Create a production-ready editable SVG of a hydraulic excavator arm for a Flutter splash screen animation. This SVG will be animated, so every moving part must be separate and editable. Style: Minimal, flat vector, modern, premium, industrial, Apple/Airbnb inspired, matte black, no gradients, no shadows, no textures, transparent background. Perspective: Perfect orthographic side view facing right. No 3D, no isometric, no perspective distortion. Include ONLY: Boom Stick Bucket Hydraulic cylinders Hydraulic rods Pivot pins Do NOT include: Tracks Wheels Cabin Engine Counterweight Operator Ground Dirt Background The SVG must be organized into separate groups/layers so each part can rotate independently. Keep the following hierarchy: Boom Stick Bucket BoomCylinder BoomRod StickCylinder StickRod BucketCylinder BucketRod PivotPins Each rotating part must have its pivot centered on the actual mechanical joint. Canvas size: 2000 × 1200 px with generous transparent padding. Keep realistic CAT/Komatsu-style proportions and medium mechanical detail suitable for mobile UI animation. If grouped SVG output is not possible, generate four separate SVG files with identical canvas size and alignment: boom.svg stick.svg bucket.svg hydraulic.svg All assets must align perfectly when stacked. The final assets will be animated in Flutter using independent rotation to create a realistic excavator that constructs a search bar during the app splash screen. Use clean vector paths and preserve editability.

The image shows a black excavator on a white background with a search bar at the bottom. The excavator is animated, giving the impression of movement.