:root{--primary-50:#eff6ff;--primary-100:#dbeafe;--primary-200:#bfdbfe;--primary-300:#93c5fd;--primary-400:#60a5fa;--primary-500:#3b82f6;--primary-600:#2563eb;--primary-700:#1d4ed8;--primary-800:#1e40af;--primary-900:#1e3a8a;--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--bg-elevated:#fff;--bg-card:#fff;--bg-input:#fff;--text-primary:#0f172a;--text-secondary:#475569;--text-tertiary:#94a3b8;--text-inverse:#fff;--border-primary:#e2e8f0;--border-secondary:#cbd5e1;--border-focus:var(--primary-500);--success:#10b981;--success-bg:#d1fae5;--warning:#f59e0b;--warning-bg:#fef3c7;--error:#ef4444;--error-bg:#fee2e2;--info:#3b82f6;--info-bg:#dbeafe;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--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);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--radius-full:9999px;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code",monospace;--transition-fast:150ms ease;--transition-base:200ms ease;--transition-slow:300ms ease}[data-theme=dark]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--bg-elevated:#1e293b;--bg-card:#1e293b;--bg-input:#1e293b;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-tertiary:#64748b;--text-inverse:#0f172a;--border-primary:#334155;--border-secondary:#475569;--success-bg:#064e3b;--warning-bg:#78350f;--error-bg:#7f1d1d;--info-bg:#1e3a8a;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,.4),0 2px 4px -2px rgba(0,0,0,.3);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.4),0 4px 6px -4px rgba(0,0,0,.3);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.4),0 8px 10px -6px rgba(0,0,0,.3)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-secondary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,h1,h2,h3,h4,h5,h6{color:var(--text-primary)}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.125rem}p{color:var(--text-secondary)}a{color:var(--primary-600);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-700)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);font-size:.875rem;font-weight:500;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--primary-600) 0,var(--primary-700) 100%);color:#fff;box-shadow:var(--shadow-md),0 0 0 0 var(--primary-500)}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-500) 0,var(--primary-600) 100%);transform:translateY(-1px);box-shadow:var(--shadow-lg),0 0 20px -5px var(--primary-500)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-primary)}.btn-secondary:hover:not(:disabled){background:var(--border-primary)}.btn-danger{background:linear-gradient(135deg,var(--error) 0,#dc2626 100%);color:#fff}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#f87171 0,var(--error) 100%)}.btn-success{background:linear-gradient(135deg,var(--success) 0,#059669 100%);color:#fff}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-tertiary);color:var(--text-primary)}.btn-lg{padding:var(--space-4) var(--space-6);font-size:1rem}.btn-sm{padding:var(--space-2) var(--space-3);font-size:.75rem}.btn-icon{padding:var(--space-2);width:36px;height:36px}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}.form-input,.form-select,.form-textarea{width:100%;padding:var(--space-3) var(--space-4);font-size:.9375rem;background:var(--bg-input);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-fast)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px var(--primary-100)}[data-theme=dark] .form-input:focus,[data-theme=dark] .form-select:focus,[data-theme=dark] .form-textarea:focus{box-shadow:0 0 0 3px rgba(59,130,246,.2)}.form-input::placeholder{color:var(--text-tertiary)}.form-input-error{border-color:var(--error)}.form-error{font-size:.75rem;color:var(--error)}.form-hint{font-size:.75rem;color:var(--text-tertiary)}.glass{background:hsla(0,0%,100%,.7);backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);border:1px solid hsla(0,0%,100%,.3)}[data-theme=dark] .glass{background:rgba(15,23,42,.7);border:1px solid hsla(0,0%,100%,.1)}.glass-card{background:hsla(0,0%,100%,.8);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid hsla(0,0%,100%,.4);box-shadow:0 8px 32px 0 rgba(31,38,135,.07)}[data-theme=dark] .glass-card{background:rgba(30,41,59,.7);border:1px solid hsla(0,0%,100%,.05);box-shadow:0 8px 32px 0 rgba(0,0,0,.3)}.card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm);overflow:hidden}.card-header{padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--border-primary);display:flex;align-items:center;justify-content:space-between}.card-body{padding:var(--space-6)}.card-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--border-primary);background:var(--bg-tertiary)}.table-container{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border-primary)}.table{width:100%;border-collapse:collapse;font-size:.875rem}.table th{text-align:left;font-weight:600;color:var(--text-secondary);background:var(--bg-tertiary);white-space:nowrap}.table td,.table th{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--border-primary)}.table td{color:var(--text-primary)}.table tbody tr{transition:background var(--transition-fast)}.table tbody tr:hover{background:var(--bg-tertiary)}.table tbody tr:last-child td{border-bottom:none}.badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-2);font-size:.75rem;font-weight:500;border-radius:var(--radius-full)}.badge-success{background:var(--success-bg);color:var(--success)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.badge-error{background:var(--error-bg);color:var(--error)}.badge-info{background:var(--info-bg);color:var(--info)}.container{max-width:1400px;margin:0 auto;padding:0 var(--space-6)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6);flex-wrap:wrap;gap:var(--space-4)}.page-title{font-size:1.75rem;font-weight:700}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.grid{display:grid}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}@media (max-width:1024px){.grid-cols-3,.grid-cols-4{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}.page-header{flex-direction:column;align-items:flex-start}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.animate-fade-in{animation:fadeIn var(--transition-base) ease-out}.animate-slide-up{animation:slideUp var(--transition-slow) ease-out}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.animate-spin{animation:spin 1s linear infinite}.loading-spinner{width:24px;height:24px;border:2px solid var(--border-primary);border-top-color:var(--primary-500);border-radius:50%;animation:spin .8s linear infinite}.loading-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:50}.toast-container{position:fixed;top:var(--space-6);right:var(--space-6);z-index:100;display:flex;flex-direction:column;gap:var(--space-3)}.toast{padding:var(--space-4) var(--space-5);background:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);border-left:4px solid var(--primary-500);animation:slideUp var(--transition-base) ease-out;min-width:300px;max-width:400px}.toast-success{border-left-color:var(--success)}.toast-error{border-left-color:var(--error)}.toast-warning{border-left-color:var(--warning)}.stat-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:var(--space-6);border:1px solid var(--border-primary);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;right:0;width:100px;height:100px;background:linear-gradient(135deg,var(--primary-500) 0,transparent 60%);opacity:.1;border-radius:0 0 0 100%}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-1)}.stat-label{font-size:.875rem;color:var(--text-tertiary)}.stat-trend{display:flex;align-items:center;gap:var(--space-1);font-size:.75rem;margin-top:var(--space-2)}.stat-trend-up{color:var(--success)}.stat-trend-down{color:var(--error)}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;padding:var(--space-4);animation:fadeIn .3s ease-out}.modal{background:var(--bg-card);border-radius:var(--radius-2xl);box-shadow:0 25px 50px -12px rgba(0,0,0,.5);max-width:550px;width:100%;max-height:90vh;overflow-y:auto;animation:slideUp .4s cubic-bezier(.16,1,.3,1);border:1px solid var(--border-primary);z-index:101}[data-theme=dark] .modal{background:#1e293b}[data-theme=light] .modal{background:#fff}.modal-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--border-primary);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:1.125rem;font-weight:600}.modal-body{padding:var(--space-6)}.modal-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--border-primary);display:flex;justify-content:flex-end;gap:var(--space-3)}.sidebar{width:260px;height:100vh;background:var(--bg-card);border-right:1px solid var(--border-primary);position:fixed;left:0;top:0;display:flex;flex-direction:column;z-index:40;transition:transform var(--transition-base)}.sidebar-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--border-primary)}.sidebar-logo{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--primary-500) 0,var(--primary-700) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav{flex:1 1;padding:var(--space-4);overflow-y:auto}.nav-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);color:var(--text-secondary);font-weight:500;transition:all var(--transition-fast);margin-bottom:var(--space-1)}.nav-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.nav-item.active{background:linear-gradient(135deg,var(--primary-500) 0,var(--primary-600) 100%);color:#fff;box-shadow:var(--shadow-md)}.nav-icon{width:20px;height:20px;opacity:.8}.sidebar-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--border-primary)}.main-content{margin-left:260px;min-height:100vh;padding:var(--space-6)}@media (max-width:1024px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0}}.empty-state{text-align:center;padding:var(--space-12) var(--space-6)}.empty-state-icon{width:64px;height:64px;margin:0 auto var(--space-4);color:var(--text-tertiary);opacity:.5}.empty-state-title{font-size:1.125rem;font-weight:600;margin-bottom:var(--space-2)}.empty-state-text{color:var(--text-tertiary);margin-bottom:var(--space-6)}.product-image{object-fit:cover}.product-image,.product-image-placeholder{width:48px;height:48px;border-radius:var(--radius-md);background:var(--bg-tertiary)}.product-image-placeholder{display:flex;align-items:center;justify-content:center;color:var(--text-tertiary)}.search-wrapper{position:relative}.search-icon{position:absolute;left:var(--space-4);top:50%;transform:translateY(-50%);color:var(--text-tertiary);width:18px;height:18px}.search-input{padding-left:var(--space-10)}.price{font-weight:600;color:var(--text-primary)}.price-sale{color:var(--error)}.price-original{text-decoration:line-through;color:var(--text-tertiary);font-size:.875em}.toggle{position:relative;width:48px;height:26px;background:var(--border-secondary);border-radius:var(--radius-full);cursor:pointer;transition:background var(--transition-fast)}.toggle.active{background:var(--primary-500)}.toggle-knob{position:absolute;top:3px;left:3px;width:20px;height:20px;background:#fff;border-radius:50%;transition:transform var(--transition-fast);box-shadow:var(--shadow-sm)}.toggle.active .toggle-knob{transform:translateX(22px)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}