/* ==========================================================================
   Fijate Tools - Generador visual de CSS Grid
   Variables corporativas, diseño responsive, lienzo interactivo y temas
   ========================================================================== */

:root {
  --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Paleta cromática modo claro */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;

  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --accent-purple: #8b5cf6;

  --grid-line-color: rgba(59, 130, 246, 0.35);
  --grid-bg-pattern: #f1f5f9;
  --code-bg: #0b0f17;
  --code-text: #e2e8f0;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --bg-page: #0b0f17;
  --bg-card: #131a26;
  --bg-subtle: #1a2333;
  --bg-input: #1a2333;
  --border-color: #243045;
  --border-focus: #60a5fa;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: rgba(59, 130, 246, 0.15);
  --primary-border: rgba(59, 130, 246, 0.3);

  --grid-line-color: rgba(96, 165, 250, 0.4);
  --grid-bg-pattern: #172030;
  --code-bg: #070a0f;
  --code-text: #f1f5f9;
}

/* ==========================================================================
   Contención canónica del layout
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.5;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6,
.brand-title,
.config-title,
.presets-heading,
.faq-section-title {
  font-family: var(--font-heading);
  letter-spacing: -0.015em;
  font-weight: 700;
  margin-top: 0;
}

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

.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  box-sizing: border-box;
  flex: 1 0 auto;
  width: 100%;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  width: 100%;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  width: 100%;
}

/* ==========================================================================
   Tarjeta y contenedor de la aplicación
   ========================================================================== */
.grid-app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 2rem;
}

/* Barra superior de herramientas */
.app-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding: 0.875rem 1.25rem;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
}

.mode-tabs {
  display: flex;
  gap: 0.375rem;
  background: var(--bg-page);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: none;
  padding: 0.45rem 0.85rem;
  font-family: var(--font-main);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.tab-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.toolbar-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.viewport-selector {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--bg-page);
  padding: 0.2rem 0.35rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.viewport-label {
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-weight: 600;
  margin-right: 0.25rem;
  margin-left: 0.25rem;
}

.btn-viewport {
  background: transparent;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s;
}

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

.btn-viewport.active {
  background: var(--primary);
  color: #ffffff;
}

.canvas-helpers {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

/* Switch toggle */
.toggle-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}

.toggle-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  width: 34px;
  height: 20px;
  background-color: var(--border-color);
  border-radius: 20px;
  position: relative;
  transition: background-color 0.2s;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: #ffffff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(14px);
}

/* ==========================================================================
   Espacio de trabajo en 2 columnas: Lienzo y Controles
   ========================================================================== */
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  min-height: 520px;
}

@media (max-width: 960px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

/* Columna izquierda: Lienzo */
.canvas-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
  border-right: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}

.canvas-wrapper-outer {
  flex: 1;
  padding: 1.5rem;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 440px;
}

.canvas-wrapper {
  width: 100%;
  max-width: 100%;
  transition: max-width 0.25s ease;
  display: flex;
  flex-direction: column;
}

/* Encabezados de columnas superiores */
.grid-track-headers-cols {
  display: grid;
  margin-left: 48px; /* Espacio para el encabezado de fila */
  margin-bottom: 6px;
  gap: var(--ui-col-gap, 16px);
}

.track-header-col {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  user-select: none;
}

.track-header-col input {
  width: 44px;
  border: none;
  background: transparent;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  text-align: center;
  padding: 1px;
}

.track-header-col input:focus {
  outline: 1px solid var(--primary);
  border-radius: 3px;
  background: var(--bg-input);
}

/* Fila media que contiene encabezados de filas + escenario */
.canvas-middle-row {
  display: flex;
  gap: 6px;
  width: 100%;
}

/* Encabezados de filas a la izquierda */
.grid-track-headers-rows {
  display: grid;
  width: 42px;
  gap: var(--ui-row-gap, 16px);
}

.track-header-row {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--primary);
  font-weight: 600;
  user-select: none;
}

.track-header-row input {
  width: 36px;
  border: none;
  background: transparent;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  text-align: center;
  padding: 1px;
}

.track-header-row input:focus {
  outline: 1px solid var(--primary);
  border-radius: 3px;
  background: var(--bg-input);
}

/* Escenario del Grid Container */
.grid-stage-container {
  flex: 1;
  min-width: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1rem;
  position: relative;
  min-height: 340px;
}

.grid-stage {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 320px;
  position: relative;
  transition: all 0.15s ease-out;
}

/* Líneas guía punteadas */
.show-guides .grid-stage {
  outline: 1px dashed var(--grid-line-color);
}

.show-guides .grid-item,
.show-guides .grid-cell-area {
  outline: 1px dashed var(--grid-line-color);
}

/* Elementos de cuadrícula en modo libre */
.grid-item {
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  position: relative;
  transition: transform 0.15s, box-shadow 0.15s, outline 0.15s;
  box-shadow: var(--shadow-sm);
  color: #ffffff;
  min-height: 60px;
}

.grid-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.05);
}

.grid-item.selected {
  outline: 3px solid #ffffff;
  box-shadow: 0 0 0 4px var(--primary), var(--shadow-md);
  z-index: 5;
}

.grid-item-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.grid-item-name {
  font-weight: 700;
  font-size: 0.875rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.grid-item-coords {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  opacity: 0.9;
  background: rgba(0, 0, 0, 0.25);
  padding: 2px 5px;
  border-radius: 4px;
}

.grid-item-foot {
  display: flex;
  justify-content: flex-end;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  opacity: 0.85;
}

/* Celdas interactivas en modo Áreas (grid-template-areas) */
.grid-cell-area {
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  font-size: 0.8125rem;
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  transition: all 0.15s;
  min-height: 60px;
  text-align: center;
}

.grid-cell-area:hover {
  filter: brightness(1.08);
  transform: scale(0.98);
}

.grid-cell-area.empty-cell {
  background: var(--bg-subtle) !important;
  color: var(--text-subtle) !important;
  border: 1px dashed var(--border-color);
  text-shadow: none;
}

.grid-cell-area.empty-cell:hover {
  background: var(--primary-light) !important;
  color: var(--primary) !important;
}

/* Barra inferior del lienzo */
.canvas-status-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
}

.status-metric {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.metric-val {
  color: var(--primary);
  font-weight: 700;
}

/* Aviso de validación de áreas */
.areas-validation-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: #fef2f2;
  color: #991b1b;
  border-top: 1px solid #fecaca;
  font-size: 0.8125rem;
}

[data-theme="dark"] .areas-validation-box {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-top-color: rgba(239, 68, 68, 0.3);
}

.validation-title {
  font-weight: 700;
  margin-right: 0.35rem;
}

/* Columna derecha: Paneles de configuración */
.sidebar-pane {
  background: var(--bg-card);
  overflow-y: auto;
  max-height: 650px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.config-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  overflow: hidden;
}

.config-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
}

.config-title {
  font-size: 0.875rem;
  margin: 0;
  color: var(--text-main);
}

.config-card-body {
  padding: 1rem;
}

/* Controles de pistas */
.tracks-group-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.group-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.stepper-ctrl {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px 4px;
}

.btn-step {
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.1s;
}

.btn-step:hover {
  background: var(--border-color);
}

.step-count {
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0 0.5rem;
  min-width: 20px;
  text-align: center;
}

.tracks-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.track-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
}

.track-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-subtle);
  width: 22px;
}

.track-input {
  flex: 1;
  min-width: 0;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.track-unit-select {
  width: 85px;
  padding: 0.35rem 0.35rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

/* Espaciados y sliders */
.gap-controls-grid {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.ctrl-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.ctrl-field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}

.field-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.val-badge {
  font-size: 0.75rem;
  background: var(--primary-light);
  color: var(--primary);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
}

.range-slider {
  width: 100%;
  accent-color: var(--primary);
  cursor: pointer;
  height: 6px;
  background: var(--border-color);
  border-radius: 4px;
}

/* Formularios y selects */
.custom-select,
.custom-input {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-input);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.8125rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.custom-select {
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  padding-right: 32px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.custom-select:focus,
.custom-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.alignment-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.span-pair-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.color-picker-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.color-input {
  width: 38px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: transparent;
}

.color-hex {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Paleta de áreas con nombre */
.areas-palette-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-area-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-page);
  color: var(--text-main);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-area-item:hover {
  border-color: var(--primary);
}

.btn-area-item.active {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.area-color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.section-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

/* ==========================================================================
   Presets y plantillas rápidas
   ========================================================================== */
.presets-section {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-subtle);
}

.presets-heading {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.presets-subtext {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0;
  margin-bottom: 1.25rem;
}

.presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.preset-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* Miniaturas visuales de los presets */
.preset-preview-holy-grail,
.preset-preview-dashboard,
.preset-preview-gallery,
.preset-preview-landing,
.preset-preview-autofit,
.preset-preview-ecom {
  display: grid;
  height: 90px;
  gap: 4px;
  padding: 6px;
  background: var(--bg-page);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  text-align: center;
}

.preview-box {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  color: #ffffff;
  padding: 2px;
}

.preset-preview-holy-grail {
  grid-template-columns: 1fr 2fr 1fr;
  grid-template-rows: 20px 1fr 20px;
}
.p-header { grid-column: 1 / -1; background: #3b82f6; }
.p-nav { background: #10b981; }
.p-main { background: #6366f1; }
.p-aside { background: #f59e0b; }
.p-footer { grid-column: 1 / -1; background: #64748b; }

.preset-preview-dashboard {
  grid-template-columns: 1fr 2fr 2fr;
  grid-template-rows: 20px 1fr 1fr;
}
.p-sidebar { grid-row: 1 / -1; background: #8b5cf6; }
.p-topbar { grid-column: 2 / -1; background: #3b82f6; }
.p-w1, .p-w2, .p-w3, .p-w4 { background: #0ea5e9; }

.preset-preview-gallery {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
}
.p-g1 { grid-column: 1 / 3; grid-row: 1 / 3; background: #ec4899; }
.p-g2, .p-g3, .p-g4, .p-g5 { background: #6366f1; }

.preset-preview-landing {
  grid-template-columns: 1.5fr 1fr;
  grid-template-rows: 1.5fr 1fr;
}
.p-hero-txt { background: #3b82f6; }
.p-hero-img { background: #10b981; }
.p-feat1, .p-feat2, .p-feat3 { background: #f59e0b; }

.preset-preview-autofit {
  grid-template-columns: repeat(3, 1fr);
}
.p-card { background: #06b6d4; }

.preset-preview-ecom {
  grid-template-columns: 1.2fr 1fr;
  grid-template-rows: 2fr 1fr;
}
.p-gallery { background: #f43f5e; }
.p-details { background: #8b5cf6; }
.p-reviews { grid-column: 1 / -1; background: #64748b; }

.preset-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.preset-name {
  font-size: 0.875rem;
  color: var(--text-main);
}

.preset-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   Sección de código y exportación
   ========================================================================== */
.code-export-section {
  background: var(--code-bg);
  border-top: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
}

.code-export-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.code-format-tabs {
  display: inline-flex;
  gap: 0.375rem;
}

.code-tab-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.7);
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s;
}

.code-tab-btn:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}

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

.btn-copy-code {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-copy-code:hover {
  background: rgba(255, 255, 255, 0.2);
}

.code-block-wrapper {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  max-height: 280px;
  overflow: auto;
}

.code-pre {
  margin: 0;
  padding: 1rem;
}

.code-content {
  color: var(--code-text);
  font-size: 0.8125rem;
  line-height: 1.6;
  white-space: pre;
}

/* ==========================================================================
   Botones generales
   ========================================================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.15s;
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem;
  font-weight: 500;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.15s;
}

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

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8125rem;
}

.btn-xs {
  padding: 0.2rem 0.45rem;
  font-size: 0.75rem;
}

.btn-primary-subtle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
}

.btn-danger-subtle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
}

.btn-danger-subtle:hover {
  background: #ef4444;
  color: #ffffff;
}

.btn-icon-subtle {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 4px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon-subtle.active {
  color: var(--primary);
  background: var(--primary-light);
  border-color: var(--primary-border);
}

.mt-3 {
  margin-top: 0.75rem;
}

/* ==========================================================================
   Preguntas frecuentes (FAQ Accordion)
   ========================================================================== */
.faq-section {
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
}

.faq-section-title {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.15s;
}

.faq-item[open] {
  border-color: var(--primary-border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-chevron {
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.faq-answer p {
  margin: 0;
}

/* ==========================================================================
   Modal accesible de avisos (reemplazo de alert)
   ========================================================================== */
.app-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(11, 15, 23, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
}

.app-modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  overflow: hidden;
  animation: modalPop 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.app-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-subtle);
}

.app-modal-title {
  margin: 0;
  font-size: 1rem;
  color: var(--text-main);
}

.btn-modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
}

.btn-modal-close:hover {
  color: var(--text-main);
}

.app-modal-body {
  padding: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.app-modal-footer {
  padding: 0.75rem 1.25rem;
  display: flex;
  justify-content: flex-end;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
}