Truck Fleet Maintenance & DOT Inspection Tracker.

Build a maintenance and DOT inspection tracker for Ironwood Transport, a 14 vehicle regional carrier out of Columbus running tractors, box trucks, and vans. Layout. Across the top place a three segment status strip: Overdue (2, red), Due Soon (4, amber, meaning within 30 days or 2,000 miles), and Up To Date (8, green). The main region is a vehicle card grid grouped into those three bands in that order. Each card shows the unit number and vehicle type, year and model, current odometer, next preventive maintenance due shown as miles remaining or days remaining, whichever comes first, the DOT inspection due date with a day countdown, and the last service date. Anything overdue renders in red on the card, anything due soon in amber. Clicking a card opens a detail panel with the vehicle's info and its full work order history. A second tab, Work Orders, opens with a bar chart of maintenance spend by unit over the last 6 months and a line chart of total monthly spend across the same 6 months, followed by a sortable table of completed work orders: date, unit, work performed, odometer at service, parts cost, labor cost, and total, filterable by unit and default sorted newest first. A Log Work Order button opens a dialog capturing unit, date, description, odometer, parts cost, and labor cost; logging preventive maintenance recomputes that unit's next due point. Data. Seed 14 vehicles: 6 tractors with odometers between 250,000 and 480,000 miles, 5 box trucks between 90,000 and 210,000, and 3 vans between 40,000 and 90,000. Preventive maintenance intervals: tractors every 15,000 miles, box trucks every 10,000, vans every 7,500 miles or 6 months. Spread DOT inspection due dates over the next 11 months with one already past due. Seed 48 work orders across the last 6 months, ranging from an $80 oil service to a $3,400 clutch job. Plant the story: unit 108, the highest mileage tractor, accounts for nearly a third of six month spend with repeat brake and cooling repairs, and it is also one of the two overdue units, so the spend chart and the red band point at the same truck. Behavior. Due statuses, countdowns, and spend totals are computed, never typed. Public visitors browse read only, so the bands, cards, and charts must carry the story with no clicks. Visual identity. Use an indigo accent for primary actions, band headers, and chart emphasis on a clean light neutral base, with a no nonsense fleet shop feel.