        :root {
            /* Light Mode Colors */
            --cyan-primary: #00BCD4;
            --cyan-light: #4DD0E1;
            --cyan-dark: #0097A7;
            --cyan-accent: #00E5FF;
            
            --magenta-primary: #E91E63;
            --magenta-light: #F06292;
            --magenta-dark: #C2185B;
            --magenta-accent: #FF4081;
            
            --bg-primary: #FFFFFF;
            --bg-secondary: #F5F5F5;
            --bg-tertiary: #EEEEEE;
            --text-primary: #212121;
            --text-secondary: #424242;
            --text-tertiary: #616161;
            --border-color: rgba(0, 0, 0, 0.08);
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
            
            --gradient-primary: linear-gradient(135deg, var(--cyan-primary), var(--magenta-primary));
            --gradient-hover: linear-gradient(135deg, var(--cyan-light), var(--magenta-light));
        }

        [data-theme="dark"] {
            --bg-primary: #121212;
            --bg-secondary: #1E1E1E;
            --bg-tertiary: #2A2A2A;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-tertiary: #8A8A8A;
            --border-color: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
            --shadow-lg: 0 8px 24px rgba(0,0,0,0.7);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            transition: background 0.3s ease, color 0.3s ease;
        }

        /* Particle Canvas */
        #particles-canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            opacity: 0.6;
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg-primary);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            background: rgba(var(--bg-primary-rgb, 255,255,255), 0.85);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        [data-theme="dark"] .navbar {
            background: rgba(18,18,18, 0.85);
        }

        .navbar.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            font-weight: 700;
            font-family: 'Space Grotesk', sans-serif;
            cursor: pointer;
        }

        .logo img {
            height: 40px;
            width: 40px;
            object-fit: contain;
        }

        .logo-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradientShift 3s ease infinite;
        }

        @keyframes gradientShift {
            0%, 100% { filter: hue-rotate(0deg); }
            50% { filter: hue-rotate(30deg); }
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-link {
            text-decoration: none;
            color: var(--text-secondary);
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
            cursor: pointer;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-primary);
            transition: width 0.3s ease;
        }

        .nav-link:hover {
            color: var(--cyan-primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-controls {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .icon-btn {
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background 0.3s ease;
            color: var(--text-secondary);
        }

        .icon-btn:hover {
            background: var(--bg-tertiary);
        }

        .lang-selector {
            position: relative;
        }

        .lang-dropdown {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 8px;
            min-width: 120px;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
        }

        .lang-dropdown.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .lang-option {
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .lang-option:hover {
            background: var(--bg-tertiary);
        }

        /* Page Sections */
        .page-section {
            display: none;
            min-height: 100vh;
            padding-top: 72px;
        }

        .page-section.active {
            display: block;
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            padding: 120px 24px 80px;
        }

        .hero-content {
            max-width: 1280px;
            width: 100%;
            margin: 0 auto;
            text-align: center;
            z-index: 2;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 100px;
            margin-bottom: 24px;
            animation: fadeInUp 0.8s ease;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--cyan-primary);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.2); }
        }

        .hero-title {
            font-size: clamp(2.5rem, 8vw, 5rem);
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 24px;
            font-family: 'Space Grotesk', sans-serif;
            animation: fadeInUp 0.8s ease 0.1s both;
        }

        .gradient-text {
            background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--magenta-primary) 50%, var(--cyan-primary) 100%);
            background-size: 200% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradientAnimation 3s linear infinite;
        }

        @keyframes gradientAnimation {
            0% { background-position: 0% 50%; }
            100% { background-position: 200% 50%; }
        }

        .hero-description {
            font-size: 1.25rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 auto 48px;
            line-height: 1.8;
            animation: fadeInUp 0.8s ease 0.2s both;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 0.8s ease 0.3s both;
        }

        .btn {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            box-shadow: 0 4px 16px rgba(0, 188, 212, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 188, 212, 0.4);
        }

        .btn-secondary {
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: 2px solid var(--border-color);
        }

        .btn-secondary:hover {
            background: var(--bg-tertiary);
            transform: translateY(-2px);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Services Section */
        .section {
            padding: 100px 24px;
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 64px;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            font-family: 'Space Grotesk', sans-serif;
        }

        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .services-grid {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .service-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--cyan-primary);
        }

        .service-icon {
            width: 64px;
            height: 64px;
            background: var(--gradient-primary);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: white;
            font-size: 28px;
        }

        .service-title {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .service-description {
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Service Detail Page */
        .service-detail-hero {
            background: var(--gradient-primary);
            color: white;
            padding: 120px 24px 80px;
            text-align: center;
        }

        .service-detail-content {
            max-width: 1000px;
            margin: -60px auto 100px;
            background: var(--bg-primary);
            border-radius: 24px;
            padding: 60px;
            box-shadow: var(--shadow-lg);
            position: relative;
            z-index: 10;
        }

        .service-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 32px;
            margin: 48px 0;
        }

        .service-feature {
            padding: 24px;
            background: var(--bg-secondary);
            border-radius: 12px;
            border-left: 4px solid var(--cyan-primary);
        }

        /* Features Section */
        .features {
            background: var(--bg-secondary);
        }

        .features-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
        }

        .feature-content h3 {
            font-size: 2rem;
            margin-bottom: 24px;
            font-weight: 600;
        }

        .feature-list {
            list-style: none;
        }

        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }

        .feature-check {
            width: 24px;
            height: 24px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .feature-text h4 {
            font-weight: 600;
            margin-bottom: 4px;
        }

        .feature-text p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .feature-visual {
            position: relative;
        }

        .feature-card {
            background: var(--bg-primary);
            border-radius: 16px;
            padding: 32px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
        }

        /* Stats */
        .stats-grid {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 32px;
        }

        .stat-card {
            text-align: center;
            padding: 32px;
            background: var(--bg-secondary);
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 8px;
        }

        .stat-label {
            color: var(--text-secondary);
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* Contact Form */
        .contact-section {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            padding: 100px 24px;
        }

        .contact-info {
            padding: 40px;
        }

        .contact-info h2 {
            font-size: 2.5rem;
            margin-bottom: 24px;
            font-weight: 700;
        }

        .contact-info p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .contact-details {
            list-style: none;
        }

        .contact-details li {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            color: var(--text-secondary);
        }

        .contact-details .material-icons {
            color: var(--cyan-primary);
        }

        .contact-form {
            background: var(--bg-secondary);
            padding: 48px;
            border-radius: 24px;
            box-shadow: var(--shadow-md);
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--text-primary);
        }

        .form-input,
        .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: inherit;
            transition: all 0.3s ease;
        }

        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--cyan-primary);
            box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .form-submit {
            width: 100%;
            padding: 16px 32px;
            background: var(--gradient-primary);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .form-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 188, 212, 0.4);
        }

        /* About Section */
        .about-hero {
            padding: 120px 24px 80px;
            text-align: center;
            background: var(--bg-secondary);
        }

        .about-content {
            max-width: 1000px;
            margin: 0 auto;
            padding: 80px 24px;
        }

        .about-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 48px;
            margin: 64px 0;
        }

        .about-card {
            text-align: center;
        }

        .about-card-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 24px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 36px;
        }

        /* CTA Section */
        .cta {
            background: var(--gradient-primary);
            color: white;
            text-align: center;
            border-radius: 24px;
            padding: 80px 40px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .cta h2 {
            font-size: 2.5rem;
            margin-bottom: 16px;
        }

        .cta p {
            font-size: 1.125rem;
            margin-bottom: 32px;
            opacity: 0.95;
        }

        .cta .btn {
            background: white;
            color: var(--cyan-dark);
        }

        .cta .btn:hover {
            background: var(--bg-secondary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.2);
        }

        /* Footer */
        .footer {
            background: var(--bg-tertiary);
            padding: 60px 24px 24px;
            margin-top: 100px;
        }

        .footer-content {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand h3 {
            font-size: 1.5rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .footer-links h4 {
            font-size: 0.875rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            color: var(--text-secondary);
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links a {
            color: var(--text-tertiary);
            text-decoration: none;
            display: block;
            padding: 4px 0;
            transition: color 0.3s ease;
            cursor: pointer;
        }

        .footer-links a:hover {
            color: var(--cyan-primary);
        }

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            text-align: center;
            color: var(--text-tertiary);
            font-size: 0.875rem;
        }

        /* Mobile Menu */
        .mobile-menu-toggle {
            display: none;
        }

        /* Success Message */
        .success-message {
            display: none;
            background: #4CAF50;
            color: white;
            padding: 16px;
            border-radius: 8px;
            margin-bottom: 24px;
            text-align: center;
        }

        .success-message.show {
            display: block;
        }

        /* Loading Animation */
        .loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-primary);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }

        .loader.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .loader-spinner {
            width: 60px;
            height: 60px;
            border: 4px solid var(--bg-tertiary);
            border-top: 4px solid var(--cyan-primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Responsive */
        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                left: -100%;
                top: 72px;
                flex-direction: column;
                background: var(--bg-primary);
                width: 100%;
                text-align: center;
                transition: left 0.3s ease;
                box-shadow: var(--shadow-lg);
                padding: 32px;
                border-top: 1px solid var(--border-color);
            }

            .nav-menu.active {
                left: 0;
            }

            .mobile-menu-toggle {
                display: block;
                background: none;
                border: none;
                font-size: 24px;
                cursor: pointer;
                color: var(--text-primary);
            }

            .features-container {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-title {
                font-size: 2.5rem;
            }

            .hero-description {
                font-size: 1.125rem;
            }

            .contact-section {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .service-detail-content {
                padding: 40px 24px;
            }
        }