/* Variables CSS para tema claro/oscuro */
:root {
  /* Tema claro */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: #dbeafe;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Tema oscuro */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --border-hover: #475569;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --accent-primary: #60a5fa;
  --accent-hover: #3b82f6;
  --accent-light: #1e3a8a;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
}

/* Reset y estilos base */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  transition: var(--transition);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Contenedor principal */
.container-fluid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1rem;
  width: 100%;
}

/* Viewport meta tag para móviles */
@media screen and (max-width: 768px) {
  .container-fluid {
    padding: 1rem 0.75rem;
  }
}

/* Header principal */
.main-header {
  text-align: center;
  margin-bottom: 3rem;
  padding: 0 1rem;
}

.main-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  word-wrap: break-word;
  hyphens: auto;
}

.main-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin: 0 auto;
  max-width: 600px;
  line-height: 1.5;
}

/* Responsive para header */
@media screen and (max-width: 768px) {
  .main-header {
    margin-bottom: 2rem;
    padding: 0 0.5rem;
  }
  
  .main-header h1 {
    font-size: 2rem;
    line-height: 1.2;
  }
  
  .main-header p {
    font-size: 1rem;
    line-height: 1.4;
  }
}

@media screen and (max-width: 480px) {
  .main-header h1 {
    font-size: 1.75rem;
  }
  
  .main-header p {
    font-size: 0.9rem;
  }
}

/* Selector de tema */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
}

.theme-toggle-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 44px;
  min-height: 44px;
  touch-action: manipulation;
}

.theme-toggle-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.theme-toggle-btn:active {
  transform: translateY(0);
}

/* Responsive para selector de tema */
@media screen and (max-width: 768px) {
  .theme-toggle {
    position: static;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    order: -1;
  }
  
  .theme-toggle-btn {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    min-width: auto;
    min-height: auto;
  }
}

@media screen and (max-width: 480px) {
  .theme-toggle-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .theme-toggle-btn span {
    display: none;
  }
}

/* Layout del editor */
.editor-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
  min-height: 600px;
}

/* Responsive para layout del editor */
@media screen and (max-width: 1024px) {
  .editor-layout {
    gap: 1.5rem;
    min-height: 500px;
  }
}

@media screen and (max-width: 768px) {
  .editor-layout {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
    min-height: auto;
  }
}

@media screen and (max-width: 480px) {
  .editor-layout {
    gap: 0.75rem;
  }
}

/* Tarjetas */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Responsive para tarjetas */
@media screen and (max-width: 768px) {
  .card {
    min-height: 400px;
  }
  
  .card:hover {
    transform: none;
  }
}

@media screen and (max-width: 480px) {
  .card {
    min-height: 350px;
    border-radius: var(--radius-md);
  }
}

.card-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  flex-shrink: 0;
}

.card-header h5 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

/* Campo de título del documento */
.document-title-section {
  width: 100%;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.document-title-section .input-group {
  max-width: 100%;
}

.document-title-section .input-group-text {
  background: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
}

.document-title-section .form-control {
  background: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-left: none;
}

.document-title-section .form-control:focus {
  background: var(--bg-primary);
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
  color: var(--text-primary);
}

.document-title-section .form-control::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.card-body {
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Responsive para card header */
@media screen and (max-width: 768px) {
  .card-header {
    padding: 0.75rem 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  
  .card-header h5 {
    font-size: 1rem;
    justify-content: center;
  }
}

@media screen and (max-width: 480px) {
  .card-header {
    padding: 0.5rem 0.75rem;
  }
  
  .card-header h5 {
    font-size: 0.9rem;
  }
}

/* Controles del editor */
.editor-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  width: 100%;
}

.margin-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.margin-selector label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  white-space: nowrap;
}

.margin-selector select {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.375rem 0.75rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  min-width: 140px;
  width: 100%;
  max-width: 200px;
}

.margin-selector select:hover {
  border-color: var(--border-hover);
}

.margin-selector select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Responsive para controles del editor */
@media screen and (max-width: 768px) {
  .editor-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  
  .margin-selector {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  
  .margin-selector select {
    min-width: auto;
    max-width: none;
  }
}

@media screen and (max-width: 480px) {
  .editor-controls {
    gap: 0.5rem;
  }
  
  .margin-selector label {
    font-size: 0.8rem;
  }
  
  .margin-selector select {
    font-size: 0.8rem;
    padding: 0.5rem;
  }
}

/* Botones */
.btn-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  width: 100%;
}

.btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline-secondary:hover {
  background: var(--text-muted);
  color: var(--bg-primary);
  border-color: var(--text-muted);
}

.btn-outline-primary:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
}

.btn-outline-success:hover {
  background: var(--success);
  color: var(--bg-primary);
  border-color: var(--success);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Responsive para botones */
@media screen and (max-width: 768px) {
  .btn-group {
    justify-content: center;
    gap: 0.375rem;
  }
  
  .btn {
    flex: 1;
    min-width: 0;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .btn i {
    font-size: 0.8rem;
  }
}

@media screen and (max-width: 480px) {
  .btn-group {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .btn {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.8rem;
    min-height: 48px;
  }
  
  .btn span {
    display: none;
  }
  
  .btn i {
    font-size: 1rem;
  }
}

/* Editor de Markdown */
.markdown-editor {
  height: 100%;
  border: none;
  border-radius: 0;
  overflow: hidden;
  background: var(--bg-primary);
  flex: 1;
  min-height: 0;
}

.markdown-editor .cm-editor {
  height: 100%;
  font-size: 14px;
  line-height: 1.6;
  background: transparent;
}

.markdown-editor .cm-focused {
  outline: none;
}

.markdown-editor .cm-scroller {
  font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  padding: 1.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.markdown-editor .cm-content {
  color: var(--text-primary);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.markdown-editor .cm-cursor {
  border-left-color: var(--accent-primary);
}

.markdown-editor .cm-selectionBackground {
  background: var(--accent-light);
}

/* Responsive para editor de markdown */
@media screen and (max-width: 768px) {
  .markdown-editor .cm-scroller {
    padding: 1rem;
    font-size: 13px;
  }
  
  .markdown-editor .cm-editor {
    font-size: 13px;
  }
}

@media screen and (max-width: 480px) {
  .markdown-editor .cm-scroller {
    padding: 0.75rem;
    font-size: 12px;
  }
  
  .markdown-editor .cm-editor {
    font-size: 12px;
    line-height: 1.5;
  }
}

/* Vista previa */
.markdown-preview {
  height: 100%;
  overflow-y: auto;
  padding: 1.5rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
  min-height: 0;
  -webkit-overflow-scrolling: touch;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Responsive para vista previa */
@media screen and (max-width: 768px) {
  .markdown-preview {
    padding: 1rem;
    font-size: 13px;
    line-height: 1.6;
  }
}

@media screen and (max-width: 480px) {
  .markdown-preview {
    padding: 0.75rem;
    font-size: 12px;
    line-height: 1.5;
  }
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3,
.markdown-preview h4,
.markdown-preview h5,
.markdown-preview h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-primary);
}

.markdown-preview h1 {
  font-size: 2rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.markdown-preview h2 {
  font-size: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.25rem;
}

.markdown-preview h3 {
  font-size: 1.25rem;
}

.markdown-preview p {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.markdown-preview ul,
.markdown-preview ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
}

.markdown-preview li {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.markdown-preview blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  color: var(--text-secondary);
  border-left: 4px solid var(--accent-primary);
  background: var(--bg-tertiary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.markdown-preview code {
  padding: 0.2rem 0.4rem;
  font-size: 0.875em;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.markdown-preview pre {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  overflow-x: auto;
  border: 1px solid var(--border-color);
}

.markdown-preview pre code {
  padding: 0;
  background: transparent;
  border: none;
  color: var(--text-primary);
}

.markdown-preview table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  border-spacing: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.markdown-preview th,
.markdown-preview td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.markdown-preview th {
  font-weight: 600;
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.markdown-preview td {
  color: var(--text-primary);
}

.markdown-preview tr:last-child td {
  border-bottom: none;
}

.markdown-preview a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.markdown-preview a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.markdown-preview img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.markdown-preview hr {
  border: none;
  height: 1px;
  background: var(--border-color);
  margin: 2rem 0;
}

/* Sección de ayuda */
.help-section {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.help-section .card-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.help-section .card-body {
  padding: 2rem;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.help-section h6 {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.help-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.help-section li {
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.help-section code {
  background: var(--bg-tertiary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.875em;
  color: var(--accent-primary);
  border: 1px solid var(--border-color);
}

/* Scrollbar personalizado */
.markdown-preview::-webkit-scrollbar {
  width: 6px;
}

.markdown-preview::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 3px;
}

.markdown-preview::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
  transition: var(--transition);
}

.markdown-preview::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* Animaciones */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeIn 0.3s ease-out;
}

/* Breakpoints adicionales para tablets */
@media screen and (max-width: 1024px) and (min-width: 769px) {
  .container-fluid {
    padding: 1.5rem 1rem;
  }
  
  .editor-layout {
    gap: 1.5rem;
  }
  
  .card-header {
    padding: 0.875rem 1.25rem;
  }
  
  .btn {
    padding: 0.5rem 0.875rem;
    font-size: 0.85rem;
  }
}

/* Responsive para tablets en modo landscape */
@media screen and (max-width: 1024px) and (orientation: landscape) {
  .main-header {
    margin-bottom: 2rem;
  }
  
  .main-header h1 {
    font-size: 2rem;
  }
  
  .editor-layout {
    min-height: 500px;
  }
}

/* Responsive para móviles */
@media screen and (max-width: 768px) {
  .container-fluid {
    padding: 1rem 0.75rem;
  }
  
  .main-header h1 {
    font-size: 2rem;
  }
  
  .main-header p {
    font-size: 1rem;
  }
  
  .theme-toggle {
    position: static;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    order: -1;
  }
  
  .editor-layout {
    gap: 1rem;
  }
  
  .card-header {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  
  .editor-controls {
    justify-content: space-between;
  }
  
  .btn-group {
    width: 100%;
    justify-content: center;
  }
  
  .help-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Responsive para móviles pequeños */
@media screen and (max-width: 480px) {
  .container-fluid {
    padding: 0.75rem 0.5rem;
  }
  
  .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .margin-selector {
    flex-direction: column;
    align-items: stretch;
  }
  
  .margin-selector select {
    min-width: auto;
  }
}

/* Responsive para móviles muy pequeños */
@media screen and (max-width: 360px) {
  .container-fluid {
    padding: 0.5rem 0.25rem;
  }
  
  .main-header h1 {
    font-size: 1.5rem;
  }
  
  .main-header p {
    font-size: 0.85rem;
  }
  
  .card {
    min-height: 300px;
  }
  
  .btn {
    padding: 0.75rem 0.5rem;
    font-size: 0.75rem;
  }
}

/* Mejoras adicionales para dispositivos táctiles */
@media (hover: none) and (pointer: coarse) {
  .btn:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
  
  .card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
  
  .toolbar-btn:hover {
    transform: none;
    background: var(--bg-primary);
  }
  
  .toolbar-btn:active {
    background: var(--accent-light);
    color: var(--accent-primary);
  }
}

/* Mejoras para pantallas de alta densidad */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .markdown-editor .cm-scroller {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  .markdown-preview {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Mejoras para modo landscape en móviles */
@media screen and (max-width: 768px) and (orientation: landscape) {
  .main-header {
    margin-bottom: 1.5rem;
  }
  
  .main-header h1 {
    font-size: 1.75rem;
  }
  
  .main-header p {
    font-size: 0.9rem;
  }
  
  .editor-layout {
    min-height: 400px;
  }
  
  .card {
    min-height: 350px;
  }
}

/* Estilos para Toast */
.toast-container {
  z-index: 1050;
}

.toast {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-size: 0.875rem;
  max-width: 350px;
  min-width: 300px;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-bottom: 0.75rem;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.toast-title {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.toast-icon {
  font-size: 1rem;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  padding: 0;
  transition: var(--transition);
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.toast-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.toast-body {
  padding: 1rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Variantes de toast */
.toast-success {
  border-left: 4px solid var(--success);
}

.toast-success .toast-icon {
  color: var(--success);
}

.toast-error {
  border-left: 4px solid var(--danger);
}

.toast-error .toast-icon {
  color: var(--danger);
}

.toast-info {
  border-left: 4px solid var(--accent-primary);
}

.toast-info .toast-icon {
  color: var(--accent-primary);
}

.toast-warning {
  border-left: 4px solid var(--warning);
}

.toast-warning .toast-icon {
  color: var(--warning);
}

/* Animación de entrada */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.show {
  animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Responsive para toast */
@media (max-width: 480px) {
  .toast {
    min-width: 280px;
    max-width: calc(100vw - 2rem);
  }
  
  .toast-container {
    padding: 1rem;
  }
}

/* Barra de herramientas del editor */
.editor-toolbar {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  min-height: 3rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex-shrink: 0;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.toolbar-separator {
  width: 1px;
  height: 1.5rem;
  background: var(--border-color);
  margin: 0 0.5rem;
}

.toolbar-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  font-size: 0.875rem;
  position: relative;
  outline: none;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.toolbar-btn:hover {
  background: var(--bg-primary);
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.toolbar-btn:active {
  transform: translateY(0);
  background: var(--accent-light);
  color: var(--accent-primary);
}

.toolbar-btn:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--accent-light);
}

.toolbar-btn.active {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
}

.toolbar-btn i {
  font-size: 0.875rem;
}

.toolbar-btn .fa-heading {
  font-size: 0.75rem;
  margin-right: 0.25rem;
}

/* Responsive para barra de herramientas */
@media screen and (max-width: 768px) {
  .editor-toolbar {
    padding: 0.5rem;
    gap: 0.25rem;
    min-height: 2.5rem;
    flex-wrap: nowrap;
    overflow-x: auto;
  }
  
  .toolbar-btn {
    min-width: 2rem;
    height: 2rem;
    padding: 0.375rem;
    font-size: 0.8rem;
    flex-shrink: 0;
  }
  
  .toolbar-separator {
    height: 1.25rem;
    margin: 0 0.25rem;
    flex-shrink: 0;
  }
  
  .toolbar-group {
    gap: 0.125rem;
    flex-shrink: 0;
  }
}

@media screen and (max-width: 480px) {
  .editor-toolbar {
    padding: 0.375rem;
    gap: 0.125rem;
    min-height: 2.25rem;
  }
  
  .toolbar-btn {
    min-width: 1.75rem;
    height: 1.75rem;
    padding: 0.25rem;
    font-size: 0.75rem;
  }
  
  .toolbar-btn .fa-heading {
    font-size: 0.7rem;
  }
  
  .toolbar-separator {
    height: 1rem;
    margin: 0 0.125rem;
  }
}

/* Estilos para gestión de documentos */
.documents-list {
  max-height: 400px;
  overflow-y: auto;
  padding: 0.5rem;
}

.document-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
  transition: var(--transition);
  cursor: pointer;
  user-select: none;
  position: relative;
}

.document-item:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.document-item:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Indicador visual de que es clickeable */
.document-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-md);
  background: transparent;
  transition: var(--transition);
  pointer-events: none;
}

.document-item:hover::after {
  background: rgba(59, 130, 246, 0.05);
}

.document-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
  gap: 1rem;
}

.document-title {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  margin: 0;
  flex: 1;
  line-height: 1.4;
}

.document-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.document-actions .btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  min-width: auto;
}

.document-meta {
  margin-bottom: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.document-meta small {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.document-preview {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
  max-height: 3rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* Estilos para modales de documentos */
.modal-content {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.modal-title {
  color: var(--text-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-body {
  color: var(--text-primary);
  background: var(--bg-primary);
}

.modal-footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

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

/* Formularios en modales */
.form-label {
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-control {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-control:read-only {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: not-allowed;
}

/* Input group para búsqueda */
.input-group-text {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-right: none;
}

.input-group .form-control {
  border-left: none;
}

.input-group .form-control:focus {
  border-left: 1px solid var(--accent-primary);
}

/* Estados de botones específicos */
.btn-success {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.btn-success:hover {
  background: #059669;
  border-color: #059669;
  color: white;
}

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

.btn-info:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: white;
}

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

.btn-warning:hover {
  background: #d97706;
  border-color: #d97706;
  color: white;
}

/* Responsive para modales */
@media screen and (max-width: 768px) {
  .modal-dialog {
    margin: 1rem;
    max-width: calc(100vw - 2rem);
  }
  
  .modal-dialog.modal-lg {
    max-width: calc(100vw - 2rem);
  }
  
  .modal-content {
    border-radius: var(--radius-md);
  }
  
  .modal-header {
    padding: 0.75rem 1rem;
  }
  
  .modal-body {
    padding: 1rem;
  }
  
  .modal-footer {
    padding: 0.75rem 1rem;
  }
}

@media screen and (max-width: 480px) {
  .modal-dialog {
    margin: 0.5rem;
    max-width: calc(100vw - 1rem);
  }
  
  .modal-header {
    padding: 0.5rem 0.75rem;
  }
  
  .modal-body {
    padding: 0.75rem;
  }
  
  .modal-footer {
    padding: 0.5rem 0.75rem;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .modal-footer .btn {
    width: 100%;
  }
}

/* Responsive para documentos */
@media screen and (max-width: 768px) {
  .document-header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  
  .document-actions {
    justify-content: center;
  }
  
  .document-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .documents-list {
    max-height: 300px;
  }
}

@media screen and (max-width: 480px) {
  .document-item {
    padding: 0.75rem;
  }
  
  .document-title {
    font-size: 0.9rem;
  }
  
  .document-actions .btn {
    padding: 0.25rem 0.375rem;
    font-size: 0.7rem;
  }
}