/* ===== ARTICLES INDEX ===== */
.articles-index {
    flex: 1;
    padding: 2rem 1rem;
}

.articles-hero {
    max-width: 1100px;
    margin: 0 auto 2rem;
}

.articles-hero h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.articles-hero p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.articles-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.article-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: box-shadow 0.2s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.article-card:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
    transform: translateY(-3px);
    text-decoration: none;
}

.article-card-author {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.article-card h2 {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-primary);
    margin: 0;
}

.article-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.55;
    margin: 0;
}

/* ===== ARTICLE PAGE ===== */
.article-content {
    flex: 1;
    padding: 2rem 1rem;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 2rem;
}

.article-back {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.article-back:hover {
    text-decoration: underline;
}

.article-header h1 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.article-summary {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 1rem;
}

.article-meta {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.article-body h3 {
    color: var(--accent);
    margin: 1.5rem 0 0.75rem;
    font-size: 1.25rem;
}

.article-body p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.article-body ul, .article-body ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.article-body li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.25rem;
}

.article-footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

/* Article body: table responsiveness (mobile) */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.article-body th, .article-body td {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    text-align: left;
}
.article-body th {
    background: var(--surface);
    font-weight: 600;
}

/* Article body: h2 (used in long-form articles) */
.article-body h2 {
    font-size: 1.45rem;
    font-weight: 700;
    margin: 2rem 0 0.75rem;
    line-height: 1.3;
    color: var(--text-primary);
}

/* Related articles in article footer */
.article-related-section {
    margin-bottom: 2rem;
}
.article-related-section h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}
.article-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}
.article-related-grid .related-article-card {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s;
}
.article-related-grid .related-article-card:hover {
    border-color: var(--primary);
}
.article-related-grid .related-article-card h3 {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--primary);
    margin: 0;
    line-height: 1.35;
}
.article-related-grid .related-article-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* Converter CTA in article footer */
.article-converter-cta {
    margin-bottom: 1.5rem;
    text-align: center;
}
.article-converter-cta .btn-primary {
    display: inline-block;
    padding: 0.65rem 1.4rem;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: opacity 0.15s;
}
.article-converter-cta .btn-primary:hover { opacity: 0.88; }