:root{--bg:#f6f7f9;--surface:#ffffff;--border:#e2e5ea;--text:#1c2230;--muted:#6b7280;--primary:#1d4ed8;--primary-dark:#1e40af;--danger:#dc2626;--success:#16a34a;--warning:#d97706}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px}a{color:var(--primary);text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:210px;background:#111827;color:#d1d5db;padding:16px 0;flex-shrink:0;display:flex;flex-direction:column}.sidebar .brand{font-size:18px;font-weight:700;color:#fff;padding:0 20px 16px;border-bottom:1px solid #1f2937;margin-bottom:8px}.sidebar .brand span{color:#60a5fa}.sidebar a{display:block;padding:10px 20px;color:#d1d5db;font-weight:500}.sidebar a.active,.sidebar a:hover{background:#1f2937;color:#fff}.sidebar .footer{margin-top:auto;padding:12px 20px;font-size:12px;color:#6b7280}.main{flex:1 1;padding:24px;max-width:1200px}h1{font-size:22px;margin:0 0 16px}h2{font-size:16px;margin:0 0 12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:16px}.row{display:flex;gap:16px;flex-wrap:wrap}.row>.card{flex:1 1;min-width:200px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}tr:hover td{background:#f9fafb}td.num,th.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}input,select{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:#fff;color:var(--text)}input:focus,select:focus{outline:2px solid #bfdbfe;border-color:var(--primary)}button{padding:8px 14px;border:none;border-radius:6px;cursor:pointer;background:var(--primary);color:#fff;font-size:14px;font-weight:600}button:hover{background:var(--primary-dark)}button:disabled{background:#9ca3af;cursor:not-allowed}button.secondary{background:#e5e7eb;color:var(--text)}button.secondary:hover{background:#d1d5db}button.danger{background:var(--danger)}button.small{padding:4px 10px;font-size:12px}.toolbar{display:flex;gap:8px;margin-bottom:16px;align-items:center;flex-wrap:wrap}.toolbar input[type=search],.toolbar input[type=text]{min-width:260px}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:600}.badge.ok{background:#dcfce7;color:var(--success)}.badge.warn{background:#fef3c7;color:var(--warning)}.badge.err{background:#fee2e2;color:var(--danger)}.badge.info{background:#dbeafe;color:var(--primary)}.error{color:var(--danger);margin:8px 0}.muted{color:var(--muted)}.metric{font-size:26px;font-weight:700}.metric-label{color:var(--muted);font-size:12px;text-transform:uppercase}.pos-grid{display:grid;grid-template-columns:1fr 380px;grid-gap:16px;gap:16px;align-items:start}@media (max-width:900px){.pos-grid{grid-template-columns:1fr}}.cat-chips{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.chip{background:#fff;color:var(--text);border:1px solid var(--border);border-radius:20px;padding:8px 14px;font-weight:500}.chip:hover{background:#f3f4f6}.chip-active,.chip-active:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.pos-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));grid-gap:10px;gap:10px;max-height:55vh;overflow-y:auto}.pos-card{background:#fff;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:10px;text-align:left;font-weight:400;display:flex;flex-direction:column;gap:4px}.pos-card:hover{background:#eff6ff;border-color:var(--primary)}.pos-card:active{transform:scale(.97)}.pos-card-img{height:56px;display:flex;align-items:center;justify-content:center;font-size:32px;background:#f3f4f6;border-radius:8px;overflow:hidden}.pos-card-img img{width:100%;height:100%;object-fit:cover}.pos-card-name{font-size:13px;font-weight:600;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:32px}.pos-card-price{font-size:15px;font-weight:700;color:var(--primary)}.pos-card-stock{font-size:11px}.empty-state{padding:16px;background:#f9fafb;border-radius:8px}.empty-state ol{margin:8px 0 0;padding-left:20px}.empty-state li{margin-bottom:6px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-box{width:360px}.login-box .card{padding:28px}.login-box input{width:100%;margin-bottom:12px}.login-box button{width:100%}