*,:before,:after{box-sizing:border-box}:root{--sidebar-w:220px;--sidebar-collapsed-w:56px;--bg:#0f1117;--bg-surface:#1a1d27;--bg-sidebar:#141620;--border:#2a2d3a;--text:#d1d5db;--text-dim:#6b7280;--text-h:#f3f4f6;--accent:#60a5fa;--accent-hover:#3b82f6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font:14px/1.5 system-ui,Segoe UI,Roboto,sans-serif}body{margin:0}#root{width:100%;min-height:100vh;display:flex}h1,h2,h3{color:var(--text-h);margin:0 0 12px;font-weight:600}h1{font-size:20px}h2{font-size:18px}h3{font-size:15px}button{cursor:pointer;font-family:inherit}select,input{font-family:inherit}table{border-collapse:collapse}input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#374151;border-radius:3px}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-sidebar);border-right:1px solid var(--border);flex-direction:column;transition:width .2s,min-width .2s;display:flex;overflow:hidden}.sidebar.collapsed{width:var(--sidebar-collapsed-w);min-width:var(--sidebar-collapsed-w)}.sidebar-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;min-height:56px;padding:16px 14px;display:flex}.sidebar-header .logo{color:var(--accent);white-space:nowrap;font-size:15px;font-weight:700;overflow:hidden}.sidebar.collapsed .sidebar-header .logo{display:none}.sidebar-toggle{color:var(--text-dim);cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:4px;font-size:18px}.sidebar-toggle:hover{color:var(--text-h)}.nav-section{flex:1;padding:10px 8px;overflow-y:auto}.nav-section .section-label{text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);white-space:nowrap;padding:8px 8px 4px;font-size:10px;overflow:hidden}.sidebar.collapsed .section-label{display:none}.nav-item{color:var(--text);cursor:pointer;text-align:left;white-space:nowrap;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;width:100%;padding:8px 12px;font-size:13px;transition:background .15s;display:flex}.nav-item:hover{background:#ffffff0d}.nav-item.active{color:var(--accent);background:#60a5fa1f}.nav-item .icon{text-align:center;flex-shrink:0;width:22px;font-size:17px}.nav-item .label{overflow:hidden}.sidebar.collapsed .nav-item .label{display:none}.sidebar-footer{border-top:1px solid var(--border);align-items:center;gap:8px;padding:12px 14px;display:flex}.sidebar-footer .user-info{white-space:nowrap;flex:1;overflow:hidden}.sidebar-footer .user-email{color:var(--text);font-size:12px}.sidebar-footer .user-role{color:var(--text-dim);font-size:10px}.sidebar.collapsed .user-info{display:none}.logout-btn{color:var(--text-dim);cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:4px;font-size:16px}.logout-btn:hover{color:#ef4444}.main-content{flex:1;min-width:0;padding:20px 28px;overflow-x:auto}