:root{--primary: #10517b;--primary-dark: #0a3d5e;--primary-light: #e6f1fb;--sidebar-width: 240px;--topbar-height: 60px;--success: #28a745;--warning: #fd7e14;--danger: #dc3545;--purple: #6f42c1;--text-dark: #2d3748;--text-muted: #718096;--border: #e2e8f0;--bg-light: #f7f9fc}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:var(--bg-light);color:var(--text-dark)}.erp-sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:var(--primary);overflow-y:auto;z-index:1000;transition:transform .3s ease}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid rgba(255,255,255,.1);height:var(--topbar-height)}.sidebar-logo-icon{width:34px;height:34px;background:#fff;color:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}.sidebar-logo-name{color:#fff;font-size:15px;font-weight:700;line-height:1.2}.sidebar-logo-sub{color:#fff9;font-size:10px}.sidebar-nav{padding:12px 0}.nav-section-label{color:#fff6;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;padding:12px 16px 4px}.nav-link{display:flex;align-items:center;gap:10px;padding:9px 16px;color:#ffffffbf;text-decoration:none;font-size:13px;transition:all .2s;border-left:3px solid transparent}.nav-link:hover{background:#ffffff1a;color:#fff}.nav-link.active{background:#ffffff26;color:#fff;border-left-color:#fff}.nav-icon{width:16px;text-align:center;font-size:13px;flex-shrink:0}.erp-sidebar.collapsed{transform:translate(-100%)}.erp-topbar{position:fixed;top:0;left:var(--sidebar-width);right:0;height:var(--topbar-height);background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;gap:16px;z-index:999;transition:left .3s ease}.topbar-toggle{background:none;border:none;font-size:16px;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:6px}.topbar-toggle:hover{background:var(--bg-light)}.topbar-title{font-size:15px;font-weight:600;color:var(--text-dark);flex:1}.topbar-right{display:flex;align-items:center;gap:12px}.topbar-icon{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:8px;color:var(--text-muted);cursor:pointer;font-size:15px}.topbar-icon:hover{background:var(--bg-light)}.topbar-user{display:flex;align-items:center;gap:8px}.topbar-avatar{width:32px;height:32px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}.topbar-username{font-size:13px;font-weight:500;color:var(--text-dark)}.topbar-logout{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:15px;padding:6px;border-radius:6px}.topbar-logout:hover{background:#fde8e8;color:var(--danger)}.erp-content{margin-left:var(--sidebar-width);margin-top:var(--topbar-height);min-height:calc(100vh - var(--topbar-height));transition:margin-left .3s ease}.erp-content.expanded{margin-left:0}.flash-message{display:flex;align-items:center;gap:8px;padding:12px 20px;font-size:13px}.flash-success{background:#d4edda;color:#155724}.flash-error{background:#f8d7da;color:#721c24}.dashboard-wrap{padding:24px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}.stat-card{background:#fff;border-radius:12px;padding:20px;display:flex;align-items:center;gap:16px;box-shadow:0 1px 4px #0000000f;border-left:4px solid transparent}.stat-blue{border-left-color:var(--primary)}.stat-orange{border-left-color:var(--warning)}.stat-red{border-left-color:var(--danger)}.stat-green{border-left-color:var(--success)}.stat-icon{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.stat-blue .stat-icon{background:var(--primary-light);color:var(--primary)}.stat-orange .stat-icon{background:#fff3e0;color:var(--warning)}.stat-red .stat-icon{background:#fde8e8;color:var(--danger)}.stat-green .stat-icon{background:#e8f5e9;color:var(--success)}.stat-value{font-size:22px;font-weight:700;color:var(--text-dark);line-height:1.2}.stat-label{font-size:13px;font-weight:500;color:var(--text-dark);margin-top:2px}.stat-sub{font-size:11px;color:var(--text-muted);margin-top:2px}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.dash-card{background:#fff;border-radius:12px;box-shadow:0 1px 4px #0000000f;overflow:hidden}.dash-card-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--border);font-size:14px;font-weight:600;color:var(--text-dark)}.dash-card-link{font-size:12px;color:var(--primary);text-decoration:none;font-weight:400}.dash-card-body{padding:16px}.empty-state{text-align:center;padding:32px 16px;color:var(--text-muted)}.empty-state i{font-size:32px;margin-bottom:10px;opacity:.3}.empty-state p{font-size:14px;font-weight:500;margin-bottom:4px}.empty-state span{font-size:12px}.quick-actions{display:flex;flex-wrap:wrap;gap:10px;padding:16px}.quick-btn{display:flex;align-items:center;gap:8px;padding:10px 18px;border-radius:8px;font-size:13px;font-weight:500;text-decoration:none;transition:opacity .2s}.quick-btn:hover{opacity:.85}.quick-btn i{font-size:13px}.quick-btn-blue{background:var(--primary-light);color:var(--primary)}.quick-btn-green{background:#e8f5e9;color:var(--success)}.quick-btn-orange{background:#fff3e0;color:var(--warning)}.quick-btn-purple{background:#f0ebff;color:var(--purple)}