/* Premium Blog Post Styles */

:root {
    --primary-color: #2563eb;
    --text-dark: #1a1a1a;
    --text-medium: #4a5568;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Base Typography */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--bg-light);
}

/* Blog Post Container */
.blog-post-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Premium Article Card */
.blog-post-article {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    padding: 3rem;
    margin-bottom: 2rem;
    position: relative;
}

@media (max-width: 768px) {
    .blog-post-article {
        padding: 2rem 1.5rem;
        border-radius: 8px;
    }
    
    .blog-post-container {
        margin: 1rem auto;
        padding: 0 0.5rem;
    }
}

/* Article Header */
.article-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-family: Georgia, 'Times New Roman', serif;
}

@media (max-width: 768px) {
    .article-title {
        font-size: 1.75rem;
    }
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.95rem;
    color: var(--text-medium);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-meta-label {
    font-weight: 600;
    color: var(--text-dark);
}

.category-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Article Content */
.article-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.article-content h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-family: Georgia, 'Times New Roman', serif;
    line-height: 1.3;
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.article-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.article-content p {
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.article-content strong {
    font-weight: 700;
    color: var(--text-dark);
}

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

.article-content li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.article-content a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid var(--primary-color);
    transition: all 0.2s;
}

.article-content a:hover {
    color: #1d4ed8;
    border-bottom-color: #1d4ed8;
}

/* Blockquotes */
.article-content blockquote {
    margin: 2rem 0;
    padding: 1.5rem 2rem;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    font-style: italic;
    color: var(--text-medium);
    border-radius: 0 8px 8px 0;
}

/* Code blocks */
.article-content code {
    background: var(--bg-light);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Monaco', 'Courier New', monospace;
}

.article-content pre {
    background: var(--text-dark);
    color: #f7fafc;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* Horizontal rules */
.article-content hr {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 2.5rem 0;
}

/* Images */
.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
}

/* Video embeds */
.article-content iframe {
    max-width: 100%;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

/* Tables */
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
    overflow: hidden;
}

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

.article-content th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-dark);
}

.article-content tr:last-child td {
    border-bottom: none;
}

/* References Section */
.references-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.references-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.references-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-medium);
}

.references-section p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--text-medium);
}

/* Author Bio */
.author-bio {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.author-bio h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.author-bio p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-medium);
    margin-bottom: 1rem;
}

.author-contact {
    font-size: 0.95rem;
    color: var(--text-medium);
}

.author-contact strong {
    color: var(--text-dark);
}

/* Back to Blog Link */
.back-to-blog {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    font-weight: 600;
    transition: all 0.2s;
    margin-bottom: 2rem;
}

.back-to-blog:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Disclosure Box */
.disclosure-box {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    border-radius: 0 8px 8px 0;
    font-size: 0.9rem;
    color: #78350f;
    line-height: 1.6;
}

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #60a5fa);
    z-index: 1000;
    transition: width 0.1s ease;
}

/* Print styles */
@media print {
    .blog-post-article {
        box-shadow: none;
        padding: 0;
    }
    
    .back-to-blog,
    .header,
    .footer {
        display: none;
    }
}



/* Social Sharing Section */
.social-share {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
    max-width: 100%;
    text-align: center;
}

.share-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
    color: var(--text-light);
}

.share-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    text-decoration: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.share-btn:active {
    transform: translateY(-1px);
}

.share-btn svg {
    width: 22px;
    height: 22px;
    fill: white;
}

/* Tooltip on hover */
.share-btn::after {
    content: attr(title);
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.share-btn:hover::after {
    opacity: 1;
}

/* Brand Colors */
.share-btn.whatsapp {
    background: #25D366;
}

.share-btn.whatsapp:hover {
    background: #1da851;
}

.share-btn.linkedin {
    background: #0077B5;
}

.share-btn.linkedin:hover {
    background: #005885;
}

.share-btn.twitter {
    background: #000000;
}

.share-btn.twitter:hover {
    background: #1a1a1a;
}

.share-btn.facebook {
    background: #1877F2;
}

.share-btn.facebook:hover {
    background: #0c5dbe;
}

.share-btn.email {
    background: #6B7280;
}

.share-btn.email:hover {
    background: #4B5563;
}

.share-btn.copy-link {
    background: var(--primary-color);
}

.share-btn.copy-link:hover {
    background: #1d4ed8;
}

@media (max-width: 768px) {
    .share-buttons {
        gap: 0.875rem;
    }
    
    .share-btn {
        width: 44px;
        height: 44px;
    }
    
    .share-btn svg {
        width: 20px;
        height: 20px;
    }
}