.container{width:100%;max-width:400px;margin:auto;text-align:center}.actions button{margin:10px;padding:8px 16px;background-color:#007bff;color:#fff;border:none;border-radius:5px}.actions button:hover{background-color:#0056b3}.offer-item{padding:10px;margin:5px 0;cursor:pointer;border:1px solid #ccc;border-radius:5px}.offer-item.selected{background-color:#007bff;color:#fff}input{width:calc(100% - 20px);padding:8px 10px;margin:10px 0;border:1px solid #ccc;border-radius:5px}.offer-item{padding:10px;margin:5px 0;border:1px solid #ccc;border-radius:5px;cursor:pointer;transition:background-color .3s,color .3s}.offer-item.redeemed{color:#aaa;background-color:#f3f3f3;cursor:not-allowed;border-color:#ddd}.offer-item.selected{background-color:#007bff;color:#fff;border-color:#0056b3}.card{max-width:600px;margin-top:20px}.list-group-item{background-color:#f8f9fa;border:none}.card-header{background-color:#007bff;color:#fff}.alert{color:#fff;padding:10px;margin-top:10px;border-radius:5px;text-align:center;width:100%}.alert-success{background-color:#28a745}.alert-danger{background-color:#dc3545}