.message, .message2 {
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.5s ease;
    position: fixed;
    top: 20px;
    right: 20px;
    color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    z-index: 50;
}
.message { background-color: #EF4444; }
.message2 { background-color: #3CB371; }
.message.show, .message2.show {
    opacity: 1;
    transform: translateY(0);
}

.sidebar {
    transition: transform 0.3s ease-in-out;
}
.sidebar.open {
    transform: translateX(0);
}

@keyframes fall {
    0%   { transform: translateY(-10vh) translateX(0); opacity: 0; }
    10%  { opacity: 1; }
    100% { transform: translateY(110vh) translateX(var(--swayX)); opacity: 0.9; }
}

#snow {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    overflow: hidden;
}

.snowflake {
    position: absolute;
    top: -5vh;
    color: white;
    will-change: transform, opacity;
    animation: fall var(--dur) linear infinite;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    user-select: none;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    .snowflake { animation: none !important; opacity: 1 !important; }
}