/**
 * Blog Styles for WordPress Airtable Blog System
 *
 * Save as: wp-content/themes/your-theme/css/blog-styles.css
 *
 * Include in functions.php:
 * wp_enqueue_style('blog-styles', get_template_directory_uri() . '/css/blog-styles.css');
 */

/* ============================================================================
   Variables & Base Styles
   ============================================================================ */

:root {
    --color-primary: #0066cc;
    --color-primary-dark: #0052a3;
    --color-primary-light: #e6f2ff;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-border: #e0e0e0;
    --color-background: #f9f9f9;
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-danger: #e74c3c;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;

    --line-height-tight: 1.2;
    --line-height-base: 1.6;
    --line-height-relaxed: 1.8;

    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

    --max-width: 1200px;
    --max-width-narrow: 800px;
}

* {
    box-sizing: border-box;
}

/* ============================================================================
   Blog Container
   ============================================================================ */

.blog-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
    font-family: var(--font-family-base);
    color: var(--color-text);
    line-height: var(--line-height-base);
}

@media (max-width: 768px) {
    .blog-container {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* ============================================================================
   Blog Header
   ============================================================================ */

.blog-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.blog-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-md) 0;
    color: var(--color-text);
    line-height: var(--line-height-tight);
}

.blog-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin: 0;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .blog-header h1 {
        font-size: var(--font-size-2xl);
    }

    .blog-subtitle {
        font-size: var(--font-size-base);
    }
}

/* ============================================================================
   Blog Filters
   ============================================================================ */

.blog-filters {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: white;
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

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

@media (max-width: 768px) {
    .blog-filters {
        gap: var(--spacing-sm);
    }

    .filter-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

/* ============================================================================
   Blog Grid
   ============================================================================ */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

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

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* ============================================================================
   Blog Card
   ============================================================================ */

.blog-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-card__image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: var(--color-background);
}

.blog-card__image a {
    display: block;
    width: 100%;
    height: 100%;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.05);
}

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

.blog-card__category {
    display: inline-block;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-decoration: none;
    transition: all var(--transition-base);
    width: fit-content;
}

.blog-card__category a {
    color: inherit;
    text-decoration: none;
}

.blog-card__category:hover {
    background-color: var(--color-primary);
    color: white;
}

.blog-card__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-md) 0;
    line-height: var(--line-height-tight);
}

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

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

.blog-card__excerpt {
    color: var(--color-text-light);
    margin: 0 0 var(--spacing-md) 0;
    flex: 1;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
}

.blog-card__meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: var(--spacing-md) 0;
    align-items: center;
}

.blog-card__author,
.blog-card__date {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.blog-card__meta .icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.6;
}

.blog-card__link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    margin-top: auto;
}

.blog-card__link:hover {
    gap: var(--spacing-sm);
    color: var(--color-primary-dark);
}

.blog-card__link .icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-base);
}

.blog-card:hover .blog-card__link .icon {
    transform: translateX(4px);
}

/* ============================================================================
   Blog Pagination
   ============================================================================ */

.blog-pagination {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.blog-pagination .page-numbers {
    list-style: none;
    display: flex;
    gap: var(--spacing-sm);
    padding: 0;
    margin: 0;
}

.blog-pagination .page-numbers li {
    display: inline-block;
}

.blog-pagination .page-numbers a,
.blog-pagination .page-numbers span.page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: all var(--transition-base);
    font-weight: 500;
}

.blog-pagination .page-numbers a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.blog-pagination .page-numbers.current {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* ============================================================================
   Blog Single Post
   ============================================================================ */

.blog-post {
    max-width: var(--max-width-narrow);
    margin: var(--spacing-2xl) auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .blog-post {
        margin: var(--spacing-xl) auto;
        padding: 0 var(--spacing-md);
    }
}

.blog-post__breadcrumb {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.blog-post__breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.blog-post__breadcrumb a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.blog-post__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin: var(--spacing-lg) 0 var(--spacing-xl) 0;
    line-height: var(--line-height-tight);
    color: var(--color-text);
}

@media (max-width: 768px) {
    .blog-post__title {
        font-size: var(--font-size-2xl);
    }
}

.blog-post__meta {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
}

.blog-post__author,
.blog-post__date,
.blog-post__reading-time {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    color: var(--color-text-light);
}

.blog-post__meta .icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.6;
}

.blog-post__tags {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.tag {
    display: inline-block;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

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

.blog-post__featured-image {
    margin: var(--spacing-2xl) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.blog-post__content {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
    margin: var(--spacing-2xl) 0;
}

.blog-post__content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: var(--spacing-2xl) 0 var(--spacing-lg) 0;
    line-height: var(--line-height-tight);
}

.blog-post__content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
}

.blog-post__content p {
    margin-bottom: var(--spacing-lg);
}

.blog-post__content ul,
.blog-post__content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-lg);
}

.blog-post__content li {
    margin-bottom: var(--spacing-md);
}

.blog-post__content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-lg);
    margin-left: 0;
    margin-right: 0;
    padding: var(--spacing-lg) 0 var(--spacing-lg) var(--spacing-lg);
    background-color: var(--color-background);
    font-style: italic;
    color: var(--color-text-light);
}

.blog-post__content code {
    background-color: var(--color-background);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--color-danger);
}

.blog-post__content pre {
    background-color: #1e1e1e;
    color: #d4d4d4;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.blog-post__content pre code {
    background: none;
    padding: 0;
    color: #d4d4d4;
}

.blog-post__content img {
    max-width: 100%;
    height: auto;
    margin: var(--spacing-xl) 0;
    border-radius: var(--radius-md);
}

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

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

/* Author Box */
.blog-post__author-box {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    margin: var(--spacing-2xl) 0;
}

.author-box__image {
    flex-shrink: 0;
}

.author-box__image img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: block;
}

.author-box__content {
    flex: 1;
}

.author-box__name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 0 var(--spacing-sm) 0;
}

.author-box__bio {
    margin: 0;
    color: var(--color-text-light);
    font-size: var(--font-size-base);
}

/* Related Articles */
.blog-post__related {
    margin: var(--spacing-2xl) 0;
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.blog-post__related h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-xl) 0;
}

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

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

.related-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.related-card__image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background-color: var(--color-background);
}

.related-card__image a {
    display: block;
    width: 100%;
    height: 100%;
}

.related-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.related-card:hover .related-card__image img {
    transform: scale(1.05);
}

.related-card__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin: var(--spacing-md);
}

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

.related-card__title a:hover {
    color: var(--color-primary);
}

.related-card__date {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0 var(--spacing-md) var(--spacing-md);
}

/* CTA Section */
.blog-post__cta {
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, rgba(0, 102, 204, 0.05) 100%);
    border-radius: var(--radius-lg);
    margin: var(--spacing-2xl) 0;
}

.blog-post__cta h3 {
    font-size: var(--font-size-2xl);
    margin: 0 0 var(--spacing-md) 0;
}

.blog-post__cta p {
    color: var(--color-text-light);
    margin: 0 0 var(--spacing-lg) 0;
}

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
}

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

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

/* ============================================================================
   Accessibility
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-text: #e0e0e0;
        --color-text-light: #a0a0a0;
        --color-background: #1a1a1a;
        --color-border: #333333;
    }

    .blog-card {
        background: #1f1f1f;
    }

    .blog-post__featured-image {
        background-color: var(--color-background);
    }
}

/* ============================================================================
   Print Styles
   ============================================================================ */

@media print {
    .blog-filters,
    .blog-pagination,
    .blog-post__cta,
    .related-grid {
        display: none;
    }

    .blog-post {
        max-width: none;
    }
}