/* General Reset */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: var(--body-font-family);
}
ul {
	list-style: none;
}

html {
	scroll-behavior: smooth;
}

body {
	background-color: var(--body-bg);
	font-family: var(--body-font-family);
	font-size: 1.1em;
	display: flex;
	flex-direction: column;
	min-height: 100vh;
	color: var(--body-txt-color);
}

/* Links */
a, a:visited {
	color: var(--link-color);
	text-decoration: none;
}
a:hover {
	color: var(--link-color-hover);
}

/* Inputs and Buttons */
input, select, textarea {
	color: var(--input-txt-color);
	background: var(--input-bg);
	padding: 0 0.5em;
	border-radius: 5px;
	border-style: solid;
	border-width: 1px;
	border-color: var(--input-border-color);
	outline: none;
	/* Remove stupid egg shape from ios */
	--webkit-appearance: none;
	accent-color: var(--input-accent-color);
	min-height: 30px;
	box-shadow: 0px 1px 3px 1px var(--input-shadow-color) inset;
	font-size: 0.8em;
}
textarea {
	max-width: 100%;
	padding: 1em 0.5em;
}
input:focus, select:focus, textarea:focus,
input:hover, select:hover, textarea:hover {
	border-color: var(--input-accent-color);
}
button, a.button, input.button {
	color: var(--button-txt-color);
	background: var(--button-bg);
	border-style: solid;
	border-width: 1px;
	border-color: var(--button-border-color);
	padding: 0.4em 0.5em;
	border-radius: 4px;
	box-shadow: var(--button-shadow);
	text-shadow: 0px 1px 0px rgba(255,255,255,0.4);
	transition: background 0.3s ease-in-out, border 0.1s step-end;
}
button:hover, a.button:hover, input.button:hover {
	cursor: pointer;
}
button:hover, a.button:hover, input.button:hover,
button:focus, a.button:focus, input.button:focus {
	border-color: var(--button-accent-color);
	background: var(--button-bg-hover);
}

/* Wrapper and Containers */
.wrapper,
div.header_container,
div.top_bar_container,
nav ul,
section#main_content,
div.footer_container {
	width: 80%;
	margin: 0 auto;
}

/* Fixed Footer */
div.footerfix {
	flex: 1 0 auto;
}

/* Header */
a#site_backtop {
	color: transparent;
	font-size: 0;
	line-height: 0;
}
header {
	background: var(--header-bg);
}
header .header_container {
	min-height: 100px;
	padding: 1em 0;
	display: flex;
	align-items: center;
}
header .header_container h1,
header .header_container form {
	flex-basis: 0;
	flex-grow: 1;
}

/* Page Title */
header .header_container div.title {
	display: flex;
	flex-direction: column;
}
header .header_container div.title h1 {
	font-size: 2.7em;
	font-weight: bold;
	margin: 0;
	padding: 0;
	text-shadow: 1px 1px 5px rgba(0,0,0,0.1);
}
header .header_container div.title span.site_description {
	font-size: 0.75em;
	text-align: center;
}

/* Search Form */
header .header_container form {
	display: flex;
	justify-content: flex-end;
	gap: 4px;
}
header .header_container form input,
header .header_container form button {
	height: 2.5em;
}
header .header_container form input[name="search"] {
	border-style: solid;
	border-width: 1px;
	/* border-color: var(--top-bar-border-color); */
	padding: 0 0.5em;
	border-top-left-radius: 5px;
	border-bottom-left-radius: 5px;
	width: 8em;
	transition: width 0.4s ease-in-out;
	height: 32px;
}
header .header_container form input[name="search"]:hover,
header .header_container form input[name="search"]:focus {
	width: 12em;
}
header .header_container form button {
	padding: 0 1em;
	height: auto;
}

/* Top Bar */
.top_bar {
	background: var(--top-bar-bg);
	border-style: solid;
	border-width: 0 0 3px;
	border-color: var(--top-bar-border-color);
	box-shadow: 0px 5px 5px 0px var(--top-bar-shadow-color) inset;
}
.top_bar .top_bar_container {
	display: flex;
	align-items: center;
	min-height: 38px;
}
.top_bar .top_bar_container div {
	flex-basis: 0;
	flex-grow: 1;
}
.top_bar #user_area {
	display: flex;
	justify-content: flex-end;
	gap: 10px;
	font-size: 0.8em;
	align-items: center;
}
.top_bar #date {
	text-transform: uppercase;
	font-size: 0.7em;
	color: var(--top-bar-txt-color);
}

/* Nav */
nav.main {
	background: var(--nav-bg);
	box-shadow: 0 -2px 8px 0px rgba(0, 0, 0, 0.2), 0px -1px 0 0px rgba(255, 255, 255, 0.3) inset;
}
nav.main ul {
	display: flex;
	gap: 3em;
	min-height: 50px;
	align-items: center;
	flex-wrap: wrap;
}
nav.main ul li {
	display: flex;
	align-items: center;
	height: 50px;
	position: relative;
}
nav.main ul li,
nav.main ul li a {
	text-transform: uppercase;
	color: var(--nav-item-txt-color);
	text-decoration: none;
	font-size: 0.9em;
}
nav.main ul li a:hover,
nav.main ul li:hover a {
	color: var(--nav-item-txt-color-hover);
}
nav.main ul li.active a {
	color: var(--nav-item-txt-color-active);
	font-weight: 700;
}
nav.main ul li ul {
	display: none;
	background: var(--nav-dropdown-bg);
	position: absolute;
	width: 12em;
	top: 100%;
	padding: 0.9em 0.5em;
	z-index: 1;
}
nav.main ul ul::before {
	content: "";
	position: absolute;
	border-style: solid;
	border-color: transparent transparent var(--nav-dropdown-bg) transparent;
	border-width: 0px 5px 8px 5px;
	bottom: 100%;
	left: 1em;
}
nav.main ul li:hover > ul {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: flex-start;
	gap: 0;
}
nav.main ul li li {
	text-transform: none;
	font-size: 0.8em;
	width: 100%;
	height: auto;
}
nav.main ul li li a {
	background: var(--nav-dropdown-item-bg);
	padding: 0.8em 1em;
}
nav.main ul:hover li li,
nav.main ul:hover li li a,
nav.main ul li li,
nav.main ul li li a {
	border-radius: 3px;
	color: var(--nav-dropdown-item-txt-color);
	width: 100%;
}
nav.main ul li li:hover {
	background: var(--nav-dropdown-item-bg-hover);
}
nav.main ul li li:hover a,
nav.main ul li li a:hover {
	color: var(--nav-dropdown-item-txt-color-hover);
}

/* Content Section */
section#main_content {
	margin-top: 0.5em;
	margin-bottom: 0.5em;
}
section#main_content .content_box,
section#main_content .content_section {
	background: var(--content-section-bg);
	border-style: solid;
	border-width: 0 2px;
	border-color: var(--content-section-border-color);
	box-shadow: 0px 1px 1px 0px rgba(0, 0, 0, 0.1) inset, 0px -1px 1px 0px rgba(0, 0, 0, 0.1) inset;
	padding: 1.5em 1em;
	border-radius: 3px;
}

/* Footer */
footer {
	background: var(--footer-bg);
	color: var(--footer-txt-color);
}
footer .footer_container {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 80px;
}
footer .footer_container ul {
	flex-basis: 0;
	flex-grow: 1;
	display: flex;
}
/* Footer Bottom Links */
.footer_container ul.bottom_links {
	gap: 0.5em;
	align-items: center;
}
.footer_container ul.bottom_links li {
	text-transform: uppercase;
	font-size: 0.7em;
	letter-spacing: 0.1em;
}
.footer_container ul.bottom_links li.top {
	font-size: 0.6em;
	border-left: 1px solid var(--content-section-border-color);
	padding-left: 1em;
}
.footer_container ul.bottom_links li a {
	color: var(--footer-link-color);
}
/* Footer Copyright and Site Links */
.footer_container ul.site_copyright {
	flex-direction: column;
	font-weight: 700;
	order: 1;
	font-size: 0.8em;
	text-align: right;
	gap: 0.3em;
}
.footer_container ul.site_copyright li.forum_links a {
	color: var(--footer-link-color);
	display: inline;
	padding: 0 0.8em;
	border-right: 1px solid var(--top-bar-border-color);
	text-transform: uppercase;
	font-size: 0.75em;
}
.footer_container ul.site_copyright li.forum_links a:first-child {
	padding-left: 0;
}
.footer_container ul.site_copyright li.forum_links a:last-child {
	padding-right: 0;
	border-width: 0;
}

/* Content */
.content_box {
	display: flex;
	gap: 25px;
	flex-wrap: wrap;
}
.forum_articles {
	flex-basis: 70%;
}
#main_content h2,
#main_content h3 {
	display: inline-block;
	width: auto;
	color: var(--h2-content-color);
	font-size: 0.85em;
	text-transform: uppercase;
	font-weight: 700;
	padding: 2px 2px 0;
	border-style: solid;
	border-width: 0 0 2px;
	border-color: var(--content-section-border-color);
	text-shadow: 1px 1px 0 var(--content-title-shadow-color);
}

/* Forum Articles */
#main_content article,
#main_content .main_frame {
	margin: 0.5em 0.2em 0.8em;
	padding: 0.5em 1em;
	background: var(--article-bg);
	box-shadow: var(--article-shadow-color);
	border-radius: 4px;
}
#main_content article h3,
#main_content article h3 a {
	color: var(--h3-content-color);
	font-size: 0.95em;
	font-weight: 700;
	border-width: 0;
	text-transform: unset;
	margin: 2px 0 4px;
}
#main_content article div.news_timestamp {
	font-size: 0.7em;
	padding: 7px 25px 2px;
	gap: 1em;
	text-align: left;
	display: flex;
	flex-direction: row;
	align-content: center;
}
#main_content article div.news_timestamp span {
	flex-basis: 0;
	flex-grow: 1;
}
#main_content article div.news_timestamp span:first-child {
	order: 2;
	text-align: right;
}
#main_content article div.news_body {
	margin: 1.2em 0 1em;
	padding: 0 1em;
	border-style: solid;
	border-width: 0 1px 0 0;
	border-color: var(--article-body-border-color);
}
#main_content article div.news_body,
#main_content article div.news_body .bbc_size {
	font-size: 0.8em !important;
}

/* Sidebar */
.sidebar {
	flex-basis: 0;
	flex-grow: 1;
}
#main_content .sidebar h2,
#main_content .sidebar h3 {
	font-size: 0.75em;
	text-align: right;
	display: block;
	border-width: 0;
}
.sidebar div.sidebar_block {
	margin: 1em 0 0.2em;
	background: var(--sidebar-block-bg);
	border-radius: 4px;
	border-top: 3px solid var(--content-section-border-color);
	padding: 0.3em 0.5em;
	box-shadow: 1px -1px 1px 0px rgba(0, 0, 0, 0.1) inset, 1px 1px 1px 0px rgba(0, 0, 0, 0.1) inset;
}
#main_content .sidebar div.sidebar_block h3 {
	font-size: 0.9rem;
	text-transform: none;
	padding: 0 0 0.2em;
	text-align: left;
}
div.sidebar_block ul.sidebar_links {
	font-size: 0.75em;
}
div.sidebar_block ul.sidebar_links li {
	margin: 0.4em 0;
}
div.sidebar_block ul.sidebar_links a {
	color: var(--sidebar-link-color);
}
div.sidebar_block ul.sidebar_links a:hover {
	color: var(--sidebar-link-color-hover);
}
div.sidebar_block ul.sidebar_links a::before {
	display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
	font-family: "Font Awesome 5 Free"; 
	font-weight: 900; 
	content: "\f35d";
	margin-right: 10px;
}

/* DL */
dl {
	display: flex;
	flex-wrap: wrap;
}
dd, dt {
	width: 50%;
	margin: 0 0 10px;
}
.contact_form {
	width: 85%;
	margin: 0 auto;
	padding: 1em 0;
}
.contact_form input,
.contact_form select,
.contact_form textarea {
	width: 100%;
}
.form_button {
	display: block;
	margin-left: auto;
}

/* MathJax */
#mathjax_input {
	width: 100%;
	margin: 0.8em 0 1em;
}
span.description {
	font-size: 0.8em;
}
span.description em {
	font-size: 85%;
	font-weight: 300;
}
button#renderHTML {
	display: block;
	margin: 0.3em 0 1.2em;
}
#math_preview {
	background-color: var(--input-bg);
	padding: 1em;
	margin: 1em 0;
}

/* Color Mode Selector */
a#page_color_mode {
	margin-right: 10px;
	position: relative;
}
a#page_color_mode::before {
	display: inline-block;
	font-style: normal;
	font-variant: normal;
	text-rendering: auto;
	-webkit-font-smoothing: antialiased;
	font-family: "Font Awesome 5 Free"; 
	font-weight: 900; 
	font-size: 1.3em;
	content: var(--color-mode-icon-content);
	color: var(--color-mode-icon-color);
	padding-right: 5px;
	position: absolute;
	right: 100%;
	top: -1px;
}