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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background-color: #ffffff;
            color: #000000;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow-x: hidden;
        }

        .container {
            text-align: center;
            padding: 2rem;
            max-width: 600px;
            width: 100%;
            animation: fadeInUp 0.8s ease-out;
        }

        .logo {
            margin-bottom: 3rem;
            animation: logoFloat 3s ease-in-out infinite;
        }
        .logo-image {
            
            max-width: clamp(200px, 50vw, 400px);
            height: auto;
            display: block;
            margin: 0 auto;
            filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.1));
            transition: all 0.3s ease;
        }


        .tagline {
            margin-bottom: 1rem;
        }

        .tagline-main {
            font-size: clamp(1.25rem, 4vw, 1.5rem);
            font-weight: 600;
            color: #000000;
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }

        .tagline-sub {
            font-size: clamp(1rem, 3vw, 1.125rem);
            color: #666666;
            font-weight: 400;
            line-height: 1.4;
            margin-bottom: 3rem;
        }

        .download-section {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem 1.5rem;
            background-color: #000000;
            color: #ffffff;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        .download-btn:hover {
            background-color: #F44336;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(244, 67, 54, 0.3);
        }

        .download-btn:active {
            transform: translateY(0);
        }

        .download-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .download-btn:hover::before {
            left: 100%;
        }

        .store-icon {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .floating-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
            overflow: hidden;
        }

        .floating-dot {
            position: absolute;
            width: 4px;
            height: 4px;
            background-color: #F44336;
            border-radius: 50%;
            opacity: 0.3;
            animation: float 6s ease-in-out infinite;
        }

        .floating-dot:nth-child(1) {
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-dot:nth-child(2) {
            top: 60%;
            right: 15%;
            animation-delay: 2s;
        }

        .floating-dot:nth-child(3) {
            bottom: 30%;
            left: 20%;
            animation-delay: 4s;
        }

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

        @keyframes logoFloat {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.1);
            }
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px) rotate(0deg);
                opacity: 0.3;
            }
            50% {
                transform: translateY(-20px) rotate(180deg);
                opacity: 0.6;
            }
        }

        /* Mobile-first responsive design */
        @media (max-width: 480px) {
            .container {
                padding: 1.5rem;
            }
            
            .logo {
                margin-bottom: 5rem;
            }
            
            .tagline-sub {
                margin-bottom: 3rem;
            }
            
            .download-section {
                margin-top: 8rem;
                flex-direction: column;
                gap: 1rem;
            }
            
            .download-btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }

        @media (min-width: 768px) {
            .container {
                padding: 3rem;
            }
            
            .logo {
                margin-bottom: 4rem;
            }
        }

        /* Retina display optimization */
        @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 2dppx) {
            .logo-text {
                -webkit-font-smoothing: antialiased;
                -moz-osx-font-smoothing: grayscale;
            }
        }

        /* Reduced motion for accessibility */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }