@import url('https://fonts.cdnfonts.com/css/ibm-plex-mono');
/* =========================================
   Base Styles & Variables Defaults
   ========================================= */
:root {
  /* Fallback defaults if theme doesn't load */
  --body-bg: #ffffff;
  --body-text: #333333;
  --heading-color: #1a1a1a;
  --link-color: #007acc;
  --link-hover: #005a9e;
  --nav-bg: #ffffff;
  --nav-text: #333333;
  --nav-border: #e0e0e0;
  --nav-accent: #007acc;
  --code-bg: #f5f5f5;
  --code-text: #d63384;
  --input-bg: #ffffff;
  --input-border: #cccccc;
  --placeholder-text: #999999;
  --dropdown-hover: #f5f5f5;
  --scrollbar-track: #f1f1f1;
  --scrollbar-thumb: #888888;
  --scrollbar-thumb-hover: #555555;
  
  /* Transition timing */
  --theme-transition-duration: 0.4s;
  --theme-transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--body-bg);
  color: var(--body-text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  transition: 
    background-color var(--theme-transition-duration) var(--theme-transition-timing),
    color var(--theme-transition-duration) var(--theme-transition-timing);
}

main {
  max-width: 900px;
  margin: 80px auto 40px;
  padding: 20px;
  transition: background-color var(--theme-transition-duration) var(--theme-transition-timing);
}

/* =========================================
   Typography
   ========================================= */
h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color) !important; /* Force override */
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  transition: color var(--theme-transition-duration) var(--theme-transition-timing);
}

h1 { 
  font-size: 2.5em; 
  border-bottom: 1px solid var(--nav-border); 
  padding-bottom: 0.3em;
  transition: border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

h2 { 
  font-size: 2em; 
  border-bottom: 1px solid var(--nav-border); 
  padding-bottom: 0.3em;
  transition: border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

h3 { font-size: 1.5em; }

p { 
  margin-bottom: 1em;
  transition: color var(--theme-transition-duration) var(--theme-transition-timing);
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: 
    color 0.2s ease,
    background-color var(--theme-transition-duration) var(--theme-transition-timing);
}

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

/* =========================================
   Extended Markdown Elements
   ========================================= */

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  overflow-x: auto;
  display: block; /* Ensures responsiveness on small screens */
  transition: border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

table th,
table td {
  border: 1px solid var(--nav-border);
  padding: 8px 12px;
  transition: 
    border-color var(--theme-transition-duration) var(--theme-transition-timing),
    background-color var(--theme-transition-duration) var(--theme-transition-timing),
    color var(--theme-transition-duration) var(--theme-transition-timing);
}

table th {
  background-color: var(--code-bg);
  color: var(--heading-color);
  font-weight: 600;
  text-align: left;
}

table tr:nth-child(even) {
  background-color: var(--dropdown-hover); /* Zebra striping */
}

/* Blockquotes */
blockquote {
  margin: 1.5em 0;
  padding: 0.5em 1em;
  border-left: 4px solid var(--nav-accent);
  background-color: transparent;
  color: var(--placeholder-text);
  font-style: italic;
  transition: 
    border-color var(--theme-transition-duration) var(--theme-transition-timing),
    color var(--theme-transition-duration) var(--theme-transition-timing);
}

/* Task Lists (Checkboxes) */
ul.contains-task-list {
  list-style-type: none;
  padding-left: 0;
}

li.task-list-item {
  display: flex;
  align-items: center;
}

input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.1em;
  height: 1.1em;
  border: 1px solid var(--input-border);
  background-color: var(--input-bg);
  border-radius: 3px;
  margin-right: 0.5em;
  position: relative;
  cursor: pointer;
  transition: 
    background-color var(--theme-transition-duration) var(--theme-transition-timing),
    border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

input[type="checkbox"]:checked {
  background-color: var(--nav-accent);
  border-color: var(--nav-accent);
}

input[type="checkbox"]:checked::after {
  content: "✓";
  color: white;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.8em;
}

/* Lists */
ul, ol { 
  margin-left: 0em; 
  margin-bottom: 1em; 
}

li { 
  margin-bottom: 0.5em;
  transition: color var(--theme-transition-duration) var(--theme-transition-timing);
}

/* Code */
code {
  background-color: var(--code-bg);
  color: var(--code-text);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: monospace !important;
  font-size: 1rem;
  transition: 
    background-color var(--theme-transition-duration) var(--theme-transition-timing),
    color var(--theme-transition-duration) var(--theme-transition-timing);
}

pre {
  background-color: var(--code-bg);
  padding: 1em;
  border-radius: 5px;
  overflow-x: auto;
  margin-bottom: 1em;
  border: 1px solid var(--nav-border);
  transition: 
    background-color var(--theme-transition-duration) var(--theme-transition-timing),
    border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

pre code {
  background-color: transparent;
  padding: 0;
  color: inherit; /* Let syntax highlighting take over if present, or fallback to body text */
}

hr {
  border: none;
  border-top: 1px solid var(--nav-border);
  margin: 2em 0;
  transition: border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

footer {
  text-align: center;
  padding: 20px;
  margin-top: 40px;
  border-top: 1px solid var(--nav-border);
  color: var(--placeholder-text);
  transition: 
    border-color var(--theme-transition-duration) var(--theme-transition-timing),
    color var(--theme-transition-duration) var(--theme-transition-timing);
}

/* Scrollbar styling */
::-webkit-scrollbar { 
  width: 12px; 
}

::-webkit-scrollbar-track { 
  background: var(--scrollbar-track);
  transition: background var(--theme-transition-duration) var(--theme-transition-timing);
}

::-webkit-scrollbar-thumb { 
  background: var(--scrollbar-thumb); 
  border-radius: 6px; 
  border: 3px solid var(--scrollbar-track);
  transition: 
    background var(--theme-transition-duration) var(--theme-transition-timing),
    border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

::-webkit-scrollbar-thumb:hover { 
  background: var(--scrollbar-thumb-hover);
}

* { 
  scrollbar-width: thin; 
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track); 
}

/* Additional elements that should transition */
nav, .config-modal, .preview-panel, .config-section, 
.config-button, .theme-selector select, input, textarea, button {
  transition: 
    background-color var(--theme-transition-duration) var(--theme-transition-timing),
    color var(--theme-transition-duration) var(--theme-transition-timing),
    border-color var(--theme-transition-duration) var(--theme-transition-timing);
}

/* Responsive */
@media (max-width: 768px) {
  main { margin-top: 60px; padding: 15px; }
  h1 { font-size: 2em; }
  h2 { font-size: 1.5em; }
}