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(max-width:768px){.container{padding:0 var(--space-sm)}.section{padding:var(--space-2xl) 0}.menu-toggle{display:block}.main-nav{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(44,48,51,0.95);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;transform:translateX(-100%);transition:transform var(--transition-normal);z-index:999}.main-nav.show{transform:translateX(0)}.nav-list{flex-direction:column;gap:var(--space-lg);text-align:center}.nav-link{color:white;font-size:var(--font-size-lg);padding:var(--space-md) var(--space-xl)}.nav-link:hover,.nav-link.active{background:var(--color-primary);color:white}.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}.grid-auto{grid-template-columns:1fr}.grid-products{grid-template-columns:1fr;gap:var(--space-lg)}.hero-actions{flex-direction:column;align-items:center}.hero-actions 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