/*
 * Hebrew Markdown Editor - Improved CSS
 * Modern, accessible, and optimized CSS for the RTL Markdown editor
 * Author: Claude (Improving Dor Pascal's original)
 */

/* ===== CSS RESET & NORMALIZATION ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  height: 100vh;
  overflow: hidden;
  text-rendering: optimizeSpeed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== CUSTOM PROPERTIES (VARIABLES) ===== */
:root {
  /* Color System - Base */
  --color-white: #ffffff;
  --color-black: #000000;

  /* Color System - Grays */
  --color-gray-50: #f7f9fc;
  --color-gray-100: #eef2f7;
  --color-gray-200: #e5e5ea;
  --color-gray-300: #d2d2d7;
  --color-gray-400: #a1a1a6;
  --color-gray-500: #6e6e73;
  --color-gray-600: #48484d;
  --color-gray-700: #2a2a2e;
  --color-gray-800: #1e1e1e;
  --color-gray-900: #111111;

  /* Color System - Brand Colors */
  --color-primary-50: #e6f0ff;
  --color-primary-100: #cce1ff;
  --color-primary-300: #99c1ff;
  --color-primary-500: #0070f3;
  --color-primary-600: #0055d4;
  --color-primary-700: #003ca6;
  --color-primary-900: #001a45;

  /* Color System - Accent Colors */
  --color-red: #ff3b30;
  --color-orange: #ff9500;
  --color-yellow: #ffcc00;
  --color-green: #34c759;
  --color-blue: #5ac8fa;
  --color-indigo: #5856d6;
  --color-purple: #af52de;

  /* Semantic Colors - Light Mode */
  --background: var(--color-white);
  --surface-1: var(--color-gray-50);
  --surface-2: var(--color-gray-100);
  --card: var(--color-white);
  --primary: var(--color-primary-500);
  --primary-light: var(--color-primary-50);
  --primary-dark: var(--color-primary-600);
  --secondary: var(--color-indigo);
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-500);
  --text-tertiary: var(--color-gray-400);
  --border: var(--color-gray-300);
  --divider: var(--color-gray-200);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Arial Hebrew', Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --font-display: 'Space Grotesk', sans-serif;

  /* Font Sizes - Using clamp for responsive text */
  --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --fs-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --fs-md: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --fs-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
  --fs-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --fs-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --fs-3xl: clamp(1.875rem, 1.7rem + 0.875vw, 2.25rem);

  /* Spacing - Using rem for consistency */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0px 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0px 4px 8px rgba(0, 0, 0, 0.03), 0px 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0px 12px 24px rgba(0, 0, 0, 0.05), 0px 4px 6px rgba(0, 0, 0, 0.03);
  --shadow-focus: 0 0 0 3px rgba(0, 102, 255, 0.3);
  --shadow-card: 0px 10px 20px rgba(0, 0, 0, 0.04), 0px 2px 6px rgba(0, 0, 0, 0.02);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --header-height: 3rem;
  --toolbar-height: 3rem;
  --status-bar-height: 2rem;
  --editor-width: 50%;
  --preview-width: 50%;
  --max-content-width: 1200px;

  /* Z-index layers */
  --z-header: 50;
  --z-toolbar: 40;
  --z-dropdown: 100;
  --z-modal: 200;
  --z-tooltip: 300;
  --z-loading: 1000;
}

/* ===== DARK MODE VARIABLES ===== */
[data-theme="dark"] {
  /* Semantic Colors - Dark Mode */
  --background: var(--color-gray-900);
  --surface-1: var(--color-gray-800);
  --surface-2: var(--color-gray-700);
  --card: var(--color-gray-700);
  --primary: #4b8185;
  --primary-light: #153b6b;
  --primary-dark: #409cff;
  --secondary: #6e6aef;
  --text-primary: var(--color-gray-50);
  --text-secondary: var(--color-gray-400);
  --text-tertiary: var(--color-gray-500);
  --border: var(--color-gray-600);
  --divider: var(--color-gray-600);

  /* Updated accent colors for dark mode */
  --color-red: #ff453a;
  --color-orange: #ff9f0a;
  --color-yellow: #ffd60a;
  --color-green: #32d74b;
  --color-blue: #64d2ff;
  --color-indigo: #5e5ce6;
  --color-purple: #bf5af2;

  /* System appearance */
  color-scheme: dark;
}

/* ===== BASE STYLES ===== */
body {
  font-family: var(--font-family);
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.5;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal);
  margin: 0;
}

h1, h2, h3, h4, h5, h6, #credit {
  font-family: var(--font-display);
  line-height: 1.3;
  font-weight: 600;
  margin-top: 1.5em;
  margin-bottom: 0.75em;
  color: var(--text-primary);
}

h1 {
  font-size: var(--fs-3xl);
  border-bottom: 1px solid var(--divider);
  padding-bottom: 0.3em;
  margin-top: 0;
}

h2 {
  font-size: var(--fs-2xl);
  border-bottom: 1px solid var(--divider);
  padding-bottom: 0.3em;
}

h3 {
  font-size: var(--fs-xl);
}

h4 {
  font-size: var(--fs-lg);
}

p {
  margin-bottom: 1.25em;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-normal);
}

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

button {
  font-family: inherit;
}

/* ===== APP LAYOUT ===== */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  padding-block: var(--space-sm);
}

/* App Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: var(--z-header);
  height: var(--header-height);
}

.app-title {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  transition: color var(--transition-normal);
}

.app-title h1 {
  margin: 0;
  font-size: var(--fs-md);
  color: var(--text-primary);
  border-bottom: none;
}

.app-title i {
  color: var(--primary);
  font-size: 1.2em;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  background-color: var(--surface-1);
  border-bottom: 1px solid var(--divider);
  gap: var(--space-xs);
  transition:
    background-color var(--transition-normal),
    max-height var(--transition-normal),
    padding var(--transition-normal),
    border-bottom var(--transition-normal);
  position: sticky;
  top: 0;
  z-index: var(--z-toolbar);
  overflow-x: auto;
  scrollbar-width: none;
  justify-content: flex-end;
  max-height: var(--toolbar-height);
}

.toolbar::-webkit-scrollbar {
  display: none;
}

.toolbar.hidden {
  max-height: 0;
  padding: 0;
  border-bottom: none;
  overflow: hidden;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding-inline: var(--space-xs);
  background-color: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-normal);
}

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

.tool-divider {
  width: 1px;
  height: 24px;
  background-color: var(--divider);
  margin-inline: var(--space-xs);
  transition: background-color var(--transition-normal);
}

/* ===== CONTENT LAYOUT ===== */
.content-container {
  display: flex;
  flex: 1;
  overflow: hidden;
  background-color: var(--background);
  transition: all var(--transition-normal);
}

.editor-panel,
.preview-panel {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1;
  transition: all var(--transition-normal);
}

.editor-panel {
  max-width: var(--editor-width);
}

.preview-panel {
  max-width: var(--preview-width);
}

[data-view-mode="editor-only"] .editor-panel {
  max-width: 100%;
}

[data-view-mode="editor-only"] .preview-panel {
  max-width: 0;
  display: none;
}

[data-view-mode="preview-only"] .editor-panel {
  max-width: 0;
  display: none;
}

[data-view-mode="preview-only"] .preview-panel {
  max-width: 100%;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-lg);
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background-color: var(--surface-1);
  border-bottom: 1px solid var(--divider);
  transition: background-color var(--transition-normal);
}

.panel-header i {
  margin-inline-start: 6px;
  color: var(--primary);
}

.panel-content {
  flex: 1;
  overflow: auto;
  position: relative;
}

.divider {
  width: 6px;
  background-color: var(--divider);
  transition: background-color var(--transition-normal);
  flex-shrink: 0;
  cursor: col-resize;
  position: relative;
  z-index: 15;
}

.divider:hover,
.divider.dragging {
  background-color: var(--primary);
}

.divider::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 40px;
  width: 4px;
  background-color: var(--primary);
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.divider:hover::after {
  opacity: 0.7;
}

.app-container.resizing {
  cursor: col-resize;
  user-select: none;
}

/* ===== STATUS BAR ===== */
.status-bar {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-lg);
  background-color: var(--surface-1);
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  border-top: 1px solid var(--divider);
  transition: background-color var(--transition-normal);
  white-space: nowrap;
  position: static;
  bottom: 0;
  margin-bottom: var(--space-sm);
  height: var(--status-bar-height);
}

.status-bar i {
  margin-inline-end: 5px;
  color: var(--primary);
}

#credit {
  color: var(--text-secondary);
  text-align: center;
}

#credit a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-normal);
}

#credit a:hover {
  color: var(--text-primary);
}

/* ===== UI COMPONENTS ===== */
/* Buttons */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: var(--primary);
  opacity: 0;
  border-radius: 50%;
  transform: scale(1) translate(-50%, -50%);
  transform-origin: 50% 50%;
}

.btn:hover {
  background-color: var(--surface-1);
  color: var(--text-primary);
}

.btn:active::after {
  animation: ripple 0.6s ease-out;
}

[data-theme="dark"] .btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.btn:active {
  background-color: var(--surface-2);
}

[data-theme="dark"] .btn:active {
  background-color: rgba(255, 255, 255, 0.15);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn.primary {
  background-color: var(--primary);
  color: white;
}

.btn.primary:hover {
  background-color: var(--primary-dark);
  opacity: 0.95;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn.primary:active {
  transform: translateY(0);
}

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

/* Tooltips */
.btn .tooltip {
  position: absolute;
  top: calc(100% + 5px);
  right: 50%;
  transform: translateX(50%);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  background-color: var(--card);
  color: var(--text-primary);
  font-size: var(--fs-xs);
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast);
  z-index: var(--z-tooltip);
  pointer-events: none;
  border: 1px solid var(--border);
}

.btn:hover .tooltip {
  opacity: 1;
  visibility: visible;
}

/* Control Groups */
.control-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background-color: var(--surface-1);
  border-radius: var(--radius-lg);
  padding: var(--space-xs);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-normal);
}

.control-group:hover {
  box-shadow: var(--shadow-md);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 50px;
  height: 28px;
  background-color: var(--surface-2);
  border-radius: 14px;
  transition: background-color var(--transition-normal);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 0 2px;
  overflow: hidden;
}

.toggle-switch[data-active="true"] {
  background-color: var(--primary);
}

.toggle-handle {
  position: absolute;
  right: 2px;
  width: 24px;
  height: 24px;
  background-color: white;
  border-radius: 50%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition-normal);
  z-index: 1;
}

.toggle-switch[data-active="true"] .toggle-handle {
  transform: translateX(-22px);
}

/* Toggle Switch Icons */
.toggle-switch::before,
.toggle-switch::after {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  transition: opacity var(--transition-normal);
}

.toggle-switch::before {
  content: "\f185"; /* sun */
  right: 8px;
  color: #ffcc00;
  opacity: 1;
  z-index: 2;
}

.toggle-switch::after {
  content: "\f186"; /* moon */
  left: 8px;
  color: #0070f3;
  opacity: 0;
  z-index: 2;
}

.toggle-switch[data-active="true"]::before {
  opacity: 0;
}

.toggle-switch[data-active="true"]::after {
  opacity: 1;
}

.toggle-switch:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.switch-label {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

/* View Mode Tabs */
.view-modes {
  display: flex;
  align-items: center;
  background-color: var(--surface-1);
  border-radius: var(--radius-lg);
  padding: var(--space-xs);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.view-mode-btn {
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: 6px var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 5px;
}

.view-mode-btn:hover {
  color: var(--text-primary);
  background-color: var(--surface-2);
}

.view-mode-btn.active {
  color: white;
  background-color: var(--primary);
}

.view-mode-btn i {
  font-size: 0.95em;
}

.view-mode-btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* Theme Selector */
.theme-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  margin-top: var(--space-sm);
  display: none;
  z-index: var(--z-dropdown);
  min-width: 200px;
  max-width: 260px;
  overflow-y: auto;
  max-height: 400px;
  border: 1px solid var(--border);
}

.theme-selector.open .theme-dropdown {
  display: block;
  animation: fadeIn 0.2s ease-out;
}

.theme-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  margin-bottom: 2px;
}

.theme-option:hover {
  background-color: var(--surface-1);
}

.theme-option.active {
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 500;
}

.theme-option.active::after {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--primary);
  font-size: 0.9em;
}

.theme-color {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  margin-left: var(--space-sm);
}

/* ===== EDITOR/PREVIEW STYLES ===== */
/* CodeMirror Editor */
.editor-container {
  height: 100%;
  position: relative;
}

.CodeMirror {
  height: 100% !important;
  direction: rtl;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--card);
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal);
  z-index: 1;
  padding: 0;
  padding-right: var(--space-lg);
}

/* Special handling for code blocks and math in RTL context */
.CodeMirror .cm-comment,
.CodeMirror .cm-math-block,
.CodeMirror .cm-math-inline,
.CodeMirror span[class*="cm-math"],
.CodeMirror .cm-formatting-math {
  direction: ltr !important;
  text-align: left !important;
}

.CodeMirror-line:has(.cm-math-block),
.CodeMirror-line:has(.cm-math-inline),
.CodeMirror-line:has(.cm-comment) {
  direction: ltr !important;
}

.CodeMirror-rtl pre {
  direction: unset;
}

/* Search Dialog */
.CodeMirror-dialog {
  direction: rtl;
  background-color: var(--card) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-md);
  padding: var(--space-sm);
  z-index: 30;
  left: 50% !important;
  transform: translateX(-50%) !important;
  font-size: var(--fs-md) !important;
}

.CodeMirror-dialog input {
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  background-color: var(--surface-1) !important;
  color: var(--text-primary) !important;
  font-size: var(--fs-md) !important;
  direction: rtl;
}

.CodeMirror-dialog-top {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  margin-top: var(--space-md);
}

.CodeMirror-searching {
  background-color: var(--primary-light);
}

.CodeMirror-dialog button {
  background-color: var(--surface-1);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  margin-right: var(--space-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.CodeMirror-dialog button:hover {
  background-color: var(--primary-light);
  color: var(--primary);
}

/* Preview Content */
.preview-content {
  padding: var(--space-2xl);
  color: var(--text-primary);
  direction: rtl;
  font-family: var(--font-family);
  line-height: 1.6;
  max-width: 900px;
  margin: 0 auto;
}

.preview-content blockquote {
  border-right: 4px solid var(--primary);
  margin: 1.5em 0;
  padding: 0.8em 1.4em;
  background-color: var(--surface-1);
  border-radius: var(--radius-md);
  font-style: italic;
}

[data-theme="dark"] .preview-content blockquote {
  background-color: var(--surface-2);
}

/* Ensure code blocks are always LTR */
.preview-content pre {
  background-color: var(--surface-1);
  padding: 1.2em;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.5em 0;
  direction: ltr !important;
  text-align: left !important;
  font-family: var(--font-mono);
  font-size: 14px;
  tab-size: 2;
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .preview-content pre {
  background-color: var(--surface-2);
}

.preview-content code {
  font-family: var(--font-mono);
  background-color: var(--surface-1);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
  direction: ltr;
  display: inline-block;
}

[data-theme="dark"] .preview-content code {
  background-color: var(--surface-2);
}

.preview-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  display: block;
}

/* Table styling */
.preview-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.preview-content table th,
.preview-content table td {
  padding: 0.8em 1.2em;
  border: 1px solid var(--divider);
  text-align: right;
}

.preview-content table th {
  background-color: var(--surface-1);
  font-weight: 600;
}

.preview-content table tr:nth-child(even) {
  background-color: var(--surface-1);
}

[data-theme="dark"] .preview-content table tr:nth-child(even) {
  background-color: var(--surface-2);
}

.preview-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 1.5em 0;
  box-shadow: var(--shadow-md);
}

/* Lists */
.preview-content ul,
.preview-content ol {
  margin: 1.25em 1.5em 1.25em 0;
}

.preview-content li {
  margin-bottom: 0.5em;
  position: relative;
}

.preview-content ul li::marker {
  color: var(--primary);
}

.preview-content ol li::marker {
  color: var(--primary);
  font-weight: 600;
}

/* Task lists */
.preview-content ul li input[type="checkbox"] {
  margin-left: 0.5em;
  accent-color: var(--primary);
  transform: scale(1.1);
}

.preview-content ul li input[type="checkbox"]:checked+span {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

/* Math specific styling */
.katex-display {
  margin: 1.5em 0;
  overflow-x: auto;
  overflow-y: hidden;
  direction: ltr !important;
  padding: 1em;
  background-color: var(--surface-1);
  border-radius: var(--radius-md);
}

[data-theme="dark"] .katex-display {
  background-color: var(--surface-2);
}

.katex {
  font-size: 1.1em;
  direction: ltr !important;
}

.katex-error {
  color: var(--color-red);
  border: 1px solid var(--color-red);
  padding: 0.8em;
  border-radius: var(--radius-sm);
  margin: 1em 0;
}

/* Loading indicator */
.loading {
  position: fixed;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-loading);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.loading-spinner::before {
  content: "\f021";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 32px;
  color: var(--primary);
  animation: spin 1s linear infinite;
}

.loading-spinner::after {
  content: "טוען...";
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

[data-theme="dark"] .loading {
  background-color: rgba(0, 0, 0, 0.8);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from {
    transform: translateY(-10px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes ripple {
  0% { opacity: 0.7; }
  100% {
    transform: scale(20) translate(-50%, -50%);
    opacity: 0;
  }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.fade-in { animation: fadeIn 0.3s ease-in-out; }
.slide-in { animation: slideIn 0.3s ease-in-out; }

/* App Logo */
#logo {
  width: 40px;
  height: 40px;
  margin-inline-end: 8px;
  transition: transform var(--transition-fast);
  fill: url(#gold-gradient);
  transform-origin: center;
  cursor: pointer;
  z-index: 10;
  position: relative;
  filter: drop-shadow(2px 4px 6px black);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border-radius: 23.7%;
}

#logo:hover {
  transform: rotate(360deg);
  transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
  :root {
    --space-2xl: 2rem;
  }

  .preview-content {
    padding: var(--space-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --editor-width: 100%;
    --preview-width: 100%;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
  }

  .content-container {
    flex-direction: column;
  }

  .divider {
    height: 1px;
    width: 100%;
    display: none;
  }

  .toolbar {
    overflow-x: auto;
    justify-content: flex-start;
    padding: var(--space-xs) var(--space-sm);
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
  }

  .tool-group {
    flex-shrink: 0;
  }

  .header-controls {
    gap: var(--space-sm);
  }

  .control-group {
    flex-shrink: 0;
  }

  .view-mode-btn,
  .switch-label {
    padding: 6px var(--space-sm);
    font-size: 0.75rem;
  }

  .preview-content {
    padding: var(--space-lg);
  }

  .editor-panel,
  .preview-panel {
    max-width: 100% !important;
  }

  .app-title {
    margin-bottom: var(--space-xs);
  }

  .app-title h1 {
    font-size: 0.8rem;
  }

  .btn {
    width: 32px;
    height: 32px;
    font-size: 14px;
    padding: 0;
    margin: 0;
    border-radius: var(--radius-md);
    background-color: var(--surface-1);
    transition:
      background-color var(--transition-fast),
      color var(--transition-fast);
    box-shadow: var(--shadow-sm);
  }
}

@media (max-width: 480px) {
  .app-title {
    display: none;
  }

  .switch-label {
    display: none;
  }

  .app-header {
    padding: var(--space-xs);
    align-items: center;
  }

  .control-group {
    padding: 0;
    flex-direction: row;
    gap: var(--space-xs);
  }

  .header-controls {
    align-items: center;
    gap: var(--space-xs);
  }

  .view-modes {
    margin-bottom: 0;
  }
}

@media (max-width: 360px) {
  .btn {
    width: 28px;
    height: 28px;
  }

  .view-mode-btn {
    padding: 4px var(--space-xs);
    font-size: 0.7rem;
  }

  .toggle-switch {
    width: 40px;
    height: 24px;
  }

  .toggle-handle {
    width: 20px;
    height: 20px;
  }

  .toggle-switch[data-active="true"] .toggle-handle {
    transform: translateX(-18px);
  }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  #logo:hover {
    transform: none;
  }
}

/* High contrast mode improvements */
@media (forced-colors: active) {
  .btn,
  .view-mode-btn,
  .toggle-switch,
  .theme-option {
    border: 1px solid;
  }

  .btn.primary,
  .view-mode-btn.active {
    border: 2px solid;
  }
}

/* Focus styles for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Skip to content link (hidden but accessible) */
.skip-to-content {
  position: absolute;
  left: -9999px;
  z-index: var(--z-header);
  padding: var(--space-md);
  background: var(--primary);
  color: white;
  text-decoration: none;
}

.skip-to-content:focus {
  left: 0;
  top: 0;
}