/* Article Page Styles - Dark Theme */

/* Article Header */
.article-header {
    padding: 140px 0 80px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

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

.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
    transition: var(--transition);
}

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

.article-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.article-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 32px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 24px;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
}

.article-date {
    font-size: 14px;
    color: var(--text-tertiary);
}

/* Article Content */
.article-content {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.article-body {
    max-width: 720px;
    margin: 0 auto;
}

.article-body .lead {
    font-size: 20px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-weight: 400;
}

.article-body p {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.article-body h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 48px 0 24px;
    letter-spacing: -0.02em;
}

.article-body h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 16px;
}

.article-body ul,
.article-body ol {
    margin: 24px 0;
    padding-left: 24px;
}

.article-body li {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.article-body li strong {
    color: var(--text-primary);
}

.article-body blockquote {
    margin: 32px 0;
    padding: 24px 32px;
    background: var(--bg-tertiary);
    border-left: 4px solid var(--accent-primary);
    border-radius: 0 12px 12px 0;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.article-body a {
    color: var(--accent-primary);
    text-decoration: underline;
    transition: var(--transition);
}

.article-body a:hover {
    color: var(--accent-secondary);
}

/* Highlight Box */
.highlight-box {
    margin: 32px 0;
    padding: 32px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid var(--accent-primary);
    border-radius: 16px;
}

.highlight-box h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 20px;
}

.highlight-box p {
    margin-bottom: 12px;
}

.highlight-box p:last-child {
    margin-bottom: 0;
}

.highlight-box ul {
    margin: 16px 0 0;
}

/* Article CTA */
.article-cta {
    margin: 48px 0;
    padding: 48px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    text-align: center;
}

.article-cta h3 {
    font-size: 28px;
    margin: 0 0 12px;
    color: var(--text-primary);
}

.article-cta p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.article-cta .btn-primary {
    display: inline-block;
    color: white !important;
    text-decoration: none;
}

/* Article Share */
.article-share {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.share-text strong {
    color: var(--text-primary);
    font-size: 15px;
}

.share-buttons {
    display: flex;
    gap: 12px;
}

.share-button {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.share-button:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Related Articles */
.related-articles {
    padding: 80px 0;
    background: var(--bg-primary);
}

.related-articles h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 73px;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    z-index: 999;
    transition: width 0.1s ease;
}

/* Responsive - Mobile First Design */
@media (max-width: 768px) {
    /* Global consistency fixes */
    * {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    /* Article Header - Compact */
    .article-header {
        padding: 100px 0 40px;
    }

    .article-header-content {
        padding: 0 16px;
    }

    .back-link {
        font-size: 13px;
        margin-bottom: 24px;
    }

    .article-header h1 {
        font-size: 26px;
        line-height: 1.25;
        margin-bottom: 12px;
    }

    .article-subtitle {
        font-size: 15px;
        line-height: 1.5;
        margin-bottom: 24px;
    }

    .article-meta {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 16px;
    }

    .author-avatar {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .author-name {
        font-size: 14px;
    }

    .article-date {
        font-size: 13px;
    }

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

    .article-body {
        padding: 0 16px;
    }

    .article-body .lead {
        font-size: 16px;
        line-height: 1.65;
        margin-bottom: 24px;
    }

    .article-body p {
        font-size: 15px;
        line-height: 1.7;
        margin-bottom: 20px;
    }

    .article-body h2 {
        font-size: 22px;
        line-height: 1.3;
        margin: 32px 0 16px;
        scroll-margin-top: 80px;
    }

    .article-body h3 {
        font-size: 18px;
        line-height: 1.4;
        margin: 24px 0 12px;
    }

    .article-body ul,
    .article-body ol {
        margin: 20px 0;
        padding-left: 20px;
    }

    .article-body li {
        font-size: 15px;
        line-height: 1.7;
        margin-bottom: 10px;
    }

    .article-body blockquote {
        padding: 16px 20px;
        margin: 24px 0;
        font-size: 15px;
        line-height: 1.6;
        border-radius: 0 8px 8px 0;
    }

    /* Highlight Box - Compact */
    .highlight-box {
        padding: 20px;
        margin: 24px 0;
        border-radius: 12px;
    }

    .highlight-box h3 {
        font-size: 17px;
        margin-bottom: 12px;
    }

    .highlight-box p {
        font-size: 14px;
        line-height: 1.6;
    }

    .highlight-box ul {
        margin: 12px 0 0;
    }

    /* Article CTA - Full Width */
    .article-cta {
        margin: 40px 0;
        padding: 28px 20px;
        border-radius: 12px;
    }

    .article-cta h3 {
        font-size: 22px;
        margin-bottom: 10px;
    }

    .article-cta p {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .article-cta .btn-primary {
        width: 100%;
        padding: 14px 24px;
    }

    /* Article Share - Stacked Layout */
    .article-share {
        margin-top: 40px;
        padding-top: 24px;
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .share-text {
        text-align: left;
    }

    .share-text strong {
        font-size: 14px;
    }

    .share-buttons {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .share-button {
        padding: 10px 16px;
        font-size: 13px;
        text-align: center;
    }

    .share-button:hover {
        transform: none;
    }

    /* Related Articles - Compact Cards */
    .related-articles {
        padding: 48px 0;
    }

    .related-articles h2 {
        font-size: 24px;
        margin-bottom: 24px;
        text-align: left;
        padding: 0 16px;
    }

    .related-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 16px;
    }

    /* Reading Progress Bar */
    .reading-progress {
        top: 69px;
    }
}