/* ===================================
   ARTICLE STYLES
   =================================== */

.article-header {
    background: linear-gradient(135deg, #8B1538 0%, #A52045 100%);
    color: white;
    padding: 120px 0 60px;
    margin-top: 70px;
}

.article-meta-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.back-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    opacity: 0.9;
}

.back-link:hover {
    opacity: 1;
    transform: translateX(-5px);
}

.article-category {
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.article-title {
    font-family: var(--font-display);
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    max-width: 900px;
}

.article-subtitle {
    font-size: 1.3rem;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 30px;
    max-width: 800px;
    font-weight: 300;
}

.article-meta {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    font-size: 0.95rem;
    opacity: 0.9;
}

.meta-item {
    display: flex;
    gap: 8px;
}

.meta-label {
    font-weight: 600;
}

/* Article Content */

.article-content {
    background: var(--bg-white);
    padding: 60px 0;
}

.article-content .container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    max-width: 1300px;
}

.article-body {
    max-width: 800px;
}

.article-image {
    width: 100%;
    margin-bottom: 40px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.article-image img {
    width: 100%;
    height: auto;
    display: block;
}

.content-section {
    margin-bottom: 50px;
}

.content-section h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 20px;
    margin-top: 40px;
}

.content-section h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    margin-top: 30px;
}

.content-section h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    margin-top: 20px;
}

.content-section p {
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.content-section p.lead {
    font-size: 1.25rem;
    color: var(--text-dark);
    line-height: 1.8;
    font-weight: 400;
}

.content-section ul,
.content-section ol {
    margin-left: 30px;
    margin-bottom: 20px;
}

.content-section li {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 12px;
    font-size: 1.05rem;
}

.content-section strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Callout Boxes */

.callout {
    padding: 25px;
    border-radius: 10px;
    margin: 30px 0;
    border-left: 4px solid;
}

.callout h4 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.2rem;
}

.callout p {
    margin-bottom: 12px;
}

.callout ul {
    margin-top: 12px;
    margin-bottom: 0;
}

.callout-warning {
    background: #FFF3CD;
    border-color: #FFC107;
}

.callout-warning h4 {
    color: #856404;
}

.callout-danger {
    background: #F8D7DA;
    border-color: #DC3545;
}

.callout-danger h4 {
    color: #721C24;
}

.callout-success {
    background: #D4EDDA;
    border-color: #28A745;
}

.callout-success h4 {
    color: #155724;
}

/* Blockquote */

blockquote {
    margin: 40px 0;
    padding: 30px 40px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 10px 10px 0;
}

blockquote p {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 15px;
}

blockquote cite {
    display: block;
    font-size: 0.95rem;
    color: var(--text-lighter);
    font-style: normal;
    font-weight: 600;
}

/* Data Table */

.data-table {
    overflow-x: auto;
    margin: 30px 0;
    box-shadow: 0 5px 20px var(--shadow-light);
    border-radius: 10px;
}

.data-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
}

.data-table th {
    background: var(--primary-color);
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-dark);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: var(--bg-light);
}

/* Case Studies */

.case-study {
    background: var(--bg-light);
    padding: 25px;
    border-radius: 10px;
    margin: 25px 0;
    border-left: 4px solid var(--accent-color);
}

.case-study h4 {
    color: var(--primary-color);
    margin-top: 0;
}

/* References */

.references ol {
    margin-left: 20px;
}

.references li {
    font-size: 0.95rem;
    color: var(--text-lighter);
    margin-bottom: 10px;
}

/* Article Footer */

.article-footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid var(--border-color);
}

.tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.tag {
    background: var(--primary-light);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.share {
    text-align: center;
}

.share p {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.share-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.share-btn {
    padding: 10px 25px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

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

/* Sidebar */

.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-section {
    background: var(--bg-light);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
}

.sidebar-section h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.related-articles {
    list-style: none;
}

.related-articles li {
    margin-bottom: 15px;
}

.related-articles a {
    color: var(--text-dark);
    text-decoration: none;
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.related-articles li:last-child a {
    border-bottom: none;
}

.related-articles a:hover {
    color: var(--primary-color);
    padding-left: 10px;
}

.download-btn {
    display: block;
    padding: 12px 20px;
    background: var(--bg-white);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    margin-bottom: 10px;
    transition: all var(--transition-fast);
    border: 2px solid var(--primary-color);
}

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

.cta-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.cta-box h3 {
    color: white;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 20px;
}

.cta-box .btn {
    width: 100%;
    text-align: center;
}

/* Responsive */

@media (max-width: 968px) {
    .article-content .container {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        position: static;
    }
    
    .article-title {
        font-size: 2.2rem;
    }
    
    .article-subtitle {
        font-size: 1.1rem;
    }
    
    .content-section h2 {
        font-size: 1.7rem;
    }
}

@media (max-width: 768px) {
    .article-header {
        padding: 100px 0 40px;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    blockquote {
        padding: 20px;
    }
    
    blockquote p {
        font-size: 1.05rem;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
}