diff --git a/CLAUDE.md b/CLAUDE.md
index 2c5da3bb..a0f4310c 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -96,6 +96,7 @@ CQRS, a repository/DI framework, a router library, a generic CRUD-router factory
 | FE keyboard shortcut                 | a row in `lib/keymap.ts` + `dispatch()`                                                                                 | a private `keydown` listener with its own key literals                               |
 | FE list/grid keys                    | `NavGrid`/`keyboardNav` + `navItemAttrs` + `data-nav-open`                                                              | a private arrow-key / roving-tabindex handler                                        |
 | FE view push (history)               | `rememberNavPosition()` right before `history.pushState`                                                                | a push that forgets: Back strands focus on `<body>`                                  |
+| FE text field / checkbox / slider    | `ui/Input` · `Textarea` · `InnerInput` in a `fieldClass` frame · `Checkbox`/`CheckRow` · `Slider`                       | a raw `<input>`/`<textarea>` anywhere but those primitives (lint-enforced)           |
 | FE control                           | `SegmentedToggle`; a long or user's list: `FilterSelect`                                                                | a native `<select>` (lint-enforced)                                                  |
 | FE loading/empty/error               | `QueryState` / `StateMessage`                                                                                           | ad-hoc conditionals                                                                  |
 | FE failed write                      | `meta.failTitle`, else `notifyActionError(err, title)`                                                                  | a bare `catch {}` or `notify()` with no error attached                               |
diff --git a/docs/DESIGN.md b/docs/DESIGN.md
index a4ce868c..b8c8c232 100644
--- a/docs/DESIGN.md
+++ b/docs/DESIGN.md
@@ -111,19 +111,31 @@ The chosen rendering of each rule is in the lab under "Decided". The primitives
   buttons 1.75rem / 2rem. A toolbar's search pill, dropdown trigger, `sm` button and small icon button are
   the same 28, so the row lines up. Nothing goes under 24 (WCAG 2.5.8); touch grows it to 44 (A3).
 - **Icon buttons (A2):** two sizes (28 / 32), r8: the smaller in rows and dense toolbars, the larger on its own. On a
-  picture, a round, dark translucent button, readable on any thumbnail. Round means "on media" only: a text
+  picture, a round, dark translucent button, readable on any thumbnail. Round means "floats over something":
+  on media, or the one floating button over the page (back to top, a 48 glass circle, the FAB). A text
   button on a picture is a pill (the card's Resume in the accent, From the start dark translucent, C5), and
   the one 48px glyph is the Play in the middle of a not-started card (C5).
 - **Touch (A3):** on a coarse pointer every control primitive (`Button`, `SegmentedToggle`, `FilterSelect`,
   `Tabs`, `Switch`, chips, the nav rail) grows to 2.75rem (44px) through one token, as a real box. Mouse
   sizes don't change. [HIG, WCAG 2.5.8]
-- **Input (A4):** one bordered input primitive. The edge is `color-mix(in srgb, var(--fg) 55%, var(--bg))`,
-  ≥ 3:1 against the page in every scheme and mode. A form field is r8 at the `md` height (32); a toolbar search
-  is a pill at the `sm` height (28). Text is 1rem on a coarse pointer. [WCAG 1.4.11]
-- **Dropdown trigger (A5):** a pill in a toolbar (where the pill means "a filter or a choice"), r8 in a form
-  (it lines up with the inputs).
-- **Checkbox, switch, slider (A6):** the browser's own controls tinted with `accent-color`; the whole
-  labelled row is the 44px target. Keyboard, screen reader and forced-colours support come from the browser.
+- **Input (A4):** one bordered input primitive, `ui/Input` (`Textarea` for several lines; a frame that also
+  holds an icon or chips is painted with `fieldClass` around an `InnerInput`). The edge is
+  `color-mix(in srgb, var(--fg) 55%, var(--bg))`, ≥ 3:1 against the page in every scheme and mode; focus
+  turns it into a 2px accent edge, `invalid` into the danger edge. A form field is r8 at the `md` height
+  (32); a toolbar search, a field in a popover or an inline rename is `sm` (28), the toolbar search a pill;
+  a field in a table row or the pager `xs` (24); an inline rename of a page title keeps the heading's type
+  (`heading`). Text is 1rem and the box 44 on a coarse pointer. [WCAG 1.4.11]
+- **Dropdown trigger (A5):** `ui/SelectTrigger`. A pill in a toolbar (where the pill means "a filter or a
+  choice"), r8 and full width in a form (it lines up with the inputs). Open is the accent edge and the
+  chevron turned over.
+- **Checkbox, switch, slider (A6):** the browser's own controls tinted with `accent-color` (`Checkbox`,
+  `CheckRow`, `Slider`, `ColorInput`); the whole labelled row is the 44px target. Keyboard, screen reader and
+  forced-colours support come from the browser. The switch stays `form`'s `Switch`: no browser has a native
+  one yet. A raw `<input>` or `<textarea>` outside those primitives is a lint error (a hidden file picker
+  passes).
+- **In-place editing:** a field that replaces its trigger (a title rename, the priority number) hands the
+  focus back to that trigger when Enter or Escape closes it (`useReturnFocus`), never to `<body>`.
+  [WCAG 2.4.3]
 
 Also in force:
 
@@ -295,6 +307,7 @@ Wherever there is text, the user can select it and copy it, and no click action
 
 | Date       | Decision                    | Chosen                                                                                                                                                             | Over                                                                                                  | Why                                                                                                                                                                  |
 | ---------- | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| 2026-09-24 | Floating button             | Back to top: a round 48 glass FAB; "round" = floats over something (media or the page)                                                                             | A Material 3 rounded square; a labelled pill; the old 64 circle                                       | The common web convention for back to top; round tells it apart from every toolbar button; 64 was oversized                                                          |
 | 2026-09-24 | Device contract             | Tablet portrait + landscape and up; phones out                                                                                                                     | A 1024px floor with a "too small" message                                                             | Portrait tablet use is real, and the app already renders at 820 portrait                                                                                             |
 | 2026-09-24 | Card actions on touch       | Fewer visible, the rest in a "…" menu                                                                                                                              | 44px buttons that no longer fit the card                                                              | Six 44px targets need more width than a card has                                                                                                                     |
 | 2026-09-24 | Action placement            | One menu with several triggers, never gesture-only, a desktop background menu that mirrors the toolbar                                                             | Visible buttons for everything                                                                        | Fewer non-critical buttons on screen, without hiding any function                                                                                                    |
@@ -321,5 +334,6 @@ Wherever there is text, the user can select it and copy it, and no click action
 | 2026-09-24 | C5 Plex player controls     | The owner's lean set: no Stop / Restart / ±10 s buttons, Back by position, Next only with a next item, Resume + From the start on the card, touch double-tap ±10 s | Every control in one row (it ran off-screen below 1024); Back by a press counter; ±10 s keyboard-only | The row fits a portrait tablet; the decision to restart is made on the card; a tablet keeps the 10 s skip                                                            |
 | 2026-09-24 | Glass tuner                 | Retired; the schemes are the only colour choice                                                                                                                    | Keep it with ranges clamped to the rules                                                              | Free tuning is the drift the constitution exists to stop (owner)                                                                                                     |
 | 2026-09-24 | Matrix toned down           | Moss #86a05a at Midnight's lightness, near-neutral greys; every white-on-accent part → `--accent-fg`                                                               | The B2 lime #a3e635                                                                                   | The owner found the lime neon and tiring; it was the loudest accent (L 0.85, C 0.21), and fixed white parts sat on it at 1.5:1                                       |
+| 2026-09-24 | Field primitives            | `Input` / `Textarea` / `InnerInput` + `fieldClass`, `SelectTrigger`, the native controls; the lint rule "no raw `<input>`"                                         | `inputCls` and ~40 hand-styled boxes                                                                  | Six edges, four radii and two focus looks for one control; the ≥ 3:1 edge held nowhere                                                                               |
 | 2026-09-24 | Chip family                 | One `Chip` (filter / token / tag / suggest / ghost) + `DismissibleChip`; nothing under 24; the lint rule "no raw `<button>` outside ui/"                           | Five chip geometries in five files                                                                    | The applied-filter row, the tag cells, the year picker and the saved-view editor each drew their own chip; a one-letter tag was 21px wide                            |
 | 2026-09-24 | Button families             | `Button` / `IconButton` / `Pressable` / chips / `DragHandle`; `lg` 40 for a hero CTA; pills and a 48 Play on media (from C5)                                       | Every button hand-painted                                                                             | 268 hand-rolled buttons in 79 files drifted into as many looks; the ladder only holds if every button stands on it                                                   |
diff --git a/frontend/eslint.config.js b/frontend/eslint.config.js
index d67253e6..7dd5ccdc 100644
--- a/frontend/eslint.config.js
+++ b/frontend/eslint.config.js
@@ -100,8 +100,9 @@ const BUTTON_PRIMITIVES = new Set([
   "form.tsx", // Switch
   "PriorityStepper.tsx",
   "SortControl.tsx",
-  "FilterSelect.tsx", // the dropdown trigger (A5, S3c)
-  "Combobox.tsx", // the field's own chips and chevron (A4, S3c)
+  "SelectTrigger.tsx", // the dropdown trigger (A5)
+  "FilterSelect.tsx", // its option rows
+  "Combobox.tsx", // the field's own chips and chevron (A4)
 ]);
 const buttonPrimitive = {
   meta: {
@@ -124,6 +125,40 @@ const buttonPrimitive = {
     };
   },
 };
+// The same for a text field and the native checkbox / slider / colour well (docs/DESIGN.md A4, A6;
+// E28 S3c): ~100 hand-styled boxes carried six edges, four radii and two focus looks between them. A
+// file picker has no look (it is hidden behind a Button), so it passes.
+const INPUT_PRIMITIVES = new Set([
+  "Input.tsx",
+  "NativeControls.tsx",
+  "PriorityStepper.tsx", // the number box laid over the stepper's own face
+]);
+const inputPrimitive = {
+  meta: {
+    type: "problem",
+    messages: {
+      raw: "A raw <{{name}}> outside the field primitives: use ui/Input, Textarea or InnerInput (inside a fieldClass frame), or Checkbox / CheckRow / Slider / ColorInput.",
+    },
+  },
+  create(context) {
+    const path = context.filename.split("\\").join("/");
+    const file = path.slice(path.lastIndexOf("/") + 1);
+    if (path.includes("/src/components/ui/") && INPUT_PRIMITIVES.has(file)) return {};
+    return {
+      JSXOpeningElement(node) {
+        if (node.name.type !== "JSXIdentifier") return;
+        const name = node.name.name;
+        if (name !== "input" && name !== "textarea") return;
+        const type = node.attributes.find(
+          (a) => a.type === "JSXAttribute" && a.name.name === "type",
+        );
+        const v = type?.value?.type === "Literal" ? type.value.value : null;
+        if (name === "input" && (v === "file" || v === "hidden")) return;
+        context.report({ node, messageId: "raw", data: { name } });
+      },
+    };
+  },
+};
 // The words a screen reader or a tooltip says are user-facing text like any other, and the HU/EN
 // parity rule covers them too. Five `aria-label="remove"`-style literals survived every lane (the
 // Plex playlist rows, a filter chip, the player's reset) and a whole opt-in panel was English only —
@@ -200,6 +235,7 @@ const localRules = {
     "jsx-comment-text": jsxCommentText,
     "focus-safe-disabled": focusSafeDisabled,
     "button-primitive": buttonPrimitive,
+    "input-primitive": inputPrimitive,
     "literal-a11y-text": literalA11yText,
   },
 };
@@ -255,6 +291,7 @@ export default tseslint.config(
       "local/jsx-comment-text": "error",
       "local/focus-safe-disabled": "error",
       "local/button-primitive": "error",
+      "local/input-primitive": "error",
       "local/literal-a11y-text": "error",
       "local/sortable-a11y": "error",
       "react-refresh/only-export-components": ["warn", { allowConstantExport: true }],
@@ -418,6 +455,7 @@ export default tseslint.config(
       "local/literal-a11y-text": "off",
       // A test renders a raw button as a stand-in trigger or a focus target, not as product UI.
       "local/button-primitive": "off",
+      "local/input-primitive": "off",
     },
   },
   prettier,
diff --git a/frontend/src/components/AddToPlaylist.tsx b/frontend/src/components/AddToPlaylist.tsx
index c58459cb..95c59c33 100644
--- a/frontend/src/components/AddToPlaylist.tsx
+++ b/frontend/src/components/AddToPlaylist.tsx
@@ -10,6 +10,7 @@ import { playlistName } from "../lib/playlistName";
 import { PopoverItem, PopoverSurface } from "./ui/AnchoredPopover";
 import { useAnchoredPopover } from "./ui/anchoredPopoverHooks";
 import { IconButton } from "./ui/IconButton";
+import { Input } from "./ui/Input";
 
 // A small anchored menu for toggling a video's membership in the user's playlists, with inline
 // "new playlist" creation. Same shape as the channel tag editor (R8 S1's pilot): radio-style
@@ -154,7 +155,9 @@ export default function AddToPlaylist({
           </div>
           <div className="flex items-center gap-1.5 border-t border-border mt-1.5 pt-1.5">
             <Plus className="w-3.5 h-3.5 text-muted shrink-0" />
-            <input
+            <Input
+              className="flex-1"
+              size="sm"
               value={newName}
               onChange={(e) => setNewName(e.target.value)}
               onKeyDown={(e) => {
@@ -168,7 +171,6 @@ export default function AddToPlaylist({
                 }
               }}
               placeholder={t("playlists.newPlaylist")}
-              className="flex-1 min-w-0 bg-surface border border-border rounded-md px-2 py-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-accent/40"
             />
           </div>
         </div>
diff --git a/frontend/src/components/AdminLogs.tsx b/frontend/src/components/AdminLogs.tsx
index 2761050e..a8ea913e 100644
--- a/frontend/src/components/AdminLogs.tsx
+++ b/frontend/src/components/AdminLogs.tsx
@@ -1,3 +1,4 @@
+import clsx from "clsx";
 import { useEffect, useMemo, useRef, useState } from "react";
 import { useTranslation } from "react-i18next";
 import {
@@ -34,6 +35,8 @@ import FilterSelect from "./ui/FilterSelect";
 import { Section } from "./ui/form";
 import { LoadingState, StateMessage } from "./ui/QueryState";
 import { DismissibleChip } from "./ui/Chip";
+import { InnerInput } from "./ui/Input";
+import { fieldClass } from "./ui/fieldStyles";
 
 // Admin → Szervernapló: the server's stored log (`log_events`, E22.6). One list, newest first; a line
 // opens in place to its full record, and its request id / job id narrow the list to that request or
@@ -245,15 +248,19 @@ export default function AdminLogs() {
           className="overflow-hidden rounded-xl border border-border bg-bg"
         >
           <div className="flex flex-wrap items-center gap-2 border-b border-border p-2">
-            <label className="flex min-w-[12rem] flex-1 items-center gap-1.5 rounded-lg border border-border bg-card px-2 py-1 text-sm focus-within:border-accent">
+            <label
+              className={clsx(
+                fieldClass({ size: "sm", pill: true }),
+                "flex min-w-[12rem] flex-1 items-center gap-1.5",
+              )}
+            >
               <Search className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden />
-              <input
+              <InnerInput
                 type="search"
                 value={state.q}
                 onChange={(e) => update({ q: e.target.value.slice(0, 200) })}
                 placeholder={t("adminLogs.search")}
                 aria-label={t("adminLogs.search")}
-                className="min-w-0 flex-1 bg-transparent outline-none"
               />
             </label>
             <FilterChipGroup
diff --git a/frontend/src/components/AdminUsers.tsx b/frontend/src/components/AdminUsers.tsx
index 7ebb064c..59a8d225 100644
--- a/frontend/src/components/AdminUsers.tsx
+++ b/frontend/src/components/AdminUsers.tsx
@@ -44,6 +44,7 @@ import { PageToolbar } from "./ui/PageShell";
 import { useMe } from "../lib/useMe";
 import { notifyActionError, notifyKnownFailure } from "../lib/actionErrors";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 // Admin-only user & access management: roles, access requests (the Invite whitelist), and the
 // demo whitelist + reset. Each section is its own tab (persisted across reloads); the Access tab
@@ -687,12 +688,12 @@ function AdminInvites() {
         }}
         className="flex items-center gap-2 mt-3"
       >
-        <input
+        <Input
+          className="flex-1"
           type="email"
           value={newEmail}
           onChange={(e) => setNewEmail(e.target.value)}
           placeholder={t("settings.invites.addPlaceholder")}
-          className="flex-1 min-w-0 bg-surface border border-border rounded-xl px-3 py-2 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         <Button
           type="submit"
@@ -861,12 +862,12 @@ function AdminDemo() {
         }}
         className="flex items-center gap-2"
       >
-        <input
+        <Input
+          className="flex-1"
           type="email"
           value={newEmail}
           onChange={(e) => setNewEmail(e.target.value)}
           placeholder={t("settings.demo.addPlaceholder")}
-          className="flex-1 min-w-0 bg-surface border border-border rounded-xl px-3 py-2 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         <Button variant="glass" size="md" className="shrink-0" type="submit">
           <UserPlus className="w-4 h-4" /> {t("settings.demo.add")}
diff --git a/frontend/src/components/ChannelTags.tsx b/frontend/src/components/ChannelTags.tsx
index fc6ac571..14e50e61 100644
--- a/frontend/src/components/ChannelTags.tsx
+++ b/frontend/src/components/ChannelTags.tsx
@@ -10,6 +10,7 @@ import { chipLaneClass, useChipOverflowFit } from "../lib/useChipOverflowFit";
 import { IconButton } from "./ui/IconButton";
 import { Chip, DismissibleChip } from "./ui/Chip";
 import { chipClass } from "./ui/chipStyles";
+import { Input } from "./ui/Input";
 
 // The channel tag surface, shared by the channel manager (table + cards) and the channel detail
 // page. Built on the R8 popover platform. Two design goals it fixes over the old inline TagsCell:
@@ -246,7 +247,9 @@ function TagEditorMenu({
         )}
       </div>
       <div className="mt-1 pt-1.5 border-t border-border flex items-center gap-1">
-        <input
+        <Input
+          className="flex-1"
+          size="sm"
           value={draft}
           onChange={(e) => setDraft(e.target.value)}
           onKeyDown={(e) => {
@@ -262,7 +265,6 @@ function TagEditorMenu({
           }}
           maxLength={64}
           placeholder={t("channels.tags.createPlaceholder")}
-          className="flex-1 min-w-0 bg-transparent text-xs px-2 py-1 rounded-md border border-border focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         <IconButton
           variant="outline"
diff --git a/frontend/src/components/ChatThread.tsx b/frontend/src/components/ChatThread.tsx
index 25500589..1e9c568d 100644
--- a/frontend/src/components/ChatThread.tsx
+++ b/frontend/src/components/ChatThread.tsx
@@ -13,6 +13,7 @@ import { notifyActionError } from "../lib/actionErrors";
 import { partnerPub, POLL_MS, refreshPartnerPub, useKeyState } from "../lib/messaging";
 import * as e2ee from "../lib/e2ee";
 import KeyGate from "./KeyGate";
+import { Textarea } from "./ui/Input";
 
 // The message list + composer for one conversation, shared by the full Messages page and the
 // floating dock window. Handles client-side decryption and encrypt-on-send; the surrounding
@@ -210,7 +211,8 @@ export default function ChatThread({
         </div>
       ) : (
         <div className="flex items-end gap-2 p-2 border-t border-border">
-          <textarea
+          <Textarea
+            className="flex-1 resize-none max-h-28"
             value={draft}
             onChange={(e) => setDraft(e.target.value)}
             onKeyDown={(e) => {
@@ -221,7 +223,6 @@ export default function ChatThread({
             }}
             rows={1}
             placeholder={t("messages.writePlaceholder")}
-            className="flex-1 resize-none max-h-28 bg-surface border border-border rounded-xl px-3 py-2 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
           />
           <IconButton
             label={t("messages.send")}
diff --git a/frontend/src/components/ConfigPanel.tsx b/frontend/src/components/ConfigPanel.tsx
index c38c012c..167cbda7 100644
--- a/frontend/src/components/ConfigPanel.tsx
+++ b/frontend/src/components/ConfigPanel.tsx
@@ -18,6 +18,8 @@ import { DraftSaveBar, type SaveState } from "./ui/DraftSaveBar";
 import { LS, useAccountPersistedState } from "../lib/storage";
 import { notifyActionError } from "../lib/actionErrors";
 import { Button } from "./ui/Button";
+import { CheckRow } from "./ui/NativeControls";
+import { Input } from "./ui/Input";
 
 // Admin Configuration page: edit DB-overridable operational settings (registry-driven from the
 // backend — adding a key there makes it appear here automatically). Edits are drafted and
@@ -283,22 +285,18 @@ export default function ConfigPanel() {
                     <p className="text-2xs text-muted mb-1.5">{t("config.plexPickLibraries")}</p>
                     <div className="flex flex-col gap-1.5">
                       {plexResult.sections.map((s) => (
-                        <label
+                        <CheckRow
                           key={s.key}
-                          className="inline-flex items-center gap-2 text-sm cursor-pointer"
+                          checked={plexLibs.length === 0 || plexLibs.includes(s.key)}
+                          onChange={() => togglePlexLib(s.key)}
+                          className="text-sm"
                         >
-                          <input
-                            type="checkbox"
-                            checked={plexLibs.length === 0 || plexLibs.includes(s.key)}
-                            onChange={() => togglePlexLib(s.key)}
-                            className="accent-accent"
-                          />
                           <span>{s.title}</span>
                           <span className="text-2xs text-muted">
                             {s.type === "movie" ? t("config.plexMovies") : t("config.plexShows")}
                             {s.count != null ? ` · ${s.count}` : ""}
                           </span>
-                        </label>
+                        </CheckRow>
                       ))}
                     </div>
                     <p className="text-2xs text-muted mt-2">{t("config.plexPickHint")}</p>
@@ -393,7 +391,8 @@ function Field({
         ) : item.type === "choice" ? (
           <ChoiceField item={item} label={label} value={value} onChange={onChange} />
         ) : (
-          <input
+          <Input
+            className="w-52"
             type={item.secret ? "password" : isNum ? "number" : "text"}
             value={value}
             disabled={secretDisabled || (item.secret && pendingSecretReset)}
@@ -402,7 +401,6 @@ function Field({
             max={isNum && item.max != null ? item.max : undefined}
             placeholder={item.secret ? "••••••••" : String(item.default ?? "")}
             aria-label={label}
-            className="w-52 bg-surface border border-border rounded-xl px-3 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40 disabled:opacity-50"
           />
         )}
         {showReset && !secretDisabled && (
diff --git a/frontend/src/components/DateFilterSelect.tsx b/frontend/src/components/DateFilterSelect.tsx
index 9516a33f..ddc039e7 100644
--- a/frontend/src/components/DateFilterSelect.tsx
+++ b/frontend/src/components/DateFilterSelect.tsx
@@ -1,12 +1,13 @@
 import { useLayoutEffect, useState } from "react";
 import { useTranslation } from "react-i18next";
-import { CalendarDays, Check, ChevronDown } from "lucide-react";
+import { CalendarDays, Check } from "lucide-react";
 import { PopoverItem, PopoverSurface } from "./ui/AnchoredPopover";
 import { useAnchoredPopover } from "./ui/anchoredPopoverHooks";
 import { type FeedFilters } from "../lib/api";
 import { deriveDateKey, selectDateChip, type DatePreset } from "../lib/dateFilter";
 import { Button } from "./ui/Button";
-import { Pressable } from "./ui/Pressable";
+import { SelectTrigger } from "./ui/SelectTrigger";
+import { Input } from "./ui/Input";
 
 // The feed rail's "Upload date" control: a single-select dropdown (the SortControl/FilterSelect pill,
 // but full-width for the rail) over "Any time" + the day presets + a "Custom range". Picking Custom
@@ -93,23 +94,18 @@ export default function DateFilterSelect({
     if (value !== "custom") setOpen(false); // Custom stays open to reveal the range fields
   };
 
-  const dateInputCls =
-    "bg-surface border border-border rounded-md px-2 py-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-accent/40";
-
   return (
     <>
-      <Pressable
+      <SelectTrigger
+        context="form"
+        open={open}
+        icon={<CalendarDays className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />}
         ref={pop.refs.setReference}
         {...pop.getReferenceProps()}
         aria-label={`${t("sidebar.datePresetLabel")}: ${summary}`}
-        className={`glass-card glass-hover flex w-full items-center gap-1.5 rounded-lg border px-2.5 py-1.5 text-sm transition ${
-          open ? "border-accent" : "border-border"
-        }`}
       >
-        <CalendarDays className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />
-        <span className="flex-1 truncate text-fg">{summary}</span>
-        <ChevronDown className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />
-      </Pressable>
+        {summary}
+      </SelectTrigger>
 
       <PopoverSurface
         popover={pop}
@@ -143,7 +139,8 @@ export default function DateFilterSelect({
           <div className="mt-1 flex flex-col gap-1.5 border-t border-border px-1 pt-2">
             <label className="flex items-center justify-between gap-2 text-xs">
               <span className="text-muted">{t("sidebar.from")}</span>
-              <input
+              <Input
+                size="sm"
                 type="date"
                 value={filters.dateFrom ?? ""}
                 onKeyDown={(e) => {
@@ -157,12 +154,12 @@ export default function DateFilterSelect({
                     year: undefined,
                   })
                 }
-                className={dateInputCls}
               />
             </label>
             <label className="flex items-center justify-between gap-2 text-xs">
               <span className="text-muted">{t("sidebar.to")}</span>
-              <input
+              <Input
+                size="sm"
                 type="date"
                 value={filters.dateTo ?? ""}
                 onKeyDown={(e) => {
@@ -176,7 +173,6 @@ export default function DateFilterSelect({
                     year: undefined,
                   })
                 }
-                className={dateInputCls}
               />
             </label>
             {(filters.dateFrom || filters.dateTo) && (
diff --git a/frontend/src/components/DebugRecorder.tsx b/frontend/src/components/DebugRecorder.tsx
index 178c6d25..529108dd 100644
--- a/frontend/src/components/DebugRecorder.tsx
+++ b/frontend/src/components/DebugRecorder.tsx
@@ -26,9 +26,9 @@ import { Button } from "./ui/Button";
 import Modal from "./ui/Modal";
 import { LoadingState, StateMessage } from "./ui/QueryState";
 import SegmentedToggle from "./ui/SegmentedToggle";
-import { inputCls } from "./ui/form";
 import IssueComposer from "./IssueComposer";
 import { useDebugRecording } from "./useDebugRecording";
+import { Input } from "./ui/Input";
 
 // The debug recorder (E16): Start → reproduce → Stop.
 //
@@ -308,14 +308,14 @@ function StepPrompt({ id, onDone }: { id: string; onDone: (label: string | null)
       <label htmlFor="debug-step-label" className="text-sm text-muted">
         {t("recorder.pill.stepPrompt", { n })}
       </label>
-      <input
+      <Input
+        className="w-full"
         id="debug-step-label"
         autoFocus
         value={label}
         onChange={(e) => setStepPrompt(e.target.value)}
         onKeyDown={onKeyDown}
         maxLength={200}
-        className={`${inputCls} w-full`}
       />
       <div className="flex items-center justify-between gap-2 text-xs text-muted">
         <span>{t("recorder.pill.stepHint")}</span>
diff --git a/frontend/src/components/DownloadCenter.tsx b/frontend/src/components/DownloadCenter.tsx
index 799f3a96..a1e90d79 100644
--- a/frontend/src/components/DownloadCenter.tsx
+++ b/frontend/src/components/DownloadCenter.tsx
@@ -37,13 +37,13 @@ import { api, type DownloadJob } from "../lib/api";
 import { notifyActionError } from "../lib/actionErrors";
 import { invalidateDownloads, quickShareLink } from "../lib/downloads";
 import { libraryRowActions, sharedRowActions } from "../lib/downloadActions";
-import { inputCls } from "./ui/form";
 import { Button } from "./ui/Button";
 import { IconButton } from "./ui/IconButton";
 import { DownloadRow, IconBtn, UsageBar } from "./downloadRow";
 import { MetaEditModal, ErrorModal } from "./downloadModals";
 import { AdminSystem } from "./downloadAdmin";
 import NavGrid from "./ui/NavGrid";
+import { Input } from "./ui/Input";
 
 export default function DownloadCenter() {
   const me = useMe();
@@ -189,13 +189,13 @@ export default function DownloadCenter() {
         {tab === "queue" && (
           <>
             <div className="flex gap-2 mb-4">
-              <input
+              <Input
+                className="w-full"
                 value={addUrl}
                 onChange={(e) => setAddUrl(e.target.value)}
                 onFocus={() => pasteFromClipboard()}
                 onKeyDown={(e) => e.key === "Enter" && addUrl.trim() && setAddSource(addUrl.trim())}
                 placeholder={t("downloads.page.addUrl")}
-                className={inputCls}
               />
               <IconButton
                 label={t("downloads.page.paste")}
diff --git a/frontend/src/components/DownloadDialog.tsx b/frontend/src/components/DownloadDialog.tsx
index dfdae699..bd428689 100644
--- a/frontend/src/components/DownloadDialog.tsx
+++ b/frontend/src/components/DownloadDialog.tsx
@@ -12,8 +12,8 @@ const ProfileEditor = lazy(() => import("./ProfileEditor"));
 import { notify } from "../lib/notifications";
 import { notifyActionError } from "../lib/actionErrors";
 import { navigateTo } from "../lib/nav";
-import { inputCls } from "./ui/form";
 import FilterSelect from "./ui/FilterSelect";
+import { Input } from "./ui/Input";
 
 // Preset picker shown when the user hits Download on a card / in the player, or adds a URL from
 // the Download Center. Enqueues via the API and points the user at the Download Center.
@@ -82,11 +82,11 @@ export default function DownloadDialog({
       </Button>
 
       <label className="block text-sm font-medium mb-1">{t("downloads.dialog.nameLabel")}</label>
-      <input
+      <Input
+        className="w-full mb-5"
         value={name}
         onChange={(e) => setName(e.target.value)}
         placeholder={t("downloads.dialog.namePlaceholder")}
-        className={`${inputCls} mb-5`}
       />
 
       <div className="flex justify-end gap-2">
diff --git a/frontend/src/components/IssueComposer.tsx b/frontend/src/components/IssueComposer.tsx
index ee0266d3..75906135 100644
--- a/frontend/src/components/IssueComposer.tsx
+++ b/frontend/src/components/IssueComposer.tsx
@@ -25,7 +25,8 @@ import { IconButton } from "./ui/IconButton";
 import Modal from "./ui/Modal";
 import { LoadingState, StateMessage } from "./ui/QueryState";
 import SegmentedToggle from "./ui/SegmentedToggle";
-import { inputCls } from "./ui/form";
+import { Textarea, Input } from "./ui/Input";
+import { Checkbox } from "./ui/NativeControls";
 
 // The issue composer (E16 S3, D4 A): one dialog — the draft on the left (title, description, the
 // steps drafted from the session, the environment), what goes with it on the right (the two logs,
@@ -472,28 +473,28 @@ function DraftFields({
         <label htmlFor="issue-title" className="text-sm text-muted">
           {t("recorder.composer.fieldTitle")}
         </label>
-        <input
+        <Input
+          className="w-full"
           id="issue-title"
           value={form.title}
           readOnly={readOnly}
           maxLength={200}
           placeholder={t("recorder.composer.titlePlaceholder")}
           onChange={(e) => edit((f) => ({ ...f, title: e.target.value }))}
-          className={inputCls}
         />
       </div>
       <div className="flex flex-col gap-1.5">
         <label htmlFor="issue-description" className="text-sm text-muted">
           {t("recorder.composer.description")}
         </label>
-        <textarea
+        <Textarea
+          className="w-full resize-y"
           id="issue-description"
           value={form.description}
           readOnly={readOnly}
           rows={4}
           placeholder={t("recorder.composer.descriptionPlaceholder")}
           onChange={(e) => edit((f) => ({ ...f, description: e.target.value }))}
-          className={`${inputCls} resize-y`}
         />
       </div>
       <fieldset className="flex flex-col gap-1.5 min-w-0">
@@ -507,13 +508,14 @@ function DraftFields({
               <span className="w-6 shrink-0 text-sm font-semibold text-accent tabular-nums">
                 {i + 1}.
               </span>
-              <input
+              <Input
+                className="flex-1"
+                size="sm"
                 aria-label={t("recorder.composer.stepLabel", { n: i + 1 })}
                 value={step.text}
                 readOnly={readOnly}
                 placeholder={t("recorder.composer.stepPlaceholder")}
                 onChange={(e) => setStep(i, { text: e.target.value })}
-                className="min-w-0 flex-1 bg-transparent text-sm outline-none focus-visible:ring-2 focus-visible:ring-accent/60 rounded px-1 py-1"
               />
               <span className="chip shrink-0 px-2 py-0.5 text-2xs">
                 {t(`recorder.composer.stepKind.${step.kind}`)}
@@ -764,8 +766,7 @@ function ReviewList({
                   off ? "opacity-50 line-through" : ""
                 }`}
               >
-                <input
-                  type="checkbox"
+                <Checkbox
                   checked={!off}
                   disabled={readOnly}
                   aria-label={t("recorder.composer.keepRow", {
diff --git a/frontend/src/components/KeyGate.tsx b/frontend/src/components/KeyGate.tsx
index 7b21ff9d..a72bc307 100644
--- a/frontend/src/components/KeyGate.tsx
+++ b/frontend/src/components/KeyGate.tsx
@@ -6,7 +6,7 @@ import { AlertTriangle, Lock, ShieldCheck } from "lucide-react";
 import { api, HttpError } from "../lib/api";
 import * as e2ee from "../lib/e2ee";
 import { Button } from "./ui/Button";
-import { inputCls } from "./ui/form";
+import { Input } from "./ui/Input";
 
 // Secure-messaging key gate: first-run setup (choose a passphrase) or unlock on this device.
 // Self-contained — on success it updates the shared e2ee unlock state, so any observing view
@@ -102,13 +102,13 @@ export default function KeyGate({ meId, compact = false }: { meId: number; compa
         </div>
         <p className="text-sm text-muted">{t("messages.resetWarn")}</p>
         {hasPassword && (
-          <input
+          <Input
+            className="w-full"
             type="password"
             autoComplete="current-password"
             value={curPass}
             onChange={(e) => setCurPass(e.target.value)}
             placeholder={t("messages.resetCurrentPass")}
-            className={inputCls}
           />
         )}
         {err && (
@@ -145,21 +145,21 @@ export default function KeyGate({ meId, compact = false }: { meId: number; compa
           {configured ? t("messages.unlockBody") : t("messages.setupBody")}
         </p>
       )}
-      <input
+      <Input
+        className="w-full"
         type="password"
         value={pass}
         onChange={(e) => setPass(e.target.value)}
         onKeyDown={(e) => e.key === "Enter" && configured && submit()}
         placeholder={t("messages.passphrase")}
-        className={inputCls}
       />
       {!configured && (
-        <input
+        <Input
+          className="w-full"
           type="password"
           value={confirm}
           onChange={(e) => setConfirm(e.target.value)}
           placeholder={t("messages.passphraseConfirm")}
-          className={inputCls}
         />
       )}
       {err && (
diff --git a/frontend/src/components/Messages.tsx b/frontend/src/components/Messages.tsx
index c08d9366..ec44a525 100644
--- a/frontend/src/components/Messages.tsx
+++ b/frontend/src/components/Messages.tsx
@@ -15,11 +15,11 @@ import { openChat } from "../lib/chatDock";
 import * as e2ee from "../lib/e2ee";
 import Avatar from "./ui/Avatar";
 import KeyGate from "./KeyGate";
-import { inputCls } from "./ui/form";
 import ChatThread from "./ChatThread";
 import NavGrid from "./ui/NavGrid";
 import { navItemAttrs } from "../lib/listNav";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 type View =
   | "list"
@@ -235,11 +235,11 @@ function Directory({ onPick, onBack }: { onPick: (u: MessageUser) => void; onBac
         </IconButton>
         <div className="text-xs uppercase tracking-wide text-muted">{t("messages.newTitle")}</div>
       </div>
-      <input
+      <Input
+        className="w-full"
         value={filter}
         onChange={(e) => setFilter(e.target.value)}
         placeholder={t("messages.searchPeople")}
-        className={inputCls}
       />
       {q.isError && !q.data ? (
         <StateMessage tone="error" onRetry={() => q.refetch()}>
diff --git a/frontend/src/components/MyLogViewer.tsx b/frontend/src/components/MyLogViewer.tsx
index 3ad93844..60033068 100644
--- a/frontend/src/components/MyLogViewer.tsx
+++ b/frontend/src/components/MyLogViewer.tsx
@@ -1,3 +1,4 @@
+import clsx from "clsx";
 import { useEffect, useMemo, useState } from "react";
 import { useTranslation } from "react-i18next";
 import { Copy, Search } from "lucide-react";
@@ -16,6 +17,8 @@ import LogLine from "./LogLine";
 import NavGrid from "./ui/NavGrid";
 import { Button } from "./ui/Button";
 import FilterChipGroup from "./ui/FilterChipGroup";
+import { InnerInput } from "./ui/Input";
+import { fieldClass } from "./ui/fieldStyles";
 
 // Rows rendered at once. The ring holds up to 2000 events; drawing all of them on every new event
 // would make the settings page the slowest thing in the app while it is watching the app.
@@ -123,15 +126,19 @@ export default function MyLogViewer() {
     <div data-testid="my-log" className="overflow-hidden rounded-xl border border-border bg-bg">
       <p className="px-3 pt-2 text-xs text-muted">{t("settings.myLog.hint")}</p>
       <div className="flex flex-wrap items-center gap-2 border-b border-border p-2">
-        <label className="flex min-w-[10rem] flex-1 items-center gap-1.5 rounded-lg border border-border bg-card px-2 py-1 text-sm focus-within:border-accent">
+        <label
+          className={clsx(
+            fieldClass({ size: "sm", pill: true }),
+            "flex min-w-[10rem] flex-1 items-center gap-1.5",
+          )}
+        >
           <Search className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden />
-          <input
+          <InnerInput
             type="search"
             value={query}
             onChange={(e) => setQuery(e.target.value)}
             placeholder={t("settings.myLog.search")}
             aria-label={t("settings.myLog.search")}
-            className="min-w-0 flex-1 bg-transparent outline-none"
           />
         </label>
         <FilterChipGroup
diff --git a/frontend/src/components/PersonalViewsModal.tsx b/frontend/src/components/PersonalViewsModal.tsx
index 0cba1667..996349fc 100644
--- a/frontend/src/components/PersonalViewsModal.tsx
+++ b/frontend/src/components/PersonalViewsModal.tsx
@@ -24,6 +24,7 @@ import { useSortableA11y, useSortableItem } from "./ui/sortableA11y";
 import { DragHandle } from "./ui/DragHandle";
 import { Pressable } from "./ui/Pressable";
 import { DismissibleChip } from "./ui/Chip";
+import { Input } from "./ui/Input";
 
 // Master–detail manager for saved ("personal") views: the left column lists the views (drag to
 // reorder) plus a "save the current filters" input; the right column shows the selected view's name
@@ -201,12 +202,12 @@ export default function PersonalViewsModal() {
             </DndContext>
           </div>
           <div className="mt-2 flex items-center gap-1.5 border-t border-border/60 pt-2">
-            <input
+            <Input
+              className="flex-1"
               value={createName}
               onChange={(e) => setCreateName(e.target.value)}
               onKeyDown={(e) => e.key === "Enter" && onCreate()}
               placeholder={t("views.namePlaceholder")}
-              className="min-w-0 flex-1 rounded-lg border border-border bg-surface px-2 py-1.5 text-sm focus:border-accent focus:outline-hidden focus:ring-2 focus:ring-accent/30"
             />
             <IconButton
               label={t("views.save")}
@@ -224,12 +225,12 @@ export default function PersonalViewsModal() {
         {selected ? (
           <div className="flex flex-col gap-3">
             <div className="flex items-center gap-1.5">
-              <input
+              <Input
+                className="flex-1 font-medium"
                 value={nameDraft}
                 onChange={(e) => setNameDraft(e.target.value)}
                 onKeyDown={(e) => e.key === "Enter" && void onRename()}
                 onBlur={() => void onRename()}
-                className="min-w-0 flex-1 rounded-lg border border-border bg-surface px-3 py-2 text-sm font-medium focus:border-accent focus:outline-hidden focus:ring-2 focus:ring-accent/30"
               />
               <IconButton
                 variant="outline"
diff --git a/frontend/src/components/Playlists.tsx b/frontend/src/components/Playlists.tsx
index 9961090b..929e88a5 100644
--- a/frontend/src/components/Playlists.tsx
+++ b/frontend/src/components/Playlists.tsx
@@ -68,6 +68,9 @@ import { filterRows, isActive, type Column, type FilterMap } from "../lib/tableC
 import { GRIP_KEY, playlistColumns } from "./playlistColumns";
 import { useSortableA11y, useSortableItem } from "./ui/sortableA11y";
 import { DragHandle } from "./ui/DragHandle";
+import { Input } from "./ui/Input";
+import { CheckRow } from "./ui/NativeControls";
+import { useReturnFocus } from "./ui/useReturnFocus";
 
 // The playlist detail is a HYBRID table (E4 S4): real sortable/filterable column headers over a
 // body that is still a drag-reorderable @dnd-kit list.
@@ -170,6 +173,7 @@ export default function Playlists() {
   const confirm = useConfirm();
   const plActions = usePlaylistActions();
   const [renaming, setRenaming] = useState(false);
+  const renameFocus = useReturnFocus(renaming);
   const [renameValue, setRenameValue] = useState("");
   // The stored order is undoable: drag and "save this order" both go through `order.set`, so each
   // is reversible (buttons + Ctrl+Z/Y). onApply persists the new order to the server.
@@ -869,23 +873,31 @@ export default function Playlists() {
               <div className="min-w-0 flex-1">
                 <div className="flex items-center gap-2 min-w-0">
                   {renaming ? (
-                    <input
+                    <Input
+                      className="flex-1 text-lg font-semibold"
+                      size="heading"
                       autoFocus
                       value={renameValue}
                       onChange={(e) => setRenameValue(e.target.value)}
                       onBlur={saveRename}
                       onKeyDown={(e) => {
-                        if (e.key === "Enter") saveRename();
-                        if (e.key === "Escape") setRenaming(false);
+                        if (e.key === "Enter") {
+                          renameFocus.arm();
+                          saveRename();
+                        }
+                        if (e.key === "Escape") {
+                          renameFocus.arm();
+                          setRenaming(false);
+                        }
                       }}
                       aria-label={t("playlists.rename")}
-                      className="min-w-0 flex-1 text-lg font-semibold bg-surface border border-border rounded-md px-2 py-0.5 focus:outline-hidden focus:ring-2 focus:ring-accent/40"
                     />
                   ) : (
                     <>
                       <h2 className="text-lg font-semibold truncate">{plName(detail)}</h2>
                       {editable && (
                         <IconButton
+                          ref={renameFocus.target}
                           onClick={() => {
                             setRenameValue(detail.name);
                             setRenaming(true);
@@ -974,15 +986,13 @@ export default function Playlists() {
                       <span aria-hidden="true" className="text-xs text-muted/40">
                         ·
                       </span>
-                      <label className="inline-flex items-center gap-1.5 text-xs text-muted cursor-pointer select-none">
-                        <input
-                          type="checkbox"
-                          checked={groupBy}
-                          onChange={(e) => setGroupBy(e.target.checked)}
-                          className="accent-accent"
-                        />
+                      <CheckRow
+                        checked={groupBy}
+                        onChange={setGroupBy}
+                        className="text-xs text-muted"
+                      >
                         {t("playlists.groupByChannel")}
-                      </label>
+                      </CheckRow>
                       {viewActive && (
                         <Button
                           variant="link-muted"
diff --git a/frontend/src/components/PlaylistsRail.tsx b/frontend/src/components/PlaylistsRail.tsx
index 817cd557..137a5d68 100644
--- a/frontend/src/components/PlaylistsRail.tsx
+++ b/frontend/src/components/PlaylistsRail.tsx
@@ -25,6 +25,7 @@ import { usePlaylistActions } from "./usePlaylistActions";
 import PlaylistLimitsHint from "./PlaylistLimitsHint";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 type PlSort = {
   key: "custom" | "name" | "count" | "duration" | "recent";
@@ -276,12 +277,13 @@ export default function PlaylistsRail({
             className="flex items-center gap-1.5"
           >
             <Plus className="w-4 h-4 text-muted shrink-0" />
-            <input
+            <Input
+              className="flex-1"
+              size="sm"
               value={newName}
               onChange={(e) => setNewName(e.target.value)}
               placeholder={t("playlists.newPlaylist")}
               disabled={!canWrite}
-              className="flex-1 min-w-0 bg-surface border border-border rounded-md px-2 py-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-accent/40 disabled:opacity-50"
             />
           </form>
         </div>
@@ -322,7 +324,9 @@ export default function PlaylistsRail({
                       <img src={pl.cover_thumbnail} alt="" className="w-full h-full object-cover" />
                     )}
                   </div>
-                  <input
+                  <Input
+                    className="flex-1"
+                    size="sm"
                     ref={renameInputRef}
                     value={renameValue}
                     onChange={(e) => setRenameValue(e.target.value)}
@@ -339,7 +343,6 @@ export default function PlaylistsRail({
                       }
                     }}
                     aria-label={t("playlists.rename")}
-                    className="flex-1 min-w-0 bg-surface border border-border rounded-md px-2 py-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-accent/40"
                   />
                 </div>
               ) : (
diff --git a/frontend/src/components/PlexCollectionEditor.tsx b/frontend/src/components/PlexCollectionEditor.tsx
index b20950e4..54317ed9 100644
--- a/frontend/src/components/PlexCollectionEditor.tsx
+++ b/frontend/src/components/PlexCollectionEditor.tsx
@@ -10,6 +10,7 @@ import { Button } from "./ui/Button";
 import Modal from "./ui/Modal";
 import { useConfirm } from "./confirmContext";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 // Admin-only "manage this movie's collections" dialog (Collections P2). Lists the library's EDITABLE
 // collections with an in/out toggle (add/remove the movie, written back to Plex), plus a field to
@@ -144,12 +145,12 @@ export default function PlexCollectionEditor({
     <Modal title={t("plex.collEditor.title", { title: item.title })} onClose={onClose}>
       {/* Create new */}
       <div className="mb-3 flex gap-2">
-        <input
+        <Input
+          className="flex-1"
           value={newName}
           onChange={(e) => setNewName(e.target.value)}
           onKeyDown={(e) => e.key === "Enter" && createNew()}
           placeholder={t("plex.collEditor.newPlaceholder")}
-          className="glass-card min-w-0 flex-1 rounded-lg px-3 py-2 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         <Button
           variant="glass"
@@ -165,11 +166,11 @@ export default function PlexCollectionEditor({
 
       {/* Filter */}
       {editable.length > 6 && (
-        <input
+        <Input
+          className="mb-2 w-full"
           value={q}
           onChange={(e) => setQ(e.target.value)}
           placeholder={t("plex.collEditor.search")}
-          className="glass-card mb-2 w-full rounded-lg px-3 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
       )}
 
diff --git a/frontend/src/components/PlexCollectionView.tsx b/frontend/src/components/PlexCollectionView.tsx
index 634129b2..be3711e7 100644
--- a/frontend/src/components/PlexCollectionView.tsx
+++ b/frontend/src/components/PlexCollectionView.tsx
@@ -23,6 +23,8 @@ import { LoadingState, StateMessage } from "./ui/QueryState";
 import NavGrid from "./ui/NavGrid";
 import { Button } from "./ui/Button";
 import { IconButton } from "./ui/IconButton";
+import { Input } from "./ui/Input";
+import { useReturnFocus } from "./ui/useReturnFocus";
 
 // The Collection info page (ask B): a hero (art/title/cert/year-range/count/runtime/summary) + the
 // ordered member grid, a Play-all / Shuffle over the playable leaves, and — for a NON-external,
@@ -90,6 +92,7 @@ export default function PlexCollectionView({
 
   const [expanded, setExpanded] = useState(false);
   const [renaming, setRenaming] = useState(false);
+  const renameFocus = useReturnFocus(renaming);
   const [name, setName] = useState("");
   const [adding, setAdding] = useState(false);
   const [busy, setBusy] = useState(false);
@@ -268,17 +271,24 @@ export default function PlexCollectionView({
             customizeMenu={null}
           >
             {renaming ? (
-              <input
+              <Input
+                className="w-full text-2xl font-semibold"
+                size="heading"
                 autoFocus
                 value={name}
                 onChange={(e) => setName(e.target.value)}
                 onBlur={doRename}
                 onKeyDown={(e) => {
-                  if (e.key === "Enter") doRename();
-                  if (e.key === "Escape") setRenaming(false);
+                  if (e.key === "Enter") {
+                    renameFocus.arm();
+                    doRename();
+                  }
+                  if (e.key === "Escape") {
+                    renameFocus.arm();
+                    setRenaming(false);
+                  }
                 }}
                 aria-label={t("plex.collection.rename")}
-                className="glass-card w-full rounded-lg px-2 py-1 text-2xl font-semibold focus:outline-hidden focus:ring-2 focus:ring-accent/40"
               />
             ) : (
               <div className="flex items-center gap-2">
@@ -345,6 +355,7 @@ export default function PlexCollectionView({
               {canEdit && (
                 <>
                   <ActionBtn
+                    ref={renameFocus.target}
                     onClick={() => {
                       setName(d.title);
                       setRenaming(true);
@@ -470,13 +481,13 @@ function AddItemPanel({
     <div className="glass-card mb-6 rounded-2xl p-4">
       <div className="mb-3 flex items-center gap-2">
         <Search className="h-4 w-4 text-muted" />
-        <input
+        <Input
+          className="flex-1"
           autoFocus
           value={term}
           onChange={(e) => setTerm(e.target.value)}
           placeholder={t("plex.collection.addSearch")}
           aria-label={t("plex.collection.addSearch")}
-          className="glass-card flex-1 rounded-lg px-3 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         <IconButton size="md" onClick={onClose} label={t("common.close")}>
           <X />
diff --git a/frontend/src/components/PlexPlayerSettings.tsx b/frontend/src/components/PlexPlayerSettings.tsx
index ab86332c..dc1d2e5c 100644
--- a/frontend/src/components/PlexPlayerSettings.tsx
+++ b/frontend/src/components/PlexPlayerSettings.tsx
@@ -4,6 +4,7 @@ import { useTranslation } from "react-i18next";
 import { Slider, Toggle } from "./plexPlayerControls";
 import { clockParts, type PlexPlayerPrefs } from "../lib/plexPlayerPrefs";
 import { Pressable } from "./ui/Pressable";
+import { ColorInput, Checkbox } from "./ui/NativeControls";
 
 type SettingsTab = "sync" | "playback" | "subtitle" | "clock";
 
@@ -160,36 +161,24 @@ export function PlexPlayerSettings(props: {
           />
           <div className="flex items-center justify-between px-1 py-1.5">
             <span className="text-[0.75rem] text-white/80">{t("plex.player.subColor")}</span>
-            <input
-              type="color"
-              value={prefs.subColor}
-              onChange={(e) => patchPrefs({ subColor: e.target.value })}
-              className="h-6 w-10 cursor-pointer rounded-sm bg-transparent"
-            />
+            <ColorInput value={prefs.subColor} onChange={(v) => patchPrefs({ subColor: v })} />
           </div>
           <div className="flex items-center justify-between px-1 py-1.5">
             <span className="text-[0.75rem] text-white/80">{t("plex.player.subBg")}</span>
             <div className="flex items-center gap-2">
               <label className="flex items-center gap-1 text-2xs text-white/70">
-                <input
-                  type="checkbox"
+                <Checkbox
                   checked={prefs.subBg === "transparent"}
-                  onChange={(e) =>
+                  onChange={(checked) =>
                     patchPrefs({
-                      subBg: e.target.checked ? "transparent" : "#000000",
+                      subBg: checked ? "transparent" : "#000000",
                     })
                   }
-                  className="accent-accent"
                 />
                 {t("plex.player.subBgNone")}
               </label>
               {prefs.subBg !== "transparent" && (
-                <input
-                  type="color"
-                  value={prefs.subBg}
-                  onChange={(e) => patchPrefs({ subBg: e.target.value })}
-                  className="h-6 w-10 cursor-pointer rounded-sm bg-transparent"
-                />
+                <ColorInput value={prefs.subBg} onChange={(v) => patchPrefs({ subBg: v })} />
               )}
             </div>
           </div>
@@ -207,11 +196,9 @@ export function PlexPlayerSettings(props: {
               <span className="text-[0.75rem] text-white/80">
                 {t("plex.player.subShadowColor")}
               </span>
-              <input
-                type="color"
+              <ColorInput
                 value={prefs.subShadowColor}
-                onChange={(e) => patchPrefs({ subShadowColor: e.target.value })}
-                className="h-6 w-10 cursor-pointer rounded-sm bg-transparent"
+                onChange={(v) => patchPrefs({ subShadowColor: v })}
               />
             </div>
           )}
@@ -241,12 +228,7 @@ export function PlexPlayerSettings(props: {
           />
           <div className="flex items-center justify-between px-1 py-1.5">
             <span className="text-[0.75rem] text-white/80">{t("plex.player.clockColor")}</span>
-            <input
-              type="color"
-              value={prefs.clockColor}
-              onChange={(e) => patchPrefs({ clockColor: e.target.value })}
-              className="h-6 w-10 cursor-pointer rounded-sm bg-transparent"
-            />
+            <ColorInput value={prefs.clockColor} onChange={(v) => patchPrefs({ clockColor: v })} />
           </div>
           <Toggle
             label={t("plex.player.clockDate")}
diff --git a/frontend/src/components/PlexPlaylistAdd.tsx b/frontend/src/components/PlexPlaylistAdd.tsx
index dad4da0c..a3be771a 100644
--- a/frontend/src/components/PlexPlaylistAdd.tsx
+++ b/frontend/src/components/PlexPlaylistAdd.tsx
@@ -9,6 +9,7 @@ import { useScrollFade } from "../lib/useScrollFade";
 import { Button } from "./ui/Button";
 import Modal from "./ui/Modal";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 // What we're adding: a single leaf (movie/episode) or a whole group (a season or an entire show, as a
 // set of episode rating_keys). Groups get a tri-state (none / some / all) per playlist.
@@ -112,12 +113,12 @@ export default function PlexPlaylistAdd({
   return (
     <Modal title={t("plex.playlistAdd.title", { title: target.title })} onClose={onClose}>
       <div className="mb-3 flex gap-2">
-        <input
+        <Input
+          className="flex-1"
           value={newName}
           onChange={(e) => setNewName(e.target.value)}
           onKeyDown={(e) => e.key === "Enter" && createNew()}
           placeholder={t("plex.playlistAdd.newPlaceholder")}
-          className="glass-card min-w-0 flex-1 rounded-lg px-3 py-2 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         <Button
           variant="glass"
diff --git a/frontend/src/components/PlexPlaylistView.tsx b/frontend/src/components/PlexPlaylistView.tsx
index e4ac92e9..841e39bc 100644
--- a/frontend/src/components/PlexPlaylistView.tsx
+++ b/frontend/src/components/PlexPlaylistView.tsx
@@ -41,6 +41,8 @@ import {
   useSortableA11y,
   useSortableItem,
 } from "./ui/sortableA11y";
+import { Input } from "./ui/Input";
+import { useReturnFocus } from "./ui/useReturnFocus";
 
 // A playlist's items, grouped for readability: movies stay standalone, while a run of episodes from the
 // same show collapses into a season/show group so a whole series doesn't sprawl into an endless flat
@@ -374,6 +376,7 @@ export default function PlexPlaylistView({
   const qc = useQueryClient();
   const confirm = useConfirm();
   const [renaming, setRenaming] = useState(false);
+  const renameFocus = useReturnFocus(renaming);
   const [name, setName] = useState("");
   const [layout, setLayout] = useState<Layout>(() =>
     getAccountRaw(LS.plexPlaylistLayout) === "tree" ? "tree" : "accordion",
@@ -525,13 +528,25 @@ export default function PlexPlaylistView({
         <div className="mb-4 flex flex-wrap items-center gap-3">
           <div className="min-w-0 flex-1">
             {renaming ? (
-              <input
+              <Input
+                className="w-full text-lg font-bold"
+                size="heading"
                 autoFocus
                 value={name}
                 onChange={(e) => setName(e.target.value)}
-                onKeyDown={(e) => e.key === "Enter" && rename()}
+                onKeyDown={(e) => {
+                  if (e.key === "Enter") {
+                    renameFocus.arm();
+                    rename();
+                  }
+                  // Unmounting the field fires no blur, so Escape really does cancel.
+                  if (e.key === "Escape") {
+                    renameFocus.arm();
+                    setRenaming(false);
+                  }
+                }}
                 onBlur={rename}
-                className="glass-card w-full rounded-lg px-3 py-1.5 text-lg font-bold focus:outline-hidden focus:ring-2 focus:ring-accent/40"
+                aria-label={t("plex.playlist.rename")}
               />
             ) : (
               <h1 className="truncate text-2xl font-bold">{q.data?.title ?? " "}</h1>
@@ -551,6 +566,7 @@ export default function PlexPlaylistView({
             label={t("plex.playlist.layoutLabel")}
           />
           <IconButton
+            ref={renameFocus.target}
             variant="glass"
             size="md"
             onClick={() => {
diff --git a/frontend/src/components/PlexSidebar.tsx b/frontend/src/components/PlexSidebar.tsx
index 57932d75..bbf14531 100644
--- a/frontend/src/components/PlexSidebar.tsx
+++ b/frontend/src/components/PlexSidebar.tsx
@@ -21,6 +21,7 @@ import { useSavedViews } from "./savedViewsContext";
 import { usePlex, usePlexActions } from "./plexContext";
 import { useMe } from "../lib/useMe";
 import { DismissibleChip } from "./ui/Chip";
+import { Input } from "./ui/Input";
 
 // The Plex module's left filter column — now the shared floating SidePanel with its filter groups
 // as reorderable "islands" (same system as the feed rail). Movie libraries get the full metadata
@@ -519,7 +520,9 @@ function NumberInput({
   onChange: (v: number | null) => void;
 }) {
   return (
-    <input
+    <Input
+      className="w-20 tabular-nums"
+      size="sm"
       type="number"
       inputMode="numeric"
       value={value ?? ""}
@@ -528,7 +531,6 @@ function NumberInput({
         const n = e.target.value === "" ? null : Number(e.target.value);
         onChange(n != null && Number.isFinite(n) ? n : null);
       }}
-      className="w-20 rounded-lg border border-border bg-surface px-2 py-1 text-sm tabular-nums focus:outline-hidden focus:ring-2 focus:ring-accent/40"
     />
   );
 }
diff --git a/frontend/src/components/ProfileEditor.tsx b/frontend/src/components/ProfileEditor.tsx
index 90fb3077..68f8e09c 100644
--- a/frontend/src/components/ProfileEditor.tsx
+++ b/frontend/src/components/ProfileEditor.tsx
@@ -6,11 +6,12 @@ import { Lock, Pencil, Plus, Trash2 } from "lucide-react";
 import Modal from "./ui/Modal";
 import { useConfirm } from "./confirmContext";
 import { api, type DownloadProfile, type DownloadSpec } from "../lib/api";
-import { inputCls } from "./ui/form";
 import { Button } from "./ui/Button";
 import SegmentedToggle from "./ui/SegmentedToggle";
 import FilterSelect from "./ui/FilterSelect";
 import { IconButton } from "./ui/IconButton";
+import { CheckRow } from "./ui/NativeControls";
+import { Input } from "./ui/Input";
 
 const HEIGHTS = [null, 2160, 1440, 1080, 720, 480, 360];
 
@@ -36,10 +37,9 @@ function Check({
   onChange: (v: boolean) => void;
 }) {
   return (
-    <label className="flex items-center gap-2 text-sm cursor-pointer select-none">
-      <input type="checkbox" checked={checked} onChange={(e) => onChange(e.target.checked)} />
+    <CheckRow checked={checked} onChange={onChange} className="text-sm">
       {label}
-    </label>
+    </CheckRow>
   );
 }
 
@@ -152,11 +152,11 @@ export default function ProfileEditor({ onClose }: { onClose: () => void }) {
         <div className="rounded-xl border border-border p-4 space-y-3">
           <div>
             <label className="block text-sm font-medium mb-1">{t("downloads.profiles.name")}</label>
-            <input
+            <Input
+              className="w-full"
               value={name}
               onChange={(e) => setName(e.target.value)}
               placeholder={t("downloads.profiles.namePlaceholder")}
-              className={inputCls}
             />
           </div>
           {/* Mode on its own row: three worded choices need the width a half column lacks on a
diff --git a/frontend/src/components/Scheduler.tsx b/frontend/src/components/Scheduler.tsx
index 0a0c8a28..25fbb066 100644
--- a/frontend/src/components/Scheduler.tsx
+++ b/frontend/src/components/Scheduler.tsx
@@ -28,6 +28,7 @@ import Tooltip from "./ui/Tooltip";
 import { notifyActionError } from "../lib/actionErrors";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 const POLL_MS = 4000;
 // While any job is running, poll faster so short scheduled runs aren't missed between ticks.
@@ -181,7 +182,10 @@ function JobRow({
           </Tooltip>
           {editing ? (
             <span className="inline-flex items-center gap-1">
-              <input
+              <Input
+                className="w-16"
+                size="xs"
+                invalid={!valid}
                 type="number"
                 min={1}
                 max={1440}
@@ -194,11 +198,6 @@ function JobRow({
                   if (e.key === "Enter") save();
                   if (e.key === "Escape") close();
                 }}
-                className={`w-16 bg-surface border rounded-sm px-1.5 py-0.5 text-xs focus:outline-hidden focus:ring-2 ${
-                  valid
-                    ? "border-border focus:ring-accent/40"
-                    : "border-danger focus:ring-danger/40"
-                }`}
               />
               <span className="text-muted text-xs">{t("scheduler.minutes")}</span>
               <IconButton onClick={save} disabled={saving || !valid} label={t("common.save")}>
@@ -306,7 +305,10 @@ function MaintenanceSettings({
           </span>
         </Tooltip>
         <span className="flex-1" />
-        <input
+        <Input
+          className="w-28 tabular-nums"
+          size="sm"
+          invalid={!valid}
           type="number"
           min={m.min}
           max={m.max}
@@ -320,9 +322,6 @@ function MaintenanceSettings({
           aria-label={t("scheduler.maintenance.batchLabel")}
           aria-invalid={!valid}
           aria-errormessage={valid ? undefined : rangeId}
-          className={`w-28 bg-surface border rounded-sm px-2 py-1 text-sm tabular-nums focus:outline-hidden focus:ring-2 ${
-            valid ? "border-border focus:ring-accent/40" : "border-danger focus:ring-danger/40"
-          }`}
         />
         <Button variant="glass" size="sm" onClick={save} disabled={!dirty || saving || !valid}>
           {t("common.save")}
diff --git a/frontend/src/components/SearchBar.tsx b/frontend/src/components/SearchBar.tsx
index 7d05d25a..bc7ddf3e 100644
--- a/frontend/src/components/SearchBar.tsx
+++ b/frontend/src/components/SearchBar.tsx
@@ -11,6 +11,7 @@ import { useSearchFocusKey } from "../lib/keymap";
 import { PaletteKeycap } from "./PaletteLauncher";
 import { Button } from "./ui/Button";
 import { IconButton } from "./ui/IconButton";
+import { InnerInput } from "./ui/Input";
 
 // The floating search pill in the top header. One component for every module that searches
 // (feed, Plex, channels, playlists): a glass rounded box with a search icon, the input, a
@@ -73,7 +74,8 @@ export default function SearchBar({
     <div className="pointer-events-auto relative flex-1 min-w-0 max-w-xl @min-[420px]/appmain:min-w-[15rem] @max-[640px]/appmain:order-last @max-[640px]/appmain:basis-full">
       <div className="h-11 pl-3 pr-2 rounded-2xl glass-menu flex items-center gap-2 focus-within:outline-2 focus-within:outline-accent/60 focus-within:outline-offset-2">
         {leading ?? <Search className="w-4 h-4 shrink-0 text-muted" />}
-        <input
+        <InnerInput
+          className="text-sm"
           {...inputProps}
           ref={inputRef}
           value={value}
@@ -90,7 +92,6 @@ export default function SearchBar({
             else if (e.key === "Escape") e.currentTarget.blur();
           }}
           placeholder={placeholder}
-          className="flex-1 min-w-0 bg-transparent outline-hidden text-sm placeholder:text-muted"
         />
         {value && (
           <IconButton onClick={() => onChange("")} label={t("header.clearSearch")}>
diff --git a/frontend/src/components/SettingsPanel.tsx b/frontend/src/components/SettingsPanel.tsx
index fff99313..672c4857 100644
--- a/frontend/src/components/SettingsPanel.tsx
+++ b/frontend/src/components/SettingsPanel.tsx
@@ -14,7 +14,7 @@ import { LS, useAccountPersistedState } from "../lib/storage";
 import Avatar from "./ui/Avatar";
 import { notify, type NotifSettings } from "../lib/notifications";
 import Tooltip from "./ui/Tooltip";
-import { inputCls, Section, SettingRow, Switch } from "./ui/form";
+import { Section, SettingRow, Switch } from "./ui/form";
 import { Button } from "./ui/Button";
 import { type SaveState } from "./ui/DraftSaveBar";
 import { useConfirm } from "./confirmContext";
@@ -25,6 +25,8 @@ import { usePrefs } from "./prefsContext";
 import Tabs from "./ui/Tabs";
 import { useMe } from "../lib/useMe";
 import { Pressable } from "./ui/Pressable";
+import { Slider } from "./ui/NativeControls";
+import { Input, Textarea } from "./ui/Input";
 
 // The Settings page edits server-persisted preferences. Each change applies locally for instant
 // preview AND auto-saves (debounced) — no draft, no Save button; a small indicator flashes the
@@ -186,15 +188,13 @@ function Appearance({ prefs }: { prefs: PrefsController }) {
               <span>{t("settings.appearance.backgroundFade")}</span>
               <span className="tabular-nums">{theme.bgFade}%</span>
             </div>
-            <input
-              type="range"
+            <Slider
               min={0}
               max={100}
               step={1}
               value={theme.bgFade}
-              onChange={(e) => setTheme({ ...theme, bgFade: Number(e.target.value) })}
+              onChange={(v) => setTheme({ ...theme, bgFade: v })}
               aria-label={t("settings.appearance.backgroundFade")}
-              className="w-full accent-accent"
             />
           </div>
         )}
@@ -230,15 +230,13 @@ function Appearance({ prefs }: { prefs: PrefsController }) {
       </Section>
 
       <Section title={t("settings.appearance.textSize")}>
-        <input
-          type="range"
+        <Slider
           min={0.9}
           max={1.3}
           step={0.02}
           value={theme.fontScale}
-          onChange={(e) => setTheme({ ...theme, fontScale: Number(e.target.value) })}
+          onChange={(v) => setTheme({ ...theme, fontScale: v })}
           aria-label={t("settings.appearance.textSize")}
-          className="w-full accent-accent"
         />
         <div className="text-right text-xs text-muted">{Math.round(theme.fontScale * 100)}%</div>
       </Section>
@@ -282,15 +280,14 @@ function Notifications({ prefs }: { prefs: PrefsController }) {
             <span className="text-muted text-xs">{t("settings.notifications.dismissAfter")}</span>
             <span className="text-muted text-xs">{(cfg.durationMs / 1000).toFixed(0)}s</span>
           </div>
-          <input
-            type="range"
+          <Slider
+            className="mt-1"
             min={2000}
             max={15000}
             step={1000}
             value={cfg.durationMs}
-            onChange={(e) => update({ durationMs: Number(e.target.value) })}
+            onChange={(v) => update({ durationMs: v })}
             aria-label={t("settings.notifications.dismissAfter")}
-            className="w-full accent-accent mt-1"
           />
         </div>
       )}
@@ -481,22 +478,22 @@ function SignInMethods({ me }: { me: Me }) {
         {open && (
           <form onSubmit={submit} className="space-y-2 pt-1 pb-1">
             {me.has_password && (
-              <input
+              <Input
+                className="w-full"
                 type="password"
                 value={current}
                 onChange={(e) => setCurrent(e.target.value)}
                 placeholder={t("settings.account.password.current")}
                 autoComplete="current-password"
-                className={inputCls}
               />
             )}
-            <input
+            <Input
+              className="w-full"
               type="password"
               value={next}
               onChange={(e) => setNext(e.target.value)}
               placeholder={t("settings.account.password.new")}
               autoComplete="new-password"
-              className={inputCls}
             />
             {err && (
               <p role="alert" className="text-xs text-danger">
@@ -731,12 +728,12 @@ export function DownloadAuth() {
                   <div className="mt-2 space-y-2">
                     {/* Write-only: the field is ALWAYS empty on open — the stored blob is never
                       fetched or prefilled. */}
-                    <textarea
+                    <Textarea
+                      className="w-full font-mono resize-y"
                       value={draft}
                       onChange={(e) => setDraft(e.target.value)}
                       rows={5}
                       placeholder={t("settings.downloadAuth.placeholder")}
-                      className={`${inputCls} font-mono text-xs resize-y`}
                       data-testid={`cookie-input-${h.host_key}`}
                       spellCheck={false}
                       autoComplete="off"
diff --git a/frontend/src/components/SetupWizard.tsx b/frontend/src/components/SetupWizard.tsx
index b1dc5f13..674bdce3 100644
--- a/frontend/src/components/SetupWizard.tsx
+++ b/frontend/src/components/SetupWizard.tsx
@@ -5,7 +5,7 @@ import { api, HttpError } from "../lib/api";
 import { setLanguage, type LangCode } from "../i18n";
 import LanguageSwitcher from "./LanguageSwitcher";
 import { Button } from "./ui/Button";
-import { inputCls } from "./ui/form";
+import { Input } from "./ui/Input";
 
 // First-run install wizard. Shown by App.tsx while the instance is unconfigured. The one-time
 // setup token comes from the URL the app printed to the container logs (?token=…); every step
@@ -165,38 +165,38 @@ export default function SetupWizard() {
 
           {step === "admin" && (
             <Section title={t("setup.admin.title")} desc={t("setup.admin.desc")}>
-              <input
+              <Input
+                className="w-full"
                 type="email"
                 value={email}
                 onChange={(e) => setEmail(e.target.value)}
                 placeholder={t("setup.admin.email")}
                 autoComplete="username"
-                className={inputCls}
               />
-              <input
+              <Input
+                className="w-full"
                 type="password"
                 value={password}
                 onChange={(e) => setPassword(e.target.value)}
                 placeholder={t("setup.admin.password", { n: PASSWORD_MIN })}
                 autoComplete="new-password"
-                className={inputCls}
               />
             </Section>
           )}
 
           {step === "google" && (
             <Section title={t("setup.google.title")} desc={t("setup.google.desc")}>
-              <input
+              <Input
+                className="w-full"
                 value={gid}
                 onChange={(e) => setGid(e.target.value)}
                 placeholder={t("setup.google.clientId")}
-                className={inputCls}
               />
-              <input
+              <Input
+                className="w-full"
                 value={gsecret}
                 onChange={(e) => setGsecret(e.target.value)}
                 placeholder={t("setup.google.clientSecret")}
-                className={inputCls}
               />
               <p className="text-xs text-muted">{t("setup.google.skipHint")}</p>
             </Section>
@@ -204,46 +204,46 @@ export default function SetupWizard() {
 
           {step === "smtp" && (
             <Section title={t("setup.smtp.title")} desc={t("setup.smtp.desc")}>
-              <input
+              <Input
+                className="w-full"
                 value={smtp.host}
                 onChange={(e) => setSmtp({ ...smtp, host: e.target.value })}
                 placeholder={t("setup.smtp.host")}
-                className={inputCls}
               />
               <div className="flex gap-2">
-                <input
+                <Input
+                  className="w-24"
                   value={smtp.port}
                   onChange={(e) => setSmtp({ ...smtp, port: e.target.value })}
                   placeholder={t("setup.smtp.port")}
-                  className={`${inputCls} w-24`}
                 />
-                <input
+                <Input
+                  className="w-full"
                   value={smtp.user}
                   onChange={(e) => setSmtp({ ...smtp, user: e.target.value })}
                   placeholder={t("setup.smtp.user")}
-                  className={inputCls}
                 />
               </div>
-              <input
+              <Input
+                className="w-full"
                 value={smtp.from}
                 onChange={(e) => setSmtp({ ...smtp, from: e.target.value })}
                 placeholder={t("setup.smtp.from")}
-                className={inputCls}
               />
-              <input
+              <Input
+                className="w-full"
                 type="password"
                 value={smtp.password}
                 onChange={(e) => setSmtp({ ...smtp, password: e.target.value })}
                 placeholder={t("setup.smtp.password")}
-                className={inputCls}
               />
               {smtp.host.trim() && (
                 <div className="flex items-center gap-2 pt-1">
-                  <input
+                  <Input
+                    className="w-full"
                     value={testTo}
                     onChange={(e) => setTestTo(e.target.value)}
                     placeholder={t("setup.smtp.testTo")}
-                    className={inputCls}
                   />
                   <Button
                     variant="glass"
diff --git a/frontend/src/components/ShareDialog.tsx b/frontend/src/components/ShareDialog.tsx
index 5b471306..0c1cc10c 100644
--- a/frontend/src/components/ShareDialog.tsx
+++ b/frontend/src/components/ShareDialog.tsx
@@ -10,10 +10,11 @@ import { notifyActionError } from "../lib/actionErrors";
 import { copyText } from "../lib/clipboard";
 import { formatDate } from "../lib/format";
 import { api, type DownloadJob, type ShareLink, type ShareRecipient } from "../lib/api";
-import { inputCls } from "./ui/form";
 import { Button } from "./ui/Button";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input, InnerInput } from "./ui/Input";
+import { CheckRow } from "./ui/NativeControls";
 const EXPIRY_DAYS = [null, 1, 7, 30] as const;
 
 // --- share with a registered user (ACL) -----------------------------------------------------
@@ -56,7 +57,8 @@ function UserShare({ job }: { job: DownloadJob }) {
       </div>
       <p className="text-xs text-muted mb-2">{t("downloads.share.userHint")}</p>
       <div className="relative">
-        <input
+        <Input
+          className="w-full"
           value={q}
           onChange={(e) => {
             setQ(e.target.value);
@@ -66,7 +68,6 @@ function UserShare({ job }: { job: DownloadJob }) {
           // Close on blur, but after a tick so a click on a dropdown row still registers.
           onBlur={() => setTimeout(() => setOpen(false), 150)}
           placeholder={t("downloads.share.pickPlaceholder")}
-          className={inputCls}
         />
         {open && filtered.length > 0 && (
           <div className="absolute z-base mt-1 w-full rounded-lg glass-menu overflow-hidden">
@@ -144,11 +145,7 @@ function LinkRow({ link, onChanged }: { link: ShareLink; onChanged: () => void }
     <div className="rounded-lg glass-card p-2.5 space-y-2">
       <div className="flex items-center gap-2 rounded-md focus-within:outline-2 focus-within:outline-accent/60 focus-within:outline-offset-2">
         <Link2 className="w-4 h-4 text-muted shrink-0" />
-        <input
-          readOnly
-          value={fullUrl}
-          className="flex-1 min-w-0 bg-transparent text-xs text-muted truncate outline-hidden"
-        />
+        <InnerInput className="text-xs text-muted truncate" readOnly value={fullUrl} />
         <IconButton label={t("downloads.share.copy")} size="sm" variant="ghost" onClick={copy}>
           {copied ? <Check className="w-4 h-4 text-success" /> : <Copy className="w-4 h-4" />}
         </IconButton>
@@ -207,14 +204,15 @@ function LinkRow({ link, onChanged }: { link: ShareLink; onChanged: () => void }
           </span>
         ))}
         <div className="flex-1" />
-        <label className="inline-flex items-center gap-1.5 cursor-pointer">
-          <input type="checkbox" checked={link.allow_download} onChange={() => toggle.mutate()} />
+        <CheckRow checked={link.allow_download} onChange={() => toggle.mutate()}>
           {t("downloads.share.allowDownload")}
-        </label>
+        </CheckRow>
       </div>
       {editPass && (
         <div className="flex items-center gap-2">
-          <input
+          <Input
+            className="flex-1"
+            size="sm"
             type="password"
             autoComplete="new-password"
             value={newPass}
@@ -225,7 +223,6 @@ function LinkRow({ link, onChanged }: { link: ShareLink; onChanged: () => void }
             placeholder={t(
               link.has_password ? "downloads.share.newPassword" : "downloads.share.setPassword",
             )}
-            className="flex-1 min-w-0 bg-surface border border-border rounded-md px-2 py-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-accent/40"
           />
           <Button
             size="xs"
@@ -327,14 +324,9 @@ function LinkShare({ job }: { job: DownloadJob }) {
 
       {creating ? (
         <div className="mt-2 rounded-lg border border-border p-3 space-y-3">
-          <label className="flex items-center gap-2 text-sm cursor-pointer">
-            <input
-              type="checkbox"
-              checked={allowDownload}
-              onChange={(e) => setAllowDownload(e.target.checked)}
-            />
+          <CheckRow checked={allowDownload} onChange={setAllowDownload} className="text-sm">
             {t("downloads.share.allowDownload")}
-          </label>
+          </CheckRow>
           <div className="flex items-center gap-2 text-sm">
             <span className="text-muted">{t("downloads.share.expiry")}:</span>
             {EXPIRY_DAYS.map((d) => (
@@ -351,12 +343,12 @@ function LinkShare({ job }: { job: DownloadJob }) {
               </Button>
             ))}
           </div>
-          <input
+          <Input
+            className="w-full"
             type="password"
             value={password}
             onChange={(e) => setPassword(e.target.value)}
             placeholder={t("downloads.share.password")}
-            className={inputCls}
             autoComplete="new-password"
           />
           <div className="flex justify-end gap-2">
diff --git a/frontend/src/components/TagManager.tsx b/frontend/src/components/TagManager.tsx
index 765fef0d..babd754e 100644
--- a/frontend/src/components/TagManager.tsx
+++ b/frontend/src/components/TagManager.tsx
@@ -14,6 +14,7 @@ import { PopoverSurface } from "./ui/AnchoredPopover";
 import { useAnchoredPopover } from "./ui/anchoredPopoverHooks";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 // One editable row: rename in place (commit on Enter/blur), delete with a confirm, and a
 // hover popover on the count listing the tagged channels (each a link that focuses it in the
@@ -51,12 +52,12 @@ function TagRow({
   });
   return (
     <div className="flex items-center gap-2">
-      <input
+      <Input
+        className="flex-1"
         value={name}
         onChange={(e) => setName(e.target.value)}
         onBlur={commit}
         onKeyDown={(e) => e.key === "Enter" && (e.target as HTMLInputElement).blur()}
-        className="flex-1 min-w-0 bg-surface border border-border rounded-md px-2 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
       />
       <span
         ref={pop.refs.setReference}
@@ -207,11 +208,11 @@ export default function TagManager({
           className="flex items-center gap-2 mt-2 pt-3 border-t border-border"
         >
           <Plus className="w-4 h-4 text-muted shrink-0" />
-          <input
+          <Input
+            className="flex-1"
             value={newName}
             onChange={(e) => setNewName(e.target.value)}
             placeholder={t("tagManager.newPlaceholder")}
-            className="flex-1 min-w-0 bg-surface border border-border rounded-md px-2 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
           />
           <Button
             type="submit"
diff --git a/frontend/src/components/UploadDialog.tsx b/frontend/src/components/UploadDialog.tsx
index 91fe61c9..d9bc4b5f 100644
--- a/frontend/src/components/UploadDialog.tsx
+++ b/frontend/src/components/UploadDialog.tsx
@@ -13,8 +13,8 @@ import { notify } from "../lib/notifications";
 import { navigateTo } from "../lib/nav";
 import { formatBytes } from "../lib/format";
 import { DISPLAY_NAME_MAX } from "../lib/api/downloads";
-import { inputCls } from "./ui/form";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 // Local-file ingest (E7 S5c · D5-A). A general upload — ANY file type, no format list: media
 // (video/audio) joins the library with the full function set, a generic file is download-only. The
@@ -179,7 +179,8 @@ export default function UploadDialog({ onClose }: { onClose: () => void }) {
       <label htmlFor="upload-display-name" className="block text-sm font-medium mt-4 mb-1">
         {t("downloads.upload.nameLabel")}
       </label>
-      <input
+      <Input
+        className="w-full mb-5"
         id="upload-display-name"
         value={name}
         onChange={(e) => setName(e.target.value)}
@@ -190,7 +191,6 @@ export default function UploadDialog({ onClose }: { onClose: () => void }) {
         // third copy: `downloads.contract.test.ts` holds DISPLAY_NAME_MAX against the backend's
         // own DISPLAY_TEXT_MAX.
         maxLength={DISPLAY_NAME_MAX}
-        className={`${inputCls} mb-5`}
       />
 
       {busy && (
diff --git a/frontend/src/components/VideoEditor.tsx b/frontend/src/components/VideoEditor.tsx
index 1c48e5ec..b9911bff 100644
--- a/frontend/src/components/VideoEditor.tsx
+++ b/frontend/src/components/VideoEditor.tsx
@@ -8,12 +8,12 @@ import Modal from "./ui/Modal";
 import { notify } from "../lib/notifications";
 import { api, type DownloadJob, type EditSpec } from "../lib/api";
 import { contentRect, cropToSourcePx, type Frac } from "../lib/cropGeometry";
-import { inputCls } from "./ui/form";
 import { Button } from "./ui/Button";
 import { failureReason, notifyActionError } from "../lib/actionErrors";
 import { markReported } from "../lib/api/core";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 // mm:ss.d timecode <-> seconds.
 function tc(s: number): string {
@@ -38,8 +38,6 @@ function parseTc(v: string): number | null {
 type Seg = { id: number; start: number; end: number; keep: boolean };
 type Drag = { type: "seek" } | { type: "boundary"; bi: number };
 
-const numCls =
-  "w-24 rounded-md bg-surface border border-border px-2 py-1 text-sm tabular-nums focus:outline-hidden focus:ring-2 focus:ring-accent/40";
 const MIN_SEG = 0.1;
 
 export default function VideoEditor({ job, onClose }: { job: DownloadJob; onClose: () => void }) {
@@ -583,7 +581,9 @@ export default function VideoEditor({ job, onClose }: { job: DownloadJob; onClos
             <div className="flex-1" />
             <label className="flex items-center gap-1 text-muted">
               {t("editor.in")}
-              <input
+              <Input
+                className="w-24 tabular-nums"
+                size="sm"
                 defaultValue={tc(sel.start)}
                 key={`s-${sel.id}-${sel.start}`}
                 disabled={selIdx === 0}
@@ -591,12 +591,13 @@ export default function VideoEditor({ job, onClose }: { job: DownloadJob; onClos
                   const v = parseTc(e.target.value);
                   if (v != null && selIdx > 0) moveBoundary(selIdx - 1, v);
                 }}
-                className={numCls}
               />
             </label>
             <label className="flex items-center gap-1 text-muted">
               {t("editor.out")}
-              <input
+              <Input
+                className="w-24 tabular-nums"
+                size="sm"
                 defaultValue={tc(sel.end)}
                 key={`e-${sel.id}-${sel.end}`}
                 disabled={selIdx === segments.length - 1}
@@ -604,7 +605,6 @@ export default function VideoEditor({ job, onClose }: { job: DownloadJob; onClos
                   const v = parseTc(e.target.value);
                   if (v != null && selIdx < segments.length - 1) moveBoundary(selIdx, v);
                 }}
-                className={numCls}
               />
             </label>
             <span className="text-xs text-muted tabular-nums w-16 text-right">
@@ -672,11 +672,11 @@ export default function VideoEditor({ job, onClose }: { job: DownloadJob; onClos
 
         <div>
           <label className="block text-sm font-medium mb-1">{t("editor.nameLabel")}</label>
-          <input
+          <Input
+            className="w-full"
             value={name}
             onChange={(e) => setName(e.target.value)}
             placeholder={defaultName}
-            className={inputCls}
           />
         </div>
 
diff --git a/frontend/src/components/ViewSwitcher.tsx b/frontend/src/components/ViewSwitcher.tsx
index 646e2d26..ce493115 100644
--- a/frontend/src/components/ViewSwitcher.tsx
+++ b/frontend/src/components/ViewSwitcher.tsx
@@ -1,9 +1,9 @@
 import { useState } from "react";
-import { Check, ChevronDown, type LucideIcon } from "lucide-react";
+import { Check, type LucideIcon } from "lucide-react";
 import clsx from "clsx";
 import { PopoverItem, PopoverSurface } from "./ui/AnchoredPopover";
 import { useAnchoredPopover } from "./ui/anchoredPopoverHooks";
-import { Pressable } from "./ui/Pressable";
+import { SelectTrigger } from "./ui/SelectTrigger";
 
 export interface ViewOption<T extends string> {
   id: T;
@@ -60,23 +60,19 @@ export default function ViewSwitcher<T extends string>({
 
   return (
     <>
-      <Pressable
+      <SelectTrigger
+        context="toolbar"
+        open={open}
+        icon={<CurrentIcon className="w-4 h-4 shrink-0" />}
         ref={pop.refs.setReference}
         {...pop.getReferenceProps()}
         // The aria-label carries the mode's name at every size — the visible text below is a
         // nicety for wide windows, not the accessible name.
         aria-label={`${label}: ${current.label}`}
         title={`${label}: ${current.label}`}
-        className={`shrink-0 glass-card glass-hover inline-flex items-center gap-1.5 rounded-full border px-3 py-1 text-sm transition ${
-          open ? "border-accent" : "border-border"
-        }`}
       >
-        <CurrentIcon className="w-4 h-4 shrink-0" />
         <span className={clsx("whitespace-nowrap", labelClassName)}>{current.label}</span>
-        <ChevronDown
-          className={`h-3.5 w-3.5 shrink-0 text-muted transition-transform ${open ? "rotate-180" : ""}`}
-        />
-      </Pressable>
+      </SelectTrigger>
       <PopoverSurface
         popover={pop}
         ariaLabel={label}
diff --git a/frontend/src/components/WatchPage.tsx b/frontend/src/components/WatchPage.tsx
index 71bc81e6..f70a3b6a 100644
--- a/frontend/src/components/WatchPage.tsx
+++ b/frontend/src/components/WatchPage.tsx
@@ -6,6 +6,7 @@ import { formatBytes } from "../lib/format";
 import { exposeVideoToBackgroundPlay } from "../lib/browserBackgroundPlay";
 import { LS, readJSON, writeJSON } from "../lib/storage";
 import { send } from "../lib/http";
+import { Input } from "./ui/Input";
 
 // Standalone, login-free video page for a shared /watch/<token> link. Rendered OUTSIDE the app
 // tree (no auth, no providers) — like the /privacy and /terms pages. Uses plain fetch and a tiny
@@ -268,7 +269,8 @@ export default function WatchPage() {
               <div className="flex items-center gap-2 font-medium mb-4">
                 <Lock className="w-4 h-4 text-accent" /> {T.passwordTitle}
               </div>
-              <input
+              <Input
+                className="w-full"
                 type="password"
                 value={password}
                 autoFocus
@@ -276,7 +278,6 @@ export default function WatchPage() {
                 onKeyDown={(e) => e.key === "Enter" && password && unlock()}
                 placeholder={T.passwordPlaceholder}
                 aria-describedby={error ? errorId : undefined}
-                className="w-full rounded-lg bg-surface border border-border px-3 py-2 text-sm outline-hidden focus:ring-2 focus:ring-accent/40"
               />
               {/* Announced: focus stays in the input, so a silent message reads as a submit that did nothing. */}
               {error && (
diff --git a/frontend/src/components/Welcome.tsx b/frontend/src/components/Welcome.tsx
index 52ddb278..ee5d5e25 100644
--- a/frontend/src/components/Welcome.tsx
+++ b/frontend/src/components/Welcome.tsx
@@ -31,12 +31,12 @@ import LanguageSwitcher from "./LanguageSwitcher";
 import { Button } from "./ui/Button";
 import { trapTab, useDialogChrome } from "./ui/dialogFocus";
 import { anyBlockingLayerAbove, isTopmost, pushLayer, removeLayer } from "../lib/layerStack";
-import { inputCls } from "./ui/form";
 import { entryHash, entrySearch } from "../lib/entryUrl";
 import type { VerifyEntry } from "../lib/useVerifyEntry";
 import { MODE_URL, type Mode } from "./welcomeMode";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
 
 const EMAIL_RE = /^[^@\s]+@[^@\s]+\.[^@\s]+$/;
 const PASSWORD_MIN = 10;
@@ -660,18 +660,19 @@ function AuthCard({ verify }: { verify: VerifyEntry }) {
         <>
           <form onSubmit={onSubmit} className="flex flex-col gap-3 mt-3">
             {mode !== "reset" && (
-              <input
+              <Input
+                className="w-full"
                 type="email"
                 autoComplete="email"
                 required
                 value={email}
                 onChange={(e) => setEmail(e.target.value)}
                 placeholder={t("welcome.auth.email")}
-                className={inputCls}
               />
             )}
             {mode !== "forgot" && mode !== "resend" && (
-              <input
+              <Input
+                className="w-full"
                 type="password"
                 autoComplete={mode === "signin" ? "current-password" : "new-password"}
                 required
@@ -682,7 +683,6 @@ function AuthCard({ verify }: { verify: VerifyEntry }) {
                     ? t("welcome.auth.newPassword", { min: PASSWORD_MIN })
                     : t("welcome.auth.password")
                 }
-                className={inputCls}
               />
             )}
             {error && (
@@ -769,12 +769,12 @@ function AuthCard({ verify }: { verify: VerifyEntry }) {
                 <form onSubmit={onDemo} className="mt-2 flex flex-col gap-2">
                   <p className="text-2xs text-muted">{t("welcome.auth.demoHint")}</p>
                   <div className="flex gap-2">
-                    <input
+                    <Input
+                      className="w-full"
                       type="email"
                       value={demoEmail}
                       onChange={(e) => setDemoEmail(e.target.value)}
                       placeholder={t("welcome.auth.demoEmail")}
-                      className={inputCls}
                     />
                     <Button type="submit" variant="outline" size="lg" disabled={demoBusy}>
                       {demoBusy ? t("welcome.auth.working") : t("welcome.auth.demoEnter")}
diff --git a/frontend/src/components/downloadAdmin.tsx b/frontend/src/components/downloadAdmin.tsx
index a19c3452..34d47f8a 100644
--- a/frontend/src/components/downloadAdmin.tsx
+++ b/frontend/src/components/downloadAdmin.tsx
@@ -7,12 +7,13 @@ import Modal from "./ui/Modal";
 import { useLiveQuery } from "../lib/useLiveQuery";
 import { api } from "../lib/api";
 import { formatBytes } from "../lib/format";
-import { inputCls } from "./ui/form";
 import { Button } from "./ui/Button";
 import { StatusPill } from "./downloadRow";
 import { jobTitle } from "./downloadTitle";
 import { IconButton } from "./ui/IconButton";
 import { Pressable } from "./ui/Pressable";
+import { Input } from "./ui/Input";
+import { CheckRow } from "./ui/NativeControls";
 
 // The admin "System" tab — storage overview, per-user footprint, quota editor, and the global job
 // list. Split out of DownloadCenter (self-contained, admin-only surface).
@@ -80,41 +81,40 @@ function QuotaModal({
         <div className="grid grid-cols-3 gap-3">
           <label className="text-sm">
             {t("downloads.admin.maxBytes")}
-            <input
+            <Input
+              className="w-full"
               type="number"
               value={state.gb}
               onChange={(e) => upd({ gb: Number(e.target.value) })}
-              className={inputCls}
               disabled={state.unlimited}
             />
           </label>
           <label className="text-sm">
             {t("downloads.admin.maxJobs")}
-            <input
+            <Input
+              className="w-full"
               type="number"
               value={state.jobs}
               onChange={(e) => upd({ jobs: Number(e.target.value) })}
-              className={inputCls}
             />
           </label>
           <label className="text-sm">
             {t("downloads.admin.maxConcurrent")}
-            <input
+            <Input
+              className="w-full"
               type="number"
               value={state.conc}
               onChange={(e) => upd({ conc: Number(e.target.value) })}
-              className={inputCls}
             />
           </label>
         </div>
-        <label className="flex items-center gap-2 text-sm cursor-pointer">
-          <input
-            type="checkbox"
-            checked={state.unlimited}
-            onChange={(e) => upd({ unlimited: e.target.checked })}
-          />
+        <CheckRow
+          checked={state.unlimited}
+          onChange={(checked) => upd({ unlimited: checked })}
+          className="text-sm"
+        >
           {t("downloads.admin.unlimited")}
-        </label>
+        </CheckRow>
         <div className="flex justify-between pt-1">
           <Button variant="ghost" size="sm" onClick={() => reset.mutate()}>
             {t("downloads.admin.reset")}
@@ -153,7 +153,8 @@ function QuotaUserPicker({ onPick }: { onPick: (u: { id: number; email: string }
   }, [q, list]);
   return (
     <div className="relative w-full sm:w-72">
-      <input
+      <Input
+        className="w-full"
         value={q}
         onChange={(e) => {
           setQ(e.target.value);
@@ -162,7 +163,6 @@ function QuotaUserPicker({ onPick }: { onPick: (u: { id: number; email: string }
         onFocus={() => setOpen(true)}
         onBlur={() => setTimeout(() => setOpen(false), 150)}
         placeholder={t("downloads.admin.quotaPickPlaceholder")}
-        className={inputCls}
       />
       {open && filtered.length > 0 && (
         <div className="absolute z-base mt-1 w-full rounded-lg glass-menu overflow-hidden">
diff --git a/frontend/src/components/downloadModals.tsx b/frontend/src/components/downloadModals.tsx
index fc43b4ad..594b4096 100644
--- a/frontend/src/components/downloadModals.tsx
+++ b/frontend/src/components/downloadModals.tsx
@@ -5,10 +5,10 @@ import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { Plus, Trash2 } from "lucide-react";
 import Modal from "./ui/Modal";
 import { api, type DownloadJob } from "../lib/api";
-import { inputCls } from "./ui/form";
 import { Button } from "./ui/Button";
 import { IconBtn } from "./downloadRow";
 import { failCopyKeys } from "../lib/downloadFailure";
+import { Input } from "./ui/Input";
 
 // Per-item user modals split out of DownloadCenter (self-contained, prop-driven): rename/metadata
 // editing and the failure-detail window.
@@ -50,28 +50,24 @@ export function MetaEditModal({ job, onClose }: { job: DownloadJob; onClose: ()
       <div className="space-y-3">
         <label className="block">
           <span className="block text-sm font-medium mb-1">{t("downloads.edit.name")}</span>
-          <input
+          <Input
+            className="w-full"
             value={name}
             onChange={(e) => setName(e.target.value)}
-            className={inputCls}
             autoFocus
           />
         </label>
         <label className="block">
           <span className="block text-sm font-medium mb-1">{t("downloads.edit.channel")}</span>
-          <input
-            value={channel}
-            onChange={(e) => setChannel(e.target.value)}
-            className={inputCls}
-          />
+          <Input className="w-full" value={channel} onChange={(e) => setChannel(e.target.value)} />
         </label>
         <label className="block">
           <span className="block text-sm font-medium mb-1">{t("downloads.edit.channelUrl")}</span>
-          <input
+          <Input
+            className="w-full"
             value={channelUrl}
             onChange={(e) => setChannelUrl(e.target.value)}
             placeholder="https://…"
-            className={inputCls}
           />
         </label>
         <div>
@@ -79,11 +75,11 @@ export function MetaEditModal({ job, onClose }: { job: DownloadJob; onClose: ()
           <div className="space-y-2">
             {links.map((l, i) => (
               <div key={i} className="flex gap-2">
-                <input
+                <Input
+                  className="w-full"
                   value={l}
                   onChange={(e) => setLink(i, e.target.value)}
                   placeholder="https://…"
-                  className={inputCls}
                 />
                 <IconBtn
                   onClick={() => removeLink(i)}
diff --git a/frontend/src/components/plexBrowseLists.tsx b/frontend/src/components/plexBrowseLists.tsx
index e42d5dcd..1bb23971 100644
--- a/frontend/src/components/plexBrowseLists.tsx
+++ b/frontend/src/components/plexBrowseLists.tsx
@@ -14,6 +14,7 @@ import PlexLibraryPicker from "./PlexLibraryPicker";
 import NavGrid from "./ui/NavGrid";
 import { Button } from "./ui/Button";
 import { IconButton } from "./ui/IconButton";
+import { Input } from "./ui/Input";
 
 // A collection tile's sub-line: item count · total runtime (each dropped when unknown, e.g. show-only
 // collections have no movie runtime).
@@ -114,13 +115,13 @@ function NewCollectionPanel({
           <X />
         </IconButton>
       </div>
-      <input
+      <Input
+        className="w-full"
         autoFocus
         value={name}
         onChange={(e) => setName(e.target.value)}
         placeholder={t("plex.collection.namePlaceholder")}
         aria-label={t("plex.collection.newCollection")}
-        className="glass-card w-full rounded-lg px-3 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
       />
       {dupHint ? (
         <p className="mt-1 mb-2 text-xs text-muted">{t("plex.collection.nameMaybeTaken")}</p>
@@ -129,13 +130,13 @@ function NewCollectionPanel({
       )}
       <div className="mb-3 flex items-center gap-2">
         <Search className="h-4 w-4 shrink-0 text-muted" />
-        <input
+        <Input
+          className="flex-1"
           value={term}
           onChange={(e) => setTerm(e.target.value)}
           disabled={!nameOk}
           placeholder={t("plex.collection.addSearch")}
           aria-label={t("plex.collection.addSearch")}
-          className="glass-card flex-1 rounded-lg px-3 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40 disabled:opacity-50"
         />
       </div>
       <PlexLibraryPicker
@@ -179,13 +180,15 @@ export function PlexCollectionsBrowse({ onPick }: { onPick: (id: string, title:
   return (
     <div>
       <div className="mb-4 flex flex-wrap items-center gap-2">
-        <input
+        <Input
+          className="w-full max-w-sm"
+          size="sm"
+          pill
           type="search"
           value={search}
           onChange={(e) => setSearch(e.target.value)}
           placeholder={t("plex.filter.collectionSearch")}
           aria-label={t("plex.filter.collectionSearch")}
-          className="glass-card w-full max-w-sm rounded-lg px-3 py-1.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40"
         />
         {isAdmin && !creating && (
           <Button variant="glass" size="sm" icon={<Plus />} onClick={() => setCreating(true)}>
diff --git a/frontend/src/components/plexDetailUi.tsx b/frontend/src/components/plexDetailUi.tsx
index 47faf675..25790446 100644
--- a/frontend/src/components/plexDetailUi.tsx
+++ b/frontend/src/components/plexDetailUi.tsx
@@ -1,4 +1,4 @@
-import { useRef, useState, type ReactNode } from "react";
+import { useRef, useState, type ReactNode, type Ref } from "react";
 import { useTranslation } from "react-i18next";
 import {
   ArrowLeft,
@@ -170,6 +170,7 @@ export function BackBtn({ onBack, label }: { onBack: () => void; label: string }
 }
 
 export function ActionBtn({
+  ref,
   onClick,
   icon: Icon,
   label,
@@ -183,9 +184,11 @@ export function ActionBtn({
   sub?: string;
   primary?: boolean;
   disabled?: boolean;
+  ref?: Ref<HTMLButtonElement>;
 }) {
   return (
     <Button
+      ref={ref}
       variant={primary ? "primary" : "glass"}
       onClick={onClick}
       disabled={disabled}
diff --git a/frontend/src/components/plexPlayerControls.tsx b/frontend/src/components/plexPlayerControls.tsx
index 2afa1cc9..00c7f190 100644
--- a/frontend/src/components/plexPlayerControls.tsx
+++ b/frontend/src/components/plexPlayerControls.tsx
@@ -2,6 +2,7 @@ import { type ReactNode } from "react";
 import { useTranslation } from "react-i18next";
 import { RotateCcw } from "lucide-react";
 import { IconButton } from "./ui/IconButton";
+import { Slider as Range, Checkbox } from "./ui/NativeControls";
 
 // ±10s skip glyph: an outline circular arrow with a "10" in the centre — the YouTube/Plex-native
 // muscle-memory shape. Deliberately distinct from the episode-level SkipBack/SkipForward (double
@@ -93,15 +94,7 @@ export function Slider({
           )}
         </span>
       </div>
-      <input
-        type="range"
-        min={min}
-        max={max}
-        step={step}
-        value={value}
-        onChange={(e) => onChange(Number(e.target.value))}
-        className="w-full accent-accent"
-      />
+      <Range min={min} max={max} step={step} value={value} onChange={(v) => onChange(v)} />
     </div>
   );
 }
@@ -117,12 +110,7 @@ export function Toggle({
   return (
     <label className="flex cursor-pointer items-center justify-between px-1 py-1.5">
       <span className="text-[0.75rem] text-white/80">{label}</span>
-      <input
-        type="checkbox"
-        checked={checked}
-        onChange={(e) => onChange(e.target.checked)}
-        className="h-4 w-4 accent-accent"
-      />
+      <Checkbox checked={checked} onChange={onChange} />
     </label>
   );
 }
diff --git a/frontend/src/components/ui/BackToTop.tsx b/frontend/src/components/ui/BackToTop.tsx
index f4a2bc0e..87e681ca 100644
--- a/frontend/src/components/ui/BackToTop.tsx
+++ b/frontend/src/components/ui/BackToTop.tsx
@@ -50,15 +50,17 @@ export default function BackToTop({ dep, threshold = 600 }: { dep?: unknown; thr
   // No aria-label/title attributes: ad-block "annoyance" cosmetic filters (e.g. Brave Shields)
   // commonly hide floating corner buttons via attribute selectors like [aria-label="Back to top"].
   // The accessible name comes from a visually-hidden child instead, which those selectors can't match.
+  // Shape (docs/DESIGN.md A2): round because it floats over the content, 3rem (48) on mouse and touch —
+  // a lone corner button at a toolbar rung gets lost.
   return createPortal(
     <Pressable
       align="center"
       onClick={toTop}
-      className={`fixed bottom-5 right-5 z-chrome inline-flex items-center justify-center w-16 h-16 rounded-full glass-card glass-hover text-fg hover:text-accent transition-all duration-200 ${
+      className={`fixed bottom-5 right-5 z-chrome inline-flex items-center justify-center size-12 rounded-full glass-card glass-hover text-fg hover:text-accent transition-all duration-200 ${
         show ? "opacity-100 translate-y-0" : "opacity-0 translate-y-3 pointer-events-none"
       }`}
     >
-      <ArrowUp className="w-7 h-7" aria-hidden="true" />
+      <ArrowUp className="size-5" aria-hidden="true" />
       <span className="sr-only">{t("common.backToTop")}</span>
     </Pressable>,
     document.body,
diff --git a/frontend/src/components/ui/Combobox.tsx b/frontend/src/components/ui/Combobox.tsx
index 6d314796..548ba7fd 100644
--- a/frontend/src/components/ui/Combobox.tsx
+++ b/frontend/src/components/ui/Combobox.tsx
@@ -1,9 +1,12 @@
+import clsx from "clsx";
 import { useCallback, useEffect, useMemo, useRef, useState, type ReactNode } from "react";
 import { useTranslation } from "react-i18next";
 import { Check, ChevronDown, X } from "lucide-react";
 import { PopoverSurface, PopoverItem } from "./AnchoredPopover";
 import { useAnchoredPopover } from "./anchoredPopoverHooks";
 import { useScrollFade } from "../../lib/useScrollFade";
+import { InnerInput } from "./Input";
+import { fieldClass } from "./fieldStyles";
 
 // The universal combobox: a react-select / Overseerr-style "combi input" — selected values are
 // removable chips that live INSIDE a text field you type into, and a checklist of options opens below.
@@ -176,7 +179,10 @@ export default function Combobox({
             setOpenAnd(true);
           }
         }}
-        className="glass-card flex min-h-9 w-full cursor-text flex-wrap items-center gap-1 rounded-lg border border-border px-1.5 py-1 transition focus-within:border-accent focus-within:ring-2 focus-within:ring-accent/30"
+        className={clsx(
+          fieldClass({ size: "free" }),
+          "flex min-h-8 w-full cursor-text flex-wrap items-center gap-1 px-1.5 py-0.5 text-sm",
+        )}
       >
         {selected.map((v) => (
           <span key={v} className="chip inline-flex items-center gap-1 px-2 py-0.5 text-sm">
@@ -196,7 +202,8 @@ export default function Combobox({
             </button>
           </span>
         ))}
-        <input
+        <InnerInput
+          className="min-w-8 px-1 py-0.5"
           ref={setInputRef}
           {...pop.getReferenceProps({
             onChange: (e) => {
@@ -226,7 +233,6 @@ export default function Combobox({
           // made a single chip + the reserved input + the chevron overflow a narrow rail field — wrapping
           // the chevron to a second line while the (empty) input filled the first. A small floor keeps the
           // chip + input + chevron on one line; flex-1 still grows the input to fill whatever room is left.
-          className="min-w-8 flex-1 bg-transparent px-1 py-0.5 text-sm outline-hidden placeholder:text-muted/60"
         />
         <ChevronDown className="pointer-events-none mr-0.5 h-3.5 w-3.5 shrink-0 text-muted" />
       </div>
diff --git a/frontend/src/components/ui/CommandPalette.tsx b/frontend/src/components/ui/CommandPalette.tsx
index 200cc6e1..29751e2f 100644
--- a/frontend/src/components/ui/CommandPalette.tsx
+++ b/frontend/src/components/ui/CommandPalette.tsx
@@ -1,3 +1,4 @@
+import clsx from "clsx";
 import { useEffect, useId, useMemo, useRef, useState, type ReactNode } from "react";
 import { useTranslation } from "react-i18next";
 import { Search } from "lucide-react";
@@ -5,6 +6,8 @@ import Modal from "./Modal";
 import { closeTopOverlayThenRun } from "../../lib/history";
 import { pageStep, pageTarget } from "../../lib/listPaging";
 import { Pressable } from "./Pressable";
+import { InnerInput } from "./Input";
+import { fieldClass } from "./fieldStyles";
 
 // The app's jump-to bar: one text field over every place you can go and every app-wide thing you can
 // do, opened with Ctrl/Cmd+K. It is the "one-layer operation" half of E10 — reaching a channel three
@@ -191,9 +194,11 @@ function CommandPaletteBody({ onClose, groups }: { onClose: () => void; groups:
 
   return (
     <Modal title={t("palette.title")} onClose={onClose} maxWidth="max-w-xl" placement="top">
-      <div className="flex items-center gap-2 rounded-xl border border-border bg-surface px-3 py-2">
+      <div
+        className={clsx(fieldClass({ size: "free" }), "flex h-10 items-center gap-2 px-3 text-sm")}
+      >
         <Search className="w-4 h-4 shrink-0 text-muted" />
-        <input
+        <InnerInput
           autoFocus
           value={query}
           onChange={(e) => {
@@ -210,7 +215,6 @@ function CommandPaletteBody({ onClose, groups }: { onClose: () => void; groups:
           aria-expanded={flat.length > 0}
           aria-controls={listId}
           aria-activedescendant={activeId ? `${listId}-${activeId}` : undefined}
-          className="w-full bg-transparent text-sm outline-hidden placeholder:text-muted"
         />
       </div>
 
diff --git a/frontend/src/components/ui/FilterSelect.tsx b/frontend/src/components/ui/FilterSelect.tsx
index 53944cd4..6641f309 100644
--- a/frontend/src/components/ui/FilterSelect.tsx
+++ b/frontend/src/components/ui/FilterSelect.tsx
@@ -1,5 +1,6 @@
 import { useState } from "react";
-import { ChevronDown, Check } from "lucide-react";
+import { Check } from "lucide-react";
+import { SelectTrigger } from "./SelectTrigger";
 import { PopoverItem, PopoverSurface } from "./AnchoredPopover";
 import { useAnchoredPopover } from "./anchoredPopoverHooks";
 
@@ -89,22 +90,19 @@ export default function FilterSelect({
 
   return (
     <>
-      <button
-        type="button"
+      <SelectTrigger
+        context="toolbar"
+        open={open}
+        label={hideLabel ? undefined : label}
         ref={pop.refs.setReference}
         {...pop.getReferenceProps()}
         data-testid={testId}
         // Carry the current value in the accessible name (not just the group label), matching
         // ViewSwitcher — a screen reader announces "Watch state: Unwatched", not a bare "Watch state".
         aria-label={`${label}: ${summary}`}
-        className={`glass-card glass-hover inline-flex items-center gap-1.5 rounded-full border px-3 py-1 text-sm transition ${
-          open ? "border-accent" : "border-border"
-        }`}
       >
-        {!hideLabel && <span className="text-muted">{label}:</span>}
-        <span className="text-fg">{summary}</span>
-        <ChevronDown className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />
-      </button>
+        {summary}
+      </SelectTrigger>
 
       <PopoverSurface
         popover={pop}
diff --git a/frontend/src/components/ui/Input.dom.test.tsx b/frontend/src/components/ui/Input.dom.test.tsx
new file mode 100644
index 00000000..61ec3530
--- /dev/null
+++ b/frontend/src/components/ui/Input.dom.test.tsx
@@ -0,0 +1,81 @@
+// @vitest-environment jsdom
+//
+// E28 S3c: the field primitives (docs/DESIGN.md A4-A6): one frame per rung, the native controls handing
+// back values, and the dropdown trigger by context.
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { cleanup, fireEvent, render, screen } from "@testing-library/react";
+import { Input, Textarea } from "./Input";
+import { CheckRow, Slider } from "./NativeControls";
+import { SelectTrigger } from "./SelectTrigger";
+
+afterEach(cleanup);
+
+describe("Input", () => {
+  it("wears the A4 frame at the chosen rung and says when it is invalid", () => {
+    render(
+      <>
+        <Input aria-label="name" />
+        <Input aria-label="search" size="sm" pill invalid />
+      </>,
+    );
+    const name = screen.getByRole("textbox", { name: "name" });
+    expect(name.className).toContain("edge-strong");
+    expect(name.className).toContain("h-8");
+    expect(name.className).toContain("rounded-lg");
+    expect(name.getAttribute("aria-invalid")).toBeNull();
+    const search = screen.getByRole("textbox", { name: "search" });
+    expect(search.className).toContain("h-7");
+    expect(search.className).toContain("rounded-full");
+    expect(search.getAttribute("aria-invalid")).toBe("true");
+  });
+
+  it("lets a caller lay it out but not re-paint its edge", () => {
+    render(<Textarea aria-label="body" className="w-full" />);
+    const body = screen.getByRole("textbox", { name: "body" });
+    expect(body.className).toContain("w-full");
+    expect(body.className).toContain("edge-strong");
+  });
+});
+
+describe("the native controls", () => {
+  it("hand back a boolean and a number, not the event", () => {
+    const onCheck = vi.fn();
+    const onSlide = vi.fn();
+    render(
+      <>
+        <CheckRow checked={false} onChange={onCheck}>
+          Only unwatched
+        </CheckRow>
+        <Slider aria-label="size" min={0} max={10} value={3} onChange={onSlide} />
+      </>,
+    );
+    // The label is the target: a click on its text toggles the box.
+    fireEvent.click(screen.getByText("Only unwatched"));
+    expect(onCheck).toHaveBeenCalledWith(true);
+    fireEvent.change(screen.getByRole("slider", { name: "size" }), { target: { value: "7" } });
+    expect(onSlide).toHaveBeenCalledWith(7);
+  });
+});
+
+describe("SelectTrigger", () => {
+  it("is a pill in a toolbar, r8 and full width in a form, and shows open", () => {
+    render(
+      <>
+        <SelectTrigger context="toolbar" open={false} label="Sort">
+          Newest
+        </SelectTrigger>
+        <SelectTrigger context="form" open>
+          MP4
+        </SelectTrigger>
+      </>,
+    );
+    const toolbar = screen.getByRole("button", { name: /Newest/ });
+    const form = screen.getByRole("button", { name: "MP4" });
+    expect(toolbar.textContent).toBe("Sort:Newest");
+    expect(toolbar.className).toContain("rounded-full");
+    expect(toolbar.className).toContain("border-border");
+    expect(form.className).toContain("rounded-lg");
+    expect(form.className).toContain("w-full");
+    expect(form.className).toContain("border-accent");
+  });
+});
diff --git a/frontend/src/components/ui/Input.tsx b/frontend/src/components/ui/Input.tsx
new file mode 100644
index 00000000..7959fb61
--- /dev/null
+++ b/frontend/src/components/ui/Input.tsx
@@ -0,0 +1,79 @@
+import clsx from "clsx";
+import type { InputHTMLAttributes, Ref, TextareaHTMLAttributes } from "react";
+import { fieldClass, type FieldSize } from "./fieldStyles";
+
+// The text-field primitives (docs/DESIGN.md A4, E28 S3c). Every text, number, password, e-mail, search
+// and date box is an `Input`; a multi-line one a `Textarea`; a box whose frame also holds an icon,
+// chips or a clear button is a wrapper painted with `fieldClass` around an `InnerInput`. A raw
+// `<input>` or `<textarea>` anywhere else is a lint error (`local/input-primitive`), so the
+// frame, the focus edge and the coarse-pointer 1rem text cannot drift apart again.
+//
+// `className` lays the field out (width, margin, font weight); its box and edge are the rung's.
+
+type Common = {
+  /** The rung (`FieldSize`): `md` 32 in a form (default), `sm` 28 in a toolbar, a popover or an inline rename, `xs` 24 in a row, `heading` for a title rename. */
+  size?: FieldSize;
+  /** A toolbar search (A4): a pill instead of r8. */
+  pill?: boolean;
+  /** Marks the field invalid (the danger edge) and says so to a screen reader. */
+  invalid?: boolean;
+};
+
+export function Input({
+  size,
+  pill,
+  invalid,
+  className,
+  ref,
+  ...rest
+}: Omit<InputHTMLAttributes<HTMLInputElement>, "size"> & Common & { ref?: Ref<HTMLInputElement> }) {
+  return (
+    <input
+      ref={ref}
+      aria-invalid={invalid || undefined}
+      className={clsx(fieldClass({ size, pill }), className)}
+      {...rest}
+    />
+  );
+}
+
+export function Textarea({
+  invalid,
+  className,
+  ref,
+  ...rest
+}: TextareaHTMLAttributes<HTMLTextAreaElement> & {
+  invalid?: boolean;
+  ref?: Ref<HTMLTextAreaElement>;
+}) {
+  return (
+    <textarea
+      ref={ref}
+      aria-invalid={invalid || undefined}
+      className={clsx(
+        fieldClass({ size: "free" }),
+        "px-3 py-1.5 text-sm pointer-coarse:text-base",
+        className,
+      )}
+      {...rest}
+    />
+  );
+}
+
+/** The bare text box inside a `fieldClass` frame: no edge, no box, it fills the frame's free width. */
+export function InnerInput({
+  className,
+  ref,
+  ...rest
+}: InputHTMLAttributes<HTMLInputElement> & { ref?: Ref<HTMLInputElement> }) {
+  return (
+    <input
+      ref={ref}
+      className={clsx(
+        "min-w-0 flex-1 bg-transparent text-fg outline-hidden placeholder:text-muted",
+        className,
+      )}
+      {...rest}
+    />
+  );
+}
diff --git a/frontend/src/components/ui/NativeControls.tsx b/frontend/src/components/ui/NativeControls.tsx
new file mode 100644
index 00000000..4dda533d
--- /dev/null
+++ b/frontend/src/components/ui/NativeControls.tsx
@@ -0,0 +1,98 @@
+import clsx from "clsx";
+import type { InputHTMLAttributes, ReactNode, Ref } from "react";
+
+// A6 (docs/DESIGN.md, E28 S3c): checkbox, slider and colour well are the BROWSER's controls, tinted
+// with the accent — keyboard, screen reader and forced-colours support come free, and a drawn copy
+// would have to rebuild all three. What the browser does not give is the 44 touch target: the labelled
+// row (`CheckRow`) or the slider's own box grows to it on a coarse pointer. Like `Input`, a raw
+// `<input>` for any of them anywhere else is a lint error.
+
+type Native = Omit<InputHTMLAttributes<HTMLInputElement>, "type" | "onChange">;
+
+/** The bare checkbox: inside your own `<label>`, or with an `aria-label`. Prefer `CheckRow`. */
+export function Checkbox({
+  onChange,
+  className,
+  ref,
+  ...rest
+}: Native & { onChange?: (checked: boolean) => void; ref?: Ref<HTMLInputElement> }) {
+  return (
+    <input
+      ref={ref}
+      type="checkbox"
+      onChange={(e) => onChange?.(e.target.checked)}
+      className={clsx(
+        "size-4 shrink-0 cursor-pointer accent-accent disabled:cursor-not-allowed",
+        className,
+      )}
+      {...rest}
+    />
+  );
+}
+
+/** A checkbox and its label as one row, the whole row the target (44 on touch). */
+export function CheckRow({
+  checked,
+  onChange,
+  disabled,
+  className,
+  children,
+}: {
+  checked: boolean;
+  onChange: (checked: boolean) => void;
+  disabled?: boolean;
+  /** Lays the row out (text size, colour, margin); the target geometry is the primitive's. */
+  className?: string;
+  children: ReactNode;
+}) {
+  return (
+    <label
+      className={clsx(
+        "inline-flex cursor-pointer items-center gap-2 select-none pointer-coarse:min-h-(--touch-target)",
+        disabled && "cursor-not-allowed opacity-50",
+        className,
+      )}
+    >
+      <Checkbox checked={checked} onChange={onChange} disabled={disabled} />
+      {children}
+    </label>
+  );
+}
+
+/** A range slider; `onChange` hands back the number. */
+export function Slider({
+  onChange,
+  className,
+  ...rest
+}: Native & { onChange: (value: number) => void }) {
+  return (
+    <input
+      type="range"
+      onChange={(e) => onChange(Number(e.target.value))}
+      className={clsx(
+        "w-full cursor-pointer accent-accent pointer-coarse:min-h-(--touch-target)",
+        className,
+      )}
+      {...rest}
+    />
+  );
+}
+
+/** The browser's colour well, a small swatch. */
+export function ColorInput({
+  onChange,
+  className,
+  ...rest
+}: Native & { onChange: (value: string) => void }) {
+  return (
+    <input
+      type="color"
+      onChange={(e) => onChange(e.target.value)}
+      className={clsx(
+        "h-6 w-10 cursor-pointer rounded-sm bg-transparent pointer-coarse:h-(--touch-target) pointer-coarse:w-14",
+        className,
+      )}
+      {...rest}
+    />
+  );
+}
diff --git a/frontend/src/components/ui/Pager.tsx b/frontend/src/components/ui/Pager.tsx
index 3cdfab19..65b642ab 100644
--- a/frontend/src/components/ui/Pager.tsx
+++ b/frontend/src/components/ui/Pager.tsx
@@ -4,6 +4,7 @@ import { ChevronLeft, ChevronRight } from "lucide-react";
 import { hasPagerContent, pageCount } from "./pagerContent";
 import SegmentedToggle from "./SegmentedToggle";
 import { Button } from "./Button";
+import { Input } from "./Input";
 
 // The Prev / page-input / Next + "N per page" cluster, lifted out of DataTable so a non-table view
 // (the channel manager's card layout) can paginate the same way. Controlled: the caller owns page +
@@ -77,7 +78,9 @@ export default function Pager({
           </Button>
           <span className="text-muted flex items-center gap-1.5">
             {t("datatable.pager.pageLabel")}
-            <input
+            <Input
+              className="w-14 text-center tabular-nums"
+              size="xs"
               type="number"
               min={1}
               max={totalPages}
@@ -86,7 +89,6 @@ export default function Pager({
               onBlur={commitPageInput}
               onKeyDown={(e) => e.key === "Enter" && commitPageInput()}
               aria-label={t("datatable.pager.pageLabel")}
-              className="w-14 bg-surface border border-border rounded-md px-1.5 py-1 text-xs text-center tabular-nums focus:outline-hidden focus:ring-2 focus:ring-accent/40"
             />
             {t("datatable.pager.ofTotal", { total: totalPages })}
           </span>
diff --git a/frontend/src/components/ui/PriorityStepper.dom.test.tsx b/frontend/src/components/ui/PriorityStepper.dom.test.tsx
index 8fdef167..23ec84e5 100644
--- a/frontend/src/components/ui/PriorityStepper.dom.test.tsx
+++ b/frontend/src/components/ui/PriorityStepper.dom.test.tsx
@@ -22,6 +22,20 @@ const lower = () => screen.getByRole("button", { name: "common.priority.lower" }
 const valueBtn = () => screen.getByRole("button", { name: "common.priority.edit" });
 
 describe("PriorityStepper", () => {
+  it("hands the focus back to the value after Enter or Escape, not to <body>", () => {
+    const onSet = vi.fn();
+    render(
+      <PriorityStepper hint="what it orders" priority={3} onPriority={vi.fn()} onSet={onSet} />,
+    );
+    for (const key of ["Escape", "Enter"]) {
+      fireEvent.click(valueBtn());
+      const field = screen.getByRole("spinbutton");
+      field.focus();
+      fireEvent.keyDown(field, { key });
+      expect(document.activeElement).toBe(valueBtn());
+    }
+  });
+
   it("shows the current priority and both step buttons", () => {
     render(
       <PriorityStepper hint="what it orders" priority={12} onPriority={vi.fn()} onSet={vi.fn()} />,
diff --git a/frontend/src/components/ui/PriorityStepper.tsx b/frontend/src/components/ui/PriorityStepper.tsx
index 938a7d49..c5da938d 100644
--- a/frontend/src/components/ui/PriorityStepper.tsx
+++ b/frontend/src/components/ui/PriorityStepper.tsx
@@ -2,6 +2,7 @@ import { useCallback, useEffect, useRef, useState } from "react";
 import { Minus, Plus } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import Tooltip from "./Tooltip";
+import { useReturnFocus } from "./useReturnFocus";
 
 type Size = "sm" | "md";
 
@@ -114,6 +115,7 @@ export function PriorityStepper({
     onPriority(delta);
   };
 
+  const editFocus = useReturnFocus(editing);
   const commitEdit = () => {
     const parsed = parseInt(draft, 10);
     if (!Number.isNaN(parsed) && parsed !== priority) onSet(parsed);
@@ -154,6 +156,7 @@ export function PriorityStepper({
           } ${cls.value}`}
         >
           <button
+            ref={editFocus.target}
             onClick={beginEdit}
             aria-label={t("common.priority.edit")}
             title={t("common.priority.edit")}
@@ -170,8 +173,13 @@ export function PriorityStepper({
               onChange={(e) => setDraft(e.target.value)}
               onBlur={commitEdit}
               onKeyDown={(e) => {
-                if (e.key === "Enter") commitEdit();
-                else if (e.key === "Escape") setEditing(false);
+                if (e.key === "Enter") {
+                  editFocus.arm();
+                  commitEdit();
+                } else if (e.key === "Escape") {
+                  editFocus.arm();
+                  setEditing(false);
+                }
               }}
               aria-label={hint}
               className="absolute inset-0 w-full h-full text-center font-medium tabular-nums text-accent bg-card outline-hidden [appearance:textfield] [&::-webkit-inner-spin-button]:appearance-none"
diff --git a/frontend/src/components/ui/README.md b/frontend/src/components/ui/README.md
index 0be8fb54..71bcd6e5 100644
--- a/frontend/src/components/ui/README.md
+++ b/frontend/src/components/ui/README.md
@@ -36,13 +36,13 @@ domain-free.
 
 ## What lives here
 
-| area                   | components                                                                                                                                                                                                                                                                                                                                                                                                           |
-| ---------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| overlays & anchoring   | `AnchoredPopover` + `anchoredPopoverHooks` (the popover engine: arrows, typeahead, Escape, anchor-flip), `ActionMenu`, `ContextMenu` + `useContextMenu` (the SAME menu, opened by right-click / long-press / Shift+F10), `Modal`, `Overlay`, `SidePanel`, `Tooltip`, `Toaster` (+ `toastLevels`, `overlayOrder`; `lib/toastDock` docks one control under the stack, in every host), `CommandPalette`, `KeyboardHelp` |
-| actions & inputs       | `Button`, `IconButton`, `Pressable`, `Chip` + `chipStyles`, `DragHandle` (one per button family, docs/DESIGN.md; a raw `<button>` outside this folder is a lint error), `form`, `DraftSaveBar`, `Combobox`, `FilterSelect`, `SegmentedToggle`, `SortControl`, `ColumnSortControl`, `PriorityStepper`, `UndoToolbar`                                                                                                  |
-| data display           | `DataTable`, `tableHeader` + `tableAlign`, `Pager` + `pagerContent`, `VirtualGrid` + `gridColumns` (the column/width maths, incl. the ultrawide `maxCols` cap), `readAhead`, `Carousel`, `NavGrid` (a plain grid, list or table body the keyboard walks — `DataTable`, `VirtualGrid` and `Carousel` take `keyboardNav`), `Avatar`, `CountBadge`, `ItemCount`, `FilterChipGroup`                                      |
-| page & panel structure | `PageShell` + `pageToolbarSlot`, `PageScroller`, `PanelGroup`, `PanelGroups`, `Tabs`, `BackToTop`                                                                                                                                                                                                                                                                                                                    |
-| state & messaging      | `QueryState`, `Banner`, `InlineNotice`                                                                                                                                                                                                                                                                                                                                                                               |
+| area                   | components                                                                                                                                                                                                                                                                                                                                                                                                                                            |
+| ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| overlays & anchoring   | `AnchoredPopover` + `anchoredPopoverHooks` (the popover engine: arrows, typeahead, Escape, anchor-flip), `ActionMenu`, `ContextMenu` + `useContextMenu` (the SAME menu, opened by right-click / long-press / Shift+F10), `Modal`, `Overlay`, `SidePanel`, `Tooltip`, `Toaster` (+ `toastLevels`, `overlayOrder`; `lib/toastDock` docks one control under the stack, in every host), `CommandPalette`, `KeyboardHelp`                                  |
+| actions & inputs       | `Button`, `IconButton`, `Pressable`, `Chip` + `chipStyles`, `DragHandle` (one per button family, docs/DESIGN.md; a raw `<button>` outside this folder is a lint error), `Input` + `fieldStyles`, `NativeControls`, `SelectTrigger` (the field family; a raw `<input>` is a lint error), `useReturnFocus`, `form`, `DraftSaveBar`, `Combobox`, `FilterSelect`, `SegmentedToggle`, `SortControl`, `ColumnSortControl`, `PriorityStepper`, `UndoToolbar` |
+| data display           | `DataTable`, `tableHeader` + `tableAlign`, `Pager` + `pagerContent`, `VirtualGrid` + `gridColumns` (the column/width maths, incl. the ultrawide `maxCols` cap), `readAhead`, `Carousel`, `NavGrid` (a plain grid, list or table body the keyboard walks — `DataTable`, `VirtualGrid` and `Carousel` take `keyboardNav`), `Avatar`, `CountBadge`, `ItemCount`, `FilterChipGroup`                                                                       |
+| page & panel structure | `PageShell` + `pageToolbarSlot`, `PageScroller`, `PanelGroup`, `PanelGroups`, `Tabs`, `BackToTop`                                                                                                                                                                                                                                                                                                                                                     |
+| state & messaging      | `QueryState`, `Banner`, `InlineNotice`                                                                                                                                                                                                                                                                                                                                                                                                                |
 
 ## The size contract (E10 S1c)
 
diff --git a/frontend/src/components/ui/SelectTrigger.tsx b/frontend/src/components/ui/SelectTrigger.tsx
new file mode 100644
index 00000000..24f5267c
--- /dev/null
+++ b/frontend/src/components/ui/SelectTrigger.tsx
@@ -0,0 +1,50 @@
+import { forwardRef } from "react";
+import type { ButtonHTMLAttributes, ReactNode } from "react";
+import clsx from "clsx";
+import { ChevronDown } from "lucide-react";
+import { FocusSafeButton } from "./FocusSafeButton";
+
+// The dropdown trigger (docs/DESIGN.md A5, E28 S3c): the one button that opens a list of choices —
+// `SortControl`, `FilterSelect`, the view switcher, the date filter. By context: a pill at the toolbar's
+// 28 (in a toolbar the pill means "a filter or a choice"), or r8 at the form's 32, full width, lining up
+// with the inputs around it. Open is the accent edge and the chevron turned over. The popover wiring
+// (ref, `getReferenceProps`, the accessible name carrying the value) is the caller's.
+export const SelectTrigger = forwardRef<
+  HTMLButtonElement,
+  ButtonHTMLAttributes<HTMLButtonElement> & {
+    context: "toolbar" | "form";
+    open: boolean;
+    /** The muted "Sort:" prefix before the value. */
+    label?: ReactNode;
+    /** A leading glyph (the view's icon, a calendar). */
+    icon?: ReactNode;
+    /** Between the value and the chevron (the sort direction arrow). */
+    trailing?: ReactNode;
+  }
+>(function SelectTrigger(
+  { context, open, label, icon, trailing, className, children, ...rest },
+  ref,
+) {
+  return (
+    <FocusSafeButton
+      ref={ref}
+      type="button"
+      className={clsx(
+        "glass-card glass-hover inline-flex shrink-0 items-center gap-1.5 border text-left text-sm transition touch-target",
+        context === "toolbar" ? "h-7 rounded-full px-3" : "h-8 w-full rounded-lg px-2.5",
+        open ? "border-accent" : "border-border",
+        className,
+      )}
+      {...rest}
+    >
+      {icon}
+      {label != null && <span className="text-muted">{label}:</span>}
+      <span className={clsx("text-fg", context === "form" && "flex-1 truncate")}>{children}</span>
+      {trailing}
+      <ChevronDown
+        aria-hidden="true"
+        className={clsx("size-3.5 shrink-0 text-muted transition-transform", open && "rotate-180")}
+      />
+    </FocusSafeButton>
+  );
+});
diff --git a/frontend/src/components/ui/SortControl.tsx b/frontend/src/components/ui/SortControl.tsx
index 54ecc952..7a1e1cce 100644
--- a/frontend/src/components/ui/SortControl.tsx
+++ b/frontend/src/components/ui/SortControl.tsx
@@ -1,5 +1,6 @@
 import { useState, type ReactNode } from "react";
-import { ArrowDown, ArrowUp, Check, ChevronDown } from "lucide-react";
+import { ArrowDown, ArrowUp, Check } from "lucide-react";
+import { SelectTrigger } from "./SelectTrigger";
 import { pickSort, type SortOption, type SortState } from "../../lib/columnSort";
 import { PopoverItem, PopoverSurface } from "./AnchoredPopover";
 import { useAnchoredPopover } from "./anchoredPopoverHooks";
@@ -64,8 +65,10 @@ export default function SortControl({
 
   return (
     <>
-      <button
-        type="button"
+      <SelectTrigger
+        context="toolbar"
+        open={open}
+        label={label}
         ref={pop.refs.setReference}
         {...pop.getReferenceProps()}
         // Carry the active sort key AND direction in the accessible name (the visible arrow is
@@ -74,21 +77,18 @@ export default function SortControl({
         aria-label={`${label}: ${summary}${
           showArrow && active ? `, ${active.dir === "asc" ? ascLabel : descLabel}` : ""
         }`}
-        className={`glass-card glass-hover inline-flex items-center gap-1.5 rounded-full border px-3 py-1 text-sm transition ${
-          open ? "border-accent" : "border-border"
-        }`}
-      >
-        <span className="text-muted">{label}:</span>
-        <span className="text-fg">{summary}</span>
-        {showArrow &&
+        trailing={
+          showArrow &&
           active &&
           (active.dir === "asc" ? (
             <ArrowUp className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />
           ) : (
             <ArrowDown className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />
-          ))}
-        <ChevronDown className="h-3.5 w-3.5 shrink-0 text-muted" aria-hidden="true" />
-      </button>
+          ))
+        }
+      >
+        {summary}
+      </SelectTrigger>
 
       <PopoverSurface
         popover={pop}
diff --git a/frontend/src/components/ui/fieldStyles.ts b/frontend/src/components/ui/fieldStyles.ts
new file mode 100644
index 00000000..26039608
--- /dev/null
+++ b/frontend/src/components/ui/fieldStyles.ts
@@ -0,0 +1,41 @@
+import clsx from "clsx";
+
+// The A4 field frame (docs/DESIGN.md): one bordered box for every text field, whether the frame is the
+// <input> itself (`Input`, `Textarea`) or a wrapper that holds an icon, chips or a clear button beside
+// a bare `InnerInput` (a log search, the Combobox). `focus-within` covers both: an input is within
+// itself. Its own file so `Input.tsx` exports components only (react-refresh).
+
+export type FieldSize =
+  | "md" // 32 — a form field, lines up with a `md` Button
+  | "sm" // 28 — a toolbar search, a field in a popover or an inline rename, lines up with the toolbar row
+  | "xs" // 24 — inside a table row or a pager
+  | "heading" // an inline rename of a page title: the field takes the heading's own type (the caller's)
+  | "free"; // the caller lays the box out (a multi-line field, a chip field that wraps)
+
+// On a coarse pointer the text is 1rem, so a tablet browser does not zoom the page on focus (not on a
+// heading, whose type is already larger).
+const SIZES: Record<FieldSize, string> = {
+  md: "h-8 px-3 text-sm pointer-coarse:text-base",
+  sm: "h-7 px-2.5 text-sm pointer-coarse:text-base",
+  xs: "h-6 px-2 text-xs pointer-coarse:text-base",
+  heading: "px-2 py-0.5",
+  free: "",
+};
+
+// The edge is --edge-strong (the fg mixed 55% into the bg, ≥ 3:1 on every scheme — WCAG 1.4.11); focus
+// turns it into a 2px accent edge (the border plus a 1px ring), the outlined-field convention. Invalid
+// is the danger edge, focused or not. On a coarse pointer the box grows to the 44 touch target.
+const BASE =
+  "min-w-0 border edge-strong bg-transparent text-fg placeholder:text-muted transition-colors " +
+  "focus-within:border-accent focus-within:ring-1 focus-within:ring-accent focus-within:outline-hidden " +
+  "aria-invalid:border-danger aria-invalid:ring-danger has-aria-invalid:border-danger has-aria-invalid:ring-danger " +
+  "disabled:cursor-not-allowed disabled:opacity-50 has-disabled:cursor-not-allowed has-disabled:opacity-50 " +
+  "pointer-coarse:min-h-(--touch-target)";
+
+export function fieldClass({
+  size = "md",
+  pill = false,
+}: { size?: FieldSize; pill?: boolean } = {}) {
+  // A4: a toolbar search is a pill; every other field r8.
+  return clsx(BASE, SIZES[size], pill ? "rounded-full" : "rounded-lg");
+}
diff --git a/frontend/src/components/ui/form.tsx b/frontend/src/components/ui/form.tsx
index 694ffd7b..023c3d52 100644
--- a/frontend/src/components/ui/form.tsx
+++ b/frontend/src/components/ui/form.tsx
@@ -5,15 +5,6 @@ import { FocusSafeButton } from "./FocusSafeButton";
 // Shared form/settings primitives, factored out of the many panels that each re-declared
 // them (Settings, Config, Stats, admin pages, Setup wizard). Visual contract unchanged.
 
-/** The ONE text/select/number input recipe (full-width, surface bg, rounded-lg, 2px accent focus
- * RING). R10 S3 unified every input onto this: the old settings-family border-focus style
- * (`bg-card rounded-xl focus:border-accent`) and its three copy-pasted local `inputCls` constants
- * (KeyGate/SettingsPanel/SetupWizard) are gone. Size variants (a small pager/table-filter/chat
- * input) keep their own width/radius/padding but adopt the same bg-surface + ring-focus look
- * inline — reach for this const for a default full-size field, match its look for a smaller one. */
-export const inputCls =
-  "w-full rounded-lg bg-surface border border-border px-3 py-2 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40";
-
 /** Pill on/off switch — the bare control; compose it with your own label/row. Pass `label` for
  * the accessible name (the visible row text) since the control itself has no inner text. */
 export function Switch({
diff --git a/frontend/src/components/ui/tableHeader.tsx b/frontend/src/components/ui/tableHeader.tsx
index 69feeea0..ecfeff10 100644
--- a/frontend/src/components/ui/tableHeader.tsx
+++ b/frontend/src/components/ui/tableHeader.tsx
@@ -11,6 +11,7 @@ import { useStickyTop } from "./stickyTop";
 import { Button } from "./Button";
 import { IconButton } from "./IconButton";
 import { Pressable } from "./Pressable";
+import { Input } from "./Input";
 
 // The column-header machinery — the sortable header row with its filter funnel + popover — lifted
 // OUT of DataTable so a non-DataTable body can render under the same headers. The column contract
@@ -95,12 +96,13 @@ function FilterFunnel<T>({
         className="glass-menu w-52 rounded-xl p-2 animate-[popIn_0.16s_ease]"
       >
         {f.kind === "text" && (
-          <input
+          <Input
+            className="w-full"
+            size="sm"
             ref={inputRef}
             value={(value as string) ?? ""}
             onChange={(e) => onApply(col.key, e.target.value)}
             placeholder={col.header}
-            className="w-full bg-surface border border-border rounded-md px-2 py-1 text-xs focus:outline-hidden focus:ring-2 focus:ring-accent/40"
           />
         )}
         {f.kind === "select" && (
diff --git a/frontend/src/components/ui/useReturnFocus.ts b/frontend/src/components/ui/useReturnFocus.ts
new file mode 100644
index 00000000..31849483
--- /dev/null
+++ b/frontend/src/components/ui/useReturnFocus.ts
@@ -0,0 +1,21 @@
+import { useCallback, useEffect, useRef } from "react";
+
+// An in-place editor (a title rename, a number field over a stepper) swaps its trigger for a field
+// and back. Leaving it by Enter or Escape unmounts the focused field, and the browser drops the focus
+// on <body>: the next Tab starts again at the top of the page (WCAG 2.4.3). This hands the focus back
+// to the trigger once the editor has CLOSED — after the commit, so the trigger is mounted and visible
+// again whether it stayed in the tree or was swapped out. `arm()` it from the keys only: leaving by a
+// click elsewhere means the user already put the focus where they wanted it.
+export function useReturnFocus<T extends HTMLElement = HTMLButtonElement>(open: boolean) {
+  const target = useRef<T | null>(null);
+  const armed = useRef(false);
+  useEffect(() => {
+    if (open || !armed.current) return;
+    armed.current = false;
+    target.current?.focus();
+  }, [open]);
+  const arm = useCallback(() => {
+    armed.current = true;
+  }, []);
+  return { target, arm };
+}
diff --git a/frontend/src/design-lab/DesignLab.tsx b/frontend/src/design-lab/DesignLab.tsx
index ccab4cd8..e51882fc 100644
--- a/frontend/src/design-lab/DesignLab.tsx
+++ b/frontend/src/design-lab/DesignLab.tsx
@@ -4,6 +4,7 @@ import { BatchA } from "./batchA";
 import { BatchB } from "./batchB";
 import { BatchC } from "./batchC";
 import { Chip } from "../components/ui/Chip";
+import { Slider } from "../components/ui/NativeControls";
 
 // The design lab (E28): the living style guide. Dev-only — see main.tsx and devOnlyGuard.ts. It sits
 // OUTSIDE <App>, so it owns the theme attributes on <html> itself, through the same data-theme /
@@ -59,14 +60,13 @@ export default function DesignLab() {
         </Chip>
         <label className="flex items-center gap-2 text-xs text-muted">
           text {look.fontScale.toFixed(2)}
-          <input
-            type="range"
+          <Slider
+            className="w-24"
             min={0.9}
             max={1.2}
             step={0.02}
             value={look.fontScale}
-            onChange={(e) => set({ fontScale: Number(e.target.value) })}
-            className="w-24 accent-accent"
+            onChange={(v) => set({ fontScale: v })}
           />
         </label>
         <nav className="flex flex-wrap gap-1 text-xs">
diff --git a/frontend/src/design-lab/batchA.tsx b/frontend/src/design-lab/batchA.tsx
index e4407e01..166ffd28 100644
--- a/frontend/src/design-lab/batchA.tsx
+++ b/frontend/src/design-lab/batchA.tsx
@@ -12,9 +12,14 @@ import {
   Trash2,
 } from "lucide-react";
 import { Contrast, Reference, Sample } from "./labKit";
-import { H, LAYER, STRONG } from "./labTokens";
+import { LAYER, STRONG } from "./labTokens";
 import { Button } from "../components/ui/Button";
 import { IconButton } from "../components/ui/IconButton";
+import { Checkbox, Slider } from "../components/ui/NativeControls";
+import { Input, InnerInput } from "../components/ui/Input";
+import { fieldClass } from "../components/ui/fieldStyles";
+import { SelectTrigger } from "../components/ui/SelectTrigger";
+import { Switch } from "../components/ui/form";
 
 // E28 S2 · Batch A — controls, DECIDED (owner, 2026-09-24: all six as recommended), rendered with the
 // batch B decisions that refine them: B1's compact ladder and B3's state layers. Only the chosen
@@ -84,15 +89,9 @@ function TouchRow() {
 
 function Trigger({ label, value }: { label: string; value: string }) {
   return (
-    <span
-      className={clsx(
-        "glass-card glass-hover inline-flex items-center gap-1.5 rounded-full border px-3 text-sm",
-        H.bar,
-      )}
-    >
-      <span className="text-muted">{label}:</span> {value}
-      <ChevronDown className="h-3.5 w-3.5 text-muted" />
-    </span>
+    <SelectTrigger context="toolbar" open={false} label={label}>
+      {value}
+    </SelectTrigger>
   );
 }
 
@@ -101,24 +100,16 @@ function NativeSet() {
   return (
     <>
       <label className={row}>
-        <input type="checkbox" defaultChecked className="h-4.5 w-4.5 accent-accent" />
+        <Checkbox defaultChecked />
         Only unwatched
       </label>
-      <label className={clsx(row, "justify-between")}>
+      <div className={clsx(row, "justify-between")}>
         Hide Shorts
-        <span className="relative h-5 w-9 rounded-full bg-accent">
-          <span className="absolute right-0.5 top-0.5 h-4 w-4 rounded-full bg-accent-fg" />
-        </span>
-      </label>
+        <Switch checked onChange={() => {}} label="Hide Shorts" />
+      </div>
       <label className="flex flex-col gap-1 px-2 text-sm">
         Text size
-        <input
-          type="range"
-          min={90}
-          max={120}
-          defaultValue={102}
-          className="w-full accent-accent"
-        />
+        <Slider min={90} max={120} defaultValue={102} onChange={() => {}} />
       </label>
     </>
   );
@@ -136,14 +127,13 @@ export function BatchA() {
         <Sample label="Toolbar · sm, with a search, a trigger and an icon button, all 28">
           <div className="flex flex-wrap items-center gap-2">
             <label
-              className={clsx("flex w-40 items-center gap-2 rounded-full border px-3", H.bar)}
-              style={{ borderColor: STRONG }}
+              className={clsx(
+                fieldClass({ size: "sm", pill: true }),
+                "flex w-40 items-center gap-2",
+              )}
             >
-              <Search className="h-4 w-4 text-muted" />
-              <input
-                className="min-w-0 flex-1 bg-transparent text-sm outline-none"
-                placeholder="Search"
-              />
+              <Search className="h-4 w-4 shrink-0 text-muted" />
+              <InnerInput placeholder="Search" aria-label="Search" />
             </label>
             <Trigger label="Sort" value="Newest" />
             <Btn tone="glass" size="sm" icon={<RefreshCw className={ico} />}>
@@ -228,16 +218,27 @@ export function BatchA() {
       >
         <label className="flex flex-col gap-1 text-sm">
           <span className="font-medium">Playlist name</span>
-          <input
-            className={clsx(
-              "rounded-lg border bg-transparent px-3 text-sm outline-none focus:ring-2 focus:ring-accent",
-              H.field,
-            )}
-            style={{ borderColor: STRONG }}
-            defaultValue="Evening mix"
-          />
-          <span className="text-xs text-danger">A playlist with this name already exists.</span>
+          <Input defaultValue="Evening mix" className="w-full" />
         </label>
+        <label className="flex flex-col gap-1 text-sm">
+          <span className="font-medium">Playlist name (invalid)</span>
+          <Input
+            invalid
+            defaultValue="Favourites"
+            className="w-full"
+            aria-describedby="lab-a4-err"
+          />
+          <span id="lab-a4-err" className="text-xs text-danger">
+            A playlist with this name already exists.
+          </span>
+        </label>
+        <Sample label="Rungs · md 32, sm 28 (pill: a toolbar search), xs 24">
+          <div className="flex flex-wrap items-center gap-2">
+            <Input placeholder="md" className="w-24" />
+            <Input size="sm" pill placeholder="sm pill" className="w-24" />
+            <Input size="xs" placeholder="xs" className="w-16" />
+          </div>
+        </Sample>
         <Contrast fg={STRONG} min={3} label="Edge vs page" />
       </Reference>
       <Reference
@@ -252,15 +253,9 @@ export function BatchA() {
         </div>
         <label className="flex flex-col gap-1 text-sm">
           <span className="font-medium">Download format</span>
-          <span
-            className={clsx(
-              "glass-card flex items-center justify-between rounded-lg border px-3 text-sm",
-              H.field,
-            )}
-          >
+          <SelectTrigger context="form" open={false}>
             MP4 · 1080p
-            <ChevronDown className="h-3.5 w-3.5 text-muted" />
-          </span>
+          </SelectTrigger>
         </label>
       </Reference>
       <Reference
diff --git a/frontend/src/lib/inputPrimitive.contract.test.ts b/frontend/src/lib/inputPrimitive.contract.test.ts
new file mode 100644
index 00000000..702d07ad
--- /dev/null
+++ b/frontend/src/lib/inputPrimitive.contract.test.ts
@@ -0,0 +1,43 @@
+import { fileURLToPath } from "node:url";
+
+import { ESLint } from "eslint";
+import { describe, expect, it } from "vitest";
+
+// `local/input-primitive` (eslint.config.js): every text field is ui/Input, Textarea or InnerInput and
+// every checkbox / slider / colour well a NativeControls primitive (docs/DESIGN.md A4, A6; E28 S3c).
+// ~100 hand-styled boxes were swept; this pins that the rule keeping a new one out fires, and where it
+// stands down.
+const RULE = "local/input-primitive";
+const FRONTEND = fileURLToPath(new URL("../../", import.meta.url));
+
+async function hits(source: string, filePath = "src/components/__probe.tsx"): Promise<number> {
+  const eslint = new ESLint({ cwd: FRONTEND });
+  const [result] = await eslint.lintText(source, { filePath });
+  return (result?.messages ?? []).filter((m) => m.ruleId === RULE).length;
+}
+
+describe("a hand-rolled field", () => {
+  it("is refused anywhere outside the field primitives, text box or native control", async () => {
+    const text = 'export const A = () => <input className="border px-2" />;\n';
+    expect(await hits(text)).toBe(1);
+    expect(await hits(text, "src/design-lab/__probe.tsx")).toBe(1);
+    // …and in a ui/ composite: the pager's page box is an Input too.
+    expect(await hits(text, "src/components/ui/Pager.tsx")).toBe(1);
+    expect(await hits("export const B = () => <textarea />;\n")).toBe(1);
+    expect(await hits('export const C = () => <input type="checkbox" />;\n')).toBe(1);
+    expect(await hits('export const D = () => <input type="range" />;\n')).toBe(1);
+  });
+
+  it("passes in a field primitive, for a file picker, and for the primitives themselves", async () => {
+    for (const file of ["Input.tsx", "NativeControls.tsx"])
+      expect(await hits("export const E = () => <input />;\n", `src/components/ui/${file}`)).toBe(
+        0,
+      );
+    expect(await hits('export const F = () => <input type="file" hidden />;\n')).toBe(0);
+    expect(
+      await hits(
+        'import { Input } from "./ui/Input";\nexport const G = () => <Input className="w-full" />;\n',
+      ),
+    ).toBe(0);
+  });
+});