:root{--text:#4b5563;--text-h:#0f172a;--bg:#f5f6f8;--panel:#fff;--border:#e2e5ea;--accent:#2563eb;--accent-hover:#1d4ed8;--danger:#dc2626;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;font:15px/1.5 var(--sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0}h1{color:var(--text-h);margin:0 0 4px;font-size:24px;font-weight:600}h2{color:var(--text-h);margin:0 0 16px;font-size:18px;font-weight:600}button{font:inherit;cursor:pointer;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:9px 16px;font-weight:500;transition:background .15s}button:hover:not(:disabled){background:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{color:var(--text-h);border:1px solid var(--border);background:#fff}button.secondary:hover:not(:disabled){background:#f3f4f6}.link-btn{color:var(--accent);background:0 0;padding:0;font-weight:500}.link-btn:hover:not(:disabled){background:0 0;text-decoration:underline}.link-btn.danger{color:var(--danger)}input,select,textarea{font:inherit;border:1px solid var(--border);color:var(--text-h);background:#fff;border-radius:6px;width:100%;padding:8px 10px}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}label{color:var(--text-h);flex-direction:column;flex:1;gap:4px;font-size:13px;font-weight:500;display:flex}.checkbox-label{flex-direction:row;align-items:center;gap:8px}.checkbox-label input{width:auto}.app-shell{min-height:100vh;display:flex}.loading-screen{justify-content:center;align-items:center;height:100vh;display:flex}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:230px;padding:20px 14px;display:flex}.brand{align-items:center;gap:10px;padding:0 6px 20px;display:flex}.brand-mark{background:var(--accent);color:#fff;border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;font-size:13px;font-weight:700;display:flex}.brand-title{color:var(--text-h);font-size:14px;font-weight:600}.brand-subtitle{color:var(--text);font-size:12px}nav{flex-direction:column;flex:1;gap:2px;display:flex}nav a{color:var(--text);border-radius:6px;padding:8px 10px;font-size:14px;font-weight:500;text-decoration:none}nav a:hover{background:#f3f4f6}nav a.active{color:var(--accent);background:#eff6ff}.nav-group-label{text-transform:uppercase;letter-spacing:.05em;color:#9ca3af;margin:12px 10px 2px;font-size:11px;font-weight:600}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;gap:8px;padding-top:12px;display:flex}.user-chip{padding:0 6px}.user-name{color:var(--text-h);font-size:13px;font-weight:600}.user-role{text-transform:capitalize;color:var(--text);font-size:11px}.content{flex:1;max-width:1200px;padding:28px 36px}.auth-screen{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;width:360px;padding:32px}.auth-subtitle{color:var(--text);margin-bottom:20px;font-size:13px}.auth-card form{flex-direction:column;gap:14px;display:flex}.auth-card button[type=submit]{margin-top:4px}.auth-error{color:var(--danger);margin:0;font-size:13px}.auth-notice{color:#16a34a;margin:0;font-size:13px}.auth-card .link-btn{margin:16px auto 0;font-size:13px;display:block}.page-header{justify-content:space-between;align-items:flex-start;margin-bottom:20px;display:flex}.page-subtitle{color:var(--text);font-size:13px}.toolbar{gap:10px;margin-bottom:16px;display:flex}.toolbar input{max-width:280px}.toolbar select{max-width:200px}.card-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:24px;display:grid}.stat-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px 18px}a.stat-card{text-decoration:none;display:block}.stat-label{color:var(--text);margin-bottom:6px;font-size:12px}.stat-value{color:var(--text-h);font-size:24px;font-weight:700}.stat-meta{color:var(--text);margin-top:4px;font-size:12px}.data-table{border-collapse:collapse;background:var(--panel);border:1px solid var(--border);border-radius:10px;width:100%;overflow:hidden}.data-table th{text-align:left;text-transform:uppercase;letter-spacing:.03em;color:var(--text);border-bottom:1px solid var(--border);background:#fafbfc;padding:10px 14px;font-size:12px}.data-table th.sortable-th{cursor:pointer;-webkit-user-select:none;user-select:none}.data-table th.sortable-th:hover{color:var(--accent,#2563eb)}.data-table td{border-bottom:1px solid var(--border);color:var(--text);padding:10px 14px;font-size:14px}.data-table tr:last-child td{border-bottom:none}.cell-strong{color:var(--text-h);font-weight:600}.capitalize{text-transform:capitalize}.row-actions{white-space:nowrap;gap:12px;display:flex}.empty-row{text-align:center;color:var(--text);padding:24px}.status-badge{text-transform:capitalize;background:color-mix(in srgb, var(--badge-color) 15%, white);color:var(--badge-color);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}.tag{border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}.tag-indep{color:#15803d;background:#dcfce7}.tag-chain{color:#6d28d9;background:#ede9fe}.modal-backdrop{z-index:50;background:#0f172a80;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:12px;flex-direction:column;gap:14px;width:560px;max-width:100%;max-height:90vh;padding:28px;display:flex;overflow-y:auto}.form-row{gap:12px;display:flex}.product-editor{flex-direction:column;gap:8px;display:flex}.product-row{grid-template-columns:2fr 1fr 2fr auto;align-items:center;gap:8px;display:grid}.modal-actions{justify-content:flex-end;gap:10px;margin-top:8px;display:flex}