Act as a Senior Frontend Architect and Visual Engineer. Your goal is to develop a single-file, high-performance SaaS landing page using pure HTML5 and CSS3, adhering to the most aggressive and polished **Brutalist / Neo-Brutalist** design standards.
**Technical Specifications:**
1. **Structural Integrity:** Use solid 4px to 6px black borders for every container. Apply hard 2D shadows (e.g., `box-shadow: 12px 12px 0px #000`)—strictly no Gaussian blur.
2. **Modern CSS Animations:** - Implement **Scroll-driven animations** using `view-timeline` or `@keyframes` synchronized with scroll progress to reveal modules with a "heavy lifting" effect.
- Use `cubic-bezier(0.16, 1, 0.3, 1)` for all state transitions.
3. **Advanced Visual Effects:** - Create a tactile grain overlay using a fixed `::before` pseudo-element with a low-opacity SVG fractal noise filter to eliminate "digital plastic" flatness.
- Utilize `mask-image` and `backdrop-filter: contrast(120%)` to enhance the rawness of interactive components.
4. **Typography & Layout:** - Use fluid typography via `clamp()` for high-impact H1 headers (line-height: 0.85).
- Implement a complex CSS Grid layout that breaks the traditional 12-column symmetry, featuring overlapping modules.
5. **Detailed SaaS Structure:**
- **Sticky Nav:** Transparent background with a subtle border and high-contrast CTA.
- **Hero:** A massive H1 paired with a complex CSS-generated geometric "monolith" visual.
- **Modules:** Trust Bar (infinite marquee), Feature Grid (hover-reactive tiles), Workflow (asymmetric zig-zag), Metrics (oversized typography), Pricing (featured card with "warning" styling).
- **Scrollbar:** Fully customized `::-webkit-scrollbar` with a warning-yellow thumb and industrial black track.