/* ==========================================================================
   Fijate Tools - Calculadora de Coste por Uso y Amortización (Cost Per Wear)
   Estilos corporativos canónicos, diseño Midnight Slate, ticket térmico y móvil.
   ========================================================================== */

: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-app: #0b0f17;
  --bg-card: #131b2e;
  --bg-card-subtle: #1e293b;
  --bg-input: #0f172a;
  --border-color: #27354f;
  --border-focus: #38bdf8;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --primary: #38bdf8;
  --primary-hover: #0ea5e9;
  --primary-bg: rgba(56, 189, 248, 0.12);
  
  --emerald: #10b981;
  --emerald-bg: rgba(16, 185, 129, 0.14);
  --amber: #f59e0b;
  --amber-bg: rgba(245, 158, 11, 0.14);
  --rose: #f43f5e;
  --rose-bg: rgba(244, 63, 94, 0.14);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 14px -2px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 28px -4px rgba(0, 0, 0, 0.45);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

[data-theme="light"] {
  --bg-app: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #ffffff;
  --border-color: #cbd5e1;
  --border-focus: #0284c7;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-bg: rgba(2, 132, 199, 0.08);

  --emerald: #059669;
  --emerald-bg: rgba(5, 150, 105, 0.1);
  --amber: #d97706;
  --amber-bg: rgba(217, 119, 6, 0.1);
  --rose: #e11d48;
  --rose-bg: rgba(225, 29, 72, 0.1);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 24px -4px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-main);
  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,
.form-title,
.verdict-title,
.section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.015em;
}

.text-mono,
.ticket-mono,
.price-val {
  font-family: var(--font-mono);
}

.text-emerald {
  color: var(--emerald) !important;
}

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

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

/* Barra de Presets de un clic */
.presets-container {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.presets-header {
  margin-bottom: 0.6rem;
}

.presets-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.presets-scroll {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: thin;
}

.preset-chip {
  flex: 0 0 auto;
  background: var(--bg-card-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.preset-chip:hover {
  background: var(--primary-bg);
  border-color: var(--primary);
  color: var(--primary);
}

.preset-chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #0f172a;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(56, 189, 248, 0.35);
}

/* Cuadrícula de 2 columnas */
.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

/* Badges de sección */
.section-badge {
  display: inline-block;
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.form-title {
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

/* Formularios y controles */
.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-hint {
  display: block;
  font-size: 0.775rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  line-height: 1.4;
}

.form-control {
  width: 100%;
  max-width: 100%;
  min-height: 44px;
  padding: 0.65rem 0.9rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

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

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

/* Wrapper para inputs con sufijo */
.input-suffix-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.input-suffix-wrapper .form-control {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  padding-right: 2.75rem;
}

.input-suffix {
  position: absolute;
  right: 0.9rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  pointer-events: none;
}

/* Grupos combinados número + desplegable */
.freq-input-group,
.maintenance-input-group {
  display: flex;
  gap: 0.65rem;
  width: 100%;
}

.flex-freq-num {
  flex: 0 0 95px;
}

.flex-freq-select {
  flex: 1 1 0%;
  min-width: 0;
}

/* Desplegable select con estilo canónico */
.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='%2394a3b8' stroke-width='2.2' 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 0.85rem center;
  background-size: 16px 16px;
  padding-right: 2.5rem;
  cursor: pointer;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

/* Slider de temporada */
.season-group {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
}

.season-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.season-badge {
  font-size: 0.775rem;
  font-weight: 700;
  background: var(--primary-bg);
  color: var(--primary);
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
}

.form-range {
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  outline: none;
  accent-color: var(--primary);
  cursor: pointer;
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.35rem;
}

/* Caja de reventa en Wallapop */
.resale-card-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.95rem 1rem;
}

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

.resale-percent-badge {
  font-size: 0.775rem;
  font-weight: 700;
  background: var(--emerald-bg);
  color: var(--emerald);
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
}

.quick-resale-buttons {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
}

.btn-resale-preset {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
}

.btn-resale-preset:hover {
  border-color: var(--primary);
  color: var(--text-main);
}

.btn-resale-preset.active {
  background: var(--emerald-bg);
  border-color: var(--emerald);
  color: var(--emerald);
  font-weight: 700;
}

/* Switch de comparativa */
.compare-toggle-card {
  background: var(--bg-card-subtle);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex: 0 0 44px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--border-color);
  transition: .3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
}

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

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

.toggle-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

.compare-fields {
  display: block;
}

/* Columna derecha: Veredicto y Cockpit */
.calc-results-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Banner de Veredicto */
.verdict-banner {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-left: 5px solid var(--emerald);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: border-color 0.25s ease;
}

.verdict-banner.verdict-success {
  border-left-color: var(--emerald);
  background: linear-gradient(135deg, var(--bg-card-subtle) 0%, rgba(16, 185, 129, 0.08) 100%);
}

.verdict-banner.verdict-info {
  border-left-color: var(--primary);
  background: linear-gradient(135deg, var(--bg-card-subtle) 0%, rgba(56, 189, 248, 0.08) 100%);
}

.verdict-banner.verdict-warning {
  border-left-color: var(--amber);
  background: linear-gradient(135deg, var(--bg-card-subtle) 0%, rgba(245, 158, 11, 0.08) 100%);
}

.verdict-banner.verdict-danger {
  border-left-color: var(--rose);
  background: linear-gradient(135deg, var(--bg-card-subtle) 0%, rgba(244, 63, 94, 0.08) 100%);
}

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

.verdict-stamp-badge {
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: var(--emerald-bg);
  color: var(--emerald);
}

.verdict-success .verdict-stamp-badge {
  background: var(--emerald-bg);
  color: var(--emerald);
}

.verdict-info .verdict-stamp-badge {
  background: var(--primary-bg);
  color: var(--primary);
}

.verdict-warning .verdict-stamp-badge {
  background: var(--amber-bg);
  color: var(--amber);
}

.verdict-danger .verdict-stamp-badge {
  background: var(--rose-bg);
  color: var(--rose);
}

.verdict-score-pill {
  display: flex;
  align-items: baseline;
  gap: 0.15rem;
  font-family: var(--font-mono);
}

.score-num {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.score-max {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.verdict-title {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.verdict-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.85rem;
}

.verdict-equivalence-box {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 500;
}

[data-theme="light"] .verdict-equivalence-box {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border-color);
}

.verdict-equivalence-box svg {
  flex: 0 0 20px;
  color: var(--primary);
}

/* Cuadrícula de KPIs */
.kpis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

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

.highlight-kpi {
  background: linear-gradient(135deg, var(--bg-card-subtle) 0%, rgba(56, 189, 248, 0.12) 100%);
  border-color: rgba(56, 189, 248, 0.35);
}

.kpi-label {
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.kpi-value-box {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  margin-bottom: 0.25rem;
}

.kpi-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.highlight-kpi .kpi-value {
  color: var(--primary);
  font-size: 1.85rem;
}

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

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

/* Tarjeta de comparativa */
.comparison-result-card {
  display: flex;
  gap: 0.85rem;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  align-items: flex-start;
}

.comp-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--emerald-bg);
  color: var(--emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 36px;
}

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

.comp-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.comp-badge-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background: var(--emerald-bg);
  color: var(--emerald);
}

.comp-desc {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   El Ticket Térmico Digital Viral
   ========================================================================== */
.thermal-ticket-wrapper {
  margin-top: 0.5rem;
}

.ticket-header-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.65rem;
}

.thermal-ticket-card {
  position: relative;
  background-color: #faf9f5;
  color: #0f172a;
  border-radius: 4px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
  overflow: hidden;
  margin-bottom: 1rem;
}

/* Borde dentado superior e inferior */
.ticket-sawtooth-top,
.ticket-sawtooth-bottom {
  height: 8px;
  width: 100%;
  background-size: 16px 8px;
  background-repeat: repeat-x;
}

.ticket-sawtooth-top {
  background-image: radial-gradient(circle at 8px -3px, transparent 8px, #faf9f5 9px);
}

.ticket-sawtooth-bottom {
  background-image: radial-gradient(circle at 8px 11px, transparent 8px, #faf9f5 9px);
}

.ticket-inner-content {
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.ticket-brand {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: 0.04em;
}

.ticket-meta-line {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: #64748b;
  margin-top: 0.2rem;
}

.ticket-divider {
  width: 100%;
  border-top: 1px dashed #cbd5e1;
  margin: 0.85rem 0;
}

.ticket-dotted-divider {
  width: 100%;
  border-top: 1px dotted #94a3b8;
  margin: 0.4rem 0;
}

.ticket-item-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: #0f172a;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.ticket-item-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #475569;
  margin-top: 0.15rem;
}

.ticket-table-rows {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
}

.ticket-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.785rem;
  color: #334155;
}

.ticket-bold {
  font-weight: 700;
  color: #0f172a;
}

.ticket-total-row {
  font-size: 0.875rem;
  font-weight: 800;
  color: #0f172a;
  padding-top: 0.2rem;
}

/* Caja de destaque de Coste por Puesta en el ticket */
.ticket-highlight-box {
  width: 100%;
  background: #0f172a;
  color: #ffffff;
  border-radius: 6px;
  padding: 0.85rem 0.5rem;
  margin-bottom: 0.65rem;
}

.ticket-highlight-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #94a3b8;
  text-transform: uppercase;
}

.ticket-highlight-price {
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1.1;
  margin-top: 0.2rem;
}

.ticket-phrase {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 0.8rem;
  color: #475569;
  margin-bottom: 0.85rem;
}

/* Sello de veredicto estampado */
.ticket-stamp-mark {
  margin: 0.4rem 0 0.85rem;
  transform: rotate(-4deg);
}

.stamp-border {
  border: 2px dashed #059669;
  padding: 0.35rem 1rem;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #059669;
}

.stamp-stars {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
}

.stamp-text {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.stamp-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
}

.stamp-info .stamp-border {
  border-color: #0284c7;
  color: #0284c7;
}

.stamp-warning .stamp-border {
  border-color: #d97706;
  color: #d97706;
}

.stamp-danger .stamp-border {
  border-color: #dc2626;
  color: #dc2626;
}

.ticket-barcode-box {
  margin-bottom: 0.5rem;
  color: #1e293b;
}

.ticket-footer-url {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #94a3b8;
  word-break: break-all;
}

/* Fila de botones de acción viral */
.ticket-actions-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
}

.btn-action-ticket {
  width: 100%;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary-ticket {
  background: var(--primary);
  color: #0f172a;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

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

.btn-whatsapp-ticket {
  background: #25d366;
  color: #ffffff;
  font-weight: 700;
}

.btn-whatsapp-ticket:hover {
  background: #20bd5a;
  transform: translateY(-1px);
}

.btn-link-ticket {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

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

/* ==========================================================================
   Guía educativa y SEO
   ========================================================================== */
.guide-section {
  margin: 3rem 0;
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.guide-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
}

.guide-card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.guide-card-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.guide-card-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Acordeón FAQ */
.faq-accordion-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.faq-section-title {
  font-size: 1.3rem;
  margin-bottom: 1.25rem;
  text-align: center;
}

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

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

.faq-item[open] {
  border-color: var(--primary);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
}

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

.faq-icon {
  flex: 0 0 18px;
  color: var(--text-dim);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

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

/* ==========================================================================
   Modal corporativo accesible (sin window.alert)
   ========================================================================== */
.app-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(11, 15, 23, 0.75);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
}

.app-modal-overlay.active {
  display: flex;
  animation: fadeIn 0.15s ease-out;
}

.app-modal-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

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

.app-modal-title {
  font-size: 1.1rem;
}

.btn-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem;
}

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

.app-modal-body {
  padding: 1.25rem;
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.5;
}

.app-modal-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

.btn-modal-confirm {
  background: var(--primary);
  color: #0f172a;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.6rem 1.25rem;
  font-weight: 700;
  cursor: pointer;
  min-height: 40px;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

/* ==========================================================================
   Media Queries y Adaptabilidad Móvil
   ========================================================================== */
@media (max-width: 900px) {
  .calculator-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .card-main {
    padding: 1.25rem;
  }

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

  .quick-resale-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .kpi-value {
    font-size: 1.45rem;
  }

  .highlight-kpi .kpi-value {
    font-size: 1.65rem;
  }

  .btn-action-ticket {
    font-size: 0.85rem;
  }

  .ticket-highlight-price {
    font-size: 1.8rem;
  }
}