:root{--bg: #1a1a2e;--bg-card: #2a2a3e;--bg-input: #12121f;--border: #3a3a50;--accent: #4f8ef7;--accent-dim: #2a5090;--text: #e8e8f0;--text-muted: #8888aa;--danger: #e05555;--success: #44cc77;--warning: #e0a055;--radius: 10px;--sidebar-w: 220px}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app-shell{display:flex;height:100%}.sidebar{width:var(--sidebar-w);background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;padding:0 0 16px}.sidebar-brand{padding:20px 20px 12px;font-size:18px;font-weight:700;color:var(--text);border-bottom:1px solid var(--border);margin-bottom:8px}.sidebar-brand span{color:var(--accent)}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 8px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius);color:var(--text-muted);cursor:pointer;border:none;background:none;width:100%;text-align:left;font-size:14px;transition:background .15s,color .15s}.nav-item:hover{background:var(--bg);color:var(--text)}.nav-item.active{background:var(--accent-dim);color:var(--text)}.sidebar-footer{padding:12px 8px 0;border-top:1px solid var(--border);margin-top:8px}.main{flex:1;overflow-y:auto;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:10}.topbar-title{font-size:18px;font-weight:600}.topbar-user{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:12px}.page{padding:28px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin-bottom:28px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center}.stat-value{font-size:32px;font-weight:700;color:var(--accent)}.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px;text-transform:uppercase;letter-spacing:.05em}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;padding:10px 14px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border)}td{padding:12px 14px;border-bottom:1px solid var(--border);vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background:#ffffff05}input,select,textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;padding:8px 12px;outline:none;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--accent)}input::placeholder{color:var(--text-muted)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;border:none;transition:opacity .15s}.btn:hover{opacity:.85}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-sm{padding:5px 10px;font-size:12px}.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600;text-transform:capitalize}.badge-green{background:#1a3a1a;color:var(--success)}.badge-red{background:#3a1a1a;color:var(--danger)}.badge-yellow{background:#3a2a1a;color:var(--warning)}.badge-gray{background:#2a2a2a;color:var(--text-muted)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.page-header h1{font-size:22px;font-weight:700;margin:0}.search-bar{display:flex;gap:10px;margin-bottom:16px}.search-bar input{flex:1;max-width:340px}.pagination{display:flex;align-items:center;gap:12px;padding:16px 14px 0;color:var(--text-muted);font-size:13px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state .empty-icon{font-size:48px;margin-bottom:12px}.login-page{min-height:100%;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-card{width:100%;max-width:380px;padding:36px}.login-logo{font-size:48px;text-align:center;margin-bottom:8px}.login-title{font-size:22px;font-weight:700;text-align:center;margin:0 0 4px}.login-sub{font-size:13px;color:var(--text-muted);text-align:center;margin:0 0 28px}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:5px}.form-group input{width:100%}.error-banner{background:#3a1a1a;border:1px solid var(--danger);border-radius:8px;padding:10px 14px;color:var(--danger);font-size:13px;margin-bottom:14px}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;margin:60px auto}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{display:flex;justify-content:center}