 <style>
        html,
        body {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            background: linear-gradient(to bottom, #000000, #000000);
            font-family: Arial, sans-serif;
            position: relative;
        }

        .snowflake {
            position: fixed;
            top: -5%;
            color: white;
            font-size: 1rem;
            opacity: 0.9;
            animation: fall linear infinite;
            pointer-events: none;
        }

        @keyframes fall {
            0% {
                transform: translate(0, 0);
                opacity: 1;
            }
            50% {
                transform: translateX(var(--random-x)) translateY(50vh);
                opacity: 0.9;
            }
            100% {
                transform: translateX(calc(var(--random-x) * 2)) translateY(100vh);
                opacity: 0;
            }
        }

        .santa-container {
            position: absolute;
            width: 150px;
            height: 100px;
            top: 20%;
            left: -200px; /* Start off-screen */
            animation: santaFly 10s linear infinite;
            z-index: 1000;
        }

        @keyframes santaFly {
            0% {
                transform: translate(-200px, 0);
            }
            25% {
                transform: translate(25vw, 10vh) rotate(10deg);
            }
            50% {
                transform: translate(50vw, 0) rotate(-10deg);
            }
            75% {
                transform: translate(75vw, 5vh) rotate(10deg);
            }
            100% {
                transform: translate(110vw, 0);
            }
        }

        .santa {
            width: 100%;
            height: auto;
        }

        .card {
            position: absolute;
            bottom: -20px;
            right: -50px;
            background: rgba(255, 255, 255, 0.8);
            color: #000;
            font-size: 0.8rem;
            font-weight: bold;
            padding: 10px;
            border-radius: 5px;
            animation: floatCard 2s ease-in-out infinite alternate;
        }

        @keyframes floatCard {
            0% {
                transform: translateY(0);
            }
            100% {
                transform: translateY(-10px);
            }
        }
    </style>