:root {
    --primary: #4361ee;
    --primary-light: #4895ef;
    --primary-dark: #3a0ca3;
    --secondary: #f72585;
    --accent: #ffd60a;
    --success: #06d6a0;
    --warning: #f77f00;
    --danger: #e63946;
    --info: #457b9d;
    
    /* Colores neutros */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Colores de categorías */
    --blue: #3b82f6;
    --green: #10b981;
    --yellow: #f59e0b;
    --purple: #8b5cf6;
    --red: #ef4444;
    --orange: #f97316;
    --teal: #14b8a6;
    --indigo: #6366f1;
    --pink: #ec4899;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', var(--font-family);
    
    /* Tamaños de fuente */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* Espaciado */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Bordes y sombras */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transiciones */
    --transition-fast: all 0.15s ease;
    --transition-normal: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

img {
    max-width: 100%;
    height: auto;
}

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

a:hover {
    color: var(--primary-dark);
}

/* Utilidades generales */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.skip-link {
    position: absolute;
    top: var(--space-6);
    left: var(--space-6);
    background: var(--gray-900);
    color: var(--white);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-100%);
    transition: var(--transition-normal);
}



.highlight {
    color: var(--primary);
}

.highlights {
    color: #ffc700;
}


.hidden {
    display: none !important;
}

.hero-decorations {
      position: absolute;
      inset: 0;
      pointer-events: none;
    }

    .hero-decoration {
      position: absolute;
      border-radius: 50%;
      opacity: 0.1;
      animation: float 6s ease-in-out infinite;
    }

    .hero-decoration:nth-child(1) {
      top: 10%;
      left: 10%;
      width: 5rem;
      height: 5rem;
      background: white;
      animation-delay: 0s;
    }

    .hero-decoration:nth-child(2) {
      top: 33%;
      right: 20%;
      width: 8rem;
      height: 8rem;
      background: white;
      animation-delay: 1s;
    }

    .hero-decoration:nth-child(3) {
      bottom: 20%;
      left: 25%;
      width: 4rem;
      height: 4rem;
      background: white;
      animation-delay: 2s;
    }

    @keyframes float {
      0%, 100% {
        transform: translateY(0px);
      }
      50% {
        transform: translateY(-20px);
      }
    }


/* ==============================
   Botones
   ============================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background: #ffc700;
    color: var(--gray-900);
}

.btn-primary:hover {
    background: #e6b400;
    color: var(--gray-900);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-accent {
    background: var(--accent);
    color: var(--gray-900);
}

.btn-accent:hover {
    background: var(--warning);
    color: var(--gray-900);
}

.btn-ghost {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-ghost:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-purple {
    background: var(--purple);
    color: var(--white);
}

.btn-orange {
    background: var(--orange);
    color: var(--white);
}

.btn-red {
    background: var(--red);
    color: var(--white);
}

.btn-teal {
    background: var(--teal);
    color: var(--white);
}

.btn-indigo {
    background: var(--indigo);
    color: var(--white);
}

.btn-yellow {
    background: var(--yellow);
    color: var(--white);
}

.btn-link {
    background: none;
    color: var(--primary);
    padding: var(--space-2) 0;
    font-weight: 600;
}

.btn-link:hover {
    color: var(--primary-dark);
    transform: none;
    box-shadow: none;
}

.btn-full {
    width: 100%;
}

.btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

/* ==============================
   Hero Section
   ============================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #3366ff, #6366f1);
    overflow: hidden;
    padding: var(--space-20) 0;
    margin-top: 20px;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -150px;
    right: -150px;
    width: 300px;
    height: 300px;
    background: #707fe2;
    border-radius: 50%;
    opacity: 0.5;
}

.hero-background::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 300px;
    height: 300px;
    background: #18014e;
    border-radius: 50%;
    opacity: 0.1;
}

.hero-overlay {
      position: absolute;
      inset: 0;
      background: 
        linear-gradient(45deg, rgba(0, 0, 0, 0.1) 0%, transparent 30%),
        linear-gradient(to bottom, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.2) 100%);
    }


.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(6, 214, 160, 0.1);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-6);
    border: 1px solid rgba(6, 214, 160, 0.2);
}

.badge-icon {
    font-size: var(--text-lg);
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: #fff;
}

.hero-description {
    font-size: var(--text-xl);
    color: white;
    line-height: 1.7;
    margin-bottom: var(--space-8);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    align-items: center;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: white;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    box-shadow: var(--shadow-sm);
}

.stat-icon-blue {
    background: linear-gradient(135deg, var(--blue) 0%, var(--primary) 100%);
    color: var(--white);
}

.stat-icon-green {
    background: linear-gradient(135deg, var(--green) 0%, var(--success) 100%);
    color: var(--white);
}

.stat-icon-yellow {
    background: linear-gradient(135deg, var(--yellow) 0%, var(--accent) 100%);
    color: var(--white);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: var(--text-2xl);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: var(--text-sm);
}

/* ==============================
   Hero Visual
   ============================== */
.hero-visual {
    position: relative;
}

.demo-container {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    border: 5px solid var(--white);
}

.demo-container img {
    display: block;
    width: 100%;
    height: 380px;
    object-fit: cover;
}

.demo-card {
    position: absolute;
    bottom: -70px;
    right: -30px;
    width: 300px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    transform: rotate(3deg);
    overflow: hidden;
    z-index: 10;
    border: 1px solid var(--gray-200);
    transition: var(--transition-slow);
}

.demo-card:hover {
    transform: rotate(0) translateY(-10px);
}

.demo-header {
    padding: var(--space-3) var(--space-4);
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-indicators {
    display: flex;
    gap: 5px;
}

.progress-dot {
    width: 8px;
    height: 8px;
    background: var(--gray-300);
    border-radius: 50%;
}

.progress-dot.active {
    background: var(--primary);
}

.progress-text {
    font-size: var(--text-xs);
    color: var(--gray-600);
    font-weight: 600;
}

.demo-content {
    padding: var(--space-4);
}

.demo-question {
    font-size: var(--text-base);
    margin-bottom: var(--space-4);
    line-height: 1.4;
    font-weight: 600;
    color: var(--gray-900);
}

.demo-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.demo-option {
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    background: var(--gray-100);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--text-sm);
}

.demo-option:hover {
    background: var(--gray-200);
}

.demo-option.correct {
    background: rgba(6, 214, 160, 0.1);
    border-left: 3px solid var(--success);
}

.option-indicator {
    color: var(--success);
    font-weight: 700;
    margin-right: var(--space-2);
}

.demo-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--success);
    font-weight: 600;
    gap: var(--space-2);
}

.trust-badge {
    position: absolute;
    top: var(--space-4);
    left: -var(--space-4);
    background: var(--primary);
    color: var(--white);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
}

/* ==============================
   Secciones generales
   ============================== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 900;
    margin-bottom: var(--space-6);
    color: var(--gray-900);
}

.section-subtitle {
    font-size: var(--text-xl);
    color: var(--gray-600);
    max-width: 48rem;
    margin: 0 auto;
    line-height: 1.7;
}

.section-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.section-background::before {
    content: '';
    position: absolute;
    top: -150px;
    right: -150px;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 50%;
    opacity: 0.1;
}

.section-background::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--success) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    opacity: 0.1;
}

/* ==============================
   How It Works Section
   ============================== */
.how-it-works-section {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, #e6f2ff 100%);
    position: relative;
    overflow: hidden;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    position: relative;
    z-index: 1;
}

.step-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-8) var(--space-6) var(--space-6);
    text-align: center;
    position: relative;
    border: 1px solid var(--gray-100);
    transition: var(--transition-normal);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.step-number {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--white);
    z-index: 2;
}

.step-card:nth-child(2) .step-number {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--success) 100%);
}

.step-card:nth-child(3) .step-number {
    background: linear-gradient(135deg, var(--success) 0%, var(--accent) 100%);
}

.step-icon {
    width: 80px;
    height: 80px;
    background: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--space-6) auto;
    font-size: var(--text-2xl);
    color: var(--primary);
    transition: var(--transition-normal);
}

.step-card:hover .step-icon {
    transform: scale(1.1);
}

.step-card:nth-child(2) .step-icon {
    background: rgba(76, 201, 240, 0.1);
    color: var(--primary-light);
}

.step-card:nth-child(3) .step-icon {
    background: rgba(6, 214, 160, 0.1);
    color: var(--success);
}

.step-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--gray-900);
}

.step-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ==============================
   Simulators Section
   ============================== */
.simulators-section {
    padding: var(--space-20) 0;
    background: var(--white);
}

.simulators-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.simulator-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition-normal);
}

.simulator-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.card-header {
    padding: var(--space-6);
    position: relative;
    overflow: hidden;
}

.card-header-blue {
    background: linear-gradient(135deg, var(--blue) 0%, var(--primary) 100%);
}

.card-header-orange {
    background: linear-gradient(135deg, var(--orange) 0%, var(--red) 100%);
}

.header-background {
    position: absolute;
    inset: 0;
}

.header-background::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30px, -30px);
}

.header-background::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-15px, 15px);
}

.card-header-content {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.card-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-4);
    font-size: var(--text-2xl);
    color: var(--white);
    transition: var(--transition-normal);
}

.simulator-card:hover .card-icon {
    transform: scale(1.1);
}

.card-badges {
    color: var(--white);
}

.badge {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
}

.badge-white {
    background: var(--white);
    color: var(--primary);
}

.badge-info {
    font-size: var(--text-sm);
    opacity: 0.9;
    margin-top: var(--space-2);
    display: block;
}

.card-content {
    padding: var(--space-8);
}

.card-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--gray-900);
}

.card-description {
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    margin-bottom: var(--space-8);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    color: var(--gray-700);
}

.feature-item i {
    color: white;
    font-size: 16px;
}

#feature-item{
    color: black;
    font-size: 16px;
}

.card-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* ==============================
   Blog Section
   ============================== */
.blog-section {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, #e6f2ff 100%);
    position: relative;
    overflow: hidden;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    /* SOLUCIÓN: Asegurar que la card no bloquee eventos */
    pointer-events: auto;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.blog-image {
    position: relative;
    overflow: hidden;
    height: 200px;
    /* CRÍTICO: La imagen no debe capturar clics */
    pointer-events: none;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
    /* IMPORTANTE: Imagen puramente decorativa */
    pointer-events: none;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    right: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    /* SOLUCIÓN: Overlay no debe capturar eventos */
    pointer-events: none;
    z-index: 1;
}

/* Los elementos específicos del overlay SÍ pueden recibir clics */
.image-overlay .category-badge,
.image-overlay .read-time {
    pointer-events: auto;
}

.category-badge {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-fast);
    /* Badge es clickeable */
    pointer-events: auto;
}

.category-badge:hover {
    transform: scale(1.05);
}

.category-blue { background: var(--blue); }
.category-green { background: var(--green); }
.category-yellow { background: var(--yellow); }
.category-purple { background: var(--purple); }
.category-red { background: var(--red); }
.category-orange { background: var(--orange); }
.category-teal { background: var(--teal); }
.category-amber { background: var(--warning); }
.category-gray { background: var(--gray-600); }
.category-pink { background: var(--pink); }

.read-time {
    background: rgba(255, 255, 255, 0.9);
    color: var(--gray-700);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 500;
    /* No necesita ser clickeable */
    pointer-events: none;
}

.blog-content {
    padding: var(--space-6);
    /* IMPORTANTE: Contenido principal debe estar accesible */
    position: relative;
    z-index: 2;
    pointer-events: auto;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin-bottom: var(--space-3);
}

.meta-separator {
    margin: 0 var(--space-1);
}

.blog-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--gray-900);
    transition: var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-title a {
    color: inherit;
    text-decoration: none;
    /* SOLUCIÓN: Título debe ser clickeable */
    pointer-events: auto;
    position: relative;
    z-index: 3;
}

.blog-card:hover .blog-title,
.blog-title a:hover {
    color: var(--primary);
}

.blog-description {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* CRÍTICO: Footer debe estar completamente accesible */
    position: relative;
    z-index: 4;
    pointer-events: auto;
}

.read-more {
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: var(--transition-fast);
    text-decoration: none;
    /* SOLUCIÓN PRINCIPAL: Botón completamente clickeable */
    pointer-events: auto !important;
    position: relative;
    z-index: 10;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
}

.read-more:hover {
    color: var(--primary-dark);
    background: rgba(67, 97, 238, 0.05);
    transform: translateX(4px);
}

.blog-icon {
    color: var(--gray-400);
    font-size: var(--text-xs);
    /* Icono decorativo no necesita eventos */
    pointer-events: none;
}

.blog-cta {
    text-align: center;
    margin-top: var(--space-12);
    /* SOLUCIÓN: CTA principal completamente accesible */
    position: relative;
    z-index: 100;
    pointer-events: auto;
}

.blog-cta .btn {
    /* CRÍTICO: Botón principal debe funcionar siempre */
    position: relative;
    z-index: 101;
    pointer-events: auto !important;
}

/* Solución adicional para casos extremos */
.blog-card > * {
    position: relative;
}

/* Asegurar que todos los enlaces funcionen */
.blog-card a {
    pointer-events: auto !important;
    position: relative;
    z-index: 5;
}

/* ==============================
   Study Section
   ============================== */
.study-section {
    padding: var(--space-20) 0;
    background: var(--white);
}

.study-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-12);
}

.tab-container {
    background: var(--gray-100);
    padding: var(--space-1);
    border-radius: var(--radius-2xl);
    display: inline-flex;
}

.tab-button {
    padding: var(--space-3) var(--space-8);
    border: none;
    background: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.tab-button:hover {
    color: var(--gray-900);
}

.tab-button.active {
    background: var(--primary);
    color: var(--white);
}

.study-content {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(10px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* ==============================
   Featured Book - Responsive
   ============================== */
.featured-book {
    margin-bottom: var(--space-16);
}

.book-card {
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.book-card-blue {
    background: #2563eb;
}

.book-card-orange {
    background: linear-gradient(135deg, var(--orange) 0%, var(--red) 100%);
}

.book-background {
    position: absolute;
    inset: 0;
}

.book-background::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    transform: translate(40px, -40px);
}

.book-background::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-25px, 25px);
}

.book-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
    position: relative;
    z-index: 1;
}

.book-badge {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.badge-icon {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-900);
    font-size: var(--text-xl);
    flex-shrink: 0;
}



.badge-text {
    background: var(--accent);
    color: var(--gray-900);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.book-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    line-height: 1.2;
    color: white;
}

.book-description {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    opacity: 0.9;
}

.book-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.book-features .feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: white;
    font-size: 16px;
}

.book-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.book-image {
    position: relative;
    text-align: center;
    max-width: 100%;
}

.book-image img {
    max-width: 500px;
    width: 100%;
    height: auto;
    transition: var(--transition-normal);
    border-radius: 8px;
    border: 4px solid white;
    object-fit: cover;
}

.book-image:hover img {
    transform: scale(1.05);
}

.free-badge {
    position: absolute;
    bottom: -16px;
    right: -16px;
    background: var(--success);
    color: var(--white);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    white-space: nowrap;
}

/* ==============================
   Responsive Design
   ============================== */

/* Large Tablets and Small Laptops (1024px and below) */
@media (max-width: 1024px) {
    .book-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }
    .documents-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 2rem;
    }
    .book-title {
        font-size: var(--text-2xl);
    }
    
    .book-description {
        font-size: var(--text-base);
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .book-features {
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: var(--space-6);
    }
    
    .book-image img {
        max-width: 400px;
    }
    
    .book-background::before {
        width: 120px;
        height: 120px;
        transform: translate(30px, -30px);
    }
    
    .book-background::after {
        width: 100px;
        height: 100px;
        transform: translate(-20px, 20px);
    }
}

/* Regular Tablets (768px and below) */
@media (max-width: 768px) {
    .book-card {
        padding: var(--space-6);
        margin: 0 var(--space-4);
    }
    
    .book-content {
        gap: var(--space-6);
    }
    
    .book-badge {
        justify-content: center;
        gap: var(--space-3);
    }
    
    .badge-icon {
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }
    
    .badge-text {
        font-size: var(--text-xs);
        padding: var(--space-1) var(--space-2);
    }
    
    .book-title {
        font-size: 36px;
        margin-bottom: var(--space-3);
    }
    
    .book-description {
        font-size: 20px;
        margin-bottom: var(--space-4);
    }
    
    .book-features {
        grid-template-columns: 1fr;
        gap: var(--space-3);
        margin-bottom: var(--space-4);
    }
    
    .book-features .feature-item {
        justify-content: center;
        font-size: var(--text-xs);
    }
    
    .book-image img {
        max-width: 320px;
        border: 3px solid white;
    }
    
    .free-badge {
        bottom: -12px;
        right: -12px;
        padding: var(--space-1) var(--space-2);
        font-size: var(--text-xs);
    }
    
    .book-background::before {
        width: 100px;
        height: 100px;
        transform: translate(25px, -25px);
    }
    
    .book-background::after {
        width: 80px;
        height: 80px;
        transform: translate(-15px, 15px);
    }
}

/* Mobile Landscape and Small Tablets (576px and below) */
@media (max-width: 576px) {
    .featured-book {
        margin-bottom: var(--space-12);
    }
    
    .book-card {
        padding: var(--space-4);
        margin: 0 var(--space-2);
        border-radius: var(--radius-xl);
    }
    
    .book-content {
        gap: var(--space-4);
    }
    
    .book-badge {
        flex-direction: column;
        align-items: center;
        gap: var(--space-2);
        margin-bottom: var(--space-3);
    }
    
    .badge-icon {
        width: 36px;
        height: 36px;
        font-size: var(--text-base);
    }
    
    .book-title {
        font-size: var(--text-lg);
        margin-bottom: var(--space-2);
    }
    
    .book-description {
        font-size: var(--text-xs);
        margin-bottom: var(--space-3);
        line-height: 1.5;
    }
    
    .book-features {
        gap: var(--space-2);
        margin-bottom: var(--space-3);
    }
    
    .book-features .feature-item {
        font-size: 11px;
        gap: var(--space-1);
    }
    
    .book-image img {
        max-width: 280px;
        border: 2px solid white;
        border-radius: 6px;
    }
    
    .free-badge {
        bottom: -8px;
        right: -8px;
        padding: 4px 8px;
        font-size: 10px;
        border-radius: var(--radius-md);
    }
    
    .book-background::before {
        width: 80px;
        height: 80px;
        transform: translate(20px, -20px);
    }
    
    .book-background::after {
        width: 60px;
        height: 60px;
        transform: translate(-10px, 10px);
    }
}

/* Extra Small Mobile (480px and below) */
@media (max-width: 480px) {
    .book-card {
        padding: var(--space-3);
        margin: 0 var(--space-1);
    }
    
    .book-title {
        font-size: var(--text-base);
        line-height: 1.3;
    }
    
    .book-description {
        font-size: 11px;
    }
    
    .book-features .feature-item {
        font-size: 10px;
    }
    
    .book-image img {
        max-width: 240px;
    }
    
    .book-background::before {
        width: 60px;
        height: 60px;
        transform: translate(15px, -15px);
    }
    
    .book-background::after {
        width: 50px;
        height: 50px;
        transform: translate(-8px, 8px);
    }
}

/* ==============================
   Accessibility and Performance
   ============================== */

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .book-image img {
        transition: none;
    }
    
    .book-image:hover img {
        transform: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .book-card {
        border: 2px solid var(--white);
    }
    
    .free-badge {
        border: 1px solid var(--white);
    }
}

/* Performance optimizations */
.book-image img {
    will-change: transform;
    backface-visibility: hidden;
}

.book-background::before,
.book-background::after {
    will-change: auto;
}



/* Print styles */
@media print {
    .book-card {
        background: none !important;
        color: black !important;
        border: 1px solid black;
    }
    
    .book-background::before,
    .book-background::after {
        display: none;
    }
    
    .free-badge {
        background: black !important;
        color: white !important;
    }
}
/* Documents Section */
.documents-section {
    margin-top: var(--space-16);
}

.documents-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-8);
    color: var(--gray-900);
}

.documents-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.document-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition-normal);
}

.document-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.document-header {
    padding: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.document-header-green { background: linear-gradient(135deg, var(--green) 0%, var(--success) 100%); }
.document-header-purple { background: linear-gradient(135deg, var(--purple) 0%, var(--indigo) 100%); }
.document-header-orange { background: linear-gradient(135deg, var(--orange) 0%, var(--red) 100%); }
.document-header-red { background: linear-gradient(135deg, var(--red) 0%, var(--pink) 100%); }
.document-header-teal { background: linear-gradient(135deg, var(--teal) 0%, var(--green) 100%); }
.document-header-indigo { background: linear-gradient(135deg, var(--indigo) 0%, var(--purple) 100%); }
.document-header-blue { background: linear-gradient(135deg, var(--blue) 0%, var(--primary) 100%); }
.document-header-yellow { background: linear-gradient(135deg, var(--yellow) 0%, var(--orange) 100%); }

.document-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.document-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.document-meta {
    color: var(--white);
}

.file-type {
    font-size: var(--text-sm);
    font-weight: 500;
}

.file-size {
    font-size: var(--text-xs);
    opacity: 0.8;
}

.document-badge {
    background: var(--white);
    color: var(--primary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.document-content {
    padding: var(--space-6);
}

.document-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--gray-900);
}

.document-description {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.document-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.action-buttons {
    display: flex;
    gap: var(--space-2);
}

.page-count {
    font-size: var(--text-xs);
    color: var(--gray-500);
}

/* Study CTA */
.study-cta {
    margin-top: var(--space-16);
}

.cta-card {
    background: linear-gradient(135deg, var(--gray-50) 0%, #e6f2ff 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    text-align: center;
}

.cta-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--gray-900);
}

.cta-description {
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
}

/* ==============================
   Modal
   ============================== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-2xl);
    max-width: 64rem;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
}

.modal-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: var(--text-xl);
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--gray-600);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    max-height: 70vh;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 2px solid var(--gray-200);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-4);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==============================
   FAQ Section
   ============================== */
.faq-section {
    padding: var(--space-20) 0;
    background: var(--white);
}

.faq-container {
    max-width: 48rem;
    margin: 0 auto;
}

.faq-item {
    background: var(--gray-50);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    margin-bottom: var(--space-6);
}

.faq-button {
    width: 100%;
    background: none;
    border: none;
    padding: var(--space-8) var(--space-8);
    cursor: pointer;
    text-align: left;
}



.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question span {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.faq-icon {
    color: var(--gray-400);
    transition: var(--transition-normal);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer {
    padding: 0 var(--space-8) var(--space-6);
    color: var(--gray-600);
    line-height: 1.6;
}

.faq-footer {
    text-align: center;
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-200);
}

.contact-link {
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition-fast);
}

.contact-link:hover {
    color: var(--primary-dark);
}

/* ==============================
   Responsive Design
   ============================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .steps-container {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .simulators-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    
    .book-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 1024px) {
    .container {
        padding: 0 40px;
    }
    
    .hero-section {
        padding: var(--space-16) 0;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-description {
        font-size: var(--text-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        display: flex;
        flex-direction: column;
    }
    
    .section-title {
        font-size: var(--text-3xl);
    }
    
    .section-subtitle {
        font-size: var(--text-lg);
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }

    
    .tab-container {
        flex-direction: column;
        width: 100%;
    }
    
    .tab-button {
        justify-content: center;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .demo-card {
        position: static;
        transform: none;
        margin-top: var(--space-8);
        width: 100%;
    }
    
    .demo-card:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 768px) {
    .documents-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--text-2xl);
    }
    .document-card {
        margin: 0;
    }
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }
    
    .modal-content {
        margin: var(--space-4);
        max-height: calc(100vh - 2rem);
    }
}