:root{--primary: #0f766e;--primary-dark: #115e59;--primary-light: #14b8a6;--primary-50: #f0fdfa;--primary-100: #ccfbf1;--danger: #dc2626;--danger-light: #fee2e2;--success: #16a34a;--success-light: #dcfce7;--warn: #d97706;--warn-light: #fef3c7;--bg: #f1f5f9;--card: #ffffff;--border: #e2e8f0;--text: #0f172a;--text-secondary: #334155;--muted: #64748b;--radius: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);--sidebar-bg: #1e293b;--sidebar-text: #cbd5e1;--sidebar-hover: rgba(255,255,255,.08);--transition: .15s ease;--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;font-size:14px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#0f172a,#1e293b 40%,#134e4a)}.login-card{background:var(--card);border:none;border-radius:var(--radius-lg);padding:40px 36px;width:100%;max-width:400px;box-shadow:var(--shadow-lg)}.login-logo{text-align:center;margin-bottom:8px}.login-logo svg{width:48px;height:48px;color:var(--primary)}.login-title{font-size:28px;font-weight:800;text-align:center;margin-bottom:4px;letter-spacing:-.5px;color:var(--text)}.login-sub{color:var(--muted);text-align:center;margin-bottom:28px;font-size:14px}.layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--sidebar-bg);color:var(--sidebar-text);padding:20px 12px;flex-shrink:0;display:flex;flex-direction:column;gap:2px;overflow-y:auto;transition:transform var(--transition)}.sidebar-overlay{display:none}.brand{font-weight:700;font-size:20px;color:#fff;padding:12px 12px 4px;display:flex;align-items:center;gap:8px}.brand-icon{width:28px;height:28px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:#fff;flex-shrink:0}.brand-tagline{font-size:11px;font-weight:400;color:#94a3b8;padding:0 12px 16px}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:6px;color:var(--sidebar-text);font-size:14px;font-weight:500;transition:background var(--transition),color var(--transition)}.nav-link:hover{background:var(--sidebar-hover);color:#fff}.nav-link.active{background:var(--primary);color:#fff;font-weight:600}.nav-link svg{width:18px;height:18px;flex-shrink:0;opacity:.7}.nav-link.active svg{opacity:1}.hamburger{display:none;background:none;border:none;color:var(--text);cursor:pointer;padding:8px;border-radius:6px}.hamburger:hover{background:var(--bg)}.hamburger svg{width:22px;height:22px}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{background:var(--card);border-bottom:1px solid var(--border);padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:10}.topbar-left{display:flex;align-items:center;gap:12px}.topbar-user{font-weight:600;font-size:14px}.topbar-role{font-size:12px;color:var(--muted);background:var(--bg);padding:2px 8px;border-radius:999px}.content{padding:24px;flex:1}.page-title{font-size:24px;font-weight:700;margin-bottom:20px;letter-spacing:-.3px;color:var(--text)}.section-title{font-size:16px;font-weight:600;margin-bottom:14px;color:var(--text-secondary)}.muted{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;margin-bottom:20px;box-shadow:var(--shadow-sm);transition:box-shadow var(--transition)}.card:hover{box-shadow:var(--shadow)}.card-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.card-label{color:var(--muted);font-size:13px;font-weight:500;text-transform:uppercase;letter-spacing:.3px}.card-value{font-size:28px;font-weight:700;margin:4px 0;letter-spacing:-.5px}.card-sub{color:var(--muted);font-size:13px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border:1px solid var(--border);background:var(--card);border-radius:var(--radius);cursor:pointer;font-size:14px;font-weight:500;transition:all var(--transition);white-space:nowrap;line-height:1.4}.btn:hover{border-color:var(--primary);color:var(--primary)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}.btn-secondary{background:var(--sidebar-bg);border-color:var(--sidebar-bg);color:#fff}.btn-secondary:hover{background:#334155;border-color:#334155;color:#fff}.btn-success{background:var(--success);border-color:var(--success);color:#fff;font-weight:600}.btn-success:hover{background:#15803d;border-color:#15803d;color:#fff}.btn-danger{border-color:var(--danger);color:var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-outline{background:transparent}.btn-sm{padding:4px 10px;font-size:13px}.btn-block{width:100%;text-align:center}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}.field{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);font-weight:500}.field input,.field select,.toolbar select,.card-head select,input[type=number],.qty-input,.search-input{padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;color:var(--text);background:#fff;transition:border-color var(--transition),box-shadow var(--transition)}.field input:focus,.field select:focus,.qty-input:focus,.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-100)}.form-actions{display:flex;gap:8px;align-items:flex-end}.qty-input{width:70px;text-align:center}.search-input{width:100%;margin-bottom:12px}.toolbar{display:flex;gap:16px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:14px;font-weight:500;display:flex;align-items:center;gap:8px}.alert-error{background:var(--danger-light);color:var(--danger);border:1px solid #fecaca}.alert-success{background:var(--success-light);color:var(--success);border:1px solid #bbf7d0}.toast{position:fixed;bottom:24px;right:24px;padding:12px 20px;border-radius:var(--radius);font-size:14px;font-weight:500;color:#fff;background:var(--primary);box-shadow:var(--shadow-lg);z-index:1000;animation:toast-in .2s ease}.toast-success{background:var(--success)}.toast-error{background:var(--danger)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow-sm)}.table{width:100%;border-collapse:collapse;background:var(--card)}.table th,.table td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}.table th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px;background:#f8fafc;position:sticky;top:0;z-index:1}.table tr:last-child td{border-bottom:none}.table tr:hover td{background:#f8fafc}.table-empty{color:var(--muted);font-style:italic;padding:24px 14px;text-align:center}.row-actions{display:flex;gap:6px;white-space:nowrap}.pagination{display:flex;gap:16px;align-items:center;justify-content:center;margin-top:16px;color:var(--muted)}.pos-grid{display:grid;grid-template-columns:1fr 380px;gap:20px;align-items:start}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.product-tile{border:1px solid var(--border);background:#fff;border-radius:var(--radius-lg);padding:16px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:6px;transition:all var(--transition);box-shadow:var(--shadow-sm)}.product-tile:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}.product-tile:disabled{opacity:.45;cursor:not-allowed;pointer-events:none}.product-name{font-weight:600;font-size:14px;color:var(--text)}.product-price{color:var(--primary);font-weight:700;font-size:16px}.product-stock{font-size:12px}.product-stock-out{color:var(--danger);font-weight:600}.totals{margin-top:14px;padding-top:14px;border-top:2px solid var(--border)}.total-row{display:flex;justify-content:space-between;align-items:center;padding:4px 0;font-size:14px}.grand-total{font-weight:700;font-size:18px;padding-top:8px;margin-top:4px;border-top:2px solid var(--primary);color:var(--primary-dark)}.receipt{border:2px solid var(--primary)}.receipt .section-title{color:var(--primary)}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#e2e8f0;color:var(--text-secondary);line-height:1.6}.badge-danger{background:var(--danger-light);color:var(--danger)}.badge-warn{background:var(--warn-light);color:var(--warn)}.badge-success{background:var(--success-light);color:var(--success)}.badge-primary{background:var(--primary-100);color:var(--primary-dark)}.text-danger{color:var(--danger);font-weight:600}.text-success{color:var(--success);font-weight:600}.text-primary{color:var(--primary);font-weight:600}.spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}.spinner-lg{width:36px;height:36px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}.center-page{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;height:60vh;color:var(--muted);font-size:14px}.empty-state{padding:40px 20px;text-align:center;color:var(--muted)}.empty-state-title{font-size:16px;font-weight:600;color:var(--text-secondary);margin-bottom:4px}@media (max-width: 900px){.pos-grid{grid-template-columns:1fr}.content{padding:16px}.table-wrap{overflow-x:auto}}@media (max-width: 768px){.sidebar{position:fixed;top:0;left:0;bottom:0;width:260px;z-index:100;transform:translate(-100%);box-shadow:var(--shadow-lg)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:99}.sidebar-overlay.open{display:block}.hamburger{display:flex}.topbar{padding:10px 16px}.product-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px}.product-tile{padding:12px}.form-grid{grid-template-columns:1fr}}