/**
 * Fijate Tools - Calculadora de Huella Hídrica
 * Estilos canónicos, variables corporativas, tema claro/oscuro y componentes táctiles responsivos.
 */

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

  /* Paleta cromática en tema claro */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #0284c7;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;

  /* Colores temáticos Water Footprint Network */
  --water-blue: #0284c7;
  --water-blue-bg: #e0f2fe;
  --water-blue-dark: #0369a1;

  --water-green: #10b981;
  --water-green-bg: #d1fae5;
  --water-green-dark: #047857;

  --water-grey: #64748b;
  --water-grey-bg: #f1f5f9;
  --water-grey-dark: #334155;

  --accent-color: #0284c7;
  --accent-hover: #0369a1;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;

  --card-radius: 14px;
  --btn-radius: 10px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

/* Tema oscuro */
[data-theme="dark"] {
  --bg-page: #0b0f17;
  --bg-card: #131b26;
  --bg-card-subtle: #1a2434;
  --bg-input: #1a2434;
  --border-color: #233144;
  --border-focus: #38bdf8;

  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-light: #94a3b8;

  --water-blue: #38bdf8;
  --water-blue-bg: rgba(56, 189, 248, 0.15);
  --water-blue-dark: #0284c7;

  --water-green: #34d399;
  --water-green-bg: rgba(52, 211, 153, 0.15);
  --water-green-dark: #10b981;

  --water-grey: #94a3b8;
  --water-grey-bg: rgba(148, 163, 184, 0.15);
  --water-grey-dark: #64748b;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.6);
}

/* Estructura básica obligatoria */
*, *::before, *::after {
  box-sizing: border-box;
}

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

h1, h2, h3, h4, h5, h6,
.brand-title,
.wf-hero-title,
.pane-title,
.results-title,
.faq-section-title {
  font-family: var(--font-heading);
  color: var(--text-main);
  margin: 0;
}

.text-mono,
.mono,
.field-badge,
.kpi-number,
.kpi-subtext,
.stepper-val,
.tricolor-vol {
  font-family: var(--font-mono);
}

/* Layout institucional y anuncios */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3.5rem;
  padding: 0 1rem;
  box-sizing: border-box;
  flex: 1 0 auto;
}

.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%;
}

/* Tarjetas canónicas */
.card-main,
.wf-hero-card,
.wf-results-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
  box-sizing: border-box;
}

/* Hero explicativo */
.wf-hero-card {
  padding: 1.75rem 2rem;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-subtle) 100%);
  border-left: 4px solid var(--water-blue);
}

.wf-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--water-blue-bg);
  color: var(--water-blue-dark);
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

[data-theme="dark"] .wf-hero-badge {
  color: var(--water-blue);
}

.wf-hero-title {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.wf-hero-lead {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}

/* Selectores de presets */
.wf-presets-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
}

.wf-presets-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.wf-presets-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.btn-preset {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  min-height: 44px;
  padding: 0 1rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-preset:hover {
  border-color: var(--water-blue);
  background-color: var(--water-blue-bg);
  transform: translateY(-1px);
}

.btn-preset.active {
  border-color: var(--water-blue);
  background-color: var(--water-blue-bg);
  color: var(--water-blue-dark);
  box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2);
}

[data-theme="dark"] .btn-preset.active {
  color: var(--water-blue);
}

/* Pestañas de navegación */
.wf-tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-card-subtle);
  border-top-left-radius: var(--card-radius);
  border-top-right-radius: var(--card-radius);
  overflow-x: auto;
  scrollbar-width: thin;
}

.wf-tab-btn {
  flex: 1 1 0%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  height: 52px;
  min-height: 48px;
  padding: 0 1rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-light);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.wf-tab-btn:hover {
  color: var(--text-main);
  background-color: rgba(2, 132, 199, 0.05);
}

.wf-tab-btn.active {
  color: var(--water-blue);
  border-bottom-color: var(--water-blue);
  background-color: var(--bg-card);
}

/* Paneles del formulario */
.wf-form {
  padding: 1.75rem;
}

.wf-tab-pane {
  display: none;
}

.wf-tab-pane.active {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.pane-header {
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.pane-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.pane-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

/* Cuadrículas de campos */
.wf-grid-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.field-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.2s ease;
}

.field-card:hover {
  border-color: rgba(2, 132, 199, 0.4);
}

.field-card.highlight-card {
  border-left: 3px solid var(--water-blue);
}

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

.field-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.field-badge {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--water-blue);
  background-color: var(--water-blue-bg);
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
}

/* Controles de rango (Sliders) */
.wf-range {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--border-color);
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
}

.wf-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--water-blue);
  border: 3px solid #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: transform 0.15s ease;
}

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

.range-marks {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: -0.25rem;
}

/* Subcampos y flexbox */
.field-subrow {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
}

.subfield {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.subfield.full-width {
  flex: 1 1 100%;
  width: 100%;
}

.subfield-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.grid-2-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

/* Inputs numéricos y desplegables */
.input-unit-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.wf-input-num {
  width: 100%;
  height: 42px;
  min-height: 40px;
  padding: 0 2.2rem 0 0.75rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.wf-input-num:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.input-unit {
  position: absolute;
  right: 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-light);
  pointer-events: none;
}

.wf-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 42px;
  min-height: 40px;
  padding: 0 2.2rem 0 0.75rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 500;
  outline: none;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
  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='%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 0.75rem center;
}

.wf-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.field-hint {
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.4;
}

/* Tarjetas de alimentos y agua virtual */
.wf-food-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.food-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.food-card:hover {
  border-color: rgba(2, 132, 199, 0.4);
}

.food-card.highlight-card {
  border-left: 3px solid var(--water-blue);
}

.food-card-top {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.food-icon-box {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background-color: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.food-info {
  flex: 1;
  min-width: 0;
}

.food-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.food-metric-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--water-blue);
}

.food-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

.food-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Controles Stepper (+ / -) */
.stepper-wrapper {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.btn-stepper {
  width: 36px;
  height: 38px;
  min-height: 38px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease;
}

.btn-stepper:hover {
  background-color: var(--water-blue-bg);
  color: var(--water-blue-dark);
}

.stepper-val {
  width: 46px !important;
  height: 38px !important;
  min-height: 38px !important;
  border: none !important;
  border-radius: 0 !important;
  padding: 0 !important;
  text-align: center;
  background: transparent !important;
  box-shadow: none !important;
}

.food-subtext {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.35;
}

/* SECCIÓN DE RESULTADOS */
.wf-results-section {
  padding: 2rem;
  background-color: var(--bg-card);
}

.results-main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.results-pretitle {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--water-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.results-title {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.2;
}

.results-actions {
  display: flex;
  gap: 0.6rem;
}

.btn-action-sm {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  height: 40px;
  min-height: 40px;
  padding: 0 0.95rem;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-action-sm:hover {
  border-color: var(--water-blue);
  color: var(--water-blue);
  background-color: var(--water-blue-bg);
}

/* KPIs principales */
.wf-kpis-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.kpi-card.total-kpi {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.08) 0%, rgba(2, 132, 199, 0.02) 100%);
  border: 2px solid var(--water-blue);
}

.kpi-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.kpi-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-light);
}

.kpi-badge-live {
  font-size: 0.75rem;
  font-weight: 700;
  background-color: #10b981;
  color: #ffffff;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.kpi-number {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.total-kpi .kpi-number {
  color: var(--water-blue);
}

.kpi-unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
}

.kpi-subtext {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Barra de split directo vs virtual */
.kpi-split-bars {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.split-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.split-name {
  color: var(--text-light);
}

.split-val.highlight-split {
  color: var(--water-blue);
}

.progress-split-bar {
  display: flex;
  height: 10px;
  width: 100%;
  border-radius: 5px;
  overflow: hidden;
  background-color: var(--border-color);
}

.progress-segment.direct-bar {
  background-color: #06b6d4;
  transition: width 0.3s ease;
}

.progress-segment.virtual-bar {
  background-color: var(--water-blue);
  transition: width 0.3s ease;
}

/* Benchmark gauge */
.kpi-benchmark-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-light);
  background-color: var(--bg-card);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.benchmark-gauge-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.gauge-status-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
}

.gauge-bar-track {
  position: relative;
  height: 12px;
  background-color: var(--border-color);
  border-radius: 6px;
  overflow: visible;
  margin: 0.5rem 0;
}

.gauge-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, #10b981 0%, #0284c7 50%, #ef4444 100%);
  transition: width 0.35s ease;
}

.gauge-marker.spain-marker {
  position: absolute;
  top: -24px;
  transform: translateX(-50%);
  white-space: nowrap;
}

.marker-flag {
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--text-main);
  color: var(--bg-page);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
}

.gauge-scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-light);
}

/* Tarjeta tricolor WFN */
.wf-tricolor-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.tricolor-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.tricolor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

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

.tricolor-item.blue-water { border-top: 4px solid var(--water-blue); }
.tricolor-item.green-water { border-top: 4px solid var(--water-green); }
.tricolor-item.grey-water { border-top: 4px solid var(--water-grey); }

.tricolor-icon {
  font-size: 1.6rem;
  line-height: 1;
}

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

.tricolor-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.tricolor-definition {
  font-size: 0.78rem;
  color: var(--text-light);
  line-height: 1.3;
}

.tricolor-vol {
  font-size: 1.15rem;
  font-weight: 800;
  margin-top: 0.25rem;
  color: var(--text-main);
}

.tricolor-pct {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  margin-left: 0.25rem;
}

.tricolor-stacked-bar {
  display: flex;
  height: 14px;
  width: 100%;
  border-radius: 7px;
  overflow: hidden;
  background-color: var(--border-color);
}

.stacked-seg.seg-blue { background-color: var(--water-blue); transition: width 0.3s ease; }
.stacked-seg.seg-green { background-color: var(--water-green); transition: width 0.3s ease; }
.stacked-seg.seg-grey { background-color: var(--water-grey); transition: width 0.3s ease; }

/* Equivalencias visuales */
.wf-equivalences-card {
  margin-bottom: 2rem;
}

.equivalences-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.equivalences-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.equiv-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.25rem 1rem;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  transition: transform 0.2s ease;
}

.equiv-item:hover {
  transform: translateY(-2px);
  border-color: var(--water-blue);
}

.equiv-icon-box {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.equiv-number {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--water-blue);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.equiv-desc {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 0.35rem;
}

.equiv-note {
  font-size: 0.72rem;
  color: var(--text-light);
}

/* Gráfico de barras por sector */
.wf-breakdown-card {
  margin-bottom: 2rem;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 1.5rem;
}

.breakdown-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.breakdown-bars-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.breakdown-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.breakdown-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.breakdown-category {
  font-weight: 600;
  color: var(--text-main);
}

.breakdown-val {
  font-weight: 700;
  color: var(--water-blue);
}

.breakdown-track {
  height: 8px;
  background-color: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
}

.breakdown-bar-fill {
  height: 100%;
  border-radius: 4px;
  background-color: var(--water-blue);
  transition: width 0.35s ease;
}

/* Simulador de palancas de ahorro ("¿Qué pasaría si...?") */
.wf-savings-simulator-card {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(16, 185, 129, 0.02) 100%);
  border: 2px solid var(--water-green);
  border-radius: var(--card-radius);
  padding: 1.75rem;
  margin-bottom: 1rem;
}

.simulator-header {
  margin-bottom: 1.25rem;
}

.sim-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--water-green-dark);
  background-color: var(--water-green-bg);
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  margin-bottom: 0.4rem;
}

[data-theme="dark"] .sim-badge {
  color: var(--water-green);
}

.sim-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.sim-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.levers-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.lever-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lever-card:hover {
  border-color: var(--water-green);
  transform: translateX(2px);
}

.lever-check {
  width: 22px;
  height: 22px;
  min-width: 22px;
  accent-color: var(--water-green);
  cursor: pointer;
}

.lever-content {
  flex: 1;
  min-width: 0;
}

.lever-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.lever-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.lever-saving {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--water-green-dark);
}

[data-theme="dark"] .lever-saving {
  color: var(--water-green);
}

.lever-sub {
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.3;
}

.savings-summary-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-card);
  border: 1px solid var(--water-green);
  border-radius: var(--btn-radius);
  padding: 1.25rem 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.savings-summary-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.savings-summary-num {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--water-green-dark);
  margin-left: 0.5rem;
}

[data-theme="dark"] .savings-summary-num {
  color: var(--water-green);
}

.savings-summary-right {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Acordeón de FAQs */
.wf-faq-section {
  padding: 2rem;
}

.faq-header {
  margin-bottom: 1.5rem;
}

.faq-section-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.faq-section-lead {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

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

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--btn-radius);
  background-color: var(--bg-card-subtle);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(2, 132, 199, 0.4);
}

.faq-item[open] {
  border-color: var(--water-blue);
  background-color: var(--bg-card);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.15rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
}

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

.faq-chevron {
  transition: transform 0.25s ease;
  color: var(--text-light);
}

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

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-answer p {
  margin: 0;
}

/* Modal accesible de confirmación */
.wf-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 999999;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.wf-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.wf-modal-card {
  width: 100%;
  max-width: 500px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(12px) scale(0.98);
  transition: transform 0.25s ease;
}

.wf-modal-backdrop.open .wf-modal-card {
  transform: translateY(0) scale(1);
}

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

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

.btn-modal-close {
  background: transparent;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--text-light);
  cursor: pointer;
  padding: 0 0.5rem;
}

.wf-modal-body {
  padding: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

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

.btn-modal-action {
  height: 42px;
  min-height: 40px;
  padding: 0 1.5rem;
  background-color: var(--water-blue);
  color: #ffffff;
  border: none;
  border-radius: var(--btn-radius);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn-modal-action:hover {
  background-color: var(--water-blue-dark);
}

/* ADAPTACIÓN RESPONSIVA Y REGLAS MÓVILES */
@media (max-width: 1024px) {
  .wf-kpis-grid {
    grid-template-columns: 1fr;
  }

  .wf-grid-fields,
  .wf-food-grid {
    grid-template-columns: 1fr;
  }

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

  .equivalences-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .tool-layout {
    margin: 1rem auto 2rem;
    padding: 0 0.75rem;
  }

  .wf-hero-card {
    padding: 1.25rem 1rem;
  }

  .wf-hero-title {
    font-size: 1.5rem;
  }

  .wf-presets-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .wf-form {
    padding: 1.25rem 0.85rem;
  }

  .wf-results-section {
    padding: 1.25rem 1rem;
  }

  .results-main-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .results-actions {
    width: 100%;
  }

  .btn-action-sm {
    flex: 1;
    justify-content: center;
  }

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

  .savings-summary-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .wf-presets-grid {
    grid-template-columns: 1fr;
  }

  .grid-2-cols {
    grid-template-columns: 1fr;
  }

  .field-subrow {
    flex-direction: column;
    align-items: stretch;
  }

  .subfield {
    width: 100%;
  }

  .kpi-number {
    font-size: 1.9rem;
  }
}