:root {
            /* Main Colors */
            --bg-primary: #1F2228;
            --bg-secondary: #222f36;
            --bg-transparent: rgba(31, 34, 40, 0.5);
            
            /* Text Colors */
            --text-primary: #e0e0e0;
            --text-secondary: #b0b0b0;
            --text-dark: #1F2228;
            
            /* Accent Colors */
            --accent-primary: #23A9D0;
            --accent-primary-transparent: rgba(35, 169, 208, 0.8);
            --accent-hover: #1E8FB8;
            
            /* Border Colors */
            --border-light: rgba(255, 255, 255, 0.1);
            --border-accent: rgba(35, 169, 208, 0.3);
            
            /* Shadow Colors */
            --shadow-primary: rgba(0, 0, 0, 0.5);
            --shadow-accent: rgba(35, 169, 208, 0.3);
            
            /* UI Element Colors */
            --phone-border: #161616;
            --star-color: #FFD700;
            --star-glow: rgba(255, 215, 0, 0.5);
            --white: #ffffff;
            --black: #000000;
            --overlay-dark: rgba(0, 0, 0, 0.4);
            --overlay-light: rgba(255, 255, 255, 0.1);
            --overlay-accent: rgba(255, 255, 255, 0.2);
            
            /* Effects */
            --blur-radius: 8px;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-primary);
            min-height: 100vh;
        }

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

        /* Language Switcher */
        .language-switcher {
            position: fixed;
            top: 45px;
            right: 20px;
            z-index: 1001;
            background: var(--bg-transparent);
            backdrop-filter: blur(var(--blur-radius));
            border-radius: 25px;
            padding: 8px;
            border: 1px solid var(--border-light);
            display: flex;
            gap: 5px;
        }

        .lang-btn {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            padding: 8px 12px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .lang-btn.active {
            background: var(--accent-primary);
            color: var(--text-dark);
        }

        .lang-btn:hover:not(.active) {
            background: var(--overlay-light);
            color: var(--text-primary);
        }

        /* Header */
        header {
            background: var(--bg-transparent);
            backdrop-filter: blur(var(--blur-radius));
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px var(--shadow-primary);
            border-bottom: 1px solid var(--border-light);
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-primary);
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--accent-primary);
        }

        /* Hero Section */
        .hero {
            padding: 100px 0 60px;
            color: white;
            background: url('hero-background.jpg') no-repeat center center;
            background-size: cover;
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--overlay-dark);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .hero-content {
            text-align: left;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            line-height: 1.1;
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            max-width: 500px;
            line-height: 1.6;
        }

        .hero-screenshot {
            text-align: center;
        }

        .hero-screenshot img {
            max-width: 100%;
            max-height: 60vh;
            height: auto;
            border-radius: 20px;
            box-shadow: 0 20px 40px var(--shadow-primary);
            border: 8px solid var(--phone-border);
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            padding: 1rem 2rem;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--accent-primary-transparent);
            backdrop-filter: blur(var(--blur-radius));
            color: var(--text-primary);
            border: 1px solid var(--accent-primary);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 25px var(--shadow-accent);
        }

        .btn-secondary {
            background: var(--border-light);
            color: var(--white);
            backdrop-filter: blur(var(--blur-radius));
            border: 1px solid var(--border-light);
        }

        .btn-secondary:hover {
            background: var(--overlay-accent);
            transform: translateY(-2px);
        }

        /* Achievement KPI */
        .achievement-kpi {
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-transparent);
            backdrop-filter: blur(var(--blur-radius));
            border: 1px solid var(--border-light);
            border-radius: 15px;
            padding: 2rem;
            margin: 2rem auto 3rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            max-width: 400px;
        }

        .achievement-kpi:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px var(--shadow-primary);
            border-color: var(--border-accent);
        }

        .achievement-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            text-align: center;
        }

        .achievement-rank {
            font-size: 4.5rem;
            font-weight: 800;
            color: var(--accent-primary);
            text-shadow: 0 0 30px var(--accent-primary);
            line-height: 1;
        }

        .achievement-title {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
        }

        .achievement-title-main {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--accent-primary);
            line-height: 1.2;
        }

        .achievement-title-sub {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .achievement-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Features Section */
        .features {
            padding: 80px 0;
            background: var(--bg-primary);
        }

        .faq {
            padding: 80px 0;
            background: var(--bg-primary);
        }

        .faq-list {
            display: grid;
            gap: 1rem;
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            padding: 1.5rem 2rem;
            border: 1px solid var(--border-light);
            border-radius: 16px;
            background: var(--bg-secondary);
        }

        .faq-item h3 {
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            font-size: 1.2rem;
        }

        .faq-item p {
            color: var(--text-secondary);
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 3rem;
            color: var(--text-primary);
        }

        .section-subtitle {
            text-align: center;
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
            font-weight: 400;
            opacity: 0.9;
        }

        .testimonials .section-subtitle {
            margin-bottom: 1.5rem;
            font-size: 1rem;
            color: var(--text-primary);
            opacity: 0.8;
            font-style: italic;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .feature-card {
            background: var(--bg-secondary);
            padding: 2rem;
            border-radius: 20px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid var(--border-light);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px var(--shadow-primary);
            border-color: var(--border-accent);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: var(--accent-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            color: var(--white);
        }

        .feature-icon svg {
            width: 32px;
            height: 32px;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .feature-card p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* App Preview Section */
        .app-preview {
            padding: 80px 0;
            background: var(--bg-secondary);
            color: white;
        }

        .preview-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .preview-text h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .preview-text p {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .app-mockup {
            text-align: center;
            position: relative;
            height: 700px;
        }

        .phone-mockup {
            width: 300px;
            height: 600px;
            background: var(--phone-border);
            border-radius: 30px;
            margin: 0 auto;
            position: relative;
            box-shadow: 0 20px 40px var(--shadow-primary);
        }

        .phone-screen {
            width: 280px;
            height: 580px;
            background: var(--bg-primary);
            border-radius: 25px;
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.2rem;
            font-weight: 600;
        }

        .phone-screen-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 20px;
            border: 4px solid var(--phone-border);
        }

        .screenshot-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            pointer-events: none;
        }

        .screenshot-slide.active {
            opacity: 1;
            pointer-events: auto;
        }

        .screenshot-title {
            text-align: center;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--accent-primary);
            margin-bottom: 0.5rem;
        }

        /* Testimonials Section */
        .testimonials {
            padding: 60px 0;
            background: url('background-horse-shoe.jpg') no-repeat center center;
            background-size: cover;
            color: white;
            position: relative;
        }

        .testimonials::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-transparent);
            z-index: 1;
        }

        .testimonials .container {
            position: relative;
            z-index: 2;
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .testimonial-card {
            background: var(--bg-transparent);
            backdrop-filter: blur(var(--blur-radius));
            padding: 1.5rem;
            border-radius: 15px;
            border: 1px solid var(--border-light);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px var(--shadow-primary);
            border-color: var(--border-accent);
        }

        .testimonial-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--accent-primary);
            margin-bottom: 0.5rem;
        }

        .stars {
            color: var(--white);
            font-size: 1.2rem;
            margin-bottom: 0.75rem;
        }

        .testimonial-text {
            font-size: 1rem;
            line-height: 1.5;
            margin-bottom: 1rem;
            color: var(--text-primary);
            font-style: italic;
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* More Apps Section */
        .more-apps {
            padding: 60px 0;
            background: var(--bg-primary);
            text-align: center;
        }

        .more-apps-content {
            max-width: 500px;
            margin: 0 auto;
        }

        .more-apps h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .more-apps p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        /* Download Section */
        .download {
            padding: 80px 0;
            background: var(--bg-primary);
            text-align: center;
        }

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

        .download p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        footer {
            background: var(--bg-secondary);
            color: var(--white);
            padding: 2rem 0;
            text-align: center;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-links {
            display: flex;
            gap: 2rem;
            list-style: none;
            flex-wrap: wrap;
            justify-content: center;
        }

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

        .footer-links a:hover {
            color: white;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

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

            .hero-content {
                text-align: center;
            }

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

            .achievement-kpi {
                padding: 1.5rem;
                margin: 1.5rem auto 2rem;
            }

            .achievement-rank {
                font-size: 3.5rem;
            }

            .achievement-title {
                font-size: 1.1rem;
            }

            .achievement-subtitle {
                font-size: 0.9rem;
            }

            .preview-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

            .phone-mockup {
                width: 250px;
                height: 500px;
            }

            .phone-screen {
                width: 230px;
                height: 480px;
            }

            .footer-content {
                flex-direction: column;
                text-align: center;
                gap: 1.5rem;
            }

            .footer-links {
                gap: 1rem;
                flex-direction: column;
                align-items: center;
            }

            .language-switcher {
                right: 10px;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }

            .footer-content {
                gap: 1rem;
            }

            .footer-links {
                gap: 0.75rem;
            }

            .footer-links a {
                font-size: 0.9rem;
            }
        }