/* ----------------------- Stripe checkout modal overlay --------------------------- */
        .modal {
            display: none; 
            position: fixed; 
            z-index: 1000; 
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            display: none;
            justify-content: center;
            align-items: center;
            background-color: rgba(0,0,0,0.5); 
        }
        .modal-content {
            background-color: #fff;
            padding: 20px;
            border: 1px solid #888;
            width: 400px;
            border-radius: 5px;
            position: relative;
        }
        .close {
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
            position: absolute;
            top: 10px;
            right: 15px;
            cursor: pointer;
        }
        .close:hover,
        .close:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
        }
        #checkout {
            margin-top: 20px;
        }