.popup-animation {
    animation: fadeIn 0.3s ease-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.input-glow:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}