/* CODE BY AKSHIT SUTHAR */

:root {
  --font-sans: "Space Grotesk", "Plus Jakarta Sans", "Noto Sans", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", "Fira Code", monospace;
  --bg-color: #f5f7fb;
  --bg-gradient: radial-gradient(1200px 600px at 10% -10%, rgba(31, 157, 138, 0.14), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(244, 166, 42, 0.12), transparent 55%),
    linear-gradient(180deg, #f7f8fb 0%, #f1f5f9 100%);
  --editor-bg: #f9fafb;
  --preview-bg: #ffffff;
  --surface: #ffffff;
  --surface-elevated: rgba(255, 255, 255, 0.85);
  --text-color: #1f2937;
  --preview-text-color: #1f2937;
  --border-color: #e2e8f0;
  --header-bg: rgba(255, 255, 255, 0.7);
  --button-bg: rgba(255, 255, 255, 0.8);
  --button-hover: rgba(243, 244, 246, 0.95);
  --button-active: rgba(226, 232, 240, 0.9);
  --dropzone-bg: rgba(255, 255, 255, 0.75);
  --scrollbar-thumb: #b6c2d1;
  --scrollbar-track: #eef2f7;
  --accent-color: #1f9d8a;
  --accent-rgb: 31, 157, 138;
  --accent-2: #f4a62a;
  --table-bg: #ffffff;
  --code-bg: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 18px 60px rgba(15, 23, 42, 0.16);
}

[data-theme="dark"] {
  --bg-color: #0b0f14;
  --bg-gradient: radial-gradient(1200px 600px at 10% -10%, rgba(72, 209, 184, 0.12), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(244, 166, 42, 0.12), transparent 55%),
    linear-gradient(180deg, #0b0f14 0%, #0f172a 100%);
  --editor-bg: #111827;
  --preview-bg: #0b0f14;
  --surface: #101826;
  --surface-elevated: rgba(16, 24, 38, 0.85);
  --text-color: #e2e8f0;
  --preview-text-color: #e2e8f0;
  --border-color: #263041;
  --header-bg: rgba(16, 24, 38, 0.7);
  --button-bg: rgba(16, 24, 38, 0.75);
  --button-hover: rgba(30, 41, 59, 0.9);
  --button-active: rgba(51, 65, 85, 0.9);
  --dropzone-bg: rgba(16, 24, 38, 0.75);
  --scrollbar-thumb: #3b475c;
  --scrollbar-track: #111827;
  --accent-color: #48d1b8;
  --accent-rgb: 72, 209, 184;
  --accent-2: #f6b04a;
  --table-bg: #101826;
  --code-bg: #0f172a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 60px rgba(0, 0, 0, 0.55);
}

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

body {
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  font-family: var(--font-sans);
  letter-spacing: 0.1px;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}

body::before {
  top: -160px;
  left: -120px;
  background: rgba(var(--accent-rgb), 0.35);
}

body::after {
  bottom: -200px;
  right: -140px;
  background: rgba(244, 166, 42, 0.25);
}

.app-header {
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  transition: background-color 0.3s ease;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

.app-container {
  height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  animation: appFade 0.6s ease;
}

.content-container {
  display: flex;
  flex: 1;
  overflow: hidden;
  gap: 12px;
  padding: 12px 14px 16px;
}

.app-logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  margin-right: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: #0b0f14;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.9), rgba(244, 166, 42, 0.9));
  box-shadow: var(--shadow-md);
  letter-spacing: 0.5px;
}
.editor-pane,
.preview-pane {
  flex: 1;
  padding: 18px;
  overflow-y: auto;
  position: relative;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  background: var(--surface);
}

.editor-pane {
  background-color: var(--preview-bg);
  padding-right: 0px;
}

.preview-pane {
  background-color: var(--preview-bg);
}

.editor-pane::-webkit-scrollbar,
.preview-pane::-webkit-scrollbar,
#markdown-editor::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.editor-pane::-webkit-scrollbar-track,
.preview-pane::-webkit-scrollbar-track,
#markdown-editor::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

.editor-pane::-webkit-scrollbar-thumb,
.preview-pane::-webkit-scrollbar-thumb,
#markdown-editor::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

.editor-pane::-webkit-scrollbar-thumb:hover,
.preview-pane::-webkit-scrollbar-thumb:hover,
#markdown-editor::-webkit-scrollbar-thumb:hover {
  background: var(--button-active);
}

#markdown-editor {
  width: 100%;
  height: 100%;
  border: none;
  background-color: transparent;
  color: var(--text-color);
  resize: none;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  padding: 12px 10px;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-y: auto;
}

#markdown-editor:focus {
  outline: none;
}

.preview-pane {
  padding: 20px;
}

.markdown-body {
  padding: 20px;
  width: 100%;
  background-color: var(--preview-bg);
  color: var(--preview-text-color);
  font-family: var(--font-sans);
  line-height: 1.7;
}

/* Style tables in light mode */
.markdown-body table {
  background-color: var(--table-bg);
  border-color: var(--border-color);
}

.markdown-body table tr {
  background-color: var(--table-bg);
  border-top: 1px solid var(--border-color);
}

.markdown-body table tr:nth-child(2n) {
  background-color: var(--bg-color);
}

/* Style code blocks in light mode */
.markdown-body pre {
  background-color: var(--code-bg);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.markdown-body code {
  background-color: var(--code-bg);
  border-radius: 6px;
  padding: 0.2em 0.4em;
}

@keyframes appFade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toolbar {
  display: flex;
  gap: 8px;
}

.tool-button {
  background-color: var(--button-bg);
  border: 1px solid color-mix(in srgb, var(--border-color), transparent 20%);
  color: var(--text-color);
  border-radius: 10px;
  padding: 7px 14px;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.tool-button:hover {
  background-color: var(--button-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.tool-button:active {
  background-color: var(--button-active);
  transform: translateY(0);
}

.tool-button i {
  font-size: 16px;
}

.file-input {
  display: none;
}

.dropzone {
  border: 2px dashed color-mix(in srgb, var(--border-color), transparent 15%);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
  margin-bottom: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: var(--dropzone-bg);
  box-shadow: var(--shadow-sm);
}

.dropzone.active {
  border-color: var(--accent-color);
  background-color: rgba(var(--accent-rgb), 0.08);
}

.dropzone p {
  transition: transform 0.2s ease;
}

.dropzone:hover p {
  transform: scale(1.02);
}

/* Dropdown improvements */
.dropdown-menu {
  background-color: var(--bg-color);
  border-color: var(--border-color);
}

.dropdown-item {
  color: var(--text-color);
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: var(--button-hover);
  color: var(--text-color);
}

/* Responsive design for mobile */
@media (max-width: 1080px) {
  .content-container {
    flex-direction: column;
  }
  
  .editor-pane, .preview-pane {
    flex: none;
    height: 50%;
    border-right: none;
  }
  
  .editor-pane {
    border-bottom: none;
  }
  
  .toolbar {
      flex-wrap: wrap;
      justify-content: center;
      gap: 1rem;
  }
}

/* Loading indicators */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Focus outline for accessibility */
button:focus, 
a:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Animation for copied message */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Tooltip styles */
.tooltip {
  position: absolute;
  background: var(--button-bg);
  border: 1px solid var(--border-color);
  padding: 5px 8px;
  border-radius: 4px;
  font-size: 12px;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

/* Styles for GitHub markdown preview light mode */
.markdown-body {
  color-scheme: light;
  --color-prettylights-syntax-comment: #6a737d;
  --color-prettylights-syntax-constant: #005cc5;
  --color-prettylights-syntax-entity: #6f42c1;
  --color-prettylights-syntax-storage-modifier-import: #24292e;
  --color-prettylights-syntax-entity-tag: #22863a;
  --color-prettylights-syntax-keyword: #d73a49;
  --color-prettylights-syntax-string: #032f62;
  --color-prettylights-syntax-variable: #e36209;
  --color-prettylights-syntax-brackethighlighter-unmatched: #b31d28;
  --color-prettylights-syntax-invalid-illegal-text: #fafbfc;
  --color-prettylights-syntax-invalid-illegal-bg: #b31d28;
  --color-prettylights-syntax-carriage-return-text: #fafbfc;
  --color-prettylights-syntax-carriage-return-bg: #d73a49;
  --color-prettylights-syntax-string-regexp: #22863a;
  --color-prettylights-syntax-markup-list: #735c0f;
  --color-prettylights-syntax-markup-heading: #005cc5;
  --color-prettylights-syntax-markup-italic: #24292e;
  --color-prettylights-syntax-markup-bold: #24292e;
  --color-prettylights-syntax-markup-deleted-text: #b31d28;
  --color-prettylights-syntax-markup-deleted-bg: #ffeef0;
  --color-prettylights-syntax-markup-inserted-text: #22863a;
  --color-prettylights-syntax-markup-inserted-bg: #f0fff4;
  --color-prettylights-syntax-markup-changed-text: #e36209;
  --color-prettylights-syntax-markup-changed-bg: #ffebda;
  --color-prettylights-syntax-markup-ignored-text: #f6f8fa;
  --color-prettylights-syntax-markup-ignored-bg: #005cc5;
  --color-prettylights-syntax-meta-diff-range: #6f42c1;
  --color-prettylights-syntax-brackethighlighter-angle: #586069;
  --color-prettylights-syntax-sublimelinter-gutter-mark: #e1e4e8;
  --color-prettylights-syntax-constant-other-reference-link: #032f62;
  --color-fg-default: #24292e;
  --color-fg-muted: #586069;
  --color-fg-subtle: #6a737d;
  --color-canvas-default: #ffffff;
  --color-canvas-subtle: #f6f8fa;
  --color-border-default: #e1e4e8;
  --color-border-muted: #eaecef;
  --color-neutral-muted: rgba(175,184,193,0.2);
  --color-accent-fg: #0366d6;
  --color-accent-emphasis: #0366d6;
  --color-attention-subtle: #fff5b1;
  --color-danger-fg: #d73a49;
}

/* Styles for GitHub markdown preview dark mode */
[data-theme="dark"] .markdown-body {
  color-scheme: dark;
  --color-prettylights-syntax-comment: #8b949e;
  --color-prettylights-syntax-constant: #79c0ff;
  --color-prettylights-syntax-entity: #d2a8ff;
  --color-prettylights-syntax-storage-modifier-import: #c9d1d9;
  --color-prettylights-syntax-entity-tag: #7ee787;
  --color-prettylights-syntax-keyword: #ff7b72;
  --color-prettylights-syntax-string: #a5d6ff;
  --color-prettylights-syntax-variable: #ffa657;
  --color-prettylights-syntax-brackethighlighter-unmatched: #f85149;
  --color-prettylights-syntax-invalid-illegal-text: #f0f6fc;
  --color-prettylights-syntax-invalid-illegal-bg: #8e1519;
  --color-prettylights-syntax-carriage-return-text: #f0f6fc;
  --color-prettylights-syntax-carriage-return-bg: #b62324;
  --color-prettylights-syntax-string-regexp: #7ee787;
  --color-prettylights-syntax-markup-list: #f2cc60;
  --color-prettylights-syntax-markup-heading: #1f6feb;
  --color-prettylights-syntax-markup-italic: #c9d1d9;
  --color-prettylights-syntax-markup-bold: #c9d1d9;
  --color-prettylights-syntax-markup-deleted-text: #ffdcd7;
  --color-prettylights-syntax-markup-deleted-bg: #67060c;
  --color-prettylights-syntax-markup-inserted-text: #aff5b4;
  --color-prettylights-syntax-markup-inserted-bg: #033a16;
  --color-prettylights-syntax-markup-changed-text: #ffdfb6;
  --color-prettylights-syntax-markup-changed-bg: #5a1e02;
  --color-prettylights-syntax-markup-ignored-text: #c9d1d9;
  --color-prettylights-syntax-markup-ignored-bg: #1158c7;
  --color-prettylights-syntax-meta-diff-range: #d2a8ff;
  --color-prettylights-syntax-brackethighlighter-angle: #8b949e;
  --color-prettylights-syntax-sublimelinter-gutter-mark: #484f58;
  --color-prettylights-syntax-constant-other-reference-link: #a5d6ff;
  --color-fg-default: #c9d1d9;
  --color-fg-muted: #8b949e;
  --color-fg-subtle: #484f58;
  --color-canvas-default: #0d1117;
  --color-canvas-subtle: #161b22;
  --color-border-default: #30363d;
  --color-border-muted: #21262d;
  --color-neutral-muted: rgba(110,118,129,0.4);
  --color-accent-fg: #58a6ff;
  --color-accent-emphasis: #1f6feb;
  --color-attention-subtle: rgba(187,128,9,0.15);
  --color-danger-fg: #f85149;
}

/* Override specific styles for dark mode tables and code */
[data-theme="dark"] .markdown-body table tr {
  background-color: var(--table-bg);
}

[data-theme="dark"] .markdown-body table tr:nth-child(2n) {
  background-color: #1c2128; /* Slightly lighter than base dark background */
}

[data-theme="dark"] .markdown-body pre {
  background-color: var(--code-bg);
}

[data-theme="dark"] .markdown-body code {
  background-color: var(--code-bg);
}

[data-theme="dark"] .hljs {
  color: #e8eaed;
}

.stats-container {
  font-size: 0.9rem;
  color: var(--text-color);
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 6px 14px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.stat-item {
  align-items: center;
}

.stat-item i {
  font-size: 1rem;
  opacity: 0.8;
  color: var(--accent-color);
}

.dropzone {
  border: 2px dashed color-mix(in srgb, var(--border-color), transparent 15%);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: var(--dropzone-bg);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.dropzone.active {
  border-color: var(--accent-color);
  background-color: rgba(var(--accent-rgb), 0.08);
}

.dropzone p {
  transition: transform 0.2s ease;
}

.dropzone:hover {
  border: var(--accent-color) 2px dashed;
}

.dropzone:hover p {
  transform: scale(1.02);
}

.close-btn {
  position: absolute;
  top: 5px;
  right: 5px;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1rem;
  cursor: pointer;
  padding: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  opacity: 0.6;
  transition: all 0.2s ease;
  background-color: var(--button-bg);
  border: 1px solid var(--border-color);
}

.close-btn:hover {
  opacity: 1;
  background-color: var(--color-danger-fg);
}

.editor-pane {
  overflow: hidden;
}

/* Mobile Menu Styles */
.mobile-menu {
  display: none;
  position: relative;
  z-index: 1001;
}

@media (max-width: 1080px) {
  .mobile-menu {
    display: block;
  }
}

/* slide‑in panel */
.mobile-menu-panel {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background-color: var(--surface-elevated);
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.2);
  transition: right 0.3s ease;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  z-index: 1002;
  backdrop-filter: blur(12px);
  border-left: 1px solid var(--border-color);
}

.mobile-menu-panel.active {
  right: 0;
}

/* translucent overlay behind panel */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 1000;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
  visibility: visible;
}

/* header inside mobile menu */
.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.mobile-menu-header h5 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text-color);
}

/* stats section in mobile menu */
.mobile-stats-container {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.mobile-stats-container .stat-item {
  font-size: 0.9rem;
  color: var(--text-color);
  display: flex;
  align-items: center;
}

.mobile-stats-container .stat-item i {
  margin-right: 0.5em;
  opacity: 0.8;
}

/* menu buttons list */
.mobile-menu-items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

/* each menu item */
.mobile-menu-item {
  background-color: var(--button-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  border-radius: 12px;
  padding: 0.6rem 1rem;
  font-size: 1rem;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.mobile-menu-item:hover {
  background-color: var(--button-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.mobile-menu-item:active {
  background-color: var(--button-active);
}

/* close button override */
#close-mobile-menu.tool-button {
  padding: 0.25rem 0.5rem;
  font-size: 1rem;
}

/* ensure dropzone doesn’t cover menu */
.mobile-menu-panel .dropzone {
  margin-bottom: 0;
}

/* hide desktop-only stats and toolbar on mobile */
@media (max-width: 767px) {
  .stats-container.d-none.d-md-flex,
  .toolbar.d-none.d-md-flex {
    display: none !important;
  }
}

.github-link {
  color: var(--text-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, color 0.2s ease;
  margin-right: 2rem;
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.github-link:hover {
  color: var(--accent-color);
  transform: translateY(-1px);
}

.github-link i {
  font-size: 1.3rem;
}

/* ========================================
   VIEW MODE CONTROLS - Story 1.1
   ======================================== */

/* Header layout for three sections */
.header-container {
  position: relative;
}

.app-header h1 {
  font-weight: 600;
  letter-spacing: 0.3px;
}

.header-left {
  flex: 1;
  justify-content: flex-start;
}

.header-right {
  flex: 1;
  justify-content: flex-end;
}

/* View Mode Button Group */
.view-mode-group {
  display: flex;
  gap: 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 4px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.view-mode-btn {
  background-color: transparent;
  border: 1px solid transparent;
  color: var(--text-color);
  padding: 6px 14px;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
  border-radius: 999px;
}

.view-mode-btn:first-child {
  border-radius: 999px;
}

.view-mode-btn:last-child {
  border-radius: 999px;
}

.view-mode-btn:not(:last-child) {
  border-right: none;
}

.view-mode-btn:hover {
  background-color: var(--button-hover);
}

.view-mode-btn.active {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.18), rgba(244, 166, 42, 0.12));
  border-color: var(--accent-color);
  color: var(--accent-color);
  border-width: 1px;
  padding: 6px 14px;
}

.view-mode-btn.active:not(:last-child) {
  border-right: 1px solid var(--accent-color);
}

.view-mode-btn i {
  font-size: 16px;
}

/* Pane View States */
.content-container.view-editor-only .preview-pane {
  display: none;
}

.content-container.view-editor-only .editor-pane {
  flex: 1;
  border-right: none;
}

.content-container.view-preview-only .editor-pane {
  display: none;
}

.content-container.view-preview-only .preview-pane {
  flex: 1;
}

.content-container.view-split .editor-pane,
.content-container.view-split .preview-pane {
  flex: 1;
}

/* Responsive adjustments for view mode buttons */
@media (max-width: 1079px) {
  .view-mode-group {
    position: static;
    transform: none;
  }
}

@media (max-width: 767px) {
  .view-mode-group {
    display: none;
  }
}

/* ========================================
   RESIZE DIVIDER - Story 1.3
   ======================================== */

.resize-divider {
  width: 10px;
  background-color: transparent;
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  transition: background-color 0.2s ease;
}

.resize-divider:hover {
  background-color: var(--button-hover);
}

.resize-divider.dragging {
  background-color: var(--accent-color);
}

.resize-divider-handle {
  width: 3px;
  height: 44px;
  background: linear-gradient(180deg, var(--border-color), var(--accent-color));
  border-radius: 999px;
  transition: background-color 0.2s ease, width 0.2s ease;
}

.resize-divider:hover .resize-divider-handle,
.resize-divider.dragging .resize-divider-handle {
  background-color: var(--accent-color);
  width: 3px;
}

/* Hide divider in single-pane modes */
.content-container.view-editor-only .resize-divider,
.content-container.view-preview-only .resize-divider {
  display: none;
}

/* Hide divider on tablet and mobile (no drag resize) */
@media (max-width: 1079px) {
  .resize-divider {
    display: none;
  }
}

/* Prevent text selection during drag */
.resizing {
  user-select: none;
  cursor: col-resize !important;
}

.resizing * {
  cursor: col-resize !important;
}

/* ========================================
   MOBILE VIEW MODE CONTROLS - Story 1.4
   ======================================== */

.mobile-view-mode-group {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  background: var(--surface-elevated);
  border-radius: 12px;
  padding: 6px;
  box-shadow: var(--shadow-sm);
}

.mobile-view-mode-btn {
  flex: 1;
  background-color: transparent;
  border: 1px solid transparent;
  color: var(--text-color);
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.2s ease;
  border-radius: 10px;
}

.mobile-view-mode-btn:first-child {
  border-radius: 6px 0 0 6px;
}

.mobile-view-mode-btn:last-child {
  border-radius: 0 6px 6px 0;
}

.mobile-view-mode-btn:not(:last-child) {
  border-right: none;
}

.mobile-view-mode-btn:hover,
.mobile-view-mode-btn:active {
  background-color: var(--button-hover);
}

.mobile-view-mode-btn.active {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.18), rgba(244, 166, 42, 0.12));
  border-color: var(--accent-color);
  color: var(--accent-color);
  border-width: 1px;
  padding: 8px 12px;
}

.mobile-view-mode-btn.active:not(:last-child) {
  border-right: 1px solid var(--accent-color);
}

.mobile-view-mode-btn i {
  font-size: 18px;
}

.mobile-view-mode-btn span {
  font-size: 12px;
}

/* ========================================
   RESPONSIVE VIEW MODE FIXES - Story 1.5
   ======================================== */

/* On tablet/mobile, ensure single-pane modes take full height */
@media (max-width: 1079px) {
  .content-container.view-editor-only .editor-pane,
  .content-container.view-preview-only .preview-pane {
    height: 100%;
  }

  .content-container.view-split .editor-pane,
  .content-container.view-split .preview-pane {
    height: 50%;
  }
}

.pdf-export table tr {
  background-color: transparent !important;
}

.pdf-export table th,
.pdf-export table td {
  background-color: var(--table-bg, #ffffff);
  position: relative;
}

.pdf-export table tr:nth-child(2n) th,
.pdf-export table tr:nth-child(2n) td {
  background-color: var(--bg-color, #f6f8fa);
}

/* Ensure rowspan cells render correctly */
.pdf-export table th[rowspan],
.pdf-export table td[rowspan] {
  vertical-align: middle;
  background-color: var(--table-bg, #ffffff) !important;
}

/* Ensure colspan cells render correctly */
.pdf-export table th[colspan],
.pdf-export table td[colspan] {
  text-align: center;
}

/* Dark mode PDF export table fix */
[data-theme="dark"] .pdf-export table th,
[data-theme="dark"] .pdf-export table td {
  background-color: var(--table-bg, #161b22);
}

[data-theme="dark"] .pdf-export table tr:nth-child(2n) th,
[data-theme="dark"] .pdf-export table tr:nth-child(2n) td {
  background-color: #1c2128;
}

[data-theme="dark"] .pdf-export table th[rowspan],
[data-theme="dark"] .pdf-export table td[rowspan] {
  background-color: var(--table-bg, #161b22) !important;
}