/* ==========================================================================
   Calculadora de embargos de nómina (art. 607 LEC) - Fijate Tools
   Estándar canónico: Inter, Outfit, JetBrains Mono, Dark/Light Themes
   ========================================================================== */

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

  /* Tema oscuro por defecto (Midnight Slate) */
  --bg-page: #0b0f17;
  --bg-card: #111827;
  --bg-card-subtle: #182234;
  --bg-input: #1e293b;
  --bg-input-focus: #243248;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-subtle: rgba(59, 130, 246, 0.12);

  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.12);
  --color-success-border: rgba(16, 185, 129, 0.3);

  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.12);
  --color-warning-border: rgba(245, 158, 11, 0.3);

  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.12);
  --color-danger-border: rgba(239, 68, 68, 0.3);

  --color-accent: #8b5cf6;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

[data-theme="light"],
body.light-theme {
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #f8fafc;
  --bg-input-focus: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #2563eb;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-subtle: rgba(37, 99, 235, 0.08);

  --color-success: #059669;
  --color-success-bg: rgba(5, 150, 105, 0.08);
  --color-success-border: rgba(5, 150, 105, 0.25);

  --color-warning: #d97706;
  --color-warning-bg: rgba(217, 119, 6, 0.08);
  --color-warning-border: rgba(217, 119, 6, 0.25);

  --color-danger: #dc2626;
  --color-danger-bg: rgba(220, 38, 38, 0.08);
  --color-danger-border: rgba(220, 38, 38, 0.25);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
}

/* Base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-main);
  margin: 0;
  padding: 0;
  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,
.section-title,
.hero-title,
.card-title {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  margin-top: 0;
  color: var(--text-main);
}

.mono,
.kpi-value,
.tbl-num,
code {
  font-family: var(--font-mono);
}

/* Layout */
.tool-layout {
  max-width: 1240px;
  width: 100%;
  margin: 1.5rem auto 3rem;
  padding: 0 1.25rem;
  flex: 1;
}

.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 principal */
.card-main {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

/* Cabecera interna de herramienta */
.tool-intro-header {
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
}

.intro-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 9999px;
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-tag.tag-legal {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}

.tool-intro-title {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.tool-intro-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 880px;
  margin: 0;
}

/* Fila de presets rápidos */
.presets-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.presets-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 0.25rem;
}

.btn-preset {
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-preset:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

/* Cuadrícula interactiva 2 columnas */
.calc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 1.75rem;
  align-items: start;
}

/* Columna izquierda: formulario */
.form-panel {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.panel-subheading {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.panel-subheading svg {
  color: var(--color-primary);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.label-hint {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-dim);
}

.input-suffix-wrapper {
  display: flex;
  align-items: center;
  position: relative;
  width: 100%;
  border-radius: var(--radius-sm);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input-suffix-wrapper:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-input-number {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  padding: 0.65rem 0.85rem;
  height: 44px;
  outline: none;
}

.input-suffix {
  padding-right: 0.85rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  user-select: none;
}

/* Segmented control tabs (14 pagas / 12 pagas) */
.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.25rem;
  background-color: var(--bg-input);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.segmented-option {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.75rem;
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-muted);
  background: transparent;
  border: none;
  transition: all 0.15s ease;
  min-height: 38px;
}

.segmented-option.active {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

/* Switch toggle */
.switch-label-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 0.9rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
}

.switch-label-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.switch-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

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

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

.switch-slider {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: 9999px;
  transition: background-color 0.2s;
  flex-shrink: 0;
}

[data-theme="light"] .switch-slider,
body.light-theme .switch-slider {
  background-color: #cbd5e1;
}

.switch-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

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

.switch-input:checked + .switch-slider::before {
  transform: translateX(20px);
}

/* Selectores standard */
.select-wrapper {
  position: relative;
  width: 100%;
}

.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  height: 42px;
  padding: 0.55rem 2.5rem 0.55rem 0.85rem;
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 500;
  background-color: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-select:focus {
  border-color: var(--border-focus);
}

.select-chevron {
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-muted);
}

/* Opciones de select con fondo claro/oscuro explícito */
.form-select option {
  background-color: var(--bg-card);
  color: var(--text-main);
}

/* Caja de cargas familiares */
.family-box {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.family-chips-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.35rem;
}

.btn-chip {
  padding: 0.45rem 0.25rem;
  font-size: 0.76rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.1rem;
}

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

.btn-chip-pct {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

/* Alerta de pensión de alimentos */
.alert-box-info {
  background-color: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.alert-box-info svg {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.alert-box-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.alert-box-text strong {
  color: var(--text-main);
}

.btn-text-link {
  background: none;
  border: none;
  color: var(--color-primary);
  text-decoration: underline;
  padding: 0;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

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

/* Columna derecha: resultados */
.results-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Tarjetas KPI resumen */
.kpi-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.kpi-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.kpi-card.kpi-protected::before {
  background-color: var(--color-success);
}

.kpi-card.kpi-embargo::before {
  background-color: var(--color-danger);
}

.kpi-card.kpi-net::before {
  background-color: var(--color-primary);
}

.kpi-card.kpi-rate::before {
  background-color: var(--color-warning);
}

.kpi-title {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-value {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-main);
}

.kpi-card.kpi-protected .kpi-value {
  color: var(--color-success);
}

.kpi-card.kpi-embargo .kpi-value {
  color: var(--color-danger);
}

.kpi-card.kpi-net .kpi-value {
  color: var(--color-primary);
}

.kpi-card.kpi-rate .kpi-value {
  color: var(--color-warning);
}

.kpi-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Barra horizontal de retención visual */
.retention-bar-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
}

.segmented-progress {
  display: flex;
  height: 18px;
  width: 100%;
  border-radius: 9999px;
  overflow: hidden;
  background-color: var(--bg-input);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.progress-seg {
  height: 100%;
  transition: width 0.3s ease;
}

.progress-seg.seg-protected {
  background-color: var(--color-success);
}

.progress-seg.seg-embargo {
  background-color: var(--color-danger);
}

.bar-legend {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

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

.legend-dot.dot-protected {
  background-color: var(--color-success);
}

.legend-dot.dot-embargo {
  background-color: var(--color-danger);
}

/* Tabla pormenorizada de tramos */
.table-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.table-header-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tramos-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
  text-align: left;
}

.tramos-table th {
  padding: 0.6rem 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.tramos-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  white-space: nowrap;
}

.tramos-table tbody tr {
  transition: background-color 0.15s ease;
}

.tramos-table tbody tr.tr-active {
  background-color: rgba(59, 130, 246, 0.05);
}

.tramos-table tbody tr.tr-inactive {
  opacity: 0.45;
}

.tramos-table tfoot td {
  padding: 0.75rem 0.75rem;
  font-weight: 700;
  border-top: 2px solid var(--border-color);
  border-bottom: none;
}

.tbl-tramo-name {
  display: flex;
  flex-direction: column;
}

.tramo-bold {
  font-weight: 600;
}

.tramo-range {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.badge-pct {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.78rem;
  background-color: var(--bg-input);
  color: var(--text-main);
}

.badge-pct.pct-zero {
  background-color: var(--color-success-bg);
  color: var(--color-success);
}

.badge-pct.pct-reduced {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge-pct.pct-active {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
}

.tramos-table td.col-num {
  text-align: right;
  font-family: var(--font-mono);
}

.tramos-table th.col-num {
  text-align: right;
}

/* Tarjeta de amortización de deuda */
.debt-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.debt-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-input);
  border-radius: var(--radius-sm);
}

/* Botonera de acciones */
.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-action-primary {
  flex: 1 1 0%;
  min-width: 180px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  padding: 0 1.25rem;
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: var(--shadow-sm);
}

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

.btn-action-secondary {
  flex: 1 1 0%;
  min-width: 180px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  padding: 0 1.25rem;
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  background-color: var(--bg-card-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-action-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Sección FAQ y doctrina legal */
.faq-section {
  margin-top: 2.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.faq-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.faq-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.faq-q {
  font-size: 0.96rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.faq-a {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Modales canónicos */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  min-width: 40px;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background-color 0.15s;
}

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

.modal-body {
  padding: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.modal-body h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
}

.modal-body p {
  margin-top: 0;
  margin-bottom: 0.85rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

/* Toast flotante de copiado */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--color-success-border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 10000;
  transition: transform 0.25s ease, opacity 0.25s ease;
  opacity: 0;
  pointer-events: none;
}

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

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

@media print {
  /* Ocultar interfaz no impresa */
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
    font-size: 11pt !important;
  }

  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .card-main,
  .faq-section,
  .fijate-footer,
  .toast-notice,
  .modal-overlay {
    display: none !important;
  }

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

  .print-sheet {
    display: block !important;
    max-width: 210mm;
    margin: 0 auto;
    padding: 15mm 20mm;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, sans-serif;
    color: #111827;
  }

  .print-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 2px solid #111827;
    padding-bottom: 12px;
    margin-bottom: 18px;
  }

  .print-header-brand {
    font-size: 18pt;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
  }

  .print-header-subtitle {
    font-size: 9pt;
    color: #4b5563;
  }

  .print-header-meta {
    text-align: right;
    font-size: 8.5pt;
    color: #4b5563;
    font-family: 'JetBrains Mono', monospace;
  }

  .print-doc-title {
    font-size: 14pt;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
  }

  .print-summary-box {
    border: 1px solid #d1d5db;
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 16px;
    background-color: #f9fafb;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .print-summary-item {
    font-size: 8.5pt;
  }

  .print-summary-item strong {
    display: block;
    font-size: 11pt;
    font-family: 'JetBrains Mono', monospace;
    color: #111827;
  }

  .print-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 8.5pt;
    margin-bottom: 18px;
  }

  .print-table th,
  .print-table td {
    border: 1px solid #d1d5db;
    padding: 6px 8px;
    text-align: left;
  }

  .print-table th {
    background-color: #f3f4f6;
    font-weight: 700;
  }

  .print-table td.col-num {
    text-align: right;
    font-family: 'JetBrains Mono', monospace;
  }

  .print-legal-note {
    font-size: 7.5pt;
    color: #6b7280;
    border-top: 1px solid #e5e7eb;
    padding-top: 10px;
    margin-top: 20px;
    line-height: 1.4;
  }

  .print-signature-row {
    margin-top: 30px;
    display: flex;
    justify-content: space-between;
  }

  .print-sign-box {
    width: 45%;
    border-top: 1px dashed #9ca3af;
    padding-top: 6px;
    font-size: 8pt;
    text-align: center;
    color: #4b5563;
  }
}

/* Responsividad para móviles y tablets */
@media (max-width: 960px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .kpi-cards-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .tool-layout {
    margin-top: 1rem;
    padding: 0 0.75rem;
  }

  .card-main {
    padding: 1.15rem;
  }

  .tool-intro-title {
    font-size: 1.35rem;
  }

  .family-chips-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kpi-cards-grid {
    grid-template-columns: 1fr;
  }

  .actions-row {
    flex-direction: column;
  }

  .btn-action-primary,
  .btn-action-secondary {
    width: 100%;
    min-width: 0;
  }

  .btn-preset {
    flex: 1 1 auto;
    text-align: center;
  }
}