/* ==========================================================================
   Responsive - Aesthetic Editorial
   ========================================================================== */

@media (max-width: 767px) {
    :root {
        --font-size-2xl: 24px;
        --font-size-3xl: 28px;
        --font-size-hero: 36px;
        --gap: 20px;
        --header-height: 60px;
    }

    .header-inner { padding: 0 16px; }
    .container { padding: 0 16px; }

    .layout-with-sidebar {
        display: grid;
        grid-template-columns: 1fr;
    }
    .sidebar { width: 100%; min-width: 100%; }
    .article-grid { grid-template-columns: 1fr; gap: 32px; }
    .article-grid .article-card:first-child {
        grid-column: auto;
        display: block;
    }
    .article-grid .article-card:first-child .article-card__thumbnail { aspect-ratio: 3/2; }
    .article-grid .article-card:first-child .article-card__title { font-size: 20px; }

    /* Header */
    .menu-toggle { display: flex; }
    .header-nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0; right: 0; bottom: 0;
        background: var(--color-bg);
        padding: 32px 24px;
        z-index: 99;
        overflow-y: auto;
    }
    .header-nav.is-open { display: block; }
    .nav-menu { flex-direction: column; gap: 0; }
    .nav-menu a {
        padding: 16px 0;
        font-size: var(--font-size-base);
        border-bottom: 1px solid var(--color-border);
        text-transform: none;
        letter-spacing: 0.04em;
    }
    .nav-menu > li > a::before { display: none; }
    .nav-menu .sub-menu { position: static; border: none; box-shadow: none; padding: 0 0 0 20px; display: block; }
    .site-tagline { display: none; }

    /* Hero */
    .hero-section { padding: 56px 0 48px; }
    .hero-section__title { font-size: 32px; }

    /* Single */
    .single-header { text-align: left; }
    .single-header__title { font-size: 24px; }
    .single-header__meta { justify-content: flex-start; }
    .single-content > *:first-child::first-letter {
        font-size: 2.4em;
        margin-right: 6px;
    }
    .single-content h2 { font-size: 20px; margin: 48px 0 20px; text-align: left; padding-bottom: 16px; }
    .single-content h2::after { left: 0; transform: none; }
    .single-content h3 { font-size: 17px; margin: 36px 0 14px; }
    .single-content blockquote { padding: 24px; font-size: 18px; }

    /* Product card */
    .product-card { padding: 24px; }
    .product-card__inner { flex-direction: column; }
    .product-card__image { width: 100%; max-width: 200px; margin: 0 auto; }
    .product-card__buttons { flex-direction: column; }

    /* CTA */
    .affiliate-cta__button { width: 100%; min-width: auto; }
    .affiliate-cta-group { flex-direction: column; }
    .affiliate-cta-group .affiliate-cta__button { width: 100%; min-width: auto; }

    /* Table → cards */
    .comparison-table, .comparison-table thead, .comparison-table tbody,
    .comparison-table th, .comparison-table td, .comparison-table tr { display: block; }
    .comparison-table thead { display: none; }
    .comparison-table tbody tr {
        border: 1px solid var(--color-border);
        margin-bottom: 16px;
        padding: 24px;
    }
    .comparison-table tbody tr.recommended-row { border-color: var(--color-accent); }
    .comparison-table td { padding: 6px 0; text-align: left; border-bottom: none; }
    .comparison-table td::before {
        content: attr(data-label);
        display: block;
        font-size: 9px;
        font-weight: 500;
        color: var(--color-text-light);
        margin-bottom: 4px;
        letter-spacing: 0.15em;
        text-transform: uppercase;
    }
    .comparison-table .rank-cell { width: auto; }
    .comparison-table .cta-cell .affiliate-cta__button { width: 100%; }

    /* Footer */
    .site-footer { margin-top: 64px; padding-top: 48px; }
    .site-footer::before { height: 40px; top: -40px; }
    .footer-inner { grid-template-columns: 1fr; gap: 36px; }

    /* Author */
    .author-box { flex-direction: column; text-align: center; align-items: center; }

    /* TOC */
    .toc { padding: 24px; }

    /* Search */
    .search-form { max-width: 100%; }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1023px) {
    .layout-with-sidebar {
        display: grid;
        grid-template-columns: 1fr;
    }
    .sidebar {
        width: 100%;
        min-width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    .sidebar-widget, .sidebar .widget { margin-bottom: 0; }
    .site-tagline { display: block; }
}

/* Desktop */
@media (min-width: 1024px) {
    .site-tagline { display: block; }
    .sidebar { position: sticky; top: calc(var(--header-height) + 32px); }
}