/*
 * Zero-Shot Learning - Sistema de Diseño Avanzado
 * Arquitectura CSS optimizada con microinteracciones y accesibilidad
 */

/* ========================================
   RESET Y CONFIGURACIÓN BASE
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ========================================
   SISTEMA DE VARIABLES DE DISEÑO
======================================== */

:root {
    /* PALETA DE COLORES PRIMARIOS
       Colores principales de la marca y funcionales */
    --primary-blue: #007bff;
    --success-green: #28a745;
    --vibrant-orange: #fd7e14;
    --modern-purple: #6f42c1;
    --accent-cyan: #17a2b8;

    /* COLORES DE FONDO
       Backgrounds para diferentes niveles de profundidad */
    --dark-bg: #1a1a2e;
    --card-bg: #16213e;
    --light-bg: #0f3460;

    /* COLORES DE TEXTO
       Jerarquía tipográfica por contraste optimizada para accesibilidad */
    --text-white: #ffffff;
    --text-gray: #f1f3f4;      /* Mejorado contraste */
    --text-muted: #b8c5d1;     /* Mejorado contraste */
    --text-secondary: #d1d9e0;  /* Mejorado contraste */

    /* TIPOGRAFÍA
       Sistema tipográfico escalable */
    --font-family-primary: 'Poppins', sans-serif;
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */
    --font-size-5xl: 3rem;       /* 48px */
    --font-size-6xl: 3.75rem;    /* 60px */

    /* PESOS DE FUENTE
       Jerarquía de énfasis tipográfico */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* ESPACIADO
       Sistema de espaciado modular basado en múltiplos de 8px */
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    --space-3xl: 4rem;     /* 64px */
    --space-4xl: 5rem;     /* 80px */
    --space-5xl: 6rem;     /* 96px */

    /* BORDER RADIUS
       Sistema de bordes redondeados coherente */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.25rem;   /* 20px */
    --radius-full: 50px;     /* Elementos circulares */

    /* SISTEMA DE SOMBRAS
       Sombras por niveles de elevación */
    --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);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* SOMBRAS ESPECÍFICAS DEL TEMA
       Sombras con colores de marca para efectos especiales */
    --shadow-blue: 0 10px 30px rgba(0, 123, 255, 0.3);
    --shadow-blue-hover: 0 15px 40px rgba(0, 123, 255, 0.4);
    --shadow-purple: 0 5px 15px rgba(111, 66, 193, 0.4);
    --shadow-orange: 0 5px 15px rgba(253, 126, 20, 0.4);

    /* TRANSICIONES
       Sistema de animaciones coherente */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;

    /* Z-INDEX
       Capas de elevación estandarizadas */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* BREAKPOINTS PARA RESPONSIVE
       Puntos de ruptura del sistema responsive */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* CONTENEDOR PRINCIPAL
       Ancho máximo del contenido */
    --container-max-width: 1200px;

    /* PATRONES Y EFECTOS VISUALES
       Elementos decorativos y de fondo - equilibrio visual mejorado */
    --gradient-hero: linear-gradient(135deg, rgba(0, 123, 255, 0.12), rgba(111, 66, 193, 0.12));
    --gradient-warm: linear-gradient(135deg, rgba(253, 126, 20, 0.06), rgba(111, 66, 193, 0.08));
    --gradient-neutral: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(111, 66, 193, 0.05));
    --gradient-purple: linear-gradient(135deg, rgba(111, 66, 193, 0.08), rgba(26, 26, 46, 0.12));
    --pattern-dots: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.15) 1px, transparent 0);
    --blur-backdrop: blur(12px);
    
    /* COLORES NEUTROS ADICIONALES
       Para reducir saturación de azul en elementos secundarios */
    --neutral-bg: rgba(255, 255, 255, 0.02);
    --warm-accent: rgba(253, 126, 20, 0.15);
    --purple-muted: rgba(111, 66, 193, 0.12);
    
    /* ANIMACIONES Y MICROINTERACCIONES
       Duraciones y easings estandarizados */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --duration-fast: 200ms;
    --duration-normal: 350ms;
    --duration-slow: 600ms;
}

/* ========================================
   ZERO-SHOT LEARNING RESEARCH PAGE
   Modern CSS System - Version 2.0
   Responsive, Accessible, Performance-Optimized
======================================== */

/* ========================================
   ESTILOS GLOBALES Y RESET
======================================== */

body {
    font-family: var(--font-family-primary);
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--light-bg) 100%);
    color: var(--text-white);
    line-height: 1.6;
    min-height: 100vh;
}

/* Efecto de fondo con patrón sutil */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(0, 123, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(111, 66, 193, 0.15) 0%, transparent 50%);
    opacity: 0.1;
    z-index: -1;
}

/* ========================================
   COMPONENTES DE NAVEGACIÓN MEJORADOS
======================================== */

.header {
    background: rgba(26, 26, 46, 0.92);
    backdrop-filter: var(--blur-backdrop);
    padding: var(--space-md) 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: var(--z-fixed);
    border-bottom: 1px solid rgba(0, 123, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: all var(--duration-normal) var(--ease-smooth);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-xl);
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(45deg, var(--primary-blue), var(--success-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.logo:hover {
    background: linear-gradient(45deg, var(--accent-cyan), var(--vibrant-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: clamp(var(--space-lg), 4vw, var(--space-2xl));
}

.nav-menu a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    transition: all var(--duration-normal) var(--ease-smooth);
    position: relative;
    padding: var(--space-sm) 0;
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
    color: var(--primary-blue);
    transform: translateY(-1px);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
    transition: all var(--duration-normal) var(--ease-smooth);
    transform: translateX(-50%);
    border-radius: 1px;
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after {
    width: 100%;
    box-shadow: 0 0 8px rgba(0, 123, 255, 0.4);
}

.logo {
    font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-2xl));
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(45deg, var(--primary-blue), var(--success-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--duration-normal) var(--ease-smooth);
    cursor: pointer;
    will-change: transform;
}

.logo:hover {
    transform: translateY(-2px) scale(1.05);
    filter: drop-shadow(0 4px 8px rgba(0, 123, 255, 0.3));
}

/* ========================================
   LAYOUT PRINCIPAL
======================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 100px var(--space-xl) var(--space-xl);
}

/* ========================================
   COMPONENTE HERO MEJORADO
======================================== */

.hero {
    text-align: center;
    padding: var(--space-4xl) var(--space-xl) var(--space-5xl);
    background: var(--gradient-hero);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-4xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--pattern-dots);
    background-size: 40px 40px;
    opacity: 0.08;
    animation: pattern-move 25s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(0, 123, 255, 0.03) 60deg, transparent 120deg);
    animation: rotate-subtle 30s linear infinite;
}

@keyframes pattern-move {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(10px, -5px); }
    50% { transform: translate(-5px, 10px); }
    75% { transform: translate(-10px, -8px); }
}

@keyframes rotate-subtle {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 3;
}

.hero-badge {
    display: inline-block;
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: var(--blur-backdrop);
    border: 1.5px solid rgba(0, 123, 255, 0.4);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-white);
    margin-bottom: var(--space-xl);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    position: relative;
    transition: all var(--duration-normal) var(--ease-smooth);
    box-shadow: 
        0 4px 20px rgba(0, 123, 255, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: badge-glow 3s ease-in-out infinite;
}

@keyframes badge-glow {
    0%, 100% { 
        box-shadow: 
            0 4px 20px rgba(0, 123, 255, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    50% { 
        box-shadow: 
            0 4px 25px rgba(0, 123, 255, 0.25),
            inset 0 1px 0 rgba(255, 255, 255, 0.15);
    }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--space-xl);
    background: linear-gradient(45deg, var(--text-white), var(--primary-blue), var(--success-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    line-height: 1.1;
}

.hero h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 60%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary-blue), var(--accent-cyan), transparent);
    transform: translateX(-50%);
    border-radius: 2px;
    animation: underline-glow 2s ease-in-out infinite;
    opacity: 0.8;
}

@keyframes underline-glow {
    0%, 100% { 
        opacity: 0.6;
        transform: translateX(-50%) scaleX(0.8);
        box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
    }
    50% { 
        opacity: 1;
        transform: translateX(-50%) scaleX(1);
        box-shadow: 0 0 20px rgba(0, 123, 255, 0.6);
    }
}

.hero p {
    font-size: var(--font-size-xl);
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto var(--space-xl);
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--primary-blue), var(--modern-purple));
    color: white;
    padding: var(--space-md) var(--space-2xl);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-blue);
    transition: all var(--duration-normal) var(--ease-smooth);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    will-change: transform;
}

.cta-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 var(--duration-slow) var(--ease-smooth);
}

.cta-button:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-blue-hover);
    background: linear-gradient(45deg, var(--accent-cyan), var(--primary-blue));
}

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

.cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-gray);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    padding: var(--space-sm) var(--space-lg);
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
    transition: all var(--duration-normal) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.cta-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.05);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-smooth);
}

.cta-secondary:hover {
    color: var(--text-white);
    border-color: rgba(0, 123, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.cta-secondary:hover::before {
    opacity: 1;
}

@media (min-width: 640px) {
    .hero-actions {
        flex-direction: row;
        justify-content: center;
    }
}

/* ========================================
   COMPONENTES DE SECCIÓN
======================================== */

/* ========================================
   COMPONENTES DE SECCIÓN VARIADOS
======================================== */

.section {
    margin-bottom: var(--space-5xl);
    opacity: 1;
    transform: translateY(0);
    transition: all var(--duration-slow) var(--ease-smooth);
    will-change: transform, opacity;
}

/* Clase auxiliar para animación - solo si JS está disponible */
.js .section.js-animate {
    opacity: 0;
    transform: translateY(60px);
}

.js .section.js-animate.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* Sección con tarjeta (para contenido que necesita encuadre) */
.section-card {
    background: var(--card-bg);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl) var(--space-3xl) var(--space-3xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(0, 123, 255, 0.15);
    position: relative;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-smooth);
    will-change: transform, box-shadow;
}

.section-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    border-color: rgba(0, 123, 255, 0.3);
}

.section-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--success-green), var(--vibrant-orange), var(--modern-purple));
    opacity: 0.8;
}

/* Sección con gradiente cálido - reduce saturación azul */
.section-gradient {
    background: var(--gradient-warm);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl) var(--space-3xl);
    position: relative;
    overflow: hidden;
    margin-bottom: var(--space-5xl);
}

.section-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--pattern-dots);
    background-size: 20px 20px;
    opacity: 0.04;
}

/* Sección con gradiente neutro */
.section-neutral {
    background: var(--gradient-neutral);
    padding: var(--space-5xl) var(--space-3xl) var(--space-4xl);
    position: relative;
    margin-bottom: var(--space-5xl);
    border-radius: var(--radius-xl);
}

/* Sección minimalista completamente plana */
.section-minimal {
    padding: var(--space-4xl) var(--space-lg) var(--space-3xl);
    position: relative;
    margin-bottom: var(--space-5xl);
}

.section-minimal::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    transform: translateX(-50%);
}

/* Sección con línea superior sutil */
.section-lined {
    padding: var(--space-4xl) var(--space-lg) var(--space-3xl);
    position: relative;
    margin-bottom: var(--space-4xl);
}

.section-lined::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 30%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--warm-accent), transparent);
    transform: translateX(-50%);
}

.section-number {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-xl);
    background: linear-gradient(45deg, var(--vibrant-orange), var(--success-green));
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-extrabold);
    font-size: var(--font-size-2xl);
    box-shadow: var(--shadow-orange);
    z-index: 1;
}

.section h2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-lg);
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.section h2::before {
    content: '';
    width: 5px;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
    border-radius: 3px;
}

.section h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue);
    margin: var(--space-xl) 0 var(--space-md);
}

.section p {
    font-size: var(--font-size-lg);
    color: var(--text-gray);
    margin: var(--space-md) 0;
    line-height: 1.8;
}

/* ========================================
   COMPONENTES DE TEXTO ESPECIALES
======================================== */

.highlight {
    color: var(--success-green);
    font-weight: var(--font-weight-semibold);
}

.emphasis {
    background: linear-gradient(45deg, var(--vibrant-orange), var(--success-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: var(--font-weight-semibold);
}

/* ========================================
   COMPONENTES DE MEDIOS
======================================== */

.image-container {
    background: var(--neutral-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    backdrop-filter: blur(2px);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.responsive-image {
    width: 100%;
    max-width: 650px;
    height: auto;
    aspect-ratio: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--duration-normal) var(--ease-smooth);
    display: block;
}

.responsive-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   MODAL DE ZOOM PARA IMÁGENES
======================================== */

.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.modal-overlay {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.modal-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
}

.modal-close {
    position: absolute;
    top: -50px;
    right: -10px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
    backdrop-filter: blur(10px);
}

.modal-close:hover,
.modal-close:focus-visible {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
    transform: scale(1.1);
}

.image-caption {
    text-align: center;
    font-style: italic;
    color: var(--text-muted);
    margin: var(--space-md) auto var(--space-xl);
    font-size: var(--font-size-sm);
    max-width: 600px;
    padding: 0 var(--space-lg);
}

/* ========================================
   COMPONENTES DE TÉCNICAS
======================================== */

/* ========================================
   TÉCNICA GRID RESPONSIVA MEJORADA
======================================== */

.technique-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(280px, 45vw, 420px), 1fr));
    gap: var(--space-xl);
    grid-auto-rows: minmax(auto, 1fr);
    margin: var(--space-xl) 0;
    max-width: 100%;
}

.technique-card {
    background: var(--neutral-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
    border: none;
    position: relative;
    transition: all var(--duration-normal) var(--ease-smooth);
    will-change: transform, box-shadow;
    opacity: 1;
    transform: translateY(0);
    height: fit-content;
    backdrop-filter: blur(2px);
}

/* Clase auxiliar para animación - solo si JS está disponible */
.js .technique-card.js-animate {
    opacity: 0;
    transform: translateY(40px);
}

.js .technique-card.js-animate.fade-in {
    opacity: 1;
    transform: translateY(0);
}

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

.technique-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--purple-muted), transparent);
    border-radius: var(--radius-sm);
    opacity: 0.6;
    transition: opacity var(--duration-normal) var(--ease-smooth);
}

.technique-card:hover::before {
    opacity: 1;
}

.technique-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--modern-purple), var(--primary-blue));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-purple);
}

/* ========================================
   COMPONENTES DE LISTAS
======================================== */

.feature-list {
    list-style: none;
    margin: var(--space-lg) 0;
}

.feature-list li {
    padding: var(--space-sm) 0;
    position: relative;
    padding-left: var(--space-xl);
    color: var(--text-gray);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: bold;
    font-size: var(--font-size-xl);
}

/* ========================================
   NAVEGACIÓN MÓVIL CON HAMBURGUESA
======================================== */

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

.mobile-menu-toggle {
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--z-fixed);
    transition: transform var(--duration-normal) var(--ease-smooth);
}

.mobile-menu-toggle:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.hamburger-line {
    display: block;
    height: 3px;
    width: 100%;
    background: var(--text-white);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-smooth);
    transform-origin: center;
}

/* Estados de animación del hamburguesa */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(26, 26, 46, 0.98);
        backdrop-filter: var(--blur-backdrop);
        border: none;
        transform: translateX(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--duration-normal) var(--ease-smooth);
        z-index: calc(var(--z-fixed) - 1);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .nav.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-close {
        position: absolute;
        top: var(--space-xl);
        right: var(--space-xl);
        background: transparent;
        border: 2px solid var(--text-white);
        color: var(--text-white);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: var(--font-size-xl);
        cursor: pointer;
        transition: all var(--duration-normal) var(--ease-smooth);
    }
    
    .mobile-menu-close:hover,
    .mobile-menu-close:focus-visible {
        background: var(--primary-blue);
        border-color: var(--primary-blue);
        transform: scale(1.1);
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0;
        padding: var(--space-xl) 0;
        max-height: 70vh;
        overflow-y: auto;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: block;
        padding: var(--space-lg) var(--space-xl);
        font-size: var(--font-size-lg);
        text-align: center;
        transition: all var(--duration-normal) var(--ease-smooth);
        position: relative;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .nav-menu a:hover,
    .nav-menu a:focus-visible {
        background: rgba(0, 123, 255, 0.1);
        color: var(--text-white);
        transform: none;
    }
    
    /* Fallback sin JavaScript - menú siempre visible */
    .no-js .nav {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
        border-top: none;
        height: auto;
        display: block;
    }
    
    .no-js .mobile-menu-close {
        display: none;
    }
    
    .no-js .mobile-menu-toggle {
        display: none;
    }
    
    .no-js .nav-menu {
        display: flex;
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-md) 0;
    }
    
    .container {
        padding: 80px var(--space-md) var(--space-md);
    }
    
    .section-card {
        padding: var(--space-xl);
    }
    
    .technique-grid {
        grid-template-columns: 1fr;
    }
    
    .section h2 {
        font-size: var(--font-size-3xl);
    }

    .nav-container {
        padding: 0 var(--space-md);
    }

    .hero {
        padding: var(--space-xl) 0 var(--space-3xl);
    }
}

/* ========================================
   ANIMACIONES Y EFECTOS
======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Efectos de hover mejorados */
.section-card,
.technique-card,
.cta-button {
    will-change: transform;
}

/* ========================================
   OPTIMIZACIONES DE RENDIMIENTO
======================================== */

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Preparación para animaciones performantes */
.section,
.technique-card,
.section-card,
.cta-button,
.logo {
    will-change: transform;
}

/* Preload de transformaciones */
.section-card,
.technique-card {
    transform: translateZ(0);
}

/* ========================================
   ESTADOS ESPECIALES PARA JAVASCRIPT
======================================== */

.js-animate {
    transition-delay: var(--duration-fast);
}

.js-animate.fade-in {
    transition-delay: 0s;
}

/* Stagger animations para elementos en grupo */
.technique-card:nth-child(1).fade-in { transition-delay: 0ms; }
.technique-card:nth-child(2).fade-in { transition-delay: 150ms; }
.technique-card:nth-child(3).fade-in { transition-delay: 300ms; }
.technique-card:nth-child(4).fade-in { transition-delay: 450ms; }

/* ========================================
   ACCESSIBILITY Y UX MEJORADO
======================================== */

/* Indicadores para navegación por teclado */
.user-is-tabbing *:focus {
    outline: 2px solid var(--accent-cyan) !important;
    outline-offset: 2px;
}

/* Mejoras para motion reduction - cubre todos los efectos */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
        transform: none !important;
    }
    
    /* Desactivar animaciones específicas */
    .hero::before,
    .hero::after,
    .section-gradient::before,
    .hero-badge {
        animation: none !important;
    }
    
    /* Mantener funcionalidad sin movimiento */
    .js .section.js-animate,
    .js .technique-card.js-animate {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ========================================
   RESPONSIVE FINAL Y POLISH
======================================== */

/* ========================================
   BREAKPOINTS MÓVILES ESPECÍFICOS
======================================== */

@media (max-width: 480px) {
    .hero {
        padding: var(--space-2xl) var(--space-lg) var(--space-3xl);
        margin-bottom: var(--space-3xl);
    }
    
    .hero h1::after {
        width: 80%;
        height: 3px;
    }
    
    .hero-actions {
        gap: var(--space-lg);
        margin-top: var(--space-lg);
    }
    
    .cta-button {
        padding: var(--space-md) var(--space-xl);
        font-size: var(--font-size-base);
    }
    
    .cta-secondary {
        font-size: var(--font-size-sm);
        padding: var(--space-sm) var(--space-lg);
    }
    
    /* Secciones con más espacio */
    .section-card,
    .section-neutral,
    .section-gradient,
    .section-minimal,
    .section-lined {
        padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
        margin-bottom: var(--space-3xl);
    }
    
    /* Números de sección ajustados para móvil */
    .section-number {
        top: var(--space-md);
        right: var(--space-md);
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    /* Technique cards con espaciado mejorado */
    .technique-card {
        padding: var(--space-xl);
        margin-bottom: var(--space-lg);
    }
    
    .technique-grid {
        gap: var(--space-lg);
        margin: var(--space-lg) 0;
    }
    
    /* Imágenes responsive en móvil */
    .image-container {
        margin: var(--space-lg) 0;
        padding: var(--space-md);
        overflow: visible;
    }
    
    .responsive-image {
        border-radius: var(--radius-md);
        max-width: 100%;
    }
    
    .responsive-image:hover {
        transform: none;
    }
    
    /* Modal de zoom responsive */
    .modal-overlay {
        max-width: 95vw;
        max-height: 85vh;
    }
    
    .modal-close {
        top: -40px;
        right: 0;
        width: 35px;
        height: 35px;
        font-size: var(--font-size-lg);
    }
}

/* ========================================
   BREAKPOINTS TABLET Y DESKTOP
======================================== */

@media (min-width: 481px) and (max-width: 768px) {
    .container {
        padding: 90px var(--space-lg) var(--space-lg);
    }
    
    .hero {
        padding: var(--space-3xl) var(--space-xl) var(--space-4xl);
    }
    
    .technique-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .technique-card {
        max-width: 600px;
        margin: 0 auto var(--space-lg);
    }
    
    .section-card,
    .section-neutral,
    .section-gradient,
    .section-minimal,
    .section-lined {
        padding: var(--space-3xl) var(--space-2xl);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .technique-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
        gap: var(--space-xl);
    }
}

@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .technique-grid {
        grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
        gap: var(--space-2xl);
    }
}

/* Estados de carga y transiciones mejoradas */
.hero-content > * {
    opacity: 0;
    transform: translateY(30px);
    animation: hero-reveal 0.8s var(--ease-smooth) forwards;
}

.hero-content > *:nth-child(1) { animation-delay: 0.2s; }
.hero-content > *:nth-child(2) { animation-delay: 0.4s; }
.hero-content > *:nth-child(3) { animation-delay: 0.6s; }
.hero-content > *:nth-child(4) { animation-delay: 0.8s; }

@keyframes hero-reveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mejoras en contraste para mejor legibilidad */
.section h3 {
    color: var(--text-white);
    font-weight: var(--font-weight-semibold);
}

.feature-list li {
    color: var(--text-gray);
}

.feature-list li strong {
    color: var(--text-white);
}

/* ========================================
   OPTIMIZACIONES DE RENDIMIENTO
======================================== */

/* Aceleración de GPU para elementos con transformaciones */
.technique-card,
.image-container,
.responsive-image,
.cta-button,
.mobile-menu {
    transform: translateZ(0);
    will-change: transform;
}

/* Optimización para temas de alto contraste */
@media (prefers-contrast: high) {
    :root {
        --color-border: #ffffff;
        --color-text-secondary: #ffffff;
        --shadow-sm: 0 1px 3px rgba(255, 255, 255, 0.4);
    }
}

/* Mejoras de performance para contenido crítico */
.hero h1,
.section-title {
    font-display: swap;
    text-rendering: optimizeLegibility;
}

/* ========================================
   NUEVAS ANIMACIONES Y EFECTOS DINÁMICOS
======================================== */

/* 1. HERO DINÁMICO - Animación de fondo y partículas */
@keyframes heroGradientShift {
    0% { background-position: 0% 50%; }
    25% { background-position: 100% 50%; }
    50% { background-position: 100% 100%; }
    75% { background-position: 0% 100%; }
    100% { background-position: 0% 50%; }
}

.hero {
    background: linear-gradient(135deg, 
        rgba(0, 123, 255, 0.12) 0%,
        rgba(111, 66, 193, 0.12) 25%,
        rgba(23, 162, 184, 0.12) 50%,
        rgba(40, 167, 69, 0.12) 75%,
        rgba(0, 123, 255, 0.12) 100%);
    background-size: 300% 300%;
    animation: heroGradientShift 35s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

/* Partículas flotantes en el hero */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    animation: particleFloat 20s linear infinite;
}

.particle-1 {
    width: 120px;
    height: 120px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 25s;
}

.particle-2 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 15%;
    animation-delay: -8s;
    animation-duration: 30s;
}

.particle-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 70%;
    animation-delay: -15s;
    animation-duration: 40s;
}

.particle-4 {
    width: 60px;
    height: 60px;
    top: 30%;
    left: 80%;
    animation-delay: -20s;
    animation-duration: 22s;
}

.particle-5 {
    width: 100px;
    height: 100px;
    bottom: 10%;
    right: 60%;
    animation-delay: -12s;
    animation-duration: 35s;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px) rotate(0deg);
        opacity: 0.03;
    }
    25% {
        transform: translateY(-20px) translateX(10px) rotate(90deg);
        opacity: 0.05;
    }
    50% {
        transform: translateY(-40px) translateX(-5px) rotate(180deg);
        opacity: 0.02;
    }
    75% {
        transform: translateY(-10px) translateX(15px) rotate(270deg);
        opacity: 0.04;
    }
}

/* 2. MICROINTERACCIONES EN TARJETAS - Tilt y bordes luminosos */
.technique-card,
.section-card {
    transition: all var(--duration-normal) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.technique-card::after,
.section-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(0, 123, 255, 0.1), 
        transparent);
    transition: left var(--duration-slow) var(--ease-smooth);
    pointer-events: none;
}

.technique-card:hover,
.section-card:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-8px);
    box-shadow: 
        var(--shadow-xl),
        0 0 0 1px rgba(0, 123, 255, 0.2),
        0 0 20px rgba(0, 123, 255, 0.1);
}

.technique-card:hover::after,
.section-card:hover::after {
    left: 100%;
}

/* 3. DIVISORES ENTRE SECCIONES */
.section-divider {
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%,
        rgba(0, 123, 255, 0.3) 20%,
        rgba(111, 66, 193, 0.5) 50%,
        rgba(0, 123, 255, 0.3) 80%,
        transparent 100%);
    margin: var(--space-5xl) 0;
    position: relative;
    overflow: hidden;
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent);
    animation: dividerShine 8s ease-in-out infinite;
}

@keyframes dividerShine {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
}

/*
 * Hero Stats Ribbon (disabled)
 * Original styles retained for reference only.
.stats-ribbon {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 123, 255, 0.2);
    border-bottom: 1px solid rgba(0, 123, 255, 0.2);
    padding: var(--space-2xl) 0;
    margin: var(--space-4xl) 0;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-number {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--primary-blue);
    background: linear-gradient(45deg, var(--primary-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}
 */
/* 6. PARTNERS SECTION */
.partners-section {
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(111, 66, 193, 0.08) 50%, var(--dark-bg) 100%);
    padding: var(--space-5xl) 0;
    margin: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.partners-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--modern-purple) 50%, var(--accent-cyan) 100%);
    opacity: 0.8;
}

.partners-section .section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-white);
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--space-lg);
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-2xl);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.06) 100%);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 
                0 0 20px rgba(23, 162, 184, 0.1);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.partner-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--accent-cyan) 50%, transparent 100%);
    opacity: 0.6;
}

.partner-item:hover {
    transform: translateY(-6px);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.08) 100%);
    border-color: rgba(23, 162, 184, 0.4);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4), 
                0 0 30px rgba(23, 162, 184, 0.2);
}

.partner-item:hover::before {
    opacity: 1;
    background: linear-gradient(90deg, var(--modern-purple) 0%, var(--accent-cyan) 50%, var(--modern-purple) 100%);
}

.partner-logo {
    margin-bottom: var(--space-lg);
    transition: transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 90px;
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.partner-logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.partner-item:hover .partner-logo::before {
    opacity: 1;
}

.partner-logo-img {
    max-width: 85%;
    max-height: 85%;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(1.1) contrast(1.2) saturate(1.1);
    transition: all var(--transition-normal);
    z-index: 2;
    position: relative;
}

.partner-item:hover .partner-logo {
    transform: scale(1.05);
}

.partner-item:hover .partner-logo-img {
    filter: brightness(1.3) contrast(1.3) saturate(1.2);
}

.partner-item span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-align: center;
    transition: color var(--transition-normal);
}

.partner-item:hover span {
    color: var(--text-white);
}

/* Responsive para partners */
@media (max-width: 768px) {
    .partners-section {
        padding: var(--space-4xl) 0;
    }
    
    .partners-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--space-lg);
        padding: 0 var(--space-md);
    }
    
    .partner-item {
        padding: var(--space-lg);
    }
    
    .partner-logo {
        height: 70px;
    }
    
    .partners-section .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--space-3xl);
    }
}

/* SEMANTIC SPACE CARDS */
.semantic-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
    margin: 36px auto;
    max-width: 1100px;
    padding-inline: clamp(16px, 4vw, 48px);
}

.semantic-card {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 18px;
    padding: 36px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.25);
}

.semantic-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 24px 64px rgba(0, 123, 255, 0.2);
}

.semantic-card--human {
    border-left: 5px solid rgba(255, 193, 7, 0.9);
    background: rgba(255, 193, 7, 0.16);
}

.semantic-card--generated {
    border-left: 5px solid var(--accent-cyan);
    background: rgba(23, 162, 184, 0.16);
}

.semantic-card h4 {
    color: var(--text-white);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.semantic-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.semantic-card li {
    color: var(--text-gray);
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
    font-size: 1rem;
}

.semantic-card li::before {
    content: "•";
    position: absolute;
    left: 0;
    font-size: 1.2rem;
    font-weight: 600;
    opacity: 0.7;
}

.semantic-card--human li::before {
    color: rgba(255, 193, 7, 0.9);
}

.semantic-card--generated li::before {
    color: var(--accent-cyan);
}

/* Semantic note */
.semantic-note {
    width: 100%;
    margin: 40px -32px 0;
    padding: 30px 40px;
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.2) 0%, rgba(255, 193, 7, 0.18) 100%);
    border-left: 5px solid var(--accent-cyan);
    border-radius: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

.semantic-note .emphasis {
    font-weight: 600;
}

/* Responsive para semantic cards */
@media (max-width: 768px) {
    .semantic-cards {
        grid-template-columns: 1fr;
        gap: 20px;
        padding-inline: clamp(16px, 4vw, 24px);
    }
    
    .semantic-card {
        padding: 20px;
    }
    
    .semantic-note {
        margin: 40px -16px 0;
        padding: 20px 24px;
    }
}

/* 7. ADVANCED PARTITIONING ALGORITHM STYLES */

/* Subtítulo */
.apa-subtitle {
    color: var(--text-white);
    font-weight: 600;
    font-size: 1.3rem;
    margin-top: 48px;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 8px;
}

/* Callout introductorio */
.apa-callout {
    display: flex;
    gap: 16px;
    padding: 24px;
    margin: 32px 0;
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.12) 0%, rgba(40, 167, 69, 0.12) 100%);
    border-left: 4px solid var(--accent-cyan);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.apa-callout-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.apa-callout-content p {
    margin-bottom: 12px;
    color: var(--text-gray);
    line-height: 1.6;
}

.apa-callout-content p strong {
    color: var(--text-white);
}

.apa-callout-content p:last-child {
    margin-bottom: 0;
}

/* Figura centrada y responsive */
.apa-figure {
    text-align: center;
    margin: 40px 0;
}

.apa-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Timeline horizontal de pasos */
.apa-timeline {
    display: flex;
    gap: 24px;
    margin: 48px 0;
    padding: 32px;
    background: rgba(13, 27, 42, 0.4);
    border-radius: 16px;
    backdrop-filter: blur(6px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    position: relative;
}

/* Continuous timeline track */
.apa-timeline::before {
    content: '';
    position: absolute;
    top: 56px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--primary-blue) 50%, var(--accent-cyan) 100%);
    z-index: 0;
}

.apa-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.apa-step-number {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary-blue));
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 4px 16px rgba(23, 162, 184, 0.3);
}

.apa-step-icon {
    font-size: 0.7rem;
    margin-top: -2px;
}

/* Two-column layout */
.apa-layout {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr);
    gap: 32px;
    margin: 48px 0;
}

.apa-layout-media {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.apa-layout-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.apa-step-content h4 {
    color: var(--text-white);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.apa-step-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

.apa-card {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.apa-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.15);
}

.apa-card h3 {
    color: var(--text-white);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
}

/* Modificadores de tarjetas */
.apa-card--requirements {
    border-left: 4px solid var(--success-green);
    background: rgba(33, 218, 115, 0.08);
}

/* Lista bullets personalizada */
.apa-bullets {
    list-style: none;
    padding: 0;
}

.apa-bullets li {
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
    color: var(--text-gray);
    line-height: 1.6;
}

.apa-bullets li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--success-green);
    font-weight: bold;
    font-size: 1rem;
}

/* Nota adicional */
.apa-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 16px;
    font-style: italic;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
}

/* Glosario compacto */
.apa-glossary {
    margin: 40px 0;
}

.apa-definitions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    justify-content: center;
}

.apa-definition {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 16px 24px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    width: 100%;
}

.apa-definition:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.apa-definition dt {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 8px;
    position: relative;
}

.apa-definition dt::before {
    content: "🔁";
    margin-right: 8px;
    font-size: 1rem;
}

.apa-definition dd {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* Badges para el glosario */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 8px;
}

.badge-train {
    background: rgba(33, 218, 115, 0.2);
    color: var(--success-green);
    border: 1px solid rgba(33, 218, 115, 0.3);
}

.badge-valid {
    background: rgba(23, 162, 184, 0.2);
    color: var(--accent-cyan);
    border: 1px solid rgba(23, 162, 184, 0.3);
}

.badge-base {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

/* Conclusión */
.apa-conclusion {
    margin: 40px 0 0;
    padding: 24px;
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.08) 0%, rgba(23, 162, 184, 0.08) 100%);
    border-top: 3px solid rgba(255, 193, 7, 0.6);
    border-radius: 12px;
}

.apa-conclusion h3 {
    color: var(--text-white);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.apa-conclusion p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 12px;
}

.apa-conclusion p:last-child {
    margin-bottom: 0;
}

.apa-cta {
    color: var(--text-white) !important;
    margin-top: 12px;
    font-weight: 500;
}

/* Responsive design */
@media (max-width: 900px) {
    .apa-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .apa-timeline {
        flex-direction: column;
        gap: 32px;
        padding: 24px;
    }
    
    .apa-timeline::before {
        top: 24px;
        bottom: 24px;
        left: 24px;
        right: auto;
        width: 2px;
        height: auto;
        background: linear-gradient(180deg, var(--accent-cyan) 0%, var(--primary-blue) 50%, var(--accent-cyan) 100%);
    }
    
    .apa-step-number {
        flex-direction: row;
        gap: 4px;
    }
    
    .apa-step {
        text-align: left;
        display: flex;
        gap: 16px;
        align-items: flex-start;
    }
    
    .apa-step-number {
        margin: 0;
        flex-shrink: 0;
    }
    
    .apa-card {
        padding: 24px;
    }
    
    .apa-definitions {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .apa-callout {
        flex-direction: column;
        gap: 12px;
    }
    
    .apa-callout-icon {
        align-self: flex-start;
    }
    
    .apa-subtitle {
        margin-top: 32px;
        font-size: 1.2rem;
    }
    
    .apa-bullets li {
        padding-left: 28px;
    }
    
    .apa-bullets li::before {
        left: 0;
        top: 6px;
    }
    
    .apa-definition dd {
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }
    
    .badge {
        margin-left: 0;
        margin-top: 4px;
    }
}

/* 8. TIMELINE SECTION */
.timeline-section {
    padding: var(--space-4xl) 0;
    margin: var(--space-5xl) 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--space-3xl) auto 0;
    padding: 0 var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom,
        var(--primary-blue) 0%,
        var(--accent-cyan) 50%,
        rgba(255, 255, 255, 0.2) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin: var(--space-3xl) 0;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-marker {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 3px solid var(--primary-blue);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.timeline-item.active .timeline-marker {
    background: var(--primary-blue);
    box-shadow: 0 0 20px rgba(0, 123, 255, 0.5);
    animation: timelinePulse 2s ease-in-out infinite;
}

@keyframes timelinePulse {
    0%, 100% { transform: translateX(-50%) scale(1); }
    50% { transform: translateX(-50%) scale(1.2); }
}

.timeline-content {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 123, 255, 0.2);
    width: calc(50% - 40px);
    margin: 0 var(--space-xl);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: calc(50% + var(--space-xl));
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: calc(50% + var(--space-xl));
}

/* 7. PARALLAX MEJORADO PARA HERO */
.hero-badge,
.hero h1,
.hero-actions {
    transition: transform var(--duration-slow) var(--ease-smooth);
}

/* ========================================
   RESPONSIVE PARA NUEVOS COMPONENTES
======================================== */

@media (max-width: 768px) {
    .stats-container {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .stat-number {
        font-size: var(--font-size-4xl);
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }
    
    .timeline::before {
        left: var(--space-lg);
    }
    
    .timeline-item {
        flex-direction: row !important;
        margin-left: var(--space-2xl);
    }
    
    .timeline-marker {
        left: var(--space-lg);
    }
    
    .timeline-content {
        width: calc(100% - var(--space-4xl));
        margin: 0 0 0 var(--space-2xl) !important;
    }
    
    .particle {
        display: none; /* Ocultar partículas en móvil para mejor performance */
    }
}

/* ========================================
   RESPETO A PREFERS-REDUCED-MOTION
======================================== */

@media (prefers-reduced-motion: reduce) {
    .hero {
        animation: none !important;
        background: var(--gradient-hero) !important;
    }
    
    .particle {
        animation: none !important;
        display: none !important;
    }
    
    .section-divider::before {
        animation: none !important;
    }
    
    .timeline-item.active .timeline-marker {
        animation: none !important;
    }
    
    .technique-card:hover,
    .section-card:hover {
        transform: translateY(-8px) !important;
    }
    
    .technique-card::after,
    .section-card::after {
        display: none !important;
    }
}

/* ========================================
   FSA IMAGE ALTERNATIVE - Glassmorphism y Halo
======================================== */

/* START FSA ALTERNATIVE */
.fsa-container-alternative {
    margin: var(--space-2xl) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.fsa-glassmorphism {
    position: relative;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(0, 123, 255, 0.2);
    padding: var(--space-2xl);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 650px;
    margin: 0 auto;
}

.fsa-halo {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, 
        rgba(0, 123, 255, 0.1) 0%,
        rgba(111, 66, 193, 0.05) 30%,
        transparent 70%);
    animation: fsaHaloPulse 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes fsaHaloPulse {
    0%, 100% { 
        transform: scale(1) rotate(0deg);
        opacity: 0.3;
    }
    50% { 
        transform: scale(1.1) rotate(180deg);
        opacity: 0.6;
    }
}

.fsa-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 4px 20px rgba(0, 123, 255, 0.2));
    transition: all var(--duration-normal) var(--ease-smooth);
    cursor: zoom-in;
}

.fsa-glassmorphism:hover .fsa-image {
    transform: scale(1.02);
    filter: drop-shadow(0 8px 30px rgba(0, 123, 255, 0.4));
}

.fsa-glassmorphism:hover {
    border-color: rgba(0, 123, 255, 0.4);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(0, 123, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.fsa-glassmorphism:hover .fsa-halo {
    animation-duration: 2s;
}
/* END FSA ALTERNATIVE */

/* TODO: revert FSA alternative - Original styles 
.image-container {
    background: var(--neutral-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    backdrop-filter: blur(2px);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
*/

@media (max-width: 768px) {
    .fsa-glassmorphism {
        padding: var(--space-lg);
        margin: 0 var(--space-md);
    }
    
    .fsa-halo {
        animation: none; /* Reducir animaciones en móvil */
    }
}

@media (prefers-reduced-motion: reduce) {
    .fsa-halo {
        animation: none !important;
        opacity: 0.2 !important;
    }
    
    .fsa-glassmorphism:hover .fsa-image {
        transform: none !important;
    }
}

/* ========================================
   TARJETAS DE VENTAJAS Y DESVENTAJAS
======================================== */

.advantages-card,
.disadvantages-card {
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    position: relative;
    backdrop-filter: blur(5px);
    transition: all var(--duration-normal) var(--ease-smooth);
}

.advantages-card {
    background: rgba(76, 175, 80, 0.08);
    border-left-color: #4caf50;
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.disadvantages-card {
    background: rgba(244, 67, 54, 0.08);
    border-left-color: #f44336;
    border: 1px solid rgba(244, 67, 54, 0.2);
}

.advantages-card:hover {
    background: rgba(76, 175, 80, 0.12);
    border-color: rgba(76, 175, 80, 0.3);
    transform: translateX(4px);
}

.disadvantages-card:hover {
    background: rgba(244, 67, 54, 0.12);
    border-color: rgba(244, 67, 54, 0.3);
    transform: translateX(4px);
}

.advantages-card h4,
.disadvantages-card h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.advantages-card h4 {
    color: #4caf50;
}

.disadvantages-card h4 {
    color: #f44336;
}

.advantages-card ul,
.disadvantages-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantages-card li,
.disadvantages-card li {
    margin-bottom: var(--space-sm);
    padding-left: var(--space-md);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

.advantages-card li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #4caf50;
    font-weight: var(--font-weight-bold);
}

.disadvantages-card li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #f44336;
    font-weight: var(--font-weight-bold);
}

.method-details {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(0, 123, 255, 0.05);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-blue);
}

.method-details h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    color: var(--primary-blue);
}

.method-details p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: var(--font-size-sm);
}

/* ========================================
   RESPONSIVE PARA TARJETAS
======================================== */

@media (max-width: 768px) {
    .advantages-card,
    .disadvantages-card,
    .method-details {
        padding: var(--space-md);
        margin: var(--space-md) 0;
    }
    
    .advantages-card li,
    .disadvantages-card li {
        font-size: var(--font-size-xs);
        padding-left: var(--space-sm);
    }
    
    .advantages-card h4,
    .disadvantages-card h4,
    .method-details h4 {
        font-size: var(--font-size-base);
    }
}

@media (prefers-reduced-motion: reduce) {
    .advantages-card:hover,
    .disadvantages-card:hover {
        transform: none !important;
    }
}

/* ========================================
   SECCIÓN DE CITACIÓN
======================================== */

.citation-section {
    padding: var(--space-5xl) 0;
    background: var(--gradient-purple);
    border-top: 2px solid transparent;
    border-image: var(--gradient-purple) 1;
    position: relative;
    overflow: hidden;
}

.citation-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--pattern-dots);
    background-size: 20px 20px;
    opacity: 0.03;
    pointer-events: none;
}

.citation-section .container {
    position: relative;
    z-index: 2;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.citation-section .section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-white);
    text-align: center;
    margin-bottom: var(--space-md);
}

.citation-section .section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-4xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.citation-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.08) 100%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    backdrop-filter: var(--blur-backdrop);
    box-shadow: 0 20px 50px rgba(0, 123, 255, 0.25);
    position: relative;
    overflow: hidden;
}

.citation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-purple);
}

.bibtex-badge {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background: rgba(111, 66, 193, 0.9);
    color: var(--text-white);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    backdrop-filter: blur(8px);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bibtex-block {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bibtex-block pre {
    margin: 0;
    padding: 0;
    overflow-x: auto;
}

.bibtex-block code {
    font-family: 'Source Code Pro', 'Monaco', 'Menlo', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--text-gray);
    white-space: pre;
    display: block;
}

.bibtex-actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    color: var(--text-white);
    border: none;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 16px rgba(0, 123, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary::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 var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 123, 255, 0.4);
}

.btn-primary.success {
    background: linear-gradient(135deg, var(--success-green) 0%, #20c997 100%);
    box-shadow: 0 4px 16px rgba(40, 167, 69, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text-white);
    transform: translateY(-1px);
}

/* ========================================
   RESPONSIVE PARA CITACIÓN
======================================== */

@media (max-width: 768px) {
    .citation-section {
        padding: var(--space-4xl) 0;
    }
    
    .citation-card {
        padding: var(--space-lg);
    }
    
    .bibtex-badge {
        top: var(--space-md);
        right: var(--space-md);
    }
    
    .bibtex-block {
        padding: var(--space-md);
    }
    
    .bibtex-block code {
        font-size: var(--font-size-xs);
    }
    
    .bibtex-actions {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .citation-section .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .citation-section .section-description {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-3xl);
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn-primary:hover,
    .btn-secondary:hover {
        transform: none !important;
    }
    
    .btn-primary::before {
        display: none;
    }
}

/* Final del archivo CSS */