Radial hover effect as a ready Button component. Pure CSS with ACSS colour tokens: the Tone prop picks the palette preset (primary, dark, light, accent, success, warning, danger, neutral), and every hover behaviour is a prop: Hover (none, subtle, normal, bold) scales the movement, Hover speed (fast, normal, slow) scales every transition, Hover color picks the fill colour (ink, accent, success, danger, dark). More props: Label, URL, Icon (none, arrow, plus, download, external), Size (s, m, l), Shape (pill, rounded, square), Text case, Disabled. Hover effects also run on keyboard focus, focus rings are always visible, the target is at least 36 to 44px tall, aria-disabled is supported and reduced-motion users get the end state without animation. A short script only registers the @keyframes (Etch paste strips them). Section options (data attributes on the section): data-theme (light|dark), data-align (start|center|end). Adapted from the MIT-licensed CSS Button Library by Colorion (animatedbuttons.colorion.co).