@media (min-width:768px){.container{flex-direction:row}}.left-column,.right-column{padding:30px;flex:1}.left-column{border-right:1px solid #e5e7eb}@media (max-width:767px){.left-column{border-right:none;border-bottom:1px solid #e5e7eb}}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#374151}.form-group input,.form-group textarea{width:100%;padding:12px;border:1px solid #d1d5db;border-radius:8px;font-size:1rem;color:#374151;box-sizing:border-box;transition:border-color 0.2s,box-shadow 0.2s}.form-group input:focus,.form-group textarea:focus{border-color:#6366f1;box-shadow:0 0 0 3px rgb(99 102 241 / .2);outline:none}.StripeElement{padding:12px;border:1px solid #d1d5db;border-radius:8px;background-color:#fff;box-shadow:inset 0 1px 2px rgb(0 0 0 / .05);transition:border-color 0.2s,box-shadow 0.2s}.StripeElement--focus{border-color:#6366f1;box-shadow:0 0 0 3px rgb(99 102 241 / .2)}.StripeElement--invalid{border-color:#ef4444}.StripeElement--webkit-autofill{background-color:#fefde5!important}.submit-button{width:100%;padding:14px;background-color:#6366f1;color:#fff;border:none;border-radius:8px;font-size:1.125rem;font-weight:600;cursor:pointer;transition:background-color 0.2s,transform 0.2s;box-shadow:0 4px 10px rgb(99 102 241 / .3)}.submit-button:hover{background-color:#4f46e5;transform:translateY(-2px)}.submit-button:disabled{background-color:#a7a7a7;cursor:not-allowed;box-shadow:none}.error-message{color:#ef4444;margin-top:10px;font-size:.875rem}.success-message{color:#22c55e;margin-top:10px;font-size:.875rem}.product-list{border-top:1px solid #e5e7eb;padding-top:20px;margin-top:20px}.product-item{display:flex;align-items:center;margin-bottom:15px;background-color:#f9fafb;padding:10px;border-radius:8px}.product-item img{width:60px;height:60px;object-fit:cover;border-radius:6px;margin-right:15px}.product-details{flex-grow:1}.product-details h3{font-weight:600;color:#374151;font-size:1.1rem;margin:0}.product-details p{color:#6b7280;font-size:.9rem;margin:5px 0 0}.product-price{font-weight:700;color:#1f2937;font-size:1.1rem}.total-section{border-top:2px solid #e5e7eb;padding-top:20px;margin-top:20px;text-align:right}.total-section p{font-size:1.25rem;font-weight:700;color:#1f2937;margin:0}.loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgb(255 255 255 / .7);display:flex;justify-content:center;align-items:center;z-index:9999;visibility:hidden;opacity:0;transition:visibility 0s,opacity 0.3s linear}.loading-overlay.visible{visibility:visible;opacity:1}.spinner{border:4px solid rgb(0 0 0 / .1);border-left-color:#6366f1;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}