/* Snow Effect */
.snowflake {
    position: fixed;
    top: -10px;
    color: #fff;
    font-size: 1em;
    font-family: Arial, sans-serif;
    text-shadow: 0 0 5px #000;
    user-select: none;
    z-index: 9999;
    pointer-events: none;
    animation-name: snowflakes-fall, snowflakes-shake;
    animation-duration: 10s, 3s;
    animation-timing-function: linear, ease-in-out;
    animation-iteration-count: infinite, infinite;
    animation-play-state: running, running;
    opacity: 0.6;
}

@keyframes snowflakes-fall {
    0% { top: -10%; }
    100% { top: 100%; }
}

@keyframes snowflakes-shake {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(80px); }
}