:root{--bg:#fff;--bg-subtle:#fafafa;--sidebar-bg:#0a0a0a;--sidebar-text:#a1a1aa;--sidebar-active:#fff;--text:#171717;--text-muted:#71717a;--accent:#18181b;--accent-hover:#27272a;--border:#00000014;--card-shadow:0 0 0 1px var(--border), 0 1px 2px #0000000a;--card-shadow-hover:0 0 0 1px var(--border), 0 4px 12px #0000000f;--success:#16a34a;--warning:#f59e0b;--danger:#dc2626;--radius:8px;--radius-sm:6px}*{box-sizing:border-box;margin:0;padding:0}html{font-size:15px}body{color:var(--text);background:var(--bg);font-family:Inter,system-ui,sans-serif}input,button,select,textarea{font-family:inherit;font-size:inherit}a{color:inherit;text-decoration:none}.app-layout{min-height:100vh;display:flex}.main-content{flex:1;margin-left:240px;padding:32px}.sidebar{background:var(--sidebar-bg);width:240px;height:100vh;color:var(--sidebar-text);z-index:50;flex-direction:column;display:flex;position:fixed;top:0;left:0}.sidebar-header{border-bottom:1px solid #ffffff0f;padding:24px 20px}.sidebar-header h1{color:var(--sidebar-active);letter-spacing:-.5px;font-size:18px;font-weight:600}.sidebar-header p{color:var(--sidebar-text);margin-top:2px;font-size:12px}.sidebar-nav{flex:1;padding:8px}.sidebar-nav a{border-radius:var(--radius-sm);align-items:center;gap:12px;margin-bottom:2px;padding:10px 12px;font-size:14px;font-weight:500;transition:all .15s;display:flex}.sidebar-nav a:hover{color:var(--sidebar-active);background:#ffffff0f}.sidebar-nav a.active{color:var(--sidebar-active);background:#ffffff1a}.sidebar-icon{opacity:.7;width:18px;height:18px}.sidebar-nav a.active .sidebar-icon{opacity:1}.page-header{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.page-header h2{letter-spacing:-.8px;font-size:24px;font-weight:600}.page-header p{color:var(--text-muted);margin-top:4px;font-size:14px}.card{background:var(--bg);border-radius:var(--radius);box-shadow:var(--card-shadow);transition:box-shadow .2s}.card:hover{box-shadow:var(--card-shadow-hover)}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:32px;display:grid}.stat-card{padding:20px 24px}.stat-card .stat-label{color:var(--text-muted);margin-bottom:6px;font-size:13px;font-weight:500}.stat-card .stat-value{letter-spacing:-1px;font-size:28px;font-weight:700}.stat-card .stat-sub{color:var(--text-muted);margin-top:4px;font-size:12px}.stat-card .stat-icon{border-radius:var(--radius-sm);justify-content:center;align-items:center;width:36px;height:36px;margin-bottom:12px;font-size:18px;display:flex}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .15s;display:inline-flex}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-subtle);color:var(--text);box-shadow:var(--card-shadow)}.btn-secondary:hover{background:#f4f4f5}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:4px 10px;font-size:13px}.btn-icon{justify-content:center;min-width:36px;padding:8px}.form-group{margin-bottom:16px}.form-group label{color:var(--text-muted);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-group input,.form-group select,.form-group textarea{border-radius:var(--radius-sm);border:1px solid #e4e4e7;outline:none;width:100%;padding:8px 12px;font-size:14px;transition:border-color .15s}.form-group input:focus,.form-group select:focus{border-color:#18181b}.form-group textarea{resize:vertical;min-height:80px}.table-wrapper{overflow-x:auto}table{border-collapse:collapse;width:100%}th{text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid #e4e4e7;padding:10px 16px;font-size:12px;font-weight:600}td{border-bottom:1px solid #f4f4f5;padding:12px 16px;font-size:14px}tr:hover td{background:var(--bg-subtle)}.modal-overlay{z-index:100;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg);border-radius:var(--radius);width:100%;max-width:480px;overflow:hidden;box-shadow:0 25px 50px #00000026}.modal-header{border-bottom:1px solid #f4f4f5;justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-header h3{font-size:18px;font-weight:600}.modal-body{padding:24px}.modal-footer{border-top:1px solid #f4f4f5;justify-content:flex-end;gap:8px;padding:16px 24px;display:flex}.product-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;display:grid}.product-thumb{border-radius:var(--radius-sm);cursor:pointer;text-align:center;box-shadow:var(--card-shadow);padding:16px;transition:all .15s}.product-thumb:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-1px)}.product-thumb .p-name{margin-bottom:4px;font-size:13px;font-weight:600}.product-thumb .p-price{color:var(--accent);font-size:14px;font-weight:700}.product-thumb .p-stock{color:var(--text-muted);margin-top:2px;font-size:11px}.product-thumb .p-category{color:var(--text-muted);background:var(--bg-subtle);border-radius:999px;margin-bottom:8px;padding:2px 8px;font-size:10px;font-weight:500;display:inline-block}.pos-layout{grid-template-columns:1fr 340px;gap:24px;height:calc(100vh - 120px);display:grid}.pos-products{padding-right:8px;overflow-y:auto}.cart-panel{background:var(--bg);border-radius:var(--radius);box-shadow:var(--card-shadow);flex-direction:column;max-height:calc(100vh - 120px);display:flex;position:sticky;top:0}.cart-header{border-bottom:1px solid #f4f4f5;padding:16px 20px}.cart-header h3{font-size:16px;font-weight:600}.cart-items{flex:1;padding:12px;overflow-y:auto}.cart-item{border-bottom:1px solid #f4f4f5;align-items:center;gap:10px;padding:8px 0;display:flex}.cart-item-info{flex:1}.cart-item-info .ci-name{font-size:13px;font-weight:500}.cart-item-info .ci-price{color:var(--text-muted);font-size:12px}.cart-item-qty{align-items:center;gap:6px;display:flex}.cart-item-qty button{background:var(--bg);cursor:pointer;border:1px solid #e4e4e7;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;display:flex}.cart-item-qty span{text-align:center;width:20px;font-size:13px;font-weight:600}.cart-footer{border-top:1px solid #f4f4f5;padding:16px 20px}.cart-total{justify-content:space-between;margin-bottom:12px;font-size:16px;font-weight:700;display:flex}.cart-total span:last-child{font-size:20px}.badge{border-radius:999px;padding:2px 10px;font-size:11px;font-weight:500;display:inline-block}.badge-green{color:#166534;background:#dcfce7}.badge-yellow{color:#92400e;background:#fef3c7}.badge-blue{color:#1e40af;background:#dbeafe}.badge-gray{color:#52525b;background:#f4f4f5}.search-bar{border-radius:var(--radius-sm);background:var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") 10px center no-repeat;border:1px solid #e4e4e7;outline:none;width:100%;padding:8px 12px 8px 36px;font-size:14px}.search-bar:focus{border-color:#18181b}.tag{background:var(--bg-subtle);color:var(--text-muted);border-radius:4px;align-items:center;gap:4px;padding:2px 8px;font-size:12px;display:inline-flex}.flex{display:flex}.flex-1{flex:1}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.items-center{align-items:center}.justify-between{justify-content:space-between}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.text-muted{color:var(--text-muted)}.text-right{text-align:right}.font-medium{font-weight:500}.font-bold{font-weight:700}.text-sm{font-size:13px}.category-tabs{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.category-tab{cursor:pointer;background:var(--bg);border:1px solid #e4e4e7;border-radius:999px;padding:6px 14px;font-size:13px;font-weight:500;transition:all .15s}.category-tab:hover{border-color:#18181b}.category-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.receipt-print{max-width:300px;margin:0 auto;padding:16px;font-family:Courier New,monospace;font-size:12px}.receipt-print h2{text-align:center;margin-bottom:8px;font-size:16px}.receipt-print .rp-line{justify-content:space-between;padding:2px 0;display:flex}.receipt-print .rp-divider{border-top:1px dashed #ccc;margin:8px 0}.receipt-print .rp-total{font-size:14px;font-weight:700}@media print{body *{visibility:hidden}.receipt-print,.receipt-print *{visibility:visible}.receipt-print{position:absolute;top:0;left:0}}