(SP: 2) [Frontend] Q&A UI refresh

frontend/app/[locale]/q&a/page.tsx

@@ -1,6 +1,7 @@
 import { Suspense } from 'react';
 import { getTranslations } from 'next-intl/server';
 import QaSection from '@/components/q&a/QaSection';
+import { DynamicGridBackground } from '@/components/shared/DynamicGridBackground';
 
 export async function generateMetadata({
   params,
@@ -16,12 +17,30 @@ export async function generateMetadata({
   };
 }
 
-export default function QAPage() {
+export default async function QAPage({
+  params,
+}: {
+  params: Promise<{ locale: string }>;
+}) {
+  const { locale } = await params;
+  const t = await getTranslations({ locale, namespace: 'qa' });
+
   return (
-    <main className="mx-auto max-w-7xl px-4 py-10 sm:px-6 lg:px-8">
-      <Suspense fallback={<>...</>}>
-        <QaSection />
-      </Suspense>
-    </main>
+    <DynamicGridBackground className="bg-gray-50 transition-colors duration-300 dark:bg-transparent py-10">
+      <main className="relative z-10 mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
+        <div className="mb-8">
+          <p className="text-sm text-[var(--accent-primary)] font-semibold">
+            {t('pretitle')}
+          </p>
+          <h1 className="text-3xl font-bold">{t('title')}</h1>
+          <p className="text-gray-600 dark:text-gray-400">
+            {t('subtitle')}
+          </p>
+        </div>
+        <Suspense fallback={<>...</>}>
+          <QaSection />
+        </Suspense>
+      </main>
+    </DynamicGridBackground>
   );
 }

frontend/components/about/HeroSection.tsx

@@ -1,23 +1,12 @@
 "use client"
 
-import { useRef } from "react"
-import { motion, useMotionTemplate, useMotionValue } from "framer-motion"
+import { motion } from "framer-motion"
 import { CheckCircle, Users, Star, Linkedin, ArrowDown } from "lucide-react"
 import { InteractiveGame } from "./InteractiveGame"
 import type { PlatformStats } from "@/lib/about/stats"
+import { DynamicGridBackground } from "@/components/shared/DynamicGridBackground"
 
 export function HeroSection({ stats }: { stats?: PlatformStats }) {
-  const containerRef = useRef<HTMLElement>(null)
-
-  const mouseX = useMotionValue(0)
-  const mouseY = useMotionValue(0)
-
-  function handleMouseMove({ currentTarget, clientX, clientY }: React.MouseEvent) {
-    const { left, top } = currentTarget.getBoundingClientRect()
-    mouseX.set(clientX - left)
-    mouseY.set(clientY - top)
-  }
-
   const data = stats || {
     questionsSolved: "850+",
     githubStars: "120+",
@@ -26,33 +15,7 @@ export function HeroSection({ stats }: { stats?: PlatformStats }) {
   }
 
   return (
-    <section
-      ref={containerRef}
-      onMouseMove={handleMouseMove}
-      className="relative flex min-h-[calc(100svh)] items-center justify-center overflow-hidden bg-gray-50 transition-colors duration-300 dark:bg-transparent pt-20 pb-10 group"
-    >
-
-      <div className="pointer-events-none absolute inset-0">
-         <div className="absolute inset-0 bg-[linear-gradient(to_right,#8080800a_1px,transparent_1px),linear-gradient(to_bottom,#8080800a_1px,transparent_1px)] bg-[size:40px_40px] [mask-image:radial-gradient(ellipse_80%_80%_at_50%_50%,#000_70%,transparent_100%)]" />
-      </div>
-
-      <motion.div
-        className="pointer-events-none absolute inset-0 opacity-0 group-hover:opacity-100 transition-opacity duration-300"
-        style={{
-          maskImage: useMotionTemplate`radial-gradient(300px circle at ${mouseX}px ${mouseY}px, black, transparent)`,
-          WebkitMaskImage: useMotionTemplate`radial-gradient(300px circle at ${mouseX}px ${mouseY}px, black, transparent)`,
-        }}
-      >
-         <div className="absolute inset-0 bg-[linear-gradient(to_right,#1e5eff_1px,transparent_1px),linear-gradient(to_bottom,#1e5eff_1px,transparent_1px)] dark:bg-[linear-gradient(to_right,#ff2d55_1px,transparent_1px),linear-gradient(to_bottom,#ff2d55_1px,transparent_1px)] bg-[size:40px_40px] opacity-20 dark:opacity-30" />
-      </motion.div>
-
-      <div className="pointer-events-none absolute inset-0">
-         <div className="absolute left-1/2 top-1/2 h-[70svh] w-[70svw] min-h-[500px] min-w-[500px] md:h-[900px] md:w-[900px] -translate-x-1/2 -translate-y-1/2 rounded-full 
-            bg-[#1e5eff]/10 blur-[120px] mix-blend-multiply 
-            dark:bg-[#ff2d55]/10 dark:mix-blend-screen transition-all duration-500" 
-         />
-      </div>
-
+    <DynamicGridBackground className="flex min-h-[calc(100svh)] items-center justify-center bg-gray-50 transition-colors duration-300 dark:bg-transparent pt-20 pb-10">
       <div className="relative z-10 grid w-full max-w-[1600px] grid-cols-1 items-center px-4 sm:px-6 lg:px-8 xl:grid-cols-12 xl:gap-8 h-full">
 
         <div className="hidden h-full flex-col justify-center gap-24 xl:col-span-3 xl:flex">
@@ -121,7 +84,7 @@ export function HeroSection({ stats }: { stats?: PlatformStats }) {
         </div>
 
       </div>
-    </section>
+    </DynamicGridBackground>
   )
 }
 
@@ -154,4 +117,4 @@ function MobileStatItem({ icon: Icon, color, bg, label, value }: any) {
             </div>
         </div>
     )
-}
+}

frontend/components/q&a/Pagination.tsx

@@ -1,26 +1,49 @@
 'use client';
 
+import { useEffect, useState } from 'react';
 import { useTranslations } from 'next-intl';
 import { cn } from '@/lib/utils';
 
 interface PaginationProps {
   currentPage: number;
   totalPages: number;
   onPageChange: (page: number) => void;
+  accentColor: string;
+}
+
+function hexToRgba(hex: string, alpha: number): string {
+  const normalized = hex.replace('#', '');
+  if (normalized.length !== 6) return `rgba(0, 0, 0, ${alpha})`;
+  const r = parseInt(normalized.slice(0, 2), 16);
+  const g = parseInt(normalized.slice(2, 4), 16);
+  const b = parseInt(normalized.slice(4, 6), 16);
+  return `rgba(${r}, ${g}, ${b}, ${alpha})`;
 }
 
 export function Pagination({
   currentPage,
   totalPages,
   onPageChange,
+  accentColor,
 }: PaginationProps) {
   const t = useTranslations('qa.pagination');
+  const accentSoft = hexToRgba(accentColor, 0.16);
+  const accentGlow = hexToRgba(accentColor, 0.22);
+  const [isMobile, setIsMobile] = useState(false);
+
+  useEffect(() => {
+    const media = window.matchMedia('(max-width: 640px)');
+    const update = () => setIsMobile(media.matches);
+    update();
+    media.addEventListener('change', update);
+    return () => media.removeEventListener('change', update);
+  }, []);
 
   if (totalPages <= 1) return null;
 
   const getPageNumbers = (): (number | 'ellipsis')[] => {
     const pages: (number | 'ellipsis')[] = [];
-    const maxVisible = 5;
+    const maxVisible = isMobile ? 3 : 5;
 
     if (totalPages <= maxVisible + 2) {
       for (let i = 1; i <= totalPages; i++) {
@@ -59,25 +82,32 @@ export function Pagination({
 
   return (
     <nav
-      className="flex items-center justify-center gap-1 mt-8"
+      className="flex items-center justify-center gap-1 mt-8 sm:gap-2"
+      style={
+        {
+          '--qa-accent': accentColor,
+          '--qa-accent-soft': accentSoft,
+          '--qa-accent-glow': accentGlow,
+        } as React.CSSProperties
+      }
       aria-label={t('label')}
     >
       <button
         onClick={() => onPageChange(currentPage - 1)}
         disabled={currentPage === 1}
         className={cn(
-          'px-3 py-2 text-sm font-medium rounded-lg transition-colors',
+          'px-2 py-2 text-sm font-medium rounded-lg transition-colors sm:px-3',
           'border border-gray-300 dark:border-gray-700',
           currentPage === 1
             ? 'text-gray-400 dark:text-gray-600 cursor-not-allowed'
-            : 'text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-800'
+            : 'text-gray-700 dark:text-gray-300 hover:bg-[var(--qa-accent-soft)]'
         )}
         aria-label={t('previousPage')}
       >
-        ← {t('previous')}
+        ← <span className="hidden sm:inline">{t('previous')}</span>
       </button>
 
-      <div className="flex items-center gap-1 mx-2">
+      <div className="flex items-center gap-1 mx-1 sm:mx-2">
         {pages.map((page, index) =>
           page === 'ellipsis' ? (
             <span
@@ -92,11 +122,20 @@ export function Pagination({
               onClick={() => onPageChange(page)}
               disabled={page === currentPage}
               className={cn(
-                'min-w-[40px] px-3 py-2 text-sm font-medium rounded-lg transition-colors',
+                'min-w-[40px] px-3 py-2 text-sm font-medium rounded-lg transition-colors border border-transparent overflow-hidden',
                 page === currentPage
-                  ? 'bg-blue-600 text-white'
-                  : 'text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-800'
+                  ? 'shadow-sm text-gray-700 dark:text-gray-300'
+                  : 'text-gray-700 dark:text-gray-300 hover:bg-[var(--qa-accent-soft)]'
               )}
+              style={
+                page === currentPage
+                  ? {
+                      backgroundColor: accentSoft,
+                      borderColor: accentColor,
+                      boxShadow: `inset 0 0 18px ${accentGlow}`,
+                    }
+                  : undefined
+              }
               aria-label={t('page', { page })}
               aria-current={page === currentPage ? 'page' : undefined}
             >
@@ -110,16 +149,16 @@ export function Pagination({
         onClick={() => onPageChange(currentPage + 1)}
         disabled={currentPage === totalPages}
         className={cn(
-          'px-3 py-2 text-sm font-medium rounded-lg transition-colors',
+          'px-2 py-2 text-sm font-medium rounded-lg transition-colors sm:px-3',
           'border border-gray-300 dark:border-gray-700',
           currentPage === totalPages
             ? 'text-gray-400 dark:text-gray-600 cursor-not-allowed'
-            : 'text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-800'
+            : 'text-gray-700 dark:text-gray-300 hover:bg-[var(--qa-accent-soft)]'
         )}
         aria-label={t('nextPage')}
       >
-        {t('next')} →
+        <span className="hidden sm:inline">{t('next')}</span> →
       </button>
     </nav>
   );
-}
+}

frontend/components/q&a/QaSection.tsx

@@ -1,84 +1,74 @@
 'use client';
 
 import { useTranslations } from 'next-intl';
-import { Search, X } from 'lucide-react';
-
 import AccordionList from '@/components/q&a/AccordionList';
 import { Pagination } from '@/components/q&a/Pagination';
-import { Tabs, TabsList, TabsTrigger, TabsContent } from '@/components/ui/tabs';
+import { Tabs, TabsList, TabsContent } from '@/components/ui/tabs';
 import { categoryData } from '@/data/category';
 import { useQaTabs } from '@/components/q&a/useQaTabs';
+import { QaTabButton } from '@/components/q&a/QaTabButton';
+import { qaTabStyles } from '@/data/qaTabs';
+import { cn } from '@/lib/utils';
+import type { CategorySlug } from '@/components/q&a/types';
 
 export default function TabsSection() {
   const t = useTranslations('qa');
   const {
     active,
     currentPage,
-    debouncedSearch,
     handleCategoryChange,
     handlePageChange,
     isLoading,
     items,
     localeKey,
-    searchQuery,
-    setSearchQuery,
     totalPages,
-    clearSearch,
   } = useQaTabs();
 
   return (
     <div className="w-full">
-      <div className="relative mb-6">
-        <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-5 w-5 text-gray-400" />
-
-        <input
-          type="text"
-          value={searchQuery}
-          onChange={e => setSearchQuery(e.target.value)}
-          placeholder={t('searchPlaceholder')}
-          className="w-full pl-10 pr-10 py-3 border rounded-lg"
-        />
-
-        {searchQuery && (
-          <button
-            onClick={clearSearch}
-            className="absolute right-3 top-1/2 -translate-y-1/2"
-          >
-            <X className="h-5 w-5" />
-          </button>
-        )}
-      </div>
-
       <Tabs value={active} onValueChange={handleCategoryChange}>
-        <TabsList className="!bg-transparent !p-0 !h-auto !w-full grid grid-cols-3 sm:grid-cols-5 lg:grid-cols-10 mb-6 gap-2">
-          {categoryData.map(category => (
-            <TabsTrigger
-              key={category.slug}
-              value={category.slug}
-              className="data-[state=active]:bg-blue-600 data-[state=active]:text-white bg-gray-100 dark:bg-gray-800 hover:bg-gray-200 dark:hover:bg-gray-700 rounded-lg px-3 py-2 text-sm font-medium transition-colors"
-            >
-              {category.translations[localeKey] ??
+        <TabsList className="!bg-transparent !p-0 !h-auto !w-full flex flex-wrap items-stretch justify-start gap-3 mb-6">
+          {categoryData.map(category => {
+            const slug = category.slug as keyof typeof qaTabStyles;
+            const value = slug as CategorySlug;
+            return (
+            <QaTabButton
+              key={slug}
+              value={value}
+              label={
+                category.translations[localeKey] ??
                 category.translations.en ??
-                category.slug}
-            </TabsTrigger>
-          ))}
+                value
+              }
+              style={qaTabStyles[slug]}
+              isActive={active === value}
+            />
+            );
+          })}
         </TabsList>
 
         {categoryData.map(category => (
           <TabsContent key={category.slug} value={category.slug}>
-            {isLoading ? (
+            {isLoading && (
               <div className="flex justify-center py-12">
                 <div className="animate-spin h-8 w-8 border-b-2" />
               </div>
-            ) : items.length ? (
-              <AccordionList items={items} />
-            ) : (
-              <p className="text-center py-12">
-                {debouncedSearch
-                  ? t('noResults', { query: debouncedSearch })
-                  : t('noQuestions')}
-              </p>
             )}
+            <div
+              className={cn(
+                'transition-opacity duration-300',
+                isLoading ? 'opacity-0' : 'opacity-100'
+              )}
+              aria-busy={isLoading}
+            >
+              {items.length ? (
+                <AccordionList items={items} />
+              ) : (
+                <p className="text-center py-12">
+                  {t('noQuestions')}
+                </p>
+              )}
+            </div>
           </TabsContent>
         ))}
       </Tabs>
@@ -88,6 +78,7 @@ export default function TabsSection() {
           currentPage={currentPage}
           totalPages={totalPages}
           onPageChange={handlePageChange}
+          accentColor={qaTabStyles[active as keyof typeof qaTabStyles].accent}
         />
       )}
     </div>