/* wikimedia-hugo theme - Dark Wikipedia-inspired styles */

/* ============================================
   CSS Variables (Color Palette)
   ============================================ */
:root {
  --color-bg: #1a1a1a;
  --color-surface: #252525;
  --color-surface-alt: #2d2d2d;
  --color-text: #e0e0e0;
  --color-text-muted: #a0a0a0;
  --color-link: #6ab0f3;
  --color-link-visited: #9d8cff;
  --color-link-hover: #8ec8ff;
  --color-accent: #4a9eff;
  --color-border: #3a3a3a;
  --color-border-light: #4a4a4a;
  --color-accent-green: #1a261a;
  --color-accent-green-mid: #223322;
  --color-accent-green-light: #2a3d2a;

  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SF Mono", "Consolas", "Liberation Mono", monospace;
  --font-title: "Linux Libertine", "Libre Baskerville", Georgia, serif;

  --content-width: 900px;
  --toc-width: 220px;
  --header-height: 60px;
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

a.missing,
a.redlink,
a.redlink:visited {
  color: #ba0000;
}

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

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

img {
  max-width: 100%;
  height: auto;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: var(--color-text);
}

h1 { font-size: 2em; }
h2 { font-size: 1.5em; border-bottom: 1px solid var(--color-border); padding-bottom: 0.3em; clear: both; }
h3 { font-size: 1.25em; display: block; width: fit-content; border-bottom: 1px solid var(--color-border); padding-bottom: 0.3em; padding-right: 1em; clear: both; }
h4 { font-size: 1.15em; text-decoration: underline; text-decoration-color: var(--color-border); text-underline-offset: 0.4em; text-decoration-thickness: 2px; text-decoration-style: dotted; }

p {
  margin: 1em 0;
}

blockquote {
  margin: 1em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-surface);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.2em 0.4em;
  background-color: var(--color-surface);
  border-radius: 3px;
}

pre {
  background-color: var(--color-surface);
  padding: 1em;
  overflow-x: auto;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

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

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
}

th, td {
  border: 1px solid var(--color-border);
  padding: 0.5em 0.75em;
  text-align: left;
}

th {
  background-color: var(--color-surface);
  font-weight: 600;
}

tr:nth-child(even) {
  background-color: var(--color-surface);
}

/* ============================================
   Site Header
   ============================================ */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
}

.header-container {
  max-width: calc(var(--content-width) + var(--toc-width) + 60px);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  text-decoration: none;
}

.site-title {
  font-family: var(--font-title);
  font-size: 1.4em;
  font-weight: 700;
  color: var(--color-text);
}

.site-logo:hover .site-title {
  color: var(--color-link);
}

.site-subtitle {
  display: block;
  font-size: 0.75em;
  font-weight: normal;
  color: var(--color-text-muted);
  font-family: var(--font-title);
}

.site-nav a {
  margin-left: 1.5em;
  font-family: var(--font-heading);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.35em 0.5em;
  cursor: pointer;
  line-height: 1;
}

.nav-toggle:hover {
  background-color: var(--color-surface-alt);
}

/* ============================================
   Header Search
   ============================================ */
.header-search {
  flex: 1;
  max-width: 500px;
  margin: 0 2em 0 1em;
  position: relative;
  display: flex;
  align-items: center;
}

.header-search .search-icon {
  position: absolute;
  left: 10px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.header-search input[type="search"] {
  flex: 1;
  padding: 0.5em 0.75em 0.5em 2.25em;
  font-family: var(--font-heading);
  font-size: 0.9em;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  border-right: none;
}

.header-search input[type="search"]::placeholder {
  color: var(--color-text-muted);
}

.header-search input[type="search"]:focus {
  outline: none;
  border-color: var(--color-link);
}

.header-search .search-button {
  padding: 0.5em 1em;
  font-family: var(--font-heading);
  font-size: 0.9em;
  color: var(--color-text);
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 0;
  cursor: pointer;
}

.header-search .search-button:hover {
  background-color: var(--color-border);
}

/* Remove default search cancel button in WebKit browsers */
.header-search input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

/* ============================================
   Site Container
   ============================================ */
.site-container {
  max-width: calc(var(--content-width) + var(--toc-width) + 60px);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   Article Layout (with TOC sidebar)
   ============================================ */
.article-layout {
  display: flex;
  gap: 40px;
  padding-top: 20px;
}

.article-main {
  flex: 1;
  min-width: 0;
  max-width: var(--content-width);
}

/* ============================================
   Article Sidebar (container for menu + ToC)
   ============================================ */
.article-sidebar {
  width: var(--toc-width);
  flex-shrink: 0;
}

.sidebar-nav {
  /* background-color: var(--color-surface); */
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.75em 0;
  margin-bottom: 1em;
  /* position: sticky; */
  /* top: calc(var(--header-height) + 20px); */
}

.sidebar-nav a {
  display: block;
  padding: 0.1em 1em;
  color: var(--color-link);
  text-decoration: none;
  font-size: 0.9em;
}

.sidebar-nav a:hover {
  background-color: var(--color-surface-alt);
}

.sidebar-nav a.active {
  background-color: var(--color-surface-alt);
  border-left: 3px solid var(--color-accent);
  padding-left: calc(1em - 3px);
}

.sidebar-title {
  font-size: 1em;
  margin: 0 0 0.75em 0;
  padding: 0 1em 0.5em 1em;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-heading);
}

@media (max-width: 1100px) {
  .article-sidebar {
    display: none;
  }
}

/* ============================================
   Table of Contents Sidebar
   ============================================ */
.toc-sidebar {
  width: var(--toc-width);
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--header-height) + 20px);
  max-height: calc(100vh - var(--header-height) - 40px);
  overflow-y: auto;
}

.toc {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1em;
}

.toc-title {
  font-size: 1em;
  margin: 0 0 0.75em 0;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-heading);
}

.toc nav > ul,
.toc #TableOfContents > ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc li {
  margin: 0.4em 0;
}

.toc ul ul {
  padding-left: 1em;
  margin-top: 0.3em;
}

.toc a {
  font-size: 0.9em;
  color: var(--color-link);
  display: block;
}

.toc a:visited {
  color: var(--color-link);
}

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

.toc-toggle {
  display: none;
}

/* ============================================
   Article Styles
   ============================================ */
.article-header {
  margin-bottom: 0;
}

.article-title {
  font-family: var(--font-title);
  font-style: italic;
  font-size: 2em;
  margin: 0;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.1em;
}

.article-subtitle {
  font-size: 1.1em;
  color: var(--color-text-muted);
  margin: 0;
  font-style: italic;
}

/* Article Toolbar */
.article-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.3em 0;
  margin-top: 0;
  margin-bottom: 1em;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-heading);
  font-size: 0.9em;
}

.toolbar-left {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.75em;
}

.toolbar-tab {
  color: var(--color-link);
  text-decoration: none;
}

.toolbar-tab:hover {
  color: var(--color-link-hover);
}

.toolbar-tab.active {
  color: var(--color-text);
  font-weight: 500;
}

.toolbar-separator {
  color: var(--color-border-light);
}

.toolbar-lastmod {
  font-size: 0.9em;
}

.toolbar-right {
  display: flex;
  gap: 1em;
}

.toolbar-right a {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  color: var(--color-link);
}

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

.toolbar-right svg {
  flex-shrink: 0;
}

.article-content {
  line-height: 1.7;
}

.article-content > *:first-child {
  margin-top: 0;
}

.article-related {
  margin-top: 2em;
}

.article-related h2 {
  font-size: 1.5em;
  margin-top: 0;
}

.article-related ul {
  margin: 0.5em 0;
  padding-left: 1.5em;
}

.article-related li {
  margin: 0.3em 0;
}

.article-footer {
  margin-top: 1em;
  padding-top: 1em;
  border-top: 1px solid var(--color-border);
}

.article-categories span {
  color: var(--color-text-muted);
}

.article-categories a {
  margin-left: 0.5em;
}

/* ============================================
   Infobox (Wikipedia-style)
   ============================================ */
.infobox {
  float: right;
  clear: right;
  width: 280px;
  margin: 0 0 1em 1.5em;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.9em;
}

.infobox-title {
  background-color: var(--color-surface-alt);
  padding: 0.75em 1em;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1em;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.infobox-image {
  text-align: center;
  padding: 0.75em;
  border-bottom: 1px solid var(--color-border);
}

.infobox-image img {
  max-width: 100%;
  height: auto;
}

.infobox-caption {
  font-size: 0.85em;
  color: var(--color-text-muted);
  margin-top: 0.5em;
  font-style: italic;
}

.infobox-content {
  padding: 0.5em;
}

.infobox-content table {
  margin: 0;
  border: none;
}

.infobox-content th,
.infobox-content td {
  border: none;
  border-bottom: 1px solid var(--color-border);
  padding: 0.4em 0.5em;
  vertical-align: top;
}

.infobox-content tr:last-child th,
.infobox-content tr:last-child td {
  border-bottom: none;
}

.infobox-content th {
  background: none;
  font-weight: 600;
  width: 40%;
  color: var(--color-text-muted);
}

/* ============================================
   Table of Contents Box (inline)
   ============================================ */
.toc-box {
  float: left;
  clear: left;
  width: 300px;
  margin: 0 1.5em 1em 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.9em;
}

.toc-box-title {
  background-color: var(--color-surface-alt);
  padding: 0.5em 1em;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

.toc-box nav,
.toc-box ul {
  margin: 0;
  padding: 0.5em 1em;
}

.toc-box ul {
  list-style: none;
  padding-left: 0;
}

.toc-box li {
  margin: 0.3em 0;
}

.toc-box li ul {
  padding-left: 1em;
  padding-top: 0.2em;
  padding-bottom: 0;
}

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

.toc-box a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .toc-box {
    float: none;
    width: 100%;
    margin: 1em 0;
  }
}

/* ============================================
   Image Card
   ============================================ */
.imgcard {
  display: inline-block;
  max-width: 100%;
  margin: 1em 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.5em;
}

.imgcard img {
  display: block;
  max-width: 100%;
  height: auto;
}

.imgcard-caption {
  font-size: 0.85em;
  color: var(--color-text-muted);
  padding: 0.5em 0.25em 0;
  text-align: center;
  font-style: italic;
}

/* ============================================
   Details/Collapsible Box
   ============================================ */
.details-box {
  background-color: var(--color-accent-green);
  border: 1px solid var(--color-accent-green-light);
  border-radius: 4px;
  margin: 1em 0;
}

.details-box summary {
  padding: 0.75em 1em;
  cursor: pointer;
  font-weight: 500;
  background-color: var(--color-accent-green-mid);
  border-radius: 4px;
}

.details-box[open] summary {
  border-bottom: 1px solid var(--color-accent-green-light);
  border-radius: 4px 4px 0 0;
}

.details-box summary:hover {
  background-color: var(--color-accent-green-light);
}

.details-content {
  padding: 0.75em 1em;
}

.details-content p:first-child {
  margin-top: 0;
}

.details-content p:last-child {
  margin-bottom: 0;
}

.imgcard-left {
  float: left !important;
  clear: left;
  margin: 0.25em 1em 0.5em 0 !important;
  padding: 0.25em;
  display: block;
}

.imgcard-right {
  float: right !important;
  clear: right;
  margin: 0.25em 0 0.5em 1em !important;
  padding: 0.25em;
  display: block;
}

/* ============================================
   List Pages
   ============================================ */
.list-main,
.home-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 20px 0;
}

.list-header,
.home-header {
  margin-bottom: 2em;
}

.list-title,
.home-title {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3em;
}

.home-tagline {
  font-size: 1.1em;
  color: var(--color-text-muted);
  margin-top: 0.5em;
}

.article-list {
  list-style: none;
  padding: 0;
}

.article-list-item {
  margin: 1em 0;
  padding-bottom: 1em;
  border-bottom: 1px solid var(--color-border);
}

.article-list-item:last-child {
  border-bottom: none;
}

.article-list-item a {
  font-size: 1.1em;
  font-weight: 500;
}

.article-list-description {
  margin: 0.25em 0 0;
  color: var(--color-text-muted);
  font-size: 0.95em;
}

/* Category List */
.category-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em 1.5em;
}

.category-list-item {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3em;
}

.category-list-item a {
  font-size: 1.05em;
}

.category-count {
  color: var(--color-text-muted);
  font-size: 0.85em;
}

.home-articles h2 {
  font-size: 1.3em;
  margin-top: 2em;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  margin-top: 3em;
  padding: 2em 20px;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.9em;
  color: var(--color-text-muted);
}

.footer-container {
  max-width: calc(var(--content-width) + var(--toc-width) + 60px);
  margin: 0 auto;
}

.site-footer p {
  margin: 0.5em 0;
}

.theme-credit {
  font-size: 0.85em;
}

/* ============================================
   404 Error Page
   ============================================ */
.error-page {
  max-width: var(--content-width);
  /* margin: 0 auto; */
  padding: 2em 20px;
}

.error-image {
  float: left;
  width: var(--toc-width);
  margin: 0 1.5em 1em 0;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1em;
}

.error-image img {
  width: 100%;
  height: auto;
}

.error-content {
  margin-top: 14em; /* adjust this value as needed */
}

.error-content h1 {
  font-family: var(--font-title);
  font-size: 2em;
  margin: 0 0 0.5em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.2em;
}

.error-content p {
  margin: 0.75em 0;
}

/* ============================================
   Wikibox (Homepage Portal Boxes)
   ============================================ */
.wikibox {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin: 1em 0;
}

.wikibox-header {
  background-color: var(--color-surface-alt);
  padding: 0.5em 1em;
  border-bottom: 1px solid var(--color-border);
}

.wikibox-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1em;
  font-weight: 600;
}

.wikibox-content {
  padding: 0.75em 1em;
}

.wikibox-content ul {
  margin: 0;
  padding-left: 1.25em;
}

.wikibox-content li {
  margin: 0.3em 0;
}

.wikibox-content p:first-child {
  margin-top: 0;
}

.wikibox-content p:last-child {
  margin-bottom: 0;
}

/* Wikibox grid for homepage layout */
.wikibox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1em;
  margin: 1.5em 0;
  clear: both;
}

.wikibox-grid .wikibox {
  margin: 0;
}

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 900px) {
  .article-layout {
    flex-direction: column;
  }

  .error-image {
    float: none;
    width: 150px;
    margin: 0 auto 1.5em;
  }

  .error-content {
    text-align: center;
  }

  .header-search {
    flex: 0;
    margin: 0 0.75em;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    right: 0;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: none;
    flex-direction: column;
    z-index: 99;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    margin: 0;
    padding: 0.75em 1.5em;
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav a:hover {
    background-color: var(--color-surface-alt);
  }

  .toc-sidebar {
    position: fixed;
    top: var(--header-height);
    left: -280px;
    width: 260px;
    height: calc(100vh - var(--header-height));
    max-height: none;
    background-color: var(--color-bg);
    border-right: 1px solid var(--color-border);
    padding: 1em;
    transition: left 0.3s ease;
    z-index: 50;
  }

  .toc-sidebar.toc-open {
    left: 0;
  }

  .toc-toggle {
    display: flex;
    align-items: center;
    gap: 0.5em;
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 60;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.5em 1em;
    color: var(--color-text);
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.9em;
  }

  .toc-toggle:hover {
    background-color: var(--color-surface-alt);
  }

  .toc-toggle.toc-active {
    background-color: var(--color-accent);
    color: var(--color-bg);
  }

  .toc-toggle svg {
    width: 18px;
    height: 18px;
  }

  .infobox {
    float: none;
    width: 100%;
    max-width: 400px;
    margin: 1em auto;
  }
}

@media (max-width: 600px) {
  .header-container {
    padding: 0 10px;
  }

  .site-title {
    font-size: 1.1em;
  }

  .site-subtitle {
    display: none;
  }

  .header-search .search-button {
    display: none;
  }

  .header-search input[type="search"] {
    border-right: 1px solid var(--color-border);
    min-width: 0;
    width: 100px;
  }

  .article-title {
    font-size: 1.5em;
  }

  h2 { font-size: 1.3em; }
  h3 { font-size: 1.15em; }
}

/* ============================================
   Pagefind Search Overrides
   ============================================ */
.search-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2em 1.5em;
}

.search-header h1 {
  font-family: var(--font-title);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.25em;
  margin-bottom: 1em;
}

:root {
  --pagefind-ui-scale: 1;
  --pagefind-ui-primary: var(--color-link);
  --pagefind-ui-text: var(--color-text);
  --pagefind-ui-background: var(--color-surface);
  --pagefind-ui-border: var(--color-border);
  --pagefind-ui-tag: var(--color-surface-alt);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: 0;
  --pagefind-ui-font: var(--font-body);
}

.pagefind-ui__result {
  border-top: 1px solid var(--color-border) !important;
  padding: 1em 0 !important;
}

.pagefind-ui__result-link {
  color: var(--color-link) !important;
}

.pagefind-ui__result-link:hover {
  color: var(--color-link-hover) !important;
}

.pagefind-ui__result-excerpt {
  color: var(--color-text-muted) !important;
}

.pagefind-ui__button {
  background: var(--color-surface-alt) !important;
  color: var(--color-text) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: 0 !important;
}

.pagefind-ui__button:hover {
  background: var(--color-border) !important;
}

/* ============================================
   Images Page
   ============================================ */
.images-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2em 1.5em;
}

.images-header h1 {
  font-family: var(--font-title);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.25em;
  margin-bottom: 1em;
}

.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5em;
}

.images-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.75em;
}

.images-card img {
  width: 100%;
  height: 150px;
  object-fit: contain;
  background-color: var(--color-surface-alt);
}

.images-card-name {
  margin-top: 0.5em;
  font-size: 0.8em;
  color: var(--color-text-muted);
  word-break: break-all;
}