Monocromo Minimalismo Constructor de Sitios Web Prompt

Build a premium, modern productivity tool website in a strict monochrome minimalism style using only black, white, charcoal, and neutral gray tones, with absolutely no gradients anywhere. Create a clean, spacious interface with bold sans-serif typography, generous whitespace, subtle 1px borders, crisp geometric icons, restrained shadows, smooth micro-interactions, and a highly polished SaaS aesthetic. Include a minimal navigation bar, compelling hero section with a clear headline and CTA, an interactive productivity dashboard featuring tasks, focus timer, daily goals, notes, calendar, habit tracking, progress metrics, and quick actions, followed by concise feature sections, testimonials, pricing, FAQ, and a minimal footer. Prioritize exceptional UX, responsive design, fast navigation, accessibility, strong visual hierarchy, and distraction-free workflows. Keep every component functional, elegant, modular, and visually consistent, with zero unnecessary decoration, zero bright colors, and absolutely no gradient colors.