/* ==========================================================================
   Simulador de Certificados de Ahorro Energético (CAE) y Subvenciones de Reforma
   Fijate Tools - Estilos oficiales canónicos y responsivos
   ========================================================================== */

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

  /* Paleta Dark Mode (predeterminada) */
  --bg-app: #0b0f17;
  --bg-card: #131a26;
  --bg-card-subtle: #172131;
  --bg-input: #0e1522;
  --border-color: #233044;
  --border-focus: #3b82f6;

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

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.25);

  --accent-cae: #10b981;
  --accent-cae-bg: rgba(16, 185, 129, 0.12);
  --accent-cae-border: rgba(16, 185, 129, 0.35);

  --accent-irpf: #3b82f6;
  --accent-irpf-bg: rgba(59, 130, 246, 0.12);
  --accent-irpf-border: rgba(59, 130, 246, 0.35);

  --accent-total: #8b5cf6;
  --accent-total-bg: rgba(139, 92, 246, 0.15);
  --accent-total-border: rgba(139, 92, 246, 0.35);

  --accent-cost: #f59e0b;
  --accent-cost-bg: rgba(245, 158, 11, 0.12);
  --accent-cost-border: rgba(245, 158, 11, 0.35);

  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.35);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

[data-theme="light"] {
  --bg-app: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #f8fafc;
  --border-color: #cbd5e1;
  --border-focus: #2563eb;

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

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.15);

  --accent-cae: #059669;
  --accent-cae-bg: #ecfdf5;
  --accent-cae-border: #a7f3d0;

  --accent-irpf: #2563eb;
  --accent-irpf-bg: #eff6ff;
  --accent-irpf-border: #bfdbfe;

  --accent-total: #7c3aed;
  --accent-total-bg: #f5f3ff;
  --accent-total-border: #ddd6fe;

  --accent-cost: #d97706;
  --accent-cost-bg: #fffbeb;
  --accent-cost-border: #fde68a;

  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

/* Reset y base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-main);
  margin: 0;
  padding: 0;
  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,
.section-title,
.hero-title,
.kpi-title {
  font-family: var(--font-heading);
}

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

/* Layout */
.main-wrapper.tool-layout {
  max-width: 1280px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  width: 100%;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 1.75rem;
  align-items: start;
}

@media (max-width: 1200px) {
  .tool-with-sidebar {
    grid-template-columns: minmax(0, 1fr);
  }
}

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

/* Hero informativo */
.tool-hero-card {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(16, 185, 129, 0.08) 100%), var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.tool-hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.hero-tag.tag-miteco {
  background-color: var(--accent-cae-bg);
  border-color: var(--accent-cae-border);
  color: var(--accent-cae);
}

.hero-tag.tag-irpf {
  background-color: var(--accent-irpf-bg);
  border-color: var(--accent-irpf-border);
  color: var(--accent-irpf);
}

.tool-hero-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.tool-hero-desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 860px;
}

/* Pestañas de tipo de obra */
.tabs-reforma-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .tabs-reforma-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

.tab-reforma-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  min-height: 68px;
  justify-content: center;
}

.tab-reforma-btn svg {
  flex-shrink: 0;
}

.tab-reforma-btn:hover {
  border-color: var(--primary);
  color: var(--text-main);
  transform: translateY(-1px);
}

.tab-reforma-btn.active {
  background: var(--primary-glow);
  border-color: var(--primary);
  color: var(--text-main);
  box-shadow: 0 0 0 1px var(--primary);
}

/* Card principal y grid interactivo */
.card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.simulator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

@media (max-width: 992px) {
  .simulator-grid {
    grid-template-columns: 1fr;
  }
}

/* Columna de controles */
.sim-controls-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.section-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-box-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-box-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

/* Grupos de formularios */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

/* Desplegables <select> conforme a reglas canónicas */
select.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  height: 42px;
  min-height: 40px;
  padding: 0 40px 0 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-input);
  color: var(--text-main);
  font-size: 0.9rem;
  font-family: var(--font-main);
  appearance: none;
  background-image: url("data:image/svg2+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' 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;
  background-size: 16px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

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

/* Inputs en flexbox con unidades/sufijos */
.input-with-suffix {
  display: flex;
  align-items: center;
  height: 42px;
  min-height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-input);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input-with-suffix:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-with-suffix input[type="number"],
.input-with-suffix input[type="text"] {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  height: 100%;
  border: none;
  background: transparent;
  padding: 0 0.85rem;
  color: var(--text-main);
  font-size: 0.95rem;
  font-family: var(--font-mono);
  outline: none;
}

.input-suffix {
  padding: 0 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  height: 100%;
  display: flex;
  align-items: center;
  border-left: 1px solid var(--border-color);
  user-select: none;
  white-space: nowrap;
}

/* Radio buttons / opciones en grid compacto */
.radio-options-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.radio-card {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.75rem;
  background: var(--bg-input);
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.radio-card:hover {
  border-color: var(--primary);
}

.radio-card input[type="radio"] {
  margin-top: 0.2rem;
  accent-color: var(--primary);
}

.radio-card-content {
  flex: 1;
}

.radio-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  display: block;
}

.radio-card-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
  display: block;
  margin-top: 0.15rem;
  line-height: 1.3;
}

.radio-card.active {
  border-color: var(--primary);
  background: var(--primary-glow);
}

/* Columna de resultados y KPIs */
.sim-results-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.kpi-main-banner {
  background: linear-gradient(135deg, var(--bg-card-subtle) 0%, rgba(37, 99, 235, 0.12) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.kpi-grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 540px) {
  .kpi-grid-4 {
    grid-template-columns: 1fr;
  }
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border-color);
}

.kpi-card.kpi-cae::before {
  background: var(--accent-cae);
}

.kpi-card.kpi-irpf::before {
  background: var(--accent-irpf);
}

.kpi-card.kpi-total::before {
  background: var(--accent-total);
}

.kpi-card.kpi-cost::before {
  background: var(--accent-cost);
}

.kpi-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.kpi-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: none;
}

.kpi-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.kpi-badge.badge-cae {
  background: var(--accent-cae-bg);
  color: var(--accent-cae);
}

.kpi-badge.badge-irpf {
  background: var(--accent-irpf-bg);
  color: var(--accent-irpf);
}

.kpi-badge.badge-total {
  background: var(--accent-total-bg);
  color: var(--accent-total);
}

.kpi-badge.badge-cost {
  background: var(--accent-cost-bg);
  color: var(--accent-cost);
}

.kpi-val-row {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-top: 0.25rem;
}

.kpi-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.kpi-unit {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-muted);
}

.kpi-subtext {
  font-size: 0.76rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
  line-height: 1.35;
}

/* Barra visual de reparto económico */
.split-bar-section {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.split-bar-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 0.75rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.split-bar-container {
  height: 24px;
  border-radius: 9999px;
  background: var(--bg-input);
  display: flex;
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin-bottom: 0.75rem;
}

.split-segment {
  height: 100%;
  transition: width 0.3s ease;
  position: relative;
}

.split-segment.seg-cae {
  background: var(--accent-cae);
}

.split-segment.seg-irpf {
  background: var(--accent-irpf);
}

.split-segment.seg-cost {
  background: var(--border-color);
}

.split-legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

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

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-dot.dot-cae { background: var(--accent-cae); }
.legend-dot.dot-irpf { background: var(--accent-irpf); }
.legend-dot.dot-cost { background: var(--text-dim); }

/* Fila de métricas secundarias (Ahorro anual en facturas y amortización) */
.metrics-row-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (max-width: 540px) {
  .metrics-row-2 {
    grid-template-columns: 1fr;
  }
}

.metric-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.metric-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

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

.metric-pill-title {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
}

.metric-pill-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  display: block;
  line-height: 1.2;
}

/* Caja de desglose técnico y tramitación */
.tech-details-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.tech-details-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 0.85rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tech-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.tech-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.tech-list-item svg {
  color: var(--accent-cae);
  margin-top: 0.15rem;
  flex-shrink: 0;
}

/* Botones de acción inferiores */
.actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

@media (max-width: 540px) {
  .actions-row {
    grid-template-columns: 1fr;
  }
}

.btn-action {
  width: 100%;
  height: 44px;
  min-height: 40px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
}

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

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

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

/* Guía explicativa y preguntas frecuentes */
.edu-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  margin-top: 1rem;
  box-shadow: var(--shadow-card);
}

.edu-title {
  margin: 0 0 1rem 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 860px) {
  .edu-grid {
    grid-template-columns: 1fr;
  }
}

.edu-card {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

.edu-card-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.35rem;
  display: block;
}

.edu-card-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 0.5rem 0;
}

.edu-card-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Acordeón FAQ */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

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

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 0.96rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-icon {
  transition: transform 0.2s ease;
  flex-shrink: 0;
  color: var(--text-muted);
}

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

.faq-answer {
  display: none;
  padding: 0 1.25rem 1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

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

/* Modal accesible corporativo (sustituto estricto de window.alert) */
.custom-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.custom-modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.custom-modal-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transform: translateY(10px);
  transition: transform 0.2s ease;
}

.custom-modal-backdrop.active .custom-modal-dialog {
  transform: translateY(0);
}

.custom-modal-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

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

.custom-modal-footer {
  display: flex;
  justify-content: flex-end;
}

/* Imprimible / Print */
@media print {
  header.app-header,
  footer.fijate-footer,
  aside.tool-ad-sidebar,
  .tools-ad-banner-section,
  .actions-row,
  .tabs-reforma-container,
  .edu-section,
  .affiliate-section,
  .related-tools-section {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

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

  .tool-with-sidebar {
    display: block !important;
  }

  .card-main {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }
}