* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* ========================================
        VARIABLES CSS - MODO OSCURO CON MORADO
        ======================================== */
        :root {
            /* Colores principales con integración morada */
            --primary: #8b5cf6;
            --primary-dark: #7c3aed;
            --primary-light: #a78bfa;
            --secondary: #6b7280;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --info: #06b6d4;
            
            /* Fondos modo oscuro */
            --bg-primary: #1e1b4b;
            --bg-secondary: #1e293b;
            --bg-tertiary: #312e81;
            --bg-card: #1e1b4b;
            --bg-hover: #312e81;
            
            /* Textos modo oscuro */
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            
            /* Bordes y líneas */
            --border: #4c1d95;
            --border-light: #5b21b6;
            
            /* Sombras mejoradas */
            --shadow: 0 4px 6px -1px rgba(139, 92, 246, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 10px 15px -3px rgba(139, 92, 246, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 25px 50px -12px rgba(139, 92, 246, 0.25), 0 8px 16px -4px rgba(0, 0, 0, 0.5);
            
            /* Radianes */
            --radius: 8px;
            --radius-sm: 4px;
            --radius-lg: 12px;
            --radius-xl: 16px;
        }

        body {
            font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-secondary);
            min-height: 100vh;
            overflow-x: hidden;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        /* Gradiente de fondo morado oscuro */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 30%, #4c1d95 70%, #5b21b6 100%);
            transition: opacity 0.3s ease;
        }

        /* ESTILOS PARA EL LOGO EDUONE - MORADO */
        .eduone-logo {
            font-family: 'Inter', 'Segoe UI', sans-serif;
            font-weight: 700;
            background: linear-gradient(135deg, #a78bfa 0%, #c4b5fd 50%, #ddd6fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            letter-spacing: -0.5px;
        }

        .eduone-xl { font-size: 4rem; line-height: 1.1; }
        .eduone-lg { font-size: 3rem; line-height: 1.2; }
        .eduone-md { font-size: 2rem; line-height: 1.3; }
        .eduone-sm { font-size: 1.5rem; line-height: 1.4; }
        .eduone-xs { font-size: 1rem; line-height: 1.5; }

        /* Navegación */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: var(--bg-primary);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: all 0.3s ease;
            box-shadow: var(--shadow);
        }

        .navbar.scrolled {
            background: rgba(30, 27, 75, 0.98);
            box-shadow: var(--shadow-lg);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
        }

        .nav-buttons {
            display: flex;
            gap: 0.75rem;
            align-items: center;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transition: left 0.5s ease;
        }

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

        .btn-outline {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            backdrop-filter: blur(8px);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(139, 92, 246, 0.1);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary {
            background: linear-gradient(45deg, var(--primary), var(--primary-dark), #6d28d9);
            color: white;
            border: 1px solid transparent;
            box-shadow: var(--shadow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
            filter: brightness(1.1);
        }

        /* Hero Section */
        .hero {
            margin-top: 80px;
            padding: 4rem 2rem;
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 50%, #5b21b6 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
            animation: rotate 30s linear infinite;
        }

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

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .hero-content .highlight {
            background: linear-gradient(135deg, #a78bfa 0%, #c4b5fd 50%, #ddd6fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.25rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        /* Info Box Principal */
        .pricing-intro {
            padding: 3rem 2rem;
            background: var(--bg-secondary);
        }

        .pricing-intro-container {
            max-width: 1000px;
            margin: 0 auto;
        }

        .info-box {
            background: var(--bg-hover);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 2rem;
            margin-bottom: 2rem;
            text-align: center;
        }

        .info-box h3 {
            color: var(--primary);
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .info-box-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
            text-align: left;
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
        }

        .info-item i {
            color: var(--primary);
            font-size: 1.2rem;
            margin-top: 0.2rem;
        }

        .info-item-content h4 {
            color: var(--text-primary);
            font-weight: 600;
            margin-bottom: 0.25rem;
        }

        .info-item-content p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Pricing Section */
        .pricing {
            padding: 4rem 2rem;
            background: var(--bg-primary);
        }

        .pricing-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .section-header p {
            font-size: 1.125rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .plans-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-top: 2rem;
        }

        .plan-card {
            background: var(--bg-card);
            border: 2px solid var(--border);
            border-radius: 20px;
            padding: 0;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            min-height: 600px;
        }

        .plan-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(45deg, var(--secondary), var(--primary));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .plan-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }

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

        /* Popular Badge */
        .popular-badge {
            position: absolute;
            top: -10px;
            right: 20px;
            background: linear-gradient(45deg, #f59e0b, #d97706);
            color: white;
            padding: 8px 16px;
            border-radius: 0 0 12px 12px;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            z-index: 5;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* Header del Plan */
        .plan-header {
            padding: 2rem 2rem 1rem;
            text-align: center;
            border-bottom: 1px solid var(--border);
        }

        .plan-badge {
            display: inline-block;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.5rem;
        }

        .plan-badge-monthly {
            background: linear-gradient(45deg, var(--primary), var(--primary-dark));
            color: white;
        }

        .plan-badge-semester {
            background: linear-gradient(45deg, #f59e0b, #d97706);
            color: white;
        }

        .plan-header h4 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0.5rem 0;
        }

        .plan-description {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Pricing Section */
        .plan-pricing {
            padding: 1.5rem 2rem;
            border-bottom: 1px solid var(--border);
        }

        .pricing-section {
            margin-bottom: 1rem;
            text-align: center;
        }

        .pricing-section:last-child {
            margin-bottom: 0;
        }

        .pricing-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .plan-price-discount {
            background: var(--success);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 0.5rem;
            text-transform: uppercase;
        }

        .plan-price-main {
            font-size: 2.5rem;
            font-weight: 700;
            color: #fbbf24;
            display: block;
            line-height: 1;
            margin: 0.5rem 0;
        }

        .plan-price-original {
            font-size: 1.2rem;
            color: var(--text-muted);
            text-decoration: line-through;
            margin-bottom: 0.5rem;
        }

        .plan-price-period {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .price-breakdown {
            font-size: 0.75rem;
            color: var(--text-muted);
            padding: 0.5rem;
            background: var(--bg-tertiary);
            border-radius: 8px;
            margin-top: 0.5rem;
        }

        /* Savings Indicator */
        .savings-indicator {
            background: var(--success);
            color: white;
            padding: 0.75rem 1.5rem;
            margin: 0 2rem;
            border-radius: 12px;
            font-size: 0.85rem;
            font-weight: 600;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        /* Features */
        .plan-features {
            padding: 1.5rem 2rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .plan-feature {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding: 0.5rem 0;
        }

        .plan-feature i {
            color: var(--primary);
            font-size: 1rem;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        /* Footer del Plan */
        .plan-footer {
            padding: 1.5rem 2rem;
            border-top: 1px solid var(--border);
            background: var(--bg-tertiary);
        }

        .plan-highlight {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }

        .plan-highlight:last-child {
            margin-bottom: 0;
        }

        .plan-highlight i {
            font-size: 0.9rem;
        }

        /* Contact Section */
        .contact-section {
            padding: 4rem 2rem;
            background: var(--bg-secondary);
        }

        .contact-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .contact-info {
            background: var(--bg-tertiary);
            border-radius: var(--radius-lg);
            padding: 2rem;
            margin-top: 2rem;
            border: 1px solid var(--border);
        }

        .contact-info h4 {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .contact-info p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .whatsapp-btn {
            background: #25d366;
            color: white;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

        .whatsapp-btn:hover {
            background: #128c7e;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
        }

        /* Payment Info */
        .payment-info {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            margin-top: 2rem;
        }

        .payment-method {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .payment-method i {
            font-size: 2rem;
            color: var(--primary);
        }

        .payment-method h3 {
            font-size: 1.5rem;
            color: var(--text-primary);
        }

        .payment-details {
            display: grid;
            gap: 1rem;
            text-align: left;
            max-width: 400px;
            margin: 0 auto;
        }

        .payment-detail {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem;
            background: var(--bg-tertiary);
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }

        .payment-detail strong {
            color: var(--text-primary);
        }

        .payment-detail span {
            color: #fbbf24;
            font-weight: 600;
        }

        /* Footer */
        .footer {
            background: var(--bg-primary);
            color: var(--text-secondary);
            padding: 4rem 2rem 2rem;
            border-top: 1px solid var(--border);
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-brand h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .footer-brand p {
            line-height: 1.8;
        }

        .footer-section h4 {
            font-size: 1rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section li {
            margin-bottom: 0.75rem;
        }

        .footer-section a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-section a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border);
            color: var(--text-muted);
        }

        /* Números importantes resaltados */
        .important-number {
            color: #fbbf24;
            font-weight: 700;
        }

        .pricing-highlight {
            background: rgba(251, 191, 36, 0.1);
            border: 1px solid #fbbf24;
            border-radius: var(--radius);
            padding: 0.75rem;
            margin: 0.5rem 0;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fbbf24;
            text-align: center;
        }

        .billing-clarification {
            background: rgba(251, 191, 36, 0.15);
            border: 2px solid #fbbf24;
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin: 1.5rem 0;
            color: var(--text-primary);
        }

        .billing-clarification h4 {
            color: #fbbf24;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .billing-clarification .important-number {
            font-size: 1.1em;
        }

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

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

        /* Responsive */
        @media (max-width: 768px) {
            .nav-buttons {
                gap: 0.5rem;
            }

            .btn {
                padding: 0.6rem 1rem;
                font-size: 0.85rem;
            }

            .hero-content h1 {
                font-size: 2.5rem;
            }

            .hero-content p {
                font-size: 1.125rem;
            }

            .plans-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .plan-card {
                margin: 0 1rem;
                min-height: auto;
            }

            .plan-price-main {
                font-size: 2rem;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }

            .payment-details {
                max-width: 100%;
            }

            .section-header h2 {
                font-size: 2rem;
            }

            .info-box-content {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .nav-container {
                padding: 1rem;
            }

            .hero {
                padding: 3rem 1rem;
            }

            .hero-content h1 {
                font-size: 2rem;
            }

            .pricing {
                padding: 3rem 1rem;
            }

            .pricing-intro {
                padding: 2rem 1rem;
            }

            .contact-section {
                padding: 3rem 1rem;
            }
        }