/**
 * Fijate Tools - Calculadora de devolución de gastos de hipoteca e intereses legales
 * Estilos canónicos responsivos y temas claro / oscuro (style.css)
 */

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

  /* Colores tema oscuro (por defecto) */
  --bg-page: #0b0f17;
  --card-bg: #111827;
  --card-bg-subtle: #1a2234;
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(99, 102, 241, 0.35);

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-subtle: #6b7280;

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.18);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.12);

  --input-bg: #182234;
  --input-border: #2d3748;
  --input-focus: #6366f1;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.35);
  --shadow-kpi: 0 10px 25px -5px rgba(99, 102, 241, 0.25);
}

[data-theme="light"] {
  --bg-page: #f8fafc;
  --card-bg: #ffffff;
  --card-bg-subtle: #f1f5f9;
  --card-border: #e2e8f0;
  --card-border-hover: rgba(99, 102, 241, 0.4);

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

  --accent-primary: #4f46e5;
  --accent-primary-hover: #4338ca;
  --accent-glow: rgba(79, 70, 229, 0.12);

  --success: #059669;
  --success-bg: #ecfdf5;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --info: #2563eb;
  --info-bg: #eff6ff;

  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --input-focus: #4f46e5;

  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.06);
  --shadow-kpi: 0 10px 25px -5px rgba(79, 70, 229, 0.15);
}

/* Reset y estructura base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  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,
.card-header-title {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

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

/* Layout y contenedor principal */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3.5rem;
  padding: 0 1rem;
  box-sizing: border-box;
  flex: 1 0 auto;
  width: 100%;
}

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

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

/* Hero informativo superior */
.tool-hero-box {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(59, 130, 246, 0.04) 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.hero-icon-box {
  background: var(--accent-primary);
  color: #ffffff;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.hero-text-area {
  flex: 1 1 auto;
}

.hero-headline {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-main);
}

.hero-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 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: var(--card-bg-subtle);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
}

.hero-pill.pill-success {
  color: var(--success);
  border-color: rgba(16, 185, 129, 0.25);
  background: var(--success-bg);
}

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

/* Navegación por pestañas */
.tabs-switcher {
  display: flex;
  background: var(--card-bg-subtle);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.75rem;
  gap: 0.35rem;
}

.tab-btn {
  flex: 1 1 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  min-height: 44px;
}

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

.tab-btn.active {
  background: var(--card-bg);
  color: var(--accent-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Paneles de pestañas */
.tab-panel {
  display: none;
}

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

/* Formularios e inputs */
.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.label-hint {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.input-with-symbol {
  position: relative;
  display: flex;
  align-items: center;
}

.input-symbol {
  position: absolute;
  right: 1rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  pointer-events: none;
}

.form-input {
  width: 100%;
  min-height: 44px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.6rem 2.25rem 0.6rem 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 44px;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.9rem;
  padding: 0.6rem 40px 0.6rem 0.9rem;
  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='%239ca3af' 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 14px center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

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

/* Checkbox toggle estilizado */
.checkbox-toggle-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--card-bg-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  margin-bottom: 1.25rem;
  cursor: pointer;
}

.checkbox-toggle-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--accent-primary);
}

.checkbox-label-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
}

/* Slider de estimador */
.slider-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.form-range {
  flex: 1 1 0;
  accent-color: var(--accent-primary);
  cursor: pointer;
  height: 6px;
}

.slider-val-box {
  width: 140px;
}

/* Botones de acción */
.btn-primary-action {
  width: 100%;
  min-height: 48px;
  background: var(--accent-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all 0.2s;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary-action:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary-action {
  min-height: 42px;
  background: var(--card-bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  transition: all 0.2s;
}

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

/* Bloque KPI de resultados */
.kpi-board {
  background: linear-gradient(145deg, var(--card-bg) 0%, var(--card-bg-subtle) 100%);
  border: 2px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-kpi);
  padding: 1.75rem;
  margin-bottom: 2rem;
}

.kpi-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.kpi-eyebrow {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  margin-bottom: 0.25rem;
}

.kpi-main-figure {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  font-family: var(--font-mono);
}

.kpi-days-notice {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

.kpi-subgrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--card-border);
}

.kpi-subcard {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}

.kpi-subcard-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.kpi-subcard-figure {
  font-size: 1.6rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.figure-interest {
  color: var(--success);
}

.kpi-interest-pill {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--success);
  background: var(--success-bg);
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
}

/* Tarjetas de desglose de conceptos */
.section-headline {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.concepts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.concept-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.2s;
}

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

.concept-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.concept-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.concept-law {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.15rem;
}

.concept-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  flex-shrink: 0;
}

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

.badge-half {
  background: var(--info-bg);
  color: var(--info);
}

.concept-amounts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  background: var(--card-bg-subtle);
  padding: 0.85rem;
  border-radius: var(--radius-sm);
}

.amount-cell {
  display: flex;
  flex-direction: column;
}

.cell-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.cell-val {
  font-size: 0.95rem;
  font-weight: 600;
}

.cell-principal {
  color: var(--text-main);
}

.cell-interest {
  color: var(--success);
}

.total-cell {
  grid-column: span 2;
  border-top: 1px solid var(--card-border);
  padding-top: 0.4rem;
  margin-top: 0.2rem;
}

.cell-total {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-primary);
}

.concept-bar-track {
  width: 100%;
  height: 5px;
  background: var(--card-bg-subtle);
  border-radius: 9999px;
  overflow: hidden;
}

.concept-bar-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

/* Tabla de liquidación tramo a tramo */
.collapsible-container {
  display: none;
  margin-top: 1rem;
}

.collapsible-container.active {
  display: block;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

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

.legal-table th {
  background: var(--card-bg-subtle);
  padding: 0.85rem 1rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 1px solid var(--card-border);
  white-space: nowrap;
}

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

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

.rate-badge {
  display: inline-block;
  background: var(--info-bg);
  color: var(--info);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
}

/* Módulo del generador de escrito al SAC */
.claim-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.75rem;
  margin-bottom: 2rem;
}

.sac-notice-box {
  background: var(--card-bg-subtle);
  border-left: 3px solid var(--accent-primary);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.preview-wrapper {
  display: none;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--card-border);
}

.preview-wrapper.active {
  display: block;
}

.preview-textarea {
  width: 100%;
  height: 380px;
  background: var(--card-bg-subtle);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  padding: 1rem;
  resize: vertical;
  margin-bottom: 1rem;
}

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

/* Modales accesibles sin window.alert() */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
}

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

.modal-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  animation: modalFadeIn 0.2s ease-out;
}

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

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

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.modal-body {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

/* Guía legal y SEO */
.seo-guide-section {
  margin-top: 3rem;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

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

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 1.15rem 1.25rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Media Queries Responsivas */
@media (max-width: 900px) {
  .tool-with-sidebar {
    flex-direction: column;
    gap: 1.5rem;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

  .kpi-main-figure {
    font-size: 2.2rem;
  }

  .kpi-subgrid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

  .claim-actions-row button {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .tool-layout {
    margin: 1rem auto 2rem;
    padding: 0 0.75rem;
  }

  .main-calc-card,
  .kpi-board,
  .claim-card {
    padding: 1.25rem;
  }

  .tabs-switcher {
    flex-direction: column;
  }

  .tool-hero-box {
    flex-direction: column;
    padding: 1.25rem;
  }
}