.container{width:min(100% - 2rem,var(--container));margin:0 auto}
.narrow{width:min(100% - 2rem,880px);margin:0 auto}
.narrow-container{width:min(100% - 2rem,760px);margin:0 auto}
.section{padding:6rem 0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2rem}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.5rem}
.dynamic-grid{display:grid;grid-template-columns:repeat(var(--grid-columns,4),minmax(0,1fr));gap:1.5rem}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;min-height:88vh}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:2rem}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.desktop-nav{display:flex;gap:2rem}
.nav-actions{display:flex;gap:.85rem;align-items:center}
.account-layout,.cart-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.85fr);gap:2rem;align-items:start}
@media (max-width: 960px){.grid-4,.grid-3,.grid-2,.hero-grid,.footer-grid,.account-layout,.cart-layout{grid-template-columns:1fr}.dynamic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.desktop-nav,.hide-mobile{display:none}.section{padding:4.5rem 0}}
@media (max-width: 640px){.dynamic-grid{grid-template-columns:1fr}}