:root{--primary-color: #84c7ae;--primary-light: rgba(132, 199, 174, .15)}body{margin:0;font-family:Pretendard,sans-serif;background-color:#f8f9fa}.app-container{min-height:100vh;display:flex;flex-direction:column}.top-nav{background:#fff;border-bottom:1px solid #e5e7eb;padding:0 20px;height:60px;flex-shrink:0;z-index:10}.nav-content{height:100%;display:flex;justify-content:space-between;align-items:center}.nav-left,.nav-right{display:flex;align-items:center;gap:20px}.nav-left h1{font-size:1.2rem;margin:0;color:#111827;font-weight:800}.user-profile{display:flex;align-items:center;gap:8px;font-size:.95rem;color:#4b5563}.btn-login{text-decoration:none;background-color:var(--primary-color);color:#fff;font-size:.9rem;font-weight:600;padding:8px 16px;border-radius:6px;transition:background-color .2s}.btn-login:hover{background-color:#6eb399}.main-body{display:flex;flex:1;overflow:hidden}.sidebar{width:240px;background:#fff;border-right:1px solid #e5e7eb;flex-shrink:0;display:flex;flex-direction:column}.side-menu{flex:1;display:flex;flex-direction:column;gap:4px;padding:24px 12px;overflow-y:auto}.menu-item{display:flex;align-items:center;gap:12px;padding:12px 16px;text-decoration:none;color:#4b5563;font-weight:500;border-radius:8px;transition:all .2s}.menu-item:hover{background:#f3f4f6;color:#111827}.menu-item.active{background:var(--primary-light);color:#2d453b;font-weight:600}.sidebar-footer{display:flex;justify-content:space-around;align-items:center;padding:16px;border-top:1px solid #f3f4f6;background:#fff}.footer-icon{text-decoration:none;font-size:1.4rem;color:#4b5563;padding:10px;border-radius:10px;transition:background-color .2s;display:flex;align-items:center;justify-content:center}.footer-icon:hover{background:#f3f4f6}.footer-icon.active{background:var(--primary-light)}.content-area{flex:1;padding:40px;overflow-y:auto}