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h1{margin-bottom:.5rem;font-size:1.5rem;font-weight:700}.sf-success p{color:var(--sf-text-muted);margin-bottom:2rem}@media (max-width:1024px){.sf-product-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:768px){.sf-hero{min-height:300px}.sf-hero h1{font-size:1.75rem}.sf-product-grid{grid-template-columns:repeat(2,1fr);gap:1rem}.sf-section{padding:2rem 1rem}.sf-cart-panel{max-width:100%}.sf-category-filter{flex-wrap:nowrap;overflow-x:auto}.sf-qty-btn{width:36px;height:36px;font-size:1rem}.sf-qty-value{min-width:32px}}@media (max-width:480px){.sf-product-grid{grid-template-columns:1fr}}.sf-checkout-error{background:var(--sf-error-bg);color:var(--sf-error-text);border-radius:var(--sf-radius-md);border:1px solid #dc262626;margin-bottom:1rem;padding:.75rem 1rem;font-size:.875rem}