/**
 * Snowflake Animation Styles
 * Shared across index.html, viewer.html, and wizard.html
 */

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

.snowflake {
    position: absolute;
    top: -20px;
    color: white;
    opacity: 0.6;
    animation: snowfall linear infinite;
}

@keyframes snowfall {
    0% {
        transform: translateY(-20px) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}