/* ========
================================
   SISTEMA DE DISEÑO PREMIUM - CLASE MUNDIAL
   Minimalista, Elegante, Eficiente
   Mobile-First Optimizado para UX/UI de Talla Mundial
   ======================================== */

:root {
  /* Colores principales - Sistema refinado */
  --ink: #273F4F;
  --flame: #FE7743;
  --ocean: #447D9B;
  --smoke: #F8F9FA;
  --ash: #6C757D;
  --pearl: #FFFFFF;
  
  /* Gradientes premium */
  --gradient-premium: linear-gradient(135deg, rgb(215, 242, 123) 0%, rgb(115, 156, 30) 100%);
  --gradient-subtle: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
  --gradient-dark: linear-gradient(135deg, #273F4F 0%, #447D9B 100%);
  
  /* Espaciado - Sistema 8pt Mobile-First */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-10: 5rem;
  
  /* Espaciado móvil optimizado */
  --mobile-space-xs: 0.75rem;  /* 12px */
  --mobile-space-sm: 1rem;     /* 16px */
  --mobile-space-md: 1.25rem;  /* 20px */
  --mobile-space-lg: 1.5rem;   /* 24px */
  --mobile-space-xl: 2rem;     /* 32px */
  --mobile-space-2xl: 2.5rem;  /* 40px */
  
  /* Tamaños de fuente móvil - Legibilidad óptima */
  --mobile-text-xs: 0.875rem;  /* 14px */
  --mobile-text-sm: 1rem;      /* 16px - Mínimo recomendado */
  --mobile-text-base: 1.125rem; /* 18px - Óptimo para lectura */
  --mobile-text-lg: 1.25rem;   /* 20px */
  --mobile-text-xl: 1.375rem;  /* 22px */
  --mobile-text-2xl: 1.5rem;   /* 24px */
  --mobile-text-3xl: 1.75rem;  /* 28px */
  --mobile-text-4xl: 2rem;     /* 32px */
  
  /* Tipografía refinada */
  --font-display: 'Krona One', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Line-heights optimizados para legibilidad premium */
  --lh-tight: 1.1;     /* Títulos grandes */
  --lh-snug: 1.25;     /* Títulos medianos */
  --lh-normal: 1.4;    /* Textos cortos */
  --lh-relaxed: 1.6;   /* Párrafos largos */
  --lh-loose: 1.7;     /* Contenido extenso */
  
  /* Sombras elegantes */
  --shadow-subtle: 0 1px 3px rgba(39, 63, 79, 0.04);
  --shadow-soft: 0 4px 6px rgba(39, 63, 79, 0.07);
  --shadow-medium: 0 10px 20px rgba(39, 63, 79, 0.08);
  --shadow-large: 0 20px 40px rgba(39, 63, 79, 0.10);
  --shadow-glow: 0 0 40px rgba(254, 119, 67, 0.15);
  
  /* Bordes refinados */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Animaciones fluidas */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   RESET Y BASE
   ======================================== */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
}

/* ========================================
   HEADER REFINADO
   ======================================== */
/* Header translúcido con efecto vidrio esmerilado */
header {
  position: relative;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-3) 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
}

header #menu {
  display: flex;
  align-items: center;
  margin: 0;
}

header #menu li {
  display: flex;
  align-items: center;
}

header.scrolled {
  box-shadow: var(--shadow-soft) !important;
}

/* Logo Time Hackers */
#logo-treebox {
  display: flex !important;
  align-items: center !important;
  height: 100% !important;
}

#logo-treebox a {
  text-decoration: none !important;
  display: flex !important;
  align-items: center !important;
}

.time-hackers-logo {
  position: relative !important;
}

.time-hackers-logo {
  display: flex !important;
  align-items: center !important;
}

.time-hackers-logo img {
  display: block !important;
  max-height: 52px !important;
  width: auto !important;
}

.time-hackers-logo::after {
  display: none !important;
}

.time-hackers-logo span {
  font-family: var(--font-display) !important;
  font-weight: 800 !important;
  font-size: 1.5rem !important;
  color: var(--ink) !important;
  letter-spacing: -0.03em !important;
  text-transform: uppercase !important;
  position: relative !important;
}

.time-hackers-logo::after {
  content: '' !important;
  position: absolute !important;
  bottom: -4px !important;
  left: 0 !important;
  width: 100% !important;
  height: 2px !important;
  background: var(--gradient-premium) !important;
  transform: scaleX(0) !important;
  transform-origin: left !important;
  transition: transform 0.3s var(--ease-out) !important;
}

.time-hackers-logo:hover::after {
  transform: scaleX(1) !important;
}

/* Botones CTA - Diseño premium con gradiente */

.button,
a.button,
button.button,
.button.header-cta,
#activate-potential-btn {
  background: #021D12 !important;
  color: #fff !important;
  padding: 1rem 2.5rem !important;
  border-radius: var(--radius-md) !important;
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  font-size: 1rem !important;
  letter-spacing: 0.02em !important;
  transition: all 0.4s var(--ease-out) !important;
  border: none !important;
  border-bottom: 3px solid #021D12 !important;
  position: relative !important;
  overflow: hidden !important;
  box-shadow: 0 8px 24px rgba(2, 29, 18, 0.32) !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  text-decoration: none !important;
  cursor: pointer !important;
}



/* Efecto shine en todos los botones */
.button::before,
a.button::before,
button.button::before,
.button.header-cta::before {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: -100% !important;
  width: 100% !important;
  height: 100% !important;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent) !important;
  transition: left 0.6s var(--ease-out) !important;
}

/* Hover state para todos los botones */
.button:hover,
a.button:hover,
button.button:hover,
.button.header-cta:hover {
  transform: translateY(-2px) scale(1.02) !important;
  box-shadow: 0 12px 32px rgba(2, 29, 18, 0.4) !important;
  color: #fff !important;
}


.button:hover::before,
a.button:hover::before,
button.button:hover::before,
.button.header-cta:hover::before {
  left: 100% !important;
}

/* Ajuste específico para botón del header */
header .button.header-cta,
header #menu li a.button.header-cta {
  padding: 0.75rem 2rem !important;
  font-size: 0.9375rem !important;
}

/* ========================================
   TIPOGRAFÍA ELEGANTE
   ======================================== */

/* Títulos con Krona One - Line-heights optimizados */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 400;
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: var(--lh-tight); /* 1.1 para máximo impacto */
}

h2 {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  line-height: var(--lh-snug); /* 1.25 para balance perfecto */
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: var(--lh-snug); /* 1.25 para subtítulos */
}

h4, h5, h6 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  line-height: var(--lh-normal); /* 1.4 para títulos menores */
}

/* Párrafos optimizados para lectura extensa */
p {
  font-family: var(--font-body);
  color: var(--ash);
  font-size: 1rem;
  line-height: var(--lh-relaxed); /* 1.6 para párrafos estándar */
  margin-bottom: var(--space-3);
}

/* Párrafos largos con line-height más generoso */
.long-text, .author-bio, .card-content p {
  line-height: var(--lh-loose); /* 1.7 para contenido extenso */
}

/* Textos cortos con line-height compacto */
.short-text, .button, .cta-text {
  line-height: var(--lh-normal); /* 1.4 para textos cortos */
}

strong {
  color: var(--ink) !important;
  font-weight: 600 !important;
}

/* ========================================
   BOTONES PREMIUM
   ======================================== */
.button,
#get-chapter-btn,
button[type="submit"] {
  background: #021D12 !important;
  color: #fff !important;
  padding: 1rem 2.5rem !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  font-size: 1rem !important;
  letter-spacing: 0.02em !important;
  transition: all 0.4s var(--ease-out) !important;
  cursor: pointer !important;
  position: relative !important;
  overflow: hidden !important;
  border-bottom: 3px solid #021D12 !important;
  box-shadow: 0 8px 24px rgba(2, 29, 18, 0.32) !important;
}


.button::before {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  background: rgba(255, 255, 255, 0.2) !important;
  transform: translateX(-100%) !important;
  transition: transform 0.6s var(--ease-out) !important;
}

.button:hover {
  transform: translateY(-2px) scale(1.02) !important;
  box-shadow: 0 12px 32px rgba(2, 29, 18, 0.4) !important;
  color: #fff !important;
}

.button:hover::before {
  transform: translateX(0) !important;
}

/* ========================================
   SECCIÓN PREMIUM: LA ESPIRAL INFINITA
   ======================================== */
.cards-section {
  background: var(--gradient-subtle) !important;
  padding: var(--space-10) 0 !important;
  position: relative !important;
}

.section-intro {
  max-width: 800px !important;
  margin-bottom: var(--space-6) !important;
}

.section-intro h2 {
  color: var(--ink) !important;
  font-size: 2.75rem !important;
  font-weight: 800 !important;
  line-height: 1.1 !important;
  margin-bottom: var(--space-4) !important;
  letter-spacing: -0.03em !important;
}

.section-intro p {
  font-size: 1.125rem !important;
  color: var(--ash) !important;
  line-height: 1.8 !important;
  margin-bottom: var(--space-3) !important;
}

.section-intro p:last-child {
  margin-bottom: 0 !important;
}

.section-intro strong {
  color: #0B8246 !important;
  font-weight: 700 !important;
}

/* Cards premium */
.top-cards-row {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: var(--space-4) !important;
  margin-top: 6rem;
  margin-bottom: var(--space-6) !important;
  align-items: center !important;
}

.testimonial-card {
  background: var(--pearl) !important;
  border-radius: var(--radius-lg) !important;
  padding: var(--space-4) !important;
  box-shadow: var(--shadow-soft) !important;
  position: relative !important;
  overflow: hidden !important;
  transition: all 0.4s var(--ease-out) !important;
}

/* Pseudo-elemento ::before eliminado - se veía horrible */

.testimonial-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-large) !important;
}

.testimonial-rating {
  margin-bottom: var(--space-2) !important;
}

.testimonial-rating i {
  color: var(--flame) !important;
  font-size: 1.125rem !important;
  margin-right: 0.125rem !important;
}

.testimonial-text {
  color: var(--ink) !important;
  font-size: 1.0625rem !important;
  line-height: 1.7 !important;
  font-style: normal !important;
  margin: var(--space-3) 0 !important;
  position: relative !important;
  z-index: 1 !important;
}

.testimonial-author {
  display: flex !important;
  align-items: center !important;
  gap: var(--space-2) !important;
  margin-top: var(--space-3) !important;
}

.author-name {
  color: var(--ink) !important;
  font-weight: 600 !important;
  font-size: 1rem !important;
  margin: 0 !important;
}

.preview-card {
  background: var(--pearl) !important;
  border-radius: var(--radius-lg) !important;
  padding: var(--space-4) !important;
  box-shadow: var(--shadow-soft) !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: space-between !important;
  transition: all 0.4s var(--ease-out) !important;
}

.preview-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-large) !important;
}

.preview-title {
  color: var(--ink) !important;
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  line-height: var(--lh-snug); /* 1.25 para título de preview */
  margin-bottom: var(--space-3) !important;
}

.preview-text {
  color: var(--ash) !important;
  font-size: 1rem !important;
  line-height: var(--lh-loose); /* 1.7 para contenido de preview */
  margin-bottom: var(--space-4) !important;
}

/* ========================================
   TABLA DE PROMPTS - DISEÑO PREMIUM
   ======================================== */
.toc-container {
  background: var(--pearl) !important;
  border-radius: var(--radius-xl) !important;
  padding: var(--space-6) !important;
  box-shadow: var(--shadow-medium) !important;
  position: relative !important;
  overflow: hidden !important;
}

.toc-container::before {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  height: 4px !important;
  background: var(--gradient-premium) !important;
}

.toc-header {
  text-align: center !important;
  margin-bottom: var(--space-5) !important;
  position: relative !important;
}

.toc-header h2 {
  color: var(--ink) !important;
  font-size: 2.25rem !important;
  font-weight: 700 !important;
  margin-bottom: 0 !important;
  position: relative !important;
  display: block !important;
  text-align: center !important;
  width: 100% !important;
}

/* Línea decorativa del TOC removida por solicitud del usuario */

.toc-grid {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr) !important;
  gap: var(--space-3) !important;
  margin-top: var(--space-5) !important;
}

.toc-item {
  background: var(--smoke) !important;
  border-radius: var(--radius-md) !important;
  padding: var(--space-3) !important;
  position: relative !important;
  border: 2px solid transparent !important;
}

.toc-item::before {
  content: '' !important;
  position: absolute !important;
  left: 0 !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  width: 4px !important;
  height: 70% !important;
  background: var(--gradient-premium) !important;
  border-radius: 0 2px 2px 0 !important;
  opacity: 0 !important;
  transition: opacity 0.3s var(--ease-out) !important;
}

/* Efectos hover eliminados - no son botones */

.toc-chapter-number {
  color: #0B8246 !important;
  font-size: 0.75rem !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.1em !important;
  margin-bottom: var(--space-1) !important;
}

.toc-chapter-title {
  color: var(--ink) !important;
  font-size: 1.125rem !important;
  font-weight: 600 !important;
  line-height: 1.4 !important;
  margin: 0 !important;
}

/* ========================================
   SECCIÓN AUTOR - MINIMALISTA
   ========================================/* Sección de Autor - Diseño premium con fondo blanco */
.authors-section {
  padding: var(--space-9) 0;
  background: var(--pearl);
  position: relative;
}

.authors-section h2 {
  text-align: center;
  margin-bottom: var(--space-7);
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  font-family: var(--font-display);
}

/* Grid del autor - Diseño de clase mundial */
.authors-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-6);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(254, 119, 67, 0.02) 100%);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(39, 63, 79, 0.06);
  box-shadow: 0 8px 32px rgba(39, 63, 79, 0.08);
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.authors-grid::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(254, 119, 67, 0.03), transparent);
  transition: left 0.6s var(--ease-out);
}

.authors-grid:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(39, 63, 79, 0.12);
}

.authors-grid:hover::before {
  left: 100%;
}

@media (min-width: 768px) {
  .authors-grid {
    flex-direction: row;
    gap: var(--space-10);
    padding: var(--space-8);
    align-items: center;
    text-align: left;
  }
}

/* Foto del autor - Rediseñada */
.author-photo {
  position: relative;
  flex-shrink: 0;
  /* Tamaño fijo de 320px como solicitado */
  width: 320px;
  height: 320px;
  /* Sin border-radius circular */
  border-radius: 16px;
  overflow: hidden;
}

.author-photo::before {
  /* Desactivado para evitar el óvalo/halo que deforma la composición */
  content: none;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--flame) 0%, rgba(254, 119, 67, 0.6) 100%);
  /* Mantener por compatibilidad si se reactiva */
  border-radius: 16px;
  z-index: -1;
  opacity: 0.1;
  transition: all 0.3s var(--ease-out);
}

.author-image {
  display: block;
  width: 100%;
  height: auto;
  /* Hereda el radio del contenedor para esquinas suaves coherentes */
  border-radius: inherit;
  object-fit: cover;
  /* Enfocar centrado para no cortar la cabeza */
  object-position: center center;
  /* Quitamos el borde para que se integre con el contenedor */
  border: 0;
  box-shadow: 0 12px 40px rgba(39, 63, 79, 0.15), 0 4px 12px rgba(39, 63, 79, 0.1);
  transition: all 0.4s var(--ease-out);
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  /* En desktop: 2 columnas (foto izquierda, texto derecha) */
  .authors-grid {
    display: grid;
    grid-template-columns: minmax(280px, 360px) 1fr;
    align-items: center;
    gap: var(--space-12);
    padding: var(--space-8);
    text-align: left;
  }

  .author-photo {
    max-width: 360px;
    /* Asegurar que la foto mantenga su proporción sin estirarse */
    justify-self: start;
  }
  
  .author-card {
    /* Dar más espacio al texto y alinearlo bien */
    padding-left: var(--space-4);
  }
}

/* Eliminar efectos hover que pueden causar problemas visuales */
.author-image:hover {
  /* Mantener sutil si acaso */
  transform: none;
  box-shadow: 0 12px 40px rgba(39, 63, 79, 0.15), 0 4px 12px rgba(39, 63, 79, 0.1);
}

.author-photo:hover::before {
  /* Desactivado completamente */
  opacity: 0;
  transform: none;
}

/* Contenido del autor - Rediseñado */
.author-card {
  text-align: center;
  flex: 1;
  max-width: 100%;
}

@media (min-width: 768px) {
  .author-card {
    text-align: left;
    max-width: none;
  }
}

.author-name {
  color: var(--ink) !important;
  font-size: 2.25rem !important; /* Más grande que el clamp anterior */
  font-weight: 700 !important; /* Más bold */
  font-family: 'Montserrat', sans-serif !important;
  margin-bottom: 1.5rem !important; /* Más espacio */
  padding-bottom: 0.5rem !important;
  letter-spacing: -0.01em !important;
  position: relative !important;
  text-align: left !important;
}

/* Línea decorativa removida por solicitud del usuario */

.author-bio {
  color: var(--ash);
  font-size: 1.125rem;
  line-height: var(--lh-relaxed);
  margin: 0;
  max-width: 55ch;
  font-weight: 400;
  text-align: left;
}

/* ========================================
   3. HERO SECTION - WORLD CLASS REFINEMENTS
   ======================================== */

/* Hero container con gradiente sutil */
.hero-section {
  position: relative;
  background: #FD7B47 !important;
  
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(254, 119, 67, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

/* Mejoras en la imagen del ebook */
.hero-section img {
  transition: all 0.6s var(--ease-out);
  filter: drop-shadow(0 20px 40px rgba(39, 63, 79, 0.15));
  border-radius: var(--radius-md);
  margin-top: 0;
  margin-bottom: 0;
}

.hero-section img:hover {
  transform: translateY(-8px) scale(1.02);
  filter: drop-shadow(0 30px 60px rgba(39, 63, 79, 0.2));
}

/* Asegurar que no haya margins negativos en el contenedor de la imagen */
.hero-section .columns img {
  margin: 0 auto;
  display: block;
}

/* Refinamientos tipográficos en hero */
.hero-section h1 {
  position: relative;
  z-index: 2;
  color: #FFFFFF;
  margin-top: 1em;
}



/* Línea decorativa del hero removida por solicitud del usuario */

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Mejora en el párrafo del hero - Legibilidad premium */
.hero-section p {
  position: relative;
  z-index: 2;
  line-height: var(--lh-loose); /* 1.7 para lectura cómoda */
  color: var(--ash);
  font-size: 1.125rem; /* Ligeramente más grande para impacto */
  max-width: 65ch; /* Ancho óptimo para lectura */
  color: #fff;
  font-weight: 500;
}

.hero-section strong {
  color: #fff !important;
  font-weight: bolder;
}

/* Botón del hero con mejoras */
.hero-section .button {
  position: relative;
  z-index: 2;
  margin-top: var(--space-5);
  color: #FFFFFF;
  background: #000 !important;
}

/* ========================================
   CTA FINAL - DISEÑO IMPACTANTE
   ========================================/* Sección Final CTA - Diseño Minimalista de Clase Mundial */
.final-cta-section {
  position: relative;
  padding: var(--space-10) 0;
  background: var(--ink);
  overflow: hidden;
}

/* Patrón geométrico sutil de fondo */
.final-cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(254, 119, 67, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(68, 125, 155, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

/* Elementos de fondo removidos por solicitud del usuario */
.background-aurora-1, .background-aurora-2 {
  display: none !important;
}

/* Tarjeta principal - Layout centrado según wireframe */
.final-cta-card {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-9) var(--space-6);
  max-width: 900px;
  margin: var(--space-6) auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  animation: slideInUp 0.8s var(--ease-out) forwards;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  text-align: center;
}

@media (min-width: 768px) {
  .final-cta-card {
    padding: var(--space-10) var(--space-8);
    gap: var(--space-0);
    margin: var(--space-8) auto;
    max-width: 1000px;
  }
}

/* Eliminar estilos de card-content ya que no existe */

/* Título con contraste perfecto y legibilidad optimizada */
.final-cta-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3.5vw, 2.25rem);
  color: var(--pearl);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-7);
  font-weight: 400;
  letter-spacing: -0.02em;
  max-width: 100%;
  padding: 0 var(--space-6);
  text-align: center !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

@media (min-width: 768px) {
  .final-cta-card h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    margin-bottom: var(--space-8);
    max-width: 85%;
    padding: 0 var(--space-2);
  }
}

.final-cta-card .highlight-word {
  font-style: normal;
  color: var(--flame);
  font-weight: 400;
  position: relative;
}

/* Líneas decorativas removidas por solicitud del usuario */

/* Párrafo con legibilidad optimizada */
.final-cta-card p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  line-height: var(--lh-relaxed);
  max-width: 60ch;
  margin: 0 auto;
  padding: 0 var(--space-4);
  margin-top: var(--space-5);
  text-align: center !important;
}

@media (min-width: 768px) {
  .final-cta-card p {
    max-width: 65ch;
    padding: 0 var(--space-2);
    margin-top: var(--space-6);
  }
}

/* Área de acción - Centrada */
.final-cta-card .card-action {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .final-cta-card .card-action {
    margin-bottom: var(--space-7);
  }
}

.final-cta-card .card-action .button {
  background: var(--flame);
  color: var(--pearl);
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  transition: all 0.3s var(--ease-out);
  box-shadow: 0 4px 20px rgba(254, 119, 67, 0.3);
  position: relative;
  overflow: hidden;
}

.final-cta-card .card-action .button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s var(--ease-out);
}

.final-cta-card .card-action .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(254, 119, 67, 0.4);
  background: #ff8a5b;
}

.final-cta-card .card-action .button:hover::before {
  left: 100%;
}

.card-action {
  margin-top: var(--space-4) !important;
}

/* ========================================
   MODAL - DISEÑO LIMPIO
   ======================================== */
#Modal .modal-content {
  border-radius: var(--radius-xl) !important;
  overflow: hidden !important;
  box-shadow: 0 25px 50px rgba(39, 63, 79, 0.15) !important;
}

#Modal .modal-left {
  padding: var(--space-6) !important;
  background: var(--pearl) !important;
}

#Modal .modal-left h2 {
  color: var(--ink) !important;
  font-size: 2rem !important;
  font-weight: 700 !important;
  margin-bottom: var(--space-2) !important;
}

#Modal .modal-left p {
  color: var(--ash) !important;
  font-size: 1.0625rem !important;
  margin-bottom: var(--space-4) !important;
}

#Modal .form-fields .field input {
  background: var(--smoke) !important;
  border: 2px solid transparent !important;
  border-radius: var(--radius-md) !important;
  padding: 1rem 1.25rem !important;
  font-size: 1rem !important;
  color: var(--ink) !important;
  transition: all 0.3s var(--ease-out) !important;
}

#Modal .form-fields .field input:focus {
  background: var(--pearl) !important;
  border-color: var(--ocean) !important;
  outline: none !important;
  box-shadow: 0 0 0 4px rgba(68, 125, 155, 0.1) !important;
}

#Modal .form-fields .field input::placeholder {
  color: var(--ash) !important;
  opacity: 0.7 !important;
}

#Modal .privacy-notice {
  color: var(--ash) !important;
  font-size: 0.875rem !important;
  text-align: center !important;
  margin-top: var(--space-3) !important;
}

/* ========================================
   VISTA PREVIA DEL CONTENIDO INTERNO
   ======================================== */

/* Card de vista previa del contenido - Bento Grid Style */
.preview-card {
  background: var(--pearl) !important;
  border-radius: var(--radius-lg) !important;
  padding: var(--space-4) !important;
  box-shadow: var(--shadow-soft) !important;
  border: 1px solid rgba(39, 63, 79, 0.08) !important;
  transition: all 0.3s var(--ease-out) !important;
  margin-bottom: var(--space-6) !important;
  height: 100% !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
  min-height: 380px !important;
}

.preview-card:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-premium) !important;
}

/* Contenedor de la imagen de vista previa - Bento Grid */
.preview-image-container {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden !important;
  background: linear-gradient(135deg, var(--smoke) 0%, rgba(254, 119, 67, 0.02) 100%) !important;
  padding: var(--space-3) !important;
  border: 1px solid rgba(39, 63, 79, 0.06) !important;
  width: 100% !important;
  height: 100% !important;
  flex: 1 !important;
}

.preview-image {
  width: 100% !important;
  height: auto !important;
  max-width: 100% !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: 0 8px 24px rgba(39, 63, 79, 0.12), 0 2px 6px rgba(39, 63, 79, 0.08) !important;
  transition: all 0.3s var(--ease-out) !important;
  border: 1px solid rgba(255, 255, 255, 0.6) !important;
  object-fit: cover !important;
}

.preview-image:hover {
  /* Zoom effect removed per user request */
  box-shadow: 0 12px 32px rgba(39, 63, 79, 0.16), 0 4px 12px rgba(39, 63, 79, 0.12) !important;
}

@media (min-width: 768px) {
  .preview-card {
    padding: var(--space-5) !important;
    min-height: 420px !important;
  }
  
  .preview-image-container {
    padding: var(--space-4) !important;
  }
}

/* ========================================
   CORRECCIÓN DE CONFLICTOS CSS
   ======================================== */

/* Sobrescribir conflictos de authors.css */
.authors-section {
  background: var(--pearl) !important;
  padding: var(--space-6) 0 var(--space-9) 0 !important;
  padding-bottom: 6rem !important;
  position: relative !important;
  text-align: center !important;
  overflow: visible !important;
}

@media (min-width: 768px) {
  .authors-section {
    padding: var(--space-4) 0 var(--space-10) 0 !important;
  }
}

.authors-section h2 {
  color: var(--ink) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(2rem, 4vw, 2.75rem) !important;
  font-weight: 400 !important;
  text-align: center !important;
  margin-bottom: var(--space-7) !important;
}

.authors-section p {
  color: var(--ash) !important;
}

/* Sobrescribir conflictos de table-of-contents.css */
#table-of-contents {
  background: var(--smoke) !important;
  padding: var(--space-8) 0 !important;
}

#table-of-contents .toc-card {
  background: var(--pearl) !important;
  border: 1px solid rgba(39, 63, 79, 0.08) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-medium) !important;
  padding: var(--space-6) !important;
}

#table-of-contents .toc-header h2 {
  color: var(--ink) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(1.75rem, 3vw, 2.25rem) !important;
  font-weight: 400 !important;
  line-height: var(--lh-snug) !important;
  text-align: center !important;
  margin-bottom: var(--space-5) !important;
}

/* Sobrescribir conflictos de testimonial.css */
.cards-section {
  background: var(--pearl) !important;
  padding: var(--space-8) 0 !important;
  padding-bottom: 6rem !important;
}

.testimonial-card {
  background: var(--pearl) !important;
  border: 1px solid rgba(39, 63, 79, 0.08) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-medium) !important;
  padding: var(--space-6) !important;
}

.testimonial-text {
  color: var(--ash) !important;
  font-size: 1.125rem !important;
  line-height: var(--lh-loose) !important;
  font-family: var(--font-body) !important;
}

/* Divisor del ebook - imagen natural sin efectos */
.ebook-divider {
  position: relative !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  margin: var(--space-6) auto var(--space-7) auto !important;
  width: 100% !important;
  max-width: 600px !important;
  z-index: 10 !important;
}

@media (min-width: 768px) {
  .ebook-divider {
    max-width: 800px !important;
    margin: var(--space-8) auto var(--space-9) auto !important;
  }
}

.ebook-divider img {
  width: 100% !important;
  height: auto !important;
  display: block !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  transform: none !important;
  transition: none !important;
  filter: none !important;
  -webkit-filter: none !important;
}

/* Sobrescribir cualquier estilo de ebook.css */
.authors-section .ebook-divider img,
section .ebook-divider img {
  box-shadow: none !important;
  transform: none !important;
  border-radius: 0 !important;
  filter: none !important;
}

/* Correcciones adicionales para consistencia */

/* Asegurar que todos los botones mantengan el estilo premium */
.button, .btn, input[type="submit"] {
  background: #021D12 !important;
  color: #fff !important;
  border: none !important;
  border-bottom: 3px solid #021D12 !important;
  border-radius: var(--radius-md) !important;
  padding: 1rem 2rem !important;
  font-family: var(--font-body) !important;
  font-weight: 600 !important;
  font-size: 1rem !important;
  line-height: var(--lh-normal) !important;
  text-decoration: none !important;
  display: inline-block !important;
  transition: all 0.3s var(--ease-out) !important;
  cursor: pointer !important;
  box-shadow: 0 6px 22px rgba(2, 29, 18, 0.3) !important;
}


.button:hover, .btn:hover, input[type="submit"]:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 12px 32px rgba(2, 29, 18, 0.4) !important;
  color: #fff !important;
}


/* Correcciones para el modal */
.reveal {
  background: var(--pearl) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-large) !important;
  border: none !important;
}

.reveal h2 {
  color: var(--ink) !important;
  font-family: var(--font-display) !important;
  font-weight: 400 !important;
  line-height: var(--lh-snug) !important;
  text-align: center !important;
}

.reveal p {
  color: var(--ash) !important;
  line-height: var(--lh-relaxed) !important;
  font-family: var(--font-body) !important;
}

/* Correcciones para inputs del formulario */
.form-control, input[type="text"], input[type="email"], input[type="tel"] {
  border: 2px solid rgba(39, 63, 79, 0.1) !important;
  border-radius: var(--radius-md) !important;
  padding: 1rem !important;
  font-family: var(--font-body) !important;
  font-size: 1rem !important;
  line-height: var(--lh-normal) !important;
  background: var(--pearl) !important;
  color: var(--ink) !important;
  transition: border-color 0.3s var(--ease-out) !important;
}

.form-control:focus, input[type="text"]:focus, input[type="email"]:focus, input[type="tel"]:focus {
  border-color: var(--flame) !important;
  outline: none !important;
  box-shadow: 0 0 0 3px rgba(254, 119, 67, 0.1) !important;
}

/* ========================================
   ANIMACIONES PREMIUM
   ======================================== */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.3;
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.testimonial-card,
.preview-card,
.toc-item {
  animation: slideInUp 0.8s var(--ease-out) forwards !important;
}

.toc-item:nth-child(1) { animation-delay: 0.1s !important; }
.toc-item:nth-child(2) { animation-delay: 0.2s !important; }
.toc-item:nth-child(3) { animation-delay: 0.3s !important; }
.toc-item:nth-child(4) { animation-delay: 0.4s !important; }
.toc-item:nth-child(5) { animation-delay: 0.5s !important; }

/* ========================================
   OPTIMIZACIÓN MÓVIL - TALLA MUNDIAL
   Mejores prácticas UX/UI para dispositivos móviles
   ======================================== */

/* Base móvil - Todos los elementos */
@media (max-width: 768px) {
  
  /* Contenedores principales - Espaciado optimizado */
  .container {
    padding-left: var(--mobile-space-xs) !important;
    padding-right: var(--mobile-space-xs) !important;
  }
  
  /* Secciones - Padding vertical reducido pero respiración adecuada */
  .hero-section,
  .cards-section,
  .authors-section,
  .final-cta-section {
    padding-top: var(--mobile-space-2xl) !important;
    padding-bottom: var(--mobile-space-2xl) !important;
  }
  
  /* Títulos principales - Tamaño legible sin ser abrumador */
  h1, .hero-title {
    font-size: var(--mobile-text-4xl) !important;
    line-height: 1.2 !important;
    margin-bottom: var(--mobile-space-lg) !important;
    padding: 0 !important;
  }
  
  h2 {
    font-size: var(--mobile-text-2xl) !important;
    line-height: 1.25 !important;
    margin-bottom: var(--mobile-space-md) !important;
    padding: 0 !important;
  }
  
  h3 {
    font-size: var(--mobile-text-xl) !important;
    line-height: 1.3 !important;
    margin-bottom: var(--mobile-space-sm) !important;
  }
  
  /* Párrafos - Legibilidad óptima */
  p, .testimonial-text {
    font-size: var(--mobile-text-base) !important;
    line-height: 1.6 !important;
    margin-bottom: var(--mobile-space-md) !important;
    padding: 0 !important;
  }
  
  /* Botones - Área táctil mínima 44px */
  .button, 
  .btn,
  button {
    min-height: 44px !important;
    padding: var(--mobile-space-xs) var(--mobile-space-lg) !important;
    font-size: var(--mobile-text-sm) !important;
    border-radius: var(--radius-md) !important;
    margin: var(--mobile-space-xs) 0 !important;
  }
  
  /* Cards - Espaciado interno optimizado */
  .testimonial-card,
  .preview-card {
    padding: var(--mobile-space-lg) !important;
    margin-bottom: var(--mobile-space-md) !important;
    border-radius: var(--radius-lg) !important;
  }
  
  /* TOC items - padding más compacto */
  .toc-item {
    padding: var(--mobile-space-md) !important;
    margin-bottom: var(--mobile-space-sm) !important;
    border-radius: var(--radius-lg) !important;
  }
  
  /* Tabla de contenidos - Mejor legibilidad */
  .toc-chapter-title {
    font-size: var(--mobile-text-lg) !important;
    line-height: 1.4 !important;
    margin-bottom: var(--mobile-space-xs) !important;
  }
  
  .toc-chapter-number {
    font-size: var(--mobile-text-sm) !important;
    margin-bottom: var(--mobile-space-xs) !important;
  }
  
  /* TOC container - padding cómodo en móvil */
  .toc-container {
    padding: var(--mobile-space-xl) var(--mobile-space-lg) !important;
    border-radius: var(--radius-lg) !important;
  }
  
  /* TOC layout - compacción de espacios internos */
  .toc-grid {
    gap: var(--mobile-space-sm) !important;
  }
  
  .toc-header {
    margin-bottom: var(--mobile-space-md) !important;
  }
  
  /* Imágenes - Responsive y optimizadas */
  img {
    max-width: 100% !important;
    height: auto !important;
    border-radius: var(--radius-md) !important;
  }
  
  /* Foto del autor - Tamaño móvil apropiado */
  .author-photo {
    width: 240px !important;
    height: 300px !important;
    margin: 0 auto var(--mobile-space-lg) auto !important;
  }
  
  /* CTA Final - Espaciado móvil compacto */
  .final-cta-card {
    margin: var(--mobile-space-sm) var(--mobile-space-xs) !important;
    padding: var(--mobile-space-lg) var(--mobile-space-md) !important;
    gap: var(--mobile-space-sm) !important;
  }
  
  .final-cta-card h2 {
    font-size: var(--mobile-text-2xl) !important;
    margin-bottom: var(--mobile-space-sm) !important;
    padding: 0 !important;
  }
  
  /* Author section: H2 un poco más pequeño en móvil */
  .authors-section h2 {
    font-size: var(--mobile-text-xl) !important;
    margin-bottom: var(--mobile-space-md) !important;
  }
  
  /* Botón principal: apenas más pequeño en móvil */
  #activate-potential-btn {
    font-size: 0.95rem !important; /* anula 1.2em de ebook.css en móviles */
  }
  
  /* Final CTA: más padding de sección, menos espacio entre elementos */
  .final-cta-section {
    padding-top: calc(var(--mobile-space-2xl) + var(--mobile-space-sm)) !important;
    padding-bottom: calc(var(--mobile-space-2xl) + var(--mobile-space-sm)) !important;
  }
  
  .final-cta-card .card-action {
    margin-top: var(--mobile-space-xs) !important;
    margin-bottom: var(--mobile-space-xs) !important;
  }
  
  /* Modal title - smaller on mobile */
  #Modal .modal-left h2 {
    font-size: var(--mobile-text-xl) !important;
    line-height: 1.25 !important;
    margin-bottom: var(--mobile-space-sm) !important;
  }
  
  .final-cta-card p {
    font-size: var(--mobile-text-base) !important;
    margin-top: var(--mobile-space-sm) !important;
    padding: 0 !important;
  }
  
  /* Header - Navegación táctil optimizada */
  header {
    padding: var(--mobile-space-sm) 0 !important;
  }
  
  .header-cta {
    padding: var(--mobile-space-xs) var(--mobile-space-md) !important;
    font-size: var(--mobile-text-sm) !important;
  }
  
  /* Testimonial - Autor más compacto */
  .testimonial-author-name {
    font-size: var(--mobile-text-xs) !important;
    margin: var(--mobile-space-xs) 0 !important;
  }
  
  .testimonial-avatar {
    width: 60px !important;
    height: 60px !important;
    margin-bottom: var(--mobile-space-sm) !important;
  }
  
  /* Ocultar narrativo introductorio en móvil */
  .section-intro {
    display: none !important;
  }
  
  .top-cards-row {
    gap: var(--mobile-space-lg) !important;
    margin-bottom: var(--mobile-space-xl) !important;
  }
  
  /* Animaciones suaves para móvil */
  * {
    transition: all 0.2s ease !important;
  }
  
  /* Mejoras de accesibilidad táctil */
  .toc-item,
  .testimonial-card,
  .preview-card {
    touch-action: manipulation !important;
  }
  
  /* Optimización de scroll */
  .cards-section {
    padding-bottom: var(--mobile-space-2xl) !important;
  }
  
  .authors-section {
    padding-bottom: var(--mobile-space-2xl) !important;
  }
}

/* Móvil pequeño - Ajustes adicionales */
@media (max-width: 480px) {
  
  h1, .hero-title {
    font-size: var(--mobile-text-3xl) !important;
  }
  
  h2 {
    font-size: var(--mobile-text-xl) !important;
    line-height: 1.25 !important;
    margin-bottom: var(--mobile-space-md) !important;
    padding: 0 !important;
  }
  
  .container {
    padding-left: var(--mobile-space-xs) !important;
    padding-right: var(--mobile-space-xs) !important;
  }
  
  .final-cta-card {
    margin: var(--mobile-space-xs) var(--mobile-space-xs) !important;
    padding: var(--mobile-space-md) var(--mobile-space-sm) !important;
  }
  
  .final-cta-card h2 {
    font-size: var(--mobile-text-xl) !important;
  }
  
  /* Author section (small): mantener H2 compacto */
  .authors-section h2 {
    font-size: var(--mobile-text-xl) !important;
  }
  
  /* Botón principal (small): muy ligeramente más pequeño */
  #activate-potential-btn {
    font-size: 0.9rem !important;
  }
  
  /* Final CTA small: mantener sección con buen aire y elementos compactos */
  .final-cta-section {
    padding-top: calc(var(--mobile-space-2xl) + var(--mobile-space-xs)) !important;
    padding-bottom: calc(var(--mobile-space-2xl) + var(--mobile-space-xs)) !important;
  }
  
  .final-cta-card .card-action {
    margin-top: var(--mobile-space-xs) !important;
    margin-bottom: var(--mobile-space-xs) !important;
  }
  
  /* Modal title - smaller on small mobile */
  #Modal .modal-left h2 {
    font-size: var(--mobile-text-lg) !important;
  }
  
  .author-photo {
    width: 200px !important;
    height: 250px !important;
  }
  
  /* TOC container - padding cómodo en móvil pequeño */
  .toc-container {
    padding: var(--mobile-space-lg) var(--mobile-space-md) !important;
  }
  
  /* Authors - compactación en móvil pequeño (≤480px) */
  .authors-grid {
    padding: var(--mobile-space-md) var(--mobile-space-sm) !important;
    gap: var(--mobile-space-md) !important;
    border-radius: var(--radius-lg) !important;
    box-sizing: border-box !important;
  }
  
  .author-name {
    font-size: var(--mobile-text-2xl) !important;
    margin-bottom: var(--mobile-space-sm) !important;
  }
  
  .author-bio {
    font-size: var(--mobile-text-base) !important;
    max-width: 100% !important;
  }

  /* Refuerzo para dispositivos muy estrechos (≤360px) */
  @media (max-width: 360px) {
    .authors-grid {
      padding: var(--mobile-space-sm) var(--mobile-space-xs) !important;
      gap: var(--mobile-space-sm) !important;
    }
    .author-photo {
      width: 180px !important;
      height: 220px !important;
    }
    .author-name {
      font-size: var(--mobile-text-xl) !important;
    }
  }
  
  /* TOC items - aún más compacto en móvil pequeño */
  .toc-item {
    padding: var(--mobile-space-sm) !important;
  }
  
  /* TOC grid - gap reducido en móvil pequeño */
  .toc-grid {
    gap: var(--mobile-space-xs) !important;
  }
}

/* ========================================
   RESPONSIVE - MOBILE FIRST
   ======================================== */
@media (max-width: 768px) {
  .top-cards-row {
    grid-template-columns: 1fr !important;
  }
  
  .toc-grid {
    grid-template-columns: 1fr !important;
  }
  
  .section-intro h2 {
    font-size: 2rem !important;
  }
  
  .toc-header h2 {
    font-size: var(--mobile-text-xl) !important;
  }
  
  .free-chapter-card h2 {
    font-size: var(--mobile-text-xl) !important;
  }
  
  #Modal .modal-content {
    flex-direction: column !important;
  }
  
  #Modal .modal-right {
    display: none !important;
  }
}