The prompt ledger

Design a digital art study called “LUCENT / A study in impossible light.” Avoid generic near-black plus neon WebGL styling. Use a porcelain-white gallery, architectural cobalt fields, and coral only as refracted energy. The page must read as six deliberate narrative beats, not stacked marketing sections. Spend nearly all expressive complexity on one sculptural object and let typography, space, and hard colour planes frame it. The work should feel poised, strange, tactile, and internationally art-directed.

Create an original real-time WebGL sculpture for LUCENT using Three.js primitives and custom shader code, with no downloaded 3D model. Build two nested faceted crystalline shells, sliced orbital rings, and one coral energy core. Combine Fresnel edge light, normal-driven cobalt-to-porcelain shading, restrained chromatic dispersion, and transparent layering. The object should breathe almost imperceptibly, then open, refract, and settle in response to native page scroll. Do not add orbit controls, pointer chase, particles, a custom cursor, or game-like interaction. Cap device pixel ratio, pause when the tab is hidden, and stop continuous rendering for reduced motion.

Draw a compact SVG fallback for the LUCENT sculpture using original polygon geometry only. Layer porcelain facets with cobalt outlines around a coral inner core, add two incomplete orbital ellipses, and preserve generous negative space. It must remain legible at 320 pixels wide, use no filters that resemble neon glow, contain no text, expose no interaction, and render as a complete intentional artwork when JavaScript, media, or WebGL is unavailable.

Implement the LUCENT homepage as six semantic beats: threshold, material, anatomy, spectrum, afterimage, and invitation. Keep the central sculpture visually continuous across the early story on desktop, then use still optical echoes later. On mobile, place the sculpture inside the first viewport and never let absolute decoration overlap copy. Use CSS scroll-driven animation only as progressive enhancement, keep native scrolling, make all controls at least 44 by 44 pixels, provide visible focus, and ensure reduced motion shows the final composed states with no missing content.

Write a human-readable build guide for LUCENT that explains art direction, the design lock, procedural geometry, shader thinking, scroll choreography, fallbacks, accessibility, performance, and the three-pass review method without pretending the process was automatic. Also publish the complete prompt ledger verbatim. Both routes should feel like quiet extensions of the same optical identity, with one h1, clear navigation, compact examples, and no generic feature-card grid.

Review the completed LUCENT site in exactly three passes. Pass one: inspect fresh desktop and mobile views for overflow, overlap, contrast, focus, failed rendering, reduced-motion gaps, and no-JavaScript or no-WebGL failures; fix every concrete defect before proceeding. Pass two: state one depth-and-tactility hypothesis for making the coral core feel physically contained inside the translucent prism, test one targeted change, and reject bloom, particles, pointer interaction, a second canvas, and extra glow. Pass three: compare the result with DESIGN.md for cohesion, rhythm, and reduction; remove anything that weakens the cobalt typography or competes with the prism, then verify the authored static fallback. Record each finding, fix, verification, and screenshot as evidence.

Act as an independent adversarial reviewer of LUCENT. Judge fresh 1440-pixel, 390-pixel, and reduced-motion captures against DESIGN.md, never against an external reference. Score each required beat from 1 to 5 in exactly five columns: Composition, Colour-energy, Typography, Illustration, and Motion. Identify any Blocker or High finding, test whether the impossible prism remains the sole focal signature, and treat mobile title contact as a defect if readability, overflow, or hierarchy is lost. The gate passes only when no score is below 3 and no Blocker or High finding remains. Report the table, average, and concise rationale.