Replace checkbox with React state-driven toggle for reliable terms acceptance

src/components/auth/register-form.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useActionState } from "react";
+import { useActionState, useState } from "react";
 import Link from "next/link";
 import { useTranslations } from "next-intl";
 import { register } from "@/actions/register";
@@ -19,6 +19,7 @@ export function RegisterForm({
   const t = useTranslations("pages.register");
   const showCaptcha = captcha.provider !== "none" && !!captcha.siteKey;
   const [serverError, formAction, isPending] = useActionState(register, null);
+  const [termsAccepted, setTermsAccepted] = useState(false);
 
   return (
     <div className="mx-auto w-full max-w-[800px]">
@@ -154,18 +155,29 @@ export function RegisterForm({
         <div className="rounded-md p-3 flex flex-col gap-3" style={{
           backgroundColor: "color-mix(in srgb, var(--color-background) 50%, var(--color-surface))",
         }}>
-          <label className="flex flex-wrap items-center w-full gap-3 text-sm cursor-pointer">
-            <input
-              name="terms"
-              type="checkbox"
-              className="w-4 h-4 border-gray-300 rounded focus:ring-0 shrink-0"
-              style={{ borderColor: "color-mix(in srgb, var(--color-text-muted) 30%, transparent)" }}
-              required
-            />
-            <span className="font-semibold" style={{ color: "var(--color-text)" }}>
+          <div className="flex items-center gap-3 text-sm">
+            <button
+              type="button"
+              role="checkbox"
+              aria-checked={termsAccepted}
+              onClick={() => setTermsAccepted(!termsAccepted)}
+              className="w-5 h-5 rounded border-2 flex items-center justify-center shrink-0 transition-colors"
+              style={{
+                borderColor: termsAccepted ? "#27a44d" : "color-mix(in srgb, var(--color-text-muted) 30%, transparent)",
+                backgroundColor: termsAccepted ? "#27a44d" : "transparent",
+              }}
+            >
+              {termsAccepted && (
+                <svg className="w-3 h-3 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={3} d="M5 13l4 4L19 7" />
+                </svg>
+              )}
+            </button>
+            <input type="hidden" name="terms" value={termsAccepted ? "1" : ""} />
+            <span className="font-semibold cursor-pointer" style={{ color: "var(--color-text)" }} onClick={() => setTermsAccepted(!termsAccepted)}>
               {t("termsAccept", { hotel: hotelName })}
             </span>
-          </label>
+          </div>
         </div>
 
         {/* Captcha */}