.register-btn {
    margin-top: 20px;
    background: var(--green);
    color: white;
    border: none;
    padding: 12px 16px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    width: 100%;
    box-shadow: var(--shadow);
    transition: 0.2s ease;
}

.register-btn:hover {
    background: var(--green-dark);
    transform: translateY(-2px);
}