@media (max-width: 1080px) {
    .category-grid,
    .products-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .process-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .container {
        padding: 0 18px;
    }

    .header-inner {
        min-height: 68px;
    }

    .mobile-menu {
        display: inline-block;
    }

    .nav-links {
        position: absolute;
        left: 18px;
        right: 18px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: white;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        justify-content: center;
    }

    .hero-home,
    .hero-custom {
        min-height: auto;
        padding: 58px 0;
    }

    .hero-grid,
    .page-hero-grid,
    .quality-grid,
    .story-grid,
    .checkout-grid,
    .contact-grid,
    .tracking-grid,
    .custom-grid,
    .custom-explainer-grid,
    .cart-layout {
        grid-template-columns: 1fr;
    }

    .hero-copy h1,
    .page-hero h1 {
        font-size: 2.35rem;
    }

    .page-hero {
        padding: 56px 0;
    }

    .section {
        padding: 54px 0;
    }

    .cart-summary {
        position: static;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .brand span {
        display: none;
    }

    .cart-symbol {
        font-size: 0.76rem;
    }

    .hero-actions,
    .lab-band-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions .btn,
    .lab-band .btn {
        width: 100%;
    }

    .hero-note {
        position: static;
        margin-top: 12px;
        flex-direction: column;
    }

    .category-grid,
    .products-grid,
    .process-grid,
    .product-detail,
    .product-meta-grid,
    .form-grid.two,
    .form-grid.three {
        grid-template-columns: 1fr;
    }

    .cart-item {
        grid-template-columns: 82px minmax(0, 1fr);
    }

    .cart-item img {
        width: 82px;
        height: 72px;
    }

    .cart-item-controls {
        grid-column: 1 / -1;
        justify-content: flex-start;
    }

    .product-actions {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}