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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            overflow-x: hidden;
        }

        .container {
            max-width: 800px;
            width: 90%;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .logo {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(45deg, #fff, #e0e7ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: pulse 2s ease-in-out infinite alternate;
        }

        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 3rem;
            font-weight: 300;
            letter-spacing: 0.5px;
        }

        .demo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }

        .demo-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            padding: 2rem;
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .demo-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transition: left 0.6s;
        }

        .demo-card:hover::before {
            left: 100%;
        }

        .demo-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .demo-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            display: block;
        }

        .demo-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .demo-description {
            font-size: 0.9rem;
            opacity: 0.8;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        .demo-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.2);
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            color: white;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .demo-link:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: scale(1.05);
        }

        .floating-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 1;
        }

        .shape {
            position: absolute;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
        }

        .shape:nth-child(1) {
            width: 80px;
            height: 80px;
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .shape:nth-child(2) {
            width: 120px;
            height: 120px;
            top: 60%;
            right: 10%;
            animation-delay: 2s;
        }

        .shape:nth-child(3) {
            width: 60px;
            height: 60px;
            bottom: 20%;
            left: 20%;
            animation-delay: 4s;
        }

        .footer {
            margin-top: 3rem;
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .demo-credentials {
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }

        .demo-credentials small {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.8rem;
            font-family: 'Courier New', monospace;
        }

        @keyframes pulse {
            0% {
                transform: scale(1);
            }
            100% {
                transform: scale(1.05);
            }
        }

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

        @media (max-width: 768px) {
            .logo {
                font-size: 2.5rem;
            }
            
            .demo-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            
            .demo-card {
                padding: 1.5rem;
            }
        }