*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #eef2ff;--primary-glow: rgba(99,102,241,.15);--success: #10b981;--success-light: #d1fae5;--warning: #f59e0b;--warning-light: #fef3c7;--danger: #ef4444;--danger-light: #fee2e2;--info: #0ea5e9;--info-light: #e0f2fe;--bg: #f1f5f9;--card: #ffffff;--sidebar: #0f172a;--sidebar-hover: #1e293b;--sidebar-active: rgba(99,102,241,.15);--sidebar-text: #94a3b8;--sidebar-text-active: #ffffff;--border: #e2e8f0;--border-light: #f1f5f9;--text-primary: #0f172a;--text-secondary: #64748b;--text-muted: #94a3b8;--radius: 14px;--radius-sm: 10px;--radius-lg: 20px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.06);--shadow: 0 2px 8px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04);--shadow-lg: 0 8px 24px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.04);--shadow-xl: 0 20px 40px rgba(0,0,0,.12), 0 8px 16px rgba(0,0,0,.06);--sidebar-width: 250px;--font: "Inter", -apple-system, 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var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:var(--font);color:var(--text-primary);background:#fff;outline:none;transition:border-color .2s,box-shadow .2s}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.input::placeholder{color:var(--text-muted)}.input-lg{padding:13px 18px;font-size:16px;font-weight:600;border-radius:var(--radius)}.label{display:block;font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.04em}.badge{display:inline-flex;align-items:center;padding:3px 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var(--radius-lg)}.form-group{margin-bottom:18px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:480px){.form-row{grid-template-columns:1fr}}.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:14px;font-weight:500}.alert-error{background:var(--danger-light);color:#dc2626;border:1px solid #fecaca}.alert-success{background:var(--success-light);color:#059669;border:1px solid #a7f3d0}.alert-warning{background:var(--warning-light);color:#b45309;border:1px solid #fde68a}.alert-info{background:var(--info-light);color:#0369a1;border:1px solid #bae6fd}.stat-card{padding:22px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow-sm)}.stat-label{font-size:11px;font-weight:700;color:var(--text-muted);margin-bottom:8px;text-transform:uppercase;letter-spacing:.06em}.stat-value{font-size:28px;font-weight:800;color:var(--text-primary);line-height:1;letter-spacing:-.02em}.stat-sub{font-size:12px;color:var(--text-muted);margin-top:6px;font-weight:500}.stat-card-grad{padding:22px;border-radius:var(--radius);color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}.stat-card-grad:after{content:"";position:absolute;top:-50%;right:-30%;width:120px;height:120px;border-radius:50%;background:#ffffff14}.stat-card-grad .stat-label{color:#ffffffd9}.stat-card-grad .stat-value{color:#fff}.stat-card-grad 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var(--primary-glow)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:14px}.page-title{font-size:22px;font-weight:800;color:var(--text-primary);letter-spacing:-.02em}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr}.grid-4{grid-template-columns:1fr 1fr}}.divider{height:1px;background:var(--border);margin:8px 0}.empty-state{padding:48px 24px;text-align:center;color:var(--text-muted);font-weight:500}.empty-state-icon{font-size:40px;margin-bottom:12px}.empty-state-text{font-size:14px;font-weight:500}.spinner{width:20px;height:20px;border:2.5px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.page-loading{display:flex;align-items:center;justify-content:center;height:200px;color:var(--text-muted);gap:10px;font-weight:600}.mobile-header{display:none}@media(max-width:768px){.sidebar{display:none;position:fixed;z-index:800}.sidebar.open{display:flex}.mobile-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--sidebar);color:#fff;position:sticky;top:0;z-index:100}.main-content{padding:16px}.layout{flex-direction:column;overflow:visible;height:auto}.page-title{font-size:18px}}.pos-product-card{padding:14px;border-radius:var(--radius);border:1.5px solid var(--border);background:#fff;cursor:pointer;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;-webkit-user-select:none;user-select:none;box-shadow:var(--shadow-sm)}.pos-product-card:hover{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 3px var(--primary-glow),0 6px 20px #6366f12e}.pos-product-card.out-of-stock{opacity:.4;cursor:not-allowed}.pos-product-card.out-of-stock:hover{border-color:var(--border);background:#fff;box-shadow:var(--shadow-sm)}.cart-item{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid var(--border-light)}.cart-item:last-child{border-bottom:none}.payment-method-btn{padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius-sm);background:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;text-align:center}.payment-method-btn:hover{border-color:var(--primary);color:var(--primary)}.payment-method-btn.selected{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.bar-chart{display:flex;align-items:flex-end;gap:6px;height:80px}.bar{flex:1;background:var(--primary);border-radius:6px 6px 0 0;transition:height .4s cubic-bezier(.4,0,.2,1);min-height:4px}.toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:10px}.toast{padding:14px 20px;border-radius:var(--radius);box-shadow:var(--shadow-lg);font-size:13px;font-weight:600;max-width:360px;animation:slideInRight .3s cubic-bezier(.4,0,.2,1);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.toast-success{background:#ecfdf5f2;color:#065f46;border:1px solid #a7f3d0}.toast-error{background:#fef2f2f2;color:#991b1b;border:1px solid #fecaca}.toast-info{background:#eff6fff2;color:#1e40af;border:1px solid #bfdbfe}.search-bar{display:flex;align-items:center;gap:10px;background:#fff;border:1.5px solid var(--border);border-radius:var(--radius);padding:9px 16px;transition:border-color .2s,box-shadow .2s}.search-bar:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.search-bar input{border:none;outline:none;font-size:14px;flex:1;color:var(--text-primary);font-family:var(--font);background:transparent}.search-bar input::placeholder{color:var(--text-muted)}.tabs{display:flex;gap:4px;background:#fff;padding:4px;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.tab{padding:8px 18px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;cursor:pointer;border:none;background:transparent;color:var(--text-muted);transition:all .2s;font-family:var(--font)}.tab:hover{color:var(--text-primary)}.tab.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px var(--primary-glow)}.chip{display:inline-flex;align-items:center;gap:4px;padding:6px 14px;border-radius:99px;font-size:12px;font-weight:600;cursor:pointer;border:1.5px solid var(--border);background:#fff;color:var(--text-secondary);transition:all .2s}.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.chip.active{border-color:var(--primary);background:var(--primary);color:#fff;box-shadow:0 2px 8px var(--primary-glow)}.qty-control{display:flex;align-items:center;gap:8px}.qty-btn{width:30px;height:30px;border-radius:8px;border:1.5px solid var(--border);background:#fff;cursor:pointer;display:grid;place-items:center;font-size:16px;font-weight:700;transition:all .2s;color:var(--text-secondary)}.qty-btn:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}.qty-display{min-width:36px;text-align:center;font-weight:700}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes slideInRight{0%{opacity:0;transform:translate(24px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}.mobile-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:799;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}@media(max-width:768px){.mobile-overlay.show{display:block}}