Imported from jhy0285/monofield (plugins/_official/examples/portfolio-cosmic/SKILL.md). Install upstream with npx skills add jhy0285/monofield --skill portfolio-cosmic. Copyright stays with the author.

Portfolio Cosmic — Dark Single-Page Portfolio Landing

Produce a premium dark single-page portfolio landing page. A complete, rendered reference implementation ships beside this skill at example.html — start from it. Copy example.html, then adjust copy, names, and project data; do not rewrite the CSS or invent a new visual language. The seed already encodes the exact tokens, fonts, gradient, sections, and animations described below.

This is the authoritative build brief. The named colors, fonts, gradient, animation curves, and section structure are locked.

Images (critical): example.html ships every project / journal / exploration image as an inlined data:image/svg+xml;base64,… URI (dark gradient placeholders). Keep those exactly as they are. Do not swap them for i.pravatar.cc, api.dicebear.com, picsum.photos avatars, or any remote avatar host — external avatar hosts rate-limit / 403 inside the preview sandbox and render broken. The hero + contact background videos use a stable Mux HLS stream and may stay remote. Only replace an image if the user supplies a real asset, and prefer a data URI over a remote host.

Stack

• Default output: a single self-contained HTML file (the example.html seed). It already inlines everything.
• If the user explicitly asks for a React + Vite + Tailwind + TypeScript project, port the seed faithfully: same tokens, same section structure, GSAP for entrance/marquee/ScrollTrigger pin, Framer Motion for whileInView reveals and role AnimatePresence, hls.js for the background video. Use react-router-dom + tailwindcss-animate and add smooth-scroll nav + page transitions. Do not change the design while porting.
• Motion loading (locked). If you emit a single self-contained inline-JSX file instead of the Vite project, Motion's React hooks (useScroll, useTransform, useAnimationFrame, …) exist only in the React UMD build: load <script src="https://unpkg.com/framer-motion@11.11.13/dist/framer-motion.js"></script> and read them off window.Motion — never the vanilla https://unpkg.com/motion@.../dist/motion.js DOM bundle, which lacks useScroll and renders a blank page. (The Vite project imports from npm and is unaffected.)

Fonts

Google Fonts: Inter (300–700) and Instrument Serif (italic, 400).

• --font-body: 'Inter', sans-serif → body text.
• --font-display: 'Instrument Serif', serif (italic) → all display headings, names, the italic accent words, stat numbers. Class .font-display.

CSS Custom Properties (HSL channels, no hsl() wrapper — Tailwind adds it) — locked

--bg: 0 0% 4%;
--surface: 0 0% 8%;
--text: 0 0% 96%;
--muted: 0 0% 53%;
--stroke: 0 0% 12%;
--accent: 0 0% 96%;

Tailwind colors: bg = hsl(var(--bg)), surface = hsl(var(--surface)), text-primary = hsl(var(--text)), muted = hsl(var(--muted)), stroke = hsl(var(--stroke)).

Forced dark theme — no light-mode toggle. Body gets bg-bg text-text-primary.

Accent Gradient — locked

linear-gradient(90deg, #89AACC 0%, #4E85BF 100%) — used on the logo ring, hover border rings, and progress bars. Utility class .accent-gradient. The animated-border variant uses background-size: 200% 100% + gradient-shift.

Keyframe Animations (in index.css)

• scroll-down — translateY(-100%) → translateY(200%), 1.5s ease-in-out infinite (hero scroll indicator).
• role-fade-in — opacity 0 + translateY(8px) → opacity 1 + translateY(0), 0.4s ease-out (hero role word).
• gradient-shift — background-position 0% 50% → 100% 50% → 0% 50%, 6s ease infinite (animated gradient borders).
• pulse-dot — green availability dot pulse (footer).

Section 1 — Loading Screen

Full-screen overlay (fixed inset-0 z-[9999] bg-bg). A requestAnimationFrame counter from 000 → 100 over 2700ms.

• Top-left: "Portfolio" label — text-xs muted uppercase tracking-[0.3em].
• Center: rotating words ["Design", "Create", "Inspire"] cycling every 900ms, font-display italic text-text-primary/80, with y-20→0→-20 swap (in vanilla: fade/translate via setInterval + transition).
• Bottom-right: counter display font-display tabular-nums, String(count).padStart(3,"0").
• Bottom: h-[3px] bg-stroke/50 bar with an inner .accent-gradient div, scaleX(count/100), box-shadow: 0 0 8px rgba(137,170,204,0.35).
• On reaching 100: 400ms delay then dismiss (opacity → 0, pointer-events: none).

Section 2 — Hero

Full-viewport section, background HLS video + centered content.

• Background video: HLS source https://stream.mux.com/Aa02T7oM1wH5Mk5EEVDYhbZ1ChcdhRsS2m1NYyx4Ua1g.m3u8 via hls.js (native HLS fallback). autoplay muted loop playsInline, centered with min-w-full min-h-full object-cover -translate-x/y-1/2. The seed also ships a CSS radial-gradient .video-fallback behind it so the card renders even when HLS does not autoplay in the sandbox — keep it.
• Dark overlay bg-black/20; bottom fade h-48 bg-gradient-to-t from-bg to-transparent.
• Navbar (fixed, floats top-center): pill inline-flex rounded-full backdrop-blur-md border-white/10 bg-surface px-2 py-2; gains shadow-md when scrollY > 100. Contents: 9×9 logo circle with accent-gradient ring (rotates on hover) + "JA" font-display italic; divider; nav links ["Home","Work","Resume"] (active = text-text-primary bg-stroke/50); divider; "Say hi ↗" button with accent gradient ring on hover.
• Hero content (centered, z-10): eyebrow "COLLECTION '26" (blur-in); name "Michael Smith" text-6xl→9xl font-display italic leading-[0.9] (name-reveal); role line "A {role} lives in Chicago." with roles cycling every 2s through ["Creative","Fullstack","Founder","Scholar"] (role word font-display italic animate-role-fade-in, re-key to retrigger); description max-w-md muted; CTA row: "See Works" solid (bg-text-primary text-bg, hover gradient ring) + "Reach out..." outlined (border-2 border-stroke, hover gradient ring). Both rounded-full px-7 py-3.5 hover:scale-105.
• GSAP entrance (ease: power3.out): .name-reveal opacity 0→1 / y 50→0 / 1.2s / delay 0.1s; .blur-in opacity 0→1 / blur(10px)→0 / y 20→0 / 1s / stagger 0.1 / delay 0.3s.
• Scroll indicator (bottom-center): "SCROLL" label text-xs muted tracking-[0.2em] over a w-px h-10 bg-stroke line with an .animate-scroll-down highlight.

Section 3 — Selected Works

bg-bg py-12 md:py-16, inner max-w-[1200px] px-6→16.

• Header (whileInView opacity 0→1 / y 30→0 / 1s / ease [0.25,0.1,0.25,1] / once / margin "-100px"): eyebrow w-8 h-px bg-stroke + "Selected Work"; heading "Featured projects" (italic word font-display); subtext "A selection of projects I've worked on, from concept to launch."; "View all work" button (desktop only, gradient hover ring).
• Bento grid: grid-cols-1 md:grid-cols-12 gap-5 md:gap-6, column spans alternate 7 / 5 / 5 / 7. 4 cards: Automotive Motion, Urban Architecture, Human Perspective, Brand Identity. Each: bg-surface border-stroke rounded-3xl, background image object-cover group-hover:scale-105, halftone overlay radial-gradient(circle,#000 1px,transparent 1px) 4×4px opacity-20 mix-blend-multiply, hover bg-bg/70 + backdrop-blur-lg revealing a white pill "View — Title" (title font-display italic) with an animated gradient border.

Section 4 — Journal

bg-bg py-16 md:py-24. Same header pattern: eyebrow + "Recent thoughts" + subtext + "View all" button. 4 entries as horizontal pills (rounded-[40px] sm:rounded-full): flex items-center gap-6 p-4 bg-surface/30 hover:bg-surface border border-stroke with a 72px rounded image, title, read time, and date.

Section 5 — Explorations (Parallax Gallery)

min-h-[300vh] scroll-driven section.

• Layer 1 — pinned center (z-10): h-screen pinned via GSAP ScrollTrigger.create({ pin, pinSpacing:false }) (in vanilla: position: sticky; top:0). Eyebrow "Explorations", heading "Visual playground", subtext + Dribbble button.
• Layer 2 — parallax columns (z-20, absolute): grid grid-cols-2 gap-12 md:gap-40 inside max-w-[1400px]. 6 items split into 2 columns with GSAP scroll-driven parallax (in vanilla: a passive scroll listener computing section progress and writing translateY per card, opposite direction per column). Cards aspect-square max-w-[320px], slight rotation, lightbox on click.

Section 6 — Stats

bg-bg py-16 md:py-24. 3-column grid: 20+ Years Experience, 95+ Projects Done, 200% Satisfied Clients. Numbers font-display.

Section 7 — Contact / Footer

bg-bg pt-16 md:pt-20 pb-8 md:pb-12 overflow-hidden.

• Background video: same Mux HLS source as the hero, flipped vertically (scale-y-[-1]), heavier overlay bg-black/60. Keep the .video-fallback behind it.
• GSAP marquee: "BUILDING THE FUTURE • " repeated 10×, GSAP xPercent:-50, duration 40, ease:"none", repeat:-1 (in vanilla: rAF translateX loop, duplicate the track for a seamless wrap).
• CTA: email button mailto:hello@michaelsmith.com with gradient hover ring.
• Footer bar: social links [Twitter, LinkedIn, Dribbble, GitHub] + a green pulse-dot + "Available for projects".

Vanilla → Framework Mapping (how the seed encodes the React spec)

• Framer Motion whileInView → IntersectionObserver toggling .reveal.in.
• useScroll / useTransform parallax → passive scroll listener writing inline transform: translateY().
• GSAP ScrollTrigger pin → position: sticky; top: 0.
• GSAP marquee / role AnimatePresence → requestAnimationFrame loop / setInterval swap.
• hls.js video → <video> with the .m3u8 source plus a CSS radial-gradient fallback layer.

Color Rules — hard

Forced dark only. Palette: near-black --bg (0 0% 4%), --surface (0 0% 8%), off-white text (0 0% 96%), grey --muted/--stroke. The only chromatic accent is the blue gradient #89AACC → #4E85BF and the green availability dot #4ade80. Do not introduce purple/indigo or a different accent hue — the blue gradient is locked.

Responsive

• ≥768px: bento spans 7/5/5/7 with aspect 4/3 and 3/4.
• <768px: bento stacks to 1 column (aspect 4/3), stats grid → 1 column centered, parallax columns tighten gap/padding, journal pills use the smaller radius.