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No.93 · Cards· New

Conduit Card

A square card set in the path of a beam of light that pours down from above, spreads across its top edge and runs out of the bottom, with circuit traces carrying pulses in from either side.

The prompt

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Written for the variant you picked above: Violet

Build a feature card staged inside a beam of light (React + SVG + CSS, no libraries). Scene: a 4:3 frame (max 1200px wide; at least 680px wide on phones, with the sides cropping) on a near-black page with a faint radial wash of the halo colour and a dozen fixed, twinkling stars. Type sizes come from the frame width (20px at 1200px, never under about 11px). Beam: one SVG in a 1200 × 900 viewBox draws a beam pouring from the top edge into the card's top edge, and a mirrored one from the card's bottom edge to the floor. Each is a closed "bell" path whose half-width is w0 + flare / (distance-to-the-card + soft), a thread far away that spreads like liquid on contact, in three layers: a wide halo-colour fill blurred 30, a lighter mid fill blurred 6 and a thin white core blurred 1.4. Two broad halo-colour blooms (blurred 60) sit where the beams strike the card. The beams flicker gently (opacity 0.86–1 over 2.8s, out of phase) and brighten on hover. Circuit traces: eight 1.6px polylines with 45° bends come in from the left and right edges to the card's sides, at 50% opacity, each with a short bright dash (dasharray 60/940 on a pathLength of 1000) running along it every 5.5s. Card: 37.9% × 49.8% of the frame, centred just below the middle, radius 1.75em, filled with a vertical gradient (darker edge tone at top and bottom, the main tone through the middle) and a slightly lighter centre, a soft light pool at its lower left and a fine 135° hatch at 2.8% white. A 3px masked ring carries white light along the top edge (fading in from the left), down the first part of the right edge and along the bottom; a blurred copy of the ring makes the glow. At the top right, an original hatched bolt mark at 32% of the ink colour. At the bottom left: a mono index ("01", 0.6em), a light 1.6em title and a 0.7em muted two- or three-line description. Hover lifts the card a little. Reduced motion stops the flicker, pulses and twinkle. Props: index, title, children (the description), tone {card[2], halo, trace, ink, muted, page}. Selected variant — Violet (violet): Card #3524ab with #2a1d88 edges, halo #7c5cff, traces #3f33b8, ink #ece8ff, muted #a198e6, page #07071a. This selection takes precedence over references to other themes or options in the general brief. Implement this selected appearance; do not add a variant picker or alternative appearances unless requested. Implementation requirements: Use React and TypeScript. Keep the component self-contained, with uniquely scoped CSS and no animation libraries. Include required imports, styles and font setup in the result. Interaction: Hover lifts the card and quickens the beam; otherwise it plays on its own. The card holds a real heading and paragraph. Motion: Beam flicker 2.8s alternate (1.4s on hover); trace pulses every 5.5s; stars twinkle over 4s; card lift 0.5s. Accessibility: The scene SVG is aria-hidden; the card is an article with a heading and paragraph. Light text on the deep card stays above 7:1 for the title and 4.5:1 for the description. Reduced motion stops every loop and hides the pulses. Responsive behavior: Keeps a 4:3 frame; below 680px the frame stays 680px wide and crops at the sides so the card and its text stay legible. Touch: No hover lift on touch; the beam and pulses run on their own. Preserve keyboard access, visible focus and reduced-motion behavior. Keep fictional demo data and simulated service calls in a separate usage example; expose callbacks for real actions and recover from rejected requests. Keep usage-example links inside the demo: use local buttons or prevent navigation. Demonstration links must not navigate to Vitrine routes or open other pages; preserve real URL support in the reusable component itself. Verify the result at narrow and wide viewport sizes, with keyboard input and reduced motion enabled.

Notes

Interaction
Hover lifts the card and quickens the beam; otherwise it plays on its own. The card holds a real heading and paragraph.
Motion
Beam flicker 2.8s alternate (1.4s on hover); trace pulses every 5.5s; stars twinkle over 4s; card lift 0.5s.
Accessibility
The scene SVG is aria-hidden; the card is an article with a heading and paragraph. Light text on the deep card stays above 7:1 for the title and 4.5:1 for the description. Reduced motion stops every loop and hides the pulses.
Responsive
Keeps a 4:3 frame; below 680px the frame stays 680px wide and crops at the sides so the card and its text stay legible.
On touch
No hover lift on touch; the beam and pulses run on their own.

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