/* ==========================================================================
   Apuntes — Sistema de diseño "Papel & Tinta"
   Estética minimalista zen · wabi-sabi digital
   WCAG 2.1 AA · prefers-reduced-motion · focus visible
   ========================================================================== */

/* 1. DESIGN TOKENS · PALETA PAPEL & TINTA ================================ */
/* Modo Claro · Papel cálido */
:root {
  color-scheme: light;
  /* Tipografía */
  --font-display: 'Cormorant Garamond', 'Lora', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Sepia · Acento único cálido */
  --accent: #7a5c3e;
  --accent-soft: rgba(122, 92, 62, 0.08);
  --accent-strong: #5d4530;

  /* Colores */
  --bg: #faf6ee;
  --bg-elevated: #ffffff;
  --bg-subtle: #f1ebdd;
  --bg-canvas: #ffffff;
  --border: rgba(26, 24, 21, 0.09);
  --border-strong: rgba(26, 24, 21, 0.18);
  --text: #1a1815;
  --text-muted: #6b665d;
  --text-faint: #9a948a;

  /* Estados */
  --danger: #8b3a2f;
  --success: #4a6b3a;
}

/* Modo Oscuro · Tinta profunda */
html.dark {
  color-scheme: dark;
  --bg: #161412;
  --bg-elevated: #1f1d1a;
  --bg-subtle: #0e0d0b;
  --bg-canvas: #1a1815;
  --border: rgba(232, 226, 213, 0.08);
  --border-strong: rgba(232, 226, 213, 0.16);
  --text: #e8e2d5;
  --text-muted: #9a948a;
  --text-faint: #6b665d;
  --accent: #c9a87a;
  --accent-soft: rgba(201, 168, 122, 0.12);
  --accent-strong: #d9b88a;
}

/* 2. RESET Y BASE ======================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

html:not(.dark) body {
  background-color: var(--bg);
  color: var(--text);
}

html.dark body {
  background-color: var(--bg);
  color: var(--text);
}

::selection {
  background-color: var(--accent-soft);
  color: var(--text);
}

/* 3. TIPOGRAFÍA =========================================================== */
.font-display {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.font-mono {
  font-family: var(--font-mono);
  font-feature-settings:
    'tnum' 1,
    'cv11' 1;
}

/* 4. ACCESIBILIDAD · FOCUS VISIBLE GLOBAL ================================ */
/* Cumple WCAG 2.4.7 · visible en todos los elementos interactivos */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 5. SKIP LINK ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  padding: 8px 16px;
  background-color: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

/* 6. HEADER MINIMALISTA RESPONSIVE ======================================== */
.app-header {
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
  overflow-x: hidden;
  transition: padding 0.2s ease;
}

@media (min-width: 1024px) {
  .app-header {
    padding: 14px 32px;
    gap: 24px;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
}

.brand-tagline {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 4px;
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
}

@media (max-width: 768px) {
  .app-header {
    padding: 8px 12px;
    gap: 6px;
  }
  .brand-name {
    font-size: 18px;
  }
  .brand-tagline {
    display: none !important;
  }
  .hide-on-mobile {
    display: none !important;
  }
  .btn-label-desktop {
    display: none !important;
  }
}

@media (max-width: 520px) {
  .hide-on-compact {
    display: none !important;
  }
  .header-actions {
    gap: 2px;
  }
}

/* 7. BOTONES MINIMALISTAS ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 11px;
  border: 1px solid transparent;
  background-color: transparent;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  touch-action: manipulation;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    transform 0.1s ease;
  white-space: nowrap;
}

.btn:hover {
  background-color: var(--bg-subtle);
}

.btn:active {
  background-color: var(--accent-soft);
  transform: scale(0.97);
}

.btn-ghost {
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: var(--text);
  background-color: var(--bg-subtle);
}

.btn-ghost.active {
  color: var(--accent);
  background-color: var(--accent-soft);
  border-color: var(--accent);
  font-weight: 600;
}

.btn-icon {
  padding: 6px;
  width: 34px;
  height: 34px;
  justify-content: center;
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

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

.btn-danger {
  color: var(--danger);
}

.btn-danger:hover {
  background-color: rgba(139, 58, 47, 0.08);
}

/* 7.1. SELECTOR DE MODO DE VISTA (DESKTOP) =============================== */
.view-mode-selector {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
}

.view-mode-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 30px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.15s ease;
}

.view-mode-btn:hover {
  color: var(--text);
  background-color: var(--bg-elevated);
}

.view-mode-btn.active {
  background-color: var(--bg-elevated);
  color: var(--accent);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

html.dark .view-mode-btn.active {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* 7.2. TABS SELECTORAS PARA MÓVIL (< 1024px) ============================= */
.mobile-view-tabs {
  display: flex;
  align-items: center;
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  padding: 4px 8px;
  gap: 6px;
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  .mobile-view-tabs {
    display: none !important;
  }
}

.mobile-tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.15s ease;
}

.mobile-tab-btn .material-symbols-outlined {
  font-size: 18px;
}

.mobile-tab-btn.active {
  background-color: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border-strong);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

html.dark .mobile-tab-btn.active {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* 8. WORKSPACE LAYOUT INTELIGENTE (STACKEDIT STYLE) ======================= */
.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--border);
  min-height: 0;
  height: calc(100dvh - 106px);
  position: relative;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  box-sizing: border-box;
}

.editor-panel,
.preview-panel,
.sidebar-panel {
  background-color: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
}

/* ─── Modos de Vista en Pantallas Grandes (>= 1024px) ─── */
@media (min-width: 1024px) {
  .workspace {
    height: calc(100vh - 65px);
  }

  /* Modo Split (50/50 Editor + Preview) */
  body[data-active-view='split'] .workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1px;
  }
  body[data-active-view='split'] .editor-panel {
    display: flex !important;
  }
  body[data-active-view='split'] .preview-panel {
    display: flex !important;
  }
  body[data-active-view='split'] .sidebar-panel {
    display: none !important;
  }

  /* Modo Solo Editor (Zen) */
  body[data-active-view='editor'] .workspace {
    display: grid;
    grid-template-columns: 1fr;
  }
  body[data-active-view='editor'] .editor-panel {
    display: flex !important;
  }
  body[data-active-view='editor'] .preview-panel,
  body[data-active-view='editor'] .sidebar-panel {
    display: none !important;
  }

  /* Modo Solo Preview (Reader Mode) */
  body[data-active-view='preview'] .workspace {
    display: grid;
    grid-template-columns: 1fr;
  }
  body[data-active-view='preview'] .preview-panel {
    display: flex !important;
  }
  body[data-active-view='preview'] .editor-panel,
  body[data-active-view='preview'] .sidebar-panel {
    display: none !important;
  }

  /* Modo Métricas (Analítica) */
  body[data-active-view='metrics'] .workspace {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 1px;
  }
  body[data-active-view='metrics'] .editor-panel {
    display: flex !important;
  }
  body[data-active-view='metrics'] .sidebar-panel {
    display: flex !important;
  }
  body[data-active-view='metrics'] .preview-panel {
    display: none !important;
  }
}

/* ─── Modos de Vista en Pantallas Móviles (< 1024px) ─── */
@media (max-width: 1023.98px) {
  body[data-active-view='editor'] .editor-panel,
  body[data-active-view='split'] .editor-panel {
    display: flex !important;
    flex: 1;
    height: 100%;
    width: 100%;
  }
  body[data-active-view='editor'] .preview-panel,
  body[data-active-view='editor'] .sidebar-panel,
  body[data-active-view='split'] .preview-panel,
  body[data-active-view='split'] .sidebar-panel {
    display: none !important;
  }

  body[data-active-view='preview'] .preview-panel {
    display: flex !important;
    flex: 1;
    height: 100%;
    width: 100%;
    overflow-y: auto;
  }
  body[data-active-view='preview'] .editor-panel,
  body[data-active-view='preview'] .sidebar-panel {
    display: none !important;
  }

  body[data-active-view='metrics'] .sidebar-panel {
    display: flex !important;
    flex: 1;
    height: 100%;
    width: 100%;
    overflow-y: auto;
  }
  body[data-active-view='metrics'] .editor-panel,
  body[data-active-view='metrics'] .preview-panel {
    display: none !important;
  }
}

/* 9. EDITOR · LIENZO PRINCIPAL ============================================ */
.editor {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
}

.editor-menubar,
.editor-toolbar,
.editor-statusbar {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg);
  font-size: 13px;
  flex-shrink: 0;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
}

.editor-statusbar {
  border-top: 1px solid var(--border);
  border-bottom: none;
  color: var(--text-muted);
  font-size: 12px;
  justify-content: space-between;
}

.editor-toolbar {
  gap: 4px;
  flex-wrap: wrap;
}

.editor-menubar {
  gap: 2px;
}

@media (max-width: 768px) {
  .editor-menubar {
    display: none !important;
  }
  .editor-toolbar {
    padding: 6px 10px;
    gap: 4px;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .editor-toolbar::-webkit-scrollbar {
    display: none;
  }
  .editor-toolbar .select-control {
    font-size: 11px;
    padding: 4px 6px;
  }
  #select-font-family {
    max-width: 110px;
    text-overflow: ellipsis;
  }
  #select-font-size {
    max-width: 60px;
  }
}

.menu-item {
  position: relative;
}

.menu-btn {
  padding: 6px 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  border-radius: 4px;
  font-family: var(--font-sans);
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}

.menu-btn:hover {
  background-color: var(--bg-subtle);
  color: var(--text);
}

.menu-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 200px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 4px;
  box-shadow:
    0 4px 16px -2px rgba(26, 24, 21, 0.06),
    0 1px 3px rgba(26, 24, 21, 0.04);
  z-index: 100;
}

html.dark .menu-dropdown {
  box-shadow:
    0 4px 16px -2px rgba(0, 0, 0, 0.4),
    0 1px 3px rgba(0, 0, 0, 0.2);
}

.menu-dropdown button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 7px 10px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  border-radius: 4px;
  font-family: var(--font-sans);
}

.menu-dropdown button:hover {
  background-color: var(--bg-subtle);
}

.menu-dropdown kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
}

.toolbar-separator {
  width: 1px;
  height: 18px;
  background-color: var(--border);
  margin: 0 6px;
}

.select-control {
  padding: 5px 10px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font-sans);
  cursor: pointer;
  color-scheme: light;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.select-control:hover {
  border-color: var(--border-strong);
}

.select-control optgroup {
  background-color: var(--bg-elevated);
  color: var(--accent);
  font-weight: 700;
  font-size: 11px;
  padding: 4px 0;
}

.select-control option {
  background-color: var(--bg-elevated);
  color: var(--text);
  font-weight: 400;
  font-size: 12px;
  padding: 6px 10px;
}

html.dark .select-control {
  color-scheme: dark;
  background-color: #1f1d1a;
  color: #e8e2d5;
  border-color: var(--border-strong);
}

html.dark .select-control optgroup {
  background-color: #161412;
  color: #c9a87a;
}

html.dark .select-control option {
  background-color: #1f1d1a;
  color: #e8e2d5;
}

/* 10. LIENZO DEL EDITOR Y REDIMENSIÓN MULTI-ESQUINA ====================== */
.editor-canvas {
  flex: 1;
  display: flex;
  background-color: var(--bg-canvas);
  position: relative;
  min-height: 160px;
  min-width: 200px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  overflow: visible;
  transition: width 0.05s ease, height 0.05s ease;
}

.editor-canvas.has-custom-size {
  border: 1.5px dashed var(--accent);
  border-radius: 6px;
  box-shadow: 0 4px 20px -4px rgba(0, 0, 0, 0.12);
}

.editor-textarea {
  flex: 1;
  width: 100%;
  height: 100%;
  padding: 32px 40px;
  background-color: transparent;
  color: var(--text);
  border: none;
  outline: none;
  resize: none;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  caret-color: var(--accent);
  -webkit-user-select: text;
  user-select: text;
  touch-action: pan-y;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .editor-textarea {
    padding: 16px 14px;
    font-size: 16px; /* Evita zoom automático en iOS Safari */
    line-height: 1.65;
  }
}

.editor-textarea::placeholder {
  color: var(--text-faint);
  font-style: italic;
}

/* 10.1. TIRADORES DE REDIMENSIÓN EN LAS 4 ESQUINAS ======================== */
.resize-handle {
  position: absolute;
  width: 36px;
  height: 36px;
  z-index: 35;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none !important;
  user-select: none;
  -webkit-user-select: none;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.resize-handle::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent);
  border-style: solid;
  border-width: 0;
  opacity: 0.85;
  transition: all 0.15s ease;
}

@media (max-width: 768px) {
  .resize-handle {
    width: 32px;
    height: 32px;
    opacity: 0.65;
  }
}

.resize-handle:hover,
.resize-handle:active,
.resize-handle.is-dragging {
  opacity: 1;
}

.resize-handle:hover::after,
.resize-handle.is-dragging::after {
  border-color: var(--accent-strong);
  transform: scale(1.25);
  box-shadow: 0 0 8px var(--accent-soft);
}

/* Esquinas específicas con sus formas L y cursores */
.resize-handle-nw {
  top: 0;
  left: 0;
  cursor: nwse-resize;
}
.resize-handle-nw::after {
  top: 4px;
  left: 4px;
  border-top-width: 2.5px;
  border-left-width: 2.5px;
  border-top-left-radius: 3px;
}

.resize-handle-ne {
  top: 0;
  right: 0;
  cursor: nesw-resize;
}
.resize-handle-ne::after {
  top: 4px;
  right: 4px;
  border-top-width: 2.5px;
  border-right-width: 2.5px;
  border-top-right-radius: 3px;
}

.resize-handle-sw {
  bottom: 0;
  left: 0;
  cursor: nesw-resize;
}
.resize-handle-sw::after {
  bottom: 4px;
  left: 4px;
  border-bottom-width: 2.5px;
  border-left-width: 2.5px;
  border-bottom-left-radius: 3px;
}

.resize-handle-se {
  bottom: 0;
  right: 0;
  cursor: nwse-resize;
}
.resize-handle-se::after {
  bottom: 4px;
  right: 4px;
  border-bottom-width: 2.5px;
  border-right-width: 2.5px;
  border-bottom-right-radius: 3px;
}

/* 10.2. BARRA FLOTANTE CONTEXTUAL DE SELECCIÓN ============================ */
.selection-quick-bar {
  position: absolute;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px 8px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow:
    0 8px 24px -4px rgba(26, 24, 21, 0.15),
    0 2px 6px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform: translateX(-50%) translateY(-100%);
  animation: selQuickFade 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
  max-width: 90vw;
  overflow-x: auto;
}

html.dark .selection-quick-bar {
  box-shadow:
    0 8px 24px -4px rgba(0, 0, 0, 0.5),
    0 2px 6px rgba(0, 0, 0, 0.3);
}

@keyframes selQuickFade {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-90%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(-100%) scale(1);
  }
}

.selection-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 2px 6px;
  white-space: nowrap;
}

.selection-divider {
  width: 1px;
  height: 16px;
  background-color: var(--border);
  margin: 0 4px;
}

.btn-sel {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.btn-sel:hover {
  background-color: var(--bg-subtle);
  color: var(--accent);
}

.btn-sel:active {
  background-color: var(--accent-soft);
  transform: scale(0.92);
}

/* 10.3. BARRA DE ACCESORIOS PARA TECLADO MÓVIL =========================== */
.mobile-accessory-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex-shrink: 0;
  touch-action: pan-x;
}

.mobile-accessory-bar::-webkit-scrollbar {
  display: none;
}

.acc-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 34px;
  padding: 0 8px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  touch-action: manipulation;
  flex-shrink: 0;
  transition: all 0.12s ease;
}

.acc-btn:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-strong);
}

.acc-btn:active {
  background-color: var(--accent-soft);
  transform: scale(0.92);
}

.acc-btn-mic.listening {
  background-color: var(--danger) !important;
  color: #ffffff !important;
  border-color: var(--danger) !important;
  animation: micPulse 1.2s infinite ease-in-out;
}

@keyframes micPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(139, 58, 47, 0.6);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(139, 58, 47, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(139, 58, 47, 0);
  }
}

/* 10.4. CÁPSULA FLOTANTE DE MÉTRICAS MÓVILES ============================= */
.mobile-stats-pill {
  position: fixed;
  bottom: 18px;
  right: 16px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 500;
  box-shadow:
    0 4px 16px -2px rgba(26, 24, 21, 0.12),
    0 1px 3px rgba(26, 24, 21, 0.06);
  cursor: pointer;
  touch-action: manipulation;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

html.dark .mobile-stats-pill {
  box-shadow:
    0 4px 16px -2px rgba(0, 0, 0, 0.5),
    0 1px 3px rgba(0, 0, 0, 0.3);
}

.mobile-stats-pill:hover {
  background-color: var(--bg-subtle);
  transform: translateY(-2px);
}

.mobile-stats-pill:active {
  transform: scale(0.96);
  background-color: var(--accent-soft);
}

@media (min-width: 1024px) {
  .mobile-stats-pill {
    display: none !important;
  }
}

/* 10.5. MODO ZEN / FOCUS INMERSIVO ======================================= */
body.zen-mode .app-header,
body.zen-mode .mobile-view-tabs,
body.zen-mode .editor-menubar,
body.zen-mode .editor-toolbar,
body.zen-mode .editor-statusbar,
body.zen-mode .sidebar-panel,
body.zen-mode .mobile-accessory-bar,
body.zen-mode .mobile-stats-pill {
  display: none !important;
}

body.zen-mode .workspace {
  height: 100dvh !important;
  grid-template-columns: 1fr !important;
  background-color: var(--bg-canvas) !important;
}

body.zen-mode .editor-panel {
  display: flex !important;
  height: 100dvh !important;
  background-color: var(--bg-canvas) !important;
}

body.zen-mode .editor-canvas {
  width: 100% !important;
  max-width: 100% !important;
  height: 100% !important;
  border: none !important;
  box-shadow: none !important;
}

body.zen-mode .editor-textarea {
  max-width: 72ch;
  margin: 0 auto;
  padding: 64px 28px;
  font-size: 18px;
  line-height: 1.85;
}

body.zen-mode .resize-handle {
  display: none !important;
}

.btn-exit-zen {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  opacity: 0.35;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

/* 10.6. BARRA DE HERRAMIENTAS WYSIWYG MARKDOWN (STACKEDIT) ============== */
.wysiwyg-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex-shrink: 0;
}

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

.wysiwyg-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.wysiwyg-sep {
  width: 1px;
  height: 18px;
  background-color: var(--border-strong);
  margin: 0 4px;
  flex-shrink: 0;
}

.wys-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.12s ease;
  flex-shrink: 0;
}

.wys-btn:hover {
  background-color: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}

.wys-btn:active {
  background-color: var(--accent-soft);
  color: var(--accent);
  transform: scale(0.94);
}

/* 10.7. LIVE PREVIEW PANEL & TIPOGRAFÍA MARKDOWN (STACKEDIT STYLE) ========= */
.preview-panel {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-canvas);
  min-height: 0;
  height: 100%;
  overflow: hidden;
  border-left: 1px solid var(--border);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  flex-shrink: 0;
}

.preview-title-cluster {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 13px;
}

.btn-preview-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-preview-action:hover {
  background-color: var(--bg-subtle);
  color: var(--text);
}

.preview-body {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  scroll-behavior: smooth;
}

.markdown-preview {
  padding: 40px 48px 120px 48px;
  max-width: 820px;
  margin: 0 auto;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.8;
  word-break: break-word;
}

@media (max-width: 768px) {
  .markdown-preview {
    padding: 24px 18px 100px 18px;
    font-size: 15px;
  }
}

/* Tipografía de encabezados */
.preview-h {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  line-height: 1.3;
}

.preview-h:first-child {
  margin-top: 0;
}

.preview-h1 {
  font-size: 2.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3em;
}

.preview-h2 {
  font-size: 1.7rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.2em;
}

.preview-h3 {
  font-size: 1.35rem;
}

.preview-h4 {
  font-size: 1.15rem;
}

.preview-h5 {
  font-size: 1rem;
  font-weight: 600;
}

.preview-h6 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.preview-p {
  margin-bottom: 1.3em;
}

.preview-hr {
  border: none;
  height: 1px;
  background-color: var(--border);
  margin: 2.5em 0;
}

/* Citas y Blockquotes */
.preview-blockquote {
  border-left: 3px solid var(--accent);
  padding: 10px 20px;
  margin: 1.5em 0;
  background-color: var(--bg-subtle);
  border-radius: 0 8px 8px 0;
  color: var(--text);
  font-style: italic;
}

/* Alertas estilo GitHub (> [!NOTE], etc.) */
.alert-block {
  border: 1px solid var(--border-strong);
  border-left-width: 4px;
  border-radius: 8px;
  padding: 14px 18px;
  margin: 1.6em 0;
  background-color: var(--bg-subtle);
}

.alert-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 6px;
}

.alert-icon {
  font-size: 18px !important;
}

.alert-content {
  font-size: 14px;
  line-height: 1.6;
}

.alert-note {
  border-left-color: #2f81f7;
  background-color: rgba(47, 129, 247, 0.05);
}
.alert-note .alert-header {
  color: #2f81f7;
}

.alert-tip {
  border-left-color: var(--success);
  background-color: rgba(74, 107, 58, 0.06);
}
.alert-tip .alert-header {
  color: var(--success);
}

.alert-important {
  border-left-color: #8957e5;
  background-color: rgba(137, 87, 229, 0.06);
}
.alert-important .alert-header {
  color: #8957e5;
}

.alert-warning {
  border-left-color: #d29922;
  background-color: rgba(210, 153, 34, 0.06);
}
.alert-warning .alert-header {
  color: #d29922;
}

.alert-caution {
  border-left-color: var(--danger);
  background-color: rgba(139, 58, 47, 0.06);
}
.alert-caution .alert-header {
  color: var(--danger);
}

/* Tablas GFM */
.table-wrapper {
  overflow-x: auto;
  margin: 1.8em 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

.preview-table th,
.preview-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.preview-table th {
  background-color: var(--bg-subtle);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

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

.preview-table tbody tr:hover {
  background-color: var(--bg-subtle);
}

/* Listas y Checklists */
.preview-ul,
.preview-ol {
  padding-left: 24px;
  margin-bottom: 1.4em;
}

.preview-ul li,
.preview-ol li {
  margin-bottom: 6px;
}

.task-list {
  list-style: none;
  padding-left: 4px;
  margin-bottom: 1.4em;
}

.task-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 15px;
}

.task-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border-strong);
  border-radius: 4px;
  background-color: var(--bg-elevated);
  cursor: pointer;
  display: inline-grid;
  place-content: center;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.task-checkbox:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.task-checkbox:checked::before {
  content: '✓';
  color: #ffffff;
  font-size: 12px;
  font-weight: bold;
}

.task-checked span {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Bloques de Código Cercados */
.code-block-wrapper {
  margin: 1.8em 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--bg-subtle);
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 14px;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.code-lang {
  text-transform: uppercase;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.btn-copy-code {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-copy-code:hover {
  background-color: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}

.code-block-wrapper pre {
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
}

.inline-code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--accent);
}

/* Fórmulas Matemáticas */
.math-block {
  text-align: center;
  padding: 16px;
  margin: 1.6em 0;
  background-color: var(--bg-subtle);
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 18px;
  overflow-x: auto;
}

.math-inline {
  font-family: var(--font-display);
  font-style: italic;
  padding: 0 4px;
}

/* Enlaces e Imágenes */
.preview-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

.preview-link:hover {
  color: var(--accent-strong);
}

.preview-figure {
  margin: 2em 0;
  text-align: center;
}

.preview-img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.preview-caption {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  font-style: italic;
}

/* 10.8. MODAL DE CENTRO DE EXPORTACIÓN (STACKEDIT STYLE) ================== */
.modal-wide {
  max-width: 580px !important;
}

.export-options-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 480px) {
  .export-options-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.export-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  touch-action: manipulation;
}

.export-card:hover {
  background-color: var(--bg-subtle);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px -2px rgba(0, 0, 0, 0.08);
}

.export-card:active {
  transform: scale(0.98);
}

.export-card-icon {
  font-size: 24px !important;
  color: var(--accent);
  flex-shrink: 0;
}

.export-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.export-card-info strong {
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
}

.export-card-info span {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.btn-exit-zen:hover {
  opacity: 1;
  color: var(--text);
  transform: scale(1.04);
}

/* 11. SIDEBAR · MÉTRICAS EN HAIRLINES ==================================== */
.sidebar {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 0;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
}

.section {
  padding: 28px 28px;
  border-bottom: 1px solid var(--border);
}

.section:last-child {
  border-bottom: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
}

.section-eyebrow {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  display: block;
  margin-bottom: 4px;
}

.section-pill {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Grid de stats principales */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 32px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  font-weight: 500;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-feature-settings: 'tnum' 1;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.stat-row:last-child {
  border-bottom: none;
}

.stat-row-label {
  font-size: 13px;
  color: var(--text-muted);
}

.stat-row-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

/* 12. TABS N-GRAMS ======================================================= */
.tabs {
  display: inline-flex;
  gap: 0;
  padding: 2px;
  background-color: var(--bg-subtle);
  border-radius: 6px;
  margin-bottom: 16px;
}

.tab {
  padding: 5px 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 4px;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  background-color: var(--bg-elevated);
  color: var(--text);
}

/* 13. TOGGLE SWITCH MINIMALISTA ========================================== */
.toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 0;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
}

.toggle-text {
  color: var(--text-muted);
  font-weight: 400;
}

.toggle-switch {
  width: 32px;
  height: 18px;
  background-color: var(--border-strong);
  border-radius: 999px;
  position: relative;
  flex-shrink: 0;
  transition: background-color 0.2s ease;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg-elevated);
  top: 2px;
  left: 2px;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.toggle.active .toggle-switch {
  background-color: var(--accent);
}

.toggle.active .toggle-switch::after {
  transform: translateX(14px);
}

.toggle.active .toggle-text {
  color: var(--text);
}

/* 14. LISTA DE PALABRAS CLAVE ============================================ */
.keywords-list {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
  overflow-y: auto;
}

.keywords-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  gap: 12px;
}

.keywords-list li:last-child {
  border-bottom: none;
}

.keyword-term {
  color: var(--text);
  font-weight: 400;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.keyword-meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.keyword-count {
  color: var(--accent);
  font-weight: 500;
}

.empty-state {
  text-align: center;
  color: var(--text-faint);
  font-style: italic;
  font-size: 13px;
  padding: 24px 0;
}

/* 15. MODALES ============================================================= */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(26, 24, 21, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.show {
  display: flex;
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal {
  width: 100%;
  max-width: 440px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 24px 48px -12px rgba(26, 24, 21, 0.15);
}

html.dark .modal {
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.6);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 20px;
  color: var(--text);
}

.modal-field {
  margin-bottom: 14px;
}

.modal-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.modal-input {
  width: 100%;
  padding: 9px 12px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  transition: border-color 0.15s ease;
}

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

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 24px;
}

/* 16. TOAST NOTIFICATIONS ================================================ */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 10px 18px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 8px 24px -4px rgba(26, 24, 21, 0.1);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.toast-action {
  padding: 4px 10px;
  background-color: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
}

.toast-action:hover {
  background-color: var(--accent-strong);
}

/* 17. UTILIDADES ========================================================== */
.hidden {
  display: none !important;
}

[hidden] {
  display: none !important;
}

.divider-h {
  height: 1px;
  background-color: var(--border);
  border: none;
  margin: 16px 0;
}

.cluster {
  display: flex;
  align-items: center;
  gap: 6px;
}

.cluster-tight {
  display: flex;
  align-items: center;
  gap: 3px;
}

.muted {
  color: var(--text-muted);
}

.faint {
  color: var(--text-faint);
}

.mono {
  font-family: var(--font-mono);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 18. SCROLLBAR GLOBAL =================================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

/* 19. REDUCED MOTION (WCAG 2.3.3) ======================================== */
@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;
  }
}

/* 20. FORCED COLORS (Windows High Contrast) ============================== */
@media (forced-colors: active) {
  .btn,
  .menu-btn,
  .tab,
  .select-control,
  .modal-input {
    border: 1px solid CanvasText;
  }

  .stat-value,
  .section-title {
    color: CanvasText;
  }
}

/* 21. TEMAS ADICIONALES (SEPIA Y NOCHE OLED) ============================= */
html.sepia {
  --bg: #f4ecd8;
  --bg-subtle: #ebdcb9;
  --bg-canvas: #fbf7ef;
  --bg-elevated: #f8f1e1;
  --text: #433422;
  --text-muted: #735d43;
  --text-faint: #998369;
  --accent: #8c6239;
  --accent-strong: #6d4b29;
  --accent-soft: rgba(140, 98, 57, 0.12);
  --border: rgba(67, 52, 34, 0.12);
  --border-strong: rgba(67, 52, 34, 0.24);
  color-scheme: light;
}

html.oled {
  --bg: #000000;
  --bg-subtle: #121212;
  --bg-canvas: #050505;
  --bg-elevated: #181818;
  --text: #f0f0f0;
  --text-muted: #a0a0a0;
  --text-faint: #666666;
  --accent: #38bdf8;
  --accent-strong: #0284c7;
  --accent-soft: rgba(56, 189, 248, 0.15);
  --border: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.28);
  color-scheme: dark;
}

html.solarized {
  --bg: #fdf6e3;
  --bg-subtle: #eee8d5;
  --bg-canvas: #fffdf5;
  --bg-elevated: #eee8d5;
  --text: #657b83;
  --text-muted: #839496;
  --text-faint: #93a1a1;
  --accent: #b58900;
  --accent-strong: #cb4b16;
  --accent-soft: rgba(181, 137, 0, 0.15);
  --border: rgba(101, 123, 131, 0.15);
  --border-strong: rgba(101, 123, 131, 0.3);
  color-scheme: light;
}

html.nordic {
  --bg: #2e3440;
  --bg-subtle: #3b4252;
  --bg-canvas: #242933;
  --bg-elevated: #434c5e;
  --text: #eceff4;
  --text-muted: #d8dee9;
  --text-faint: #4c566a;
  --accent: #88c0d0;
  --accent-strong: #81a1c1;
  --accent-soft: rgba(136, 192, 208, 0.15);
  --border: rgba(216, 222, 233, 0.12);
  --border-strong: rgba(216, 222, 233, 0.25);
  color-scheme: dark;
}

html.dracula {
  --bg: #1e1f29;
  --bg-subtle: #282a36;
  --bg-canvas: #181920;
  --bg-elevated: #44475a;
  --text: #f8f8f2;
  --text-muted: #6272a4;
  --text-faint: #44475a;
  --accent: #50fa7b;
  --accent-strong: #8be9fd;
  --accent-soft: rgba(80, 250, 123, 0.15);
  --border: rgba(98, 114, 164, 0.2);
  --border-strong: rgba(98, 114, 164, 0.4);
  color-scheme: dark;
}

/* 25. TEMPORIZADOR POMODORO DE ENFOQUE =================================== */
.pomodoro-widget {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.pomodoro-display {
  font-weight: 600;
  color: var(--accent);
  min-width: 42px;
  text-align: center;
}

.btn-pomodoro {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  border-radius: 50%;
  transition: color 0.15s ease;
}

.btn-pomodoro:hover {
  color: var(--text);
}

/* 22. OBJETIVO DE PALABRAS (WORD GOAL) & BARRA DE PROGRESO ================ */
.word-goal-container {
  margin-top: 14px;
  padding: 12px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.word-goal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 12px;
}

.word-goal-title {
  font-weight: 500;
  color: var(--text-muted);
}

.word-goal-input {
  width: 64px;
  padding: 2px 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: right;
}

.word-goal-progress-track {
  width: 100%;
  height: 6px;
  background-color: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.word-goal-progress-fill {
  height: 100%;
  width: 0%;
  background-color: var(--accent);
  border-radius: 999px;
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.25s ease;
}

.word-goal-progress-fill.completed {
  background-color: var(--success);
}

/* 23. DRAWER MULTI-DOCUMENTO (NOTAS GUARDADAS) =========================== */
.docs-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 24, 21, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.docs-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.docs-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 320px;
  max-width: 85vw;
  background-color: var(--bg-elevated);
  border-right: 1px solid var(--border-strong);
  box-shadow: 8px 0 32px rgba(0, 0, 0, 0.15);
  z-index: 1010;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.docs-drawer.show {
  transform: translateX(0);
}

.docs-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.docs-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
}

.docs-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.doc-card {
  padding: 12px 14px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.15s ease;
}

.doc-card:hover {
  border-color: var(--border-strong);
  background-color: var(--bg-subtle);
}

.doc-card.active {
  border-color: var(--accent);
  background-color: var(--accent-soft);
}

.doc-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.doc-card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.doc-card-date {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.btn-doc-delete {
  background: transparent;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  opacity: 0.6;
  transition: opacity 0.15s ease, color 0.15s ease;
}

.btn-doc-delete:hover {
  opacity: 1;
  color: var(--danger);
}

/* 24. HISTORIAL DE SNAPSHOTS / VERSIONES ================================= */
.snapshots-list {
  max-height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.snapshot-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.snapshot-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.snapshot-date {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.empty-state {
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* 26. ENLACES WIKI [[ ]] ================================================= */
.wiki-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background-color: var(--accent-soft);
  color: var(--accent-strong);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-weight: 500;
  text-decoration: none;
  font-size: 0.95em;
  transition: all 0.15s ease;
}

.wiki-link:hover {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* 27. FILTRO DE TAGS (#ETIQUETA) ========================================= */
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tag-pill:hover,
.tag-pill.active {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* 28. PLANTILLAS RÁPIDAS (TEMPLATES GRID) ================================= */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.btn-template-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}

.btn-template-card:hover {
  border-color: var(--accent);
  background-color: var(--bg-subtle);
  transform: translateY(-1px);
}

.btn-template-card strong {
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
}

.btn-template-card span {
  font-size: 11px;
  color: var(--text-muted);
}

/* 29. HEATMAP DE HÁBITOS DE ESCRITURA ==================================== */
.heatmap-cell {
  aspect-ratio: 1 / 1;
  border-radius: 4px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  transition: all 0.15s ease;
}

.heatmap-cell[data-level="1"] {
  background-color: var(--accent-soft);
}

.heatmap-cell[data-level="2"] {
  background-color: var(--accent);
  opacity: 0.6;
}

.heatmap-cell[data-level="3"] {
  background-color: var(--accent);
  opacity: 1;
}

/* 30. GUÍA DE AYUDA & TUTORIAL =========================================== */
.help-nav-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.help-tab-btn {
  padding: 6px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.help-tab-btn:hover {
  color: var(--text);
  background-color: var(--bg-subtle);
}

.help-tab-btn.active {
  color: var(--accent-strong);
  background-color: var(--accent-soft);
  border-color: var(--border);
}

.help-list {
  list-style: disc;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.6;
}

.help-list code {
  background-color: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.help-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 8px;
}

.help-table th,
.help-table td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}

.help-table th {
  background-color: var(--bg-subtle);
  font-weight: 600;
  color: var(--text);
}