/* ==========================================================================
   Calculadora de desgaste por turnos laborales - Fijate.com
   Estándar Canónico Midnight Slate (Outfit, Inter, JetBrains Mono)
   ========================================================================== */

:root {
  --bg-primary: #0b0f17;
  --bg-card: #111827;
  --bg-surface: #1e293b;
  --bg-surface-hover: #2d3748;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-focus: rgba(6, 182, 212, 0.4);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #06b6d4;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --accent-emerald: #10b981;
  --accent-purple: #a855f7;
  --accent-blue: #3b82f6;

  --badge-critico-bg: rgba(239, 68, 68, 0.15);
  --badge-critico-text: #fca5a5;
  --badge-critico-border: rgba(239, 68, 68, 0.4);

  --badge-alto-bg: rgba(245, 158, 11, 0.15);
  --badge-alto-text: #fcd34d;
  --badge-alto-border: rgba(245, 158, 11, 0.4);

  --badge-moderado-bg: rgba(6, 182, 212, 0.15);
  --badge-moderado-text: #67e8f9;
  --badge-moderado-border: rgba(6, 182, 212, 0.4);

  --badge-bajo-bg: rgba(16, 185, 129, 0.15);
  --badge-bajo-text: #6ee7b7;
  --badge-bajo-border: rgba(16, 185, 129, 0.4);

  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"],
body.light-theme {
  --bg-primary: #f8fafc;
  --bg-card: #ffffff;
  --bg-surface: #f1f5f9;
  --bg-surface-hover: #e2e8f0;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-focus: rgba(6, 182, 212, 0.6);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --badge-critico-bg: #fee2e2;
  --badge-critico-text: #991b1b;
  --badge-critico-border: #fca5a5;

  --badge-alto-bg: #fef3c7;
  --badge-alto-text: #92400e;
  --badge-alto-border: #fcd34d;

  --badge-moderado-bg: #cffafe;
  --badge-moderado-text: #155e75;
  --badge-moderado-border: #67e8f9;

  --badge-bajo-bg: #d1fae5;
  --badge-bajo-text: #065f46;
  --badge-bajo-border: #6ee7b7;

  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

/* Reset de contención */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
}

/* Layout principal */
.tool-layout {
  max-width: 1200px;
  width: 100%;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  flex: 1;
}

.tool-with-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 1536px) {
  .tool-with-sidebar {
    grid-template-columns: 1fr 300px;
    align-items: start;
  }
}

.tool-main-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Hero / Introducción */
.tool-hero-box {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(139, 92, 246, 0.05) 100%);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem 1.75rem;
  position: relative;
  overflow: hidden;
}

.tool-hero-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
}

.hero-badges-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  background-color: var(--bg-surface);
  color: var(--accent-cyan);
  border: 1px solid var(--border-color);
}

.hero-pill.iarc-pill {
  color: var(--accent-red);
  background-color: var(--badge-critico-bg);
  border-color: var(--badge-critico-border);
}

.hero-title {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 850px;
}

/* Workspace de 2 columnas blindado (Lección 243) */
.workspace-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  align-items: start;
}

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

/* Tarjetas */
.card-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 1.5rem;
  min-width: 0;
  max-width: 100%;
}

.card-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title-icon {
  color: var(--accent-cyan);
}

/* Presets rápidos */
.presets-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.btn-preset {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 32px;
}

.btn-preset:hover,
.btn-preset.active {
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

/* Formularios y controles táctiles >= 40px */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.label-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.form-select,
.form-input {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 44px;
  min-height: 44px;
  padding: 0 1rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: var(--font-base);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2306b6d4' 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 1rem center;
  background-size: 16px;
  padding-right: 2.75rem;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

.form-select option {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--border-color-focus);
}

/* Range sliders táctiles */
.range-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.range-slider {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-surface);
  border-radius: 9999px;
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.6);
  transition: transform 0.15s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.range-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.6);
}

/* Selector en cuadrícula compacta */
.grid-select-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.grid-select-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 0.4rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  min-height: 48px;
  transition: all 0.2s ease;
  text-align: center;
}

.grid-select-btn svg {
  margin-bottom: 0.25rem;
  color: var(--accent-cyan);
}

.grid-select-btn:hover,
.grid-select-btn.active {
  background-color: rgba(6, 182, 212, 0.12);
  color: var(--text-primary);
  border-color: var(--accent-cyan);
}

/* Checkbox estilizado */
.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  min-height: 40px;
}

.form-checkbox-input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* Botón de acción principal */
.btn-primary-action {
  width: 100%;
  height: 46px;
  min-height: 46px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #0284c7 100%);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.25);
  transition: all 0.2s ease;
}

.btn-primary-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(6, 182, 212, 0.35);
}

/* Tarjeta de estado de alerta global */
.alert-hero-card {
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.alert-hero-card.alerta-critica {
  background-color: var(--badge-critico-bg);
  border-color: var(--badge-critico-border);
}

.alert-hero-card.alerta-alta {
  background-color: var(--badge-alto-bg);
  border-color: var(--badge-alto-border);
}

.alert-hero-card.alerta-moderada {
  background-color: var(--badge-moderado-bg);
  border-color: var(--badge-moderado-border);
}

.alert-hero-card.alerta-baja {
  background-color: var(--badge-bajo-bg);
  border-color: var(--badge-bajo-border);
}

.alert-icon-box {
  width: 50px;
  height: 50px;
  min-width: 50px;
  border-radius: 12px;
  background-color: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: inherit;
}

.alerta-critica .alert-icon-box { color: var(--accent-red); }
.alerta-alta .alert-icon-box { color: var(--accent-amber); }
.alerta-moderada .alert-icon-box { color: var(--accent-cyan); }
.alerta-baja .alert-icon-box { color: var(--accent-emerald); }

.alert-info-box {
  flex: 1;
}

.alert-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.alert-title {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.alert-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Parrilla de métricas clave (4 métricas) */
.kpi-grid-4 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.kpi-stat-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
}

.kpi-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.kpi-stat-val {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--accent-cyan);
  line-height: 1.1;
  margin-bottom: 0.2rem;
}

.kpi-stat-val.val-red { color: var(--accent-red); }
.kpi-stat-val.val-amber { color: var(--accent-amber); }
.kpi-stat-val.val-purple { color: var(--accent-purple); }

.kpi-stat-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Pestañas de análisis en panel derecho */
.tab-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.tab-pill-btn {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  background-color: transparent;
  color: var(--text-secondary);
  border: none;
  cursor: pointer;
  min-height: 36px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

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

.tab-pill-btn.active {
  color: var(--accent-cyan);
  background-color: rgba(6, 182, 212, 0.12);
}

.tab-content-panel {
  display: none;
}

.tab-content-panel.active {
  display: block;
}

/* Gráficos Canvas 2D blindados (Lección 243) */
.canvas-wrapper {
  position: relative;
  width: 100%;
  max-width: 100%;
  height: 310px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.5rem;
  overflow: hidden;
  margin-bottom: 1rem;
}

.canvas-wrapper canvas {
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  display: block;
  box-sizing: border-box;
}

.canvas-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

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

/* Cuadrantes de órganos */
.organ-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.organ-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
}

.organ-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.organ-title {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.organ-score {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.organ-bar-bg {
  width: 100%;
  height: 6px;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 0.35rem;
}

.organ-bar-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.organ-desc {
  font-size: 0.76rem;
  color: var(--text-muted);
}

/* Tarjeta demoledora: fatiga de alcoholemia */
.alcoholemia-box {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(245, 158, 11, 0.06) 100%);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-top: 1rem;
}

.alcoholemia-icon {
  color: var(--accent-red);
  margin-top: 2px;
}

.alcoholemia-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.alcoholemia-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Visor del informe pericial del gerente */
.gerente-preview-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
}

.gerente-text-pre {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 380px;
  overflow-y: auto;
  padding: 0.75rem;
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-bottom: 1rem;
}

.gerente-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-gerente-action {
  flex: 1 1 0%;
  min-width: 140px;
  height: 42px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.btn-gerente-action:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--accent-cyan);
}

.btn-gerente-action.btn-copy-gerente {
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

/* Consejos prácticos de cronoprotección */
.protocol-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.protocol-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.protocol-icon-badge {
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: 10px;
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.protocol-body h4 {
  font-size: 0.92rem;
  margin-bottom: 0.25rem;
}

.protocol-body p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Guía didáctica y SEO (Lección 242: 2 columnas legibles, tablas al 100%) */
.seo-guide-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 2rem;
}

.seo-section-header {
  margin-bottom: 1.75rem;
}

.seo-title {
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.seo-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.seo-editorial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.seo-editorial-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
}

.seo-editorial-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.seo-editorial-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0.6rem;
}

.seo-editorial-card p:last-child {
  margin-bottom: 0;
}

/* Tabla médica al 100% de ancho */
.table-responsive {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.circadian-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.circadian-table th {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.circadian-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

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

/* FAQ Acordeón */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  min-height: 48px;
}

.faq-question svg {
  transition: transform 0.2s ease;
  color: var(--accent-cyan);
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 1.25rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.faq-item.open .faq-answer {
  display: block;
}

/* Modales canónicos HTML/CSS/JS (cero window.alert()) */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  padding: 1rem;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 620px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.75rem;
  position: relative;
}

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

.modal-title {
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-close-modal {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.modal-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-footer {
  margin-top: 1.5rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* Toast de notificación accesible */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--bg-card);
  border: 1px solid var(--accent-cyan);
  border-radius: 10px;
  padding: 0.75rem 1.25rem;
  color: var(--text-primary);
  font-size: 0.85rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

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

/* ==========================================================================
   Hoja de impresión A4 oficial pericial (.print-sheet) (Lección 238)
   ========================================================================== */
.print-sheet {
  display: none;
}

@media print {
  /* Ocultar elementos interactivos de la web */
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
    font-size: 11pt;
  }

  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .fijate-footer,
  .workspace-grid,
  .tool-hero-box,
  .seo-guide-section,
  .modal-overlay,
  .toast-notice {
    display: none !important;
  }

  .tool-layout {
    margin: 0 !important;
    padding: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
  }

  /* Activar hoja de impresión limpia */
  .print-sheet {
    display: block !important;
    width: 100% !important;
    max-width: 210mm !important;
    margin: 0 auto !important;
    padding: 15mm 20mm !important;
    background: #ffffff !important;
    color: #0f172a !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
    line-height: 1.4 !important;
  }

  .print-header {
    border-bottom: 2px solid #0f172a;
    padding-bottom: 12px;
    margin-bottom: 18px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }

  .print-header h1 {
    font-size: 16pt;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 4px;
  }

  .print-header p {
    font-size: 9pt;
    color: #475569;
  }

  .print-section {
    margin-bottom: 16px;
  }

  .print-section h2 {
    font-size: 12pt;
    font-weight: 700;
    border-bottom: 1px solid #cbd5e1;
    padding-bottom: 4px;
    margin-bottom: 8px;
    color: #0f172a;
  }

  .print-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 9.5pt;
    margin-bottom: 12px;
  }

  .print-table th,
  .print-table td {
    border: 1px solid #94a3b8;
    padding: 6px 10px;
    text-align: left;
  }

  .print-table th {
    background-color: #f1f5f9 !important;
    color: #0f172a;
    font-weight: 600;
  }

  .print-text-block {
    font-size: 9pt;
    line-height: 1.45;
    color: #334155;
    white-space: pre-wrap;
    margin-bottom: 16px;
  }

  .print-signatures {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
    page-break-inside: avoid;
  }

  .print-sig-box {
    border-top: 1px dashed #64748b;
    padding-top: 8px;
    font-size: 9pt;
    color: #475569;
    text-align: center;
  }
}