/* Base styles */
:root {
  --bg-dark: #1e1e2f;
  --bg-sidebar: #29293d;
  --bg-header: #2e2e42;
  --text-light: #e0e0f8;
  --accent-pink: #ffb6b9;
  --accent-blue: #b5d3ff;
  --accent-green: #b9fbc0;
  --accent-purple: #d7b5f9;
}

body {
  margin: 0;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  background-color: var(--bg-header);
  display: flex;
  align-items: center;
  padding: 0 20px;
  height: 60px;
  justify-content: space-between;
  box-sizing: border-box;
          position: relative;
          flex-shrink: 0;
}

.logo {
  font-size: 1.5em;
  color: var(--accent-pink);
  white-space: nowrap;
}

.nav-list {
  display: flex;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item a {
  padding: 6px 12px;
  border: 1px solid var(--accent-green);
  border-radius: 16px;
  text-decoration: none;
  color: var(--text-color);
}

.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
}

.nav > ul > li {
  margin: 0 4px;
}

.nav li {
  position: relative;
}

.nav > ul > li > a {
  padding: 20px;
  display: inline-block;
  color: var(--text-light);
  text-decoration: none;
}

.nav li:hover > a {
  color: var(--accent-blue);
}

/* Dropdown Parent */
.dropdown {
  position: relative;
}

/* Dropdown Menu */
.dropdown-content {
  position: absolute;
  background-color: var(--bg-sidebar);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
  top: 100%;
  left: 0;
  z-index: 10;
  width: max-content;

  display: flex;
  flex-direction: column;
  padding: 0;

  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;

  text-align: left; /* force left alignment */
  align-items: flex-start; /* prevents centering during layout shifts */
}

.dropdown:hover .dropdown-content {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.dropdown-content li {
  display: flex; /* ensures vertical stacking */
  flex-direction: column;
  margin: 0;
  padding: 0;
  width: 100%;
}

.dropdown-content li a {
  padding: 10px 20px;
  display: block;
  color: var(--text-light);
  text-align: left;
  text-decoration: none;
  white-space: nowrap;
  box-sizing: border-box;
}

.dropdown-content li a:hover {
  background-color: var(--accent-purple);
  color: var(--bg-dark);
}

.nav > ul > li > a {
  padding: 4px 10px;
  display: inline-block;
  color: var(--text-light);
  text-decoration: none;
  border: 2px solid var(--accent-green);
  border-radius: 20px;
  transition: background-color 0.2s, color 0.2s;
  margin: 0 5px;
}

.nav > ul > li > a:hover {
  color: var(--bg-dark);
  background-color: var(--accent-green);
}

/* Layout */
.container {
  display: flex;
  flex: 1;
}

.sidebar {
  width: 120px;
  background-color: var(--bg-sidebar);
  padding: 10px;
}

.sidebar ul {
  list-style: none;
  padding: 0;
}

.sidebar li a {
  display: block;
  padding: 10px;
  color: var(--text-light);
  text-decoration: none;
  border-radius: 8px;
}

.sidebar li a:hover {
  background-color: var(--accent-green);
  color: var(--bg-dark);
}

/* Main content */
.main-content {
  flex: 1;
  padding: 20px;
}

/* Footer */
.footer {
  background-color: var(--bg-header);
  text-align: center;
  padding: 10px;
  font-size: 0.9em;
  position: relative;
}

.footer-left {
  display: inline-block;
}

.footer-left p {
  margin: 0;
  font-size: 1em;
  color: var(--accent-blue);
  text-align: center;
}

.footer-note {
  position: absolute;
  bottom: 10px;
  right: 20px;
  white-space: nowrap;
}

.footer-note p {
  font-size: 0.75em;
  color: var(--accent-blue);
  margin: 0;
  font-style: italic;
}

.footer a {
  color: var(--accent-blue);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

.centered-image {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

pre, code {
  background-color: #1e1e1e;
  color: #d4d4d4;
  font-family: 'Fira Code', 'JetBrains Mono', 'Inconsolata', monospace;
  font-size: 0.95em;
  line-height: 1.5;
  border-radius: 6px;
  padding: 0.75em 1em;
  overflow-x: auto;
}

/* colouring for inline code */
code {
  padding: 0.1em 0.3em;
  border-radius: 4px;
  background-color: #2d2d2d;
  color: #c5c8c6;
}

.token.comment, .token.prolog, .token.doctype, .token.cdata {
  color: #6a9955;
  font-style: italic;
}
.token.keyword {
  color: #c586c0;
}
.token.string {
  color: #ce9178;
}
.token.function {
  color: #dcdcaa;
}
.token.variable {
  color: #9cdcfe;
}
.token.operator {
  color: #d4d4d4;
}

hr.solid {
           border-top: 1px solid LightSeaGreen;
           }

a {
  color: #4da3ff;
}

a:visited {
  color: #a07aff;
}

a:hover {
  color: #80c4ff;
}

a:active {
  color: #3399ff;
}