body{background:#f5f6fa;margin:0;font-family:sans-serif}.container{padding:20px}.title{text-align:center}.card{background:#fff;border-radius:12px;flex-direction:column;gap:12px;padding:20px;display:flex;box-shadow:0 5px 15px #0000001a}input,select{border:1px solid #ccc;border-radius:8px;padding:12px;font-size:16px}.btn{color:#fff;background:#0984e3;border:none;border-radius:8px;padding:12px;font-size:16px}.error{color:#fff;background:#ff7675;border-radius:8px;padding:10px;font-size:14px}.product-card{background:#fff;border-radius:12px;flex-direction:column;gap:10px;margin-bottom:15px;padding:15px;display:flex;box-shadow:0 4px 10px #0000001a}.product-card h3{margin:0}select{border:1px solid #ccc;border-radius:8px;padding:10px}.cart-item{background:#f1f2f6;border-radius:6px;margin-bottom:5px;padding:8px}.btn-checkout{color:#fff;background:#0984e3;border:none;border-radius:12px;width:100%;margin-top:15px;padding:15px;font-size:18px}.product-card h3{margin:0;font-size:18px}.price{color:#e17055;font-size:18px;font-weight:700}.btn-add{color:#fff;background:#00b894;border:none;border-radius:10px;padding:12px;font-size:16px}.cart-title{margin-top:20px}.cart-item{background:#f1f2f6;border-radius:10px;justify-content:space-between;margin-bottom:8px;padding:10px;display:flex}.cart-right{text-align:right}.cart-total{color:#0984e3;font-weight:700}.grand-total{text-align:right;margin-top:10px;font-size:20px;font-weight:700}.qty-control{align-items:center;gap:8px;display:flex}.qty-control button{color:#fff;background:#0984e3;border:none;border-radius:6px;width:28px;height:28px}.btn-remove{color:#fff;background:#d63031;border:none;border-radius:6px;margin-top:5px;padding:5px 8px}.student-card{background:#f1f9ff}.info-row{justify-content:space-between;margin-top:5px;display:flex}.checkout-item{border-bottom:1px solid #eee;justify-content:space-between;padding:10px 0;display:flex}.checkout-item:last-child{border-bottom:none}.right{text-align:right}.item-total{color:#0984e3;font-weight:700}.total-box{text-align:right;margin-top:10px;margin-bottom:15px;font-size:20px;font-weight:700}.btn-confirm{color:#fff;background:#00b894;border:none;border-radius:12px;width:100%;padding:15px;font-size:18px}.btn-back{color:#fff;background:#636e72;border:none;border-radius:10px;margin-bottom:12px;padding:10px 16px;font-size:15px}.btn-back:active{transform:scale(.97)}.success-card{text-align:center;background:#dff9fb;border-radius:16px;margin-bottom:15px;padding:20px}.success-title{color:#00b894;margin:0}.success-sub{color:#555;font-size:14px}.order-id-box{background:#fff;border-radius:10px;margin-top:10px;padding:10px;font-size:18px;display:inline-block}.btn-home{color:#fff;background:#0984e3;border:none;border-radius:12px;width:100%;margin-top:15px;padding:15px;font-size:18px}.aaaaa{position:absolute;left:-9999px}