/* Reset y estilos base */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            text-decoration: none;
            font-family: 'Inter', sans-serif;
        }

        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #64748b;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #94a3b8;
            --accent: #f59e0b;
            --success: #10b981;
            --border-radius: 12px;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s ease;
        }

        /* Tema oscuro */
        [data-theme="dark"] {
            --dark: #f8fafc;
            --light: #0f172a;
            --secondary: #cbd5e1;
            --gray: #475569;
        }

        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            padding: 15px 0;
            transition: var(--transition);
        }

        [data-theme="dark"] header {
            background: rgba(15, 23, 42, 0.95);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 24px;
            color: var(--dark);
        }

        .logo span {
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .nav-menu li a {
            color: var(--secondary);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

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

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .btn {
            padding: 10px 20px;
            border-radius: var(--border-radius);
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

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

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

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

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

        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark);
        }

        /* Selector de tema */
        .theme-selector {
            position: relative;
        }

        .theme-btn {
            background: transparent;
            border: none;
            color: var(--dark);
            font-size: 20px;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: var(--transition);
        }

        .theme-btn:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        [data-theme="dark"] .theme-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Hero Section */
        .hero {
            padding: 150px 0 100px;
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            position: relative;
            overflow: hidden;
        }

        [data-theme="dark"] .hero {
            background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 100%);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="%23dbeafe" opacity="0.5"/></svg>');
            background-size: cover;
        }

        [data-theme="dark"] .hero::before {
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="%230c4a6e" opacity="0.5"/></svg>');
        }

        .hero-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .hero-content h1 span {
            color: var(--primary);
        }

        .hero-content p {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-image {
            position: relative;
            text-align: center;
        }

        .hero-image img {
            max-width: 100%;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

        /* Services Section */
        .services {
            padding: 100px 0;
            background-color: var(--light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Filtro de servicios */
        .services-filter {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 40px;
        }

        .filter-btn {
            padding: 10px 20px;
            background: var(--light);
            border: 1px solid var(--gray);
            border-radius: 30px;
            color: var(--secondary);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-btn:hover, .filter-btn.active {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--light);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            border: 1px solid;
            border-color: rgba(0, 0, 0, 0.1);
            text-align: center;
            opacity: 1;
            transform: translateY(0);
        }

        [data-theme="dark"] .service-card {
            border-color: rgba(255, 255, 255, 0.1);
        }

        .service-card.hidden {
            display: none;
        }

        .service-card.fade-out {
            opacity: 0;
            transform: translateY(20px);
        }

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

        .service-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 28px;
        }

        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .service-card p {
            color: var(--secondary);
            margin-bottom: 20px;
        }

        .service-link {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: var(--transition);
        }

        .service-link:hover {
            gap: 10px;
        }

        /* Features Section */
        .features {
            padding: 100px 0;
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
        }

        [data-theme="dark"] .features {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
        }

        .features-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .features-content h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .features-content p {
            font-size: 1.1rem;
            color: var(--secondary);
            margin-bottom: 30px;
        }

        .features-list {
            list-style: none;
        }

        .features-list li {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
        }

        .features-list li i {
            color: var(--success);
            font-size: 20px;
            margin-top: 3px;
        }

        .features-list li span {
            font-weight: 500;
            color: var(--dark);
        }

        .features-image {
            position: relative;
        }

        .features-image img {
            max-width: 100%;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

        /* CTA Section */
        .cta {
            padding: 100px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            text-align: center;
        }

        .cta h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .cta p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }

        .cta .btn {
            background-color: white;
            color: var(--primary);
            font-weight: 600;
        }

        .cta .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 80px 0 30px;
        }

        [data-theme="dark"] footer {
            background-color: #020617;
        }

        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-col h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: white;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--gray);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: white;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }

        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            transition: var(--transition);
        }

        .social-links a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }

        /* WhatsApp Button */
        .whatsapp-float {
            position: fixed;
            bottom: 25px;
            right: 25px;
            z-index: 100;
        }

        .whatsapp-button {
            width: 60px;
            height: 60px;
            background: #25D366;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(37, 211, 102, 0.3);
            cursor: pointer;
            transition: var(--transition);
            animation: pulse 2s infinite;
        }

        .whatsapp-button:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 15px rgba(37, 211, 102, 0.4);
            animation: none;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
            }
        }

        .whatsapp-button img {
            width: 35px;
            height: 35px;
        }

        /* Chatbot */
        .chatbot-container {
            position: fixed;
            bottom: 100px;
            right: 25px;
            width: 350px;
            height: 500px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            display: none;
            flex-direction: column;
            overflow: hidden;
            transition: var(--transition);
        }

        [data-theme="dark"] .chatbot-container {
            background: #1e293b;
            color: white;
        }

        .chatbot-container.active {
            display: flex;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .chatbot-header {
            background: var(--primary);
            color: white;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .chatbot-header h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
        }

        .chatbot-close {
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            line-height: 1;
        }

        .chatbot-messages {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .message {
            display: flex;
            max-width: 80%;
        }

        .message.bot {
            align-self: flex-start;
        }

        .message.user {
            align-self: flex-end;
        }

        .message-content {
            padding: 12px 15px;
            border-radius: 18px;
            background: #f1f5f9;
            color: #334155;
        }

        [data-theme="dark"] .message-content {
            background: #334155;
            color: #e2e8f0;
        }

        .message.user .message-content {
            background: var(--primary);
            color: white;
        }

        .message-time {
            font-size: 11px;
            margin-top: 5px;
            opacity: 0.7;
        }

        /* Indicador de escritura del chatbot anterior */
        .chatbot-typing {
            display: none;
            padding: 10px 20px;
            align-items: center;
            gap: 10px;
        }

        .typing-dots {
            display: flex;
            gap: 3px;
        }

        .typing-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--gray);
            animation: typingAnimation 1.4s infinite ease-in-out;
        }

        .typing-dot:nth-child(1) { animation-delay: -0.32s; }
        .typing-dot:nth-child(2) { animation-delay: -0.16s; }

        @keyframes typingAnimation {
            0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
            40% { transform: scale(1); opacity: 1; }
        }

        .chatbot-input {
            padding: 15px;
            border-top: 1px solid #e2e8f0;
            display: flex;
            gap: 10px;
        }

        [data-theme="dark"] .chatbot-input {
            border-top: 1px solid #334155;
        }

        .chatbot-input input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid #e2e8f0;
            border-radius: 30px;
            outline: none;
            background: var(--light);
            color: var(--dark);
        }

        [data-theme="dark"] .chatbot-input input {
            border: 1px solid #334155;
            background: #1e293b;
            color: white;
        }

        .chatbot-input button {
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .chatbot-input button:hover {
            background: var(--primary-dark);
        }

        /* Mobile Menu */
        .mobile-menu {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            height: calc(100vh - 80px);
            background: var(--light);
            z-index: 999;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            padding: 30px 20px;
            overflow-y: auto;
        }

        .mobile-menu.active {
            transform: translateX(0);
        }

        .mobile-menu ul {
            list-style: none;
        }

        .mobile-menu ul li {
            margin-bottom: 20px;
        }

        .mobile-menu ul li a {
            color: var(--dark);
            font-size: 18px;
            font-weight: 500;
            display: block;
            padding: 10px 0;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }

        [data-theme="dark"] .mobile-menu ul li a {
            color: white;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .mobile-menu .mobile-actions {
            margin-top: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        /* Overlay para móvil */
        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 998;
            display: none;
        }

        .mobile-overlay.active {
            display: block;
        }

        /* Responsive Design Mejorado */
        @media (max-width: 992px) {
            .hero-container,
            .features-container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            
            .hero-content h1 {
                font-size: 2.8rem;
            }
            
            .hero::before {
                display: none;
            }

            .chatbot-container {
                width: 300px;
                height: 450px;
            }

            .services-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .hero-content h1 {
                font-size: 2.2rem;
            }
            
            .section-header h2 {
                font-size: 2rem;
            }
            
            .hero-actions {
                justify-content: center;
            }

            .chatbot-container {
                width: calc(100% - 40px);
                right: 20px;
                bottom: 90px;
                height: 400px;
            }

            .services-filter {
                gap: 10px;
                overflow-x: auto;
                padding-bottom: 10px;
                justify-content: flex-start;
            }

            .filter-btn {
                padding: 8px 16px;
                font-size: 14px;
                white-space: nowrap;
            }

            .services-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .service-card {
                padding: 20px;
            }

            .features-container {
                gap: 30px;
            }

            .features-content h2 {
                font-size: 2rem;
            }

            .cta h2 {
                font-size: 2rem;
            }

            .footer-container {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
            }

            .social-links {
                justify-content: center;
            }

            .hero {
                padding: 130px 0 80px;
            }

            .services, .features, .cta {
                padding: 80px 0;
            }
        }

        @media (max-width: 576px) {
            .hero {
                padding: 120px 0 60px;
            }
            
            .hero-content h1 {
                font-size: 1.8rem;
            }

            .hero-content p {
                font-size: 1rem;
            }
            
            .services, .features, .cta {
                padding: 60px 0;
            }

            .services-filter {
                gap: 8px;
            }

            .filter-btn {
                padding: 6px 12px;
                font-size: 12px;
            }

            .section-header h2 {
                font-size: 1.8rem;
            }

            .section-header p {
                font-size: 1rem;
            }

            .service-card h3 {
                font-size: 1.3rem;
            }

            .features-content h2 {
                font-size: 1.8rem;
            }

            .cta h2 {
                font-size: 1.8rem;
            }

            .cta p {
                font-size: 1rem;
            }

            .btn {
                padding: 8px 16px;
                font-size: 14px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-actions .btn {
                width: 100%;
                max-width: 250px;
            }

            .nav-actions {
                gap: 10px;
            }

            .nav-actions .btn {
                padding: 8px 12px;
                font-size: 14px;
            }

            .logo {
                font-size: 20px;
            }

            .whatsapp-button {
                width: 50px;
                height: 50px;
            }

            .whatsapp-button img {
                width: 28px;
                height: 28px;
            }
        }

        @media (max-width: 380px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .service-card {
                padding: 15px;
            }

            .container {
                padding: 0 15px;
            }
        }