diff --git a/docs/release/v0.3-tactile-quietware.md b/docs/release/v0.3-tactile-quietware.md
index b559fe0..b725b77 100644
--- a/docs/release/v0.3-tactile-quietware.md
+++ b/docs/release/v0.3-tactile-quietware.md
@@ -351,7 +351,41 @@ LumotiaNotice now reads these via Tailwind arbitrary-value classes (`bg-[var(--n
 
 Per Jake's round-5 spec: yellow stays yellow (visible signal), ochre only appears as small-text ink, and brown/khaki never represents the caution role's primary identity again.
 
-### Phase 4h — Counterlines test (TBD: keep or remove). Landed 2026-05-15.
+### Phase 4i — Counterlines as interaction-affordance identity. Landed 2026-05-15.
+
+Round-7 redirect (Option D): move counterlines from notices (where they're invisible) to interactive controls (where they add identity). Three-level model:
+
+| Level | Surface | Width | Opacity |
+|---|---|---|---|
+| 0 — none | panels, notices (default), content, disabled | — | — |
+| 1 — quiet | controls, chips, active nav | 1 px | 48% dark / 34% light |
+| 2 — focus | keyboard focus, recording state | 2 px | 85% |
+
+Notice retires from default counterline rendering. Opt-in via `<LumotiaNotice counterline ... />` when a specific notice deliberately mimics control identity.
+
+LumotiaButton primary + destructive variants gain a Level-1 inset counterline:
+
+- primary: `--button-brand-counterline` (softened blue, complement of brand amber)
+- destructive: `--button-danger-counterline` (softened blue, complement of red)
+- secondary / tertiary: no counterline (clean neutral)
+- All variants on `:focus-visible`: 2-px ring at `--focus-ring-color` (default `--color-accent`) at 85% opacity. HC overrides to a strong blue `#005FCC`.
+
+Token deltas vs Phase 4h:
+
+```css
+--counterline-width: 1px                    /* unchanged */
+--counterline-width-focus: 2px              /* new — Level-2 width */
+--counterline-opacity-dark: 0.48            /* was 0.32 */
+--counterline-opacity-light: 0.34           /* was 0.22 */
+--counterline-opacity-focus: 0.85           /* new */
+--role-brand-counterline: #3A6BFF           /* new — blue counter for orange brand */
+--button-{role}-counterline                 /* new — per-role component tokens */
+--focus-ring-color                          /* new — context-overridable focus tint */
+```
+
+HC contract: every counterline token forced transparent, `--counterline-width: 0`, focus width kept at 2 px (HC focus ring carries the tactile detail in that mode), `--focus-ring-color: #005FCC`.
+
+### Phase 4h — Counterlines test (RETIRED 2026-05-15, superseded by Phase 4i). Landed 2026-05-15.
 
 Test commit per Jake's round-6 spec. Subtle 1-px inner-shadow detail in a softened complementary hue, applied to LumotiaNotice only. Other test surfaces (Button.destructive, status pills, record ring, active nav) reserved for after evaluation.
 
diff --git a/src/design-system/v0.3-quietware-tokens.css b/src/design-system/v0.3-quietware-tokens.css
index df9d68b..c97e305 100644
--- a/src/design-system/v0.3-quietware-tokens.css
+++ b/src/design-system/v0.3-quietware-tokens.css
@@ -219,29 +219,53 @@
   --quietware-texture-color: rgba(243, 239, 231, 1);
 
   /* ----------------------------------------------------------
-     Phase 4h — counterlines (test).
-     Tactile-only 1-px inner-shadow detail using a softened
-     complementary hue. NOT a second semantic signal — meaning is
-     still carried by signal + icon + label. HC contract zeroes
-     the width.
+     Phase 4i — counterlines as interactive-affordance identity
+     (per round-7 redirect). Three-level model:
+
+       Level 0  no counterline   (panels, notices, content, disabled)
+       Level 1  quiet            (controls, chips, active nav)
+       Level 2  strong / focus   (keyboard focus, recording state)
+
+     Notices retire from default counterline rendering (they have
+     enough semantic language already: bar + icon + border + bg +
+     label). Notice can still opt in via the `counterline` prop.
+
+     HC contract zeroes the normal width but keeps the focus width
+     because the HC focus ring IS the tactile detail in that mode.
      ---------------------------------------------------------- */
   --counterline-width: 1px;
+  --counterline-width-focus: 2px;
+  --counterline-opacity-dark: 0.48;
+  --counterline-opacity-light: 0.34;
+  --counterline-opacity-focus: 0.85;
 
-  /* Raw complementary hues per Jake's spec. */
+  /* Raw complementary hues. Brand orange gets its own counterline
+     (soft blue) so primary buttons land in the same identity as the
+     other roles. */
   --role-info-counterline:    var(--color-accent);
   --role-danger-counterline:  #6EA8FF;
   --role-success-counterline: #B891FF;
   --role-caution-counterline: #3A6BFF;
+  --role-brand-counterline:   #3A6BFF;
 
-  /* Tinted per theme. Dark mode uses 32% opacity (~slightly stronger
-     so it reads against the dark surface). Per-usage aliases so
-     components subscribe semantically. */
-  --notice-info-counterline:    color-mix(in srgb, var(--role-info-counterline) 32%, transparent);
-  --notice-danger-counterline:  color-mix(in srgb, var(--role-danger-counterline) 32%, transparent);
-  --notice-success-counterline: color-mix(in srgb, var(--role-success-counterline) 32%, transparent);
-  --notice-caution-counterline: color-mix(in srgb, var(--role-caution-counterline) 32%, transparent);
+  /* Component usage tokens. Buttons + chips + nav subscribe to these.
+     Default opacity is dark; light-mode override below replaces. */
+  --button-brand-counterline:   color-mix(in srgb, var(--role-brand-counterline)   calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --button-danger-counterline:  color-mix(in srgb, var(--role-danger-counterline)  calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --button-info-counterline:    color-mix(in srgb, var(--role-info-counterline)    calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --button-success-counterline: color-mix(in srgb, var(--role-success-counterline) calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --button-caution-counterline: color-mix(in srgb, var(--role-caution-counterline) calc(var(--counterline-opacity-dark) * 100%), transparent);
 
-  --button-danger-counterline:  var(--notice-danger-counterline);
+  /* Notice-level counterline tokens kept available for opt-in only.
+     LumotiaNotice no longer applies them by default per round-7. */
+  --notice-info-counterline:    color-mix(in srgb, var(--role-info-counterline)    calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --notice-danger-counterline:  color-mix(in srgb, var(--role-danger-counterline)  calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --notice-success-counterline: color-mix(in srgb, var(--role-success-counterline) calc(var(--counterline-opacity-dark) * 100%), transparent);
+  --notice-caution-counterline: color-mix(in srgb, var(--role-caution-counterline) calc(var(--counterline-opacity-dark) * 100%), transparent);
+
+  /* Focus ring colour — defaults to brand accent. Components can
+     override per-context (eg. info focus = info-counterline). */
+  --focus-ring-color: var(--color-accent);
 }
 
 /* ============================================================
@@ -325,14 +349,18 @@
   --quietware-texture-opacity: var(--grain-opacity);
   --quietware-texture-color: rgba(29, 27, 24, 1);
 
-  /* Phase 4h light-mode counterlines. Lower opacity (22%) so the
-     detail stays whisper-quiet against the cream surface. */
-  --notice-info-counterline:    color-mix(in srgb, var(--role-info-counterline) 22%, transparent);
-  --notice-danger-counterline:  color-mix(in srgb, var(--role-danger-counterline) 22%, transparent);
-  --notice-success-counterline: color-mix(in srgb, var(--role-success-counterline) 22%, transparent);
-  --notice-caution-counterline: color-mix(in srgb, var(--role-caution-counterline) 22%, transparent);
+  /* Phase 4i light-mode counterlines. Lower opacity per Jake's spec
+     so the detail stays restrained against the cream surface. */
+  --button-brand-counterline:   color-mix(in srgb, var(--role-brand-counterline)   calc(var(--counterline-opacity-light) * 100%), transparent);
+  --button-danger-counterline:  color-mix(in srgb, var(--role-danger-counterline)  calc(var(--counterline-opacity-light) * 100%), transparent);
+  --button-info-counterline:    color-mix(in srgb, var(--role-info-counterline)    calc(var(--counterline-opacity-light) * 100%), transparent);
+  --button-success-counterline: color-mix(in srgb, var(--role-success-counterline) calc(var(--counterline-opacity-light) * 100%), transparent);
+  --button-caution-counterline: color-mix(in srgb, var(--role-caution-counterline) calc(var(--counterline-opacity-light) * 100%), transparent);
 
-  --button-danger-counterline:  var(--notice-danger-counterline);
+  --notice-info-counterline:    color-mix(in srgb, var(--role-info-counterline)    calc(var(--counterline-opacity-light) * 100%), transparent);
+  --notice-danger-counterline:  color-mix(in srgb, var(--role-danger-counterline)  calc(var(--counterline-opacity-light) * 100%), transparent);
+  --notice-success-counterline: color-mix(in srgb, var(--role-success-counterline) calc(var(--counterline-opacity-light) * 100%), transparent);
+  --notice-caution-counterline: color-mix(in srgb, var(--role-caution-counterline) calc(var(--counterline-opacity-light) * 100%), transparent);
 }
 
 /* ============================================================
@@ -418,14 +446,28 @@
   --quietware-texture-opacity: 0;
   --quietware-texture-color: rgba(0, 0, 0, 0);
 
-  /* HC contract: counterlines disabled (the 2-px HC border IS the
-     tactile detail in this mode). */
+  /* HC contract: counterlines disabled for normal states. The HC
+     focus ring (2 px, full strong-blue) IS the tactile detail in
+     this mode. */
   --counterline-width: 0;
+  --counterline-width-focus: 2px;
+  --counterline-opacity-dark: 0;
+  --counterline-opacity-light: 0;
+  --counterline-opacity-focus: 1;
+
   --notice-info-counterline:    transparent;
   --notice-danger-counterline:  transparent;
   --notice-success-counterline: transparent;
   --notice-caution-counterline: transparent;
+
+  --button-brand-counterline:   transparent;
   --button-danger-counterline:  transparent;
+  --button-info-counterline:    transparent;
+  --button-success-counterline: transparent;
+  --button-caution-counterline: transparent;
+
+  /* HC focus ring is the brand-strong blue, not a complement. */
+  --focus-ring-color: #005FCC;
 }
 
 /* Dark-base high-contrast — black background, white borders. Used
diff --git a/src/lib/ui/LumotiaButton.svelte b/src/lib/ui/LumotiaButton.svelte
index b393359..0250b79 100644
--- a/src/lib/ui/LumotiaButton.svelte
+++ b/src/lib/ui/LumotiaButton.svelte
@@ -46,15 +46,26 @@
   // Variant palette uses semantic tokens; primary fills with --color-accent
   // (amber/copper) and pairs with .btn-filled-text for AA. Destructive
   // mirrors primary on --color-danger.
+  //
+  // v0.3 Phase 4i — interactive counterlines. primary + destructive
+  // gain a Level-1 inset counterline (softened complement) under
+  // quietware. Secondary + tertiary stay clean. HC contract zeroes
+  // --counterline-width so the effect vanishes in HC.
+  //
+  // Focus state uses Level-2 width (2 px) + --focus-ring-color via a
+  // focus-visible ring. Tailwind's ring utility writes to a separate
+  // box-shadow slot so it composes cleanly with the inset counterline.
   const variantClass: Record<Variant, string> = {
     primary:
-      "bg-accent btn-filled-text font-medium hover:bg-accent-hover shadow-[var(--shadow-accent-pill)]",
+      "bg-accent btn-filled-text font-medium hover:bg-accent-hover " +
+      "shadow-[var(--shadow-accent-pill),inset_0_0_0_var(--counterline-width,0)_var(--button-brand-counterline,transparent)]",
     secondary:
       "bg-bg-elevated text-text border border-border-subtle hover:bg-hover",
     tertiary:
       "bg-transparent text-text-secondary hover:bg-hover hover:text-text",
     destructive:
-      "bg-danger btn-filled-text font-medium hover:bg-danger/90",
+      "bg-danger btn-filled-text font-medium hover:bg-danger/90 " +
+      "shadow-[inset_0_0_0_var(--counterline-width,0)_var(--button-danger-counterline,transparent)]",
   };
 
   const busy = $derived(loading || disabled);
@@ -63,6 +74,10 @@
 <button
   {type}
   class="rounded-lg font-medium select-none disabled:opacity-50 disabled:cursor-not-allowed
+    focus-visible:outline-none
+    focus-visible:ring-[var(--counterline-width-focus,2px)]
+    focus-visible:ring-[color-mix(in_srgb,var(--focus-ring-color,var(--color-accent))_calc(var(--counterline-opacity-focus,0.85)*100%),transparent)]
+    focus-visible:ring-offset-2 focus-visible:ring-offset-bg
     {sizeClass[size]}
     {variantClass[variant]}
     {fullWidth ? 'w-full' : ''}
diff --git a/src/lib/ui/LumotiaNotice.svelte b/src/lib/ui/LumotiaNotice.svelte
index bcc0997..901d36f 100644
--- a/src/lib/ui/LumotiaNotice.svelte
+++ b/src/lib/ui/LumotiaNotice.svelte
@@ -35,6 +35,11 @@
     /** Slim variant collapses to a single line with no title block.
         For ambient page-level notices (eg. "You're in browser preview"). */
     slim?: boolean;
+    /** v0.3 Phase 4i opt-in: render the tactile counterline as an
+        inset shadow. Off by default — notices already carry enough
+        semantic language without the extra decoration. Reserve for
+        cases where the notice deliberately mimics control identity. */
+    counterline?: boolean;
     children?: Snippet;
     classes?: string;
   }
@@ -45,6 +50,7 @@
     dismissible = false,
     onDismiss,
     slim = false,
+    counterline = false,
     children,
     classes = "",
   }: Props = $props();
@@ -112,7 +118,7 @@
   role={ariaRole}
   class="rounded-r-lg rounded-l-sm border border-l-4 text-[13px] flex gap-2.5
     {slim ? 'px-3 py-2 items-center' : 'px-4 py-3 items-start'}
-    {tonePal.bar} {tonePal.border} {tonePal.bg} {tonePal.shadow} {classes}"
+    {tonePal.bar} {tonePal.border} {tonePal.bg} {counterline ? tonePal.shadow : ''} {classes}"
 >
   <ToneIcon size={slim ? 14 : 16} class="shrink-0 {slim ? '' : 'mt-0.5'} {tonePal.iconColor}" aria-hidden="true" />
   <div class="flex-1 min-w-0 leading-relaxed text-text">