/* ==========================================================================
   Selector y optimizador de Wi-Fi para casa - Hoja de estilos principal
   fijate.com/tools/selector-wifi-casa-redes/
   ========================================================================== */

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

  /* Colores temáticos */
  --wifi-cyan: #06b6d4;
  --wifi-cyan-dark: #0891b2;
  --wifi-cyan-glow: rgba(6, 182, 212, 0.18);
  --wifi-emerald: #10b981;
  --wifi-emerald-glow: rgba(16, 185, 129, 0.18);
  --wifi-amber: #f59e0b;
  --wifi-rose: #f43f5e;
  --wifi-indigo: #6366f1;

  /* Tema oscuro por defecto */
  --bg-page: #0b0f17;
  --bg-card: #131b28;
  --bg-card-alt: #1a2436;
  --bg-input: #0e1522;
  --border-color: #233148;
  --border-focus: #06b6d4;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
}

[data-theme="light"] {
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-alt: #f1f5f9;
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #0891b2;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
}

/* --------------------------------------------------------------------------
   Reset y contención estructural 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-primary);
  line-height: 1.6;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  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%;
}

/* --------------------------------------------------------------------------
   Tipografías y titulares
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  margin-top: 0;
  line-height: 1.25;
  font-weight: 700;
}

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

.text-accent {
  color: var(--wifi-cyan);
}

.text-success {
  color: var(--wifi-emerald);
}

/* --------------------------------------------------------------------------
   Hero Card introductoria
   -------------------------------------------------------------------------- */
.wifi-hero-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-alt) 100%);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem 2.25rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.wifi-hero-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, var(--wifi-cyan-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-header-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--wifi-cyan);
  background-color: var(--wifi-cyan-glow);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 0.85rem;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.hero-headline {
  font-size: 1.85rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 860px;
  margin: 0;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Secciones y tarjetas contenedoras
   -------------------------------------------------------------------------- */
.wifi-section-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem 2.25rem;
  margin-bottom: 2.25rem;
  box-shadow: var(--shadow-sm);
}

.section-badge-step {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--wifi-cyan);
  background: var(--wifi-cyan-glow);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

.section-title {
  font-size: 1.45rem;
  margin-bottom: 0.4rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.96rem;
  margin-top: 0;
  margin-bottom: 1.75rem;
}

/* --------------------------------------------------------------------------
   Formulario interactivo y controles táctiles
   -------------------------------------------------------------------------- */
.wifi-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.form-group-card {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group-card.full-width {
  grid-column: 1 / -1;
}

.form-group-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.85rem;
}

.group-icon {
  font-size: 1.25rem;
}

.group-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--text-primary);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

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

.wifi-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 44px;
  min-height: 44px;
  padding: 0 40px 0 1rem;
  font-family: var(--font-main);
  font-size: 0.94rem;
  color: var(--text-primary);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  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='%2306b6d4' 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;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

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

.wifi-select option {
  background-color: var(--bg-card);
  color: var(--text-primary);
  padding: 0.5rem;
}

/* Pills de selección de actividades */
.checkbox-pills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
}

.checkbox-pill {
  position: relative;
  cursor: pointer;
}

.pill-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pill-box {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background-color: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  transition: all 0.2s ease;
}

.pill-emoji {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.pill-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

.pill-text strong {
  display: block;
  color: var(--text-primary);
  font-size: 0.93rem;
  margin-bottom: 0.15rem;
}

.pill-input:checked + .pill-box {
  border-color: var(--wifi-cyan);
  background-color: var(--wifi-cyan-glow);
}

.pill-input:focus + .pill-box {
  box-shadow: 0 0 0 3px var(--wifi-cyan-glow);
}

/* --------------------------------------------------------------------------
   Resultados y Veredicto de Topología
   -------------------------------------------------------------------------- */
.results-section {
  border-left: 4px solid var(--wifi-cyan);
}

.verdict-banner {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.12) 0%, rgba(99, 102, 241, 0.08) 100%);
  border: 1px solid rgba(6, 182, 212, 0.35);
  border-radius: 14px;
  padding: 1.6rem 1.85rem;
  margin-bottom: 1.75rem;
}

.verdict-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--wifi-cyan);
  color: #0b0f17;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
}

.verdict-info {
  flex: 1;
}

.verdict-kicker {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--wifi-cyan);
  margin-bottom: 0.25rem;
}

.verdict-title {
  font-size: 1.4rem;
  margin: 0 0 0.5rem 0;
  color: var(--text-primary);
}

.verdict-summary {
  font-size: 0.96rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.55;
}

/* Grid de métricas KPI */
.metrics-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.kpi-card {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.2rem 1rem;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.kpi-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  min-height: 2.2em;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.kpi-help {
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* Comparativa de Opciones (Óptima vs Económica) */
.options-comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

.option-card {
  background-color: var(--bg-card-alt);
  border: 1.5px solid var(--border-color);
  border-radius: 14px;
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

.option-recommended {
  border-color: var(--wifi-cyan);
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.06) 0%, var(--bg-card-alt) 100%);
}

.option-badge {
  align-self: flex-start;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #0b0f17;
  background-color: var(--wifi-cyan);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  margin-bottom: 0.9rem;
}

.option-badge-alt {
  color: var(--text-primary);
  background-color: var(--border-color);
}

.option-title {
  font-size: 1.18rem;
  margin-bottom: 0.6rem;
}

.option-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.1rem;
}

.option-specs-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.option-specs-list li {
  position: relative;
  padding-left: 1.35rem;
}

.option-specs-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--wifi-emerald);
  font-weight: 700;
}

/* Callout de Advertencia */
.warning-callout-box {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: rgba(244, 63, 94, 0.08);
  border: 1px solid rgba(244, 63, 94, 0.35);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
}

.callout-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.callout-content {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.callout-content strong {
  display: block;
  color: var(--wifi-rose);
  margin-bottom: 0.25rem;
}

.callout-content p {
  margin: 0;
}

/* Barra de acciones de informe */
.report-actions-bar {
  display: flex;
  justify-content: center;
  padding-top: 0.5rem;
}

.btn-wifi-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background-color: var(--wifi-cyan);
  color: #0b0f17;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--wifi-cyan-glow);
  transition: transform 0.15s ease, filter 0.15s ease;
  min-height: 44px;
}

.btn-wifi-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-wifi-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background-color: var(--bg-card-alt);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.75rem 1.35rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: background-color 0.15s ease;
  min-height: 44px;
}

.btn-wifi-secondary:hover {
  background-color: var(--border-color);
}

/* --------------------------------------------------------------------------
   Simulador Interactivo de Atenuación y Espectro
   -------------------------------------------------------------------------- */
.sim-controls-panel {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sim-control-row {
  margin-bottom: 1.25rem;
}

.sim-select {
  max-width: 500px;
}

.sim-sliders-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.sim-slider-box {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

.slider-title {
  color: var(--text-secondary);
  font-weight: 600;
}

.slider-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--wifi-cyan);
}

.wifi-range {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--bg-input);
  outline: none;
  cursor: pointer;
  accent-color: var(--wifi-cyan);
}

/* Medidor visual de telemetría simulada */
.sim-meter-card {
  background: linear-gradient(135deg, var(--bg-card-alt) 0%, var(--bg-card) 100%);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.6rem 1.85rem;
}

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

.meter-title-box {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.meter-label {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.meter-val {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
}

.signal-badge {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-excellent {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--wifi-emerald);
  border: 1px solid var(--wifi-emerald);
}

.badge-good {
  background-color: rgba(6, 182, 212, 0.2);
  color: var(--wifi-cyan);
  border: 1px solid var(--wifi-cyan);
}

.badge-weak {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--wifi-amber);
  border: 1px solid var(--wifi-amber);
}

.badge-dead {
  background-color: rgba(244, 63, 94, 0.2);
  color: var(--wifi-rose);
  border: 1px solid var(--wifi-rose);
}

.rssi-bar-track {
  width: 100%;
  height: 12px;
  background-color: var(--bg-input);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.rssi-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--wifi-rose) 0%, var(--wifi-amber) 35%, var(--wifi-cyan) 70%, var(--wifi-emerald) 100%);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

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

.sim-kpi {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.sim-kpi-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.sim-kpi-val {
  font-family: var(--font-heading);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Guía Técnica SEO y Enciclopedia Didáctica
   -------------------------------------------------------------------------- */
.seo-guide-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.25rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.seo-guide-section h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--wifi-cyan);
  padding-bottom: 0.6rem;
  display: inline-block;
}

.seo-guide-section h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.seo-guide-section p {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

/* Tabla comparativa de estándares */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin-bottom: 2rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.wifi-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
  min-width: 600px;
}

.wifi-table th {
  background-color: var(--bg-card-alt);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.wifi-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

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

.wifi-table tr:hover td {
  background-color: rgba(6, 182, 212, 0.04);
}

/* Tarjetas de Bandas electromagnéticas */
.bands-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.band-card {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.band-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}

.band-24 {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--wifi-amber);
}

.band-50 {
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--wifi-cyan);
}

.band-60 {
  background-color: rgba(99, 102, 241, 0.15);
  color: var(--wifi-indigo);
}

.band-card h4 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.band-card p {
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.band-ideal-for {
  margin-top: auto;
  font-size: 0.85rem;
  background-color: var(--bg-card);
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

/* Tarjetas de Mitos y Verdades */
.myths-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.myth-card {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.4rem;
}

.myth-badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.65rem;
}

.myth-false {
  background-color: rgba(244, 63, 94, 0.2);
  color: var(--wifi-rose);
}

.myth-true {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--wifi-emerald);
}

.myth-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.myth-card p {
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

/* Lista de Trucos a Coste Cero */
.tricks-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.trick-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.35rem;
}

.trick-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--wifi-cyan);
  color: #0b0f17;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.trick-content {
  flex: 1;
}

.trick-content h4 {
  font-size: 1.08rem;
  margin-bottom: 0.35rem;
}

.trick-content p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.trick-content code {
  background-color: var(--bg-input);
  color: var(--wifi-cyan);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

/* --------------------------------------------------------------------------
   Acordeón de Preguntas Frecuentes (FAQ)
   -------------------------------------------------------------------------- */
.faq-accordion-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1rem;
}

.faq-item {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

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

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.15rem 1.35rem;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  list-style: none;
}

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

.faq-chevron {
  color: var(--wifi-cyan);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  padding: 0 1.35rem 1.25rem 1.35rem;
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.65;
}

.faq-answer p {
  margin: 0;
}

/* --------------------------------------------------------------------------
   Modal accesible para el Informe Técnico
   -------------------------------------------------------------------------- */
.wifi-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 1.5rem;
}

.wifi-modal-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  max-width: 760px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.wifi-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.6rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--wifi-cyan);
}

.modal-title {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.btn-modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.btn-modal-close:hover {
  color: var(--text-primary);
  background-color: var(--bg-card-alt);
}

.wifi-modal-body {
  padding: 1.75rem;
  overflow-y: auto;
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.report-summary-box {
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.report-section-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-top: 1.4rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.35rem;
}

.report-section-title:first-child {
  margin-top: 0;
}

.report-list {
  padding-left: 1.25rem;
  margin: 0.5rem 0 1rem 0;
}

.report-list li {
  margin-bottom: 0.4rem;
}

.wifi-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.6rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-card-alt);
}

/* --------------------------------------------------------------------------
   Estilos de Impresión
   -------------------------------------------------------------------------- */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .fijate-footer,
  .report-actions-bar,
  .wifi-modal-footer {
    display: none !important;
  }
  .wifi-modal-backdrop {
    position: static !important;
    background: transparent !important;
    padding: 0 !important;
  }
  .wifi-modal-container {
    max-width: 100% !important;
    border: none !important;
    box-shadow: none !important;
  }
}

/* --------------------------------------------------------------------------
   Diseño Responsivo (Mobile y Tablets)
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .wifi-form-grid {
    grid-template-columns: 1fr;
  }

  .checkbox-pills-grid {
    grid-template-columns: 1fr;
  }

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

  .options-comparison-grid {
    grid-template-columns: 1fr;
  }

  .sim-sliders-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .wifi-hero-card,
  .wifi-section-card,
  .seo-guide-section {
    padding: 1.35rem 1.25rem;
    border-radius: 12px;
  }

  .hero-headline {
    font-size: 1.45rem;
  }

  .verdict-banner {
    flex-direction: column;
    padding: 1.25rem;
  }

  .verdict-icon {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
  }

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

  .sim-results-grid {
    grid-template-columns: 1fr;
  }

  .meter-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .wifi-modal-footer {
    flex-direction: column;
  }

  .wifi-modal-footer button {
    width: 100%;
  }
}