.cr-container {
    max-width: 360px;
    padding: 24px;
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    text-align: center;
    font-family: Inter, sans-serif;
}

.cr-button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

.cr-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.cr-coupon {
    margin-top: 20px;
    padding: 12px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    background: #f3f4f6;
    border-radius: 8px;
}

.cr-message {
    margin-top: 12px;
    font-size: 14px;
}

.cr-error {
    color: #dc2626;
}

@media (max-width: 480px) {
    .cr-container {
        width: 100%;
    }
}