Button card doesn't respond to entity value

my first time trying to create button-cards. In this card the background and icon should change color based on the value. current value is 66 but the card doesn’t seem to respond. not sure what I’m missing.

              - type: custom:button-card
                entity: 'sensor.thermostat_ground_indoor_temp'
                icon: 'mdi:fan'
                aspect_ratio: 1.2/1
                name: therm buttn
                title: my title
                show_units: true
                show_state: true
                styles:
                  card:
                    - filter: opacity(90%)
                    - height: 100px
                  name:
                    - font-size: 12px
                    - color: white
                state:
                  - value: 60
                    opertor: '>='
                    styles:
                      card:
                        - background-color: red
                        - filter: opacity(100%)
                        - height: 100px
                      icon:
                        - color: green
                      name:
                        - color: white
                      state:
                        - color: black
                  - value: 50
                    opertor: '>='
                    styles:
                      card:
                        - background-color: blue
                        - filter: opacity(100%)
                        - height: 100px
                      icon:
                        - color: white
                      name:
                        - color: white
                      state:
                        - color: black

opertor: should be operator. That the first thing I noticed.