Style: Dimensional Layering. Type: General. Keywords: Depth, overlapping, z-index, layers, 3D, shadows, elevation, floating, cards, spatial hierarchy. Primary Colors: Neutral base (#FFFFFF, #F5F5F5, #E0E0E0) + brand accent for elevated elements. Secondary Colors: Shadow variations (sm/md/lg/xl), elevation colors, highlight colors for top layers. Effects & Animation: z-index stacking, box-shadow elevation (4 levels), transform: translateZ(), backdrop-filter, parallax. Best For: Dashboards, card layouts, modals, navigation, product showcases, SaaS interfaces. Do Not Use For: Print-style layouts, simple blogs, low-end devices, flat design requirements. Light Mode: ✓ Full. Dark Mode: ✓ Full. Performance: ⚠ Good. Accessibility: ⚠ Moderate (SR issues). Mobile-Friendly: ✓ Good. Conversion-Focused: ✓ High. Framework Compatibility: Tailwind 10/10, MUI 10/10, Chakra 10/10. Era/Origin: 2020s Modern. Complexity: Medium. AI Prompt Keywords: Design with dimensional layering. Use: z-index depth (multiple layers), overlapping cards, elevation shadows (4 levels), floating elements, parallax depth, backdrop blur for hierarchy, spatial UI feel.. CSS/Technical: z-index: 1-4 levels, box-shadow: elevation scale (sm/md/lg/xl), transform: translateZ(), backdrop-filter: blur(), position: relative for stacking, parallax on scroll. Implementation Checklist: ☐ Layers clearly defined, ☐ Shadows show depth, ☐ Overlaps intentional, ☐ Hierarchy clear, ☐ Performance optimized, ☐ Mobile depth maintained. Design System Variables: --elevation-1: 0 1px 3px rgba(0,0,0,0.1), --elevation-2: 0 4px 6px rgba(0,0,0,0.1), --elevation-3: 0 10px 20px rgba(0,0,0,0.1), --elevation-4: 0 20px 40px rgba(0,0,0,0.15), --blur-amount: 8px.