:root{--bg-primary: #0F172A;--bg-secondary: #1E293B;--bg-surface: #334155;--text-primary: #F8FAFC;--text-secondary: #94A3B8;--accent-color: #3B82F6;--accent-hover: #60A5FA;--accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);--skeleton: rgba(255, 255, 255, .05);--skeleton-highlight: rgba(255, 255, 255, .1);--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--border-radius: 12px;--transition-speed: .3s;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;background-color:var(--bg-primary);color:var(--text-primary)}@keyframes skeleton-loading{0%{background-color:var(--skeleton)}to{background-color:var(--skeleton-highlight)}}.skeleton{animation:skeleton-loading 1s linear infinite alternate;border-radius:4px}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;display:flex;flex-direction:column}.app-container{display:flex;min-height:100vh;width:100vw;overflow:hidden}.btn-primary{background:var(--accent-gradient);color:#fff;border:none;padding:12px 24px;border-radius:var(--border-radius);font-weight:600;cursor:pointer;transition:transform var(--transition-speed) ease,box-shadow var(--transition-speed) ease;width:100%;font-size:16px}.btn-primary:active{transform:scale(.98)}.btn-primary:hover{box-shadow:0 4px 12px #3b82f666}.glass-pane{background:#1e293bb3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:var(--border-radius)}.input-field{width:100%;padding:14px 16px;border-radius:8px;border:1px solid #475569;background:#0f172a;color:var(--text-primary);font-size:16px;margin-bottom:16px;transition:border-color var(--transition-speed)}.input-field:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 2px #3b82f633}.pos-container{display:flex;height:calc(100vh - 70px);width:100%;overflow:hidden;position:relative}.product-grid{flex:1;padding:16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;overflow-y:auto;align-content:flex-start}.product-card{background:var(--bg-secondary);border:1px solid rgba(255,255,255,.05);border-radius:var(--border-radius);padding:16px;text-align:center;cursor:pointer;transition:transform .1s ease,border-color .2s ease;-webkit-user-select:none;user-select:none;position:relative;overflow:hidden}.product-card:active{transform:scale(.95);border-color:var(--accent-color)}.product-card h4{font-size:14px;margin-bottom:8px;color:var(--text-primary)}.product-card p{font-size:16px;font-weight:700;color:var(--success)}.cart-sidebar{width:350px;background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-left:1px solid rgba(255,255,255,.05);display:flex;flex-direction:column;transition:transform .3s cubic-bezier(.16,1,.3,1);z-index:30}@media (max-width: 768px){.cart-sidebar{position:absolute;right:0;top:0;bottom:0;transform:translate(100%);width:90%;max-width:400px}.cart-sidebar.open{transform:translate(0)}}.mobile-app-content{padding-bottom:80px}.cart-item{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.05)}.qty-btn{background:var(--bg-surface);border:none;color:#fff;width:28px;height:28px;border-radius:6px;cursor:pointer;font-weight:700;display:inline-flex;align-items:center;justify-content:center}@media print{nav,aside,header,.no-print,.glass-pane button,button,.animate-spin,.mobile-nav,input[type=month],select{display:none!important}body,.app-container,main,.pos-container,.mobile-app-content{background:#fff!important;color:#000!important;height:auto!important;overflow:visible!important;width:100%!important;display:block!important;padding:0!important;margin:0!important;position:static!important}.glass-pane{background:#fff!important;border:1px solid #eee!important;box-shadow:none!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important;margin-bottom:20px!important;break-inside:avoid}table{width:100%!important;border-collapse:collapse!important}th,td{border-bottom:1px solid #eee!important;color:#000!important}h1,h2,h3,h4,span,p,div{color:#000!important}.accent-color{color:#000!important;font-weight:700}.print-btn{display:none!important}}