.article-header {
    background: var(--base200);
    padding: 120px 0 40px;
}

.breadcrumb {
    display: flex;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--base600);
    margin-bottom: 12px;
}

.breadcrumb a {
    color: var(--primary);
    font-weight: 600;
}

.article-category {
    display: inline-block;
    background: rgba(31, 122, 140, 0.12);
    color: var(--primary-dark);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    margin-bottom: 18px;
}

.article-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    margin-bottom: 12px;
}

.article-subtitle {
    color: var(--base600);
    font-size: 1.05rem;
    max-width: 700px;
}

.article-details {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    color: var(--base500);
    font-size: 0.85rem;
}

.article-hero-image {
    width: min(1200px, 90vw);
    height: 360px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(200, 208, 214, 0.6);
    box-shadow: var(--shadow-md);
}

.article-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content {
    background: var(--base100);
    padding: 48px 0 72px;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 28px;
    width: min(1200px, 90vw);
    margin: 0 auto;
}

.article-main {
    background: white;
    border: 1px solid rgba(200, 208, 214, 0.6);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.article-body {
    color: var(--base600);
    line-height: 1.8;
}

.article-body ul,
.article-body ol {
    margin: 16px 0 20px;
    padding-left: 1.25rem;
    list-style-position: outside;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body h2,
.article-body h3,
.article-body h4 {
    color: var(--base800);
    margin-top: 28px;
}

.article-body a {
    color: var(--primary-dark);
    font-weight: 600;
}

.article-sidebar {
    display: grid;
    gap: 18px;
}

.sidebar-widget {
    background: var(--base200);
    border: 1px solid rgba(200, 208, 214, 0.6);
    border-radius: 18px;
    padding: 20px;
}

.sidebar-widget ul,
.sidebar-widget ol {
    margin: 12px 0 0;
    padding-left: 1.25rem;
    list-style-position: outside;
}

.sidebar-widget ul {
    list-style: disc;
}

.sidebar-widget ol {
    list-style: decimal;
}

.sidebar-widget li {
    margin-bottom: 8px;
    color: var(--base600);
}

.widget-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    margin-bottom: 12px;
    color: var(--base500);
}

.related-post-title {
    color: var(--base800);
    font-weight: 600;
}

.related-post-date {
    color: var(--base500);
    font-size: 0.85rem;
}

.article-navigation {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(200, 208, 214, 0.6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.nav-item {
    background: var(--base200);
    border: 1px solid rgba(200, 208, 214, 0.6);
    border-radius: 16px;
    padding: 16px;
}

.nav-title {
    font-weight: 600;
    color: var(--base800);
}

@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .article-header {
        padding: 100px 0 32px;
    }

    .article-hero-image {
        height: 260px;
    }

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