:root {
  --onenote-purple: #7719aa;
  --onenote-purple-dark: #581080;
  --onenote-purple-light: #f5ebfa;
  --onenote-accent: #9333ea;
  --bg-app: #f3f2f1;
  --bg-surface: #ffffff;
  --bg-ribbon: #faf9f8;
  --bg-sidebar: #f8f7f6;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.12);
  --paper-bg: #ffffff;
  --rule-line-color: rgba(59, 130, 246, 0.22);
  --margin-line-color: rgba(239, 68, 68, 0.28);
}

body.dark-theme {
  --bg-app: #0f172a;
  --bg-surface: #1e293b;
  --bg-ribbon: #1e293b;
  --bg-sidebar: #162032;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --onenote-purple-light: #3b1754;
  --paper-bg: #1e293b;
  --rule-line-color: rgba(148, 163, 184, 0.18);
  --margin-line-color: rgba(248, 113, 113, 0.25);
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-app);
  -webkit-font-smoothing: antialiased;
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ==========================================
   BARRA SUPERIOR (HEADER PURPLE ONENOTE)
   ========================================== */
.topbar {
  height: 48px;
  background: linear-gradient(90deg, var(--onenote-purple-dark) 0%, var(--onenote-purple) 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  gap: 12px;
  user-select: none;
  z-index: 40;
}

.topbar-left, .topbar-center, .topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-center {
  flex: 1;
  justify-content: center;
  max-width: 720px;
}

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

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: #ffffff;
  color: var(--onenote-purple);
  font-weight: 800;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.brand-text {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-title {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.2px;
}

.os-badge {
  font-size: 11px;
  background: rgba(255, 255, 255, 0.18);
  padding: 2px 7px;
  border-radius: 99px;
  font-weight: 500;
}

.icon-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.16);
}

/* Buscador Global */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  padding: 0 10px;
  height: 32px;
  width: 100%;
  max-width: 340px;
  transition: background 0.2s, box-shadow 0.2s;
}

.search-box:focus-within {
  background: #ffffff;
  color: #1e293b;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.search-box input {
  background: transparent;
  border: none;
  color: inherit;
  font-size: 13px;
  width: 100%;
  padding-left: 8px;
  outline: none;
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.8);
}

.search-box:focus-within input::placeholder {
  color: #94a3b8;
}

.search-dropdown {
  position: absolute;
  top: 38px;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  max-height: 300px;
  overflow-y: auto;
  z-index: 100;
}

.search-result-item {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  font-size: 13px;
}

.search-result-item:hover {
  background: var(--onenote-purple-light);
}

.search-result-meta {
  font-size: 11px;
  color: var(--text-muted);
}

/* Píldora de estado del Boli Táctil */
.pointer-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.25);
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 12px;
  white-space: nowrap;
}

.pressure-badge {
  background: rgba(255, 255, 255, 0.18);
  padding: 1px 6px;
  border-radius: 99px;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

/* Estado de Sincronización y Botones Google Drive */
.sync-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  opacity: 0.95;
  white-space: nowrap;
}

.sync-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
}

.sync-dot.saving {
  background: #facc15;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.topbar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 11px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  white-space: nowrap;
}

.topbar-btn:hover {
  background: rgba(255, 255, 255, 0.26);
}

.google-auth-btn {
  background: #ffffff;
  color: #1e293b;
  border-color: #ffffff;
}

.google-auth-btn:hover {
  background: #f8fafc;
}

.user-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: cover;
}

/* ==========================================
   CINTA DE OPCIONES (RIBBON ONENOTE)
   ========================================== */
.ribbon {
  background: var(--bg-ribbon);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  user-select: none;
  z-index: 30;
}

.ribbon-tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
  overflow-x: auto;
}

.ribbon-tabs-left, .ribbon-tabs-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.ribbon-tab {
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

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

.ribbon-tab.active {
  color: var(--onenote-purple);
  border-bottom-color: var(--onenote-purple);
}

.ribbon-mini-btn {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 9px;
  border-radius: 5px;
  font-size: 12px;
  cursor: pointer;
}

.ribbon-mini-btn:hover {
  background: var(--onenote-purple-light);
}

.ribbon-mini-btn.danger:hover {
  background: #fee2e2;
  color: #b91c1c;
  border-color: #fca5a5;
}

.lasso-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}

.lasso-badge {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--onenote-purple);
  background: var(--onenote-purple-light);
  padding: 3px 8px;
  border-radius: 99px;
}

.ribbon-panel {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  min-height: 54px;
  overflow-x: auto;
}

.ribbon-panel.active {
  display: flex;
}

.ribbon-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.ribbon-divider {
  width: 1px;
  height: 32px;
  background: var(--border-color);
  flex-shrink: 0;
}

.group-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 2px;
}

.ribbon-hint {
  font-size: 12.5px;
  color: var(--text-muted);
}

kbd {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 11px;
  font-family: monospace;
}

/* Botones de Herramientas y Bolígrafos */
.tool-btn, .pen-preset-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  height: 36px;
  border-radius: 7px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.tool-btn:hover, .pen-preset-btn:hover {
  border-color: var(--onenote-purple);
  background: var(--onenote-purple-light);
}

.tool-btn.active, .pen-preset-btn.active {
  background: var(--onenote-purple);
  color: #ffffff;
  border-color: var(--onenote-purple);
  box-shadow: 0 2px 6px rgba(119, 25, 170, 0.3);
}

.tool-btn.primary-accent {
  border-color: var(--onenote-purple);
  color: var(--onenote-purple);
}

.tool-btn.danger-hover:hover {
  background: #fee2e2;
  border-color: #ef4444;
  color: #b91c1c;
}

.pen-tip {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
}

.highlighter-tip {
  border-radius: 3px;
  width: 16px;
  height: 10px;
  transform: skewX(-15deg);
}

.rainbow-tip {
  background: conic-gradient(#ef4444, #f59e0b, #10b981, #3b82f6, #8b5cf6, #ec4899, #ef4444);
}

.format-btn, .tag-btn {
  height: 34px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 12.5px;
  cursor: pointer;
}

.format-btn:hover, .tag-btn:hover {
  background: var(--onenote-purple-light);
  border-color: var(--onenote-purple);
}

.ribbon-select {
  height: 34px;
  padding: 0 8px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 12.5px;
}

/* Paleta de Colores y Grosor */
.color-swatches, .paper-colors {
  display: flex;
  align-items: center;
  gap: 5px;
}

.color-swatch, .paper-color-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  cursor: pointer;
  transition: transform 0.12s;
}

.color-swatch.active, .paper-color-btn.active {
  transform: scale(1.18);
  border-color: var(--onenote-purple);
  box-shadow: 0 0 0 2px rgba(119, 25, 170, 0.25);
}

#customInkColorPicker {
  width: 26px;
  height: 26px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.thickness-control {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  margin-left: 6px;
}

.thickness-control input[type="range"] {
  width: 80px;
  accent-color: var(--onenote-purple);
}

.toggle-check {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
}

.toggle-check input {
  accent-color: var(--onenote-purple);
}

/* ==========================================
   WORKSPACE: PANELES LATERALES + LIENZO
   ========================================== */
.workspace {
  display: flex;
  height: calc(100vh - 103px);
  width: 100%;
  overflow: hidden;
}

.sidebar-container {
  display: flex;
  width: 390px;
  min-width: 340px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  transition: margin-left 0.22s ease;
  user-select: none;
  z-index: 20;
}

.sidebar-container.collapsed {
  margin-left: -390px;
}

.notebook-sections-col {
  width: 190px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.pages-col {
  width: 200px;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
}

.notebook-selector-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px;
  border-bottom: 1px solid var(--border-color);
}

.notebook-select {
  flex: 1;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-weight: 700;
  font-size: 13px;
  padding: 0 6px;
}

.mini-icon-btn {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  cursor: pointer;
}

.col-subheader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.4px;
  border-bottom: 1px solid var(--border-color);
}

.mini-add-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 5px;
  padding: 2px 7px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
}

.mini-add-btn.primary {
  background: var(--onenote-purple);
  color: #ffffff;
  border-color: var(--onenote-purple);
}

.sections-list, .pages-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  padding: 6px;
}

.section-item, .page-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 6px;
  margin-bottom: 4px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.12s;
}

.section-item {
  border-left: 5px solid var(--onenote-purple);
}

.section-item:hover, .page-item:hover {
  background: rgba(119, 25, 170, 0.08);
}

.section-item.active, .page-item.active {
  background: var(--onenote-purple-light);
  font-weight: 700;
  color: var(--onenote-purple);
}

.page-item.subpage {
  margin-left: 14px;
  font-size: 12.5px;
  border-left: 2px solid var(--border-color);
}

.item-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.item-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s;
}

.section-item:hover .item-actions,
.page-item:hover .item-actions {
  opacity: 1;
}

.item-action-btn {
  background: transparent;
  border: none;
  font-size: 11px;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  color: var(--text-muted);
}

.item-action-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-main);
}

/* ==========================================
   LIENZO INFINITO / PÁGINA MULTIMODAL
   ========================================== */
.canvas-viewport {
  flex: 1;
  overflow: auto;
  background: var(--bg-app);
  position: relative;
  padding: 18px;
}

.page-surface {
  position: relative;
  width: 1600px;
  height: 2000px;
  background-color: var(--paper-bg);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  transform-origin: 0 0;
  overflow: hidden;
}

/* Estilos de Papel de OneNote (Renglones, Cuadrícula, Puntos) */
.page-surface.paper-blank {
  background-image: none;
}

.page-surface.paper-ruled-narrow {
  background-image:
    linear-gradient(90deg, transparent 64px, var(--margin-line-color) 64px, var(--margin-line-color) 66px, transparent 66px),
    repeating-linear-gradient(0deg, transparent, transparent 23px, var(--rule-line-color) 23px, var(--rule-line-color) 24px);
}

.page-surface.paper-ruled-wide {
  background-image:
    linear-gradient(90deg, transparent 72px, var(--margin-line-color) 72px, var(--margin-line-color) 74px, transparent 74px),
    repeating-linear-gradient(0deg, transparent, transparent 31px, var(--rule-line-color) 31px, var(--rule-line-color) 32px);
}

.page-surface.paper-grid-small {
  background-size: 20px 20px;
  background-image:
    linear-gradient(to right, var(--rule-line-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-line-color) 1px, transparent 1px);
}

.page-surface.paper-grid-large {
  background-size: 36px 36px;
  background-image:
    linear-gradient(to right, var(--rule-line-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-line-color) 1px, transparent 1px);
}

.page-surface.paper-dots {
  background-image: radial-gradient(var(--rule-line-color) 1.6px, transparent 1.6px);
  background-size: 24px 24px;
}

/* Encabezado de Página OneNote */
.page-header-zone {
  position: relative;
  z-index: 12;
  padding: 28px 40px 14px 88px;
  max-width: 920px;
}

.page-title-input {
  width: 100%;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 6px;
  outline: none;
}

.page-title-input:focus {
  border-bottom-color: var(--onenote-purple);
}

.page-meta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.page-hint-pill {
  background: rgba(119, 25, 170, 0.09);
  color: var(--onenote-purple);
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 500;
}

/* CAPAS DEL LIENZO:
   - blocks-layer: Contenedores de texto e imágenes flotantes
   - ink-canvas: Trazos vectoriales del boli táctil
   - overlay-canvas: Previsualización de formas y selección de lazo
*/
.blocks-layer {
  position: absolute;
  inset: 0;
  z-index: 10;
}

.ink-canvas, .overlay-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Crítico en Chromebook y pantallas táctiles: evita gestos del navegador al escribir con el boli táctil */
  touch-action: none;
}

.ink-canvas {
  z-index: 15;
}

.overlay-canvas {
  z-index: 16;
  pointer-events: none;
}

/* Cuando estamos en modo Texto, el canvas deja pasar los clics del ratón a los contenedores */
.page-surface.mode-text .ink-canvas {
  pointer-events: none;
}

.page-surface.mode-draw .ink-canvas {
  pointer-events: auto;
  cursor: crosshair;
}

.page-surface.mode-pan .ink-canvas {
  pointer-events: auto;
  cursor: grab;
}

/* ==========================================
   CONTENEDORES DE TEXTO E IMÁGENES FLOTANTES
   ========================================== */
.note-container {
  position: absolute;
  min-width: 240px;
  min-height: 56px;
  max-width: 780px;
  border: 1.5px solid transparent;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(1px);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: border-color 0.15s, box-shadow 0.15s;
}

body.dark-theme .note-container {
  background: rgba(30, 41, 59, 0.8);
}

.note-container.sticky-note {
  background: #fef08a !important;
  color: #1e293b !important;
  border-color: #facc15;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.note-container:hover,
.note-container:focus-within {
  border-color: var(--onenote-purple);
  box-shadow: 0 4px 14px rgba(119, 25, 170, 0.15);
}

.container-handle-bar {
  height: 22px;
  background: var(--onenote-purple-light);
  border-bottom: 1px solid var(--border-color);
  border-radius: 5px 5px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  cursor: move;
  opacity: 0;
  transition: opacity 0.15s;
  user-select: none;
}

.note-container:hover .container-handle-bar,
.note-container:focus-within .container-handle-bar,
.note-container.sticky-note .container-handle-bar {
  opacity: 1;
}

.grip-dots {
  font-size: 11px;
  color: var(--onenote-purple);
  font-weight: 700;
  letter-spacing: 1px;
}

.container-delete-btn {
  background: transparent;
  border: none;
  color: #dc2626;
  font-size: 12px;
  cursor: pointer;
  padding: 0 4px;
}

.note-editable {
  padding: 10px 12px;
  min-height: 44px;
  outline: none;
  font-size: 15px;
  line-height: 1.55;
  color: inherit;
  word-break: break-word;
}

.note-editable:empty::before {
  content: attr(data-placeholder);
  color: var(--text-muted);
  pointer-events: none;
}

.note-editable table {
  border-collapse: collapse;
  width: 100%;
  margin: 6px 0;
}

.note-editable td, .note-editable th {
  border: 1px solid #94a3b8;
  padding: 6px 8px;
  min-width: 60px;
}

.onenote-todo-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 3px 0;
}

.onenote-todo-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--onenote-purple);
  cursor: pointer;
}

/* Imágenes Flotantes Redimensionables */
.image-container {
  position: absolute;
  border: 2px solid transparent;
  border-radius: 6px;
  user-select: none;
  transition: border-color 0.15s;
}

.image-container:hover,
.image-container.selected {
  border-color: var(--onenote-purple);
  box-shadow: var(--shadow-md);
}

.image-container img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 4px;
  pointer-events: none;
}

.image-container .container-handle-bar {
  position: absolute;
  top: -24px;
  left: 0;
  right: 0;
  border-radius: 5px;
}

.image-container:hover .container-handle-bar {
  opacity: 1;
}

.resize-handle {
  position: absolute;
  width: 16px;
  height: 16px;
  right: -6px;
  bottom: -6px;
  background: var(--onenote-purple);
  border: 2px solid #ffffff;
  border-radius: 50%;
  cursor: nwse-resize;
  opacity: 0;
  transition: opacity 0.15s;
}

.image-container:hover .resize-handle {
  opacity: 1;
}

/* ==========================================
   MODALES (<dialog closedby="any">)
   ========================================== */
dialog.modern-dialog {
  margin: auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-surface);
  color: var(--text-main);
  width: 92%;
  max-width: 620px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.28);
  padding: 0;
}

dialog.modern-dialog::backdrop {
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(3px);
}

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

.dialog-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dialog-header h2 {
  font-size: 16px;
  font-weight: 700;
}

.dialog-close-btn {
  background: transparent;
  border: none;
  font-size: 18px;
  color: var(--text-muted);
  cursor: pointer;
}

.dialog-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.account-card {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.account-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--onenote-purple);
  color: #ffffff;
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.account-info h3 {
  font-size: 15px;
}

.account-info p {
  font-size: 12.5px;
  color: var(--text-muted);
}

.account-actions, .drive-buttons-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-primary, .btn-secondary, .btn-danger {
  padding: 8px 14px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--onenote-purple);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--onenote-purple-dark);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--onenote-purple-light);
  border-color: var(--onenote-purple);
}

.btn-danger {
  background: #fee2e2;
  color: #b91c1c;
  border-color: #fca5a5;
}

.drive-sync-section h3 {
  font-size: 14px;
  margin-bottom: 10px;
}

.drive-files-list {
  margin-top: 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px;
  max-height: 160px;
  overflow-y: auto;
  background: var(--bg-app);
  font-size: 12.5px;
}

.drive-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-color);
}

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

.topbar-avatar-badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--onenote-purple);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.direct-login-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid var(--border-color);
}

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

.form-row label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-row input {
  height: 36px;
  padding: 0 12px;
  border-radius: 7px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 13.5px;
}

.form-row input:focus {
  outline: 2px solid var(--onenote-purple);
  border-color: transparent;
}

.form-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.saved-accounts-wrap {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.saved-accounts-title {
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 600;
}

.saved-accounts-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.saved-account-chip {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 99px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--onenote-purple);
  cursor: pointer;
}

.saved-account-chip:hover {
  background: var(--onenote-purple-light);
}

/* Modal PWA / Android QR */
.pwa-install-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: var(--onenote-purple-light);
  border: 1px solid rgba(119, 25, 170, 0.25);
  border-radius: 10px;
  padding: 14px;
}

.pwa-install-banner h3 {
  font-size: 14.5px;
  color: var(--onenote-purple);
  margin-bottom: 4px;
}

.pwa-install-banner p {
  font-size: 12.5px;
  color: var(--text-muted);
}

.android-wifi-card {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px;
}

.qr-box {
  width: 150px;
  height: 150px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.qr-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.wifi-instructions {
  flex: 1;
  font-size: 13px;
  line-height: 1.45;
}

.wifi-instructions h3 {
  font-size: 14px;
  margin-bottom: 6px;
}

.wifi-instructions ol {
  padding-left: 18px;
  margin-bottom: 8px;
}

.url-copy-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 10px;
}

.url-copy-box code {
  flex: 1;
  font-weight: 700;
  color: var(--onenote-purple);
  font-size: 13px;
  word-break: break-all;
}

.camera-body {
  align-items: center;
}

.camera-video {
  width: 100%;
  max-height: 340px;
  background: #000;
  border-radius: 8px;
}

/* ==========================================
   ESTILOS DE GOOGLE DOCS MODAL Y BOTONES
   ========================================== */
.gdocs-btn {
  background: rgba(59, 130, 246, 0.25);
  border-color: rgba(147, 197, 253, 0.55);
}

.gdocs-btn:hover {
  background: rgba(59, 130, 246, 0.42);
}

.gdocs-card {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.gdocs-card.highlight-card {
  background: var(--onenote-purple-light);
  border-color: rgba(119, 25, 170, 0.25);
}

.gdocs-card h3 {
  font-size: 14.5px;
  color: var(--text-main);
}

.gdocs-import-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.import-mode-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  flex-wrap: wrap;
}

.gdoc-url-row {
  display: flex;
  gap: 8px;
}

.gdoc-url-row input {
  flex: 1;
  height: 36px;
  padding: 0 10px;
  border-radius: 7px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 13px;
}

/* ==========================================
   BARRA RÁPIDA Y MODO SIMPLE MÓVIL (TEXTO A PANTALLA COMPLETA)
   ========================================== */
.mobile-quick-toolbar {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  user-select: none;
  z-index: 30;
}

.m-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 32px;
  padding: 0 10px;
  border-radius: 99px;
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  flex-shrink: 0;
}

.m-tool-btn.active {
  background: var(--onenote-purple);
  color: #ffffff;
  border-color: var(--onenote-purple);
}

.m-tool-btn.gdoc-accent {
  border-color: #2563eb;
  color: #1d4ed8;
  background: #eff6ff;
}

/* Cuando está activo el Modo Simple (por defecto en móvil Android o al conmutarlo):
   - Se oculta el Ribbon pesado y aparece la barra simple de 1 fila.
   - La página y el texto ocupan prácticamente el 100% del ancho y alto de la pantalla. */
body.mobile-simple-mode .ribbon {
  display: none !important;
}

body.mobile-simple-mode .mobile-quick-toolbar {
  display: flex;
}

body.mobile-simple-mode .workspace {
  height: calc(100vh - 92px);
}

body.mobile-simple-mode .canvas-viewport {
  padding: 0;
  overflow-x: hidden;
}

body.mobile-simple-mode .page-surface {
  width: 100% !important;
  min-height: calc(100vh - 92px);
  height: auto !important;
  border-radius: 0;
  box-shadow: none;
  transform: none !important;
  padding-bottom: 80px;
}

body.mobile-simple-mode .page-surface.paper-ruled-wide,
body.mobile-simple-mode .page-surface.paper-ruled-narrow {
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 31px,
    var(--rule-line-color) 31px,
    var(--rule-line-color) 32px
  );
}

body.mobile-simple-mode .page-header-zone {
  padding: 12px 14px 8px 14px;
  max-width: 100%;
}

body.mobile-simple-mode .page-title-input {
  font-size: 22px;
  padding-bottom: 4px;
}

body.mobile-simple-mode .page-hint-pill {
  display: none;
}

body.mobile-simple-mode .blocks-layer {
  position: relative;
  inset: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 4px 12px 40px 12px;
  width: 100%;
}

body.mobile-simple-mode .note-container {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  width: 100% !important;
  max-width: 100% !important;
  border: none;
  border-radius: 8px;
  background: transparent;
  box-shadow: none;
}

body.mobile-simple-mode .note-container:first-of-type .note-editable {
  min-height: calc(100vh - 210px);
}

body.mobile-simple-mode .note-editable {
  padding: 6px 4px;
  font-size: 17px;
  line-height: 1.65;
}

body.mobile-simple-mode .note-container .container-handle-bar {
  height: 20px;
  opacity: 0.7;
  background: transparent;
  border-bottom: none;
  justify-content: flex-end;
}

body.mobile-simple-mode .note-container .grip-dots {
  display: none;
}

body.mobile-simple-mode .image-container {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  width: 100% !important;
  max-width: 520px !important;
  height: auto !important;
  margin: 6px 0;
}

/* ==========================================
   TOAST NOTIFICATIONS
   ========================================== */
.toast-container {
  position: fixed;
  bottom: 18px;
  right: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
}

.toast {
  background: #1e293b;
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--onenote-purple);
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 900px) {
  .topbar {
    height: 44px;
    padding: 0 8px;
    gap: 6px;
  }
  .sidebar-container {
    position: absolute;
    height: calc(100vh - 86px);
    box-shadow: var(--shadow-md);
    width: 310px;
    min-width: 280px;
  }
  .sidebar-container.collapsed {
    margin-left: -320px;
  }
  .os-badge, .pointer-pill, .hide-on-mobile, .search-box {
    display: none;
  }
  .android-wifi-card, .pwa-install-banner, .gdoc-url-row {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .hide-on-small-phone {
    display: none !important;
  }
}

/* ============================================================================
   1. BÚSQUEDA INTERNA EN LA NOTA / BLOC (MATERIAL DESIGN 3 + CSS HIGHLIGHTS)
   Cumple con modern-web-guidance: highlight-text-ranges (::highlight + fallback)
   ============================================================================ */
::highlight(search-results) {
  background-color: #fef08a;
  color: #0f172a;
}

::highlight(search-current) {
  background-color: #f97316;
  color: #ffffff;
  text-decoration: underline 2px solid #7c2d12;
}

mark.in-note-highlight-mark {
  background-color: #fef08a;
  color: #0f172a;
  border-radius: 3px;
  padding: 0 2px;
}

mark.in-note-highlight-mark.active-match {
  background-color: #f97316;
  color: #ffffff;
  text-decoration: underline 2px solid #7c2d12;
  box-shadow: 0 0 0 2px rgba(249, 115, 22, 0.35);
}

.in-note-search-trigger.active {
  background: #ffffff !important;
  color: var(--onenote-purple) !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.ai-assistant-top-btn {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.24), rgba(250, 204, 21, 0.28)) !important;
  border: 1px solid rgba(255, 255, 255, 0.45) !important;
}

.ai-assistant-top-btn.active {
  background: #ffffff !important;
  color: var(--onenote-purple) !important;
}

.m-tool-btn.ai-accent {
  border-color: #7c3aed;
  color: #6d28d9;
  background: #f5f3ff;
}

.in-note-search-bar {
  position: sticky;
  top: 10px;
  z-index: 35;
  margin: 0 auto 14px auto;
  max-width: 780px;
  width: calc(100% - 24px);
  background: var(--bg-surface);
  border: 1.5px solid var(--onenote-purple);
  border-radius: 999px;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  box-shadow: 0 8px 24px rgba(119, 25, 170, 0.18);
  animation: slideIn 0.18s ease-out;
}

.in-note-search-field-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.in-note-search-icon {
  color: var(--onenote-purple);
  flex-shrink: 0;
}

.in-note-search-input {
  border: none;
  background: transparent;
  color: var(--text-main);
  font-size: 14px;
  width: 100%;
  outline: none;
}

.in-note-scope-select {
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  flex-shrink: 0;
}

.in-note-search-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.in-note-match-counter {
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--onenote-purple);
  background: var(--onenote-purple-light);
  padding: 4px 10px;
  border-radius: 999px;
  min-width: 54px;
  text-align: center;
}

.in-note-nav-btn {
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}

.in-note-nav-btn:hover:not(:disabled) {
  background: var(--onenote-purple);
  color: #ffffff;
  border-color: var(--onenote-purple);
}

.in-note-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.in-note-close-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.in-note-close-btn:hover {
  background: var(--bg-app);
  color: var(--text-main);
}

.page-header-quick-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.page-action-pill {
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}

.page-action-pill:hover {
  border-color: var(--onenote-purple);
  color: var(--onenote-purple);
}

.page-action-pill.ai-pill {
  background: var(--onenote-purple-light);
  color: var(--onenote-purple);
  border-color: rgba(119, 25, 170, 0.3);
}

.page-item-match-badge {
  background: #f97316;
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  margin-left: 6px;
}

/* ============================================================================
   2. AGENTE DE IA CONVERSACIONAL ("ASISTENTE DE NOTA") — FAB M3 Y BOTTOMSHEET
   ============================================================================ */
.ai-assistant-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  height: 54px;
  padding: 0 20px;
  border-radius: 16px;
  border: none;
  background: linear-gradient(135deg, #7719aa 0%, #4f46e5 100%);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.38), 0 2px 6px rgba(0, 0, 0, 0.18);
  transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.2s;
}

.ai-assistant-fab:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(79, 70, 229, 0.48);
}

.ai-assistant-fab:active {
  transform: translateY(0) scale(0.98);
}

.ai-sparkles-svg {
  color: #fde047;
  flex-shrink: 0;
}

.ai-fab-badge {
  background: #ef4444;
  color: #ffffff;
  font-size: 11px;
  font-weight: 800;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.ai-sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.38);
  backdrop-filter: blur(2px);
  z-index: 94;
}

.ai-assistant-sheet {
  position: fixed;
  top: 48px;
  right: 0;
  bottom: 0;
  width: 400px;
  max-width: 100vw;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-color);
  box-shadow: -8px 0 30px rgba(15, 23, 42, 0.16);
  z-index: 95;
  display: flex;
  flex-direction: column;
  animation: aiSheetSlideLeft 0.22s cubic-bezier(0.2, 0, 0, 1);
}

@keyframes aiSheetSlideLeft {
  from { transform: translateX(100%); opacity: 0.5; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes aiSheetSlideUp {
  from { transform: translateY(100%); opacity: 0.5; }
  to { transform: translateY(0); opacity: 1; }
}

.ai-sheet-drag-handle {
  display: none;
  justify-content: center;
  padding: 10px 0 4px 0;
}

.ai-sheet-drag-handle span {
  width: 36px;
  height: 4px;
  border-radius: 999px;
  background: #cbd5e1;
}

.ai-sheet-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: linear-gradient(135deg, rgba(119, 25, 170, 0.08), rgba(79, 70, 229, 0.08));
}

.ai-sheet-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.ai-avatar-badge {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, #7719aa, #4f46e5);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.ai-sheet-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.ai-context-subtitle {
  font-size: 11.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-sheet-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ai-context-select {
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 8px;
  cursor: pointer;
}

.ai-live-context-banner {
  padding: 8px 14px;
  background: var(--onenote-purple-light);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-main);
}

.ai-context-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  flex-shrink: 0;
}

#aiLiveContextSummary {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.ai-mini-link-btn {
  border: none;
  background: rgba(119, 25, 170, 0.12);
  color: var(--onenote-purple);
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
}

.ai-mini-link-btn:hover {
  background: var(--onenote-purple);
  color: #ffffff;
}

.ai-sheet-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-ribbon);
}

.ai-sheet-tab {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 10px 8px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  border-bottom: 2.5px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.ai-sheet-tab.active {
  color: var(--onenote-purple);
  border-bottom-color: var(--onenote-purple);
  background: var(--bg-surface);
}

.ai-tab-pill {
  background: var(--onenote-purple);
  color: #ffffff;
  font-size: 10.5px;
  padding: 1px 6px;
  border-radius: 999px;
}

.ai-sheet-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.ai-quick-prompts {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.ai-prompt-chip {
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 11.5px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s;
}

.ai-prompt-chip:hover {
  border-color: var(--onenote-purple);
  background: var(--onenote-purple-light);
  color: var(--onenote-purple);
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-msg-bubble {
  max-width: 90%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
  word-wrap: break-word;
}

.ai-msg-bubble.assistant {
  align-self: flex-start;
  background: var(--bg-app);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-color);
}

.ai-msg-bubble.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #7719aa, #4f46e5);
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.ai-msg-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.ai-inline-action-btn {
  border: 1px solid var(--onenote-purple);
  background: var(--bg-surface);
  color: var(--onenote-purple);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.ai-inline-action-btn:hover {
  background: var(--onenote-purple);
  color: #ffffff;
}

.ai-chat-form {
  padding: 10px 12px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 8px;
  background: var(--bg-surface);
}

.ai-chat-input {
  flex: 1;
  border: 1px solid var(--border-color);
  background: var(--bg-app);
  color: var(--text-main);
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 13px;
  outline: none;
}

.ai-chat-input:focus {
  border-color: var(--onenote-purple);
}

.ai-chat-send-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: var(--onenote-purple);
  color: #ffffff;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Vista 2: Gestión de Tareas y Recordatorios */
#aiTasksPanelView {
  padding: 12px;
  overflow-y: auto;
  gap: 10px;
}

.ai-extract-btn {
  width: 100%;
  justify-content: center;
}

.ai-quick-reminder-form {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-task-input {
  width: 100%;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  outline: none;
}

.ai-reminder-row {
  display: flex;
  gap: 6px;
}

.ai-reminder-select {
  flex: 1;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 12px;
}

.ai-save-reminder-btn {
  padding: 6px 12px;
  font-size: 12px;
  white-space: nowrap;
}

.ai-tasks-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.ai-tasks-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-task-card {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12.5px;
}

.ai-task-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.ai-task-title {
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

.ai-task-meta {
  font-size: 11px;
  color: var(--text-muted);
}

.ai-task-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* Adaptación Responsiva a BottomSheet en Móvil / Tablet */
@media (max-width: 900px) {
  .in-note-search-bar {
    flex-wrap: wrap;
    border-radius: 16px;
    padding: 8px 10px;
  }
  .in-note-search-controls {
    width: 100%;
    justify-content: space-between;
    padding-top: 4px;
    border-top: 1px solid var(--border-color);
  }
  .ai-assistant-fab {
    right: 16px;
    bottom: 18px;
    height: 50px;
    padding: 0 16px;
  }
  .ai-assistant-sheet {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 80vh;
    max-height: 85vh;
    border-left: none;
    border-top: 1px solid var(--border-color);
    border-radius: 24px 24px 0 0;
    box-shadow: 0 -10px 32px rgba(15, 23, 42, 0.28);
    animation: aiSheetSlideUp 0.24s cubic-bezier(0.2, 0, 0, 1);
  }
  .ai-sheet-drag-handle {
    display: flex;
  }
}