/* ===== BLOG HERO ===== */
.blog-hero {
    background: linear-gradient(135deg, var(--bg), var(--bg-2));
    color: #fff;
    padding: 48px 0 32px;
}

.blog-hero h1 {
    font-size: 34px;
    line-height: 1.2;
    margin: 0 0 12px;
    font-weight: 800;
}

.blog-hero-sub {
    margin: 0;
    max-width: 760px;
    color: #e5f2ff;
    font-size: 18px;
}

/* ===== LAYOUT A 3 COLONNE ===== */
.blog-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 260px;
    gap: 32px;
    margin: 32px auto 64px;
    max-width: 1200px;
    padding: 0 20px;
}

/* ===== SIDEBAR SINISTRA (INDICE) ===== */
.blog-sidebar-left {
    font-size: 14px;
    color: var(--mut);
    position: sticky;
    top: 100px;
    align-self: start;
}

.blog-sidebar-left h3 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0;
    margin-bottom: 8px;
    color: #0f4166;
}

.blog-sidebar-left ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.blog-sidebar-left li {
    margin: 6px 0;
}

.blog-sidebar-left a {
    color: var(--mut);
    text-decoration: none;
}

.blog-sidebar-left a:hover {
    color: var(--pri);
    text-decoration: underline;
}

/* ===== COLONNA CENTRALE (ARTICOLO) ===== */
.blog-article {
    max-width: 760px;
    margin: 0 auto;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    line-height: 1.7;
    color: #0d1b2a;
}

.blog-article h1 {
    font-size: 34px;
    margin-top: 0;
    margin-bottom: 18px;
    font-weight: 800;
}

.blog-article h2 {
    font-size: 26px;
    margin-top: 36px;
    margin-bottom: 12px;
    color: #0f4166;
    font-weight: 700;
}

.blog-article h3 {
    font-size: 20px;
    margin-top: 24px;
    margin-bottom: 8px;
    font-weight: 700;
}

.blog-article p {
    font-size: 17px;
    margin: 14px 0;
}

.blog-article ul,
.blog-article ol {
    margin: 14px 0 14px 24px;
    font-size: 17px;
}

.blog-article li {
    margin: 6px 0;
}

.blog-article .formula,
.blog-article .highlight {
    background: #f4f7fb;
    padding: 12px 14px;
    border-left: 4px solid var(--pri);
    border-radius: 8px;
    font-weight: 600;
    margin: 18px 0;
}

/* Tabelle */
.blog-article table {
    width: 100%;
    border-collapse: collapse;
    margin: 22px 0;
    font-size: 15px;
}

.blog-article th,
.blog-article td {
    border: 1px solid #e2e8f0;
    padding: 8px 10px;
}

.blog-article th {
    background: #eaf5ff;
    font-weight: 700;
}

/* Link */
.blog-article a {
    color: var(--pri);
    font-weight: 600;
}

.blog-article a:hover {
    text-decoration: underline;
}

/* Meta tag e intro */
.post-meta {
    font-size: 14px;
    color: var(--mut);
    margin-bottom: 4px;
}

.post-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: #eaf5ff;
    color: #0a64a8;
    font-weight: 600;
    font-size: 12px;
    margin-bottom: 10px;
}

.post-intro {
    font-size: 18px;
    color: var(--mut);
}

/* ===== SIDEBAR DESTRA ===== */
.blog-sidebar-right h3 {
    font-size: 16px;
    margin-top: 0;
    margin-bottom: 10px;
    color: #0f4166;
}

.blog-sidebar-right ul {
    list-style: none;
    padding-left: 0;
    font-size: 14px;
    margin: 0 0 18px;
}

.blog-sidebar-right li {
    margin: 6px 0;
}

.blog-sidebar-right a {
    
    text-decoration: none;
}

.blog-sidebar-right a:hover {
    text-decoration: underline;
}

.cta-box {
    margin-top: 10px;
    padding: 16px;
    border-radius: 12px;
    background: #f4f7fb;
    border: 1px solid #e1e7f0;
    font-size: 14px;
}

.cta-box h3 {
    margin-top: 0;
    margin-bottom: 6px;
    font-size: 15px;
}

/* ===== CTA FINALE ===== */
.blog-cta-final {
    background: #f4f7fb;
    padding: 32px 0;
    border-top: 1px solid #e1e7f0;
    border-bottom: 1px solid #e1e7f0;
}

.blog-cta-final h2 {
    margin: 0 0 6px;
    font-size: 24px;
}

.blog-cta-final p {
    margin: 0 0 14px;
    color: var(--mut);
}

/* Brand link cliccabile nel header */
.brand a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    text-decoration: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .blog-layout {
        grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
        grid-template-areas:
            "main main"
            "right right";
    }
    .blog-sidebar-left {
        display: none;
    }
}

@media (max-width: 768px) {
    .blog-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 24px;
    }
    .blog-sidebar-right {
        order: 2;
    }
    .blog-hero h1 {
        font-size: 28px;
    }
    .blog-hero-sub {
        font-size: 16px;
    }
}