/* ========================================
   Blog Module Styles
   Modern, Responsive, Production-Ready
   ======================================== */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container */
    --container-max-width: 1200px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Container base styling */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* ========================================
   Blog Hero Section
   ======================================== */
.blog-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: var(--spacing-2xl) 2.5rem var(--spacing-xl);
    color: white;
    text-align: center;
}

.blog-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.blog-hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.95;
    line-height: 1.6;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* ========================================
   Blog Main Layout
   ======================================== */
.blog-main {
    padding: var(--spacing-2xl) 0;
    padding-left: 0;
    padding-right: 0;
    background: var(--bg-secondary);
}

.blog-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    align-items: start;
    max-width: var(--container-max-width);
    margin: 0 auto;
    max-width: 100%;
}

@media (max-width: 992px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }
    
    .blog-main {
        padding-left: 0;
        padding-right: 0;
    }
    
    .blog-hero {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (max-width: 640px) {
    .blog-main {
        padding-left: 1rem;
        padding-right: 1rem;
        padding-top: var(--spacing-xl);
        padding-bottom: var(--spacing-xl);
    }
    
    .blog-hero {
        padding-left: 1rem;
        padding-right: 1rem;
        padding-top: var(--spacing-xl);
        padding-bottom: var(--spacing-lg);
    }
    
    .blog-controls {
        padding: var(--spacing-md);
    }
    
    .filter-controls {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .pagination-numbers {
        order: -1;
    }
}

/* ========================================
   Search and Filters
   ======================================== */
.blog-controls {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.search-container {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-input {
    width: 100%;
    padding: 1rem 1.25rem 1rem 3.25rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1), 0 4px 12px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

.search-icon {
    position: absolute;
    left: 1.125rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    pointer-events: none;
    transition: transform 0.3s ease;
}

.search-input:focus + .search-icon {
    transform: translateY(-50%) scale(1.1);
}

.filter-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.filter-select {
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: var(--font-primary);
    background: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.filter-select:hover {
    border-color: var(--primary-light);
}

/* Active Filters */
.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-light);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
}

.filter-tag-remove {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    padding: 0;
    transition: transform var(--transition-fast);
}

.filter-tag-remove:hover {
    transform: scale(1.2);
}

/* Results Count */
.results-count {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.975rem;
    font-weight: 500;
    padding: 0.5rem 0;
}

/* ========================================
   Blog Grid
   ======================================== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (max-width: 640px) {
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Blog Card Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.blog-card {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Stagger animation for cards */
.blog-card:nth-child(1) { animation-delay: 0.1s; }
.blog-card:nth-child(2) { animation-delay: 0.15s; }
.blog-card:nth-child(3) { animation-delay: 0.2s; }
.blog-card:nth-child(4) { animation-delay: 0.25s; }
.blog-card:nth-child(5) { animation-delay: 0.3s; }
.blog-card:nth-child(6) { animation-delay: 0.35s; }

/* Initial state before animation */
.blog-card {
    opacity: 0;
}

/* Blog Card */
.blog-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15), 0 4px 8px rgba(0, 0, 0, 0.08);
    border-color: rgba(37, 99, 235, 0.1);
}

.blog-card-image-container {
    position: relative;
    width: 100%;
    padding-top: 60%;
    overflow: hidden;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.blog-card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

/* Image loading state */
.blog-card-image[src=""],
.blog-card-image:not([src]) {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.blog-card:hover .blog-card-image {
    transform: scale(1.08);
}

.blog-card-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.blog-card-content {
    padding: var(--spacing-md) var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.blog-card-category {
    color: var(--primary-color);
    font-weight: 600;
}

.blog-card-divider {
    color: var(--border-color);
}

.blog-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.blog-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

.blog-card-title a:hover {
    color: var(--primary-color);
}

.blog-card-excerpt {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-light);
    margin-top: auto;
}

.blog-card-author {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.blog-card-author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.blog-card-author-name {
    font-weight: 500;
    color: var(--text-primary);
}

.blog-card-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
}

.blog-card-read-more:hover {
    gap: 0.625rem;
    background: rgba(37, 99, 235, 0.05);
    transform: translateX(2px);
}

.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.blog-card-tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.blog-card-tag:hover {
    background: var(--primary-color);
    color: white;
    cursor: pointer;
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) 0;
}

.pagination-btn {
    padding: 0.75rem 1.5rem;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: 0.5rem;
}

.pagination-number {
    min-width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pagination-number:hover {
    background: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.pagination-number.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

/* ========================================
   Sidebar
   ======================================== */
.blog-sidebar {
    position: sticky;
    top: calc(var(--spacing-lg) + 80px);
}

.sidebar-widget {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
}

.sidebar-widget:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.widget-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary-color);
}

/* Recent Posts Widget */
.recent-posts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.recent-post-item {
    display: flex;
    gap: var(--spacing-sm);
}

.recent-post-link {
    display: flex;
    gap: var(--spacing-sm);
    text-decoration: none;
    transition: transform var(--transition-base);
}

.recent-post-link:hover {
    transform: translateX(4px);
}

.recent-post-thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.recent-post-link:hover .recent-post-thumb {
    transform: scale(1.05);
}

.recent-post-info {
    flex: 1;
}

.recent-post-title {
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recent-post-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Categories Widget */
.categories-list {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.category-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(6px);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-color);
}

.category-count {
    font-size: 0.875rem;
    color: var(--text-muted);
    background: var(--bg-primary);
    padding: 0.375rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
}

.category-item:hover .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Tags Cloud Widget */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
}

.tag-item {
    padding: 0.625rem 1.125rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--border-light);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.tag-item:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
}
    transform: translateY(-2px);
}

/* Newsletter Widget */
.newsletter-widget {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.newsletter-widget .widget-title {
    color: white;
}

.newsletter-description {
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.newsletter-input {
    padding: 0.875rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-input:focus {
    outline: none;
    border-color: white;
    background: rgba(255, 255, 255, 0.2);
}

.newsletter-btn {
    padding: 0.875rem 1rem;
    background: white;
    color: var(--primary-color);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.newsletter-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.newsletter-privacy {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 0.5rem;
}

/* CTA Widget */
.cta-widget {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #059669 100%);
    color: white;
    text-align: center;
}

.cta-widget .widget-title {
    color: white;
}

.cta-widget p {
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.cta-widget .btn-primary {
    background: white;
    color: var(--secondary-color);
    border: none;
}

.cta-widget .btn-primary:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

/* ========================================
   No Results
   ======================================== */
.no-results {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.no-results-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.no-results p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* ========================================
   Blog Detail Page
   ======================================== */
.back-to-blog-container {
    padding: var(--spacing-md) 0;
    background: var(--bg-secondary);
}

.back-to-blog {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
}

.back-to-blog:hover {
    color: var(--primary-color);
    gap: 0.75rem;
}

/* Article Layout */
.blog-article {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) 0 var(--spacing-2xl);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    align-items: start;
}

@media (max-width: 992px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        order: 2;
    }
}

.article-main {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* Article Hero */
.article-hero {
    position: relative;
    width: 100%;
    padding-top: 50%;
    background: var(--bg-tertiary);
}

.article-hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Article Header */
.article-header {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
}

.article-meta-top {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.article-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-read-time {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.article-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.author-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.article-date-container {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Social Share Buttons */
.article-share {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.share-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 0.25rem;
}

.share-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    background: white;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.share-btn.facebook:hover {
    background: #1877f2;
    border-color: #1877f2;
}

.share-btn.twitter:hover {
    background: #1da1f2;
    border-color: #1da1f2;
}

.share-btn.linkedin:hover {
    background: #0a66c2;
    border-color: #0a66c2;
}

.share-btn.copy:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
}

/* Article Tags */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-md);
}

.article-tags .tag {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Article Body */
.article-body {
    padding: var(--spacing-xl);
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: var(--spacing-md);
}

.article-body h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.3;
}

.article-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.3;
}

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

.article-body li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.article-body blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--primary-color);
    background: var(--bg-secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    font-size: 1.15rem;
    color: var(--text-secondary);
}

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

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

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

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

.author-bio-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.author-bio-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.author-bio-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Post Navigation */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    border-top: 2px solid var(--border-light);
}

@media (max-width: 768px) {
    .post-navigation {
        grid-template-columns: 1fr;
    }
}

.post-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-base);
}

.post-nav-link:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.post-nav-link:hover * {
    color: white;
}

.post-nav-link.next {
    text-align: right;
}

.post-nav-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
}

.post-nav-title {
    font-weight: 600;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Related Posts */
.related-posts {
    padding: var(--spacing-xl);
    border-top: 2px solid var(--border-light);
}

.related-posts-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.related-post-card {
    background: white;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.related-post-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.related-post-link {
    text-decoration: none;
}

.related-post-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.related-post-content {
    padding: var(--spacing-md);
}

.related-post-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.related-post-title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.related-post-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Comments Section */
.comments-section {
    padding: var(--spacing-xl);
    border-top: 2px solid var(--border-light);
}

.comments-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.comments-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.comment-form {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    resize: vertical;
}

.comments-placeholder {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
}

/* Table of Contents */
.toc-widget {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.table-of-contents {
    max-height: 400px;
    overflow-y: auto;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 0.5rem;
}

.toc-level-1 {
    padding-left: 0;
}

.toc-level-2 {
    padding-left: var(--spacing-md);
    font-size: 0.9rem;
}

.toc-link {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    line-height: 1.4;
}

.toc-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
    transform: translateX(4px);
}

.toc-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    padding: var(--spacing-md);
}

/* Sticky TOC */
.sticky-widget.is-sticky {
    position: fixed;
    top: var(--spacing-lg);
    width: 300px;
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 1000;
}

.scroll-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ========================================
   Utility Classes
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    font-family: var(--font-primary);
}

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

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

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .blog-hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }
    
    .filter-controls {
        grid-template-columns: 1fr;
    }
    
    .article-header,
    .article-body,
    .author-bio,
    .post-navigation,
    .related-posts,
    .comments-section {
        padding: var(--spacing-md);
    }
    
    .article-body {
        font-size: 1rem;
    }
    
    .article-body h2 {
        font-size: 1.5rem;
    }
    
    .article-body h3 {
        font-size: 1.25rem;
    }
    
    .author-bio {
        flex-direction: column;
        text-align: center;
    }
    
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
    
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

/* ========================================
   Loading States
   ======================================== */
.loading {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .header,
    .blog-hero,
    .blog-sidebar,
    .article-sidebar,
    .article-share,
    .post-navigation,
    .related-posts,
    .comments-section,
    .footer,
    .scroll-to-top {
        display: none !important;
    }
    
    .article-main {
        box-shadow: none;
    }
    
    .article-body {
        font-size: 12pt;
        line-height: 1.5;
    }
}

/* ========================================
   Accessibility
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}
/* ========================================
   Enhanced Article Features (2026 Update)
   ======================================== */

/* Article Actions (Print/Save buttons) */
.article-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.article-tools {
    display: flex;
    gap: 0.5rem;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: white;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.tool-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.tool-btn svg {
    flex-shrink: 0;
}

/* Enhanced Share Buttons with SVG icons */
.share-btn svg {
    width: 20px;
    height: 20px;
}

.share-btn.facebook svg:hover,
.share-btn.twitter svg:hover,
.share-btn.linkedin svg:hover,
.share-btn.whatsapp svg:hover {
    fill: white;
}

.share-btn.whatsapp:hover {
    background: #25d366;
    border-color: #25d366;
}

/* Heading Anchors */
.heading-anchor {
    display: inline-block;
    margin-left: 0.5rem;
    opacity: 0;
    transition: opacity var(--transition-base);
    text-decoration: none;
}

h2:hover .heading-anchor,
h3:hover .heading-anchor,
.heading-anchor:focus {
    opacity: 1;
}

/* Enhanced Table of Contents */
.toc-link {
    display: flex;
    align-items: start;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    font-size: 0.9rem;
}

.toc-link:hover {
    background: #eff6ff;
    color: var(--primary-color);
}

.toc-link.active {
    background: #dbeafe;
    color: var(--primary-dark);
    font-weight: 600;
}

.toc-level-2 {
    padding-left: 1rem;
    font-size: 0.85rem;
}

/* Reading Progress Bar Styles */
#readingProgress {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, #9333ea 100%);
    z-index: 50;
    transition: width 0.15s ease-out;
}

/* Article CTA Section */
.article-cta {
    margin: 3rem 0;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Related Services Section */
.related-services {
    margin: 2rem 0;
}

.related-services a {
    text-decoration: none;
    transition: all var(--transition-base);
}

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

/* Enhanced Article Body Styles */
.article-body p strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-body a {
    color: var(--primary-color);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-base);
}

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

.article-body blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1.5rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
    margin: 1.5rem 0;
    background: #eff6ff;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    font-size: 1.125rem;
}

.article-body ul {
    list-style: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.article-body ul li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.article-body ul li::before {
    content: "→";
    color: var(--primary-color);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.article-body ol {
    padding-left: 1.5rem;
    margin: 1.5rem 0;
}

.article-body ol li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
    padding-left: 0.5rem;
}

/* Article Views Badge */
.article-views {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Breadcrumbs Styling */
nav[aria-label="Breadcrumb"] {
    margin-bottom: 1rem;
}

nav[aria-label="Breadcrumb"] a {
    text-decoration: none;
    transition: color var(--transition-base);
}

nav[aria-label="Breadcrumb"] a:hover {
    color: var(--primary-color);
}

/* Responsive Enhancements */
@media (max-width: 768px) {
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .article-actions {
        width: 100%;
    }
    
    .article-tools {
        width: 100%;
        justify-content: space-between;
    }
    
    .tool-btn {
        flex: 1;
        justify-content: center;
    }
    
    .article-share {
        width: 100%;
        justify-content: center;
    }
    
    .share-label {
        display: none;
    }
}

@media (max-width: 640px) {
    .share-btn {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .tool-btn span {
        display: none;
    }
    
    .tool-btn {
        padding: 0.5rem;
        min-width: 40px;
    }
}

/* Print Styles Enhancement */
@media print {
    .article-actions,
    .article-cta,
    .related-services,
    #readingProgress,
    .back-to-blog-container,
    nav[aria-label="Breadcrumb"] {
        display: none !important;
    }
    
    .article-title {
        font-size: 24pt;
        margin-bottom: 12pt;
    }
    
    .article-body {
        orphans: 3;
        widows: 3;
    }
    
    .article-body h2,
    .article-body h3 {
        page-break-after: avoid;
    }
    
    .heading-anchor {
        display: none;
    }
}