:root{--bg-primary: #0a0e17;--bg-secondary: #111827;--bg-card: rgba(17, 24, 39, .8);--bg-glass: rgba(255, 255, 255, .04);--bg-glass-hover: rgba(255, 255, 255, .08);--bg-input: rgba(255, 255, 255, .06);--bg-input-focus: rgba(255, 255, 255, .1);--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--text-inverse: #0a0e17;--accent: #6366f1;--accent-hover: #818cf8;--accent-soft: rgba(99, 102, 241, .15);--accent-glow: rgba(99, 102, 241, .4);--success: #22c55e;--success-soft: rgba(34, 197, 94, .15);--warning: #f59e0b;--warning-soft: rgba(245, 158, 11, .15);--danger: #ef4444;--danger-soft: rgba(239, 68, 68, .15);--danger-hover: #dc2626;--border: rgba(255, 255, 255, .08);--border-hover: rgba(255, 255, 255, .16);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px var(--accent-glow);--ease: cubic-bezier(.4, 0, .2, 1);--duration: .2s;--duration-slow: .4s;--sidebar-width: 260px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}h1,h2,h3,h4{font-weight:700;line-height:1.2;color:var(--text-primary)}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.125rem}a{color:var(--accent);text-decoration:none;transition:color var(--duration) var(--ease)}a:hover{color:var(--accent-hover)}button{cursor:pointer;font-family:inherit;font-size:.875rem;font-weight:600;border:none;border-radius:var(--radius-md);transition:all var(--duration) var(--ease)}input,select,textarea{font-family:inherit;font-size:.875rem;color:var(--text-primary);background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);padding:10px 14px;outline:none;transition:all var(--duration) var(--ease);width:100%}input:focus,select:focus,textarea:focus{background:var(--bg-input-focus);border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}textarea{resize:vertical;min-height:80px}select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}label{display:block;font-size:.8125rem;font-weight:500;color:var(--text-secondary);margin-bottom:var(--space-xs)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-md);font-weight:600;font-size:.875rem;transition:all var(--duration) var(--ease)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover);transform:translateY(-1px)}.btn-ghost{background:var(--bg-glass);color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg-glass-hover);color:var(--text-primary);border-color:var(--border-hover)}.btn-sm{padding:6px 12px;font-size:.8125rem}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;letter-spacing:.02em}.badge-active{background:var(--success-soft);color:var(--success)}.badge-out_of_stock{background:var(--warning-soft);color:var(--warning)}.glass-card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--duration) var(--ease)}.glass-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:var(--space-md);color:var(--text-secondary)}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.inline-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;display:inline-block}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);padding:var(--space-lg) 0;display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;right:auto;z-index:50}.sidebar-brand{display:flex;align-items:center;gap:var(--space-md);padding:0 var(--space-lg);margin-bottom:var(--space-2xl)}.sidebar-brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--accent),#a855f7);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#fff;font-weight:800}.sidebar-brand h2{font-size:1.125rem;background:linear-gradient(135deg,var(--text-primary),var(--accent-hover));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sidebar-nav{flex:1;padding:0 var(--space-sm)}.sidebar-link{display:flex;align-items:center;gap:var(--space-md);padding:10px var(--space-md);border-radius:var(--radius-md);color:var(--text-secondary);font-size:.875rem;font-weight:500;margin-bottom:2px;transition:all var(--duration) var(--ease)}.sidebar-link:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.sidebar-link.active{background:var(--accent-soft);color:var(--accent-hover)}.sidebar-link svg{width:20px;height:20px;flex-shrink:0}.sidebar-footer{padding:var(--space-md) var(--space-lg);border-top:1px solid var(--border)}.main-content{flex:1;margin-left:var(--sidebar-width);padding:var(--space-lg) var(--space-xl);min-height:100vh}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-xl);flex-wrap:wrap;gap:var(--space-md)}.page-header h1,.page-header-actions{display:flex;align-items:center;gap:var(--space-md)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-md);margin-bottom:var(--space-xl)}.stat-card{padding:var(--space-lg)}.stat-card .stat-label{font-size:.8125rem;color:var(--text-muted);margin-bottom:var(--space-xs)}.stat-card .stat-value{font-size:1.75rem;font-weight:800;background:linear-gradient(135deg,var(--text-primary),var(--accent-hover));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.toolbar{display:flex;align-items:center;gap:var(--space-md);margin-bottom:var(--space-lg);flex-wrap:wrap}.search-input{max-width:320px;padding-left:40px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3C/svg%3E");background-repeat:no-repeat;background-position:12px center}.filter-select{max-width:200px}.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-lg)}.product-card{overflow:hidden;display:flex;flex-direction:column}.product-card-image{width:100%;height:200px;object-fit:cover;border-bottom:1px solid var(--border);background:var(--bg-glass)}.product-card-body{padding:var(--space-md) var(--space-lg);flex:1;display:flex;flex-direction:column}.product-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-sm);margin-bottom:var(--space-sm)}.product-card-name{font-size:1rem;font-weight:700}.product-card-category{font-size:.75rem;color:var(--text-muted);margin-bottom:var(--space-sm)}.product-card-desc{font-size:.8125rem;color:var(--text-secondary);line-height:1.5;margin-bottom:var(--space-md);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-card-price{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md)}.price-current{font-size:1.25rem;font-weight:800;color:var(--accent-hover)}.price-original{font-size:.875rem;color:var(--text-muted);text-decoration:line-through}.product-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--text-muted);padding-top:var(--space-md);border-top:1px solid var(--border)}.product-card-actions{display:flex;gap:var(--space-sm)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;padding:var(--space-lg);animation:fadeIn var(--duration) var(--ease)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:slideUp var(--duration-slow) var(--ease)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg);border-bottom:1px solid var(--border)}.modal-header h2{font-size:1.25rem}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--bg-glass);color:var(--text-secondary);font-size:1.125rem;border:1px solid var(--border)}.modal-close:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.modal-body{padding:var(--space-lg)}.modal-footer{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-md);padding:var(--space-lg);border-top:1px solid var(--border)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}.form-group{display:flex;flex-direction:column}.form-group.full-width{grid-column:1 / -1}.form-error{color:var(--danger);font-size:.75rem;margin-top:var(--space-xs)}.image-upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:var(--space-xl);text-align:center;cursor:pointer;transition:all var(--duration) var(--ease);background:var(--bg-glass)}.image-upload-zone:hover{border-color:var(--accent);background:var(--accent-soft)}.image-upload-zone.has-image{padding:0;border-style:solid;overflow:hidden}.image-upload-zone img{width:100%;height:180px;object-fit:cover}.image-upload-text{color:var(--text-muted);font-size:.8125rem}.image-upload-text strong{color:var(--accent)}.delete-modal-body{text-align:center;padding:var(--space-xl) var(--space-lg)}.delete-icon{width:56px;height:56px;border-radius:50%;background:var(--danger-soft);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-lg);font-size:1.5rem}.delete-modal-body h3{margin-bottom:var(--space-sm)}.delete-modal-body p{color:var(--text-secondary);font-size:.875rem}.toast{position:fixed;bottom:var(--space-lg);right:var(--space-lg);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);font-size:.875rem;font-weight:500;z-index:200;animation:slideInRight var(--duration-slow) var(--ease);box-shadow:var(--shadow-lg)}@keyframes slideInRight{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast-success{background:var(--success);color:#fff}.toast-error{background:var(--danger);color:#fff}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);position:relative;overflow:hidden}.login-page:before{content:"";position:absolute;width:500px;height:500px;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);top:-100px;right:-100px;pointer-events:none}.login-page:after{content:"";position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(168,85,247,.2) 0%,transparent 70%);bottom:-100px;left:-100px;pointer-events:none}.login-card{width:100%;max-width:420px;padding:var(--space-2xl);position:relative;z-index:1}.login-brand{text-align:center;margin-bottom:var(--space-xl)}.login-brand-icon{width:56px;height:56px;background:linear-gradient(135deg,var(--accent),#a855f7);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;font-weight:800;margin:0 auto var(--space-md);box-shadow:var(--shadow-glow)}.login-brand h1{font-size:1.5rem;margin-bottom:var(--space-xs)}.login-brand p{color:var(--text-muted);font-size:.875rem}.login-form{display:flex;flex-direction:column;gap:var(--space-lg)}.login-error{background:var(--danger-soft);color:var(--danger);padding:var(--space-md);border-radius:var(--radius-md);font-size:.8125rem;text-align:center}.login-btn{width:100%;padding:12px;font-size:.9375rem}.empty-state{text-align:center;padding:var(--space-2xl) var(--space-lg);color:var(--text-muted)}.empty-state-icon{font-size:3rem;margin-bottom:var(--space-md);opacity:.5}.empty-state h3{color:var(--text-secondary);margin-bottom:var(--space-sm)}.empty-state p{font-size:.875rem;max-width:360px;margin:0 auto var(--space-lg)}@media (max-width: 768px){.sidebar{transform:translate(-100%);transition:transform var(--duration-slow) var(--ease)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0;padding:var(--space-md)}.form-grid,.products-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.mobile-menu-btn{display:none;position:fixed;top:var(--space-md);left:var(--space-md);z-index:60;width:40px;height:40px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:1.25rem;align-items:center;justify-content:center}@media (max-width: 768px){.mobile-menu-btn{display:flex}}