body {
    background-color: #191c29;
    color: #fff;
}

.btn-primary {
    background-color: #dc3545;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #b92c3a;
}

.btn-primary:disabled {
    background-color: #85888d;
}

.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.animate-fadeIn {
    animation: fadeIn 0.3s ease-out;
}