소스 수정

frontend/assets/css/main.css

@@ -38,6 +38,10 @@
   --sidebar-active-bg: #e8e8e8;
   --sidebar-active-border: #4a90d9;
   
+  /* 액센트 색상 */
+  --accent-color: #3b82f6;
+  --accent-bg: #eff6ff;
+  
   /* 기타 */
   --link-color: #4a90d9;
   --time-color: #4a90d9;
@@ -110,6 +114,10 @@
   --sidebar-active-bg: #3a3a3a;
   --sidebar-active-border: #6b9dc4;
   
+  /* 액센트 색상 */
+  --accent-color: #60a5fa;
+  --accent-bg: #1e3a5f;
+  
   /* 기타 */
   --link-color: #6b9dc4;
   --time-color: #6b9dc4;

frontend/components/ServerPortlet.vue

@@ -27,13 +27,11 @@
     </div>
     
     <div class="server-grid">
-      <!-- 서버 유닛들 -->
       <div 
         v-for="server in servers" 
         :key="server.target_id"
         :class="['server-unit', server.level]"
       >
-        <!-- 서버 정보 (왼쪽) -->
         <div class="server-info" @dblclick="goToServerStatus(server.target_id)">
           <div class="server-name">
             <span class="level-icon">{{ levelIcon(server.level) }}</span>
@@ -47,21 +45,27 @@
               <div class="progress-bar">
                 <div :class="['progress-fill', server.cpu_level]" :style="{ width: (server.cpu_percent || 0) + '%' }"></div>
               </div>
-              <span :class="['metric-value', server.cpu_level]">{{ server.cpu_percent?.toFixed(0) || '-' }}</span>
+              <span :class="['metric-value', server.cpu_level, { 'value-changed': isChanged(server.target_id, 'cpu') }]">
+                {{ server.cpu_percent?.toFixed(0) || '-' }}
+              </span>
             </div>
             <div class="metric-row">
               <span class="metric-label">MEM</span>
               <div class="progress-bar">
                 <div :class="['progress-fill', server.memory_level]" :style="{ width: (server.memory_percent || 0) + '%' }"></div>
               </div>
-              <span :class="['metric-value', server.memory_level]">{{ server.memory_percent?.toFixed(0) || '-' }}</span>
+              <span :class="['metric-value', server.memory_level, { 'value-changed': isChanged(server.target_id, 'mem') }]">
+                {{ server.memory_percent?.toFixed(0) || '-' }}
+              </span>
             </div>
             <div class="metric-row">
               <span class="metric-label">DISK</span>
               <div class="progress-bar">
                 <div :class="['progress-fill', server.disk_level]" :style="{ width: (server.disk_percent || 0) + '%' }"></div>
               </div>
-              <span :class="['metric-value', server.disk_level]">{{ server.disk_percent?.toFixed(0) || '-' }}</span>
+              <span :class="['metric-value', server.disk_level, { 'value-changed': isChanged(server.target_id, 'disk') }]">
+                {{ server.disk_percent?.toFixed(0) || '-' }}
+              </span>
             </div>
           </template>
           
@@ -73,7 +77,6 @@
           </template>
         </div>
         
-        <!-- 컨테이너 영역 (오른쪽) -->
         <div class="container-area" v-if="server.level !== 'offline'">
           <div 
             v-for="container in sortContainers(server.containers)" 
@@ -93,24 +96,32 @@
                 <div class="card-metric">
                   <span class="label">CPU</span>
                   <div class="mini-bar">
-                    <div :class="['mini-fill', getContainerCpuLevel(container)]" :style="{ width: (container.cpu_percent || 0) + '%' }"></div>
+                    <div :class="['mini-fill', getContainerCpuLevel(container)]" :style="{ width: Math.min(container.cpu_percent || 0, 100) + '%' }"></div>
                   </div>
-                  <span class="value">{{ container.cpu_percent?.toFixed(0) || '-' }}%</span>
+                  <span :class="['value', { 'value-changed': isContainerChanged(server.target_id, container.name, 'cpu') }]">
+                    {{ container.cpu_percent?.toFixed(0) || '-' }}%
+                  </span>
                 </div>
                 <div class="card-metric">
                   <span class="label">MEM</span>
                   <div class="mini-bar">
                     <div :class="['mini-fill', getContainerMemLevel(container)]" :style="{ width: getMemPercent(container) + '%' }"></div>
                   </div>
-                  <span :class="['value', { 'mem-highlight': isMemoryOver1GB(container.memory_usage) }]">{{ formatMemoryShort(container.memory_usage) }}</span>
+                  <span :class="['value', { 'mem-highlight': isMemoryOver1GB(container.memory_usage), 'value-changed': isContainerChanged(server.target_id, container.name, 'mem') }]">
+                    {{ formatMemoryShort(container.memory_usage) }}
+                  </span>
                 </div>
                 <div class="card-metric">
                   <span class="label">↓RX</span>
-                  <span class="value net">{{ formatNetworkShort(container.network_rx) }}</span>
+                  <span :class="['value', 'net', { 'value-changed': isContainerChanged(server.target_id, container.name, 'rx') }]">
+                    {{ formatNetworkShort(container.network_rx) }}
+                  </span>
                 </div>
                 <div class="card-metric">
                   <span class="label">↑TX</span>
-                  <span class="value net">{{ formatNetworkShort(container.network_tx) }}</span>
+                  <span :class="['value', 'net', { 'value-changed': isContainerChanged(server.target_id, container.name, 'tx') }]">
+                    {{ formatNetworkShort(container.network_tx) }}
+                  </span>
                 </div>
               </div>
             </template>
@@ -119,7 +130,6 @@
             </template>
           </div>
           
-          <!-- 컨테이너 없음 -->
           <div class="no-container" v-if="server.containers.length === 0">
             <span>컨테이너 없음</span>
           </div>
@@ -130,6 +140,8 @@
 </template>
 
 <script setup lang="ts">
+import { ref, watch } from 'vue'
+
 interface ContainerStatus {
   name: string
   status: string
@@ -171,7 +183,87 @@ const emit = defineEmits<{
   (e: 'navigate', path: string): void
 }>()
 
-const levelPriority: Record<string, number> = { stopped: 3, critical: 2, danger: 2, warning: 1, normal: 0 }
+// 이전 값 저장 (변경 감지용)
+const prevServerValues = ref<Record<string, Record<string, number | null>>>({})
+const prevContainerValues = ref<Record<string, Record<string, number | null>>>({})
+const changedKeys = ref<Set<string>>(new Set())
+
+// 값 변경 감지
+watch(() => props.servers, (newServers, oldServers) => {
+  if (!oldServers || oldServers.length === 0) {
+    // 초기 로드 시 이전 값 저장
+    newServers.forEach(server => {
+      prevServerValues.value[server.target_id] = {
+        cpu: server.cpu_percent,
+        mem: server.memory_percent,
+        disk: server.disk_percent
+      }
+      server.containers.forEach(c => {
+        const key = `${server.target_id}-${c.name}`
+        prevContainerValues.value[key] = {
+          cpu: c.cpu_percent,
+          mem: c.memory_usage,
+          rx: c.network_rx,
+          tx: c.network_tx
+        }
+      })
+    })
+    return
+  }
+  
+  const newChangedKeys = new Set<string>()
+  
+  newServers.forEach(server => {
+    const prev = prevServerValues.value[server.target_id] || {}
+    
+    // 서버 값 비교
+    if (prev.cpu !== server.cpu_percent) newChangedKeys.add(`server-${server.target_id}-cpu`)
+    if (prev.mem !== server.memory_percent) newChangedKeys.add(`server-${server.target_id}-mem`)
+    if (prev.disk !== server.disk_percent) newChangedKeys.add(`server-${server.target_id}-disk`)
+    
+    // 현재 값 저장
+    prevServerValues.value[server.target_id] = {
+      cpu: server.cpu_percent,
+      mem: server.memory_percent,
+      disk: server.disk_percent
+    }
+    
+    // 컨테이너 값 비교
+    server.containers.forEach(c => {
+      const key = `${server.target_id}-${c.name}`
+      const prevC = prevContainerValues.value[key] || {}
+      
+      if (prevC.cpu !== c.cpu_percent) newChangedKeys.add(`container-${key}-cpu`)
+      if (prevC.mem !== c.memory_usage) newChangedKeys.add(`container-${key}-mem`)
+      if (prevC.rx !== c.network_rx) newChangedKeys.add(`container-${key}-rx`)
+      if (prevC.tx !== c.network_tx) newChangedKeys.add(`container-${key}-tx`)
+      
+      prevContainerValues.value[key] = {
+        cpu: c.cpu_percent,
+        mem: c.memory_usage,
+        rx: c.network_rx,
+        tx: c.network_tx
+      }
+    })
+  })
+  
+  changedKeys.value = newChangedKeys
+  
+  // 1.5초 후 하이라이트 제거
+  if (newChangedKeys.size > 0) {
+    setTimeout(() => {
+      changedKeys.value = new Set()
+    }, 1500)
+  }
+}, { deep: true })
+
+function isChanged(serverId: number, metric: string): boolean {
+  return changedKeys.value.has(`server-${serverId}-${metric}`)
+}
+
+function isContainerChanged(serverId: number, containerName: string, metric: string): boolean {
+  return changedKeys.value.has(`container-${serverId}-${containerName}-${metric}`)
+}
 
 function sortContainers(containers: ContainerStatus[]) {
   return [...containers].sort((a, b) => a.name.localeCompare(b.name))
@@ -206,7 +298,7 @@ function getContainerMemLevel(c: ContainerStatus): string {
 
 function getMemPercent(c: ContainerStatus): number {
   if (!c.memory_limit || !c.memory_usage) return 0
-  return (c.memory_usage / c.memory_limit) * 100
+  return (Number(c.memory_usage) / Number(c.memory_limit)) * 100
 }
 
 function formatMemoryShort(bytes: number | null): string {
@@ -224,10 +316,11 @@ function isMemoryOver1GB(bytes: number | null): boolean {
 
 function formatNetworkShort(bytes: number | null): string {
   if (bytes === null || bytes === undefined) return '-'
-  if (bytes < 1024) return `${bytes}B`
-  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(0)}K`
-  if (bytes < 1024 * 1024 * 1024) return `${(bytes / 1024 / 1024).toFixed(1)}M`
-  return `${(bytes / 1024 / 1024 / 1024).toFixed(2)}G`
+  const numBytes = Number(bytes)
+  if (numBytes < 1024) return `${numBytes}B`
+  if (numBytes < 1024 * 1024) return `${(numBytes / 1024).toFixed(0)}K`
+  if (numBytes < 1024 * 1024 * 1024) return `${(numBytes / 1024 / 1024).toFixed(1)}M`
+  return `${(numBytes / 1024 / 1024 / 1024).toFixed(2)}G`
 }
 
 function formatTimeAgo(datetime: string | null): string {
@@ -245,82 +338,98 @@ function formatTimeAgo(datetime: string | null): string {
 <style scoped>
 .server-portlet { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
 
-.portlet-header { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border-color); background: var(--bg-tertiary, #f8fafc); }
-.portlet-title { margin: 0; font-size: 18px; font-weight: 600; color: var(--text-primary); }
-.summary-badges { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-secondary); }
+.portlet-header { display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; border-bottom: 1px solid var(--border-color); background: var(--bg-tertiary, #f8fafc); }
+.portlet-title { margin: 0; font-size: 22px; font-weight: 600; color: var(--text-primary); }
+.summary-badges { display: flex; align-items: center; gap: 16px; font-size: 17px; color: var(--text-secondary); }
 .divider { color: var(--border-color); }
-.level-counts { margin-left: 8px; }
-.level-counts .lv { margin-right: 6px; }
+.level-counts { margin-left: 12px; }
+.level-counts .lv { margin-right: 10px; font-size: 16px; }
 
-/* 서버 그리드 - flex-wrap */
-.server-grid { display: flex; flex-wrap: wrap; gap: 12px; padding: 16px; align-items: flex-start; }
+.server-grid { display: flex; flex-wrap: wrap; gap: 16px; padding: 20px; align-items: flex-start; }
 
-/* 서버 유닛 */
-.server-unit { display: flex; background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 10px; overflow: hidden; }
-.server-unit.warning { border-left: 3px solid #eab308; }
-.server-unit.critical { border-left: 3px solid #f97316; }
-.server-unit.danger { border-left: 3px solid #ef4444; }
-.server-unit.offline { border-left: 3px solid #6b7280; opacity: 0.7; }
+.server-unit { display: flex; background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
+.server-unit.warning { border-left: 5px solid #eab308; }
+.server-unit.critical { border-left: 5px solid #f97316; }
+.server-unit.danger { border-left: 5px solid #ef4444; }
+.server-unit.offline { border-left: 5px solid #6b7280; opacity: 0.7; }
 
-/* 서버 정보 (왼쪽) */
-.server-info { width: 150px; min-width: 150px; padding: 12px; border-right: 1px solid var(--border-color); cursor: pointer; }
+.server-info { width: 200px; min-width: 200px; padding: 16px; border-right: 1px solid var(--border-color); cursor: pointer; }
 .server-info:hover { background: var(--bg-tertiary, #f8fafc); }
 
-.server-name { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
-.server-name .level-icon { font-size: 12px; flex-shrink: 0; }
-.server-name .name { font-size: 15px; font-weight: 600; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
-.server-name .container-count { font-size: 12px; color: var(--text-muted); flex-shrink: 0; }
+.server-name { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
+.server-name .level-icon { font-size: 16px; flex-shrink: 0; }
+.server-name .name { font-size: 19px; font-weight: 700; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
+.server-name .container-count { font-size: 15px; color: var(--text-muted); flex-shrink: 0; }
 
-/* 서버 메트릭 */
-.metric-row { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
-.metric-label { font-size: 11px; font-weight: 500; color: var(--text-muted); width: 28px; }
-.progress-bar { flex: 1; height: 6px; background: var(--bg-tertiary, #e5e7eb); border-radius: 3px; overflow: hidden; }
-.progress-fill { height: 100%; border-radius: 3px; transition: width 0.3s; }
+.metric-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
+.metric-label { font-size: 14px; font-weight: 600; color: var(--text-muted); width: 42px; }
+.progress-bar { flex: 1; height: 10px; background: var(--bg-tertiary, #e5e7eb); border-radius: 5px; overflow: hidden; }
+.progress-fill { height: 100%; border-radius: 5px; transition: width 0.3s; }
 .progress-fill.normal { background: #22c55e; }
 .progress-fill.warning { background: #eab308; }
 .progress-fill.critical { background: #f97316; }
 .progress-fill.danger { background: #ef4444; }
-.metric-value { font-size: 12px; font-weight: 600; width: 24px; text-align: right; }
+.metric-value { font-size: 17px; font-weight: 700; width: 36px; text-align: right; transition: all 0.3s; padding: 2px 4px; border-radius: 4px; }
 .metric-value.normal { color: #16a34a; }
 .metric-value.warning { color: #ca8a04; }
 .metric-value.critical { color: #ea580c; }
 .metric-value.danger { color: #dc2626; }
 
-.offline-info { text-align: center; padding: 16px 0; color: var(--text-muted); }
-.offline-text { font-size: 14px; margin-bottom: 4px; }
-.offline-time { font-size: 12px; opacity: 0.7; }
+.offline-info { text-align: center; padding: 24px 0; color: var(--text-muted); }
+.offline-text { font-size: 18px; margin-bottom: 8px; }
+.offline-time { font-size: 15px; opacity: 0.7; }
 
-/* 컨테이너 영역 */
-.container-area { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px; align-content: flex-start; min-width: 100px; }
+.container-area { display: flex; flex-wrap: wrap; gap: 12px; padding: 14px; align-content: flex-start; min-width: 140px; }
 
-/* 컨테이너 카드 */
-.container-card { width: 200px; padding: 10px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-secondary); cursor: pointer; transition: all 0.15s; overflow: hidden; }
-.container-card:hover { transform: translateY(-1px); box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
+.container-card { width: 260px; padding: 14px; border-radius: 10px; border: 1px solid var(--border-color); background: var(--bg-secondary); cursor: pointer; transition: all 0.15s; overflow: hidden; }
+.container-card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
 .container-card.normal { background: var(--container-normal-bg, #f0fdf4); border-color: var(--container-normal-border, #86efac); }
 .container-card.warning { background: var(--container-warning-bg, #fefce8); border-color: var(--container-warning-border, #fde047); }
 .container-card.critical { background: var(--container-critical-bg, #fff7ed); border-color: var(--container-critical-border, #fdba74); }
 .container-card.danger { background: var(--container-danger-bg, #fef2f2); border-color: var(--container-danger-border, #fca5a5); }
 .container-card.stopped { background: var(--container-danger-bg, #fef2f2); border-color: var(--container-danger-border, #fca5a5); }
 
-.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; overflow: hidden; }
-.card-name { display: flex; align-items: center; gap: 4px; flex: 1; min-width: 0; overflow: hidden; }
-.card-name .card-level { font-size: 10px; flex-shrink: 0; }
-.card-name .name { font-size: 13px; font-weight: 600; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
-.card-uptime { font-size: 11px; color: var(--text-muted); flex-shrink: 0; margin-left: 8px; white-space: nowrap; }
+.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; overflow: hidden; }
+.card-name { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; overflow: hidden; }
+.card-name .card-level { font-size: 14px; flex-shrink: 0; }
+.card-name .name { font-size: 17px; font-weight: 700; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.card-uptime { font-size: 14px; color: var(--text-muted); flex-shrink: 0; margin-left: 12px; white-space: nowrap; }
 
-.card-metrics { display: flex; flex-wrap: wrap; gap: 4px 8px; }
-.card-metric { display: flex; align-items: center; gap: 4px; width: calc(50% - 4px); overflow: hidden; }
-.card-metric .label { font-size: 10px; color: var(--text-muted); width: 22px; flex-shrink: 0; }
-.mini-bar { flex: 1; height: 5px; background: rgba(0,0,0,0.1); border-radius: 2px; overflow: hidden; min-width: 20px; }
-.mini-fill { height: 100%; border-radius: 2px; }
+.card-metrics { display: flex; flex-wrap: wrap; gap: 8px 12px; }
+.card-metric { display: flex; align-items: center; gap: 8px; width: calc(50% - 6px); overflow: hidden; }
+.card-metric .label { font-size: 13px; color: var(--text-muted); width: 28px; flex-shrink: 0; font-weight: 500; }
+.mini-bar { flex: 1; height: 8px; background: rgba(0,0,0,0.1); border-radius: 4px; overflow: hidden; min-width: 28px; }
+.mini-fill { height: 100%; border-radius: 4px; }
 .mini-fill.normal { background: #22c55e; }
 .mini-fill.warning { background: #eab308; }
 .mini-fill.critical { background: #f97316; }
 .mini-fill.danger { background: #ef4444; }
-.card-metric .value { font-size: 11px; font-weight: 500; color: var(--text-secondary); width: 36px; text-align: right; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; }
-.card-metric .value.mem-highlight { color: #dc2626; font-weight: 700; }
+.card-metric .value { font-size: 15px; font-weight: 700; color: var(--text-secondary); width: 50px; text-align: right; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; transition: all 0.3s; padding: 2px 4px; border-radius: 4px; }
+.card-metric .value.mem-highlight { color: #dc2626; font-weight: 800; }
+.card-metric .value.net { color: var(--text-muted); font-weight: 600; }
 
-.card-stopped { font-size: 12px; color: var(--text-muted); font-style: italic; text-align: center; padding: 6px 0; }
+.card-stopped { font-size: 15px; color: var(--text-muted); font-style: italic; text-align: center; padding: 10px 0; }
 
-.no-container { font-size: 13px; color: var(--text-muted); padding: 12px; display: flex; align-items: center; justify-content: center; }
+.no-container { font-size: 16px; color: var(--text-muted); padding: 16px; display: flex; align-items: center; justify-content: center; }
+
+/* 값 변경 시 하이라이트 애니메이션 - 더 눈에 띄게 */
+@keyframes valueFlash {
+  0% { 
+    background-color: rgba(59, 130, 246, 0.6); 
+    transform: scale(1.1);
+  }
+  50% { 
+    background-color: rgba(59, 130, 246, 0.3); 
+    transform: scale(1.05);
+  }
+  100% { 
+    background-color: transparent; 
+    transform: scale(1);
+  }
+}
+
+.value-changed {
+  animation: valueFlash 1.5s ease-out;
+  border-radius: 4px;
+}
 </style>

frontend/components/SidebarNav.vue

@@ -1,67 +1,72 @@
 <template>
-  <aside class="sidebar">
+  <aside :class="['sidebar', { collapsed: isCollapsed }]">
     <div class="sidebar-header">
-      <div class="sidebar-logo">
-        <span class="logo-icon">📡</span>
+      <button class="toggle-btn" @click="toggle" :title="isCollapsed ? '메뉴 열기' : '메뉴 닫기'">
+        <span class="hamburger">☰</span>
+      </button>
+      <div class="sidebar-logo" v-show="!isCollapsed">
         <span>OSOLIT Monitor</span>
       </div>
     </div>
     
     <nav class="sidebar-nav">
-      <NuxtLink to="/" class="nav-item" :class="{ active: route.path === '/' }">
+      <NuxtLink to="/" class="nav-item" :class="{ active: route.path === '/' }" :title="isCollapsed ? '대시보드' : ''">
         <span class="icon">📊</span>
-        <span>대시보드</span>
+        <span class="label">대시보드</span>
       </NuxtLink>
       
-      <div class="nav-group-title">네트워크</div>
+      <div class="nav-group-title" v-show="!isCollapsed">네트워크</div>
+      <div class="nav-divider" v-show="isCollapsed"></div>
       
-      <NuxtLink to="/network/pubnet" class="nav-item nav-sub-item" :class="{ active: route.path === '/network/pubnet' }">
+      <NuxtLink to="/network/pubnet" class="nav-item nav-sub-item" :class="{ active: route.path === '/network/pubnet' }" :title="isCollapsed ? 'Public Network' : ''">
         <span class="icon">🌐</span>
-        <span>Public Network</span>
+        <span class="label">Public Network</span>
       </NuxtLink>
       
-      <NuxtLink to="/network/privnet" class="nav-item nav-sub-item" :class="{ active: route.path === '/network/privnet' }">
+      <NuxtLink to="/network/privnet" class="nav-item nav-sub-item" :class="{ active: route.path === '/network/privnet' }" :title="isCollapsed ? 'Private Network' : ''">
         <span class="icon">🔒</span>
-        <span>Private Network</span>
+        <span class="label">Private Network</span>
       </NuxtLink>
       
-      <div class="nav-group-title">서버</div>
+      <div class="nav-group-title" v-show="!isCollapsed">서버</div>
+      <div class="nav-divider" v-show="isCollapsed"></div>
       
-      <NuxtLink to="/server/list" class="nav-item nav-sub-item" :class="{ active: route.path === '/server/list' }">
+      <NuxtLink to="/server/list" class="nav-item nav-sub-item" :class="{ active: route.path === '/server/list' }" :title="isCollapsed ? 'Server Targets' : ''">
         <span class="icon">🖥️</span>
-        <span>Server Targets</span>
+        <span class="label">Server Targets</span>
       </NuxtLink>
       
-      <NuxtLink to="/server/history" class="nav-item nav-sub-item" :class="{ active: route.path === '/server/history' }">
+      <NuxtLink to="/server/history" class="nav-item nav-sub-item" :class="{ active: route.path === '/server/history' }" :title="isCollapsed ? 'Server Status' : ''">
         <span class="icon">📈</span>
-        <span>Server Status</span>
+        <span class="label">Server Status</span>
       </NuxtLink>
       
-      <NuxtLink to="/settings/thresholds" class="nav-item nav-sub-item" :class="{ active: route.path === '/settings/thresholds' }">
+      <NuxtLink to="/settings/thresholds" class="nav-item nav-sub-item" :class="{ active: route.path === '/settings/thresholds' }" :title="isCollapsed ? 'Thresholds' : ''">
         <span class="icon">⚙️</span>
-        <span>Thresholds</span>
+        <span class="label">Thresholds</span>
       </NuxtLink>
       
-      <div class="nav-group-title">이상감지</div>
+      <div class="nav-group-title" v-show="!isCollapsed">이상감지</div>
+      <div class="nav-divider" v-show="isCollapsed"></div>
       
-      <NuxtLink to="/anomaly/short-term" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/short-term' }">
+      <NuxtLink to="/anomaly/short-term" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/short-term' }" :title="isCollapsed ? '단기 변화율' : ''">
         <span class="icon">⚡</span>
-        <span>단기 변화율</span>
+        <span class="label">단기 변화율</span>
       </NuxtLink>
       
-      <NuxtLink to="/anomaly/zscore" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/zscore' }">
+      <NuxtLink to="/anomaly/zscore" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/zscore' }" :title="isCollapsed ? 'Z-Score 분석' : ''">
         <span class="icon">📊</span>
-        <span>Z-Score 분석</span>
+        <span class="label">Z-Score 분석</span>
       </NuxtLink>
       
-      <NuxtLink to="/anomaly/baseline" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/baseline' }">
+      <NuxtLink to="/anomaly/baseline" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/baseline' }" :title="isCollapsed ? '시간대별 베이스라인' : ''">
         <span class="icon">🕐</span>
-        <span>시간대별 베이스라인</span>
+        <span class="label">시간대별 베이스라인</span>
       </NuxtLink>
       
-      <NuxtLink to="/anomaly/trend" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/trend' }">
+      <NuxtLink to="/anomaly/trend" class="nav-item nav-sub-item" :class="{ active: route.path === '/anomaly/trend' }" :title="isCollapsed ? '추세 분석' : ''">
         <span class="icon">📉</span>
-        <span>추세 분석</span>
+        <span class="label">추세 분석</span>
       </NuxtLink>
     </nav>
   </aside>
@@ -69,4 +74,129 @@
 
 <script setup lang="ts">
 const route = useRoute()
+const { isCollapsed, toggle } = useSidebar()
 </script>
+
+<style scoped>
+.sidebar {
+  width: 200px;
+  min-width: 200px;
+  background: var(--bg-secondary);
+  border-right: 1px solid var(--border-color);
+  display: flex;
+  flex-direction: column;
+  transition: all 0.2s ease;
+}
+
+.sidebar.collapsed {
+  width: 50px;
+  min-width: 50px;
+}
+
+.sidebar-header {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 12px;
+  border-bottom: 1px solid var(--border-color);
+}
+
+.toggle-btn {
+  background: none;
+  border: none;
+  cursor: pointer;
+  padding: 6px 8px;
+  border-radius: 6px;
+  transition: background 0.2s;
+  flex-shrink: 0;
+}
+
+.toggle-btn:hover {
+  background: var(--bg-tertiary, #f1f5f9);
+}
+
+.hamburger {
+  font-size: 18px;
+  color: var(--text-primary);
+}
+
+.sidebar-logo {
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text-primary);
+  white-space: nowrap;
+  overflow: hidden;
+}
+
+.sidebar-nav {
+  flex: 1;
+  padding: 8px;
+  overflow-y: auto;
+}
+
+.nav-item {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 12px;
+  border-radius: 8px;
+  color: var(--text-secondary);
+  text-decoration: none;
+  transition: all 0.15s;
+  margin-bottom: 2px;
+}
+
+.collapsed .nav-item {
+  justify-content: center;
+  padding: 10px 8px;
+}
+
+.nav-item:hover {
+  background: var(--bg-tertiary, #f1f5f9);
+  color: var(--text-primary);
+}
+
+.nav-item.active {
+  background: var(--accent-bg, #eff6ff);
+  color: var(--accent-color, #3b82f6);
+  font-weight: 500;
+}
+
+.nav-item .icon {
+  font-size: 16px;
+  flex-shrink: 0;
+}
+
+.nav-item .label {
+  font-size: 13px;
+  white-space: nowrap;
+  overflow: hidden;
+}
+
+.collapsed .nav-item .label {
+  display: none;
+}
+
+.nav-group-title {
+  font-size: 11px;
+  font-weight: 600;
+  color: var(--text-muted);
+  padding: 12px 12px 6px;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.nav-divider {
+  height: 1px;
+  background: var(--border-color);
+  margin: 8px 6px;
+}
+
+.nav-sub-item {
+  padding-left: 16px;
+}
+
+.collapsed .nav-sub-item {
+  padding-left: 8px;
+}
+</style>

frontend/composables/useSidebar.ts

@@ -0,0 +1,24 @@
+const sidebarCollapsed = ref(true) // 기본값: 닫힌 상태
+
+export function useSidebar() {
+  const isCollapsed = computed(() => sidebarCollapsed.value)
+  
+  function toggle() {
+    sidebarCollapsed.value = !sidebarCollapsed.value
+  }
+  
+  function open() {
+    sidebarCollapsed.value = false
+  }
+  
+  function close() {
+    sidebarCollapsed.value = true
+  }
+  
+  return {
+    isCollapsed,
+    toggle,
+    open,
+    close
+  }
+}