:root {
  --tema-1: #2563eb;
  --tema-2: #16a34a;
  --tema-3: #d97706;
  --tema-4: #7c3aed;
  --tema-5: #dc2626;
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background-color: #f8f9fb;
  color: #0f172a;
}

.hero {
  background: radial-gradient(circle at top right, rgba(34,197,94,.28), transparent 35%), linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
}
.module-hero { background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); }
.modelos-hero { background: linear-gradient(135deg, #172554 0%, #2563eb 100%); }
.tendencia-hero { background: linear-gradient(135deg, #064e3b 0%, #16a34a 100%); }
.evaluacion-hero { background: linear-gradient(135deg, #78350f 0%, #d97706 100%); }
.aprendizaje-hero { background: linear-gradient(135deg, #3b0764 0%, #7c3aed 100%); }

.hero-formula {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 22px;
  padding: 1.4rem;
  backdrop-filter: blur(12px);
}

.modulo-card {
  border: none;
  border-radius: 14px;
  border-top: 5px solid #999;
  transition: transform .15s ease, box-shadow .15s ease;
}
.modulo-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(0,0,0,.12) !important;
}
.modulo-card.tema-1 { border-top-color: var(--tema-1); }
.modulo-card.tema-2 { border-top-color: var(--tema-2); }
.modulo-card.tema-3 { border-top-color: var(--tema-3); }
.modulo-card.tema-4 { border-top-color: var(--tema-4); }
.modulo-card.tema-5 { border-top-color: var(--tema-5); }
.modulo-icono { font-size: 2rem; color: #334155; }

.formula-card {
  background: #fff;
  border-radius: 14px;
  border: 1px solid #e5e7eb;
  padding: 1.25rem;
  box-shadow: 0 4px 14px rgba(15,23,42,.05);
}
.formula-latex {
  overflow-x: auto;
  padding: .35rem 0;
}
.formula-latex mjx-container { font-size: 112% !important; }

.aprendizaje-panel {
  background: linear-gradient(135deg, #ffffff, #eff6ff);
  border: 1px solid #dbeafe;
  border-radius: 22px;
  box-shadow: 0 12px 30px rgba(30,58,138,.08);
}

.kpi {
  background: #fff;
  border-radius: 14px;
  border: 1px solid #e5e7eb;
  padding: 1rem;
  min-height: 88px;
  box-shadow: 0 6px 16px rgba(15,23,42,.05);
}
.kpi span { display: block; font-size: .85rem; color: #64748b; }
.kpi strong { display: block; font-size: 1.15rem; color: #0f172a; margin-top: .35rem; }
.kpi-ok { border-left: 6px solid #16a34a; }
.kpi-bad { border-left: 6px solid #dc2626; }

.top-space { top: 5.5rem; }
.tabla-scroll { max-height: 410px; overflow-y: auto; }
.chart-box { position: relative; height: 280px; width: 100%; }
.chart-box canvas { width: 100% !important; height: 100% !important; }

.pwa-install-card {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1080;
  max-width: 360px;
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 18px 46px rgba(15, 23, 42, .22);
  border: 1px solid rgba(30, 58, 138, .14);
  backdrop-filter: blur(10px);
}
.pwa-install-card[hidden] { display: none !important; }
.pwa-install-icon {
  width: 2.8rem; height: 2.8rem; border-radius: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1e3a8a, #16a34a);
  color: #fff; font-size: 1.35rem; flex-shrink: 0;
}
.pwa-install-body strong { display: block; color: #0f172a; line-height: 1.2; margin-bottom: .25rem; }
.pwa-install-body p { color: #475569; font-size: .9rem; line-height: 1.35; }
.pwa-install-actions { display: flex; flex-wrap: wrap; gap: .5rem; }

@media (max-width: 576px) {
  .hero h1 { font-size: 1.9rem; }
  .pwa-install-card { left: .75rem; right: .75rem; bottom: .75rem; max-width: none; }
}

/* ─── Nivel ultra pro: módulo de modelos dinámicos ───────────────────────── */
.modelos-hero-pro {
  background:
    radial-gradient(circle at 82% 18%, rgba(59,130,246,.55), transparent 28%),
    radial-gradient(circle at 15% 72%, rgba(22,163,74,.30), transparent 28%),
    linear-gradient(135deg, #020617 0%, #172554 48%, #1d4ed8 100%);
}

.pro-panel {
  border: 1px solid rgba(37, 99, 235, .10) !important;
  box-shadow: 0 18px 45px rgba(15, 23, 42, .10) !important;
}

.pro-step {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2563eb, #16a34a);
  color: #fff;
  font-size: .85rem;
  font-weight: 800;
  flex-shrink: 0;
}

.mini-theory-card {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 1rem;
  box-shadow: 0 10px 26px rgba(15, 23, 42, .06);
}
.mini-theory-card i {
  font-size: 1.4rem;
  color: #2563eb;
}
.mini-theory-card strong {
  display: block;
  margin-top: .45rem;
  color: #0f172a;
}
.mini-theory-card span {
  display: block;
  color: #64748b;
  font-size: .9rem;
}

.formula-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.formula-card-pro {
  background: linear-gradient(180deg, #ffffff, #f8fbff);
  border-color: #dbeafe;
}

.kpi-pro {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border-left: 6px solid #2563eb;
}
.kpi-pro small {
  display: block;
  color: #64748b;
  margin-top: .25rem;
  line-height: 1.25;
}

.chart-box-pro {
  height: 330px;
}

.reading-item {
  padding: .85rem 0;
  border-bottom: 1px solid #e5e7eb;
}
.reading-item:last-child {
  border-bottom: none;
}
.reading-item span,
.param-pill small {
  display: block;
  color: #64748b;
  font-size: .85rem;
}
.reading-item strong {
  display: block;
  color: #0f172a;
  font-size: 1.1rem;
}
.reading-item small {
  color: #64748b;
}

.param-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}
.param-pill {
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: .85rem;
  background: #fff;
}
.param-pill strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1d4ed8;
  margin-right: .35rem;
}
.param-pill span {
  font-weight: 800;
  color: #0f172a;
}

.table-pro thead th {
  white-space: nowrap;
  font-size: .85rem;
}
.table-pro tbody td {
  white-space: nowrap;
  font-size: .9rem;
}

@media (max-width: 992px) {
  .formula-grid { grid-template-columns: 1fr; }
  .top-space { top: auto; }
}

@media (max-width: 576px) {
  .param-grid { grid-template-columns: 1fr; }
  .chart-box-pro { height: 280px; }
}

/* ─── Biblioteca de modelos EDO del curso ─────────────────────────────── */
.modelos-curso-hero {
  background:
    radial-gradient(circle at 82% 18%, rgba(16,185,129,.36), transparent 28%),
    radial-gradient(circle at 15% 80%, rgba(14,165,233,.32), transparent 30%),
    linear-gradient(135deg, #020617 0%, #0f172a 44%, #1e3a8a 100%);
}

/* Refuerzo visual para el encabezado del módulo EDO: evita texto blanco sobre fondo claro si Vercel/cache no toma el gradiente principal. */
.modelos-curso-hero {
  color: #fff;
  background-color: #0f172a;
  border-bottom: 1px solid rgba(255,255,255,.10);
}
.modelos-curso-hero .lead,
.modelos-curso-hero p {
  color: rgba(255,255,255,.88);
}
.modelos-curso-hero .hero-formula {
  color: #fff;
  background: rgba(255,255,255,.12);
}

.curso-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.45rem;
  background: linear-gradient(135deg, #2563eb, #16a34a);
  flex-shrink: 0;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: .85rem;
}
.timeline-item {
  border: 1px solid #dbeafe;
  background: linear-gradient(180deg, #fff, #f8fbff);
  border-radius: 16px;
  padding: .95rem;
  min-height: 140px;
}
.timeline-item span {
  display: inline-flex;
  padding: .18rem .55rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #1d4ed8;
  font-weight: 800;
  font-size: .75rem;
  margin-bottom: .5rem;
}
.timeline-item strong {
  display: block;
  font-size: .94rem;
  color: #0f172a;
  line-height: 1.2;
  margin-bottom: .45rem;
}
.timeline-item small {
  color: #64748b;
  line-height: 1.25;
  display: block;
}

.modelos-accordion .accordion-button {
  padding: 1.1rem 1.25rem;
}
.modelo-curso-card {
  border: 1px solid #dbeafe;
  background: #fff;
  border-radius: 20px;
  padding: 1.25rem;
  box-shadow: 0 12px 28px rgba(15, 23, 42, .06);
}
.modelo-formula {
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  border-radius: 14px;
  padding: .45rem .75rem;
  margin: .75rem 0;
}
.modelo-formula.light {
  background: #eff6ff;
  border-color: #dbeafe;
}
.modelo-section {
  border-top: 1px solid #eef2f7;
  padding-top: .75rem;
  margin-top: .75rem;
}
.modelo-section strong {
  display: block;
  color: #0f172a;
  margin-bottom: .25rem;
}
.modelo-section p {
  color: #475569;
  margin-bottom: 0;
  line-height: 1.5;
}
.modelo-interpretacion {
  background: linear-gradient(135deg, #f0fdf4, #eff6ff);
  border-radius: 14px;
  padding: .9rem;
  border: 1px solid #dbeafe;
}
.modelo-details {
  margin-top: .9rem;
  border-top: 1px solid #eef2f7;
  padding-top: .8rem;
}
.modelo-details summary {
  cursor: pointer;
  font-weight: 700;
  color: #1d4ed8;
}

.lab-param-group {
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: .9rem;
  margin-bottom: 1rem;
  background: #f8fafc;
}
.lab-param-group h3 {
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: #475569;
  font-weight: 800;
  margin-bottom: .75rem;
}
.lab-param-group .form-label,
details .form-label {
  font-size: .82rem;
  color: #64748b;
  margin-bottom: .25rem;
}

@media (max-width: 1200px) {
  .timeline-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .timeline-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 576px) {
  .timeline-grid { grid-template-columns: 1fr; }
}

/* ─── Refactor financiero EDO ───────────────────────────────────────────── */
.badge.bg-light { border: 1px solid rgba(255,255,255,.55); }
.formula-card-pro h3 { color: #0f172a; }
.table td, .table th { vertical-align: middle; }
.model-note {
  border-left: 5px solid #2563eb;
  background: #eff6ff;
  padding: 1rem;
  border-radius: 14px;
}
.input-help {
  font-size: .82rem;
  color: #64748b;
}
.rank-best {
  background: #ecfdf5;
}


/* ─── Microayudas bajo cada parámetro ─────────────────────────────────── */
.param-field {
  margin-bottom: .65rem;
}
.param-field .form-label {
  margin-bottom: .25rem;
  font-weight: 600;
  color: #334155;
}
.param-help {
  display: block;
  margin-top: .28rem;
  font-size: .74rem;
  line-height: 1.22;
  color: #64748b;
}
.param-help::before {
  content: "↳ ";
  color: #2563eb;
  font-weight: 700;
}
.lab-param-group .param-help,
details .param-help {
  font-size: .72rem;
}

/* ─── Versión 2.0: aprendizaje, interpretación, sensibilidad e informe ─── */
.learning-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: linear-gradient(135deg, #eff6ff, #ffffff);
  border: 1px solid #dbeafe;
  border-radius: 18px;
}
.learning-strip strong { color: #0f172a; }
.learning-strip span { display: block; color: #64748b; font-size: .92rem; margin-top: .15rem; }
.didactic-panel {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 1rem;
  box-shadow: 0 10px 25px rgba(15,23,42,.06);
}
.step-line,
.impact-line {
  padding: .75rem .85rem;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  background: #fff;
  margin-bottom: .65rem;
}
.step-line:last-child,
.impact-line:last-child { margin-bottom: 0; }
.step-line strong,
.impact-line strong { display: block; color: #0f172a; font-size: .95rem; }
.step-line span,
.impact-line span { display: block; color: #64748b; font-size: .88rem; line-height: 1.35; margin-top: .15rem; }
.insight-list { padding-left: 1.1rem; color: #334155; }
.insight-list li { margin-bottom: .55rem; }
.semaforo-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .35rem .75rem;
  padding: .85rem 0;
  border-bottom: 1px solid #e5e7eb;
}
.semaforo-item:last-child { border-bottom: 0; }
.semaforo-item strong { color: #0f172a; }
.semaforo-item span {
  font-weight: 800;
  color: #1d4ed8;
  background: #eff6ff;
  padding: .15rem .55rem;
  border-radius: 999px;
}
.semaforo-item small { grid-column: 1 / -1; color: #64748b; line-height: 1.3; }
.print-report {
  border: 1px dashed #cbd5e1 !important;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}
.report-dl {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: .45rem 1rem;
  margin-bottom: 0;
}
.report-dl dt { color: #475569; font-weight: 700; }
.report-dl dd { margin-bottom: 0; color: #0f172a; word-break: break-word; }
@media (max-width: 768px) {
  .learning-strip { flex-direction: column; align-items: flex-start; }
  .report-dl { grid-template-columns: 1fr; }
}
@media print {
  nav, footer, .no-print, .pwa-install-card, form, .sticky-lg-top { display: none !important; }
  body { background: #fff; }
  .card, .formula-card, .didactic-panel, .kpi { box-shadow: none !important; break-inside: avoid; }
  .module-hero { color: #000 !important; background: #fff !important; border-bottom: 2px solid #111; }
  .print-report { display: block !important; }
  a[href]:after { content: ""; }
}


/* ─── Refactor EDO Lab: módulos por clase ─────────────────────────────── */
.step-card {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 1rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .05);
}
.input-help {
  color: #64748b;
  font-size: .76rem;
  line-height: 1.25;
  margin-top: .25rem;
}
.opacity-90 { opacity: .9; }
@media print {
  nav, footer, .pwa-install-card, .btn, form .btn { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none !important; border: 1px solid #e5e7eb !important; }
  .module-hero, .hero { color: #111827 !important; background: #fff !important; border-bottom: 1px solid #e5e7eb; }
}


/* ─── Clase 1: didáctica paso a paso ─────────────────────────────── */
.pro-didactic-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}
.modeling-step, .context-example, .constant-card, .check-card, .solution-step {
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(15, 23, 42, .05);
}
.modeling-step {
  display: flex;
  gap: .9rem;
  padding: 1rem;
}
.modeling-step span {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: 999px;
  background: #1d4ed8;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}
.modeling-step p, .context-example p, .constant-card p, .check-card p, .solution-step p {
  color: #64748b;
  line-height: 1.45;
}
.context-example {
  padding: 1rem;
  min-height: 100%;
}
.solution-timeline {
  position: relative;
  display: grid;
  gap: 1rem;
}
.solution-step {
  padding: 1rem 1.15rem;
  border-left: 5px solid #2563eb;
}
.solution-step h3 {
  font-size: 1rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: .5rem;
}
.solution-step p { margin-bottom: 0; }
.constant-card {
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}
.constant-card span {
  font-weight: 800;
  color: #1d4ed8;
  background: #dbeafe;
  padding: .2rem .5rem;
  border-radius: 999px;
}
.constant-card p { margin: .75rem 0 0; }
.check-card {
  display: flex;
  gap: .85rem;
  padding: 1rem;
}
.check-card i {
  color: #16a34a;
  font-size: 1.35rem;
  line-height: 1;
  margin-top: .1rem;
}

/* ─── Fórmulas LaTeX con barra horizontal visible en todas las clases ─────── */
.formula-card,
.context-example,
.step-card,
.solution-step,
.application-exercise,
.exercise-task-panel,
.hero-formula {
  min-width: 0;
}

.formula-latex {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: scroll;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: stable both-edges;
  overscroll-behavior-x: contain;
  padding: .65rem .5rem .95rem;
  border-radius: 12px;
}

.formula-card .formula-latex,
.solution-step .formula-latex,
.step-card .formula-latex,
.context-example .formula-latex,
.exercise-formula {
  background: linear-gradient(180deg, #f8fbff, #ffffff);
  border: 1px solid #e0ecff;
}

/* MathJax puede renderizar como SVG o CHTML; ambos deben mantener ancho real
   para que la fórmula no se corte y aparezca la barra inferior. */
.formula-latex mjx-container,
.formula-latex mjx-container[jax="SVG"],
.formula-latex mjx-container[jax="CHTML"] {
  display: inline-block !important;
  margin: 0 !important;
  min-width: max-content;
  max-width: none !important;
  white-space: nowrap !important;
}

.formula-latex mjx-container svg {
  max-width: none !important;
}

.formula-latex mjx-container mjx-math,
.formula-latex mjx-container mjx-mrow,
.formula-latex mjx-container mjx-mtable {
  min-width: max-content;
  max-width: none !important;
}

.hero-formula .formula-latex {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
}

.solution-step .formula-latex {
  margin: .55rem 0 .75rem;
}

.formula-latex::-webkit-scrollbar {
  height: 10px;
}
.formula-latex::-webkit-scrollbar-track {
  background: #e2e8f0;
  border-radius: 999px;
}
.formula-latex::-webkit-scrollbar-thumb {
  background: #94a3b8;
  border-radius: 999px;
  border: 2px solid #e2e8f0;
}
.formula-latex::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}
.formula-latex {
  scrollbar-width: thin;
  scrollbar-color: #94a3b8 #e2e8f0;
}

@media (max-width: 576px) {
  .formula-latex {
    padding-bottom: 1.05rem;
  }
  .formula-latex mjx-container {
    font-size: 96% !important;
  }
}




/* ─── Fórmulas dentro de tarjetas flexibles: evita recortes en Paso a paso ───
   En las tarjetas del paso a paso el contenido vive dentro de un contenedor
   flex. Sin min-width:0, el hijo conserva el ancho matemático completo y la
   barra inferior no aparece en la casilla correcta. */
.step-card,
.step-card .d-flex,
.step-card .d-flex > div,
.modeling-step,
.modeling-step > div,
.check-card,
.check-card > div,
.solution-step,
.context-example,
.constant-card,
.application-exercise,
.exercise-task-panel,
.formula-card {
  min-width: 0;
  max-width: 100%;
}

.step-card .d-flex > div,
.modeling-step > div,
.check-card > div {
  flex: 1 1 auto;
  overflow: hidden;
}

.step-card .formula-latex,
.solution-step .formula-latex,
.context-example .formula-latex,
.application-exercise .formula-latex,
.formula-card .formula-latex {
  box-sizing: border-box;
  max-width: 100%;
}

/* Refuerzo específico para bloques MathJax con tablas, matrices y aligned. */
.step-card .formula-latex mjx-container,
.solution-step .formula-latex mjx-container,
.context-example .formula-latex mjx-container,
.application-exercise .formula-latex mjx-container {
  width: max-content !important;
}

/* ─── Ejercicios de aplicación por clase ───────────────────────────────── */
.application-exercises-collapse {
  display: block;
  border: 1px solid #dbeafe;
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  box-shadow: 0 14px 34px rgba(15, 23, 42, .08);
  overflow: hidden;
}
.application-exercises-collapse > summary {
  list-style: none;
}
.application-exercises-collapse > summary::-webkit-details-marker {
  display: none;
}
.application-exercises-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 1.25rem;
  cursor: pointer;
  user-select: none;
  background: linear-gradient(135deg, #eff6ff, #ffffff);
  border-bottom: 1px solid transparent;
}
.application-exercises-summary:hover {
  background: linear-gradient(135deg, #dbeafe, #ffffff);
}
.application-exercises-collapse[open] .application-exercises-summary {
  border-bottom-color: #dbeafe;
}
.summary-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: #2563eb;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .22);
}
.summary-copy {
  display: grid;
  gap: .15rem;
  flex: 1 1 auto;
}
.summary-copy strong {
  color: #0f172a;
  font-weight: 850;
}
.summary-copy small {
  color: #64748b;
}
.summary-status {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  flex: 0 0 auto;
}
.summary-chevron {
  color: #334155;
  transition: transform .18s ease;
}
.application-exercises-collapse[open] .summary-chevron {
  transform: rotate(180deg);
}
.application-exercises-panel {
  padding: 1.2rem;
  background: #ffffff;
}
@media (max-width: 576px) {
  .application-exercises-summary {
    align-items: flex-start;
    padding: .95rem;
  }
  .summary-status {
    flex-direction: column;
    align-items: flex-end;
  }
  .summary-copy small {
    font-size: .78rem;
  }
  .application-exercises-panel {
    padding: .95rem;
  }
}
.application-exercises-card {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}
.application-exercise {
  border: 1px solid #dbeafe;
  background: linear-gradient(180deg, #ffffff, #f8fbff);
  border-radius: 20px;
  padding: 1.15rem;
  box-shadow: 0 12px 28px rgba(15, 23, 42, .06);
}
.application-exercise h3 {
  font-size: 1rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: .35rem;
}
.exercise-context {
  color: #475569;
  margin-bottom: .65rem;
  line-height: 1.45;
}
.exercise-formula {
  background: #eff6ff;
  border: 1px solid #dbeafe;
  border-radius: 14px;
  padding: .55rem .75rem;
  margin: .75rem 0;
}
.exercise-data-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .65rem;
}
.exercise-data-item {
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  background: #fff;
  padding: .7rem .75rem;
}
.exercise-data-item span {
  display: block;
  color: #64748b;
  font-size: .78rem;
  line-height: 1.2;
}
.exercise-data-item strong {
  display: block;
  color: #0f172a;
  font-size: .88rem;
  margin-top: .2rem;
}
.exercise-task-panel {
  border-left: 5px solid #2563eb;
  background: #ffffff;
  border-radius: 14px;
  padding: .9rem 1rem;
}
.exercise-task-panel strong {
  display: block;
  color: #0f172a;
  margin-bottom: .45rem;
}
.exercise-task-panel ol {
  padding-left: 1.15rem;
  color: #334155;
}
.exercise-task-panel li {
  margin-bottom: .35rem;
}
.exercise-task-panel li:last-child {
  margin-bottom: 0;
}
.exercise-hint {
  display: flex;
  gap: .5rem;
  align-items: flex-start;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 14px;
  padding: .75rem .85rem;
  font-size: .9rem;
  line-height: 1.35;
}
.exercise-hint i {
  color: #d97706;
  flex-shrink: 0;
}
.formula-inline mjx-container {
  display: inline-block !important;
  margin: 0 .05rem !important;
  font-size: 100% !important;
}

@media (max-width: 992px) {
  .exercise-data-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 576px) {
  .exercise-data-grid { grid-template-columns: 1fr; }
  .application-exercise { padding: .95rem; }
}

/* Filtro didáctico de parámetros por modelo seleccionado */
.param-filter-note {
  display: flex;
  align-items: flex-start;
  gap: .45rem;
  border: 1px solid #dbeafe;
  background: #eff6ff;
  color: #1e3a8a;
  border-radius: 12px;
  padding: .65rem .75rem;
  font-size: .82rem;
  line-height: 1.35;
}
.param-filter-note i {
  color: #2563eb;
  flex-shrink: 0;
  margin-top: .05rem;
}
.param-field {
  transition: opacity .16s ease, transform .16s ease;
}
.param-field.d-none {
  display: none !important;
}

/* ─── Guía PWA iPhone/iPad y Safari ─────────────────────────────────────── */
.pwa-modal-open {
  overflow: hidden;
}

.pwa-ios-guide {
  position: fixed;
  inset: 0;
  z-index: 1095;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, .58);
  backdrop-filter: blur(7px);
}

.pwa-ios-guide[hidden] {
  display: none !important;
}

.pwa-ios-guide-panel {
  width: min(560px, 100%);
  max-height: min(92vh, 760px);
  overflow-y: auto;
  position: relative;
  border-radius: 24px;
  padding: 1.25rem;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, .35);
  box-shadow: 0 26px 70px rgba(2, 6, 23, .34);
}

.pwa-ios-guide-close {
  position: absolute;
  top: .85rem;
  right: .85rem;
  width: 2.25rem;
  height: 2.25rem;
  border: 0;
  border-radius: 999px;
  background: #f1f5f9;
  color: #0f172a;
  font-size: 1.45rem;
  line-height: 1;
}

.pwa-ios-guide-header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding-right: 2.2rem;
  margin-bottom: 1rem;
}

.pwa-ios-guide-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
  font-size: 1.55rem;
  background: linear-gradient(135deg, #1e3a8a, #2563eb 52%, #16a34a);
}

.pwa-ios-guide h2 {
  margin: 0 0 .35rem 0;
  color: #0f172a;
  font-size: clamp(1.25rem, 4vw, 1.65rem);
  line-height: 1.15;
}

.pwa-ios-guide p,
.pwa-ios-guide span {
  color: #475569;
  line-height: 1.45;
}

.pwa-ios-steps {
  display: grid;
  gap: .75rem;
  padding-left: 0;
  list-style: none;
  counter-reset: ios-step;
}

.pwa-ios-steps li {
  counter-increment: ios-step;
  position: relative;
  padding: .9rem .9rem .9rem 3.3rem;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.pwa-ios-steps li::before {
  content: counter(ios-step);
  position: absolute;
  left: .85rem;
  top: .9rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #1d4ed8;
  color: #fff;
  font-weight: 800;
  font-size: .85rem;
}

.pwa-ios-steps strong {
  display: block;
  color: #0f172a;
  margin-bottom: .2rem;
}

.pwa-ios-guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1rem;
}

.pwa-ios-note {
  margin-top: .75rem;
  font-size: .88rem;
}

@media (max-width: 576px) {
  .pwa-ios-guide {
    align-items: flex-end;
    padding: .6rem;
  }
  .pwa-ios-guide-panel {
    border-radius: 22px 22px 16px 16px;
    padding: 1rem;
  }
  .pwa-ios-guide-header {
    gap: .75rem;
  }
  .pwa-ios-steps li {
    padding: .8rem .8rem .8rem 3rem;
  }
}