/* ========================================
   Neiki's Markdown Editor — style.css
   ======================================== */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --header-height: 50px;
  --toolbar-height: 42px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* Light theme (default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-header: #24292f;
  --bg-toolbar: #f0f2f5;
  --bg-editor: #ffffff;
  --bg-preview: #ffffff;
  --bg-divider: #d0d7de;
  --bg-divider-hover: #0969da;
  --text-primary: #1f2328;
  --text-secondary: #656d76;
  --text-header: #ffffff;
  --border-color: #d0d7de;
  --btn-hover: #e2e5e9;
  --shadow: 0 1px 3px rgba(0,0,0,0.12);
  --accent-color: #58a6ff;
}

[data-color-mode="dark"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-header: #161b22;
  --bg-toolbar: #1c2128;
  --bg-editor: #0d1117;
  --bg-preview: #0d1117;
  --bg-divider: #30363d;
  --bg-divider-hover: #58a6ff;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-header: #e6edf3;
  --border-color: #30363d;
  --btn-hover: #30363d;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --accent-color: #58a6ff;
}

/* Dracula theme — exact palette from https://draculatheme.com */
[data-color-mode="dracula"] {
  --bg-primary: #282a36;
  --bg-secondary: #21222c;
  --bg-header: #21222c;
  --bg-toolbar: #21222c;
  --bg-editor: #282a36;
  --bg-preview: #282a36;
  --bg-divider: #44475a;
  --bg-divider-hover: #bd93f9;
  --text-primary: #f8f8f2;
  --text-secondary: #6272a4;
  --text-header: #f8f8f2;
  --border-color: #44475a;
  --btn-hover: #44475a;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --accent-color: #bd93f9;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: background 0.2s, color 0.2s;
}

/* ---------- Header ---------- */
#app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--bg-header);
  color: var(--text-header);
  box-shadow: var(--shadow);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  color: #58a6ff;
  flex-shrink: 0;
}

.logo-img {
  display: block;
}

.app-title {
  font-size: 1.4rem;
  font-weight: 700;
  white-space: nowrap;
  color: #58A6FF;
  font-family: "JetBrains Mono", monospace;
  transform: translateY(2px);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  background: transparent;
  color: var(--text-header);
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
  white-space: nowrap;
}

.header-btn:hover {
  background: rgba(255,255,255,0.1);
}

.header-btn.icon-only {
  padding: 5px 8px;
}

.header-btn svg {
  flex-shrink: 0;
}

/* Theme toggle icon visibility */
[data-color-mode="light"] .icon-sun { display: none; }
[data-color-mode="dark"] .icon-moon { display: none; }
[data-color-mode="dracula"] .icon-moon { display: none; }

.github-btn {
  background: rgba(255,255,255,0.08);
}

/* ---------- Toolbar ---------- */
#toolbar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: 99;
  height: var(--toolbar-height);
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 0 12px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  overflow-y: hidden;
  transition: background 0.2s, border-color 0.2s;
}

#toolbar::-webkit-scrollbar {
  height: 4px;
}

#toolbar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

#toolbar button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 30px;
  padding: 0 8px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s;
  flex-shrink: 0;
}

/* Dracula — toolbar icons in the signature pink-purple accent */
[data-color-mode="dracula"] #toolbar button {
  color: #bd93f9;
}

#toolbar button:hover {
  background: var(--btn-hover);
}

#toolbar button svg {
  flex-shrink: 0;
}

.toolbar-sep {
  width: 1px;
  height: 20px;
  background: var(--border-color);
  margin: 0 4px;
  flex-shrink: 0;
}

.toolbar-spacer {
  flex: 1 1 auto;
  min-width: 8px;
}

/* ---------- Toolbar: More dropdown ---------- */
.toolbar-more-wrap {
  position: relative;
  flex-shrink: 0;
}

#btn-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 30px;
  padding: 0 8px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s;
}

#btn-more:hover,
#btn-more.active {
  background: var(--btn-hover);
}

.dropdown-menu {
  display: none;
  position: fixed;
  z-index: 500;
  min-width: 180px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  padding: 6px;
}

.dropdown-menu.show {
  display: block;
  animation: dropdown-in 0.12s ease;
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-label {
  padding: 6px 10px 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 10px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  text-align: left;
  cursor: pointer;
  transition: background 0.12s;
}

.dropdown-item:hover {
  background: var(--btn-hover);
}

.dropdown-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.dropdown-item-icon.dracula-swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, #bd93f9, #ff79c6);
}

.dropdown-item span:nth-child(2) {
  flex: 1;
}

.dropdown-item-check {
  flex-shrink: 0;
  color: var(--accent-color);
  visibility: hidden;
}

.dropdown-item.active .dropdown-item-check {
  visibility: visible;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 6px 4px;
}

/* ---------- Toolbar: Find & Replace panel ---------- */
#find-panel {
  display: none;
  position: fixed;
  top: calc(var(--header-height) + var(--toolbar-height) + 8px);
  right: 16px;
  z-index: 150;
  width: 300px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  padding: 8px;
}

#find-panel.show {
  display: block;
  animation: dropdown-in 0.12s ease;
}

.find-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 2px;
  color: var(--text-secondary);
}

.find-row input {
  flex: 1;
  min-width: 0;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
}

.find-row input:focus {
  outline: none;
  border-color: var(--accent-color);
}

#find-count {
  font-size: 12px;
  white-space: nowrap;
  min-width: 40px;
  text-align: center;
  flex-shrink: 0;
}

.find-row button {
  flex-shrink: 0;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: transparent;
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.12s;
}

.find-row button:hover {
  background: var(--btn-hover);
}

/* ---------- Copy / Fullscreen feedback ---------- */
#btn-copy.copied {
  color: #3fb950;
}

/* ---------- Help modal ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: center;
}

.modal-overlay.show {
  display: flex;
  animation: dropdown-in 0.15s ease;
}

.modal {
  width: 340px;
  max-width: calc(100vw - 32px);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.35);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
}

.modal-close:hover {
  background: var(--btn-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px 20px;
  text-align: center;
}

.modal-logo {
  width: 200px;
  max-width: 100%;
  height: auto;
  margin: 0 auto 16px;
  display: block;
}

.modal-info {
  font-size: 13px;
  line-height: 2;
  color: var(--text-primary);
  text-align: left;
}

.modal-info a {
  color: var(--accent-color);
  text-decoration: none;
}

.modal-info a:hover {
  text-decoration: underline;
}

/* ---------- Mobile Tab Switcher ---------- */
#mobile-tabs {
  display: none;
  position: fixed;
  top: calc(var(--header-height) + var(--toolbar-height));
  left: 0;
  right: 0;
  z-index: 98;
  height: 38px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-color);
}

#mobile-tabs .mobile-tab {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

#mobile-tabs .mobile-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-color);
}

/* ---------- Split Container ---------- */
#split-container {
  position: fixed;
  top: calc(var(--header-height) + var(--toolbar-height));
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  overflow: hidden;
}

.pane {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#editor-pane {
  flex: 1 1 50%;
  min-width: 0;
  overflow: hidden;
}

#preview-pane {
  flex: 1 1 50%;
  min-width: 0;
  overflow-y: auto;
  background: var(--bg-preview);
  transition: background 0.2s;
}

/* ---------- Editor ---------- */
#editor {
  width: 100%;
  height: 100%;
  padding: 20px;
  border: none;
  outline: none;
  resize: none;
  background: var(--bg-editor);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  tab-size: 4;
  -moz-tab-size: 4;
  transition: background 0.2s, color 0.2s;
}

#editor::placeholder {
  color: var(--text-secondary);
}

/* ---------- Preview ---------- */
#preview {
  padding: 24px 32px;
  min-height: 100%;
}

#preview.markdown-body {
  font-size: 16px;
  line-height: 1.6;
}

/* Override github-markdown-css background */
[data-color-mode="light"] #preview.markdown-body {
  background-color: #ffffff;
  color: #1f2328;
}

[data-color-mode="dark"] #preview.markdown-body {
  background-color: #0d1117;
  color: #e6edf3;
}

/* Dracula preview recoloring */
[data-color-mode="dracula"] #preview.markdown-body {
  background-color: #282a36;
  color: #f8f8f2;
}

[data-color-mode="dracula"] #preview.markdown-body a { color: #8be9fd; }

[data-color-mode="dracula"] #preview.markdown-body h1,
[data-color-mode="dracula"] #preview.markdown-body h2 {
  border-bottom-color: #44475a;
}

[data-color-mode="dracula"] #preview.markdown-body blockquote {
  color: #6272a4;
  border-left-color: #bd93f9;
}

[data-color-mode="dracula"] #preview.markdown-body code,
[data-color-mode="dracula"] #preview.markdown-body tt {
  background-color: rgba(189, 147, 249, 0.15);
  color: #f8f8f2;
}

[data-color-mode="dracula"] #preview.markdown-body pre {
  background-color: #21222c;
}

[data-color-mode="dracula"] #preview.markdown-body pre code {
  background-color: transparent;
}

/* Highlight.js syntax highlighting — Dracula palette, scoped to the preview so
   it activates only in Dracula mode. Verified pixel-by-pixel against the real
   VS Code Dracula theme for HTML/JavaScript, and against the official color
   spec (draculatheme.com/spec) for CSS. No bold/italic beyond what that
   reference actually uses: comments are upright, only "this"/params/class
   names carry italics where the reference shows them. */
[data-color-mode="dracula"] #preview.markdown-body .hljs {
  color: #f8f8f2;
  background: transparent;
}

/* Comments — muted blue, upright (not italic) */
[data-color-mode="dracula"] #preview.markdown-body .hljs-comment,
[data-color-mode="dracula"] #preview.markdown-body .hljs-quote,
[data-color-mode="dracula"] #preview.markdown-body .hljs-deletion {
  color: #6272a4;
}

/* Keywords, storage, control flow; CSS element/tag selectors (body, div, ...) */
[data-color-mode="dracula"] #preview.markdown-body .hljs-keyword,
[data-color-mode="dracula"] #preview.markdown-body .hljs-selector-tag {
  color: #ff79c6;
}

/* Class/type names; built-ins & library calls; CSS property names */
[data-color-mode="dracula"] #preview.markdown-body .hljs-title.class_,
[data-color-mode="dracula"] #preview.markdown-body .hljs-class .hljs-title,
[data-color-mode="dracula"] #preview.markdown-body .hljs-type,
[data-color-mode="dracula"] #preview.markdown-body .hljs-built_in,
[data-color-mode="dracula"] #preview.markdown-body .hljs-section,
[data-color-mode="dracula"] #preview.markdown-body .hljs-link,
[data-color-mode="dracula"] #preview.markdown-body .hljs-attribute {
  color: #8be9fd;
}

/* Function/method names & calls */
[data-color-mode="dracula"] #preview.markdown-body .hljs-title.function_,
[data-color-mode="dracula"] #preview.markdown-body .hljs-title.method_ {
  color: #50fa7b;
}

/* PascalCase const/let/var bindings (e.g. "const Dracula = new Vampire()"):
   emitted directly by highlightJsDracula() in app.js — the instance "Dracula"
   reads purple, distinct from the class reference "Vampire" (cyan) */
[data-color-mode="dracula"] #preview.markdown-body .drc-instance {
  color: #bd93f9;
}

/* Contextual punctuation, emitted directly by highlightJsDracula() in app.js:
   pink for a function/method declaration's own "( )", a function/method body
   or object literal's "{ }", and other bare operators (=, -, :, ...); cyan
   for a call's "( )" (e.g. this.calcAge()). A `new X(...)` constructor call's
   parens and a class body's "{ }" are intentionally left unstyled (foreground). */
[data-color-mode="dracula"] #preview.markdown-body .drc-punct-pink {
  color: #ff79c6;
}

[data-color-mode="dracula"] #preview.markdown-body .drc-punct-cyan {
  color: #8be9fd;
}

/* CSS id/class selectors (#dracula, .foo) */
[data-color-mode="dracula"] #preview.markdown-body .hljs-selector-id,
[data-color-mode="dracula"] #preview.markdown-body .hljs-selector-class {
  color: #50fa7b;
}

/* Function/call parameters — italic, matches the reference */
[data-color-mode="dracula"] #preview.markdown-body .hljs-params {
  color: #ffb86c;
  font-style: italic;
}

/* Strings, HTML/XML tag names, escape sequences, markup text */
[data-color-mode="dracula"] #preview.markdown-body .hljs-string,
[data-color-mode="dracula"] #preview.markdown-body .hljs-meta,
[data-color-mode="dracula"] #preview.markdown-body .hljs-name,
[data-color-mode="dracula"] #preview.markdown-body .hljs-doctag,
[data-color-mode="dracula"] #preview.markdown-body .hljs-regexp,
[data-color-mode="dracula"] #preview.markdown-body .hljs-symbol,
[data-color-mode="dracula"] #preview.markdown-body .hljs-bullet,
[data-color-mode="dracula"] #preview.markdown-body .hljs-addition,
[data-color-mode="dracula"] #preview.markdown-body .hljs-template-tag,
[data-color-mode="dracula"] #preview.markdown-body .hljs-template-variable {
  color: #f1fa8c;
}

/* Instance reserved words (this, self, super) — italic purple */
[data-color-mode="dracula"] #preview.markdown-body .hljs-variable.language_ {
  color: #bd93f9;
  font-style: italic;
}

/* Numbers, booleans, null/undefined, CSS numeric & color values */
[data-color-mode="dracula"] #preview.markdown-body .hljs-literal,
[data-color-mode="dracula"] #preview.markdown-body .hljs-number {
  color: #bd93f9;
}

/* Object keys / HTML attribute names / plain variables & properties all stay
   on foreground — the reference doesn't tint them (only the ":" separator,
   which highlight.js renders as plain text and can't be targeted, is pink). */

[data-color-mode="dracula"] #preview.markdown-body .hljs-strong {
  font-weight: 700;
}

[data-color-mode="dracula"] #preview.markdown-body .hljs-emphasis {
  font-style: italic;
}

[data-color-mode="dracula"] #preview.markdown-body hr {
  background-color: #44475a;
}

[data-color-mode="dracula"] #preview.markdown-body table th,
[data-color-mode="dracula"] #preview.markdown-body table td {
  border-color: #44475a;
}

[data-color-mode="dracula"] #preview.markdown-body table tr {
  background-color: #282a36;
  border-top-color: #44475a;
}

[data-color-mode="dracula"] #preview.markdown-body table tr:nth-child(2n) {
  background-color: #21222c;
}

/* Task list styling */
#preview .task-list-item {
  list-style: none;
}

#preview .task-list-item input[type="checkbox"] {
  margin-right: 6px;
}

/* ---------- Divider ---------- */
#divider {
  width: 8px;
  cursor: col-resize;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s;
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Grab handle dots */
#divider::before {
  content: '';
  width: 4px;
  height: 28px;
  border-radius: 2px;
  background: var(--border-color);
  transition: background 0.2s, height 0.2s;
}

#divider:hover,
#divider.dragging {
  background: var(--btn-hover);
}

#divider:hover::before,
#divider.dragging::before {
  background: var(--bg-divider-hover);
  height: 36px;
}

/* ---------- Responsive (≤ 960px) ---------- */
@media (max-width: 960px) {
  .header-btn span {
    display: none;
  }

  .header-btn {
    padding: 5px 8px;
    gap: 0;
  }

  .header-right {
    gap: 6px;
  }
}

/* ---------- Responsive (≤ 768px) ---------- */
@media (max-width: 768px) {
  #app-header {
    padding: 0 10px;
    height: 46px;
  }

  :root {
    --header-height: 46px;
  }

  .header-left {
    gap: 8px;
    min-width: 0;
  }

  .logo-icon {
    width: 22px;
    height: 22px;
  }

  .app-title {
    font-size: 1.0rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .header-right {
    gap: 4px;
  }

  .header-btn {
    padding: 4px 6px;
    border-radius: 5px;
  }

  .header-btn.icon-only {
    padding: 4px 5px;
  }

  .header-btn svg {
    width: 16px;
    height: 16px;
  }

  #mobile-tabs {
    display: flex;
  }

  #split-container {
    top: calc(var(--header-height) + var(--toolbar-height) + 38px);
    flex-direction: column;
  }

  #divider {
    display: none;
  }

  #editor-pane,
  #preview-pane {
    flex: none;
    width: 100% !important;
    height: 100%;
  }

  /* Hide/show panes based on active tab */
  #split-container.show-editor #editor-pane {
    display: flex;
  }
  #split-container.show-editor #preview-pane {
    display: none;
  }
  #split-container.show-preview #editor-pane {
    display: none;
  }
  #split-container.show-preview #preview-pane {
    display: flex;
  }

  #preview {
    padding: 16px;
  }
}

/* ---------- Responsive (≤ 480px) ---------- */
@media (max-width: 480px) {
  #app-header {
    padding: 0 8px;
    height: 42px;
  }

  :root {
    --header-height: 42px;
  }

  .app-title {
    font-size: 0.8rem;
  }

  .logo-icon {
    width: 20px;
    height: 20px;
  }

  .header-right {
    gap: 3px;
  }

  .header-btn {
    padding: 3px 5px;
    border-radius: 4px;
    border-width: 0;
    background: rgba(255,255,255,0.06);
  }

  .header-btn svg {
    width: 15px;
    height: 15px;
  }

  /* Hide GitHub button text + border on very small screens */
  .github-btn span {
    display: none;
  }

  #toolbar {
    padding: 0 8px;
    gap: 1px;
  }

  #toolbar button {
    min-width: 28px;
    height: 28px;
    padding: 0 5px;
  }
}

/* ---------- Selection & Scrollbar ---------- */
#editor::selection {
  background: rgba(9, 105, 218, 0.3);
}

[data-color-mode="dark"] #editor::selection {
  background: rgba(88, 166, 255, 0.3);
}

[data-color-mode="dracula"] #editor::selection {
  background: rgba(189, 147, 249, 0.35);
}

/* Shared scrollbar style for both panes */
#preview-pane::-webkit-scrollbar,
#editor-pane::-webkit-scrollbar,
#editor::-webkit-scrollbar {
  width: 8px;
}

#preview-pane::-webkit-scrollbar-track,
#editor-pane::-webkit-scrollbar-track,
#editor::-webkit-scrollbar-track {
  background: transparent;
}

#preview-pane::-webkit-scrollbar-thumb,
#editor-pane::-webkit-scrollbar-thumb,
#editor::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

#preview-pane::-webkit-scrollbar-thumb:hover,
#editor-pane::-webkit-scrollbar-thumb:hover,
#editor::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* Firefox scrollbar */
#preview-pane,
#editor-pane,
#editor {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* ---------- Utility ---------- */
.no-select {
  user-select: none;
  -webkit-user-select: none;
}

/* Code block overflow in preview */
#preview pre {
  overflow-x: auto;
}

#preview pre code {
  font-family: var(--font-mono);
  font-size: 13.6px;
}

/* Ensure images don't overflow */
#preview img {
  max-width: 100%;
}