:root{--primary: #4f46e5;--primary-hover: #4338ca;--bg-color: #f3f4f6;--surface: #ffffff;--surface-hover: #f9fafb;--text-main: #1f2937;--text-muted: #6b7280;--danger: #ef4444;--danger-hover: #dc2626;--border: #e5e7eb;--success: #10b981;--warning: #f59e0b;--shadow-sm: 0 1px 3px rgba(0,0,0,.05);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.05), 0 2px 4px -2px rgba(0,0,0,.05);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.05), 0 4px 6px -4px rgba(0,0,0,.05)}[data-theme=dark]{--bg-color: #0b0f19;--surface: #151c2c;--surface-hover: #1f293d;--text-main: #f3f4f6;--text-muted: #9ca3af;--border: rgba(255,255,255,.08)}[data-theme=dark] .topbar{background:#151c2cd9}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body,input,button,select,textarea{font-family:Roboto,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-color:var(--bg-color);color:var(--text-main);font-size:1.05rem;line-height:1.5;letter-spacing:-.015em;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.app-container{display:flex;height:100vh;overflow:hidden}.sidebar{width:280px;background:linear-gradient(180deg,#1e1b4b,#312e81 40%,#111827);border-right:none;display:flex;flex-direction:column;box-shadow:4px 0 20px #00000026;z-index:10}.sidebar-header{padding:28px 24px;font-size:1.35rem;font-weight:800;color:#fff;border-bottom:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:12px;background:#00000026;letter-spacing:-.02em}.nav-links{padding:24px 16px;display:flex;flex-direction:column;gap:6px;flex:1;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:12px;color:#94a3b8;text-decoration:none;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);font-size:.95rem;border:1px solid transparent}.nav-item:hover{background:#ffffff0f;color:#fff;transform:translate(6px);border-color:#ffffff0d}.nav-item.active{background:linear-gradient(90deg,#10b98140,#10b9810d);color:#fff;box-shadow:inset 4px 0 0 var(--primary);border-color:#10b9811a;border-left:none}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-color)}.topbar{height:76px;background:#ffffffd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 40px;z-index:5}.user-profile:hover{background:var(--surface-hover)}.content-area{flex:1;overflow-y:auto;padding:40px}h1{font-size:2rem;font-weight:800;margin-bottom:24px;color:var(--text-main);letter-spacing:-.02em}h2{font-size:1.5rem;font-weight:700;margin-bottom:16px;color:var(--text-main);letter-spacing:-.01em}h3{font-size:1.15rem;font-weight:600;margin-bottom:12px;color:var(--text-main)}.quick-actions-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.charts-grid{display:grid;grid-template-columns:7fr 3fr;gap:24px;margin-bottom:24px}.lists-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-bottom:40px}.stat-card{background:var(--surface);padding:24px;border-radius:16px;border:1px solid var(--border);display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.4,0,.2,1)}.stat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}.stat-title{color:var(--text-muted);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.stat-value{font-size:2.25rem;font-weight:800;color:var(--text-main);letter-spacing:-.02em}.stat-icon{position:absolute;top:50%;right:-10px;transform:translateY(-50%);color:var(--primary);opacity:.08;width:90px;height:90px}.chart-container,.table-container{background:var(--surface);padding:24px;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow-md);margin-bottom:32px}.table-responsive{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}table{width:100%;border-collapse:separate;border-spacing:0;text-align:left}th{background:var(--surface-hover);padding:14px 20px;font-weight:700;color:var(--text-muted);border-bottom:2px solid var(--border);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}th:first-child{border-top-left-radius:8px}th:last-child{border-top-right-radius:8px}td{padding:16px 20px;border-bottom:1px solid var(--border);vertical-align:middle;color:var(--text-main);font-size:.95rem;white-space:nowrap}tr:last-child td{border-bottom:none}tr:hover td{background:var(--surface-hover)}.badge{padding:6px 12px;border-radius:6px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.02em}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;border:none;transition:all .2s ease;font-size:.9rem;box-shadow:var(--shadow-sm)}.btn-primary{background:linear-gradient(135deg,var(--primary),#34d399);color:#fff;box-shadow:0 4px 6px -1px #10b98133,0 2px 4px -2px #10b98133}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),#10b981);transform:translateY(-2px);box-shadow:0 10px 15px -3px #10b9814d,0 4px 6px -4px #10b9814d}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover);transform:translateY(-1px)}.btn-outline{background:var(--surface);border:1px solid #cbd5e1;color:#475569;font-weight:600;box-shadow:none}.btn-outline:hover{background:#f1f5f9;border-color:#94a3b8;color:#0f172a}.form-group{margin-bottom:24px}.form-label{display:block;margin-bottom:8px;font-weight:600;font-size:.85rem;color:#475569}.form-control{width:100%;padding:12px 16px;background:#f8fafc;border:1.5px solid #e2e8f0;border-radius:10px;color:#1e293b;font-size:.95rem;transition:all .2s cubic-bezier(.4,0,.2,1);font-family:inherit}.form-control:hover{border-color:#cbd5e1;background:#f1f5f9}.form-control:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px #4f46e51a;transform:translateY(-1px)}.d-flex{display:flex}.align-items-center{align-items:center}.justify-content-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.pos-grid{display:grid;grid-template-columns:2fr 1.3fr;gap:24px}.pos-products-panel,.pos-cart-panel{background:var(--surface);border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow-md);display:flex;flex-direction:column;height:calc(100vh - 160px)}.panel-header{padding:20px 24px;border-bottom:1px solid var(--border);font-weight:700;display:flex;justify-content:space-between;align-items:center;background:#f8fafc;color:#1e293b;flex-shrink:0}.panel-body{padding:24px;flex:1;overflow-y:auto;background:#fff;display:flex;flex-direction:column;min-height:250px}.panel-footer{padding:24px;border-top:1px solid var(--border);background:#f8fafc;flex-shrink:0}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.product-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:20px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;box-shadow:var(--shadow-sm)}.product-card:hover{border-color:var(--primary);transform:translateY(-4px) scale(1.02);box-shadow:var(--shadow-md)}.product-card h4{font-size:1rem;margin-bottom:6px;color:#1e293b;font-weight:700}.product-card .price{color:var(--primary);font-weight:800;font-size:1.1rem}.product-card .stock{font-size:.7rem;font-weight:700;background:#f1f5f9;padding:4px 8px;border-radius:12px;position:absolute;top:12px;right:12px}.cart-item{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px dashed #cbd5e1}.cart-item:last-child{border-bottom:none}.cart-item-info{flex:1}.cart-item-title{font-weight:700;margin-bottom:4px;color:#1e293b;font-size:.95rem}.cart-item-price{color:#64748b;font-size:.85rem;font-weight:500}.cart-item-controls{display:flex;align-items:center;gap:8px;background:#f8fafc;border-radius:8px;padding:4px;border:1px solid #e2e8f0}.cart-item-controls button{background:#fff;border:1px solid #e2e8f0;color:#475569;width:28px;height:28px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:700;transition:all .1s;box-shadow:var(--shadow-sm)}.cart-item-controls button:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.modal-overlay{position:fixed;inset:0;background:#0f172a66;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;opacity:1;animation:fadeIn .2s ease-out}.modal-content{background:var(--surface);border-radius:16px;width:100%;max-width:550px;border:1px solid rgba(255,255,255,.2);box-shadow:0 25px 50px -12px #00000040;transform:translateY(0);animation:slideUp .3s cubic-bezier(.16,1,.3,1);overflow:hidden}.modal-header{padding:24px 32px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;background:#f8fafc}.modal-header h3{margin:0;font-size:1.25rem;font-weight:800;color:#0f172a}.close-btn{background:#e2e8f0;border:none;color:#475569;cursor:pointer;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:all .2s}.close-btn:hover{background:#ef4444;color:#fff}.modal-body{padding:32px;max-height:65vh;overflow-y:auto}.modal-footer{padding:20px 32px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:12px;background:#f8fafc}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#f3f4f6,#e5e7eb)}.login-card{background:#fffffff2;padding:48px;border-radius:24px;box-shadow:0 25px 50px -12px #0000001a;border:1px solid rgba(255,255,255,.8);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);width:100%}@media(max-width:600px){.login-card{padding:32px 24px;border-radius:16px}}@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)}}@media(max-width:1200px){.pos-grid{grid-template-columns:1.5fr 1fr}}@media(max-width:992px){.app-container{flex-direction:column;height:100vh;overflow:hidden}.sidebar{position:fixed;top:0;left:-280px;width:280px;height:100vh;flex-direction:column;align-items:stretch;padding:0;border-right:1px solid var(--border);border-bottom:none;z-index:50;transition:left .3s cubic-bezier(.4,0,.2,1)}.sidebar.mobile-open{left:0}.sidebar-header{border-bottom:1px solid rgba(255,255,255,.08);border-right:none;padding:24px}.nav-links{flex-direction:column;overflow-y:auto;overflow-x:hidden;padding:16px;white-space:normal;align-items:stretch;flex:1;min-height:0}.nav-item{padding:14px 18px}.topbar{padding:0 20px;height:60px}.content-area{padding:20px}.mobile-menu-btn,.mobile-close-btn{display:block!important}.pos-grid{grid-template-columns:1fr;gap:16px;display:flex;flex-direction:column}.mobile-pos-tabs{display:flex!important;gap:8px;margin-bottom:8px}.mobile-pos-tabs button{flex:1;padding:14px;border-radius:12px;border:1px solid var(--border);background:var(--surface);font-weight:700;color:var(--text-muted);display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:all .2s}.mobile-pos-tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 4px 10px #10b9814d}.pos-grid.mobile-tab-products .pos-cart-panel,.pos-grid.mobile-tab-cart .pos-products-panel{display:none!important}.pos-products-panel,.pos-cart-panel{height:calc(100vh - 200px);flex:none;min-height:auto}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.quick-actions-grid{grid-template-columns:repeat(2,1fr)}.charts-grid,.lists-grid{grid-template-columns:1fr}.form-control,.btn{font-size:.9rem;padding:10px 14px}h1,.responsive-h1{font-size:1.6rem!important;margin-bottom:16px!important}h2{font-size:1.3rem!important}h3{font-size:1.1rem!important}.topbar{height:60px;padding:0 16px}.content-area{padding:16px}.mobile-profile-footer{display:block!important}}.mobile-profile-footer{display:none}@media(max-width:480px){h1,.responsive-h1{font-size:1.4rem!important}.login-card{padding:24px 16px}}@media(max-width:600px){.content-area{padding:12px}.stats-grid,.quick-actions-grid{grid-template-columns:1fr}.cart-item{flex-direction:column;align-items:flex-start;gap:12px}.cart-item-controls{width:100%;justify-content:space-between}.details,.totals{flex-direction:column;width:100%}.table-container{overflow-x:auto}}@media(max-width:992px){.hide-on-mobile{display:none!important}.products-actions-wrapper{flex-direction:column;gap:12px!important}.products-actions-wrapper>div{max-width:100%!important;width:100%}.products-buttons-grid{width:100%;display:grid!important;grid-template-columns:repeat(2,1fr);gap:8px!important}.products-buttons-grid .btn,.products-buttons-grid label{font-size:.85rem!important;padding:10px 12px!important;text-align:center;justify-content:center}.table-responsive table th,.table-responsive table td{padding:10px 8px!important;font-size:.85rem}}.mobile-profile-footer{display:none!important;flex-shrink:0}@media(max-width:992px){.mobile-profile-footer{display:flex!important;flex-direction:column;flex-shrink:0;overflow-y:auto;max-height:45vh}}