/**
 * Article Page Styles - Medium-inspired Design
 */

/* Article Container */
.article-container {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Article Header */
.article-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.article-category {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    transition: background var(--transition-fast);
}

.article-category:hover {
    background: var(--primary-dark);
}

.article-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.article-subtitle {
    font-size: var(--font-size-xl);
    line-height: 1.4;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
}

/* Article Meta */
.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

.article-meta-item svg {
    width: 1rem;
    height: 1rem;
}

/* Author Section */
.article-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.article-author-avatar {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.article-author-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.article-author-info p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* Featured Image */
.article-featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

/* Article Content */
.article-content {
    font-family: 'Merriweather', Georgia, serif;
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
}

.article-content p {
    margin-bottom: var(--spacing-lg);
    max-width: 100%;
    word-wrap: break-word;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.article-content h1 { font-size: 2.5rem; }
.article-content h2 { font-size: 2rem; }
.article-content h3 { font-size: 1.75rem; }
.article-content h4 { font-size: 1.5rem; }
.article-content h5 { font-size: 1.25rem; }
.article-content h6 { font-size: 1.125rem; }

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    border-left: 4px solid var(--primary);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.article-content code {
    background: var(--bg-tertiary);
    padding: 0.125rem var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875em;
    color: var(--text-primary);
}

.article-content pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--border-color);
}

.article-content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-sm);
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

.article-content a:hover {
    color: var(--primary-dark);
}

.article-content hr {
    border: none;
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xl) 0;
}

/* Article Footer */
.article-footer {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.article-tags {
    margin-bottom: var(--spacing-lg);
}

.article-tags h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.article-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.article-tag {
    display: inline-block;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.article-tag:hover {
    background: var(--primary);
    color: white;
}

/* Article Actions */
.article-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.article-like-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.article-like-btn:hover {
    color: var(--accent-red);
}

.article-like-btn.liked {
    color: var(--accent-red);
}

.article-like-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

.article-share-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.article-share-btn {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.article-share-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.article-share-btn svg {
    width: 1rem;
    height: 1rem;
}

/* Author Bio Section */
.article-author-bio {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.article-author-bio-avatar {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.article-author-bio-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.article-author-bio-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.article-author-bio-follow {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.article-author-bio-follow:hover {
    color: var(--primary-dark);
}

/* Reading Progress */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--bg-tertiary);
    z-index: 1000;
    transform-origin: left;
}

.reading-progress-bar {
    height: 100%;
    background: var(--primary);
    transition: transform 0.1s ease-out;
}

/* Dark mode adjustments */
.dark .article-content {
    color: var(--text-primary);
}

.dark .article-content blockquote {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.dark .article-content code {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.dark .article-content pre {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .article-container {
        padding: 0 var(--spacing-md);
    }

    .article-title {
        font-size: 2rem;
    }

    .article-author {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .article-author-bio {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .article-actions {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }

    .article-share-buttons {
        justify-content: center;
    }
}