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h3{color:#1f2937;font-size:1.25rem;font-weight:700}.item-code{background:#f3f4f6;border-radius:6px;color:#6b7280;font-size:.875rem;font-weight:600;padding:.375rem .75rem}.inventory-details{margin-bottom:1rem}.stock-value{color:#10b981;font-weight:700}.inventory-actions{display:flex;gap:.75rem;margin-top:1rem}@media (max-width:768px){.inventory-grid{grid-template-columns:1fr}}.app-container{background:linear-gradient(135deg,#f5f7fa,#c3cfe2);display:flex;min-height:100vh}.main-content{flex:1 1;margin-left:280px;min-height:100vh;padding:2rem;transition:margin-left .3s cubic-bezier(.4,0,.2,1)}.main-content.sidebar-closed{margin-left:80px}@media (max-width:768px){.main-content{margin-left:0;padding:1rem}.main-content.sidebar-closed{margin-left:0}}