:root {
            --primary-color: #007BFF;
            --secondary-color: #FF6B00;
            --dark-color: #212529;
            --light-color: #f8f9fa;
            --gradient: linear-gradient(135deg, #007BFF 0%, #0056b3 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            overflow-x: hidden;
            background-color: #f8f9fa;
        }
        
        /* Navbar Styles */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }
        
        .navbar-nav .nav-link {
            color: var(--dark-color) !important;
            font-weight: 500;
            margin: 0 10px;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary-color);
            transition: width 0.3s ease;
        }
        
        .navbar-nav .nav-link:hover::after {
            width: 100%;
        }
        
        /* Visitor Counter */
        .visitor-counter {
            position: fixed;
            top: 100px;
            right: 20px;
            background: white;
            padding: 15px 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            z-index: 999;
            min-width: 200px;
        }
        
        .visitor-counter h6 {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 5px;
        }
        
        .visitor-count {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--secondary-color);
        }
        
        /* Hero Section */
        .hero {
            min-height: 100vh;
            background: linear-gradient(135deg, rgba(0, 123, 255, 0.9) 0%, rgba(0, 86, 179, 0.9) 100%),
                        url('https://picsum.photos/seed/tech-education/1920/1080.jpg') center/cover;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: white;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        .hero p {
            font-size: 1.25rem;
            margin-bottom: 30px;
            color: rgba(255, 255, 255, 0.9);
        }
        
        .btn-custom {
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin: 5px;
        }
        
        .btn-primary-custom {
            background: var(--secondary-color);
            border: 2px solid var(--secondary-color);
            color: white;
        }
        
        .btn-primary-custom:hover {
            background: transparent;
            color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 107, 0, 0.3);
        }
        
        .btn-outline-custom {
            background: transparent;
            border: 2px solid white;
            color: white;
        }
        
        .btn-outline-custom:hover {
            background: white;
            color: var(--primary-color);
            transform: translateY(-3px);
        }
        
        /* Floating Animation */
        .floating {
            position: absolute;
            animation: float 6s ease-in-out infinite;
            opacity: 0.8;
        }
        
        .floating-1 {
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }
        
        .floating-2 {
            top: 60%;
            right: 10%;
            animation-delay: 2s;
        }
        
        .floating-3 {
            bottom: 20%;
            left: 20%;
            animation-delay: 4s;
        }
        
        @keyframes float {
            0%, 100% {
                transform: translateY(0) rotate(0deg);
            }
            50% {
                transform: translateY(-20px) rotate(5deg);
            }
        }
        
        /* Section Styles */
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark-color);
            position: relative;
            display: inline-block;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--secondary-color);
        }
        
        .section-subtitle {
            font-size: 1.1rem;
            color: #6c757d;
            margin-bottom: 50px;
        }
        
        /* Service Cards */
        .service-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--gradient);
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        /* Project Cards */
        .project-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            height: 100%;
            cursor: pointer;
        }
        
        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .project-img {
            height: 200px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }
        
        .project-content {
            padding: 25px;
        }
        
        /* Modal Styles */
        .modal-content {
            border-radius: 15px;
            overflow: hidden;
        }
        
        .modal-header {
            background: var(--gradient);
            color: white;
            border: none;
        }
        
        .modal-body {
            padding: 30px;
        }
        
        .carousel-item img {
            height: 300px;
            object-fit: cover;
            border-radius: 10px;
        }
        
        .feature-list {
            list-style: none;
            padding: 0;
        }
        
        .feature-list li {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
        }
        
        .feature-list li:last-child {
            border-bottom: none;
        }
        
        .feature-list i {
            color: var(--primary-color);
            margin-right: 10px;
        }
        
        /* Pricing Table */
        .pricing-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            position: relative;
            height: 100%;
        }
        
        .pricing-card.featured {
            transform: scale(1.05);
            border: 2px solid var(--secondary-color);
        }
        
        .pricing-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .pricing-card.featured:hover {
            transform: scale(1.05) translateY(-10px);
        }
        
        .price-tag {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .price-period {
            font-size: 1rem;
            color: #6c757d;
        }
        
        /* Video Section */
        .video-container {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }
        
        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-radius: 15px;
        }
        
        /* Contact Section */
        .contact-info {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        /* Map */
        .map-container {
            height: 400px;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        /* Floating Contact Buttons */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 1000;
        }
        
        .floating-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
            color: white;
            font-size: 1.5rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .floating-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        
        .whatsapp-btn {
            background: #25D366;
        }
        
        .email-btn {
            background: var(--primary-color);
        }
        
        .linkedin-btn {
            background: #0077B5;
        }
        
        /* Footer */
        footer {
            background: var(--dark-color);
            color: white;
            padding: 50px 0 20px;
        }
        
        .social-icons a {
            color: white;
            font-size: 1.5rem;
            margin: 0 10px;
            transition: all 0.3s ease;
        }
        
        .social-icons a:hover {
            color: var(--secondary-color);
            transform: translateY(-3px);
        }
        
        /* Playground Section Styles */
        .playground-section {
            scroll-margin-top: 80px;
        }

        .editor-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }

        .editor-card:hover {
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
            transform: translateY(-2px);
        }

        .editor-header {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px solid #dee2e6;
            font-weight: 600;
            color: var(--dark-color);
        }

        .editor-header span {
            display: flex;
            align-items: center;
            font-size: 0.95rem;
        }

        .copy-btn {
            padding: 5px 10px !important;
            color: var(--primary-color);
            transition: all 0.2s ease;
        }

        .copy-btn:hover {
            color: var(--secondary-color);
            transform: scale(1.1);
        }

        .editor-content {
            flex: 1;
            min-height: 280px;
            border: none !important;
            border-radius: 0;
        }

        .editor-content .CodeMirror {
            height: 100% !important;
            border-radius: 0 0 12px 12px;
            font-size: 13px;
            font-family: 'Fira Code', 'Consolas', monospace;
        }

        .CodeMirror {
            background: white;
            color: #333;
        }

        .CodeMirror-linenumber {
            color: #999;
            background: #f5f5f5;
        }

        .CodeMirror-cursor {
            border-left: 2px solid var(--primary-color);
        }

        .CodeMirror-selected {
            background: rgba(0, 123, 255, 0.2);
        }

        .output-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 5px;
        }

        .output-header h5 {
            color: var(--dark-color);
            font-weight: 700;
        }

        .output-container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            min-height: 350px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .preview-frame {
            width: 100%;
            height: 350px;
            border: none;
            border-radius: 12px;
            background: white;
        }

        .output-console {
            width: 100%;
            background: #1e1e1e;
            color: #00ff00;
            padding: 20px;
            margin: 0;
            min-height: 350px;
            border-radius: 12px;
            overflow-x: auto;
            font-family: 'Fira Code', monospace;
            font-size: 0.9rem;
            line-height: 1.5;
            box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
        }

        .output-console::-webkit-scrollbar {
            height: 8px;
        }

        .output-console::-webkit-scrollbar-track {
            background: #333;
        }

        .output-console::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 4px;
        }

        .output-console::-webkit-scrollbar-thumb:hover {
            background: var(--secondary-color);
        }

        .loading-spinner {
            min-height: 350px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .shortcuts-info {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
        }

        .shortcuts-info kbd {
            background: #f5f5f5;
            border: 1px solid #ddd;
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 0.85rem;
            margin: 0 2px;
            font-family: monospace;
            font-weight: 500;
        }

        .btn-link {
            text-decoration: none;
            padding: 0 !important;
        }

        .btn-link:focus {
            box-shadow: none;
        }

        /* Responsive Playground */
        @media (max-width: 1200px) {
            #frontend-editors {
                display: flex;
                flex-direction: column;
            }

            #frontend-editors > div {
                width: 100%;
            }

            .editor-content {
                min-height: 250px;
            }
        }

        @media (max-width: 768px) {
            .playground-toolbar {
                padding: 15px !important;
            }

            .playground-toolbar .d-flex {
                flex-direction: column;
            }

            .playground-toolbar label {
                margin-bottom: 10px;
            }

            #language {
                max-width: 100% !important;
            }

            .editor-content {
                min-height: 200px;
            }

            .output-container {
                min-height: 250px;
            }

            .preview-frame {
                height: 250px;
            }

            .output-console {
                min-height: 250px;
            }

            .shortcuts-info {
                font-size: 0.8rem;
                flex-wrap: wrap;
                gap: 8px;
            }

            .shortcuts-info kbd {
                padding: 2px 4px;
                font-size: 0.75rem;
            }
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .pricing-card.featured {
                transform: scale(1);
            }
            
            .visitor-counter {
                top: 80px;
                right: 10px;
                min-width: 150px;
            }
        }