Nested Container Clean Agency Skill

Use When

Create a clean agency design system built from nested containers, with an outer editorial shell, inset dark feature blocks, rounded premium cards, and restrained accent color.

Apply this as a full design-system direction across page shell, section framing, cards, pricing blocks, call-to-action areas, and layout rhythm.
Use it when the interface should feel clean, premium, and agency-led, with strong container hierarchy instead of flat page sections.
This is not generic card-grid SaaS and not only a framing utility. The whole composition should be organized through nested shells and inset feature blocks.

Start with a centered outer page container that defines the main boundaries of the design with visible vertical rails, corner squares, or light frame lines.
Inside that outer shell, place one or more inset containers with contrasting surfaces, especially dark rounded feature zones nested within a light editorial page.
Build hierarchy by stacking containers inside containers: outer shell, inner dark section, then smaller rounded cards or content panels inside that section.
Keep typography clean, modern, and agency-like, with confident headlines, restrained body copy, and minimal UI noise.
Use a soft accent color sparingly for pills, buttons, active dots, subtle gradients, and call-to-action emphasis rather than saturating the full layout.

Prefer a max-width outer wrapper with consistent side padding, vertical boundary lines, and tiny corner markers to establish the global frame.
Use nested rounded containers to create depth: a darker major block inside the page, then lighter or darker cards inset within it depending on contrast needs.
Maintain generous whitespace between nested layers so each shell feels intentional and breathable.
Use border gradients, low-contrast strokes, and soft shadows to separate layers instead of heavy outlines everywhere.
Pricing sections, service groupings, or feature comparisons should feel like modular editorial blocks housed inside a larger premium container.
Motion should stay minimal and polished: masked text reveals, calm fade-ins, and light hover transitions are enough.

White or off-white outer shell with border-x rails and tiny corner squares defining the page bounds.
Large dark rounded section acting as a featured pricing or capability block nested within the lighter page shell.
Premium inner cards with gradient-border wrappers, soft surface contrast, and clear content grouping.
Small uppercase labels, compact pills, and restrained accent buttons to preserve the clean agency tone.
Editorial spacing that lets each nested container breathe, with strong alignment and uncluttered copy blocks.

Nesting depth: choose how many layers of shells to use before the system feels too busy.
Contrast balance: tune the jump between the outer shell and inset containers so the hierarchy feels strong but elegant.
Corner radius: keep rounded containers polished and premium, but avoid making them feel overly playful.
Accent strength: use the accent color as punctuation for key controls, tags, and highlights only.
Container density: give cards enough internal padding so the system reads premium instead of cramped.

Flat sections with no clear outer-to-inner container hierarchy.
Generic agency layouts that use one level of cards and call it structured.
Overdecorated gradients, glows, or excessive accent color that break the clean tone.
Equal visual weight on every nested block, which weakens hierarchy.
Cramped containers with insufficient spacing between shell levels.