frontend/wing-gis-web/src/App.css

@@ -63,11 +63,11 @@ body {
 
 /* deck.gl tooltip */
 .deck-tooltip{
-  background:rgba(26,58,74,.96)!important;
-  color:#fff!important;
-  border:1px solid rgba(0,147,178,.35)!important;
+  background:rgba(255,255,255,.97)!important;
+  color:#1a2e38!important;
+  border:1px solid #d4dde2!important;
   border-radius:6px!important;
-  box-shadow:0 6px 20px rgba(0,0,0,.35)!important;
+  box-shadow:0 4px 16px rgba(0,0,0,.15)!important;
   padding:7px 9px!important;
   font-size:12px!important;
   line-height:1.35!important;

frontend/wing-gis-web/src/components/map/MapViewML.tsx

@@ -30,6 +30,8 @@ const MapViewML: React.FC<MapViewMLProps> = ({ children }) => {
   const [scaleText, setScaleText] = React.useState('1:50,000');
   const [zoom, setZoom] = React.useState(10);
 
+  const aisLoading = useStore((s) => s.aisLoading);
+  const aisEmpty = useStore((s) => s.aisTargets.size === 0);
   const photoModal = useStore((s) => s.photoModal);
   const openPhotoModal = useStore((s) => s.openPhotoModal);
   const closePhotoModal = useStore((s) => s.closePhotoModal);
@@ -97,6 +99,20 @@ const MapViewML: React.FC<MapViewMLProps> = ({ children }) => {
         <ScaleBar text={`${scaleText} ━━━ 5 km`} />
         <MapLegend />
         {children}
+
+        {(aisLoading || aisEmpty) && (
+          <>
+            <div style={{ position: 'absolute', inset: 0, background: 'rgba(255,255,255,.45)', zIndex: 15, pointerEvents: 'none' }} />
+            <div style={{ position: 'absolute', top: 12, left: '50%', transform: 'translateX(-50%)', background: 'rgba(26,58,74,.88)', color: '#fff', padding: '8px 20px', borderRadius: 6, fontSize: 13, fontWeight: 500, display: 'flex', alignItems: 'center', gap: 10, zIndex: 20, boxShadow: '0 2px 8px rgba(0,0,0,.25)', pointerEvents: 'none' }}>
+              <svg width="18" height="18" viewBox="0 0 24 24" style={{ animation: 'spin 1s linear infinite' }}>
+                <circle cx="12" cy="12" r="10" fill="none" stroke="rgba(255,255,255,.3)" strokeWidth="3" />
+                <path d="M12 2a10 10 0 0 1 10 10" fill="none" stroke="#fff" strokeWidth="3" strokeLinecap="round" />
+              </svg>
+              선박 신호 수신 중...
+            </div>
+          </>
+        )}
+
         <CoordStatusBar coord={coord} zoom={zoom} scale={scaleText} />
 
         {photoModal && (

frontend/wing-gis-web/src/hooks/useAisPolling.ts

@@ -10,6 +10,7 @@ const RETENTION_MS = 120 * 60 * 1000;
 
 export function useAisPolling() {
   const setAisTargets = useStore((s) => s.setAisTargets);
+  const setAisLoading = useStore((s) => s.setAisLoading);
   const storeRef = useRef(useStore.getState);
 
   useEffect(() => {
@@ -19,6 +20,7 @@ export function useAisPolling() {
   useEffect(() => {
     const ac = new AbortController();
     let timer: ReturnType<typeof setInterval> | null = null;
+    let isInitial = true;
 
     function mergeAndPrune(incoming: AisTarget[]) {
       const prev = storeRef.current().aisTargets;
@@ -43,12 +45,18 @@ export function useAisPolling() {
 
     async function poll(minutes: number) {
       try {
+        if (isInitial) setAisLoading(true);
         const targets = await fetchRecentPositions(minutes, ac.signal);
         mergeAndPrune(targets);
       } catch (err) {
         if ((err as Error).name !== 'AbortError') {
           console.warn('[AIS] Poll failed:', err);
         }
+      } finally {
+        if (isInitial) {
+          setAisLoading(false);
+          isInitial = false;
+        }
       }
     }
 
@@ -61,5 +69,5 @@ export function useAisPolling() {
       ac.abort();
       if (timer) clearInterval(timer);
     };
-  }, [setAisTargets]);
+  }, [setAisTargets, setAisLoading]);
 }

frontend/wing-gis-web/src/hooks/useStore.ts

@@ -28,6 +28,8 @@ interface AppState {
   // AIS 실시간 데이터
   aisTargets: Map<number, AisTarget>;
   setAisTargets: (targets: Map<number, AisTarget>) => void;
+  aisLoading: boolean;
+  setAisLoading: (loading: boolean) => void;
 
   // 선박 사진 모달
   photoModal: { imo: number; name: string; imagePath: string; imageCount: number } | null;
@@ -72,6 +74,8 @@ export const useStore = create<AppState>((set) => ({
 
   aisTargets: new Map(),
   setAisTargets: (targets) => set({ aisTargets: targets }),
+  aisLoading: true,
+  setAisLoading: (loading) => set({ aisLoading: loading }),
 
   photoModal: null,
   openPhotoModal: (info) => set({ photoModal: info }),

frontend/wing-gis-web/src/lib/map/mapConstants.ts

@@ -1,10 +1,10 @@
 import type maplibregl from 'maplibre-gl';
 
-/** 인천 해역 기본 중심 좌표 [lng, lat] */
-export const DEFAULT_CENTER: [number, number] = [126.7052, 37.4563];
+/** 대한민국 전역 중심 좌표 [lng, lat] */
+export const DEFAULT_CENTER: [number, number] = [127.8, 35.5];
 
-/** 기본 줌 레벨 */
-export const DEFAULT_ZOOM = 10;
+/** 기본 줌 레벨 (대한민국 전역 표시) */
+export const DEFAULT_ZOOM = 7;
 
 /** Martin ENC 타일 서버 프록시 경로 */
 export const MARTIN_BASE_PATH = '/martin';