/* === GLOBAL THEME IMPROVEMENTS (PIXEL-BASED) === */

@font-face {
  font-family: 'Helvetica Neue';
  src: url('/fonts/HelveticaNeue-Thin.otf') format('opentype');
  font-weight: 100;
  font-style: normal;
}

@font-face {
  font-family: 'Helvetica Neue';
  src: url('/fonts/HelveticaNeue-Light.otf') format('opentype');
  font-weight: 300;
  font-style: normal;
}

@font-face {
  font-family: 'Helvetica Neue';
  src: url('/fonts/HelveticaNeue-Roman.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: 'Helvetica Neue';
  src: url('/fonts/HelveticaNeue-Medium.otf') format('opentype');
  font-weight: 500;
  font-style: normal;
}

@font-face {
  font-family: 'Helvetica Neue';
  src: url('/fonts/HelveticaNeue-Bold.otf') format('opentype');
  font-weight: 700;
  font-style: normal;
}

body {
  font-size: 18px;
  font-family: Helvetica Neue;
  background-color: #000000;
  color: #ffffff;
  line-height: 1.5;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* Main content area */
main {
  margin-left: 240px;
  padding: 24px;
  max-width: 900px;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
}

.updated {
  color: #ffffff;
  padding: 4px;
  background: #381d0f;
  border-radius: 2px;
}

/* Links */
a {
  text-decoration: none;
  transition: color 0.25s ease, border-bottom 0.25s ease;
}
a:link {
  color: #79a8ff;
}
a:visited {
  color: #feacd0;
}
a:hover {
  border-bottom: 1px solid currentColor;
}

/* Headings */
header h1 {
  text-align: center;
  font-size: 42px;
  font-weight: 700;
  margin: 20px 0;
  color: #ffffff;
}
h2 {
  color: #d2b580;
  font-size: 28px;
  margin-top: 40px;
  margin-bottom: 12px;
  border-bottom: 2px solid #1e1e1e;
  padding-bottom: 6px;
}
h3 {
  color: #82b0ec;
  font-size: 22px;
  margin-top: 28px;
  margin-bottom: 10px;
}
h4 {
  color: #feacd0;
  font-size: 20px;
  margin-top: 24px;
  margin-bottom: 8px;
}
h5 {
  color: #ff9580;
  font-size: 18px;
  margin-top: 20px;
}
h6 {
  color: #9ac8e0;
  font-size: 16px;
  margin-top: 18px;
}
p {
  margin: 12px 0;
}

.verbatim {
    color: #f78fe7;
    font-style: italic;
	padding-left: 2px;
	padding-right: 4px;
}

/* Inline code */
body code:not(pre code) {
  color: #6ae4b9;
  font-family: monospace;
}

/* Code blocks and figures */
.src, figure, blockquote {
  border-top: 4px solid #1e1e1e;
  border-bottom: 4px solid #1e1e1e;
  padding: 12px 12px;
  background: #111111;
  margin: 16px 0;
  transition: border-color 0.25s ease;
}
.src:hover,
figure:hover,
blockquote:hover {
  border-top-color: #82b0ec;
  border-bottom-color: #82b0ec;
}

pre, .src {
  /* white-space: pre;          /1* keep exact spacing and no wrapping *1/ */
  overflow-x: auto;          /* scroll horizontally when needed */
  /* overflow-y: hidden;        /1* avoid weird vertical scrollbars *1/ */
  /* display: block; */
  /* box-sizing: border-box; */
  padding: 10px;
  border: 1px solid #1e1e1e;
  font-size: 15px;
}

/* Notes and Warnings */
.note, .warning {
  border-left: 6px solid transparent;
  padding: 14px 18px;
  margin: 16px 0;
  background: #1a1a1a;
}
.note {
  border-left-color: #d2b580;
  background: #2b2505;
}
.warning {
  border-left-color: #b84a62;
  background: #3a0c14;
}

/* DETAILS FOLDS */
details {
  margin: 16px 0;
  background: #111111;
  border-left: 4px solid #1e1e1e;
  padding: 10px 14px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
details[open] {
  border-left-color: #82b0ec;
  background: #1a1a1a;
}
summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 19px;
  color: #82b0ec;
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  user-select: none;
}
summary::-webkit-details-marker {
  display: none;
}
summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 8px;
  color: #feacd0;
  transition: transform 0.2s ease, color 0.2s ease;
}
details[open] summary::before {
  transform: rotate(90deg);
  color: #82b0ec;
}
summary:hover {
  color: #feacd0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 16px;
  overflow: hidden;
}
th, td {
  border: 1px solid #333333;
  padding: 10px 14px;
}
th {
  background-color: #1e1e1e;
  color: #ffffff;
  font-weight: bold;
}
tr:nth-child(even) {
  background-color: #1e1e1e;
}
tr:nth-child(odd) {
  background-color: #2a2a2a;
}
tr:hover {
  background-color: #3a3a3a;
}

/* Images */
img {
  max-width: 100%;
  display: block;
  margin: 16px auto;
}
.landing-image {
  width: 50%;
}
.about-image {
  width: 20%;
}
.centered-image {
  text-align: center;
}

/* Sidebar */
#sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 220px;
  height: 100%;
  background-color: #111111;
  border-right: 2px solid #1e1e1e;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
}
#sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
#sidebar ul li {
  text-align: center;
  padding: 12px 0;
}
#sidebar ul li a {
  color: #c8d4df;
  display: inline;
  padding: 5px;
  /* transition: background-color 0.25s ease, color 0.25s ease; */
}
#sidebar ul li a:hover {
  background-color: #c7d4df;
  color: #111111;
}
.sidebar-header {
  text-align: center;
  padding: 16px 10px;
}
.sidebar-header a {
  color: #c8d4df;
  font-weight: bold;
}
.sidebar-header small {
    color: #9099d9;
    display: block;
}

/* Responsive adjustments */
@media screen and (max-width: 768px) {
  #sidebar {
    position: relative;
    text-align: center;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 2px solid #1e1e1e;
  }
  #sidebar ul {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
  }
  #sidebar li{
	align-content: center;
  }
  main {
    margin-left: 0;
    padding: 20px;
  }
}


/* Footer */
footer {
  text-align: center;
  margin: 40px auto 20px;
  padding: 10px;
  width: 80%;
  color: #888888;
  font-size: 15px;
  border-top: 2px solid #1e1e1e;
}

.footer-button {
  width: 22px;
  height: 22px;
  vertical-align: middle;
  opacity: 0.8;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.footer-button:hover {
  opacity: 1;
  transform: scale(1.1);
}