{
    "schema_version": 4,
    "catalog_version": 9,
    "sections": [
        {
            "id": "measurements_power",
            "title": {
                "en": "Measurements & Battery"
            },
            "sort_order": 5,
            "slots": [
                {
                    "id": "total_weight_g",
                    "title": {
                        "en": "Total Measured Weight"
                    },
                    "input": "number",
                    "unit": "g",
                    "value_type": "measured_weight",
                    "notes": "User-entered measured car weight overrides calculated estimates when available."
                },
                {
                    "id": "battery_type",
                    "title": {
                        "en": "Battery Type"
                    },
                    "input": "choice",
                    "options": [
                        "alkaline",
                        "nimh",
                        "nimh_high_drain",
                        "unknown"
                    ]
                },
                {
                    "id": "battery_weight_g",
                    "title": {
                        "en": "Battery Weight"
                    },
                    "input": "number",
                    "unit": "g"
                }
            ]
        },
        {
            "id": "drivetrain",
            "title": {
                "en": "Drivetrain"
            },
            "sort_order": 10,
            "slots": [
                {
                    "id": "chassis",
                    "title": {
                        "en": "Chassis"
                    },
                    "input": "option",
                    "required": true,
                    "value_type": "chassis_id"
                },
                {
                    "id": "motor",
                    "title": {
                        "en": "Motor"
                    },
                    "category": "motor",
                    "input": "picker_with_custom",
                    "required": true
                },
                {
                    "id": "motor_behavior_class",
                    "title": {
                        "en": "Motor Behavior"
                    },
                    "input": "choice",
                    "options": [
                        "stock",
                        "torque",
                        "balanced",
                        "high_speed",
                        "sprint",
                        "unknown"
                    ],
                    "notes": "Fallback behavior class used when exact motor specs are unknown."
                },
                {
                    "id": "gear_ratio",
                    "title": {
                        "en": "Gear Ratio"
                    },
                    "category": "gear_ratio",
                    "input": "picker_with_custom",
                    "required": true
                },
                {
                    "id": "bearings",
                    "title": {
                        "en": "Bearings"
                    },
                    "input": "choice",
                    "options": [
                        "plastic",
                        "pom",
                        "metal_bushing",
                        "ball_bearing",
                        "unknown"
                    ]
                }
            ]
        },
        {
            "id": "tires_wheels",
            "title": {
                "en": "Tires & Wheels"
            },
            "sort_order": 20,
            "slots": [
                {
                    "id": "front_tire_diameter",
                    "title": {
                        "en": "Front Diameter"
                    },
                    "input": "number",
                    "unit": "mm",
                    "required": true,
                    "value_type": "diameter",
                    "presets": [
                        24,
                        26,
                        28,
                        31,
                        32
                    ]
                },
                {
                    "id": "rear_tire_diameter",
                    "title": {
                        "en": "Rear Diameter"
                    },
                    "input": "number",
                    "unit": "mm",
                    "required": true,
                    "value_type": "diameter",
                    "presets": [
                        24,
                        26,
                        28,
                        31,
                        32
                    ]
                },
                {
                    "id": "front_tire_profile",
                    "title": {
                        "en": "Front Tire Profile"
                    },
                    "input": "choice",
                    "options": [
                        "slick",
                        "low_profile",
                        "arched_barrel",
                        "offset_tread",
                        "spike",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_tire_profile",
                    "title": {
                        "en": "Rear Tire Profile"
                    },
                    "input": "choice",
                    "options": [
                        "slick",
                        "low_profile",
                        "arched_barrel",
                        "offset_tread",
                        "spike",
                        "unknown"
                    ]
                },
                {
                    "id": "front_tire_compound",
                    "title": {
                        "en": "Front Tire Compound"
                    },
                    "input": "choice",
                    "options": [
                        "soft_reston",
                        "medium",
                        "hard",
                        "super_hard",
                        "low_friction_maroon",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_tire_compound",
                    "title": {
                        "en": "Rear Tire Compound"
                    },
                    "input": "choice",
                    "options": [
                        "soft_reston",
                        "medium",
                        "hard",
                        "super_hard",
                        "low_friction_maroon",
                        "unknown"
                    ]
                },
                {
                    "id": "front_tires",
                    "title": {
                        "en": "Front Tires"
                    },
                    "category": "tires",
                    "input": "picker_with_custom"
                },
                {
                    "id": "rear_tires",
                    "title": {
                        "en": "Rear Tires"
                    },
                    "category": "tires",
                    "input": "picker_with_custom"
                },
                {
                    "id": "front_wheels",
                    "title": {
                        "en": "Front Wheels"
                    },
                    "category": "wheels",
                    "input": "picker_with_custom"
                },
                {
                    "id": "rear_wheels",
                    "title": {
                        "en": "Rear Wheels"
                    },
                    "category": "wheels",
                    "input": "picker_with_custom"
                }
            ]
        },
        {
            "id": "rollers",
            "title": {
                "en": "Rollers"
            },
            "sort_order": 30,
            "slots": [
                {
                    "id": "front_roller_size",
                    "title": {
                        "en": "Front Roller Size"
                    },
                    "input": "choice",
                    "options": [
                        "9mm",
                        "11mm",
                        "13mm",
                        "17mm",
                        "19mm",
                        "13_12mm_double",
                        "19_19mm_double",
                        "unknown"
                    ]
                },
                {
                    "id": "front_roller_material",
                    "title": {
                        "en": "Front Roller Material"
                    },
                    "input": "choice",
                    "options": [
                        "plastic",
                        "pom_low_friction",
                        "rubber_ringed",
                        "aluminum",
                        "unknown"
                    ]
                },
                {
                    "id": "front_roller_type",
                    "title": {
                        "en": "Front Roller Type"
                    },
                    "input": "choice",
                    "options": [
                        "single",
                        "double_same_size",
                        "double_stepped",
                        "stabilizer",
                        "under_guard",
                        "unknown"
                    ]
                },
                {
                    "id": "front_roller_ring_type",
                    "title": {
                        "en": "Front Roller Ring / Contact Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "rubber_ring",
                        "plastic_ring",
                        "pom",
                        "unknown"
                    ]
                },
                {
                    "id": "front_rollers",
                    "title": {
                        "en": "Front Rollers"
                    },
                    "category": "rollers",
                    "input": "picker_with_custom"
                },
                {
                    "id": "rear_roller_size",
                    "title": {
                        "en": "Rear Roller Size"
                    },
                    "input": "choice",
                    "options": [
                        "9mm",
                        "11mm",
                        "13mm",
                        "17mm",
                        "19mm",
                        "13_12mm_double",
                        "19_19mm_double",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_roller_material",
                    "title": {
                        "en": "Rear Roller Material"
                    },
                    "input": "choice",
                    "options": [
                        "plastic",
                        "pom_low_friction",
                        "rubber_ringed",
                        "aluminum",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_roller_type",
                    "title": {
                        "en": "Rear Roller Type"
                    },
                    "input": "choice",
                    "options": [
                        "single",
                        "double_same_size",
                        "double_stepped",
                        "stabilizer",
                        "under_guard",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_roller_ring_type",
                    "title": {
                        "en": "Rear Roller Ring / Contact Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "rubber_ring",
                        "plastic_ring",
                        "pom",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_rollers",
                    "title": {
                        "en": "Rear Rollers"
                    },
                    "category": "rollers",
                    "input": "picker_with_custom"
                }
            ]
        },
        {
            "id": "stays_reinforcement",
            "title": {
                "en": "Stays & Reinforcement"
            },
            "sort_order": 40,
            "slots": [
                {
                    "id": "front_stay_type",
                    "title": {
                        "en": "Front Stay Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "kit_plastic",
                        "frp",
                        "carbon",
                        "aluminum",
                        "unknown"
                    ]
                },
                {
                    "id": "side_stay_type",
                    "title": {
                        "en": "Side Stay Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "kit_plastic",
                        "frp",
                        "carbon",
                        "aluminum",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_stay_type",
                    "title": {
                        "en": "Rear Stay Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "kit_plastic",
                        "frp",
                        "carbon",
                        "aluminum",
                        "unknown"
                    ]
                },
                {
                    "id": "front_stay",
                    "title": {
                        "en": "Front Stay Part"
                    },
                    "category": "stays",
                    "input": "picker_with_custom"
                },
                {
                    "id": "side_stay",
                    "title": {
                        "en": "Side Stay Part"
                    },
                    "category": "stays",
                    "input": "picker_with_custom"
                },
                {
                    "id": "rear_stay",
                    "title": {
                        "en": "Rear Stay Part"
                    },
                    "category": "stays",
                    "input": "picker_with_custom"
                }
            ]
        },
        {
            "id": "brakes",
            "title": {
                "en": "Brakes"
            },
            "sort_order": 50,
            "slots": [
                {
                    "id": "front_brake",
                    "title": {
                        "en": "Front Brake"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "sponge",
                        "rubber",
                        "plastic_skid",
                        "unknown"
                    ]
                },
                {
                    "id": "front_brake_thickness_mm",
                    "title": {
                        "en": "Front Brake Thickness"
                    },
                    "input": "number",
                    "unit": "mm"
                },
                {
                    "id": "front_brake_friction",
                    "title": {
                        "en": "Front Brake Friction"
                    },
                    "input": "choice",
                    "options": [
                        "low",
                        "medium",
                        "high",
                        "unknown"
                    ]
                },
                {
                    "id": "front_brake_contact",
                    "title": {
                        "en": "Front Brake Contact Position"
                    },
                    "input": "choice",
                    "options": [
                        "front_under",
                        "rear_under",
                        "side_angled",
                        "skid_only",
                        "unknown"
                    ]
                },
                {
                    "id": "front_brake_part",
                    "title": {
                        "en": "Front Brake Part"
                    },
                    "category": "brakes",
                    "input": "picker_with_custom"
                },
                {
                    "id": "rear_brake",
                    "title": {
                        "en": "Rear Brake"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "sponge",
                        "rubber",
                        "plastic_skid",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_brake_thickness_mm",
                    "title": {
                        "en": "Rear Brake Thickness"
                    },
                    "input": "number",
                    "unit": "mm"
                },
                {
                    "id": "rear_brake_friction",
                    "title": {
                        "en": "Rear Brake Friction"
                    },
                    "input": "choice",
                    "options": [
                        "low",
                        "medium",
                        "high",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_brake_contact",
                    "title": {
                        "en": "Rear Brake Contact Position"
                    },
                    "input": "choice",
                    "options": [
                        "front_under",
                        "rear_under",
                        "side_angled",
                        "skid_only",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_brake_part",
                    "title": {
                        "en": "Rear Brake Part"
                    },
                    "category": "brakes",
                    "input": "picker_with_custom"
                }
            ]
        },
        {
            "id": "body",
            "title": {
                "en": "Body"
            },
            "sort_order": 55,
            "slots": [
                {
                    "id": "body_part",
                    "title": {
                        "en": "Body Part"
                    },
                    "input": "picker_with_custom",
                    "category": "bodies"
                },
                {
                    "id": "body_type",
                    "title": {
                        "en": "Body Type"
                    },
                    "input": "choice",
                    "options": [
                        "hard_plastic",
                        "polycarbonate",
                        "clear",
                        "unknown"
                    ]
                },
                {
                    "id": "body_weight_g",
                    "title": {
                        "en": "Body Weight"
                    },
                    "input": "number",
                    "unit": "g"
                },
                {
                    "id": "body_modified",
                    "title": {
                        "en": "Body Modified"
                    },
                    "input": "choice",
                    "options": [
                        "no",
                        "yes",
                        "unknown"
                    ]
                }
            ]
        },
        {
            "id": "dampers",
            "title": {
                "en": "Dampers"
            },
            "sort_order": 60,
            "slots": [
                {
                    "id": "front_damper_type",
                    "title": {
                        "en": "Front Damper Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "mass_damper",
                        "side_mass",
                        "front_mass",
                        "rear_mass",
                        "body_damper",
                        "unknown"
                    ]
                },
                {
                    "id": "front_damper_part",
                    "title": {
                        "en": "Front Damper Part"
                    },
                    "category": "dampers",
                    "input": "picker_with_custom"
                },
                {
                    "id": "front_damper_count",
                    "title": {
                        "en": "Front Damper Count"
                    },
                    "input": "number"
                },
                {
                    "id": "front_damper_total_weight_g",
                    "title": {
                        "en": "Front Damper Total Weight"
                    },
                    "input": "number",
                    "unit": "g"
                },
                {
                    "id": "side_damper_type",
                    "title": {
                        "en": "Side Damper Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "mass_damper",
                        "side_mass",
                        "front_mass",
                        "rear_mass",
                        "body_damper",
                        "unknown"
                    ]
                },
                {
                    "id": "side_damper_part",
                    "title": {
                        "en": "Side Damper Part"
                    },
                    "category": "dampers",
                    "input": "picker_with_custom"
                },
                {
                    "id": "side_damper_count",
                    "title": {
                        "en": "Side Damper Count"
                    },
                    "input": "number"
                },
                {
                    "id": "side_damper_total_weight_g",
                    "title": {
                        "en": "Side Damper Total Weight"
                    },
                    "input": "number",
                    "unit": "g"
                },
                {
                    "id": "rear_damper_type",
                    "title": {
                        "en": "Rear Damper Type"
                    },
                    "input": "choice",
                    "options": [
                        "none",
                        "mass_damper",
                        "side_mass",
                        "front_mass",
                        "rear_mass",
                        "body_damper",
                        "unknown"
                    ]
                },
                {
                    "id": "rear_damper_part",
                    "title": {
                        "en": "Rear Damper Part"
                    },
                    "category": "dampers",
                    "input": "picker_with_custom"
                },
                {
                    "id": "rear_damper_count",
                    "title": {
                        "en": "Rear Damper Count"
                    },
                    "input": "number"
                },
                {
                    "id": "rear_damper_total_weight_g",
                    "title": {
                        "en": "Rear Damper Total Weight"
                    },
                    "input": "number",
                    "unit": "g"
                },
                {
                    "id": "damper",
                    "title": {
                        "en": "Legacy Damper Setup"
                    },
                    "input": "choice",
                    "deprecated": true,
                    "options": [
                        "none",
                        "side",
                        "front",
                        "rear",
                        "front_rear",
                        "unknown"
                    ]
                },
                {
                    "id": "damper_part",
                    "title": {
                        "en": "Legacy Damper Part"
                    },
                    "category": "dampers",
                    "input": "picker_with_custom",
                    "deprecated": true
                }
            ]
        }
    ]
}