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No.56 · Buttons· New

Live Button

An on-air button: a red tag whose dot sends out beating rings, the action, and a ticking count of people watching. Joining turns the play icon into a small bouncing equaliser.

The prompt

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Written for the variant you picked above: Light

Build an on-air 'Watch live' pill button (46px tall, fully rounded, 1px hairline, Inter 500 at 15px). Structure, left to right: a red 34px 'LIVE' tag (white, 12px, 700, 0.08em tracking, uppercase) holding a white 8px dot with two rings that expand to 3.2× and fade over 2s, the second 1s behind; a play icon and 'Watch live'; then, after a hairline divider, the viewer count in muted tabular figures, compacted (2.4k, 12k, 1.4M) and ticking every couple of seconds. Pressing toggles aria-pressed: the label reads 'Watching' and the play icon becomes three small red equaliser bars bouncing at different speeds (0.7s, 0.9s, 1.1s). Hover tints the edge red and adds a soft red shadow; press scales to 0.97. The count is also in the accessible name ('2.4k watching'). Palette: ink #111111 / #ededed, muted #6b6b6b / #a0a0a0, face #ffffff / #161616, hairline #e2e2e2 / #2c2c2c, red #e11d2e / #ff3b4b, focus ring #2563eb / #6ea8fe (2px, 3px out). Show it centred on a #f6f6f5 / #0a0a0a page. Selected variant — Light (light): Palette for this theme (Light): --pulb-edge #e2e2e2; --pulb-face #ffffff; --pulb-focus #2563eb; --pulb-ink #111111; --pulb-red #e11d2e; --pulb-soft #6b6b6b. Treat these as the root colour tokens, one value per role, and name them to suit your code. Select it with the theme option set to "light". Keep every dimension, spacing value, state and motion from the brief unchanged, and keep text at 4.5:1 contrast or better on these surfaces. 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: A toggle button: Enter or Space joins or leaves; the count keeps ticking either way. Motion: Two rings every 2s from the dot, an equaliser while joined, a 0.2s hover shadow. Reduced motion stops the rings and holds the equaliser still. Accessibility: A native button with aria-pressed; the count is spelled out for screen readers; the motion is decorative. Responsive behavior: One fixed-height pill that never wraps its text. Touch: Nothing depends on hover. 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
A toggle button: Enter or Space joins or leaves; the count keeps ticking either way.
Motion
Two rings every 2s from the dot, an equaliser while joined, a 0.2s hover shadow. Reduced motion stops the rings and holds the equaliser still.
Accessibility
A native button with aria-pressed; the count is spelled out for screen readers; the motion is decorative.
Responsive
One fixed-height pill that never wraps its text.
On touch
Nothing depends on hover.

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