:root {
  --bg: #f9f9f9;
  --text: #111;
  --heading: #333;

  --border: #ccc;
  --input-bg: #fff;

  --action-bg: #eee;
  --action-text: #555;
  --action-hover-bg: #ddd;

  --button-bg: #4caf50;
  --button-bg-hover: #45a049;
  --button-text: #fff;

  --danger-bg: #c0392b;
  --danger-bg-hover: #a93226;

  --footer-bg: #f9f9f9;
  --footer-text: #333;

  --toggle-track-bg: #ddd;
  --toggle-thumb-bg: #fff;

  --link: #1a73e8;
  --link-hover: #0b57d0;

  --editor-bg: #fff;
  --editor-text: inherit;
  --editor-border: var(--border);
}

html[data-theme="dark"] {
  --bg: #333;
  --text: #f9f9f9;
  --heading: #f9f9f9;

  --border: #666;
  --input-bg: #2b2b2b;

  --action-bg: #444;
  --action-text: #eee;
  --action-hover-bg: #555;

  --footer-bg: #333;
  --footer-text: #f9f9f9;

  --toggle-track-bg: #555;

  --link: #6cb6ff;
  --link-hover: #8ecbff;

  --editor-bg: #1e1e1e;
  --editor-text: #f9f9f9;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: system-ui, Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

h1 {
  text-align: center;
  color: var(--heading);
}

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

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

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

.content {
  flex: 1;
}

.container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1rem;
}

p.centered {
  text-align: center;
}

.site-navbar {
  background-color: #1b1b1b;
}

.site-navbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: #fff;
}

.site-logo {
  width: 32px;
  height: 32px;
  border-radius: 4px;
}

.site-name {
  font-weight: bold;
  font-size: 1.1rem;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  flex: 1;
}

.site-nav a {
  color: #ccc;
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: #fff;
}

.site-navbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-search {
  position: relative;
  display: flex;
  flex-direction: row;
  gap: 0;
  margin: 0;
}

.nav-search input[type="text"] {
  width: 180px;
  padding: 0.35rem 0.6rem;
  font-size: 0.9rem;
  border: 1px solid #444;
  border-right: none;
  border-radius: 4px 0 0 4px;
  background-color: #2a2a2a;
  color: #fff;
}

.nav-search button {
  align-self: stretch;
  width: auto;
  padding: 0.35rem 0.6rem;
  border: 1px solid #444;
  border-radius: 0 4px 4px 0;
  background-color: #333;
}

.nav-search button:hover {
  background-color: #3a3a3a;
}

.nav-search button img {
  display: block;
  width: 16px;
  height: 16px;
  filter: invert(1);
}

.nav-search .search-suggestions {
  width: 260px;
  color: var(--text);
}

.theme_toggle {
  cursor: pointer;
}

.toggle_track {
  position: relative;
  width: 64px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  background: var(--toggle-track-bg);
  border-radius: 16px;
}

.toggle_thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 26px;
  height: 26px;
  background: var(--toggle-thumb-bg);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

html[data-theme="dark"] .toggle_thumb {
  transform: translateX(32px);
}

.icon {
  width: 16px;
  height: 16px;
  z-index: 1;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

html:not([data-theme="dark"]) .icon.sun {
  opacity: 1;
}

html:not([data-theme="dark"]) .icon.moon {
  opacity: 0.3;
}

html[data-theme="dark"] .icon.sun {
  opacity: 0.3;
}

html[data-theme="dark"] .icon.moon {
  opacity: 1;
}

.hero {
  background-color: #141414;
  color: #fff;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.hero-title {
  margin: 0;
  text-align: left;
  color: #fff;
  font-size: 2.5rem;
}

.hero-search {
  position: relative;
  display: flex;
  flex-direction: row;
  gap: 0;
  margin: 0;
  width: 100%;
  max-width: 420px;
}

.hero-search input[type="text"] {
  flex: 1;
  border-radius: 4px 0 0 4px;
  border-right: none;
}

.hero-search button {
  align-self: stretch;
  width: auto;
  padding: 0.5rem 1.25rem;
  border-radius: 0 4px 4px 0;
  background-color: #2f6fed;
}

.hero-search button:hover {
  background-color: #2558c2;
}

.hero-search .search-suggestions {
  color: var(--text);
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.quick-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem 1rem;
  border-radius: 6px;
  background-color: #2a2a2a;
  color: #fff;
  text-decoration: none;
  text-align: center;
  transition: background-color 0.2s ease;
}

.quick-link-card:hover {
  background-color: #383838;
}

.quick-link-icon {
  width: 32px;
  height: 32px;
}

.quick-link-icon svg {
  width: 100%;
  height: 100%;
}

.quick-link-icon-img img {
  width: 100%;
  height: 100%;
  filter: invert(1);
}

.quick-link-label {
  font-weight: bold;
  font-size: 0.95rem;
}

.accordion {
  margin-bottom: 0.75rem;
  border-radius: 4px;
  overflow: hidden;
  background-color: #4a4a4a;
}

.accordion-summary {
  padding: 0.75rem 1rem;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  list-style: none;
}

.accordion-summary::-webkit-details-marker {
  display: none;
}

.accordion-summary::before {
  content: '\25B8';
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.2s ease;
}

.accordion[open] .accordion-summary::before {
  transform: rotate(90deg);
}

.accordion-content {
  padding: 1rem;
  background-color: var(--bg);
  color: var(--text);
}


form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

label {
  font-weight: bold;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 0.5rem;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background-color: var(--input-bg);
  color: var(--text);
}

button,
.btn-create {
  align-self: flex-start;
  width: 120px;
  padding: 0.5rem;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  background-color: var(--button-bg);
  color: var(--button-text);
  cursor: pointer;
}

button:hover,
.btn-create:hover {
  background-color: var(--button-bg-hover);
}

.delete-btn {
  margin-top: 1rem;
  background-color: var(--danger-bg);
  color: #fff;
}

.delete-btn:hover {
  background-color: var(--danger-bg-hover);
}

.actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.actions a {
  text-decoration: none;
  color: var(--action-text);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background-color: var(--action-bg);
}

.actions a:hover {
  background-color: var(--action-hover-bg);
}

.errors {
  color: var(--danger-bg);
}

.search-suggestions {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  background-color: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  z-index: 10;
}

.search-suggestions.open {
  display: block;
}

.search-suggestions li a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--text);
  text-decoration: none;
}

.search-suggestions li a:hover,
.search-suggestions li a:focus {
  background-color: var(--action-bg);
}

.instructions p {
  margin: 0.4em 0;
  line-height: 1.3;
}

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

footer {
  width: 100%;
  background-color: var(--footer-bg);
  color: var(--footer-text);
}

.footer-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
  text-align: center;
}

html[data-theme="dark"] .editor-toolbar,
html[data-theme="dark"] .CodeMirror {
  background-color: var(--editor-bg);
  color: var(--editor-text);
  border-color: var(--border);
}

html[data-theme="dark"] .editor-toolbar button {
  color: #ddd;
}

html[data-theme="dark"] .editor-toolbar button:hover {
  background-color: #3a3a3a;
}

html[data-theme="dark"] .CodeMirror-gutters {
  background-color: var(--editor-bg);
  border-right: 1px solid var(--border);
}

html[data-theme="dark"] .CodeMirror-cursor {
  border-left: 1px solid #fff;
}

html[data-theme="dark"] .CodeMirror-selected,
html[data-theme="dark"] .CodeMirror-line::selection,
html[data-theme="dark"] .CodeMirror-line > span::selection {
  background-color: #555 !important;
}