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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #fff;
        }

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

        /* Header */
        header {
            padding: 20px 0;
            border-bottom: 1px solid #eee;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: bold;
            color: #2c3e50;
        }

        .logo img {
            height: 60px;  /* Scaled to match text height */
            width: auto;
            margin-right: 8px;
        }

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

        .nav-links a {
            text-decoration: none;
            color: #666;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #3498db;
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 60px 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        .hero h1 {
            font-size: 48px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero p {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.9;
        }

        .download-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 30px;
            background: #fff;
            color: #333;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: transform 0.2s, box-shadow 0.2s;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.15);
        }

        .btn-primary {
            background: #3498db;
            color: white;
        }

        /* CSS Icons */
        .icon {
            width: 20px;
            height: 20px;
            display: inline-block;
            position: relative;
        }

        .icon-mobile::before {
            content: '';
            position: absolute;
            width: 12px;
            height: 18px;
            border: 2px solid currentColor;
            border-radius: 3px;
            top: 1px;
            left: 4px;
        }

        .icon-mobile::after {
            content: '';
            position: absolute;
            width: 6px;
            height: 1px;
            background: currentColor;
            border-radius: 1px;
            top: 16px;
            left: 7px;
        }

        .icon-android::before {
            content: '';
            position: absolute;
            width: 16px;
            height: 12px;
            background: currentColor;
            border-radius: 8px 8px 0 0;
            top: 4px;
            left: 2px;
        }

        .icon-android::after {
            content: '';
            position: absolute;
            width: 2px;
            height: 4px;
            background: currentColor;
            border-radius: 1px;
            top: 1px;
            left: 6px;
            box-shadow: 6px 0 0 currentColor;
        }

        /* Video Section */
        .video-section {
            padding: 80px 0;
            background: #fff;
        }

        .video-section h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 20px;
            color: #2c3e50;
        }

        .video-section p {
            text-align: center;
            font-size: 18px;
            margin-bottom: 50px;
            color: #666;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .video-container {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .video-container video {
            width: 100%;
            height: auto;
            display: block;
        }

        .video-placeholder {
            width: 100%;
            height: 450px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .video-placeholder h3 {
            font-size: 24px;
            margin-bottom: 15px;
        }

        .video-placeholder p {
            font-size: 16px;
            opacity: 0.9;
            margin-bottom: 0;
        }

        .play-button {
            width: 80px;
            height: 80px;
            background: rgba(255,255,255,0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            cursor: pointer;
            transition: background 0.3s;
        }

        .play-button:hover {
            background: rgba(255,255,255,0.3);
        }

        .play-button::before {
            content: '';
            width: 0;
            height: 0;
            border-left: 25px solid white;
            border-top: 15px solid transparent;
            border-bottom: 15px solid transparent;
            margin-left: 5px;
        }

        /* Features */
        .features {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .features h2 {
            text-align: center;
            font-size: 36px;
            margin-bottom: 60px;
            color: #2c3e50;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }

        .feature {
            text-align: center;
            padding: 30px;
            background: white;
            border-radius: 12px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: #3498db;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 16px;
            font-weight: bold;
            text-align: center;
            line-height: 1.2;
        }

        .feature h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: #2c3e50;
        }

        .feature p {
            color: #666;
        }

        /* CTA */
        .cta {
            padding: 80px 0;
            text-align: center;
            background: #2c3e50;
            color: white;
        }

        .cta h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }

        .cta p {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        /* Footer */
        footer {
            padding: 40px 0;
            background: #34495e;
            color: white;
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: white;
            text-decoration: none;
            transition: opacity 0.3s;
        }

        .footer-links a:hover {
            opacity: 0.7;
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            nav {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }

            .nav-links {
                gap: 20px;
            }

            .hero h1 {
                font-size: 36px;
            }

            .hero p {
                font-size: 18px;
            }

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

            .features h2,
            .cta h2 {
                font-size: 28px;
            }

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

        @media (max-width: 480px) {
            nav {
                align-items: center;
                text-align: center;
            }

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