swarm-ui: fix nav underline gap argus caught in round 2
The previous fix put both the touch-target min-height and the active-state border-bottom on the same <a>: centering the text within a 2.75em box pushed the border ~0.7em away from it, a real visible regression argus caught by actually rendering the CSS rather than reasoning about the box model abstractly. Split the two concerns onto two elements: the <a> (.shell-nav-link) owns the full-height tappable box, an inner <span> (.shell-nav-link-text) wrapping just the label owns the underline, so the indicator stays directly under the text regardless of the tappable box's height. Verified: tsc clean, build succeeds, screenshotted close-up (600x100) and at 320px — underline sits flush under the text in both, no gap.
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2 changed files with 22 additions and 11 deletions
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@ -28,25 +28,32 @@
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flex-wrap: wrap;
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flex-wrap: wrap;
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gap: 1em;
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gap: 1em;
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}
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}
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/* `display: flex` + `min-height` rather than more vertical padding: a
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/* Touch target and active-state underline are deliberately on two
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link's own height is text-line-height, and padding alone would have
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different elements. An earlier version put both `min-height: 2.75em`
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pushed the border-bottom indicator away from the text to hit 2.75em
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and `border-bottom` on the same box: centering the text within a
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— flex centres the text within the full-height box instead, so the
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2.75em box pushes a bottom-edge border ~0.7em away from the text,
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indicator still sits directly under it. Same 2.75em (~44px, WCAG
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which argus caught by actually rendering it — a real visual
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2.5.5) floor as the rest of the shared kit — this is the primary
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regression, not just a touch-target win. So: `.shell-nav-link` (the
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nav, the single most-clicked/tapped element in the whole shell, so
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`<a>`) owns the full-height tappable box (same 2.75em / ~44px WCAG
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it gets the floor same as everything else, not a smaller one. */
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2.5.5 floor as the rest of the shared kit — this is the primary nav,
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the single most-clicked/tapped element in the whole shell), and
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`.shell-nav-link-text` (an inner span hugging just the text) owns
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the underline, so the indicator stays directly under the label
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regardless of how tall the tappable box around it is. */
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.shell-nav-link {
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.shell-nav-link {
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display: flex;
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display: flex;
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align-items: center;
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align-items: center;
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min-height: 2.75em;
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min-height: 2.75em;
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color: var(--muted);
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color: var(--muted);
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text-decoration: none;
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text-decoration: none;
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border-bottom: 2px solid transparent;
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}
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}
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.shell-nav-link:hover {
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.shell-nav-link:hover {
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color: var(--fg);
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color: var(--fg);
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}
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}
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.shell-nav-link-text {
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padding-bottom: 0.25em;
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border-bottom: 2px solid transparent;
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}
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.shell-nav-link-active {
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.shell-nav-link-active {
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color: var(--fg);
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color: var(--fg);
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border-bottom-color: var(--purple);
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border-bottom-color: var(--purple);
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@ -34,8 +34,12 @@ const DEFAULT_BRAND = 'hyperhive swarm';
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function NavLink({ href, label }: { href: string; label: string }) {
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function NavLink({ href, label }: { href: string; label: string }) {
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const [active] = useRoute(href);
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const [active] = useRoute(href);
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return (
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return (
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<Link href={href} className={'shell-nav-link' + (active ? ' shell-nav-link-active' : '')}>
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<Link href={href} className="shell-nav-link">
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{label}
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{/* Touch target (min-height) lives on the <a> so the whole row is
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tappable; the active-state underline lives on this inner span
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so it hugs the text instead of sitting at the bottom of the
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full-height box, ~0.7em away from it. */}
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<span class={'shell-nav-link-text' + (active ? ' shell-nav-link-active' : '')}>{label}</span>
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</Link>
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</Link>
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);
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);
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}
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}
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