* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        :root {
            --primary: #26C6DA;
            --primary-dark: #00ACC1;
            --secondary: #F57C00;
            --accent: #6A1B9A;
            --danger: #E53935;
            --dark: #3A3A3A;
            --dark-2: #616161;
            --light: #FAFAFA;
            --border: #E0E0E0;
            --text: #212121;
            --text-light: #757575;
            --white: #FFFFFF;
            --gradient: linear-gradient(135deg, #26C6DA 0%, #00ACC1 100%);
            --gradient-2: linear-gradient(135deg, #F57C00 0%, #EF6C00 100%);
            --gradient-3: linear-gradient(135deg, #6A1B9A 0%, #4A148C 100%);
            --shadow: 0 2px 4px rgba(0,0,0,0.14), 0 1px 2px rgba(0,0,0,0.12);
            --shadow-lg: 0 8px 16px rgba(0,0,0,0.14), 0 4px 8px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--white);
            color: var(--text);
            line-height: 1.5;
            letter-spacing: 0.00938em;
            overflow-x: hidden;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* ========== HEADER ========== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: var(--white);
            z-index: 1000;
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        header.scrolled {
            box-shadow: 0 4px 8px rgba(0,0,0,0.12);
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 64px;
            padding: 0 1.5rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.5rem;
            font-weight: 500;
            color: var(--dark);
            text-decoration: none;
            letter-spacing: 0;
        }

        .logo i {
            font-size: 1.75rem;
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2.5rem;
        }

        .nav-menu a {
            color: var(--text);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9375rem;
            transition: var(--transition);
            position: relative;
            padding: 0.5rem 0;
            opacity: 0.87;
        }

        .nav-menu a:hover {
            opacity: 1;
            color: var(--primary);
        }

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

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

        .nav-actions {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .btn {
            padding: 0.625rem 1.5rem;
            border-radius: 4px;
            font-weight: 500;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.0892857143em;
            text-transform: uppercase;
        }

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

        .btn-login:hover {
            background: rgba(38, 198, 218, 0.08);
        }

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

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

        /* ========== HERO SLIDER ========== */
        .hero {
            margin-top: 64px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #26C6DA 0%, #00ACC1 50%, #0097A7 100%);
        }

        .hero-slider {
            position: relative;
            min-height: 700px;
        }

        .hero-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            visibility: hidden;
            transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), visibility 1s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            padding: 4rem 0;
        }

        .hero-slide.active {
            opacity: 1;
            visibility: visible;
            position: relative;
        }

        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 5rem;
            align-items: center;
            width: 100%;
        }

        .hero-text h1 {
            font-size: clamp(2.5rem, 5vw, 3.75rem);
            font-weight: 300;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--white);
            letter-spacing: -0.00833em;
        }

        .hero-text .highlight {
            font-weight: 500;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary);
            padding: 0 0.5rem;
            border-radius: 4px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }

        .hero-text p {
            font-size: 1.25rem;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 2.5rem;
            line-height: 1.6;
            font-weight: 400;
            letter-spacing: 0.00735em;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-top: 3rem;
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
            transition: var(--transition);
        }

        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--secondary);
            display: block;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.0892857143em;
            margin-top: 0.5rem;
            font-weight: 500;
        }

        .hero-image {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .device-mockup {
            max-width: 500px;
            width: 100%;
            filter: drop-shadow(0 20px 40px rgba(0,0,0,0.15));
            animation: float 8s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { 
                transform: translateY(0px) scale(1);
            }
            50% { 
                transform: translateY(-15px) scale(1.02);
            }
        }

        .slider-controls {
            position: absolute;
            bottom: 3rem;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 1rem;
            z-index: 10;
        }

        .slider-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid var(--white);
        }

        .slider-dot.active {
            background: var(--white);
            transform: scale(1.3);
        }

        .slider-dot:hover {
            background: rgba(255, 255, 255, 0.8);
        }

        .hero-buttons {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

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

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline {
            background: transparent;
            color: var(--white);
            border: 2px solid var(--white);
        }

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

        /* ========== FEATURES ========== */
        .features {
            padding: 120px 0;
            background: var(--light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 5rem;
        }

        .section-tag {
            display: inline-block;
            padding: 0.5rem 1.25rem;
            background: rgba(38, 198, 218, 0.1);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.0892857143em;
            border-radius: 50px;
            margin-bottom: 1.5rem;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 400;
            color: var(--text);
            margin-bottom: 1.25rem;
            line-height: 1.2;
            letter-spacing: 0;
        }

        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-light);
            max-width: 720px;
            margin: 0 auto;
            line-height: 1.6;
            letter-spacing: 0.00735em;
            font-weight: 400;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2.5rem;
        }

        .feature-card {
            background: var(--white);
            padding: 2rem;
            border-radius: 8px;
            transition: var(--transition);
            box-shadow: 0 2px 4px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.15), 0 6px 10px rgba(0,0,0,0.1);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--white);
            margin-bottom: 1.5rem;
            box-shadow: 0 4px 8px rgba(38, 198, 218, 0.3);
        }

        .feature-card:nth-child(2) .feature-icon,
        .feature-card:nth-child(5) .feature-icon,
        .feature-card:nth-child(8) .feature-icon {
            background: var(--secondary);
            box-shadow: 0 4px 8px rgba(245, 124, 0, 0.3);
        }

        .feature-card:nth-child(3) .feature-icon,
        .feature-card:nth-child(6) .feature-icon,
        .feature-card:nth-child(9) .feature-icon {
            background: var(--accent);
            box-shadow: 0 4px 8px rgba(106, 27, 154, 0.3);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 500;
            margin-bottom: 1rem;
            color: var(--text);
            letter-spacing: 0.0125em;
        }

        .feature-card p {
            color: var(--text-light);
            line-height: 1.6;
            font-size: 0.9375rem;
            letter-spacing: 0.00735em;
            font-weight: 400;
        }

        /* ========== PRICING ========== */
        .pricing {
            padding: 120px 0;
            background: var(--white);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2.5rem;
            margin-top: 4rem;
        }

        .pricing-card {
            background: var(--white);
            padding: 2rem;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
            border-top: 4px solid var(--primary);
        }

        .pricing-card:nth-child(2) {
            border-top-color: var(--secondary);
        }

        .pricing-card:nth-child(3) {
            border-top-color: var(--accent);
        }

        .pricing-card.featured {
            transform: scale(1.05);
            box-shadow: 0 8px 16px rgba(0,0,0,0.15), 0 4px 8px rgba(0,0,0,0.1);
        }

        .pricing-badge {
            position: absolute;
            top: -12px;
            right: 2rem;
            background: var(--secondary);
            color: var(--white);
            padding: 0.5rem 1.25rem;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.0892857143em;
            box-shadow: var(--shadow);
        }

        .pricing-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.15), 0 6px 10px rgba(0,0,0,0.1);
        }

        .pricing-card.featured:hover {
            transform: scale(1.05) translateY(-8px);
            box-shadow: 0 16px 28px rgba(0,0,0,0.2), 0 8px 14px rgba(0,0,0,0.15);
        }

        .plan-name {
            font-size: 1.5rem;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.0892857143em;
        }

        .plan-price {
            font-size: 3rem;
            font-weight: 300;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .plan-price span {
            font-size: 1.25rem;
            color: var(--text-light);
            font-weight: 400;
        }

        .plan-description {
            color: var(--text-light);
            margin-bottom: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border);
            font-size: 1rem;
            line-height: 1.6;
        }

        .plan-features {
            list-style: none;
            margin-bottom: 2rem;
        }

        .plan-features li {
            padding: 0.75rem 0;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .plan-features li i {
            color: var(--secondary);
            font-size: 1.25rem;
        }

        .plan-features li.disabled {
            opacity: 0.4;
        }

        .plan-features li.disabled i {
            color: var(--text-light);
        }

        .btn-plan {
            width: 100%;
            justify-content: center;
            padding: 1rem;
            font-size: 1rem;
        }

        /* ========== CONTACT ========== */
        .contact {
            padding: 120px 0;
            background: var(--light);
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 5rem;
            align-items: center;
        }

        .contact-info h2 {
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            color: var(--dark);
        }

        .contact-info p {
            font-size: 1.2rem;
            color: var(--text-light);
            margin-bottom: 3rem;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .contact-icon {
            width: 50px;
            height: 50px;
            background: var(--primary);
            border-radius: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        .contact-item-content h4 {
            font-weight: 700;
            margin-bottom: 0.25rem;
            color: var(--dark);
        }

        .contact-item-content p {
            margin: 0;
            color: var(--text-light);
            font-size: 1rem;
        }

        .contact-form {
            background: var(--white);
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 1rem;
            border: none;
            border-bottom: 2px solid var(--border);
            border-radius: 4px 4px 0 0;
            font-size: 1rem;
            transition: var(--transition);
            font-family: inherit;
            background: var(--light);
        }

        .form-control:focus {
            outline: none;
            border-bottom-color: var(--primary);
            background: var(--white);
            box-shadow: 0 1px 0 0 var(--primary);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 150px;
        }

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

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 4rem;
            margin-bottom: 4rem;
        }

        .footer-brand h3 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--primary);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .social-links {
            display: flex;
            gap: 1rem;
        }

        .social-links a {
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            transition: var(--transition);
            text-decoration: none;
        }

        .social-links a:hover {
            background: var(--primary);
        }

        .footer-col h4 {
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--white);
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            margin-bottom: 1rem;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--white);
            padding-left: 0.5rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== MOBILE MENU ========== */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 0.4rem;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content,
            .contact-content {
                grid-template-columns: 1fr;
                gap: 3rem;
            }

            .hero-slider {
                min-height: auto;
                padding: 4rem 0;
            }

            .hero-image {
                order: -1;
            }

            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                padding: 2rem;
                gap: 1rem;
                box-shadow: var(--shadow);
                transition: var(--transition);
            }

            .nav-menu.active {
                left: 0;
            }

            .nav-actions {
                flex-direction: column;
                width: 100%;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                grid-template-columns: 1fr;
            }

            .pricing-card.featured {
                transform: scale(1);
            }

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

            .hero-buttons {
                flex-direction: column;
            }

            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.9);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .scale-in {
            animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .feature-card, .pricing-card {
            animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) backwards;
        }

        .feature-card:nth-child(1), .pricing-card:nth-child(1) { animation-delay: 0.05s; }
        .feature-card:nth-child(2), .pricing-card:nth-child(2) { animation-delay: 0.1s; }
        .feature-card:nth-child(3), .pricing-card:nth-child(3) { animation-delay: 0.15s; }
        .feature-card:nth-child(4) { animation-delay: 0.2s; }
        .feature-card:nth-child(5) { animation-delay: 0.25s; }
        .feature-card:nth-child(6) { animation-delay: 0.3s; }
        .feature-card:nth-child(7) { animation-delay: 0.35s; }
        .feature-card:nth-child(8) { animation-delay: 0.4s; }
        .feature-card:nth-child(9) { animation-delay: 0.45s; }
        .feature-card:nth-child(10) { animation-delay: 0.5s; }