/* Tablet & Below */
@media (max-width: 991px) {
    .header-nav {
        display: none;
    }

    .header-nav.open {
        display: flex;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-bg-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        z-index: var(--z-dropdown);
    }

    .header-nav.open .nav-item {
        width: 100%;
    }

    .header-nav.open .nav-dropdown {
        position: static;
        box-shadow: none;
        padding: 0 0 0 var(--spacing-md);
        display: none;
    }

    .header-nav.open .nav-item.dropdown-open .nav-dropdown {
        display: block;
    }

    .menu-toggle {
        display: flex;
    }

    .footer-inner {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1 {
        font-size: var(--font-size-4xl);
    }

    .list-layout {
        grid-template-columns: 1fr;
    }

    .list-sidebar {
        position: static;
    }

    .entry-cards {
        grid-template-columns: 1fr;
    }

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

    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

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

    .article-nav {
        grid-template-columns: 1fr;
    }

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

/* Mobile */
@media (max-width: 767px) {
    .header-inner {
        height: 60px;
    }

    .header-logo img {
        height: 40px;
    }

    .header-nav.open {
        top: 60px;
    }

    .header-search {
        display: none;
    }

    .main {
        padding-top: 60px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .hero h1 {
        font-size: var(--font-size-3xl);
    }

    .hero-btns {
        flex-direction: column;
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    .list-hero h1 {
        font-size: var(--font-size-2xl);
    }

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

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

    .article-header h1 {
        font-size: var(--font-size-2xl);
    }

    .author-box {
        flex-direction: column;
        text-align: center;
    }

    .article-share {
        flex-wrap: wrap;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .card-img {
        height: 200px;
    }

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

    .single-page h1,
    .single-page-title {
        font-size: var(--font-size-2xl);
    }

    .calculator-widget,
    .quiz-widget {
        padding: var(--spacing-lg);
    }

    .quiz-btn {
        padding: 12px 16px;
        font-size: var(--font-size-sm);
    }
}

/* Small Mobile */
@media (max-width: 575px) {
    .container {
        padding: 0 var(--spacing-md);
    }

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

    .list-sub-nav {
        gap: var(--spacing-xs);
    }

    .sub-nav-item {
        font-size: var(--font-size-xs);
        padding: 4px 10px;
    }

    .product-price-lg .price-current {
        font-size: var(--font-size-2xl);
    }
}

/* Large Desktop */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
}