.payment-method {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}
.payment-method h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
}
.sin-payment {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.sin-payment:hover {
    border-color: #3399cc;
    background-color: #f8f9fa;
}
.sin-payment input[type="radio"] {
    margin-right: 10px;
}
.sin-payment label {
    cursor: pointer;
    font-weight: 500;
    margin-bottom: 0;
    display: block;
    width: 100%;
}
.payment-box {
    margin-top: 10px;
    padding-left: 30px;
    font-size: 14px;
    color: #666;
}
#placeOrderBtn {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    background: #3399cc;
    border: none;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}
#placeOrderBtn:hover {
    background: #2288bb;
}