Design System: Whiteboard

1. Visual Theme & Atmosphere

Whiteboard-style landing page that looks like a collaborative brainstorming session. Ideal for brainstorming, education, ferramentas colaborativas, startups, apresentações. AI-ready template.

• Density: 3/10 — Airy
• Variance: 8/10 — Expressive
• Motion: 8/10 — Cinematic

2. Color Palette & Roles

• Board White (#FEFEFE) — Light surface, card backgrounds
• Marker Black (#2C2C2C) — Dark surface, primary background
• Marker Blue (#1565C0) — Accent highlight, links and focus states
• Marker Red (#D32F2F) — Error states, destructive actions
• Marker Green (#388E3C) — Success states, positive indicators
• Marker Orange (#F57C00) — Warm accent, call-to-action secondary
• Highlight Yellow (#FFF9C4) — Warning states, attention indicators

3. Typography Rules

• Display / Hero: Architects Daughter — Weight 700, tight tracking, used for headline impact
• Accent: Patrick Hand — Used for decorative or emphasis text
• Body: Architects Daughter — Weight 400, 16px/1.6 line-height, max 72ch per line
• UI Labels / Captions: Architects Daughter — 0.875rem, weight 500, slight letter-spacing
• Monospace: JetBrains Mono — Used for code, metadata, and technical values

Scale:

• Hero: clamp(2.5rem, 5vw, 4rem)
• H1: 2.25rem
• H2: 1.5rem
• Body: 1rem / 1.6
• Small: 0.875rem

4. Component Stylings

• Primary Button: Subtly rounded (0.5rem) shape. Accent color fill. Hover: 8% darken + subtle lift shadow. Active: -1px translate tactile press. Font weight 600. No outer glows.
• Secondary / Ghost Button: Outline variant. 1.5px border in muted color. Text in primary color. Hover: subtle background fill.
• Cards: Subtly rounded (0.5rem) corners. Surface background. Subtle shadow (0 2px 12px rgba(0,0,0,0.06)). 1px border stroke.
• Inputs: Label above input. 1px border stroke. Focus ring: 2px accent color offset 2px. Error text below in semantic red. No floating labels.
• Navigation: Primary surface background. Active item: accent color indicator. Font weight 500 when active.
• Skeletons: Shimmer animation matching component dimensions. No circular spinners.
• Empty States: Icon-based composition with descriptive text and action button.

5. Layout Principles

• Grid: CSS Grid primary. Max-width containment: 1280px centered with 1.5rem side padding.
• Spacing rhythm: Balanced. Base unit: 0.5rem (8px).
• Section vertical gaps: clamp(4rem, 8vw, 8rem).
• Hero layout: Asymmetric composition.
• Feature sections: Asymmetric grid with varied card sizes. No 3-equal-columns.
• Mobile collapse: All multi-column layouts collapse below 768px. No horizontal overflow.
• z-index contract: base (0) / sticky-nav (100) / overlay (200) / modal (300) / toast (500).

6. Motion & Interaction

• Physics: Spring — stiffness 120, damping 20. Confident, weighted transitions.
• Entry animations: Fade + translate-Y (16px → 0) over 540ms ease-out. Staggered cascades for lists: 120ms between items.
• Hover states: Scale(1.03) + shadow lift over 200ms.
• Page transitions: Fade + slide (300ms).
• Performance: Only transform and opacity animated. No layout-triggering properties.

7. Anti-Patterns (Banned)

• No emojis in UI — use icon system only (Lucide, Heroicons)
• No pure black (#000000) — use off-black or charcoal variants
• No oversaturated accent colors (saturation cap: 80%)
• No 3-column equal-width feature layouts — use zig-zag or asymmetric grid
• No h-screen — use min-h-[100dvh]
• No AI copywriting clichés: "Elevate", "Seamless", "Unleash", "Next-Gen"
• No broken external image links — use picsum.photos or inline SVG
• No generic lorem ipsum in demos

Act as a Senior Frontend Engineer and Expert UI Designer. Your task is to code a complete Landing Page on the first attempt.

• Landing Page Theme:
• Sections to add:

Generate the final code immediately following these definitions:

Style

• Name: Whiteboard
• Type: Clean, Sketch, Collaborative, Marker-Style
• Keywords: whiteboard, marker, sketch, hand-drawn, clean, collaborative, brainstorm, wireframe, dry-erase, diagram
• Era: Modern / Collaborative Design
• Light/Dark: ✓ Full / ✗ No

Color Palette

• Primary: Board White #FEFEFE, Marker Black #2C2C2C, Marker Blue #1565C0
• Secondary: Marker Red #D32F2F, Marker Green #388E3C, Marker Orange #F57C00, Highlight Yellow #FFF9C4

Visual Effects

Hand-drawn style borders (slightly irregular via SVG filter), marker-weight typography (variable stroke), subtle grid/dot pattern background, sticky note elements with slight rotation (1-3deg), connector lines between sections, whiteboard shadow on edges

AI Visual Direction

Design a whiteboard-style landing page that looks like a collaborative brainstorming session. Clean white background with subtle dot grid pattern. Use marker-style typography in black, blue, red, and green. Include sticky note elements with slight rotation, hand-drawn connector lines, and sketch-style icons. Cards should look like pinned notes. Add whiteboard marker thickness variation in borders.

CSS Technical

background: #FEFEFE with radial-gradient dot pattern, border: 2px solid with slight irregularity via SVG filter, font-family: 'Architects Daughter' or 'Patrick Hand', transform: rotate(1-3deg) for sticky notes, box-shadow: 2px 2px 5px rgba(0,0,0,0.1) for pinned effect, background-color: #FFF9C4 for highlight areas

Design System Variables

--bg-board: #FEFEFE, --marker-black: #2C2C2C, --marker-blue: #1565C0, --dot-grid: radial-gradient pattern, --note-rotation: 1-3deg, --marker-weight: 2-3px, --sticky-bg: #FFF9C4

Implementation Checklist

• ☐ Clean white background with dot grid
• ☐ Marker-style colored typography
• ☐ Sticky note elements with rotation
• ☐ Hand-drawn style borders
• ☐ Connector lines between sections
• ☐ Sketch-style SVG icons

Execution Rules

1. Strictly follow the defined visual style.
2. Use high-quality inline SVG icons (Heroicons or Lucide style) — NEVER use emojis as icons.
3. Add cursor-pointer and smooth hover states (transition-all) on all interactive elements.
4. Required Page Structure:
   • Navbar (Logo + Links + CTA)
   • Hero Section (Impactful Headline + Subtitle + 2 buttons + 3D/Abstract visual element via CSS)
   • Features (3 cards with icons)
   • Testimonials (3 cards)
   • Pricing (3 tiers, highlight the middle one)
   • Final CTA
   • Full Footer with social links, privacy policy, terms of use, contact and SEO links.
5. All text content must be in English.
6. The visual must be CLEARLY distinct — do not create a "default Bootstrap" design. Force the use of the provided design system variables.
7. Use <style> tags in the head for custom classes (especially for complex backdrop-filter effects and animations) that Tailwind CDN doesn't cover.
8. Full Responsiveness: Layout must adapt perfectly to Mobile, Tablet and Desktop (vertical stack on mobile).
9. Include basic SEO, Viewport and Open Graph meta tags in <head>.
10. Footer must contain: Copyright 2026, Secondary navigation links and Social media icons.
11. Make the creative decisions needed to deliver the complete, functional result now.