diff --git a/apps/web/src/app/styles.css b/apps/web/src/app/styles.css
index 7c7743e..66105fa 100644
--- a/apps/web/src/app/styles.css
+++ b/apps/web/src/app/styles.css
@@ -5,10 +5,8 @@
 @source "../../../../packages/ui/src/**/*.{ts,tsx}";
 
 @import "./styles/base.css";
-@import "./styles/layout.css";
 
-/* Components */
-@import "./styles/components/topbar.css";
+/* Components (layout.css, topbar.css → inline Tailwind) */
 @import "./styles/components/panels.css";
 @import "./styles/components/toggles.css";
 @import "./styles/components/speed.css";
diff --git a/apps/web/src/app/styles/base.css b/apps/web/src/app/styles/base.css
index ab0a2c2..2165e4c 100644
--- a/apps/web/src/app/styles/base.css
+++ b/apps/web/src/app/styles/base.css
@@ -1,12 +1,6 @@
-/* Google Fonts loaded via index.html <link> for optimal performance */
-
-* {
-  margin: 0;
-  padding: 0;
-  box-sizing: border-box;
-}
-
-/* CSS variables are now defined in @wing/ui/theme/tokens.css */
+/* Google Fonts: loaded via index.html <link> */
+/* CSS Reset: handled by Tailwind preflight */
+/* CSS Variables: defined in @wing/ui/theme/tokens.css */
 
 html,
 body {
diff --git a/apps/web/src/app/styles/components/topbar.css b/apps/web/src/app/styles/components/topbar.css
deleted file mode 100644
index dcb52c8..0000000
--- a/apps/web/src/app/styles/components/topbar.css
+++ /dev/null
@@ -1,84 +0,0 @@
-.topbar {
-  grid-column: 1/-1;
-  background: var(--panel);
-  border-bottom: 1px solid var(--border);
-  display: flex;
-  align-items: center;
-  padding: 0 14px;
-  gap: 10px;
-  z-index: 1000;
-}
-
-.topbar .logo {
-  font-size: 14px;
-  font-weight: 800;
-  display: flex;
-  align-items: center;
-  gap: 6px;
-  white-space: nowrap;
-}
-
-.topbar .logo span {
-  color: var(--accent);
-}
-
-.topbar .stats {
-  display: flex;
-  gap: 14px;
-  margin-left: auto;
-  flex-wrap: wrap;
-  justify-content: flex-end;
-}
-
-.topbar .stat {
-  font-size: 10px;
-  color: var(--muted);
-  display: flex;
-  align-items: center;
-  gap: 4px;
-}
-
-.topbar .stat b {
-  color: var(--text);
-  font-size: 12px;
-}
-
-.topbar .time {
-  font-size: 10px;
-  color: var(--accent);
-  font-weight: 600;
-  margin-left: 10px;
-  white-space: nowrap;
-}
-
-.topbar-user {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  margin-left: 10px;
-  flex-shrink: 0;
-}
-
-.topbar-user__name {
-  font-size: 10px;
-  color: var(--text);
-  font-weight: 500;
-  white-space: nowrap;
-}
-
-.topbar-user__logout {
-  font-size: 9px;
-  color: var(--muted);
-  background: none;
-  border: 1px solid var(--border);
-  border-radius: 3px;
-  padding: 2px 6px;
-  cursor: pointer;
-  transition: all 0.15s;
-  white-space: nowrap;
-}
-
-.topbar-user__logout:hover {
-  color: var(--text);
-  border-color: var(--accent);
-}
diff --git a/apps/web/src/app/styles/layout.css b/apps/web/src/app/styles/layout.css
deleted file mode 100644
index 18b1ec4..0000000
--- a/apps/web/src/app/styles/layout.css
+++ /dev/null
@@ -1,30 +0,0 @@
-.app {
-  display: grid;
-  grid-template-columns: 310px 1fr;
-  grid-template-rows: 44px 1fr;
-  height: 100vh;
-}
-
-.sidebar {
-  background: var(--panel);
-  border-right: 1px solid var(--border);
-  overflow-y: auto;
-  display: flex;
-  flex-direction: column;
-}
-
-.map-area {
-  position: relative;
-  background: #010610;
-}
-
-@media (max-width: 920px) {
-  .app {
-    grid-template-columns: 1fr;
-    grid-template-rows: 44px 1fr;
-  }
-
-  .sidebar {
-    display: none;
-  }
-}
diff --git a/apps/web/src/pages/dashboard/DashboardPage.tsx b/apps/web/src/pages/dashboard/DashboardPage.tsx
index 8ab706c..aa4cf77 100644
--- a/apps/web/src/pages/dashboard/DashboardPage.tsx
+++ b/apps/web/src/pages/dashboard/DashboardPage.tsx
@@ -245,7 +245,7 @@ export function DashboardPage() {
 
   // ── Render ──
   return (
-    <div className="app">
+    <div className="grid h-screen grid-cols-[310px_1fr] grid-rows-[44px_1fr] max-md:grid-cols-[1fr]">
       <Topbar
         total={legacyVesselsAll.length}
         fishing={fishingCount}
@@ -285,7 +285,7 @@ export function DashboardPage() {
         legacyIndex={legacyIndex}
       />
 
-      <div className="map-area">
+      <div className="relative bg-[#010610]">
         {showMapLoader ? (
           <div className="map-loader-overlay" role="status" aria-live="polite">
             <div className="map-loader-overlay__panel">
diff --git a/apps/web/src/pages/dashboard/DashboardSidebar.tsx b/apps/web/src/pages/dashboard/DashboardSidebar.tsx
index 82ef6b3..d6527f6 100644
--- a/apps/web/src/pages/dashboard/DashboardSidebar.tsx
+++ b/apps/web/src/pages/dashboard/DashboardSidebar.tsx
@@ -94,7 +94,7 @@ export function DashboardSidebar({
   } = state;
 
   return (
-    <div className="sidebar">
+    <div className="flex flex-col overflow-y-auto border-r border-wing-border bg-wing-surface max-md:hidden">
       <div className="sb">
         <div className="sb-t">업종 필터</div>
         <div className="tog">
diff --git a/apps/web/src/widgets/topbar/Topbar.tsx b/apps/web/src/widgets/topbar/Topbar.tsx
index da1230a..f100743 100644
--- a/apps/web/src/widgets/topbar/Topbar.tsx
+++ b/apps/web/src/widgets/topbar/Topbar.tsx
@@ -17,43 +17,52 @@ export function Topbar({ total, fishing, transit, pairLinks, alarms, pollingStat
   const statusColor =
     pollingStatus === "ready" ? "#22C55E" : pollingStatus === "loading" ? "#F59E0B" : pollingStatus === "error" ? "#EF4444" : "var(--muted)";
   return (
-    <div className="topbar">
-      <div className="logo" onClick={onLogoClick} style={{ cursor: onLogoClick ? "pointer" : undefined }} title={adminMode ? "ADMIN" : undefined}>
-        🛰 <span>WING</span> 조업감시·선단연관 {adminMode ? <span style={{ fontSize: 10, color: "#F59E0B" }}>(ADMIN)</span> : null}
+    <div className="col-span-full flex items-center gap-2.5 border-b border-wing-border bg-wing-surface px-3.5 z-[1000]">
+      <div
+        className="flex items-center gap-1.5 whitespace-nowrap text-sm font-extrabold"
+        onClick={onLogoClick}
+        style={{ cursor: onLogoClick ? "pointer" : undefined }}
+        title={adminMode ? "ADMIN" : undefined}
+      >
+        🛰 <span className="text-wing-accent">WING</span> 조업감시·선단연관{" "}
+        {adminMode ? <span className="text-[10px] text-wing-warning">(ADMIN)</span> : null}
       </div>
-      <div className="stats">
-        <div className="stat">
+      <div className="ml-auto flex flex-wrap justify-end gap-3.5">
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
           DATA <b style={{ color: "#22C55E" }}>API</b>
         </div>
-        <div className="stat">
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
           POLL{" "}
           <b style={{ color: statusColor }}>
             {pollingStatus.toUpperCase()}
             {lastFetchMinutes ? `(${lastFetchMinutes}m)` : ""}
           </b>
         </div>
-        <div className="stat">
-          전체 <b>{total}</b>척
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
+          전체 <b className="text-xs text-wing-text">{total}</b>척
         </div>
-        <div className="stat">
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
           조업 <b style={{ color: "#22C55E" }}>{fishing}</b>
         </div>
-        <div className="stat">
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
           항해 <b style={{ color: "#3B82F6" }}>{transit}</b>
         </div>
-        <div className="stat">
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
           쌍연결 <b style={{ color: "#F59E0B" }}>{pairLinks}</b>
         </div>
-        <div className="stat">
+        <div className="flex items-center gap-1 text-[10px] text-wing-muted">
           경고 <b style={{ color: "#EF4444" }}>{alarms}</b>
         </div>
       </div>
-      <div className="time">{clock}</div>
+      <div className="ml-2.5 whitespace-nowrap text-[10px] font-semibold text-wing-accent">{clock}</div>
       {userName && (
-        <div className="topbar-user">
-          <span className="topbar-user__name">{userName}</span>
+        <div className="ml-2.5 flex shrink-0 items-center gap-2">
+          <span className="whitespace-nowrap text-[10px] font-medium text-wing-text">{userName}</span>
           {onLogout && (
-            <button className="topbar-user__logout" onClick={onLogout}>
+            <button
+              className="cursor-pointer whitespace-nowrap rounded border border-wing-border bg-transparent px-1.5 py-0.5 text-[9px] text-wing-muted transition-all duration-150 hover:border-wing-accent hover:text-wing-text"
+              onClick={onLogout}
+            >
               로그아웃
             </button>
           )}