/**
 * ============================================================================
 * COMERC.IA - Design System & Base Styles
 * Estética: Ejecutiva, Tecnológica, Corporativa y Elegante.
 * Mobile-First & Pure CSS.
 * ============================================================================
 */

/* ==========================================================================
   1. VARIABLES CSS (DESIGN TOKENS)
   ========================================================================== */
:root {
  /* Paleta de Colores Primarios (Azul Marino Profundo) */
  --color-primary-950: #060E1A;
  --color-primary-900: #0A192F;
  --color-primary-800: #0F274A;
  --color-primary-700: #153866;
  --color-primary-600: #1C4D8C;

  /* Paleta de Acento (Naranja Ejecutivo) */
  --color-accent-500: #FF6B00;
  --color-accent-600: #E65A00;
  --color-accent-400: #FF8533;
  --color-accent-soft: rgba(255, 107, 0, 0.08);
  --color-accent-glow: rgba(255, 107, 0, 0.25);

  /* Fondos y Superficies */
  --color-bg-main: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-bg-subtle: #F4F7FA;
  --color-surface-card: #FFFFFF;

  /* Tipografía y Neutros */
  --color-text-primary: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted: #64748B;
  --color-text-light: #F8FAFC;
  --color-text-white: #FFFFFF;

  /* Bordes y Líneas */
  --color-border-light: #F1F5F9;
  --color-border-subtle: #E2E8F0;
  --color-border-strong: #CBD5E1;

  /* Tipografía */
  --font-family-heading: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-family-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-md: 1.125rem;    /* 18px */
  --font-size-lg: 1.25rem;     /* 20px */
  --font-size-xl: 1.5rem;      /* 24px */
  --font-size-2xl: 1.875rem;   /* 30px */
  --font-size-3xl: 2.25rem;    /* 36px */
  --font-size-4xl: 3rem;       /* 48px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.15;
  --line-height-snug: 1.35;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  /* Espaciados */
  --space-2xs: 0.25rem; /* 4px */
  --space-xs: 0.5rem;   /* 8px */
  --space-sm: 0.75rem;  /* 12px */
  --space-md: 1rem;     /* 16px */
  --space-lg: 1.5rem;   /* 24px */
  --space-xl: 2rem;     /* 32px */
  --space-2xl: 3rem;    /* 48px */
  --space-3xl: 4.25rem; /* 68px */

  /* Dimensiones de Contenedor Ampliado */
  --container-max-width: 1280px;
  --container-narrow-max-width: 1000px;
  --container-padding: 1.5rem;

  /* Sombras y Elevación */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);

  /* Bordes Redondeados */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Z-Index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-header: 1000;
  --z-modal: 2000;
}

/* ==========================================================================
   2. RESET Y ESTILOS BASE (MOBILE-FIRST)
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 3px;
}

/* ==========================================================================
   3. TIPOGRAFÍA Y ENCABEZADOS
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  color: var(--color-primary-900);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.025em;
}

p {
  color: var(--color-text-secondary);
}

/* ==========================================================================
   4. ESTRUCTURA DE BOTONES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-family-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1;
}

.btn-primary {
  background-color: var(--color-accent-500);
  color: var(--color-text-white);
  box-shadow: 0 4px 14px var(--color-accent-glow);
}

.btn-primary:hover {
  background-color: var(--color-accent-600);
  color: var(--color-text-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 0, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px var(--color-accent-glow);
}

.btn-arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   5. HEADER Y NAVEGACIÓN
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: all var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
}

.logo-text {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary-900);
  letter-spacing: -0.03em;
}

.logo-accent {
  color: var(--color-accent-500);
}

.main-nav {
  position: fixed;
  top: 4.25rem;
  left: 0;
  right: 0;
  background-color: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border-subtle);
  padding: var(--space-lg) var(--container-padding);
  box-shadow: var(--shadow-md);
  display: none;
  flex-direction: column;
  gap: var(--space-md);
}

.main-nav.is-active {
  display: flex;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.nav-link {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary-900);
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-white);
  background-color: var(--color-primary-900);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.nav-cta-btn:hover {
  background-color: var(--color-primary-800);
  color: var(--color-text-white);
}

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  padding: 4px;
}

.menu-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-primary-900);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ==========================================================================
   6. CONTENEDORES Y ESTRUCTURA DE SECCIÓN
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  max-width: var(--container-narrow-max-width);
}

.section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  position: relative;
  width: 100%;
}

.chapter-wrapper {
  position: relative;
  width: 100%;
}

.chapter-soft {
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.chapter-light {
  background-color: var(--color-bg-main);
}

.section-dark {
  background-color: var(--color-primary-950);
  color: var(--color-text-white);
  border-top: 1px solid var(--color-primary-800);
  border-bottom: 1px solid var(--color-primary-800);
}

/* Cabeceras de Sección */
.section-header {
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.section-title {
  font-family: var(--font-family-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.375rem);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary-900);
  line-height: 1.2;
}

.title-light {
  color: var(--color-text-white);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 780px;
}

.subtitle-light {
  color: var(--color-text-muted);
}

/* ==========================================================================
   7. SECCIÓN HERO (EJECUTIVA - DOS COLUMNAS EN DESKTOP)
   ========================================================================== */
.section-hero {
  position: relative;
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-3xl);
  background: 
    radial-gradient(circle at 90% 10%, rgba(10, 25, 47, 0.03) 0%, transparent 60%),
    radial-gradient(circle at 10% 90%, rgba(255, 107, 0, 0.03) 0%, transparent 50%),
    var(--color-bg-main);
  border-bottom: 1px solid var(--color-border-subtle);
  overflow: hidden;
}

.hero-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
}

/* Eyebrow Badge */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border-subtle);
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.eyebrow-indicator {
  width: 7px;
  height: 7px;
  background-color: var(--color-accent-500);
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.eyebrow-text {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.06em;
  color: var(--color-primary-900);
  text-transform: uppercase;
}

/* Título Hero */
.hero-title {
  font-family: var(--font-family-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.14;
  letter-spacing: -0.035em;
  color: var(--color-primary-950);
  margin-bottom: var(--space-md);
}

/* Descripción de Apoyo */
.hero-description {
  font-size: 1.0625rem;
  line-height: 1.68;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 640px;
}

/* Idea Central / Principio Estratégico */
.hero-principle {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border-subtle);
  border-left: 3px solid var(--color-accent-500);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

.principle-mark {
  flex-shrink: 0;
  width: 4px;
}

.principle-quote {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.principle-label {
  font-family: var(--font-family-heading);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-600);
}

.principle-text {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
}

/* CTA & Microcopy */
.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  width: 100%;
}

.btn-hero {
  width: 100%;
  padding: 1.125rem 1.75rem;
  font-size: var(--font-size-base);
  letter-spacing: 0.02em;
}

.hero-microcopy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2xs) var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2xs);
}

.hero-microcopy strong {
  color: var(--color-primary-900);
  font-weight: var(--font-weight-semibold);
}

.microcopy-sep {
  color: var(--color-border-strong);
}

/* Visual Arquitectura Hero */
.hero-visual {
  width: 100%;
}

.architecture-diagram {
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  width: 100%;
}

.diagram-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-md);
}

.diagram-status {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: #10B981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.status-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
}

.diagram-badge {
  font-family: var(--font-family-heading);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-600);
  background-color: var(--color-accent-soft);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.diagram-grid {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.node-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all var(--transition-fast);
}

.node-card:hover {
  border-color: var(--color-border-strong);
  background-color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.node-icon-box {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-900);
  color: var(--color-text-white);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.node-num {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.node-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.node-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
}

.node-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.diagram-flow-arrow {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 1.5rem;
  color: var(--color-accent-500);
  opacity: 0.85;
}

.diagram-core {
  margin-top: var(--space-md);
  background-color: var(--color-primary-950);
  border: 1px solid var(--color-primary-800);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  position: relative;
  overflow: hidden;
}

.core-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2px;
}

.core-tag {
  font-family: var(--font-family-heading);
  font-size: 0.625rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-400);
}

.core-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
}

/* ==========================================================================
   8. LAYOUTS DE SECCIONES (ANCHO AMPLIO & RITMO FLUIDO)
   ========================================================================== */

/* Problema */
.problem-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.problem-item {
  background-color: var(--color-bg-main);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-fast);
}

.problem-item:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.problem-item-marker {
  width: 28px;
  height: 3px;
  background-color: var(--color-accent-500);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.problem-item-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
  margin-bottom: var(--space-2xs);
}

.problem-item-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Cierre Visual de la Sección Problema */
.problem-closing {
  margin-top: var(--space-xl);
  display: flex;
  justify-content: flex-start;
}

.problem-closing-quote {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--color-bg-main);
  border: 1px solid var(--color-border-subtle);
  border-left: 3px solid var(--color-accent-500);
  padding: 0.875rem 1.375rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-family-heading);
  font-size: 0.9375rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
  box-shadow: var(--shadow-xs);
}

/* Transformación: Comparativa */
.transformation-comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.comparison-column {
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid var(--color-border-subtle);
}

.column-current {
  background-color: var(--color-bg-main);
}

.column-target {
  background-color: var(--color-primary-900);
  color: var(--color-text-white);
  border-color: var(--color-primary-700);
}

.column-badge {
  display: inline-block;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.badge-current {
  background-color: var(--color-bg-subtle);
  color: var(--color-text-secondary);
}

.badge-target {
  background-color: var(--color-accent-500);
  color: var(--color-text-white);
}

.column-heading {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
}

.column-target .column-heading {
  color: var(--color-text-white);
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.comparison-list li {
  font-size: var(--font-size-sm);
  line-height: 1.55;
  padding-left: 1.25rem;
  position: relative;
}

.column-current .comparison-list li {
  color: var(--color-text-secondary);
}

.column-target .comparison-list li {
  color: var(--color-text-light);
}

.column-current .comparison-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}

.column-target .comparison-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-400);
  font-weight: bold;
}

/* Arquitectura Comercial */
.architecture-canvas-placeholder {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.canvas-header {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--space-lg);
}

.canvas-tag {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.canvas-sub {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.canvas-grid-preview {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.canvas-node {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  font-family: var(--font-family-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
  text-align: center;
}

/* Cómo Funciona */
.steps-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.step-item {
  border-top: 2px solid var(--color-accent-500);
  padding-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.step-badge {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-600);
}

.step-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
}

.step-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* 8 Sesiones */
.curriculum-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.session-card {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  transition: all var(--transition-fast);
}

.session-card:hover {
  background-color: #FFFFFF;
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-xs);
}

.session-num {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-500);
}

.session-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
}

.session-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Qué Incluye */
.deliverables-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.deliverable-box {
  background-color: var(--color-bg-main);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.deliverable-tag {
  display: inline-block;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-600);
  margin-bottom: var(--space-xs);
}

.deliverable-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
  margin-bottom: var(--space-2xs);
}

.deliverable-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Bonos */
.bonuses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.bonus-card {
  background-color: var(--color-bg-main);
  border: 1px solid var(--color-border-subtle);
  border-left: 4px solid var(--color-accent-500);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.bonus-badge {
  display: inline-block;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-600);
  margin-bottom: var(--space-xs);
}

.bonus-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
  margin-bottom: var(--space-2xs);
}

.bonus-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Para Quién Es (2 Columnas) */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.audience-box {
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.audience-for {
  background-color: #F8FAFC;
  border-top: 3px solid #10B981;
}

.audience-not {
  background-color: #FFF4F2;
  border: 1px solid rgba(220, 38, 38, 0.14);
  border-top: 3px solid #F97316;
}

.audience-header {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.audience-indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
}

.indicator-for {
  background-color: #10B981;
}

.indicator-not {
  background-color: #F97316;
}

.audience-box-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
}

.audience-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.audience-list li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding-left: 1.25rem;
  position: relative;
}

.audience-for .audience-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #10B981;
  font-weight: bold;
}

.audience-not .audience-list li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: #F97316;
  font-weight: bold;
}

/* Garantía */
.guarantee-card {
  background-color: #EEF2F7;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.guarantee-accent-bar {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--color-accent-500);
}

.guarantee-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.guarantee-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
  margin-bottom: var(--space-xs);
}

.guarantee-text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* Generación Fundadora y Precio */
.pricing-card-wrapper {
  width: 100%;
}

.pricing-card {
  background-color: var(--color-primary-900);
  border: 1px solid var(--color-primary-700);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.pricing-main-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pricing-tag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-400);
  background-color: rgba(255, 107, 0, 0.12);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: var(--space-2xs);
}

.pricing-amount .currency {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
}

.pricing-amount .price-value {
  font-family: var(--font-family-heading);
  font-size: 3.5rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-white);
  line-height: 1;
}

.pricing-note {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  opacity: 0.85;
}


.cta-wa-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  align-self: flex-start;
  margin-top: .15rem;
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-primary-800);
  text-decoration: none;
}

.cta-wa-link:hover {
  text-decoration: underline;
}

.cta-wa-dot {
  width: .62rem;
  height: .62rem;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.12);
  flex: 0 0 auto;
}

.cta-wa-link-light {
  color: var(--color-text-white);
}

.hero-cta-group .cta-wa-link,
.pricing-action .cta-wa-link,
.cta-final-action .cta-wa-link {
  margin-top: .15rem;
}

.pricing-action .cta-wa-link,
.cta-final-action .cta-wa-link {
  align-self: center;
}

.btn-pricing {
  width: 100%;
  padding: 1.125rem 1.5rem;
  font-size: var(--font-size-sm);
  text-align: center;
  justify-content: center;
}

.pricing-dates {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2xs);
  text-align: center;
}

.pricing-features {
  border-top: 1px solid var(--color-primary-800);
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.features-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.features-list li {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  opacity: 0.9;
  line-height: 1.5;
  padding-left: 1.25rem;
  position: relative;
}

.features-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-400);
  font-weight: bold;
}

/* Preguntas Frecuentes */
.faq-list {
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid var(--color-border-subtle);
  padding: var(--space-md) 0;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-900);
  padding: var(--space-xs) 0;
  background: none;
  border: none;
  cursor: pointer;
  gap: var(--space-md);
}

.faq-chevron {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-accent-500);
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  line-height: 1;
}

.faq-answer {
  display: none;
  padding-top: var(--space-xs);
  padding-bottom: var(--space-md);
}

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

.faq-item.is-open .faq-chevron {
  transform: rotate(45deg);
}

.faq-answer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* CTA Final */
.section-cta-final {
  text-align: center;
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.cta-final-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.cta-final-title {
  font-family: var(--font-family-heading);
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-white);
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 780px;
}

.cta-final-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 680px;
}

.cta-final-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  width: 100%;
  margin-top: var(--space-sm);
}

.btn-cta-final {
  width: 100%;
  padding: 1.125rem 2rem;
  font-size: var(--font-size-base);
}

.cta-final-microcopy {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ==========================================================================
   9. FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-primary-950);
  color: var(--color-text-light);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-top: 1px solid var(--color-primary-800);
}

.footer-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.footer-brand .logo-text {
  color: var(--color-text-white);
  font-size: var(--font-size-xl);
}

.footer-desc {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--space-xs);
  max-width: 360px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-white);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.copyright {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

/* ==========================================================================
   10. RESPONSIVE MEDIA QUERIES (MOBILE-FIRST)
   ========================================================================== */

/* Tablet (min-width: 768px) */
@media (min-width: 768px) {
  .section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .btn-hero {
    width: auto;
    min-width: 300px;
  }

  .btn-pricing,
  .btn-cta-final {
    width: auto;
    min-width: 340px;
  }

  .hero-cta-group {
    align-items: flex-start;
  }

  .problem-layout {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

  .deliverables-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
  }

  .footer-bottom {
    grid-column: span 2;
  }
}

/* Desktop (min-width: 1024px) */
@media (min-width: 1024px) {
  :root {
    --container-padding: 2.5rem;
  }

  .section {
    padding-top: 4.25rem;
    padding-bottom: 4.25rem;
  }

  .mobile-menu-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    background: transparent;
    padding: 0;
    box-shadow: none;
    border-bottom: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-xl);
  }

  /* Hero Desktop Layout (Dos Columnas Claras) */
  .hero-container {
    display: grid;
    grid-template-columns: 1.12fr 0.88fr;
    align-items: center;
    gap: 3.5rem;
  }

  .hero-title {
    font-size: 3.125rem;
  }

  .architecture-diagram {
    padding: var(--space-xl);
  }

  /* Grids de ancho completo para Desktop */
  .canvas-grid-preview {
    grid-template-columns: repeat(4, 1fr);
  }

  .steps-flow {
    grid-template-columns: repeat(3, 1fr);
  }

  .curriculum-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .pricing-card {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    padding: var(--space-2xl);
  }

  .pricing-features {
    border-top: none;
    border-left: 1px solid var(--color-primary-800);
    padding-top: 0;
    padding-left: var(--space-xl);
  }
}


/* ==========================================================================
   11. COMERC.IA FINAL CONTENT REFINEMENTS
   ========================================================================== */
.hero-start-now {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: var(--color-accent-600);
  font-weight: var(--font-weight-semibold);
}

/* Arquitectura comercial: sistema conectado */
.architecture-intro { max-width: 930px; }
.architecture-system {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
  overflow: hidden;
}
.architecture-system::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle at 50% 100%, rgba(255,107,0,.11), transparent 46%);
}
.territories-grid {
  position: relative; z-index: 1; display: grid; grid-template-columns: 1fr; gap: .85rem;
}
.territory-card {
  position: relative; min-height: 145px; padding: 1.15rem 1.15rem 1.1rem 1.2rem;
  border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-md);
  background: rgba(255,255,255,.055);
}
.territory-card::after {
  content: ""; position: absolute; left: 0; top: 1rem; bottom: 1rem; width: 2px;
  background: var(--color-accent-500); opacity: .8; border-radius: 2px;
}
.territory-num {
  display: inline-block; margin-bottom: .55rem; font-family: var(--font-family-heading);
  font-size: .72rem; font-weight: 800; letter-spacing: .1em; color: var(--color-accent-400);
}
.territory-card h3 { color: #fff; font-size: 1rem; margin-bottom: .45rem; letter-spacing: -.015em; }
.territory-card p { color: #B8C4D3; font-size: .82rem; line-height: 1.55; }
.ai-transversal-layer {
  position: relative; z-index: 2; margin-top: 1rem; padding: 1rem 1.15rem;
  display: grid; gap: .35rem; border: 1px solid rgba(255,133,51,.42);
  border-radius: var(--radius-md); background: rgba(255,107,0,.08);
}
.ai-layer-label { display: flex; align-items: center; gap: .55rem; color: #fff; font-family: var(--font-family-heading); font-size: .82rem; letter-spacing: .05em; }
.ai-pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent-500); box-shadow: 0 0 0 4px rgba(255,107,0,.14); }
.ai-transversal-layer p { color: #D7DEE8; font-size: .84rem; line-height: 1.55; }

/* Entregables y bonos */
.deliverables-grid { grid-template-columns: 1fr; }
.bonuses-grid { grid-template-columns: 1fr; }
.bonus-card { min-height: 180px; }
.guarantee-kicker, .cta-final-kicker {
  display: inline-block; font-family: var(--font-family-heading); font-size: .72rem;
  font-weight: 800; letter-spacing: .09em; color: var(--color-accent-600); margin-bottom: .35rem;
}
.cta-final-kicker { color: var(--color-accent-400); }
.pricing-smallprint { margin-top: .2rem; color: var(--color-text-muted); font-size: .72rem; line-height: 1.55; }

@media (min-width: 768px) {
  .territories-grid { grid-template-columns: repeat(2, 1fr); }
  .deliverables-grid { grid-template-columns: repeat(2, 1fr); }
  .bonuses-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .territories-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .territory-card { min-height: 165px; padding: 1.3rem; }
  .territory-card h3 { font-size: 1.05rem; }
  .territory-card p { font-size: .84rem; }
  .ai-transversal-layer { grid-template-columns: .75fr 1.8fr; align-items: center; padding: 1.1rem 1.35rem; }
  .deliverables-grid { grid-template-columns: repeat(3, 1fr); }
}


/* ==========================================================================
   12. INTEGRACIONES DE LANZAMIENTO: CENCEI + WHATSAPP
   ========================================================================== */
.footer-institutional {
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 145px;
  padding: .55rem .65rem;
  border-radius: .75rem;
  background: rgba(255, 255, 255, .96);
}

.cencei-logo {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.whatsapp-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 1200;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  max-width: calc(100vw - 2rem);
  padding: .7rem .85rem .7rem .7rem;
  border: 1px solid rgba(10, 37, 64, .12);
  border-radius: 999px;
  background: rgba(255, 255, 255, .97);
  color: var(--color-primary-900);
  box-shadow: 0 12px 32px rgba(7, 24, 43, .18);
  text-decoration: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-float:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(7, 24, 43, .23);
}

.whatsapp-mark {
  flex: 0 0 auto;
  width: 2.15rem;
  height: 2.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  font-family: var(--font-family-heading);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .02em;
}

.whatsapp-copy {
  display: grid;
  gap: .05rem;
  line-height: 1.15;
}

.whatsapp-copy strong {
  font-family: var(--font-family-heading);
  font-size: .8rem;
  font-weight: 700;
}

.whatsapp-copy small {
  color: var(--color-text-secondary);
  font-size: .68rem;
}

@media (max-width: 479px) {

  .cta-wa-link {
    font-size: .8rem;
  }

  .whatsapp-float {
    right: .75rem;
    bottom: .75rem;
    padding-right: .7rem;
  }
  .whatsapp-copy strong { font-size: .76rem; }
  .whatsapp-copy small { font-size: .64rem; }
}

@media (min-width: 768px) {
  .footer-institutional { width: 165px; }
  .whatsapp-float {
    right: 1.35rem;
    bottom: 1.35rem;
  }
}

/* ==========================================================================\n   13. LOGOTIPO OFICIAL COMERC.IA\n   ========================================================================== */
.comercia-header-logo {
  display: block;
  width: auto;
  height: 3.25rem;
  object-fit: contain;
}

.footer-comercia-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 172px;
  padding: .55rem .7rem;
  border-radius: .75rem;
  background: rgba(255, 255, 255, .97);
}

.comercia-footer-logo {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

@media (max-width: 767px) {
  .comercia-header-logo { height: 2.85rem; }
  .footer-comercia-logo-wrap { width: 155px; }
}


/* ==========================================================================
   14. MARCA INSTITUCIONAL: CENCEI EN PRIMERA POSICIÓN
   ========================================================================== */
.brand-lockup {
  display: flex;
  align-items: center;
  gap: .7rem;
  min-width: 0;
}

.header-cencei-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.header-cencei-logo {
  display: block;
  width: auto;
  height: 2.65rem;
  object-fit: contain;
}

.brand-separator {
  display: block;
  width: 1px;
  height: 2.35rem;
  background: rgba(15, 42, 74, .18);
}

.comercia-header-logo {
  height: 2.95rem;
}

.footer-brand-lockup {
  display: flex;
  align-items: center;
  gap: .8rem;
  flex-wrap: wrap;
}

.footer-cencei-logo-wrap,
.footer-comercia-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .5rem .6rem;
  border-radius: .7rem;
  background: rgba(255,255,255,.97);
}

.footer-cencei-logo-wrap { width: 155px; }
.footer-comercia-logo-wrap { width: 150px; }

.cencei-footer-logo,
.comercia-footer-logo {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.footer-brand-separator {
  display: block;
  width: 1px;
  height: 3.5rem;
  background: rgba(255,255,255,.16);
}

@media (max-width: 767px) {
  .brand-lockup { gap: .45rem; }
  .header-cencei-logo { height: 2.15rem; }
  .comercia-header-logo { height: 2.35rem; }
  .brand-separator { height: 1.9rem; }
  .footer-brand-lockup { gap: .55rem; }
  .footer-cencei-logo-wrap { width: 135px; }
  .footer-comercia-logo-wrap { width: 130px; }
  .footer-brand-separator { height: 3rem; }
}


/* ==========================================================================\n   15. CIERRE FINAL: RESPALDO DE MARCA SOBRE FONDO BLANCO\n   ========================================================================== */
.site-footer {
  background-color: #ffffff;
  color: var(--color-primary-950);
  border-top: 1px solid rgba(15, 42, 74, .10);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.footer-brand-lockup {
  align-items: center;
  gap: 1rem;
}

.footer-cencei-logo-wrap,
.footer-comercia-logo-wrap {
  width: 180px;
  height: 132px;
  padding: .7rem;
  box-sizing: border-box;
  border-radius: .8rem;
  background: #ffffff;
  border: 1px solid rgba(15, 42, 74, .12);
}

.cencei-footer-logo,
.comercia-footer-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer-brand-separator {
  height: 4.5rem;
  background: rgba(15, 42, 74, .20);
}

.footer-desc {
  color: #52657b;
  max-width: 520px;
}

.footer-links a {
  color: #52657b;
}

.footer-links a:hover {
  color: var(--color-primary-950);
}

.footer-bottom {
  border-top-color: rgba(15, 42, 74, .10);
}

.copyright {
  color: #6b7b8d;
}

@media (max-width: 767px) {
  .footer-brand-lockup {
    gap: .65rem;
    flex-wrap: nowrap;
  }
  .footer-cencei-logo-wrap,
  .footer-comercia-logo-wrap {
    width: 145px;
    height: 108px;
    padding: .55rem;
  }
  .footer-brand-separator {
    height: 3.5rem;
  }
}

@media (max-width: 380px) {
  .footer-brand-lockup {
    flex-wrap: wrap;
  }
  .footer-brand-separator {
    display: none;
  }
}

/* ==========================================================================
   AJUSTE FINAL DE RITMO VISUAL — SECCIONES INDEPENDIENTES
   ========================================================================== */
:root {
  --color-section-soft-blue: #E7EFF7;
  --color-section-soft-blue-border: #D6E2EE;
}

/* Los wrappers solo agrupan semánticamente; el color vive en cada sección. */
.chapter-soft,
.chapter-light {
  background: transparent;
  border-top: 0;
  border-bottom: 0;
}

/* Cada bloque funciona visualmente como una sección independiente. */
.section-problem {
  background-color: var(--color-section-soft-blue);
  border-top: 1px solid var(--color-section-soft-blue-border);
  border-bottom: 1px solid var(--color-section-soft-blue-border);
}

.section-transformation {
  background-color: var(--color-bg-main);
}

.section-how-it-works {
  background-color: var(--color-bg-main);
}

.section-curriculum {
  background-color: var(--color-section-soft-blue);
  border-top: 1px solid var(--color-section-soft-blue-border);
  border-bottom: 1px solid var(--color-section-soft-blue-border);
}

.section-deliverables {
  background-color: var(--color-bg-main);
}

.section-bonuses {
  background-color: var(--color-section-soft-blue);
  border-top: 1px solid var(--color-section-soft-blue-border);
  border-bottom: 1px solid var(--color-section-soft-blue-border);
}

/* Un poco más de separación perceptual entre capítulos consecutivos. */
.section-problem + .section-transformation,
.section-how-it-works + .section-curriculum,
.section-deliverables + .section-bonuses {
  margin-top: 0;
}