.register-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    max-width: 400px;
    width: 100%;
}
.btn-register {
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    color: white;
    font-weight: 600;
    border: none;
}
.btn-register:hover {
    background: linear-gradient(135deg, #4f46e5, #4338ca);
}