:root{--primary: #4A6CF7;--primary-hover: #3b5bdb;--accent: #818cf8;--bg-color: #f4f6f9;--surface: #ffffff;--border: #e5e7eb;--text-main: #1f2937;--text-muted: #6b7280;--sidebar-bg: #1e293b;--sidebar-text: #94a3b8;--sidebar-hover-bg: #334155;--sidebar-active-text: #e2e8f0;--topbar-height: 64px;--sidebar-width: 260px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{margin:0;padding:0;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-color);color:var(--text-main);line-height:1.5;overflow-x:hidden}.main-wrapper{display:flex;height:100vh}.sidebar{width:var(--sidebar-width);background-color:var(--sidebar-bg);color:var(--sidebar-text);overflow-y:auto;display:flex;flex-direction:column;flex-shrink:0;transition:width .25s ease}.sidebar.collapsed{width:0;overflow:hidden}.sidebar::-webkit-scrollbar{width:3px}.sidebar::-webkit-scrollbar-track{background:var(--sidebar-bg)}.sidebar::-webkit-scrollbar-thumb{background:#475569;border-radius:3px}.sidebar-logo{height:var(--topbar-height);display:flex;align-items:center;padding:0 16px;font-size:1.2rem;font-weight:800;color:#f1f5f9;text-decoration:none;letter-spacing:-.3px;border-bottom:1px solid rgba(255,255,255,.05);flex-shrink:0;gap:10px}.sidebar-logo span{color:var(--accent)}.logo-mark{width:30px;height:30px;background:linear-gradient(135deg,#4a6cf7,#818cf8);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px;flex-shrink:0}.sidebar-profile-box{margin:12px 16px;padding:12px 16px;background-color:transparent;border-top:1px solid #334155;border-bottom:1px solid #334155}.profile-top{display:flex;align-items:center;gap:10px;margin-bottom:6px}.profile-avatar{width:36px;height:36px;background:#334155;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#94a3b8;font-size:15px;flex-shrink:0}.profile-info{overflow:hidden;white-space:nowrap}.profile-name{font-size:13px;font-weight:600;color:#e2e8f0;display:block}.plan-badge{background:#f8717126;color:#fca5a5;font-size:10px;font-weight:700;padding:1px 7px;border-radius:3px;letter-spacing:.3px;display:inline-block;margin-top:3px}.token-balance{font-size:12px;font-weight:500;color:#94a3b8;margin-top:8px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.1)}.token-balance strong{color:var(--accent);font-size:13px;font-weight:700}.account-menu{display:flex;flex-direction:column;gap:2px}.account-item{display:flex;align-items:center;gap:10px;color:#94a3b8;text-decoration:none;font-size:12px;font-weight:500;padding:6px 10px;border-radius:6px;transition:background .12s,color .12s}.account-item:hover{background:#334155;color:#e2e8f0}.sidebar-category{margin-top:10px}.category-title{padding:18px 16px 6px;font-size:11px;font-weight:700;color:#64748b;text-transform:uppercase;letter-spacing:.5px}.sub-category-title{padding:8px 16px 4px;font-size:12px;font-weight:600;color:#94a3b8}.sidebar-menu{list-style:none;margin:0;padding:0 10px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:8px 10px;color:var(--sidebar-text);text-decoration:none;font-size:13px;font-weight:500;transition:all .12s;border-radius:6px}.category-title+.sidebar-menu .sidebar-item{padding-left:10px}.sidebar-item:hover{background-color:var(--sidebar-hover-bg);color:var(--sidebar-active-text)}.sidebar-item.active{background-color:#4a6cf726;color:#818cf8;font-weight:600}.item-tag{font-size:9px;font-weight:600;background:#334155;color:#64748b;padding:1px 6px;border-radius:3px;margin-left:auto;white-space:nowrap}.sidebar-item.active .item-tag{background:#8b5cf626;color:#a78bfa}.hidden-feature{display:none}.right-wrapper{flex:1;display:flex;flex-direction:column;height:100vh;min-width:0;overflow:visible}.topbar{height:var(--topbar-height);background-color:var(--surface);box-shadow:0 1px 3px #0000000a;display:flex;align-items:center;padding:0 28px;box-sizing:border-box;flex-shrink:0;overflow:visible;z-index:1000}.toggle-sidebar-btn{background:transparent;border:1px solid #e5e7eb;color:var(--text-muted);font-size:1.2rem;border-radius:6px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;margin-right:28px;transition:all .15s}.toggle-sidebar-btn:hover{background:#f3f4f6;color:var(--text-main)}.topbar-nav{display:flex;gap:24px;height:100%;position:relative}.nav-dropdown-wrap{position:relative;height:100%}.top-menu-link{color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:600;display:flex;align-items:center;border-bottom:2px solid transparent;transition:all .15s ease;height:100%;box-sizing:border-box;cursor:pointer;padding:0}.top-menu-link:hover,.top-menu-link.active{color:var(--primary);border-bottom-color:var(--primary)}.top-menu-link.highlight-nav{color:#818cf8}.top-menu-link.highlight-nav:hover,.top-menu-link.highlight-nav.active{color:var(--primary);border-bottom-color:var(--primary)}.nav-dropdown{position:absolute;top:calc(var(--topbar-height) + 4px);left:50%;transform:translate(-50%) translateY(0);background:#fff;border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 4px 15px #00000014;min-width:160px;opacity:0;visibility:hidden;transition:all .15s ease;z-index:1000;padding:6px;display:flex;flex-direction:column;gap:2px}.nav-dropdown-2col{display:grid;grid-template-columns:1fr 1fr;min-width:240px}.nav-dropdown-wrap:hover .nav-dropdown{opacity:1;visibility:visible}.nav-dropdown a{display:block!important;height:auto!important;padding:8px 12px;color:var(--text-muted);font-size:13px;font-weight:500;text-decoration:none!important;border-bottom:none!important;border-radius:6px;transition:background .15s,color .15s;text-align:left;white-space:nowrap}.nav-dropdown a:hover{background-color:#f3f4f6;color:var(--text-main)}.content{flex:1;background-color:var(--bg-color);overflow-y:auto;padding:24px 28px;box-sizing:border-box}.page-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:24px}.page-title{font-size:22px;font-weight:700;color:#1e293b;margin:0}.page-desc{font-size:13px;color:#6b7280;margin:2px 0 0}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-card{background:#fff;border-radius:12px;border:1px solid #e5e7eb;padding:18px;display:flex;align-items:center;gap:14px;box-shadow:0 1px 3px #0000000a}.stat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}.si-blue{background:#eef2ff;color:#4a6cf7}.si-yellow{background:#fef9c3;color:#ca8a04}.si-pink{background:#fce7f3;color:#be185d}.si-cyan{background:#ecfeff;color:#06b6d4}.stat-body{display:flex;flex-direction:column}.stat-label{font-size:12px;color:#6b7280;font-weight:500}.stat-value{font-size:22px;font-weight:800;color:#1e293b;line-height:1.2;margin-top:2px}.card{background:#fff;border-radius:12px;border:1px solid #e5e7eb;box-shadow:0 1px 3px #0000000a;overflow:hidden;margin-bottom:24px}.card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #f3f4f6}.card-header h3{font-size:14px;font-weight:700;color:#1e293b;margin:0}.card-body{padding:16px 20px}.btn{padding:10px 24px;border:none;border-radius:8px;background:linear-gradient(135deg,#4a6cf7,#6366f1);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:box-shadow .15s,transform .15s}.btn:hover{box-shadow:0 4px 12px #4a6cf74d;transform:translateY(-1px)}.form-control{padding:10px 14px;border:1px solid #d1d5db;border-radius:8px;font-size:14px;color:#1f2937;background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}.form-control:focus{border-color:#4a6cf7;box-shadow:0 0 0 3px #4a6cf71a}