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No.97 · Cards· New

Filter Step Card

A numbered feature card that shows the feature working: stacked dark sheets hold a real filter panel with place, price and date tabs and a live match count, over a field of drifting characters lit by a warm glow behind the step number.

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Written for the variant you picked above: Copper

Build a numbered feature card that demonstrates its feature with a working mini UI (React + CSS, no libraries). Card: 40em × 44em (16px base), radius 2em, clipped. Background near-black at the top warming toward a dark tint of the glow colour at the bottom; a hairline rim tinted with the glow, brighter along the top edge. Upper half, a stack of sheets: a faint outlined back sheet (inset 1em, 25.6em tall, fading out at its foot) and a front sheet (inset 3.3em each side, 23.7em tall, #1a1817 → #0f0d0d, hairline, deep shadow) holding the panel: - a three-tab segmented control (Place, Price, Date) in a hairline tray; each tab has a grey icon (pin, coin, calendar), its label and a small square count badge in the badge colour showing how many constraints that tab applies (dimmed at 0). Tabs follow the ARIA tabs pattern: arrows and Home/End move, roving tabindex. - the active panel: Price shows "From" and "To" money fields ($0 / $720; an empty field means open-ended), Place a distance slider, Date seven day toggles. - a wide frosted action bar: an ✕ that clears every filter and "See 156 matching events", where the number is counted live from a small seeded list of events (a polite live region announces it). Lower half: a dashed 1.5px rule across the card at 65% with a frosted step pill ("04") on it; behind it a warm glow (a white-hot core, a glow-colour ellipse and a broad wash, breathing). Behind everything, rows of random alphanumeric strings in a dim glow colour, staggered every other row and masked to fade from the glow, with a few characters re-rolling every 160ms. Under the rule, a centred title (2.5em, 500, tracking −0.04em) whose first word is dimmed, and a 1.38em description with a few words set brighter. Reduced motion stops the re-rolling and the breathing. Props: step, title, children (description), tone {glow, badge, page}, onApply(filters, count). Selected variant — Copper (copper): Glow #e07a3f with #ff8a4c badges on a #070b14 navy page. 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: Switch tabs by click or arrow keys; type prices, drag the distance or toggle days and the match count updates; ✕ clears every filter; the action reports the filters and count. Motion: Glyphs re-roll a few characters every 160ms; the glow breathes over 6s; tab and badge states ease over 0.2s. Accessibility: Tabs use tablist, tab and tabpanel with roving focus; fields have labels; day toggles use aria-pressed; the clear button is labelled; the match count is announced politely; the title carries the step number for screen readers. The glyph field and glow are aria-hidden. Reduced motion stops all loops. Responsive behavior: 40em wide, shrinking to its container; under 520px the type steps down and the sheet insets tighten so the fields still fit side by side. Touch: Every control is a normal tap target; the glyph field drifts on its 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
Switch tabs by click or arrow keys; type prices, drag the distance or toggle days and the match count updates; ✕ clears every filter; the action reports the filters and count.
Motion
Glyphs re-roll a few characters every 160ms; the glow breathes over 6s; tab and badge states ease over 0.2s.
Accessibility
Tabs use tablist, tab and tabpanel with roving focus; fields have labels; day toggles use aria-pressed; the clear button is labelled; the match count is announced politely; the title carries the step number for screen readers. The glyph field and glow are aria-hidden. Reduced motion stops all loops.
Responsive
40em wide, shrinking to its container; under 520px the type steps down and the sheet insets tighten so the fields still fit side by side.
On touch
Every control is a normal tap target; the glyph field drifts on its own.

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