/* Snowfall Effect Styles */
#snow-toggle {
    transition: background 0.3s ease, transform 0.3s ease;
}

#snow-toggle.active {
    background: var(--accent-soft);
    border-color: var(--accent);
}

.snowflake {
    position: fixed;
    top: -10px;
    pointer-events: none;
    z-index: 9999;
    user-select: none;
    border-radius: 50%;
}

/* Light theme snowflakes */
.snowflake {
    background: #a0aec0;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.1);
}

/* Dark theme snowflakes */
.dark-theme .snowflake {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 4px rgba(255, 255, 255, 0.4);
}

/* CSS-only animation for low-end devices */
@keyframes fall-css {
    0% {
        transform: translateY(-10vh) translateX(0);
        opacity: 0.8;
    }
    100% {
        transform: translateY(105vh) translateX(20px);
        opacity: 0;
    }
}

.snowflake-css {
    animation: fall-css linear infinite;
}