/* ============================================
           CSS VARIABLES - Professional Corporate Palette
           ============================================ */
        :root {
            /* Brand / Primary (indigo tech) */
            --color-primary: #3B3FAF;
            --color-primary-hover: #32389A;
            --color-primary-soft: #E4E7FF;

            /* Secondary accent (cyan) */
            --color-accent: #0EA5E9;
            --color-accent-soft: #E0F6FF;

            /* Status / success */
            --color-success: #00C58E;

            /* Neutral scale */
            --gray-900: #0F172A;
            --gray-800: #111827;
            --gray-700: #1F2937;
            --gray-600: #4B5563;
            --gray-500: #6B7280;
            --gray-300: #D1D5DB;
            --gray-200: #E5E7EB;
            --gray-100: #F3F4F6;
            --gray-50: #F9FAFB;

            /* Light theme tokens (default) */
            --bg-main: #FFFFFF;
            --bg-elevated: #F9FAFB;
            --bg-elevated-soft: #F3F4F6;

            --text-main: #0F172A;
            --text-body: #111827;
            --text-muted: #6B7280;

            --border-color: #E5E7EB;

            /* Legacy variables (mapped to new system) */
            --color-text-main: var(--text-main);
            --color-text-body: var(--text-body);
            --color-text-muted: var(--text-muted);
            --color-surface: var(--bg-main);
            --color-surface-soft: var(--bg-elevated);
            --color-surface-dark: var(--bg-elevated-soft);
            --color-border: var(--border-color);
            --color-accent-1: var(--color-primary);
            --color-accent-2: var(--color-accent);

            --bg-light: var(--bg-main);
            --bg-secondary: var(--bg-elevated);
            --bg-accent-1: var(--bg-elevated-soft);
            --bg-accent-2: var(--bg-elevated-soft);
            --text-primary: var(--text-main);
            --text-secondary: var(--text-body);
            --accent-primary: var(--color-primary);
            --accent-secondary: var(--color-primary-hover);
            --accent-tertiary: var(--color-primary);
            --border-light: var(--border-color);
            --white: var(--bg-main);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

            /* Spacing System */
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 32px;
            --space-xl: 40px;
            --space-2xl: 64px;
            --space-3xl: 80px;

            /* Border Radius - Professional, minimal */
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;

            /* Transitions - Increased to 0.5s for color transitions to reduce vibration */
            --transition-fast: 0.2s ease;
            --transition-base: 0.5s ease;
            --transition-slow: 0.7s ease;

            /* Stats & Metrics Colors */
            --stats-color-1: var(--color-primary);
            --stats-color-2: var(--color-primary);
            --stats-color-3: var(--color-primary);

            /* Skills Colors - Dos azules de la paleta en esquinas opuestas */
            --skill-product: var(--color-primary);
            /* Indigo #3B3FAF - esquina superior izquierda */
            --skill-blockchain: var(--color-accent);
            /* Cyan #0EA5E9 - esquina superior derecha */
            --skill-tech: var(--color-accent);
            /* Cyan #0EA5E9 - esquina inferior izquierda */
            --skill-soft: var(--color-primary);
            /* Indigo #3B3FAF - esquina inferior derecha */

            /* Project Badges */
            --badge-product: var(--color-primary);
            --badge-blockchain: var(--color-primary);
            --badge-api: var(--color-accent);
            --badge-automation: #F59E0B;
        }

        /* Dark Mode Variables */
        [data-theme="dark"] {
            /* Main backgrounds */
            --bg-main: #020617;
            --bg-elevated: #0B1220;
            --bg-elevated-soft: #111827;

            /* Text hierarchy */
            --text-main: #F9FAFB;
            --text-body: #E5E7EB;
            --text-muted: #9CA3AF;

            /* Borders / dividers */
            --border-color: #1F2937;

            /* Brand / accent colors - blue (same as light mode) */
            --color-primary: #3B3FAF;
            --color-primary-hover: #32389A;
            --color-primary-soft: #1E2379;

            /* Accent color same as primary (blue) */
            --color-accent: #3B3FAF;
            --color-accent-soft: #1E2379;

            /* New warm accent for future use */
            --color-accent-warm: #F59E0B;

            --color-success: #00C58E;

            /* Legacy mappings - all blue */
            --accent-1: var(--color-accent);
            --accent-1-soft: var(--color-accent-soft);
            --accent-link: var(--color-accent);
            --accent-secondary: var(--color-accent);
            --accent-tertiary: var(--color-accent);

            /* Legacy variables (mapped to new system) */
            --color-text-main: var(--text-main);
            --color-text-body: var(--text-body);
            --color-text-muted: var(--text-muted);
            --color-surface: var(--bg-main);
            --color-surface-soft: var(--bg-elevated);
            --color-surface-dark: var(--bg-elevated);
            --color-border: var(--border-color);
            --color-accent-1: var(--accent-1);
            --color-accent-2: var(--accent-link);

            --bg-light: var(--bg-main);
            --bg-secondary: var(--bg-elevated);
            --bg-accent-1: var(--bg-elevated);
            --bg-accent-2: var(--bg-elevated);
            --text-primary: var(--text-main);
            --text-secondary: var(--text-body);
            --accent-primary: var(--color-accent);
            --accent-secondary: var(--color-accent);
            --accent-tertiary: var(--color-accent);
            --border-light: var(--border-color);
            --white: var(--bg-elevated);

            /* Skills Colors - mismos colores azules que en light mode */
            --skill-product: #3B3FAF;
            /* Indigo #3B3FAF - esquina superior izquierda */
            --skill-blockchain: #3B3FAF;
            /* Azul #3B3FAF - esquina superior derecha (mismo que primary en dark) */
            --skill-tech: #3B3FAF;
            /* Azul #3B3FAF - esquina inferior izquierda (mismo que primary en dark) */
            --skill-soft: #3B3FAF;
            /* Indigo #3B3FAF - esquina inferior derecha */
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Exo 2', sans-serif;
            background-color: var(--bg-secondary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            transition: background-color var(--transition-base), color var(--transition-base);
            font-weight: 400;
        }

        [data-theme="dark"] body {
            background-color: var(--bg-main);
        }

        /* ============================================
           MAIN SECTIONS (Experiencia, Web3, Blog)
           ============================================ */
        .main-section {
            display: block;
        }

        .main-section:not(.active) {
            display: none !important;
        }

        /* Asegurar que la sección Blog se muestre cuando está activa */
        #blog.main-section.active {
            display: block !important;
        }

        /* Asegurar que las secciones activas sean visibles */
        .main-section.active {
            display: block !important;
            visibility: visible !important;
            opacity: 1 !important;
        }

        /* Asegurar que el contenido dentro de blog sea visible */
        #blog.active section,
        #blog.active .section {
            display: block !important;
            visibility: visible !important;
        }

        .nav-section-link.active {
            color: var(--accent-primary);
        }

        .nav-section-link.active::after {
            width: 100%;
        }

        [data-theme="dark"] .nav-section-link.active {
            color: var(--color-accent);
        }

        [data-theme="dark"] .nav-section-link.active::after {
            background: var(--color-accent);
            width: 100%;
        }

        /* Typography */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: 'Exo 2', sans-serif;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--color-primary);
        }

        /* Dark mode: títulos en blanco */
        [data-theme="dark"] h1,
        [data-theme="dark"] h2,
        [data-theme="dark"] h3,
        [data-theme="dark"] h4,
        [data-theme="dark"] h5,
        [data-theme="dark"] h6 {
            color: var(--text-main);
        }

        h1 {
            font-size: clamp(2.5rem, 8vw, 4.5rem);
            margin-bottom: var(--space-md);
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            margin-bottom: var(--space-md);
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            margin-bottom: var(--space-sm);
            font-weight: 600;
        }

        p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-weight: 400;
        }

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

        /* ============================================
           UTILITY CLASSES
           ============================================ */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-xl);
        }

        /* Solo ocultar contenido animado cuando JS está activo (evita página en blanco sin JS) */
        html.js .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

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

        /* ============================================
           NAVIGATION
           ============================================ */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            background: var(--bg-secondary);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            padding: var(--space-md) 0;
            transition: all var(--transition-base);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
        }

        [data-theme="dark"] nav {
            background: var(--bg-elevated);
            border-bottom-color: var(--border-light);
        }

        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-xl);
        }

        .nav-logo {
            font-family: 'Exo 2', sans-serif;
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-primary);
            text-decoration: none;
            transition: transform var(--transition-base);
            letter-spacing: -0.02em;
        }

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

        /* Dark mode nav logo - blue */
        [data-theme="dark"] .nav-logo {
            color: var(--color-accent);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: var(--space-lg);
            align-items: center;
        }

        .nav-menu li a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: var(--space-xs) 0;
            transition: color var(--transition-base);
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-primary);
            transition: width var(--transition-base);
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--accent-primary);
        }

        .nav-menu li a:hover::after,
        .nav-menu li a.active::after {
            width: 100%;
        }

        /* Dark mode: blue hover color for navigation links */
        [data-theme="dark"] .nav-menu li a:hover,
        [data-theme="dark"] .nav-menu li a.active {
            color: var(--color-accent);
        }

        [data-theme="dark"] .nav-menu li a:hover::after,
        [data-theme="dark"] .nav-menu li a.active::after {
            background: var(--color-accent);
            width: 100%;
        }

        .nav-cta {
            background: var(--color-primary) !important;
            color: #FFFFFF !important;
            padding: var(--space-xs) var(--space-md) !important;
            border-radius: var(--radius-sm);
            font-weight: 600 !important;
            border: 2px solid var(--color-primary) !important;
            opacity: 1 !important;
        }

        .nav-cta::after {
            display: none;
        }

        .nav-cta:hover {
            background: var(--color-primary-hover) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
            color: #FFFFFF !important;
            opacity: 1 !important;
            border-color: var(--color-primary-hover) !important;
        }

        /* Dark mode nav-cta - blue */
        [data-theme="dark"] .nav-cta {
            background: var(--color-accent) !important;
            border-color: var(--color-accent) !important;
        }

        [data-theme="dark"] .nav-cta:hover {
            background: var(--color-primary-hover) !important;
            border-color: var(--color-primary-hover) !important;
        }

        /* Asegurar visibilidad en modo light */
        [data-theme="light"] .nav-cta,
        body:not([data-theme]) .nav-cta {
            background: var(--color-primary) !important;
            color: #FFFFFF !important;
            border-color: var(--color-primary) !important;
        }

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

        .lang-switch {
            display: flex;
            gap: var(--space-xs);
        }

        .lang-btn {
            background: transparent;
            border: 1px solid var(--border-light);
            padding: var(--space-xs);
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            min-width: 44px;
            overflow: hidden;
        }

        .lang-btn .flag-icon {
            width: 24px;
            height: 18px;
            object-fit: cover;
            border-radius: 2px;
            transition: transform var(--transition-base);
        }

        .lang-btn.active {
            background: var(--accent-primary);
            border-color: var(--accent-primary);
            box-shadow: 0 2px 4px rgba(59, 63, 175, 0.2);
        }

        .lang-btn.active .flag-icon {
            transform: scale(1.1);
        }

        .lang-btn:hover:not(.active) {
            border-color: var(--accent-primary);
            transform: translateY(-1px);
        }

        /* Dark mode lang-btn - blue */
        [data-theme="dark"] .lang-btn.active {
            background: var(--color-accent);
            border-color: var(--color-accent);
            box-shadow: 0 2px 4px rgba(59, 63, 175, 0.2);
        }

        [data-theme="dark"] .lang-btn:hover:not(.active) {
            border-color: var(--color-accent);
        }

        .lang-btn:hover:not(.active) .flag-icon {
            transform: scale(1.05);
        }

        .theme-toggle {
            background: transparent;
            border: 1px solid var(--border-light);
            padding: var(--space-xs);
            cursor: pointer;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            transition: all var(--transition-base);
            min-height: 44px;
            min-width: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 600;
        }

        .theme-toggle:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        /* Dark mode theme-toggle - blue */
        [data-theme="dark"] .theme-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .nav-switch {
            background: transparent;
            border: 1px solid var(--border-light);
            padding: var(--space-xs) var(--space-sm);
            cursor: pointer;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 600;
            font-family: 'Exo 2', sans-serif;
            font-size: 0.85rem;
            transition: all var(--transition-base);
            text-decoration: none;
            display: flex;
            align-items: center;
            min-height: 44px;
        }

        .nav-switch:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            color: var(--text-primary);
            /* 44x44 = objetivo táctil mínimo recomendado */
            width: 44px;
            height: 44px;
            padding: 0;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
        }

        .mobile-menu-toggle:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* Icono hamburguesa: 3 barras que se transforman en ✕ al abrir */
        .hamburger,
        .hamburger::before,
        .hamburger::after {
            display: block;
            width: 22px;
            height: 2px;
            background: currentColor;
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.2s ease;
        }

        .hamburger {
            position: relative;
        }

        .hamburger::before,
        .hamburger::after {
            content: '';
            position: absolute;
            left: 0;
        }

        .hamburger::before {
            top: -7px;
        }

        .hamburger::after {
            top: 7px;
        }

        .mobile-menu-toggle[aria-expanded="true"] .hamburger {
            background: transparent;
        }

        .mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (prefers-reduced-motion: reduce) {

            .hamburger,
            .hamburger::before,
            .hamburger::after {
                transition: none;
            }
        }

        /* ============================================
           HERO SECTION
           ============================================ */
        .hero {
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding-top: 120px;
            padding-bottom: var(--space-3xl);
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--color-primary-soft) 50%, var(--color-accent-soft) 100%);
            background-size: 200% 200%;
            animation: gradientShift 15s ease infinite;
            position: relative;
            overflow: hidden;
        }

        @keyframes gradientShift {

            0%,
            100% {
                background-position: 0% 50%;
            }

            50% {
                background-position: 100% 50%;
            }
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 63, 175, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            /* Slower float animation (30s instead of 20s) for less disruption */
            animation: float 30s ease-in-out infinite;
        }

        @keyframes float {

            0%,
            100% {
                transform: translate(0, 0) scale(1);
            }

            50% {
                transform: translate(-20px, -20px) scale(1.1);
            }
        }

        /* Dark mode hero: static gradient (no animation) for reduced saturation and better UX */
        [data-theme="dark"] .hero {
            background: linear-gradient(135deg, #0B1220 0%, #111827 50%, #0D1525 100%);
            background-size: 100% 100%;
            /* Remove gradientShift animation in dark mode */
            animation: none;
        }

        /* Blue decorative element in dark mode hero */
        [data-theme="dark"] .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(59, 63, 175, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            animation: float 35s ease-in-out infinite reverse;
            z-index: 0;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: var(--space-2xl);
            align-items: center;
            margin-bottom: var(--space-3xl);
        }

        /* 769px para no solapar con las reglas móviles de max-width: 768px */
        @media (min-width: 769px) {
            .hero-grid {
                grid-template-columns: 2fr 1fr;
            }
        }

        .hero-content h1 {
            margin-bottom: var(--space-md);
            color: var(--color-primary);
            position: relative;
        }

        /* Dark mode: hero title en blanco */
        [data-theme="dark"] .hero-content h1 {
            color: var(--text-main);
        }

        /* Blue accent underline for hero title in dark mode */
        [data-theme="dark"] .hero-content h1::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 120px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent) 0%, rgba(59, 63, 175, 0.3) 100%);
            border-radius: 2px;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: var(--space-lg);
            line-height: 1.8;
            max-width: 650px;
            font-weight: 400;
        }

        .hero-subtitle:first-of-type {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            font-weight: 500;
            letter-spacing: -0.01em;
            font-size: 1.25rem;
        }

        .cta-group {
            display: flex;
            gap: var(--space-md);
            flex-wrap: wrap;
        }

        .btn {
            padding: var(--space-md) var(--space-xl);
            border: none;
            border-radius: var(--radius-md);
            font-family: 'Exo 2', sans-serif;
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            display: inline-block;
            text-align: center;
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #FFFFFF;
            font-weight: 600;
            border: none;
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn-secondary:hover {
            background: var(--color-primary-soft);
            transform: translateY(-2px);
        }

        /* Dark mode button styles - blue only */
        [data-theme="dark"] .btn-primary {
            background: var(--color-accent);
            color: #FFFFFF;
        }

        [data-theme="dark"] .btn-primary:hover {
            background: var(--color-primary-hover);
        }

        [data-theme="dark"] .btn-secondary {
            background: transparent;
            border: 1px solid var(--color-accent);
            color: var(--color-accent);
        }

        [data-theme="dark"] .btn-secondary:hover {
            background: var(--color-accent-soft);
        }

        /* CTA terciaria (descargar CV): texto con icono, sin competir visualmente
           con los botones primario/secundario */
        .btn-ghost {
            background: transparent;
            border: none;
            padding: var(--space-sm) var(--space-md);
            color: var(--text-body);
            gap: var(--space-xs);
        }

        .btn-ghost:hover {
            color: var(--color-primary);
        }

        [data-theme="dark"] .btn-ghost:hover {
            color: var(--color-accent);
        }

        .btn-ghost svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        /* Dark mode CTA buttons: subtle blue accent underline on hover */
        [data-theme="dark"] .btn-primary:hover {
            position: relative;
        }

        [data-theme="dark"] .btn-primary:hover::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 2px;
            background: var(--color-accent);
            opacity: 0.6;
        }

        .hero-image {
            width: 100%;
            max-width: 400px;
            aspect-ratio: 3 / 4;
            height: auto;
            margin-left: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            position: relative;
            transition: all var(--transition-base);
            opacity: 1;
            background-color: var(--bg-elevated);
        }

        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            min-height: 100%;
            object-position: center 30%;
            image-rendering: -webkit-optimize-contrast;
            image-rendering: crisp-edges;
        }

        /* Responsive hero image */
        @media (max-width: 768px) {
            .hero-image {
                max-width: 320px;
                margin: 0 auto;
            }
        }

        @media (max-width: 480px) {
            .hero-image {
                max-width: 280px;
            }
        }

        .hero-image:empty::after {
            content: '';
            display: block;
            width: 100%;
            padding-bottom: 133.33%;
            /* 4/3 aspect ratio */
            background: linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-accent-soft) 100%);
        }

        .hero-image:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        [data-theme="dark"] .hero-image {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        [data-theme="dark"] .hero-image:hover {
            box-shadow: var(--shadow-md);
        }

        /* Stats Section */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
            padding-top: var(--space-lg);
            border-top: 1px solid var(--border-light);
        }

        .stat-card {
            text-align: center;
        }

        .stat-value {
            font-family: 'Exo 2', sans-serif;
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: var(--space-xs);
            letter-spacing: -0.02em;
        }

        .stat-value.counter {
            transition: all 0.3s ease;
        }

        .stat-value.counter.animating {
            transform: scale(1.1);
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        /* Dark mode stats - all blue */
        [data-theme="dark"] .stat-value {
            color: var(--color-accent);
        }

        [data-theme="dark"] .hero-stats .stat-card:first-child .stat-value {
            color: var(--color-accent);
        }

        [data-theme="dark"] .stat-label {
            color: var(--text-muted);
        }

        /* ============================================
           SECTIONS
           ============================================ */
        .section {
            padding: var(--space-3xl) 0;
        }

        .section-light {
            background: var(--bg-secondary);
        }

        .section-dark {
            background: var(--bg-elevated);
            color: var(--text-body);
        }

        .section-dark h2,
        .section-dark h3 {
            color: var(--text-main);
        }

        .section-dark p {
            color: var(--text-body);
        }

        .section-warm {
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: var(--space-3xl);
            max-width: 900px;
        }

        .section-header h2 {
            margin-bottom: var(--space-md);
            color: var(--color-primary);
        }

        /* Dark mode: section headers en blanco */
        [data-theme="dark"] .section-header h2 {
            color: var(--text-main);
        }

        .section-dark .section-header h2 {
            color: var(--text-main);
            font-weight: 700;
        }

        .section-header p {
            font-size: 1.15rem;
            line-height: 1.8;
            font-weight: 400;
        }

        /* Hide empty paragraphs in section headers */
        .section-header p:empty {
            display: none;
        }

        .section-kicker {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-secondary);
            margin-bottom: var(--space-xs);
        }

        .section-subtitle {
            max-width: 520px;
            margin: 0;
        }

        /* ============================================
           SERVICES GRID
           ============================================ */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
            margin-top: var(--space-lg);
            align-items: stretch;
        }

        .service-card {
            background: var(--white);
            padding: var(--space-lg);
            border-radius: 8px;
            border: none;
            border-top: 6px solid;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        /* Colores específicos por institución */
        .cedeu-card {
            border-top-color: #003366;
        }

        .santander-card {
            border-top-color: #EC0000;
        }

        .medusa-card {
            border-top-color: #8B5CF6;
        }

        /* ============================================
           TEACHING CARDS - Differentiated backgrounds
           ============================================ */
        /* CEDEU Card - Blue theme */
        [data-theme="dark"] .cedeu-card {
            background: linear-gradient(180deg, rgba(0, 51, 102, 0.15) 0%, var(--bg-elevated-soft) 100%);
            border: 1px solid rgba(0, 51, 102, 0.3);
            border-top: 4px solid #003366;
        }

        [data-theme="dark"] .cedeu-card:hover {
            background: linear-gradient(180deg, rgba(0, 51, 102, 0.25) 0%, rgba(10, 24, 37, 0.9) 100%);
            border-top-color: #004488;
            box-shadow: 0 8px 24px rgba(0, 51, 102, 0.3), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        /* Santander Card - Red theme */
        [data-theme="dark"] .santander-card {
            background: linear-gradient(180deg, rgba(236, 0, 0, 0.15) 0%, var(--bg-elevated-soft) 100%);
            border: 1px solid rgba(236, 0, 0, 0.3);
            border-top: 4px solid #EC0000;
        }

        [data-theme="dark"] .santander-card:hover {
            background: linear-gradient(180deg, rgba(236, 0, 0, 0.25) 0%, rgba(42, 10, 10, 0.9) 100%);
            border-top-color: #FF2222;
            box-shadow: 0 8px 24px rgba(236, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        /* Medusa Card - Purple theme */
        [data-theme="dark"] .medusa-card {
            background: linear-gradient(180deg, rgba(139, 92, 246, 0.15) 0%, var(--bg-elevated-soft) 100%);
            border: 1px solid rgba(139, 92, 246, 0.3);
            border-top: 4px solid #8B5CF6;
        }

        [data-theme="dark"] .medusa-card:hover {
            background: linear-gradient(180deg, rgba(139, 92, 246, 0.25) 0%, rgba(26, 15, 46, 0.9) 100%);
            border-top-color: #A78BFA;
            box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        /* Light mode: subtle background tints */
        .cedeu-card {
            background: linear-gradient(180deg, rgba(0, 51, 102, 0.03) 0%, var(--white) 100%);
        }

        .santander-card {
            background: linear-gradient(180deg, rgba(236, 0, 0, 0.03) 0%, var(--white) 100%);
        }

        .medusa-card {
            background: linear-gradient(180deg, rgba(139, 92, 246, 0.03) 0%, var(--white) 100%);
        }

        /* Hover Effects */
        .service-card:hover {
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
            transform: translateY(-4px);
        }

        .cedeu-card:hover {
            border-top-width: 8px;
        }

        .santander-card:hover {
            border-top-width: 8px;
        }

        .medusa-card:hover {
            border-top-width: 8px;
        }

        /* ============================================
           DARK MODE STYLES - Producto & Web3 Section
           ============================================ */
        /* Section background: horizontal gradient for depth and prominence */
        [data-theme="dark"] #producto.section-light {
            background: linear-gradient(90deg, #0A1120 0%, #0B1220 50%, #0D1525 100%);
            padding: calc(var(--space-3xl) + var(--space-xl)) 0;
            position: relative;
        }

        /* Add subtle visual element under section title with blue accent */
        [data-theme="dark"] #producto .section-header h2 {
            position: relative;
            color: var(--text-main);
            font-weight: 700;
            padding-bottom: var(--space-md);
            line-height: 1.4;
        }

        [data-theme="dark"] #producto .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent) 0%, rgba(59, 63, 175, 0.4) 100%);
            border-radius: 2px;
        }

        /* Improve paragraph text contrast in dark mode */
        [data-theme="dark"] #producto .section-header p {
            color: var(--text-body);
            line-height: 1.85;
        }

        /* Service cards: elevated appearance with blue accent border */
        [data-theme="dark"] #producto .service-card {
            background: var(--bg-elevated-soft);
            border: 1px solid rgba(31, 41, 55, 0.6);
            border-top: 4px solid var(--color-accent);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3),
                0 2px 8px rgba(0, 0, 0, 0.2);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        /* Subtle gradient overlay on cards for depth (blue tint) */
        [data-theme="dark"] #producto .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg,
                    transparent 0%,
                    rgba(59, 63, 175, 0.3) 50%,
                    transparent 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        /* Enhanced card titles with better contrast */
        [data-theme="dark"] #producto .service-card h3 {
            color: var(--text-main);
            font-weight: 600;
            margin-bottom: var(--space-md);
            font-size: 1.25rem;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        /* Improved paragraph contrast and readability */
        [data-theme="dark"] #producto .service-card p {
            color: var(--text-body);
            line-height: 1.75;
            font-size: 1rem;
        }

        /* Hover effects: elevation and blue accent intensification */
        [data-theme="dark"] #producto .service-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(59, 63, 175, 0.2),
                0 4px 12px rgba(0, 0, 0, 0.3);
            border-top-color: var(--color-accent);
            border-top-width: 5px;
            background: #141B2E;
        }

        /* Show gradient overlay on hover */
        [data-theme="dark"] #producto .service-card:hover::before {
            opacity: 1;
        }

        /* Focus-visible for accessibility (blue accent) */
        [data-theme="dark"] #producto .service-card:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            transform: translateY(-2px);
        }

        /* Teaching Card Images */
        .teaching-card-image {
            width: 100%;
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: var(--space-md);
            overflow: hidden;
            border-radius: var(--radius-sm);
            background: transparent;
            padding: var(--space-sm);
        }

        .teaching-card-image img {
            max-width: 80%;
            max-height: 80%;
            object-fit: contain;
            transition: transform var(--transition-base);
        }

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

        /* Center text in teaching cards */
        #teaching .service-card h3 {
            text-align: center;
        }

        /* Hide teaching card descriptions */
        .teaching-card-description {
            display: none !important;
        }

        /* Teaching Card Clickable */
        .service-card[onclick] {
            cursor: pointer;
        }

        .service-card[onclick]:hover {
            cursor: pointer;
        }

        /* Typography adjustments */
        .service-card h3 {
            margin-top: 0;
            margin-bottom: var(--space-md);
            color: var(--color-primary);
            font-size: 1.3rem;
            font-weight: 600;
        }

        .service-card p {
            margin: 0;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            text-align: left;
        }

        /* Dark mode adjustments */
        .section-dark .service-card {
            background: var(--bg-elevated);
            color: var(--text-body);
            border-top: 6px solid;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
        }

        .section-dark .service-card:hover {
            background: var(--bg-elevated-soft);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
            border-color: var(--border-color);
        }

        .section-dark .service-card h3 {
            color: var(--text-main);
        }

        .section-dark .service-card p {
            color: var(--text-body);
        }

        /* En dark mode, las tarjetas de docencia y formación deben tener texto blanco para mejor legibilidad */
        [data-theme="dark"] #teaching .service-card h3 {
            color: var(--text-main) !important;
        }

        [data-theme="dark"] #teaching .service-card p {
            color: var(--text-main) !important;
        }

        /* ============================================
           TIMELINE
           ============================================ */
        .timeline-container {
            position: relative;
            padding: var(--space-3xl) 0;
            margin-top: var(--space-3xl);
        }

        /* Hide project cards list inside #producto */
        #producto .projects-list {
            display: none !important;
        }

        /* Show Experience Professional timeline inside #producto */
        #producto .experience-header,
        #producto .experience-timeline {
            display: block !important;
        }

        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 30px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--accent-primary), var(--accent-tertiary));
        }

        /* Dark mode timeline: solid blue line */
        [data-theme="dark"] .timeline::before {
            background: var(--color-accent);
        }

        .timeline-item {
            position: relative;
            padding-left: 80px;
            margin-bottom: var(--space-3xl);
            opacity: 0;
            transform: translateX(-30px);
            transition: opacity 0.6s ease, transform 0.6s ease, padding-left 0.3s ease;
        }

        .timeline-item.visible:hover {
            padding-left: 84px;
        }

        .timeline-item.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 22px;
            top: 8px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--accent-primary);
            border: 3px solid var(--bg-light);
            box-shadow: 0 0 0 3px var(--accent-primary);
            z-index: 2;
        }

        .timeline-item:nth-child(even)::before {
            background: var(--accent-secondary);
            box-shadow: 0 0 0 3px var(--accent-secondary);
        }

        /* Dark mode timeline: all bullets use blue */
        [data-theme="dark"] .timeline-item::before {
            background: var(--color-accent);
            box-shadow: 0 0 0 3px var(--color-accent);
        }

        [data-theme="dark"] .timeline-item:nth-child(even)::before {
            background: var(--color-accent);
            box-shadow: 0 0 0 3px var(--color-accent);
        }

        .timeline-year {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-primary);
            margin-bottom: var(--space-xs);
            letter-spacing: -0.02em;
        }

        .timeline-item:nth-child(even) .timeline-year {
            color: var(--accent-secondary);
        }

        /* Dark mode timeline years: all use blue */
        [data-theme="dark"] .timeline-year {
            color: var(--color-accent);
        }

        [data-theme="dark"] .timeline-item:nth-child(even) .timeline-year {
            color: var(--color-accent);
        }

        .timeline-role {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--space-xs);
        }

        .timeline-company {
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-primary);
            margin-bottom: var(--space-sm);
        }

        /* Dark mode timeline company: use blue for consistency */
        [data-theme="dark"] .timeline-company {
            color: var(--color-accent);
        }

        .timeline-description {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--space-sm);
        }

        .timeline-achievements {
            display: block;
            margin-top: var(--space-sm);
            padding-top: var(--space-sm);
            border-top: 1px solid var(--border-light);
        }

        .timeline-achievements ul {
            list-style: none;
            padding-left: 0;
        }

        .timeline-achievements li {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: var(--space-xs);
            padding-left: var(--space-md);
            position: relative;
        }

        .timeline-achievements li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-primary);
            font-weight: 700;
        }

        /* Dark mode timeline achievements: use blue accent */
        [data-theme="dark"] .timeline-achievements li::before {
            color: var(--color-accent);
        }

        /* Links dentro de timeline achievements */
        .timeline-achievements li a {
            color: var(--color-primary);
            text-decoration: none;
            font-weight: 600;
            transition: color 0.5s ease;
            border-bottom: 1px solid transparent;
        }

        .timeline-achievements li a:hover {
            color: var(--color-primary-hover);
            border-bottom-color: var(--color-primary);
        }

        [data-theme="dark"] .timeline-achievements li a {
            color: var(--color-accent);
        }

        [data-theme="dark"] .timeline-achievements li a:hover {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }

        @media (max-width: 768px) {
            .timeline::before {
                left: 20px;
            }

            .timeline-item {
                padding-left: 60px;
            }

            .timeline-item::before {
                left: 12px;
                width: 16px;
                height: 16px;
            }

            .timeline-year {
                font-size: 1.25rem;
            }

            .timeline-role {
                font-size: 1.1rem;
            }
        }

        /* ============================================
           PROJECT CARDS
           ============================================ */
        .projects-list {
            margin-top: var(--space-3xl);
        }

        .project-card {
            padding: var(--space-lg);
            background: var(--white);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--accent-primary);
            margin-bottom: var(--space-md);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        /* Dark mode: project card border-left uses blue */
        [data-theme="dark"] .project-card {
            border-left-color: var(--color-accent);
        }

        .project-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent-primary);
            transition: width var(--transition-base);
        }

        /* Dark mode: project card before uses blue accent */
        [data-theme="dark"] .project-card::before {
            background: var(--color-accent);
        }

        /* Dark mode: project card hover uses green accent */
        [data-theme="dark"] .project-card:hover {
            transform: translateX(4px) translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-left-color: var(--color-accent);
        }

        .project-card:hover::before {
            width: 100%;
            opacity: 0.05;
        }

        .project-title {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary);
            margin-bottom: var(--space-xs);
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            flex-wrap: wrap;
            gap: var(--space-sm);
        }

        .project-badge {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-soft);
            padding: var(--space-xs) var(--space-sm);
            border-radius: var(--radius-sm);
        }

        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-xs);
            margin-top: var(--space-sm);
            margin-bottom: var(--space-sm);
        }

        .project-tag {
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px var(--space-sm);
            border-radius: var(--radius-sm);
            background: var(--color-primary-soft);
            color: var(--accent-primary);
        }

        /* Dark mode: project tag uses green accent */
        [data-theme="dark"] .project-tag {
            color: var(--color-accent);
        }

        .project-tag.tag-product {
            background: var(--color-primary-soft);
            color: var(--badge-product);
        }

        .project-tag.tag-blockchain {
            background: var(--color-primary-soft);
            color: var(--badge-blockchain);
        }

        .project-tag.tag-api {
            background: var(--color-accent-soft);
            color: var(--badge-api);
        }

        .project-tag.tag-automation {
            background: rgba(245, 158, 11, 0.1);
            color: var(--badge-automation);
        }

        .project-metrics {
            display: flex;
            gap: var(--space-lg);
            margin-top: var(--space-sm);
            padding-top: var(--space-sm);
            border-top: 1px solid var(--border-light);
            font-size: 0.9rem;
        }

        .project-metric {
            display: flex;
            flex-direction: column;
        }

        .project-metric-value {
            font-weight: 700;
            color: var(--accent-primary);
            font-size: 1.1rem;
        }

        .project-metric-label {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }

        .project-role {
            color: var(--accent-primary);
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: var(--space-xs);
        }

        /* Dark mode: project role uses green accent */
        [data-theme="dark"] .project-role {
            color: var(--color-accent);
        }

        .project-description {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Dark mode project cards: use green accent border */
        [data-theme="dark"] .section-dark .project-card {
            background: var(--bg-elevated);
            border-left-color: var(--color-accent);
        }

        .section-dark .project-title {
            color: var(--text-main);
        }

        .section-dark .project-description {
            color: var(--text-body);
        }

        .section-dark .project-badge {
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        /* ============================================
           SKILLS & TECH STACK
           ============================================ */
        .skills-section {
            margin-top: var(--space-3xl);
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            grid-template-rows: repeat(2, auto);
            gap: var(--space-xl);
            margin-top: var(--space-xl);
        }

        /* Layout en esquinas opuestas: 2 a 2 */
        /* Esquina superior izquierda e inferior derecha: indigo */
        /* Esquina superior derecha e inferior izquierda: cyan */
        .skills-grid .skill-category:nth-child(1) {
            grid-column: 1;
            grid-row: 1;
        }

        .skills-grid .skill-category:nth-child(2) {
            grid-column: 2;
            grid-row: 1;
        }

        .skills-grid .skill-category:nth-child(3) {
            grid-column: 1;
            grid-row: 2;
        }

        .skills-grid .skill-category:nth-child(4) {
            grid-column: 2;
            grid-row: 2;
        }

        .skill-category {
            background: var(--white);
            padding: var(--space-xl);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .skill-category:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .skill-category h3 {
            font-size: 1.5rem;
            margin-bottom: var(--space-lg);
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .skill-category h3::before {
            content: '';
            width: 4px;
            height: 24px;
            border-radius: 2px;
            display: inline-block;
        }

        .skill-category.category-product h3::before {
            background: var(--skill-product);
        }

        .skill-category.category-blockchain h3::before {
            background: var(--skill-blockchain);
        }

        .skill-category.category-tech h3::before {
            background: var(--skill-tech);
        }

        .skill-category.category-soft h3::before {
            background: var(--skill-soft);
        }

        .skill-item {
            margin-bottom: var(--space-md);
        }

        .skill-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: var(--space-xs);
        }

        .skill-name {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
        }

        .skill-level {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        .skill-bar {
            height: 8px;
            background: var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            position: relative;
        }

        .skill-bar-fill {
            height: 100%;
            border-radius: var(--radius-sm);
            transition: width 1s ease;
            width: 0;
        }

        .skill-item[data-level="3"] .skill-bar-fill {
            width: 100%;
        }

        .skill-item[data-level="2"] .skill-bar-fill {
            width: 66.66%;
        }

        .skill-item[data-level="1"] .skill-bar-fill {
            width: 33.33%;
        }

        .skill-category.category-product .skill-bar-fill {
            background: var(--skill-product);
        }

        .skill-category.category-blockchain .skill-bar-fill {
            background: var(--skill-blockchain);
        }

        .skill-category.category-tech .skill-bar-fill {
            background: var(--skill-tech);
        }

        .skill-category.category-soft .skill-bar-fill {
            background: var(--skill-soft);
        }

        /* Dark mode skill bars - usar los mismos colores azules que en light mode */
        [data-theme="dark"] .skill-category.category-product .skill-bar-fill {
            background: var(--skill-product);
        }

        [data-theme="dark"] .skill-category.category-blockchain .skill-bar-fill {
            background: var(--skill-blockchain);
        }

        [data-theme="dark"] .skill-category.category-tech .skill-bar-fill {
            background: var(--skill-tech);
        }

        [data-theme="dark"] .skill-category.category-soft .skill-bar-fill {
            background: var(--skill-soft);
        }

        [data-theme="dark"] .skill-category .skill-bar {
            background: var(--color-primary-soft);
        }

        .section-dark .skill-category {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
        }

        /* Light mode: section-dark should have dark text on light background */
        .section-dark .skill-name {
            color: var(--text-primary);
        }

        .section-dark .skill-level {
            color: var(--text-secondary);
            font-weight: 600;
        }

        .section-dark .skill-category h3 {
            color: var(--text-primary);
        }

        /* Dark mode: override with light text */
        [data-theme="dark"] .section-dark .skill-name {
            color: var(--text-main);
        }

        [data-theme="dark"] .section-dark .skill-level {
            color: var(--text-body);
        }

        [data-theme="dark"] .section-dark .skill-category h3 {
            color: var(--text-main);
        }

        /* Paragraphs in skill cards */
        .skill-category p {
            color: var(--text-secondary);
        }

        [data-theme="dark"] .section-dark .skill-category p {
            color: var(--text-body);
        }

        .section-dark .skill-category:hover {
            background: var(--bg-elevated-soft);
            border-color: var(--border-color);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
        }

        @media (max-width: 768px) {
            .skills-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }

            /* En móvil, resetear posiciones de grid */
            .skills-grid .skill-category:nth-child(n) {
                grid-column: 1;
                grid-row: auto;
            }
        }

        /* ============================================
           MODAL
           ============================================ */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(4px);
            z-index: 2000;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .modal-overlay.active {
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 1;
        }

        .modal-container {
            background: var(--white);
            border-radius: var(--radius-lg);
            width: 90%;
            max-width: 900px;
            max-height: 90vh;
            overflow: hidden;
            transform: scale(0.9);
            transition: transform var(--transition-base);
            box-shadow: var(--shadow-lg);
        }

        .modal-overlay.active .modal-container {
            transform: scale(1);
        }

        [data-theme="dark"] .modal-container {
            background: var(--bg-elevated);
            color: var(--text-body);
        }

        [data-theme="dark"] .modal-container h2,
        [data-theme="dark"] .modal-container h3 {
            color: var(--text-main);
        }

        [data-theme="dark"] .modal-container p {
            color: var(--text-body);
        }

        .modal-header {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: var(--space-lg);
            border-bottom: 1px solid var(--border-light);
            position: relative;
        }

        .modal-header h3 {
            margin: 0;
            font-size: 1.5rem;
            color: var(--text-primary);
            text-align: center;
            flex: 1;
        }

        .modal-header .modal-close {
            position: absolute;
            right: var(--space-lg);
            top: 50%;
            transform: translateY(-50%);
        }

        .modal-close {
            background: transparent;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-secondary);
            padding: var(--space-xs);
            line-height: 1;
            transition: color var(--transition-base);
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-close:hover {
            color: var(--text-primary);
        }

        .modal-content {
            padding: var(--space-2xl) var(--space-lg) var(--space-lg);
            padding-top: var(--space-3xl);
            overflow-y: auto;
            max-height: calc(90vh - 100px);
        }

        /* ============================================
           TEACHING MODAL - Differentiated Styles
           ============================================ */
        /* CEDEU Modal - Blue theme */
        .modal-container[data-modal-type="cede"] {
            border-top: 4px solid #003366;
        }

        [data-theme="dark"] .modal-container[data-modal-type="cede"] {
            background: linear-gradient(180deg, #0A1825 0%, var(--bg-elevated) 100%);
            border-top: 4px solid #003366;
            box-shadow: 0 8px 32px rgba(0, 51, 102, 0.2), 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        [data-theme="dark"] .modal-container[data-modal-type="cede"] .modal-header {
            border-bottom-color: rgba(0, 51, 102, 0.3);
            background: rgba(0, 51, 102, 0.05);
        }

        [data-theme="dark"] .modal-container[data-modal-type="cede"] .modal-header h3 {
            color: #4A90E2;
        }

        /* Santander Modal - Red theme */
        .modal-container[data-modal-type="santander"] {
            border-top: 4px solid #EC0000;
        }

        [data-theme="dark"] .modal-container[data-modal-type="santander"] {
            background: linear-gradient(180deg, #2A0A0A 0%, var(--bg-elevated) 100%);
            border-top: 4px solid #EC0000;
            box-shadow: 0 8px 32px rgba(236, 0, 0, 0.2), 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        [data-theme="dark"] .modal-container[data-modal-type="santander"] .modal-header {
            border-bottom-color: rgba(236, 0, 0, 0.3);
            background: rgba(236, 0, 0, 0.05);
        }

        [data-theme="dark"] .modal-container[data-modal-type="santander"] .modal-header h3 {
            color: #FF4444;
        }

        /* Medusa Modal - Purple theme */
        .modal-container[data-modal-type="medusa"] {
            border-top: 4px solid #8B5CF6;
        }

        [data-theme="dark"] .modal-container[data-modal-type="medusa"] {
            background: linear-gradient(180deg, #1A0F2E 0%, var(--bg-elevated) 100%);
            border-top: 4px solid #8B5CF6;
            box-shadow: 0 8px 32px rgba(139, 92, 246, 0.2), 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        [data-theme="dark"] .modal-container[data-modal-type="medusa"] .modal-header {
            border-bottom-color: rgba(139, 92, 246, 0.3);
            background: rgba(139, 92, 246, 0.05);
        }

        [data-theme="dark"] .modal-container[data-modal-type="medusa"] .modal-header h3 {
            color: #A78BFA;
        }

        /* Light mode styles for modals */
        .modal-container[data-modal-type="cede"] .modal-header h3 {
            color: #003366;
        }

        .modal-container[data-modal-type="santander"] .modal-header h3 {
            color: #EC0000;
        }

        .modal-container[data-modal-type="medusa"] .modal-header h3 {
            color: #8B5CF6;
        }

        .modal-content iframe {
            width: 100%;
            min-height: 600px;
            border: none;
            border-radius: var(--radius-sm);
        }

        /* ============================================
           MODAL DE ÉXITO (FORMULARIO DE CONTACTO)
           ============================================ */
        .success-modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(4px);
            z-index: 2000;
            opacity: 0;
            transition: opacity var(--transition-base);
            align-items: center;
            justify-content: center;
        }

        .success-modal-overlay.active {
            display: flex;
            opacity: 1;
        }

        .success-modal-container {
            background: var(--white);
            border-radius: var(--radius-lg);
            width: 90%;
            max-width: 450px;
            padding: 0;
            transform: scale(0.9);
            transition: transform var(--transition-base);
            box-shadow: var(--shadow-lg);
        }

        .success-modal-overlay.active .success-modal-container {
            transform: scale(1);
        }

        [data-theme="dark"] .success-modal-container {
            background: var(--bg-elevated);
            color: var(--text-body);
        }

        .success-modal-content {
            padding: var(--space-2xl);
            text-align: center;
        }

        .success-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto var(--space-lg);
            background: var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: var(--white);
            font-weight: bold;
            animation: successPulse 0.6s ease-out;
        }

        @keyframes successPulse {
            0% {
                transform: scale(0);
                opacity: 0;
            }

            50% {
                transform: scale(1.1);
            }

            100% {
                transform: scale(1);
                opacity: 1;
            }
        }

        .success-modal-content h3 {
            margin: 0 0 var(--space-md);
            font-size: 1.75rem;
            color: var(--text-primary);
            font-weight: 600;
        }

        [data-theme="dark"] .success-modal-content h3 {
            color: var(--text-main);
        }

        .success-modal-content p {
            margin: 0;
            font-size: 1.1rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        [data-theme="dark"] .success-modal-content p {
            color: var(--text-body);
        }

        @media (max-width: 768px) {
            .modal-container {
                width: 95%;
                max-height: 95vh;
            }

            .modal-content iframe {
                min-height: 500px;
            }
        }

        /* ============================================
           ARTICLES & PAPERS
           ============================================ */
        .articles-section {
            margin-top: var(--space-3xl);
        }

        #articles {
            padding-top: var(--space-3xl);
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            grid-auto-rows: 1fr;
            gap: var(--space-lg);
            margin-top: var(--space-xl);
            max-width: 1400px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: var(--space-xl);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            width: 100%;
            height: 100%;
        }

        .article-card>* {
            position: relative;
            z-index: 1;
        }

        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent-primary);
            transition: width var(--transition-base);
            pointer-events: none;
            z-index: 0;
        }

        /* Dark mode: article card before uses green accent */
        [data-theme="dark"] .article-card::before {
            background: var(--color-accent);
        }

        /* Dark mode: article card hover uses green accent */
        [data-theme="dark"] .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent);
        }

        .article-card:hover::before {
            width: 100%;
            opacity: 0.05;
        }

        .article-type {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 4px var(--space-sm);
            border-radius: var(--radius-sm);
            margin-bottom: var(--space-sm);
            background: var(--color-primary-soft);
            color: var(--accent-primary);
        }

        /* Dark mode: article type uses green accent */
        [data-theme="dark"] .article-type {
            color: var(--color-accent);
        }

        .article-type.type-paper {
            background: var(--color-primary-soft);
            color: var(--badge-blockchain);
        }

        .article-type.type-article {
            background: rgba(6, 182, 212, 0.1);
            color: var(--badge-api);
        }

        .article-type.type-blog {
            background: rgba(245, 158, 11, 0.1);
            color: var(--badge-automation);
        }

        .article-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--space-sm);
            line-height: 1.4;
        }

        /* Dark mode: article titles en blanco */
        [data-theme="dark"] .article-title {
            color: var(--text-main);
        }

        .article-card:hover .article-title {
            color: var(--accent-primary);
        }

        /* Dark mode: article title hover uses green accent */
        [data-theme="dark"] .article-card:hover .article-title {
            color: var(--color-accent);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            margin-bottom: var(--space-sm);
            font-size: 0.85rem;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

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

        .article-platform {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            font-weight: 600;
        }

        .article-excerpt {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: var(--space-md);
            flex-grow: 1;
        }

        .article-link {
            display: inline-flex;
            align-items: center;
            gap: var(--space-xs);
            color: var(--accent-primary);
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: none;
            transition: all var(--transition-base);
            margin-top: auto;
            position: relative;
            z-index: 1;
            cursor: pointer;
        }

        .article-link:hover {
            gap: var(--space-sm);
            color: var(--accent-secondary);
        }

        /* Dark mode: article link uses green accent */
        [data-theme="dark"] .article-link {
            color: var(--color-accent);
        }

        [data-theme="dark"] .article-link:hover {
            color: var(--color-accent);
        }

        .article-link::after {
            content: '→';
            transition: transform var(--transition-base);
        }

        .article-link:hover::after {
            transform: translateX(4px);
        }

        /* Dark mode article cards: green accent on hover */
        [data-theme="dark"] .section-dark .article-card {
            background: var(--bg-elevated);
            border-color: var(--border-color);
        }

        [data-theme="dark"] .section-dark .article-card::before {
            background: var(--color-accent);
        }

        [data-theme="dark"] .section-dark .article-card:hover {
            border-color: var(--color-accent);
        }

        [data-theme="dark"] .section-dark .article-card:hover .article-title {
            color: var(--color-accent);
        }

        [data-theme="dark"] .section-dark .article-link:hover {
            color: var(--color-accent);
        }

        .section-dark .article-title {
            color: var(--text-main);
        }

        .section-dark .article-excerpt {
            color: var(--text-body);
        }

        @media (max-width: 1200px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .articles-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============================================
           CONTACT FORM
           ============================================ */
        .contact-wrapper {
            max-width: 650px;
            margin: var(--space-3xl) auto 0;
        }

        .form-group {
            margin-bottom: var(--space-lg);
        }

        .form-group label {
            display: block;
            margin-bottom: var(--space-sm);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: var(--space-md);
            border: 2px solid var(--border-light);
            background: var(--white);
            color: var(--text-primary);
            font-family: 'Exo 2', sans-serif;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            min-height: 44px;
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-secondary);
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent-primary);
            box-shadow: 0 0 0 3px rgba(59, 63, 175, 0.1);
        }

        [data-theme="dark"] .form-group input:focus,
        [data-theme="dark"] .form-group textarea:focus,
        [data-theme="dark"] .form-group select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px var(--color-primary-soft);
        }

        .section-dark .form-group input,
        .section-dark .form-group textarea,
        .section-dark .form-group select {
            background: var(--bg-elevated);
            border-color: var(--border-color);
            color: var(--text-body);
        }

        .section-dark .form-group input::placeholder,
        .section-dark .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        [data-theme="dark"] .form-group input,
        [data-theme="dark"] .form-group textarea,
        [data-theme="dark"] .form-group select {
            background: var(--bg-elevated);
            border-color: var(--border-color);
            color: var(--text-body);
        }

        [data-theme="dark"] .form-group input::placeholder,
        [data-theme="dark"] .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        [data-theme="dark"] .form-group label {
            color: var(--text-main);
        }

        .contact-social {
            text-align: center;
            margin-top: var(--space-3xl);
            padding-top: var(--space-lg);
            border-top: 1px solid var(--border-light);
        }

        .contact-social p {
            margin-bottom: var(--space-md);
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: var(--space-lg);
            flex-wrap: wrap;
            align-items: center;
        }

        .social-links a {
            color: var(--text-secondary);
            font-weight: 500;
            transition: color var(--transition-base);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }

        /* Dark mode: social links use green accent on hover */
        [data-theme="dark"] .social-links a:hover {
            color: var(--color-accent);
        }

        .social-icon {
            width: 16px;
            height: 16px;
            object-fit: contain;
            display: block;
        }

        .email-link {
            color: var(--text-primary);
            font-weight: 600;
            text-decoration: none;
            font-size: 1.1rem;
        }

        .email-link:hover {
            color: var(--color-primary);
            text-decoration: underline;
        }

        /* ============================================
           FOOTER
           ============================================ */
        footer {
            /* Antes usaba --white sobre un fondo claro: contraste ~1.1:1, ilegible.
               Ahora usa tokens de tema para contraste correcto en claro y oscuro. */
            background: var(--bg-elevated);
            color: var(--text-body);
            padding: var(--space-3xl) 0 var(--space-xl);
            border-top: 1px solid var(--border-color);
        }

        .footer-minimal {
            text-align: center;
            padding: var(--space-xl) 0;
            border-top: 1px solid var(--border-color);
        }

        .footer-minimal p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: var(--space-md);
        }

        .footer-minimal p:last-child {
            margin-bottom: 0;
        }

        .footer-link {
            color: var(--color-primary);
            text-decoration: none;
            font-weight: 500;
            transition: color var(--transition-base);
        }

        .footer-link:hover,
        .footer-link:focus-visible {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        /* En oscuro --color-primary no se aclara (contraste 2.2:1),
           así que el enlace del footer usa un indigo claro legible. */
        [data-theme="dark"] .footer-link {
            color: #A5B4FC;
        }

        [data-theme="dark"] .footer-link:hover,
        [data-theme="dark"] .footer-link:focus-visible {
            color: var(--text-main);
        }

        /* ============================================
           RESPONSIVE DESIGN
           ============================================ */
        @media (max-width: 768px) {
            .container {
                padding: 0 var(--space-md);
            }

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

            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: var(--space-md);
                border-top: 1px solid var(--border-light);
                gap: var(--space-md);
                /* Separación visual del contenido que queda debajo */
                box-shadow: 0 12px 24px -8px rgba(15, 23, 42, 0.25);
                z-index: 1001;
                max-height: calc(100vh - 100%);
                overflow-y: auto;
            }

            [data-theme="dark"] .nav-menu {
                box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.6);
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-menu a {
                display: block;
                padding: var(--space-sm) 0;
            }

            .mobile-menu-toggle {
                display: inline-flex;
            }

            .hero {
                padding-top: 100px;
                min-height: auto;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }

            .hero-image {
                max-width: 300px;
                height: auto;
                aspect-ratio: 1 / 1;
                margin: 0 auto;
            }

            .cta-group {
                flex-direction: column;
            }

            .btn {
                width: 100%;
            }

            .hero-stats {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }

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

            .service-card {
                padding: var(--space-lg);
            }

            .service-card h3 {
                font-size: 1.1rem;
            }

            .service-card p {
                font-size: 0.9rem;
            }


            .section {
                padding: var(--space-2xl) 0;
            }

            .timeline::before {
                left: 15px;
            }

            .timeline-item {
                padding-left: 50px;
            }

            .timeline-item::before {
                left: 7px;
                width: 16px;
                height: 16px;
            }

            .project-metrics {
                flex-direction: column;
                gap: var(--space-sm);
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.75rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .nav-logo {
                font-size: 1.5rem;
            }

            .hero-image {
                max-width: 280px;
                height: auto;
                aspect-ratio: 1 / 1;
            }

            .service-card {
                padding: var(--space-md);
            }

            .service-card h3 {
                font-size: 1rem;
            }

            .service-card p {
                font-size: 0.85rem;
            }
        }

        /* ============================================
           ACCESSIBILITY
           ============================================ */
        @media (prefers-reduced-motion: reduce) {

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        *:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        /* Dark mode: use green accent for focus rings */
        [data-theme="dark"] *:focus-visible {
            outline-color: var(--color-accent);
        }

        .skip-link {
            position: absolute;
            left: var(--space-md);
            top: var(--space-md);
            background: var(--grad-brand);
            color: var(--white);
            text-decoration: none;
            font-weight: 600;
            border-radius: 99px;
            box-shadow: 0 6px 16px -6px rgba(59, 63, 175, 0.45);
            z-index: 1001;
            /* Oculto visualmente hasta recibir foco por teclado */
            width: 1px;
            height: 1px;
            padding: 0;
            border: 0;
            overflow: hidden;
            clip: rect(0 0 0 0);
            clip-path: inset(50%);
            white-space: nowrap;
        }

        .skip-link:focus {
            width: auto;
            height: auto;
            padding: var(--space-sm) var(--space-md);
            overflow: visible;
            clip: auto;
            clip-path: none;
            white-space: normal;
        }

        /* ============================================
           CRYPTO PRICES SECTION
           ============================================ */

        .section-compact {
            padding: var(--space-xl) 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .crypto-container {
            max-width: 1120px;
            margin: 0 auto;
        }

        .crypto-ticker-wrapper {
            width: 100%;
            overflow-x: hidden;
            overflow-y: visible;
            position: relative;
            margin: var(--space-lg) 0;
            padding: var(--space-sm) 0;
        }

        .crypto-ticker-wrapper::before,
        .crypto-ticker-wrapper::after {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            width: 100px;
            z-index: 2;
            pointer-events: none;
        }

        .crypto-ticker-wrapper::before {
            left: 0;
            background: linear-gradient(to right, var(--bg-secondary), transparent);
        }

        .crypto-ticker-wrapper::after {
            right: 0;
            background: linear-gradient(to left, var(--bg-secondary), transparent);
        }

        [data-theme="dark"] .crypto-ticker-wrapper::before {
            background: linear-gradient(to right, var(--bg-secondary), transparent);
        }

        [data-theme="dark"] .crypto-ticker-wrapper::after {
            background: linear-gradient(to left, var(--bg-secondary), transparent);
        }

        /* Ajuste para cuando está dentro de market-intelligence */
        .market-intelligence .crypto-ticker-wrapper::before {
            background: linear-gradient(to right, var(--bg-secondary), transparent);
        }

        .market-intelligence .crypto-ticker-wrapper::after {
            background: linear-gradient(to left, var(--bg-secondary), transparent);
        }

        [data-theme="dark"] .market-intelligence .crypto-ticker-wrapper::before {
            background: linear-gradient(to right, #0A1120, transparent);
        }

        [data-theme="dark"] .market-intelligence .crypto-ticker-wrapper::after {
            background: linear-gradient(to left, #0D1525, transparent);
        }

        .crypto-prices-grid {
            display: flex;
            gap: var(--space-md);
            overflow-x: auto;
            padding: var(--space-lg) 0;
            scroll-snap-type: x mandatory;
        }

        /* Solo hace falta en móvil: en desktop el ticker autoscrollea solo */
        .crypto-scroll-track {
            display: none;
        }

        /* Autoscroll desktop */
        @media (min-width: 769px) {
            .crypto-prices-grid {
                animation: crypto-scroll 12s linear infinite;
                /* Sin esto, translateX(-50%) se calcula sobre el ancho VISIBLE del
                   contenedor (el de .crypto-ticker-wrapper, que hace overflow-x:hidden),
                   no sobre el ancho real de las tarjetas duplicadas. El resultado era
                   que la animación solo recorría media pantalla y luego saltaba de
                   golpe al principio, en vez de completar una vuelta entera y enlazar
                   sin corte con la copia duplicada. max-content hace que la caja del
                   grid mida lo que realmente ocupa su contenido (el doble de tarjetas),
                   así que -50% coincide exactamente con el punto de costura entre la
                   primera y la segunda copia.
                */
                width: max-content;
            }

            .crypto-prices-grid.paused {
                animation-play-state: paused;
            }
        }

        @keyframes crypto-scroll {
            from {
                transform: translateX(0);
            }

            to {
                transform: translateX(-50%);
            }
        }

        /* Mobile: solo scroll manual, sin animación */
        @media (max-width: 768px) {
            .crypto-prices-grid {
                animation: none;
            }
        }

        .crypto-card {
            min-width: 180px;
            max-width: 200px;
            scroll-snap-align: start;
            background: linear-gradient(135deg,
                    rgba(var(--card-accent-r, 0), var(--card-accent-g, 0), var(--card-accent-b, 0), 0.03),
                    var(--bg-secondary));
            border-radius: var(--radius-lg);
            padding: var(--space-xs) var(--space-sm);
            border: 1px solid var(--border-light);
            border-top-width: 3px;
            border-top: 3px solid;
            box-shadow: none;
            cursor: pointer;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            flex-shrink: 0;
            position: relative;
        }

        .crypto-card:hover,
        .crypto-card:focus-visible {
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
            border-color: rgba(var(--card-accent-r, 0), var(--card-accent-g, 0), var(--card-accent-b, 0), 0.4);
            outline: none;
        }

        .crypto-icon {
            width: 28px;
            height: 28px;
            border-radius: 999px;
            margin-bottom: var(--space-sm);
            object-fit: contain;
            flex-shrink: 0;
        }

        .crypto-symbol {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

        .crypto-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .crypto-price {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-primary);
            line-height: 1;
        }

        .crypto-market-info {
            font-size: 0.7rem;
            color: var(--text-secondary);
        }

        .crypto-card-content {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: var(--space-sm);
        }

        .crypto-card-main {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .crypto-card-divider {
            height: 1px;
            background: var(--border-light);
            margin: 4px 0;
            opacity: 0.5;
        }

        .crypto-change {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            position: relative;
            cursor: help;
        }

        .crypto-change[title]:hover::after {
            content: attr(title);
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: var(--text-primary);
            color: var(--bg-light);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            font-size: 0.7rem;
            white-space: nowrap;
            margin-bottom: 4px;
            z-index: 10;
            pointer-events: none;
        }

        .crypto-change[title]:hover::before {
            content: '';
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            border: 4px solid transparent;
            border-top-color: var(--text-primary);
            margin-bottom: -4px;
            z-index: 10;
        }

        .crypto-change.positive {
            color: #10b981;
            /* Verde para cambios positivos en modo claro */
        }

        .crypto-change.negative {
            color: #ef4444;
            /* Rojo para cambios negativos en modo claro */
        }

        .crypto-change.neutral {
            color: var(--text-secondary);
        }

        /* Dark mode: colores más suaves pero visibles */
        [data-theme="dark"] .crypto-change.positive {
            color: #34d399;
            /* Verde más claro para dark mode */
        }

        [data-theme="dark"] .crypto-change.negative {
            color: #f87171;
            /* Rojo más claro para dark mode */
        }

        .crypto-change-indicator {
            font-size: 1.2rem;
            line-height: 1;
        }

        .crypto-loading {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: var(--space-2xl);
            gap: var(--space-md);
            color: var(--text-secondary);
            width: 100%;
            min-width: 100%;
        }

        .spinner {
            width: 32px;
            height: 32px;
            border: 3px solid var(--border-light);
            border-top-color: var(--accent-primary);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        .crypto-error {
            padding: var(--space-lg);
            background: var(--color-primary-soft);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-md);
            color: var(--color-primary);
            font-size: 0.9rem;
            width: 100%;
            min-width: 100%;
        }

        .crypto-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: var(--space-sm);
            padding-top: var(--space-xs);
            border-top: 1px dashed var(--border-light);
            gap: var(--space-md);
            font-size: 0.8rem;
        }

        .crypto-timestamp {
            color: var(--text-secondary);
            margin: 0;
        }

        .refresh-icon {
            margin-right: 6px;
            font-size: 0.9rem;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.9rem;
        }

        .btn.btn-secondary {
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: 1px solid var(--border-light);
        }

        .btn.btn-secondary:hover {
            background: var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .crypto-refresh-btn {
            display: inline-flex;
            align-items: center;
            gap: var(--space-xs);
            transition: all var(--transition-base);
        }

        @media (max-width: 768px) {
            .crypto-ticker-wrapper {
                overflow-x: auto;
                overflow-y: hidden;
                -webkit-overflow-scrolling: touch;
                scroll-snap-type: x mandatory;
                scrollbar-width: none;
                -ms-overflow-style: none;
            }

            .crypto-ticker-wrapper::-webkit-scrollbar {
                display: none;
            }

            .crypto-prices-grid {
                animation: none;
                scroll-snap-align: start;
            }

            .crypto-card {
                min-width: 160px;
                padding: var(--space-sm);
                scroll-snap-align: start;
            }

            .crypto-name {
                font-size: 0.9rem;
            }

            /* Indicador de scroll: en móvil se oculta el scrollbar nativo del
               ticker, así que sin esto no hay ninguna pista de que se puede
               deslizar para ver más criptos. */
            .crypto-scroll-track {
                display: block;
                width: 100%;
                height: 4px;
                margin-top: var(--space-sm);
                border-radius: 999px;
                background: var(--border-color);
                overflow: hidden;
            }

            .crypto-scroll-thumb {
                height: 100%;
                width: 30%;
                border-radius: 999px;
                background: var(--color-primary);
                transform: translateX(0);
                transition: transform 0.1s linear;
            }

            .crypto-price {
                font-size: 1.1rem;
            }

            .crypto-footer {
                flex-direction: column;
                align-items: flex-start;
            }

            .crypto-ticker-wrapper::before,
            .crypto-ticker-wrapper::after {
                display: none;
            }
        }

        /* ============================================
           MARKET INTELLIGENCE SECTION
           ============================================ */
        .market-intelligence {
            background: var(--bg-secondary);
            padding: var(--space-2xl) 0;
            position: relative;
        }

        [data-theme="dark"] .market-intelligence {
            background: linear-gradient(90deg,
                    #0A1120 0%,
                    #0B1220 50%,
                    #0D1525 100%);
        }

        /* TABS NAVIGATION - More compact */
        .market-tabs {
            display: flex;
            gap: var(--space-sm);
            margin: var(--space-md) 0;
            justify-content: center;
            flex-wrap: wrap;
            border-bottom: 1px solid var(--border-light);
            padding-bottom: var(--space-md);
        }

        [data-theme="dark"] .market-tabs {
            border-bottom-color: rgba(31, 41, 55, 0.4);
        }

        .market-tab-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: var(--space-xs) var(--space-sm);
            background: transparent;
            border: 2px solid var(--border-light);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 600;
            font-family: 'Exo 2', sans-serif;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.5s ease;
            min-height: 36px;
            letter-spacing: 0.2px;
        }

        .market-tab-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .market-tab-btn.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: white;
            box-shadow: var(--shadow-sm);
        }

        [data-theme="dark"] .market-tab-btn {
            border-color: rgba(59, 63, 175, 0.3);
            color: var(--text-body);
        }

        [data-theme="dark"] .market-tab-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        [data-theme="dark"] .market-tab-btn.active {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #020617;
        }

        /* TAB CONTENT */
        .market-tab-content {
            display: none;
            animation: fadeIn 0.4s ease-in-out;
        }

        .market-tab-content.active {
            display: block;
        }

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

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* PROTOCOLS GRID - Smaller, more compact cards */
        .protocols-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-md);
            margin-top: var(--space-xl);
        }

        /* PROTOCOL CARD - Smaller, more detailed */
        .protocol-card {
            background: var(--white);
            padding: var(--space-md);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            border-top: 3px solid var(--color-primary);
            box-shadow: var(--shadow-sm);
            transition: all 0.5s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .protocol-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg,
                    transparent 0%,
                    rgba(59, 63, 175, 0.2) 50%,
                    transparent 100%);
        }

        .protocol-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-top-color: var(--color-accent);
        }

        .protocol-card.loading {
            justify-content: center;
            align-items: center;
            grid-column: 1 / -1;
            min-height: 200px;
        }

        .protocol-card.loading .spinner {
            width: 40px;
            height: 40px;
            border: 3px solid var(--border-light);
            border-top-color: var(--color-primary);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        [data-theme="dark"] .protocol-card.loading .spinner {
            border-color: rgba(59, 63, 175, 0.2);
            border-top-color: var(--color-accent);
        }

        .protocol-card.loading p {
            margin-top: var(--space-md);
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        [data-theme="dark"] .protocol-card {
            background: var(--bg-elevated);
            border-color: rgba(31, 41, 55, 0.6);
            border-top-color: var(--color-accent);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        [data-theme="dark"] .protocol-card::before {
            background: linear-gradient(90deg,
                    transparent 0%,
                    rgba(59, 63, 175, 0.2) 50%,
                    transparent 100%);
        }

        [data-theme="dark"] .protocol-card:hover {
            background: var(--bg-elevated-soft);
            box-shadow: 0 8px 24px rgba(59, 63, 175, 0.2);
            border-top-color: var(--color-accent);
        }

        /* PROTOCOL HEADER - Smaller */
        .protocol-header {
            display: flex;
            align-items: flex-start;
            gap: var(--space-sm);
            margin-bottom: var(--space-sm);
        }

        .protocol-logo {
            width: 36px;
            height: 36px;
            min-width: 36px;
            border-radius: 50%;
            background: var(--bg-elevated-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            border: 1px solid var(--border-light);
            flex-shrink: 0;
        }

        [data-theme="dark"] .protocol-logo {
            background: rgba(59, 63, 175, 0.1);
            border-color: rgba(59, 63, 175, 0.3);
        }

        .protocol-info {
            flex: 1;
        }

        .protocol-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 2px 0;
            font-family: 'Exo 2', sans-serif;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        [data-theme="dark"] .protocol-name {
            color: var(--text-main);
        }

        .protocol-category {
            font-size: 0.65rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 600;
            margin: 0;
        }

        /* METRICS - More compact */
        .protocol-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-sm);
            margin: var(--space-sm) 0;
            padding: var(--space-sm) 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        [data-theme="dark"] .protocol-metrics {
            border-color: rgba(31, 41, 55, 0.3);
        }

        .metric {
            text-align: left;
        }

        .metric-label {
            font-size: 0.65rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            font-weight: 600;
            margin: 0 0 4px 0;
        }

        .metric-value {
            font-size: 1rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            font-family: 'Exo 2', sans-serif;
            margin: 0;
            line-height: 1.2;
        }

        [data-theme="dark"] .metric-value {
            color: var(--color-accent);
        }

        .metric-change {
            font-size: 0.7rem;
            font-weight: 600;
            margin-top: 2px;
            display: flex;
            align-items: center;
            gap: 3px;
        }

        .metric-change.positive {
            color: var(--color-success);
        }

        .metric-change.negative {
            color: var(--color-primary);
        }

        [data-theme="dark"] .metric-change.negative {
            color: var(--color-accent);
        }

        .metric-change.neutral {
            color: var(--text-muted);
        }

        /* PROTOCOL LINK - Smaller */
        .protocol-link {
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: var(--space-sm);
            transition: all 0.5s ease;
        }

        .protocol-link:hover {
            gap: var(--space-sm);
            color: var(--color-primary-hover);
        }

        [data-theme="dark"] .protocol-link {
            color: var(--color-accent);
        }

        [data-theme="dark"] .protocol-link:hover {
            color: var(--color-accent);
        }

        /* MARKET FOOTER - More compact */
        .market-footer {
            text-align: center;
            margin-top: var(--space-xl);
            padding-top: var(--space-md);
            border-top: 1px solid var(--border-light);
        }

        [data-theme="dark"] .market-footer {
            border-top-color: rgba(31, 41, 55, 0.3);
        }

        .market-timestamp {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        .market-timestamp a {
            color: var(--color-primary);
            text-decoration: none;
            font-weight: 600;
            transition: color 0.5s ease;
        }

        .market-timestamp a:hover {
            text-decoration: underline;
        }

        [data-theme="dark"] .market-timestamp a {
            color: var(--color-accent);
        }

        /* RESPONSIVE MARKET INTELLIGENCE */
        @media (max-width: 768px) {
            .market-tabs {
                gap: var(--space-sm);
                padding-bottom: var(--space-md);
            }

            .market-tab-btn {
                padding: var(--space-sm) var(--space-sm);
                font-size: 0.85rem;
            }

            .market-tab-btn .tab-label {
                margin: 0;
            }

            .protocols-grid {
                grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
                gap: var(--space-sm);
            }

            .protocol-card {
                padding: var(--space-sm);
            }

            .protocol-header {
                gap: var(--space-xs);
            }

            .protocol-logo {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }

            .protocol-name {
                font-size: 0.85rem;
            }

            .protocol-metrics {
                /* 2 columnas también en móvil: apiladas a 1 hacía las tarjetas
                   demasiado altas (una por pantalla) */
                grid-template-columns: 1fr 1fr;
                gap: var(--space-xs);
                margin: var(--space-xs) 0;
                padding: var(--space-xs) 0;
            }

            .metric-value {
                font-size: 0.9rem;
            }

            .metric-label {
                font-size: 0.6rem;
            }

            .metric-change {
                font-size: 0.65rem;
            }

            .protocol-link {
                font-size: 0.75rem;
            }
        }

        @media (max-width: 480px) {
            .market-intelligence {
                padding: var(--space-2xl) 0;
            }

            .market-intelligence .section-header {
                margin-bottom: var(--space-2xl) !important;
            }

            .market-tabs {
                margin: var(--space-2xl) 0;
                flex-direction: column;
            }

            .market-tab-btn {
                width: 100%;
                justify-content: center;
            }

            .protocol-card {
                padding: var(--space-md);
            }

            .protocol-header {
                flex-direction: column;
                align-items: flex-start;
            }

            .market-footer {
                margin-top: var(--space-2xl);
            }
        }

        /* ============================================
           VISUAL POLISH 2026 — tech/modern, electric blue
           ============================================ */
        :root {
            --radius-xl: 20px;
            /* Gradiente coherente dentro de la familia índigo/azul (sin salto a cian neón) */
            --grad-brand: linear-gradient(135deg, #3B3FAF 0%, #4F6BF5 100%);
            --glow-brand: 0 10px 30px -10px rgba(59, 63, 175, 0.32);
            --shadow-card: 0 2px 10px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 18px 40px -18px rgba(59, 63, 175, 0.28);
        }

        [data-theme="dark"] {
            --grad-brand: linear-gradient(135deg, #6366F1 0%, #818CF8 100%);
            --glow-brand: 0 10px 30px -10px rgba(99, 102, 241, 0.30);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.45);
            --shadow-card-hover: 0 20px 44px -18px rgba(0, 0, 0, 0.6);
        }

        /* Reducir el hueco al final del timeline de experiencia */
        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .experience-header {
            margin-top: var(--space-xl) !important;
            margin-bottom: 0 !important;
        }

        .experience-timeline {
            margin-top: var(--space-md);
            padding-top: var(--space-sm);
            padding-bottom: 0;
        }

        /* Selección de texto con color de marca */
        ::selection {
            background: rgba(59, 63, 175, 0.18);
            color: var(--text-main);
        }

        /* Scrollbar sutil */
        @media (min-width: 769px) {
            html {
                scrollbar-width: thin;
                scrollbar-color: var(--color-primary) transparent;
            }

            body::-webkit-scrollbar {
                width: 10px;
            }

            body::-webkit-scrollbar-thumb {
                background: linear-gradient(var(--color-primary), var(--color-accent));
                border-radius: 99px;
                border: 2px solid var(--bg-secondary);
            }
        }

        /* Hero: título más impactante con acento en degradado */
        .hero-content h1 {
            font-size: clamp(2.6rem, 5.5vw, 4.2rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.05;
        }

        .hero-content h1::before {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            border-radius: 99px;
            margin-bottom: var(--space-md);
            background: var(--grad-brand);
        }

        /* Hero: foto con glow de marca y esquinas más suaves */
        .hero-image {
            border-radius: var(--radius-xl);
            box-shadow: var(--glow-brand), var(--shadow-lg);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .hero-image:hover {
            transform: translateY(-6px) scale(1.01);
            box-shadow: 0 24px 60px -16px rgba(59, 63, 175, 0.5), var(--shadow-lg);
        }

        /* Section header: barra de acento bajo el título */
        .section-header h2 {
            position: relative;
            padding-bottom: var(--space-sm);
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            border-radius: 99px;
            background: var(--grad-brand);
        }

        /* Botón primario con degradado y glow al pasar */
        .btn-primary {
            background: var(--grad-brand);
            box-shadow: 0 4px 14px -4px rgba(59, 63, 175, 0.45);
        }

        .btn-primary:hover {
            background: var(--grad-brand);
            transform: translateY(-3px);
            box-shadow: var(--glow-brand);
            filter: saturate(1.1);
        }

        [data-theme="dark"] .btn-primary {
            background: var(--grad-brand);
        }

        .btn-secondary {
            backdrop-filter: blur(4px);
        }

        /* Cards: elevación premium también en modo claro */
        .project-card,
        .article-card,
        .skill-category {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .project-card:hover {
            transform: translateX(4px) translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }

        .skill-category:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        /* Tags y badges tipo "pill" con más aire */
        .project-tag,
        .project-badge {
            border-radius: 99px;
        }

        /* Reveal escalonado en rejillas */
        .projects-list>.fade-in:nth-child(2) {
            transition-delay: 0.08s;
        }

        .projects-list>.fade-in:nth-child(3) {
            transition-delay: 0.16s;
        }

        .projects-list>.fade-in:nth-child(4) {
            transition-delay: 0.24s;
        }

        .articles-grid>.fade-in:nth-child(2),
        .skills-grid>.fade-in:nth-child(2) {
            transition-delay: 0.08s;
        }

        .articles-grid>.fade-in:nth-child(3),
        .skills-grid>.fade-in:nth-child(3) {
            transition-delay: 0.16s;
        }

        .articles-grid>.fade-in:nth-child(4),
        .skills-grid>.fade-in:nth-child(4) {
            transition-delay: 0.24s;
        }

        /* Respeta a quien prefiere menos movimiento */
        @media (prefers-reduced-motion: reduce) {

            .hero,
            .hero::before,
            .hero::after {
                animation: none !important;
            }

            .fade-in {
                transition-delay: 0s !important;
            }
        }

        /* Aplicar el gradiente de marca a CTA del nav, idioma activo y stats */
        .nav-cta,
        [data-theme="light"] .nav-cta,
        body:not([data-theme]) .nav-cta,
        [data-theme="dark"] .nav-cta {
            background: var(--grad-brand) !important;
            border-color: transparent !important;
            box-shadow: 0 4px 14px -4px rgba(59, 63, 175, 0.45);
        }

        .nav-cta:hover,
        [data-theme="dark"] .nav-cta:hover {
            background: var(--grad-brand) !important;
            border-color: transparent !important;
            transform: translateY(-2px);
            filter: saturate(1.08);
            box-shadow: var(--glow-brand);
        }

        .lang-btn.active,
        [data-theme="dark"] .lang-btn.active {
            background: var(--grad-brand);
            border-color: transparent;
            box-shadow: 0 2px 8px -2px rgba(59, 63, 175, 0.4);
        }

        .stat-value {
            background: var(--grad-brand);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        /* === Coherencia en pestañas Web3 y Artículos === */

        /* Web3: pestañas activas (DeFi / Liquid Staking) con el gradiente de marca */
        .market-tab-btn.active,
        [data-theme="dark"] .market-tab-btn.active {
            background: var(--grad-brand);
            border-color: transparent;
            color: #FFFFFF;
            box-shadow: 0 4px 14px -4px rgba(59, 63, 175, 0.45);
        }

        /* Tarjetas de protocolos con la misma elevación premium que el resto */
        .protocol-card {
            box-shadow: var(--shadow-card);
        }

        .protocol-card:hover {
            box-shadow: var(--shadow-card-hover);
        }

        /* Badges de artículo tipo "pill" para igualar el resto de tags */
        .article-type {
            border-radius: 99px;
        }

        /* Barra de acento centrada cuando la cabecera está centrada (Artículos) */
        .section-header[style*="center"] h2::after {
            left: 50%;
            transform: translateX(-50%);
        }

        /* === Competencias: chips en lugar de barras de progreso === */
        .skill-cat-desc {
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        .skill-chips {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-xs);
            margin-top: var(--space-md);
        }

        .skill-chip {
            display: inline-flex;
            align-items: center;
            padding: 7px 14px;
            border-radius: 99px;
            font-size: 0.85rem;
            font-weight: 600;
            line-height: 1.2;
            background: rgba(59, 63, 175, 0.08);
            color: var(--color-primary);
            border: 1px solid rgba(59, 63, 175, 0.14);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .skill-chip--core {
            background: var(--grad-brand);
            color: #FFFFFF;
            border-color: transparent;
            box-shadow: 0 4px 12px -4px rgba(59, 63, 175, 0.4);
        }

        .skill-chip:hover {
            transform: translateY(-2px);
        }

        [data-theme="dark"] .skill-chip {
            background: rgba(99, 102, 241, 0.14);
            color: #C7D2FE;
            border-color: rgba(99, 102, 241, 0.25);
        }

        [data-theme="dark"] .skill-chip--core {
            background: var(--grad-brand);
            color: #FFFFFF;
            border-color: transparent;
        }

/* ============================================
   WEB3 SIMULATOR — append to static/css/main.css
   Reuses existing tokens (--color-primary, --color-accent,
   --bg-*, --text-*, --border-color, --radius-*, --shadow-*).
   ============================================ */

.live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-success);
  display: inline-block; margin-right: 6px;
  animation: pulseDot 1.8s ease-in-out infinite;
}
@keyframes pulseDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .4; transform: scale(.75); } }
@media (prefers-reduced-motion: reduce) { .live-dot { animation: none; } }

/* Stock cards reuse .protocol-card from main.css; this just adds the ticker badge + trend row */
/* Grid de 4 columnas en desktop → 4+3 (más equilibrado que el 5+2 de auto-fit). */
#cryptoStocksGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (min-width: 640px) { #cryptoStocksGrid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 960px) { #cryptoStocksGrid { grid-template-columns: repeat(4, 1fr); } }

.stock-card { display: flex; flex-direction: column; }
.stock-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.stock-badge {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  background: var(--bg-elevated-soft); border: 1px solid var(--border-light);
  font-weight: 800; font-size: 0.7rem;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
[data-theme="dark"] .stock-badge { background: rgba(59, 63, 175, 0.1); border-color: rgba(59, 63, 175, 0.3); }
.stock-badge img { width: 100%; height: 100%; object-fit: contain; padding: 5px; }
.stock-badge-fallback { color: var(--text-main); }
.stock-ticker { font-weight: 700; color: var(--text-main); }
.stock-company { font-size: 0.75rem; color: var(--text-muted); }
.stock-price-row { display: flex; align-items: baseline; justify-content: space-between; }
/* Precio en color neutro: la única señal semántica rojo/verde es el delta. */
.stock-price { font-size: 1.3rem; font-weight: 800; color: var(--text-main); }
.stock-change { font-size: 0.85rem; font-weight: 700; white-space: nowrap; }
.stock-change.positive { color: #10b981; }
.stock-change.negative { color: #ef4444; }
[data-theme="dark"] .stock-change.positive { color: #34d399; }
[data-theme="dark"] .stock-change.negative { color: #f87171; }

/* Sparkline: color semántico (verde sube / rojo baja), a juego con el delta. */
.stock-spark { width: 100%; height: 30px; display: block; margin: 12px 0 2px; }
.stock-spark.positive { color: #10b981; }
.stock-spark.negative { color: #ef4444; }
[data-theme="dark"] .stock-spark.positive { color: #34d399; }
[data-theme="dark"] .stock-spark.negative { color: #f87171; }
.stock-spark-area { fill: currentColor; opacity: 0.10; stroke: none; }

.stock-note { font-size: 0.8rem; color: var(--text-muted); margin-top: 10px; line-height: 1.5; }

/* Etiqueta de categoría: da significado al color del borde/badge (tipo de
   empresa) y sirve de leyenda inline en cada tarjeta. */
.stock-cat {
  margin-left: auto; align-self: flex-start; white-space: nowrap;
  font-size: 0.6rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
  padding: 2px 7px; border-radius: 999px; border: 1px solid; opacity: 0.9;
}

/* Cifras con numeración tabular: alinean como datos financieros. */
.stock-price, .strategy-price, .instrument-metric-value, .instrument-total-value {
  font-variant-numeric: tabular-nums;
}

/* Intro de toda la sección Market Intelligence + contexto del simulador. */
.market-intro {
  max-width: 780px; margin: 4px 0 0; font-size: 1rem; line-height: 1.7; color: var(--text-body);
}
.market-intelligence .section-header {
  margin-bottom: var(--space-md);
}
.strategy-why {
  max-width: 720px; margin: 0 0 24px; font-size: 0.9rem; line-height: 1.6; color: var(--text-body);
  padding: 14px 16px; background: var(--bg-elevated-soft);
  border-radius: var(--radius-md); border: 1px solid var(--border-color);
}

.risk-note {
  font-size: 0.85rem; color: #ef4444; max-width: 680px; margin-bottom: 32px;
  padding: 12px 16px; border: 1px solid var(--border-color); border-left: 3px solid #ef4444;
  border-radius: var(--radius-sm); background: var(--white);
}

.strategy-layout { display: grid; grid-template-columns: 340px 1fr; gap: 24px; align-items: start; }
@media (max-width: 860px) { .strategy-layout { display: flex; flex-direction: column; } }

.strategy-console-sticky { position: sticky; top: 88px; }
@media (max-width: 860px) { .strategy-console-sticky { position: sticky; top: 64px; z-index: 5; } }

.strategy-console { border-top: 3px solid var(--color-primary); }

.strategy-label { font-size: 0.85rem; color: var(--text-body); display: block; margin-bottom: 6px; }
.strategy-price-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.strategy-price { font-size: 1.5rem; font-weight: 800; color: var(--color-primary); }
.strategy-live { font-size: 0.75rem; color: var(--text-muted); display: flex; align-items: center; }

#btcSlider { width: 100%; margin-bottom: 20px; -webkit-appearance: none; appearance: none; height: 4px; border-radius: 4px; background: var(--border-color); outline: none; }
#btcSlider::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--color-primary); cursor: pointer; }

.strategy-input-wrap {
  display: flex; align-items: center; background: var(--bg-elevated-soft);
  border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  padding: 10px 12px; margin-bottom: 20px; gap: 4px; color: var(--text-muted);
}
.strategy-input-wrap input { background: transparent; border: none; outline: none; color: var(--text-main); font-size: 15px; width: 100%; }

.strategy-horizon-group { display: flex; gap: 8px; margin-bottom: 24px; }
.strategy-horizon-btn {
  padding: 6px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-color);
  background: transparent; color: var(--text-muted); font-weight: 600; font-size: 0.8rem; cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}
.strategy-horizon-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.strategy-horizon-btn.active {
  background: var(--color-primary); border-color: var(--color-primary); color: #fff; font-weight: 700;
  box-shadow: 0 2px 8px rgba(59, 63, 175, 0.35);
}
.strategy-horizon-btn:focus-visible,
.instrument-head:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.strategy-mnav-row { display: flex; align-items: center; gap: 18px; padding-top: 16px; border-top: 1px solid var(--border-color); }
/* Gauge circular: el fondo muestra TODO el espectro (rojo <1.0× → ámbar → verde);
   la aguja (.strategy-mnav-needle) marca dónde cae el escenario actual. Umbral
   1.0× ≈ 83°, zona ámbar 0.85×–1.0× ≈ 62°–83°, sobre el rango 0.4×–3×. */
.strategy-mnav-ring {
  width: 88px; height: 88px; border-radius: 50%; flex-shrink: 0; position: relative;
  display: flex; align-items: center; justify-content: center;
  background: conic-gradient(from 0deg, #ef4444 0 62deg, #F59E0B 62deg 83deg, #10b981 83deg 360deg);
}
.strategy-mnav-needle {
  position: absolute; top: 0; left: 50%; width: 3px; height: 13px; z-index: 3;
  background: var(--text-main); border-radius: 0 0 2px 2px;
  transform-origin: 50% 44px; transform: translateX(-50%) rotate(var(--mnav-angle, 0deg));
}
.strategy-mnav-ring-inner {
  width: 66px; height: 66px; border-radius: 50%; background: var(--bg-main); z-index: 2;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.15rem; color: var(--text-main); font-variant-numeric: tabular-nums;
}
.strategy-mnav-label { font-size: 0.8rem; color: var(--text-body); line-height: 1.4; }
.strategy-mnav-help {
  font-size: 0.72rem; color: var(--text-body); line-height: 1.55; margin-top: 16px;
  padding: 10px 12px; background: var(--bg-elevated-soft);
  border: 1px solid var(--border-color); border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-sm);
}
@media (prefers-reduced-motion: reduce) { .strategy-mnav-needle { transition: none; } }

.instrument-row { border-left: 4px solid; margin-bottom: 12px; overflow: hidden; }
.instrument-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; cursor: pointer; }
.instrument-head:hover { background: var(--bg-elevated-soft); }
/* Badge neutro: el color por seniority vive solo en la barra lateral izquierda,
   sin duplicarse aquí — evita competir con el acento índigo de la sección. */
.instrument-badge { width: 38px; height: 26px; border-radius: var(--radius-sm); background: var(--bg-elevated-soft); color: var(--text-muted); font-weight: 700; font-size: 11px; display: flex; align-items: center; justify-content: center; }
.instrument-chevron { transition: transform 300ms ease; color: var(--text-muted); }
.instrument-row.expanded .instrument-chevron { transform: rotate(180deg); }
.instrument-panel { max-height: 0; opacity: 0; transition: max-height 300ms ease, opacity 300ms ease; overflow: hidden; }
.instrument-row.expanded .instrument-panel { max-height: 460px; opacity: 1; }
.instrument-panel-inner { padding: 0 20px 20px; border-top: 1px solid var(--border-color); }
.instrument-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.instrument-metric { background: var(--bg-elevated-soft); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 14px; }
.instrument-metric-label { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 4px; }
.instrument-metric-hint { color: var(--text-muted); opacity: 0.8; }
.instrument-metric-value { font-weight: 700; font-size: 1.1rem; color: var(--text-main); }
/* Fila de total: deja claro que principal y cupón se suman aquí (evita que el
   usuario intente sumarlos mentalmente de forma inconsistente). */
.instrument-total {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 12px; padding: 12px 14px; border-radius: var(--radius-md);
  background: var(--color-primary-soft); border: 1px solid var(--color-primary);
}
.instrument-total-label { font-size: 0.8rem; color: var(--text-body); }
.instrument-total-value { font-weight: 800; font-size: 1.15rem; color: var(--color-primary); }
[data-theme="dark"] .instrument-total-value { color: var(--text-main); }
.instrument-convert-note {
  margin-top: 12px; font-size: 0.8rem; padding: 10px 12px; border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-accent-warm, #F59E0B); background: var(--bg-elevated-soft);
}

.strategy-summary { border-top: 3px solid var(--color-primary); margin-top: 20px; }
.strategy-disclaimer { margin-top: 20px; font-size: 0.75rem; color: var(--text-muted); line-height: 1.6; padding: 14px 16px; border: 1px solid var(--border-color); border-radius: var(--radius-sm); }