/* ============================================
   ARTICLE DETAIL PAGE STYLES
   ============================================ */

/* Article Header */
.article-header {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(6, 182, 212, 0.05));
    padding: var(--spacing-xl) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

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

.breadcrumb i {
    font-size: 1rem;
}

.article-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.15;
    color: var(--text-dark);
    letter-spacing: -0.03em;
}

.article-info {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.category-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-base);
}

.category-badge:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.category-badge i {
    font-size: 1rem;
}

.article-info .date,
.article-info .read-time {
    color: var(--text-light);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.article-info .date i,
.article-info .read-time i {
    font-size: 1.125rem;
    color: var(--primary-color);
}

/* Featured Image */
.article-featured-image {
    padding: 0;
    background: var(--bg-primary);
}

.article-featured-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    display: block;
}

/* Article Content Section */
.article-content-section {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--bg-primary);
}

.article-main {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.article-body-content {
    line-height: 1.8;
}

.article-body-content .lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(6, 182, 212, 0.05));
    border-left: 4px solid var(--primary-color);
    border-radius: var(--radius-md);
}

.article-body-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 700;
}

.article-body-content h2:first-child {
    margin-top: 0;
}

.article-body-content p {
    margin-bottom: var(--spacing-md);
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 1.0625rem;
}

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

.article-body-content li {
    margin-bottom: 0.75rem;
    color: var(--text-medium);
    line-height: 1.7;
}

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

/* Sidebar */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.author-card,
.related-articles,
.share-section {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    transition: var(--transition-base);
}

.author-card:hover,
.related-articles:hover,
.share-section:hover {
    box-shadow: var(--shadow-md);
}

.author-card h3,
.related-articles h3,
.share-section h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.author-card h3 i,
.related-articles h3 i,
.share-section h3 i {
    font-size: 1.375rem;
    color: var(--primary-color);
}

.author-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: var(--spacing-sm) 0;
    display: block;
    border: 3px solid var(--border-color);
}

.author-card h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.author-card p {
    font-size: 0.9375rem;
    color: var(--text-light);
    margin-bottom: 0;
}

.related-articles ul {
    list-style: none;
    margin-left: 0;
}

.related-articles li {
    margin-bottom: var(--spacing-sm);
}

.related-articles a {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    border-left: 3px solid transparent;
}

.related-articles a i {
    font-size: 1rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.related-articles a:hover {
    border-left-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(6, 182, 212, 0.05));
    transform: translateX(4px);
}

.related-articles a:hover i {
    transform: translateX(4px);
}

.related-articles strong {
    font-size: 0.9375rem;
    color: var(--text-dark);
    line-height: 1.5;
}

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

.share-btn {
    flex: 1;
    min-width: 80px;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--transition-base);
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.share-btn i {
    font-size: 1.125rem;
}

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

.share-btn.twitter:hover {
    background: #1DA1F2;
    border-color: #1DA1F2;
}

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

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

/* Comments Section */
.comments-section {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--bg-secondary);
}

.comments-section .container {
    max-width: 800px;
}

.comments-section h2 {
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
}

.comments-section h2 i {
    font-size: 2rem;
    color: var(--primary-color);
}

.no-comments {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.0625rem;
}

.no-comments i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.comment-form {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    margin-top: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.comment-form h3 {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
}

.comment-form h3 i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9375rem;
}

.form-group label i {
    font-size: 1.125rem;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
    background: var(--bg-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.comment-form .btn {
    margin-top: var(--spacing-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.comment-form .btn i {
    font-size: 1.125rem;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: clamp(2rem, 5vw, 2.5rem);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.cta-section h2 i {
    font-size: 2.5rem;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.cta-section p {
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

.cta-section .btn {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-section .btn:hover {
    background: var(--bg-secondary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.cta-section .btn i {
    font-size: 1.125rem;
    transition: var(--transition-base);
}

.cta-section .btn:hover i {
    transform: translateX(-4px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .article-main {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        order: -1;
    }

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

    .article-info {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .comment-form {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .article-header {
        padding: 40px 15px;
    }

    .article-title {
        font-size: 1.6rem;
    }

    .article-content-section {
        padding: 40px 15px;
    }

    .article-body-content .lead {
        padding: 1rem;
        font-size: 1rem;
    }

    .article-body-content h2 {
        font-size: 1.3rem;
        margin-top: 1.5rem;
    }

    .comments-section {
        padding: 40px 15px;
    }

    .cta-section {
        padding: 40px 15px;
    }

    .cta-section h2 {
        font-size: 1.6rem;
    }
}