/* Article Page Styles */

/* Article Header */
.article-header {
    padding: 120px 0 48px;
    background-color: var(--bg-primary);
}

.article-meta {
    margin-bottom: 24px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--accent-primary);
}

.meta-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    max-width: 800px;
}

.article-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 680px;
    margin-bottom: 32px;
}

.article-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.article-author .author-avatar {
    width: 48px;
    height: 48px;
    font-size: 1rem;
}

.article-author .author-role {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Article Content */
.article-content {
    padding: 48px 0 80px;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 64px;
    max-width: 1000px;
}

/* Table of Contents */
.toc {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.toc h4 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

.toc ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toc a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
    display: block;
    padding-left: 12px;
    border-left: 2px solid transparent;
}

.toc a:hover,
.toc a.active {
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

/* Main Content */
.content {
    max-width: 720px;
}

.content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-top: 48px;
    margin-bottom: 16px;
    scroll-margin-top: 100px;
}

.content h2:first-of-type {
    margin-top: 0;
}

.content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
}

.content p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.content ul,
.content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.content ul {
    list-style-type: disc;
}

.content ol {
    list-style-type: decimal;
}

.content li {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.content a {
    color: var(--accent-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.content a:hover {
    text-decoration: none;
}

/* Code Blocks */
.content pre {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    overflow-x: auto;
}

.content code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

.content p code {
    background-color: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9375rem;
}

/* Callouts */
.callout {
    display: flex;
    gap: 16px;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 24px;
}

.callout-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.callout-content {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.callout-content strong {
    display: block;
    margin-bottom: 4px;
}

.callout-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.callout-warning .callout-icon {
    color: #f59e0b;
}

.callout-info {
    background-color: rgba(16, 163, 127, 0.1);
    border: 1px solid rgba(16, 163, 127, 0.3);
}

.callout-info .callout-icon {
    color: var(--accent-primary);
}

/* Share Section */
.share-section {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 0;
    margin-top: 48px;
    border-top: 1px solid var(--border-color);
}

.share-section span {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.share-buttons {
    display: flex;
    gap: 8px;
}

.share-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.share-btn:hover {
    background-color: var(--accent-primary);
    color: white;
}

/* Author Bio */
.author-bio {
    display: flex;
    gap: 20px;
    padding: 24px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    margin-top: 32px;
}

.author-bio .author-avatar.large {
    width: 64px;
    height: 64px;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.author-details h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.author-details p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.author-links {
    display: flex;
    gap: 16px;
}

.author-links a {
    font-size: 0.875rem;
    color: var(--accent-primary);
    text-decoration: none;
}

.author-links a:hover {
    text-decoration: underline;
}

/* Related Posts */
.related-posts {
    padding: 64px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.related-posts h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 32px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* Responsive */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .toc {
        display: none;
    }
}

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

    .article-title {
        font-size: 1.75rem;
    }

    .article-subtitle {
        font-size: 1rem;
    }

    .content h2 {
        font-size: 1.5rem;
    }

    .content h3 {
        font-size: 1.125rem;
    }

    .content p,
    .content li {
        font-size: 1rem;
    }

    .author-bio {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .author-links {
        justify-content: center;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .share-section {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Syntax Highlighting (basic) */
[data-theme="dark"] .content pre {
    background-color: #1a1a2e;
}

.content pre code {
    color: var(--text-primary);
}

/* Code language indicator */
.content pre[class*="language-"]::before {
    content: attr(class);
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.content pre {
    position: relative;
}

/* Image styling */
.content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 24px 0;
}

/* Blockquote */
.content blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: 20px;
    margin: 24px 0;
    font-style: italic;
    color: var(--text-secondary);
}

.content blockquote p {
    margin-bottom: 0;
}

/* Table styling */
.content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.content th,
.content td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.content th {
    font-weight: 600;
    background-color: var(--bg-secondary);
}

.content tr:hover {
    background-color: var(--bg-secondary);
}

/* Progress bar for reading */
.reading-progress {
    position: fixed;
    top: 64px;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent-gradient);
    z-index: 1001;
    transition: width 0.1s ease;
}