
}

a[href*="//"]:hover:after {
    color: var(--link-hover);
}

a:before {
    font-size: 0.7em;
    margin-right: 0.4em;
}

/* Documents */
a[href$=".pdf"]:before {
    content: "PDF";
}
a[href$=".md"]:before {
    content: "MD";
}
a[href$=".txt"]:before {
    content: "TXT";
}
a[href$=".adoc"]:before {
    content: "ASCIIDOC";
}
a[href$=".roff"]:before {
    content: "ROFF";
}
a[href$=".tex"]:before {
    content: "LATEX";
}

/* Video */
a[href$=".mov"]:before,
a[href$=".avi"]:before,
a[href$=".webm"]:before,
a[href$=".wmv"]:before,
a[href$=".mkv"]:before,
a[href$=".mp4"]:before {
    content: "VID";
}

/* Audio */
a[href$=".m4a"]:before,
a[href$=".wav"]:before,
a[href$=".ogg"]:before,
a[href$=".opus"]:before,
a[href$=".flac"]:before,
a[href$=".mp3"]:before {
    content: "AUD";
}

/* Archives */
a[href$=".7z"]:before {
    content: "7Z";
}
a[href$=".tar"]:before,
a[href$=".tar.gz"]:before,
a[href$=".tar.xz"]:before {
    content: "TAR";
}
a[href$=".zip"]:before {
    content: "ZIP";
}
a[href$=".rar"]:before {
    content: "RAR";
}

/* Images */
a[href$=".gif"]:before,
a[href$=".jfif"]:before,
a[href$=".jpg"]:before,
a[href$=".webp"]:before,
a[href$=".jpeg"]:before,
a[href$=".png"]:before {
    content: "IMG";
}

h1 {
    color: var(--accent);
    font-size: xx-large;
    position: relative;
}

h2 {
    color: var(--heading);
    font-size: x-large;
}

h1:has(+ p), h1:has(+ time), h1:has(+ br), h2:has(+ br) {
    margin-bottom: -0.5rem;
    padding-bottom: 1rem;
}

p {
    font-size: large;
    margin-top: 0.3em;
    margin-bottom: 1em;
}

b, strong {
    font-weight: bold;
}

i, em {
    font-style: italic;
}

time {
    color: var(--bg-2);
    font-size: initial;
    margin-left: 0.4em;
}

q, blockquote {
    display: block;
    margin: 15px 0;
    padding: 8px 0 8px 15px;
    border-left: solid 3px var(--accent);
}

pre > p {
    font-size: medium;
    font-style: normal;
}

cite, cite time {
    color: var(--accent-2);
}

cite::before {
    content: "— ";
}

cite time::before {
    content: "/ ";
}

hr {
    border: none;
    border-bottom: solid 1px var(--bg-1);
    margin: 1em 0;
}

table {
    border-radius: 3px;
    width: 100%;
    margin: 1em auto;
    text-align: left;
    border: var(--border);
}

th {
    background-color: var(--heading);
    color: var(--bg-0);
}

th, td {
    padding: 0.3em 0.8em;
}

tr {
    background-color: var(--bg-1);
}

tr:nth-of-type(even) {
    background-color: var(--bg-2);
}

summary {
    color: var(--heading);
}

summary:hover {
    cursor: pointer;
}

code, kbd, pre {
    padding: 5px;
    border-radius: 3px;
    font-family: monospace;
}

kbd {
    background-color: var(--fg-0);
    color: var(--bg-0);
}

pre, code {
    background-color: var(--bg-1);
    color: var(--fg-1);
}

pre {
    padding: 1em;
    overflow-x: scroll;
}

pre code {
    padding: 0;
}

pre p {
    padding: 0;
    margin: 0;
    display: flex;
}

main {
    display: block;
    margin: auto;
    position: relative;
    min-height: 100vh;
    width: 100vw;
    background: var(--bg-0);
    padding-top: 5em;
    z-index: 1;
}

article {
    display: none;
}

article:target {
    display: block;
}

nav {
    display: flex;
    flex-wrap: wrap;
    position: fixed;
    background-color: var(--bg-0);
    top: 0;
    z-index: 2;
    justify-content: space-between;
    margin: auto;
    width: 100vw;
    border-bottom: solid 1px var(--bg-1);
}

nav a {
    text-decoration: none;
    display: inline-block;
    padding: 1em;
}

img {
    max-width: 100%;
    display: block;
    margin: 0.7em auto;
}

ul, ol {
    list-style-position: inside;
    padding-inline-start: 1em;
    line-height: 1;
}

ol {
    list-style: auto;
}

ul {
    list-style: disc;
}

ul ul, ol ol {
    margin: 0;
}

ul p, ol p {
    display: none;
}

li {
    padding: 3px 0;
}

.content {
    display: block;
    max-width: 80ch;
    margin: auto;
    padding: 15px;
}

#nav_menu {
    background-color: var(--bg-0);
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    margin-left: auto;
    text-align: right;
    padding: .5em;
    border: var(--border);
    border-top: none;
    border-right: none;
    border-color: var(--bg-1);
}

#nav_menu a {
    margin: 1em;
}

.nav_menu {
    display: none;
}

#biblioteca {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.livro {
    position: relative;
    width: 200px;
    margin: 1em 10px;
}

.livro img {
    width: 180px;
    height: 280px;
    object-fit: cover;
}

.livro p {
    font-size: larger;
    text-align: center;
    margin: 0;
}

.livro progress {
    border-radius: 0;
    border: none;
    background-color: var(--bg-1);
    width: 100%;
    border: solid 1px var(--bg-0);
}

.livro progress::-webkit-progress-bar {
    background-color: var(--bg-1);
}

.livro progress::-webkit-progress-value {
    background-color: var(--heading);
}

.livro progress::-moz-progress-bar {
    background-color: var(--heading);
}

button {
    display: inline-block;
    padding: 1em;
    border: none;
    background-color: var(--bg-0);
    color: var(--link);
}

button:hover {
    color: var(--link-hover);
}

.alert {
    color: var(--red);
}

noscript {
    display: flex;
    position: absolute;
    background-color: var(--bg-0);
    z-index: 1000;
    width: 100vw;
    height: 100vh;
    justify-content: center;
    align-items: center;
}

@media only screen and (max-width: 720px) {
    h1:hover::before {
	content: "";
    }

    .nav_items {
	display: none;
    }

    .nav_menu, nav a {
	display: inline-block;
	font-size: large;
    }

    ::-webkit-scrollbar {
	display: none;
    }
}