:root {
            --gradient-primary: linear-gradient(105deg, #4F46E5, #A78BFA);
            --gradient-secondary: linear-gradient(105deg, #10B981, #22D3EE);
            --bg-page: #0A0A0A;
            --bg-surface: #141414;
            --border: #27272A;
            --text-primary: #E4E4E7;
            --text-secondary: #A1A1AA;
            --success: #10B981;
            --warning: #F59E0B;
            --error: #EF4444;
            --brand-blue: #4F46E5;
            
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-xxl: 64px;
            --spacing-xxxl: 96px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-page);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        /* Navegación */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(10, 10, 10, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            padding: var(--spacing-sm) var(--spacing-xl);
        }
        
        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 24px;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: var(--spacing-lg);
        }
        
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .nav-links a:hover {
            color: var(--text-primary);
        }
        
        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: 
                radial-gradient(ellipse at 20% 50%, rgba(79, 70, 229, 0.1) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
                var(--bg-page);
            padding: var(--spacing-xxxl) var(--spacing-xl);
            position: relative;
        }
        
        .hero-content {
            max-width: 800px;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s ease-out 0.5s forwards;
        }
        
        .hero h1 {
            font-size: clamp(40px, 5vw, 64px);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: var(--spacing-lg);
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero p {
            font-size: 20px;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-xl);
            line-height: 1.6;
        }
        
        .cta-button {
            display: inline-block;
            padding: var(--spacing-sm) var(--spacing-lg);
            background: var(--gradient-primary);
            color: var(--text-primary);
            text-decoration: none;
            border-radius: 16px;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
            cursor: pointer;
        }
        
        .cta-button:hover {
            transform: scale(1.03);
            box-shadow: 0 0 24px rgba(79, 70, 229, 0.4);
        }
        
        /* Secciones */
        .section {
            padding: var(--spacing-xxxl) var(--spacing-xl);
            max-width: 1280px;
            margin: 0 auto;
        }
        
        .section h2 {
            font-size: clamp(32px, 4vw, 40px);
            font-weight: 700;
            text-align: center;
            margin-bottom: var(--spacing-xl);
            color: var(--text-primary);
        }
        
        .section p {
            text-align: center;
            color: var(--text-secondary);
            font-size: 18px;
            max-width: 600px;
            margin: 0 auto var(--spacing-xl);
        }
        
        /* Grid de tarjetas */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        
        .card {
            background: var(--bg-surface);
            border-radius: 16px;
            padding: var(--spacing-lg);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid var(--border);
            opacity: 0;
            transform: translateY(30px);
        }
        
        .card.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 0 24px rgba(79, 70, 229, 0.2);
        }
        
        .card h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        
        .card p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
            text-align: left;
        }
        
        .card-icon {
            width: 48px;
            height: 48px;
            margin-bottom: var(--spacing-sm);
            background: var(--gradient-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .card-icon svg {
            width: 24px;
            height: 24px;
            fill: white;
        }
        
        /* Herramientas Interactivas */
        .tools-section {
            background: var(--bg-surface);
            margin: var(--spacing-xxxl) 0;
            border-radius: 24px;
            padding: var(--spacing-xl);
        }
        
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: var(--spacing-xl);
            margin-top: var(--spacing-xl);
        }
        
        .tool {
            background: var(--bg-page);
            border-radius: 16px;
            padding: var(--spacing-lg);
            border: 1px solid var(--border);
        }
        
        .tool h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            text-align: center;
        }
        
        .tool-form {
            display: grid;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-lg);
        }
        
        .form-group {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }
        
        .form-group label {
            font-weight: 500;
            color: var(--text-primary);
        }
        
        .form-group input {
            height: 52px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: var(--spacing-sm);
            color: var(--text-primary);
            font-size: 16px;
            transition: all 0.3s ease;
        }
        
        .form-group input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }
        
        .tool-button {
            width: 100%;
            padding: var(--spacing-sm);
            background: var(--gradient-secondary);
            color: var(--text-primary);
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .tool-button:hover {
            transform: scale(1.02);
            box-shadow: 0 0 24px rgba(16, 185, 129, 0.4);
        }
        
        .result {
            margin-top: var(--spacing-md);
            padding: var(--spacing-sm);
            background: var(--bg-surface);
            border-radius: 8px;
            border-left: 4px solid var(--success);
        }
        
        .result h4 {
            color: var(--success);
            margin-bottom: var(--spacing-xs);
        }
        
        .result p {
            color: var(--text-secondary);
            font-size: 16px;
            margin: 0;
            text-align: left;
        }
        
        /* Canvas para gráficos */
        .chart-container {
            margin-top: var(--spacing-md);
            height: 200px;
            background: var(--bg-page);
            border-radius: 8px;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        
        canvas {
            width: 100%;
            height: 100%;
        }
        
        /* Lista de casos de uso */
        .use-cases-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        
        .use-case {
            background: var(--bg-surface);
            border-radius: 12px;
            padding: var(--spacing-md);
            border: 1px solid var(--border);
        }
        
        .use-case h4 {
            color: var(--brand-blue);
            margin-bottom: var(--spacing-xs);
        }
        
        .use-case p {
            color: var(--text-secondary);
            font-size: 16px;
            text-align: left;
        }
        
        /* Footer */
        .footer {
            background: var(--bg-surface);
            padding: var(--spacing-xl);
            text-align: center;
            border-top: 1px solid var(--border);
            margin-top: var(--spacing-xxxl);
        }
        
        .footer p {
            color: var(--text-secondary);
            margin: 0;
        }
        
        /* Animaciones */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hero {
                padding: var(--spacing-xxl) var(--spacing-md);
            }
            
            .section {
                padding: var(--spacing-xl) var(--spacing-md);
            }
            
            .tool-grid {
                grid-template-columns: 1fr;
            }
            
            .cards-grid {
                grid-template-columns: 1fr;
            }
        }
        
        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: var(--bg-surface);
        }
        
        ::-webkit-scrollbar-thumb {
            background: var(--gradient-primary);
            border-radius: 4px;
        }
        
        /* Texto con gradiente */
        .gradient-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }