Unify color scheme: orange primary, rose accent, gray neutral

- Primary (orange): search button, active filters, selected cards,
  channel tags, links, input focus ring
- Accent (rose): favorites/heart only
- Neutral (gray): price tags, inactive buttons
- Semantic colors preserved: red for 폐업, yellow for 임시휴업

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/components/RestaurantDetail.tsx

@@ -56,7 +56,7 @@ export default function RestaurantDetail({
               onClick={handleToggleFavorite}
               disabled={favLoading}
               className={`text-xl leading-none transition-colors ${
-                favorited ? "text-red-500" : "text-gray-300 hover:text-red-400"
+                favorited ? "text-rose-500" : "text-gray-300 hover:text-rose-400"
               }`}
               title={favorited ? "찜 해제" : "찜하기"}
             >
@@ -116,7 +116,7 @@ export default function RestaurantDetail({
         {restaurant.phone && (
           <p>
             <span className="text-gray-500">전화:</span>{" "}
-            <a href={`tel:${restaurant.phone}`} className="text-blue-600 hover:underline">
+            <a href={`tel:${restaurant.phone}`} className="text-orange-600 hover:underline">
               {restaurant.phone}
             </a>
           </p>
@@ -127,7 +127,7 @@ export default function RestaurantDetail({
               href={`https://www.google.com/maps/place/?q=place_id:${restaurant.google_place_id}`}
               target="_blank"
               rel="noopener noreferrer"
-              className="text-blue-600 hover:underline text-xs"
+              className="text-orange-600 hover:underline text-xs"
             >
               Google Maps에서 보기
             </a>
@@ -161,7 +161,7 @@ export default function RestaurantDetail({
               <div key={v.video_id} className="border rounded-lg p-3">
                 <div className="flex items-center gap-2 mb-1">
                   {v.channel_name && (
-                    <span className="inline-block px-1.5 py-0.5 bg-red-50 text-red-600 rounded text-[10px] font-medium">
+                    <span className="inline-block px-1.5 py-0.5 bg-orange-50 text-orange-600 rounded text-[10px] font-medium">
                       {v.channel_name}
                     </span>
                   )}
@@ -175,7 +175,7 @@ export default function RestaurantDetail({
                   href={v.url}
                   target="_blank"
                   rel="noopener noreferrer"
-                  className="block text-sm font-medium text-blue-600 hover:underline"
+                  className="block text-sm font-medium text-orange-600 hover:underline"
                 >
                   {v.title}
                 </a>

frontend/src/components/RestaurantList.tsx

@@ -37,7 +37,7 @@ export default function RestaurantList({
           onClick={() => onSelect(r)}
           className={`w-full text-left p-3 rounded-xl shadow-sm border transition-all hover:shadow-md hover:-translate-y-0.5 ${
             selectedId === r.id
-              ? "bg-blue-50 border-blue-300 shadow-blue-100"
+              ? "bg-orange-50 border-orange-300 shadow-orange-100"
               : "bg-white border-gray-100 hover:bg-gray-50"
           }`}
         >
@@ -57,7 +57,7 @@ export default function RestaurantList({
               <span className="px-1.5 py-0.5 bg-gray-100 rounded text-gray-600">{r.cuisine_type}</span>
             )}
             {r.price_range && (
-              <span className="px-1.5 py-0.5 bg-green-50 rounded text-green-700">{r.price_range}</span>
+              <span className="px-1.5 py-0.5 bg-gray-50 rounded text-gray-600">{r.price_range}</span>
             )}
           </div>
           {r.region && (
@@ -83,7 +83,7 @@ export default function RestaurantList({
               {r.channels.map((ch) => (
                 <span
                   key={ch}
-                  className="px-1.5 py-0.5 bg-red-50 text-red-600 rounded-full text-[10px] font-medium"
+                  className="px-1.5 py-0.5 bg-orange-50 text-orange-600 rounded-full text-[10px] font-medium"
                 >
                   {ch}
                 </span>

frontend/src/components/ReviewSection.tsx

@@ -124,7 +124,7 @@ function ReviewForm({
         <button
           type="submit"
           disabled={submitting}
-          className="px-3 py-1 bg-blue-600 text-white text-sm rounded hover:bg-blue-700 disabled:opacity-50"
+          className="px-3 py-1 bg-orange-500 text-white text-sm rounded hover:bg-orange-600 disabled:opacity-50"
         >
           {submitting ? "저장 중..." : submitLabel}
         </button>
@@ -225,7 +225,7 @@ export default function ReviewSection({ restaurantId }: ReviewSectionProps) {
           {user && !myReview && !showForm && (
             <button
               onClick={() => setShowForm(true)}
-              className="mb-3 px-3 py-1 bg-blue-600 text-white text-sm rounded hover:bg-blue-700"
+              className="mb-3 px-3 py-1 bg-orange-500 text-white text-sm rounded hover:bg-orange-600"
             >
               리뷰 작성
             </button>

frontend/src/components/SearchBar.tsx

@@ -25,7 +25,7 @@ export default function SearchBar({ onSearch, isLoading }: SearchBarProps) {
         value={query}
         onChange={(e) => setQuery(e.target.value)}
         placeholder="식당, 지역, 음식..."
-        className="flex-1 min-w-0 px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 text-sm"
+        className="flex-1 min-w-0 px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-orange-400 text-sm"
       />
       <select
         value={mode}
@@ -39,7 +39,7 @@ export default function SearchBar({ onSearch, isLoading }: SearchBarProps) {
       <button
         type="submit"
         disabled={isLoading || !query.trim()}
-        className="shrink-0 px-3 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 disabled:opacity-50 text-sm"
+        className="shrink-0 px-3 py-2 bg-orange-500 text-white rounded-lg hover:bg-orange-600 disabled:opacity-50 text-sm"
       >
         {isLoading ? "..." : "검색"}
       </button>