fix(meds): focus management and full-row hit area on the wizard

Step advance moves focus into the new step's first input so
keyboard and screen-reader users land where they need to type. The
cadence-picker rows now register clicks across the full 44 px row,
not just the radio glyph + label. The "describe it" trigger on
step 1 rises to 44 px so it clears the WCAG 2.5.5 floor the rest of
the codebase honours.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/medications/scheduling/CadencePicker.tsx

@@ -308,7 +308,13 @@ function CadenceOption({
       data-slot="cadence-option"
       data-kind={kind}
     >
-      <div className="flex min-h-11 items-center gap-3">
+      {/* Wrapping the row in <label> makes the entire 44 px-tall card
+          a click target for the radio (WCAG 2.5.5) instead of just the
+          16 px radio glyph + the label text node. */}
+      <label
+        htmlFor={inputId}
+        className="flex min-h-11 cursor-pointer items-center gap-3 select-none"
+      >
         <input
           id={inputId}
           type="radio"
@@ -316,17 +322,11 @@ function CadenceOption({
           checked={selected}
           disabled={disabled}
           onChange={onPick}
-          aria-label={label}
           className="text-primary focus-visible:ring-ring h-4 w-4 cursor-pointer focus-visible:outline-none focus-visible:ring-2"
           data-slot="cadence-option-radio"
         />
-        <Label
-          htmlFor={inputId}
-          className="cursor-pointer select-none text-sm font-medium"
-        >
-          {label}
-        </Label>
-      </div>
+        <span className="text-sm font-medium">{label}</span>
+      </label>
 
       {selected && kind === "weekdays" && (
         <div className="mt-3">

src/components/medications/scheduling/CreationWizard.tsx

@@ -72,7 +72,7 @@
  *   .errors.fieldRequired                — "Required"
  */
 
-import { useCallback, useMemo, useState } from "react";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { useRouter } from "next/navigation";
 import { useQueryClient } from "@tanstack/react-query";
 import { Loader2, Sparkles } from "lucide-react";
@@ -522,10 +522,37 @@ export function CreationWizard({
   const [submitError, setSubmitError] = useState<string | null>(null);
   const [fieldErrors, setFieldErrors] = useState<Record<string, string>>({});
 
+  // Ref on the step body so we can pull focus into the first
+  // interactive control whenever the wizard advances. Without this a
+  // keyboard / screen-reader user stays parked on the Back / Next
+  // button across step transitions instead of landing on the new
+  // step's input.
+  const bodyRef = useRef<HTMLDivElement | null>(null);
+  const isFirstRenderRef = useRef(true);
+
   const applyPartial = useCallback((partial: Partial<WizardPayload>) => {
     setPayload((prev) => ({ ...prev, ...partial }));
   }, []);
 
+  // Focus the first interactive element when the step changes.
+  // Skip the initial render so opening the wizard never steals focus
+  // from the page chrome.
+  useEffect(() => {
+    if (isFirstRenderRef.current) {
+      isFirstRenderRef.current = false;
+      return;
+    }
+    const node = bodyRef.current;
+    if (!node) return;
+    const target = node.querySelector<HTMLElement>(
+      'input:not([disabled]):not([type="hidden"]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), [tabindex]:not([tabindex="-1"])',
+    );
+    if (!target) return;
+    // preventScroll keeps the focus jump silent for reduced-motion
+    // users; the surrounding layout already keeps the body in view.
+    target.focus({ preventScroll: true });
+  }, [step]);
+
   const canContinue = useMemo(
     () => validateStep(payload, step),
     [payload, step],
@@ -627,7 +654,7 @@ export function CreationWizard({
         <p className="text-muted-foreground text-xs">{stepOf}</p>
         <CardTitle className="text-base">{stepTitle}</CardTitle>
       </CardHeader>
-      <CardContent className="space-y-4">
+      <CardContent className="space-y-4" ref={bodyRef}>
         {step === 1 && (
           <Step1NameDose
             payload={payload}
@@ -733,9 +760,8 @@ function Step1NameDose({
         <Button
           type="button"
           variant="outline"
-          size="sm"
           onClick={onNlClick}
-          className="w-full"
+          className="h-11 w-full"
           data-slot="wizard-nl-button"
         >
           <Sparkles className="mr-2 h-4 w-4" aria-hidden="true" />