/* ============================================================
   BLOG FILTERS — layout a tab, CSS puro, cacheabile
   ============================================================ */
.blog-filters {
    display: flex;
    flex-wrap: wrap;
    column-gap: 12px;          /* row-gap: 0 di proposito (linea aderente) */
    align-items: stretch;
    margin: 20px auto;
    max-width: 90%;
    font-family: var(--font-family-base, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
    color: var(--color-text-primary, #2c3e50);
}

/* Il wrapper si "scioglie": i suoi figli diventano flex item del container */
.blog-filters__nation { display: contents; }

/* Radio visivamente nascosto ma nel DOM (serve per :checked) */
.blog-filters input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

/* --- Tab --- */
.blog-filters label {
    order: 1;
    cursor: pointer;
    padding: 12px 16px;
    color: var(--color-text-secondary, #666);
    font-weight: 500;
    border-bottom: 3px solid transparent;
    border-radius: 6px 6px 0 0;
    white-space: nowrap;
    user-select: none;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-filters label:hover {
    color: var(--color-primary, #c00);
    background-color: var(--color-primary-pale, rgba(204, 0, 0, 0.08));
}

/* Tab attiva: generica, vale per QUALSIASI nazione */
.blog-filters__nation:has(input:checked) label {
    color: var(--color-primary, #c00);
    border-bottom-color: var(--color-primary, #c00);
    background-color: var(--color-primary-pale, rgba(204, 0, 0, 0.08));
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(204, 0, 0, 0.15);
}

/* Linea rossa full-width sotto la riga delle tab */
.blog-filters::after {
    content: '';
    order: 1;
    flex-basis: 100%;
    height: 2px;
    background: var(--color-primary, #c00);
}

/* ============================================================
   SITEMAP — multi-colonna
   ============================================================ */
.blog-sitemap {
    order: 2;
    flex-basis: 100%;
    display: none;
    column-count: 4;
    column-gap: 1.5rem;
    column-fill: balance;
    margin-top: 24px;
    padding: 20px 0;
}

/* Visibilità: generica, vale per QUALSIASI nazione */
.blog-filters__nation:has(input:checked) .blog-sitemap {
    display: block;
}

@media (max-width: 1400px) { .blog-sitemap { column-count: 3; column-gap: 1.25rem; } }
@media (max-width: 900px)  { .blog-sitemap { column-count: 2; column-gap: 1rem; } }
@media (max-width: 600px)  { .blog-sitemap { column-count: 1; } }

/* ============================================================
   CARD location
   ============================================================ */
.blog-sitemap .sitemap-group {
    break-inside: avoid;
    page-break-inside: avoid;
    -webkit-column-break-inside: avoid;
    margin: 0 0 1rem 0;
    background: var(--color-bg-alt, #f8f9fa);
    border: 1px solid var(--color-border-light, #efefef);
    border-radius: 8px;
    padding: 12px 14px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-sitemap .sitemap-group:hover {
    background: #fff;
    border-color: var(--color-primary-pale, rgba(204, 0, 0, 0.08));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.blog-sitemap .sitemap-group__title {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 8px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border, #e0e0e0);
    letter-spacing: -0.2px;
}

.blog-sitemap .sitemap-group__title a {
    color: var(--color-primary, #c00);
    text-decoration: none;
}

.blog-sitemap .sitemap-group__title a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.blog-sitemap .sitemap-group__list { list-style: none; margin: 0; padding: 0; }
.blog-sitemap .sitemap-item { padding: 4px 0; }

.blog-sitemap .sitemap-item a {
    color: var(--color-link, #0066cc);
    text-decoration: none;
    font-size: 13px;
    line-height: 1.45;
    display: inline-block;
    transition: all 120ms ease-in-out;
}

.blog-sitemap .sitemap-item a:hover {
    color: var(--color-link-hover, #004499);
    padding-left: 6px;
}

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 640px) {
    .blog-filters { margin: 10px 16px; }
    .blog-filters label { padding: 8px 12px; font-size: 13px; }
    .blog-sitemap .sitemap-group { padding: 10px 12px; }
    .blog-sitemap .sitemap-group__title { font-size: 14px; }
}