refactor(ui): R10 S4 — unify selected-paint into .pill/.is-current/.chip recipes

The ~14 hand-rolled "this is the selected/current/active one" idioms each
repeated the same `sel ? "bg-accent text-accent-fg border-accent" : "…"` inline
ternary, which had drifted. Three attribute-driven recipes in @layer components
now own that paint, keyed on the ARIA the control already carries: .pill
(aria-pressed segments/toggles), .is-current (aria-current nav/list items), and
.chip / .chip-solid (tag & filter tokens). The JSX just toggles the ARIA; the CSS
paints, so one control's selected look can't diverge from the next's. No
focus-visible in the recipes — the @layer base rule already rings every button/a.

Migrated 15 sites (Feed show/content, Channels tag filter, Sidebar or-and +
scope, PlexSidebar match, Tabs, SettingsPanel tab-rail, PlexPlaylistView layout
[soft], NavSidebar nav + settings, ActiveFilterChips, PlexSidebar RemovableChip,
ChannelTags, ChannelPicker). Deliberately left: PlexSidebar facet Chip and
PlexPlaylistView already covered; SavedViews row (paint split across two
elements), the scheme swatch (border-only on a coloured swatch), and
ChannelPicker's option rows (text-only selection) — noted for a follow-up.

frontend/src/components/ActiveFilterChips.tsx

@@ -32,7 +32,7 @@ export default function ActiveFilterChips({
           onClick={f.remove}
           title={t("feed.chips.remove", { name: f.label })}
           aria-label={t("feed.chips.remove", { name: f.label })}
-          className="group inline-flex items-center gap-1 pl-2.5 pr-1.5 py-1 rounded-full border border-accent/40 bg-accent/10 text-accent text-xs hover:border-accent hover:bg-accent/20 transition"
+          className="chip group pl-2.5 pr-1.5 py-1 text-xs hover:border-accent hover:bg-accent/20 transition"
         >
           <span className="max-w-56 truncate">{f.label}</span>
           <X className="w-3 h-3 shrink-0 opacity-60 group-hover:opacity-100" />

frontend/src/components/ChannelPicker.tsx

@@ -52,7 +52,7 @@ export default function ChannelPicker({
               key={id}
               onClick={() => toggle(id)}
               title={t("sidebar.channelRemove", { name: nameOf(id) })}
-              className="inline-flex items-center gap-1 max-w-full pl-2.5 pr-1.5 py-1 rounded-full bg-accent text-accent-fg text-xs shadow-xs hover:opacity-90 transition"
+              className="chip-solid inline-flex items-center gap-1 max-w-full pl-2.5 pr-1.5 py-1 rounded-full text-xs shadow-xs hover:opacity-90 transition"
             >
               <span className="truncate">{nameOf(id)}</span>
               <X className="w-3 h-3 shrink-0" />

frontend/src/components/ChannelTags.tsx

@@ -22,8 +22,7 @@ interface TagChipProps {
 }
 
 function TagChip({ tag, onClick, title }: TagChipProps) {
-  const cls =
-    "shrink-0 text-3xs px-1.5 py-0.5 rounded-full bg-accent text-accent-fg border border-accent max-w-36 truncate";
+  const cls = "chip-solid shrink-0 text-3xs px-1.5 py-0.5 rounded-full border max-w-36 truncate";
   return onClick ? (
     <button
       type="button"

frontend/src/components/Channels.tsx

@@ -667,11 +667,7 @@ export default function Channels() {
                         setTagFilter((f) => (active ? f.filter((x) => x !== tg.id) : [...f, tg.id]))
                       }
                       aria-pressed={active}
-                      className={`text-xs px-2 py-1 rounded-full border transition ${
-                        active
-                          ? "bg-accent text-accent-fg border-accent"
-                          : "bg-card border-border text-muted hover:text-fg hover:border-accent"
-                      }`}
+                      className="pill text-xs px-2 py-1 rounded-full border"
                     >
                       {tg.name}
                     </button>

frontend/src/components/Feed.tsx

@@ -557,11 +557,7 @@ export default function Feed({
             data-testid={`feed-show-${id}`}
             onClick={() => setFilters({ ...filters, show: id })}
             aria-pressed={filters.show === id}
-            className={`text-xs px-3 py-1.5 rounded-full border transition ${
-              filters.show === id
-                ? "bg-accent text-accent-fg border-accent"
-                : "border-border text-muted hover:text-fg hover:border-accent"
-            }`}
+            className="pill text-xs px-3 py-1.5 rounded-full border"
           >
             {t("sidebar.show." + id)}
           </button>
@@ -575,11 +571,7 @@ export default function Feed({
               data-testid={`feed-content-${c.key}`}
               onClick={() => setFilters({ ...filters, [c.key]: !on })}
               aria-pressed={on}
-              className={`text-xs px-3 py-1.5 rounded-full border transition ${
-                on
-                  ? "bg-accent text-accent-fg border-accent"
-                  : "border-border text-muted hover:text-fg hover:border-accent"
-              }`}
+              className="pill text-xs px-3 py-1.5 rounded-full border"
             >
               {t(c.label)}
             </button>

frontend/src/components/NavSidebar.tsx

@@ -193,9 +193,7 @@ export default function NavSidebar({
         onClick={() => setPage(p)}
         title={slim ? label : undefined}
         aria-current={active ? "page" : undefined}
-        className={`${rowBase} ${slim ? "justify-center px-0" : ""} relative ${
-          active ? "bg-accent text-accent-fg" : "text-muted hover:text-fg hover:bg-card"
-        }`}
+        className={`${rowBase} ${slim ? "justify-center px-0" : ""} relative is-current`}
       >
         <span className="relative shrink-0">
           <Icon className="w-4.5 h-4.5" />
@@ -308,11 +306,7 @@ export default function NavSidebar({
             onClick={() => setPage("settings")}
             title={slim ? t("header.account.settings") : undefined}
             aria-current={page === "settings" ? "page" : undefined}
-            className={`${rowBase} ${slim ? "justify-center px-0" : ""} ${
-              page === "settings"
-                ? "bg-accent text-accent-fg"
-                : "text-muted hover:text-fg hover:bg-card"
-            }`}
+            className={`${rowBase} ${slim ? "justify-center px-0" : ""} is-current`}
           >
             <Settings className="w-4.5 h-4.5 shrink-0" />
             {!slim && <span className="truncate">{t("header.account.settings")}</span>}

frontend/src/components/PlexPlaylistView.tsx

@@ -505,9 +505,8 @@ export default function PlexPlaylistView({
       title={label}
       aria-label={label}
       aria-pressed={layout === v}
-      className={`rounded-lg p-2 text-sm transition ${
-        layout === v ? "bg-accent/15 text-accent" : "glass-card glass-hover text-muted"
-      }`}
+      data-soft="true"
+      className={`pill rounded-lg p-2 text-sm ${layout === v ? "" : "glass-card glass-hover text-muted"}`}
     >
       {icon}
     </button>

frontend/src/components/PlexSidebar.tsx

@@ -59,9 +59,7 @@ function MatchToggle({
             key={m}
             onClick={() => onChange(m)}
             aria-pressed={mode === m}
-            className={`rounded-full px-2 py-0.5 transition ${
-              mode === m ? "bg-accent text-accent-fg" : "text-muted hover:text-fg"
-            }`}
+            className="pill rounded-full px-2 py-0.5"
           >
             {t(`plex.filter.match.${m}`)}
           </button>
@@ -518,7 +516,7 @@ function Chip({
 
 function RemovableChip({ label, onRemove }: { label: string; onRemove: () => void }) {
   return (
-    <span className="inline-flex items-center gap-1 rounded-full bg-accent/15 text-accent px-2 py-1 text-xs">
+    <span className="chip px-2 py-1 text-xs">
       <span className="truncate max-w-36">{label}</span>
       <button onClick={onRemove} className="hover:opacity-70" aria-label="remove">
         <X className="w-3 h-3" />

frontend/src/components/SettingsPanel.tsx

@@ -69,10 +69,9 @@ export default function SettingsPanel() {
                   key={tabItem.id}
                   data-testid={`settings-tab-${tabItem.id}`}
                   onClick={() => setTab(tabItem.id)}
-                  className={`flex items-center gap-2 px-3 py-2 rounded-lg text-sm text-left transition ${
-                    active
-                      ? "bg-accent text-accent-fg font-medium shadow-md shadow-accent/20"
-                      : "text-muted hover:text-fg hover:bg-card/60"
+                  aria-pressed={active}
+                  className={`pill flex items-center gap-2 px-3 py-2 rounded-lg text-sm text-left ${
+                    active ? "font-medium shadow-md shadow-accent/20" : "hover:bg-card/60"
                   }`}
                 >
                   <tabItem.icon className="w-4 h-4 shrink-0" />

frontend/src/components/Sidebar.tsx

@@ -281,11 +281,7 @@ export default function Sidebar({
                     key={m}
                     onClick={() => setFilters({ ...filters, tagMode: m })}
                     aria-pressed={filters.tagMode === m}
-                    className={`px-2 py-0.5 rounded-full transition ${
-                      filters.tagMode === m
-                        ? "bg-accent text-accent-fg"
-                        : "text-muted hover:text-fg"
-                    }`}
+                    className="pill px-2 py-0.5 rounded-full"
                   >
                     {m === "or" ? t("sidebar.any") : t("sidebar.all")}
                   </button>
@@ -392,9 +388,7 @@ export default function Sidebar({
             onClick={() => setFilters({ ...filters, scope: s })}
             title={t("header.scope." + s + "Tip")}
             aria-pressed={filters.scope === s}
-            className={`flex-1 inline-flex items-center justify-center gap-1 px-2.5 py-1 rounded-full transition ${
-              filters.scope === s ? "bg-accent text-accent-fg" : "text-muted hover:text-fg"
-            }`}
+            className="pill flex-1 inline-flex items-center justify-center gap-1 px-2.5 py-1 rounded-full"
           >
             {s === "my" ? <User className="w-3.5 h-3.5" /> : <Library className="w-3.5 h-3.5" />}
             <span>{t("header.scope." + s)}</span>

frontend/src/components/Tabs.tsx

@@ -31,10 +31,9 @@ export default function Tabs({
           <button
             key={tb.id}
             onClick={() => onChange(tb.id)}
-            className={`inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-sm transition ${
-              on
-                ? "bg-accent text-accent-fg font-medium shadow-md shadow-accent/20"
-                : "text-muted hover:text-fg hover:bg-card/60"
+            aria-pressed={on}
+            className={`pill inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-sm ${
+              on ? "font-medium shadow-md shadow-accent/20" : "hover:bg-card/60"
             }`}
           >
             {tb.label}