/**
 * Modern Single Post Template Styles
 * Mobile-first, minimalistic design matching homepage
 * Purple/blue gradient theme with clean typography
 */

/* ==========================================================================
   CSS Variables (Design System matching homepage)
   ========================================================================== */

:root {
    /* Typography - System fonts like homepage */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    /* Colors - Match homepage purple/blue gradient */
    --color-primary: #6366f1;
    --color-secondary: #8b5cf6;
    --color-accent: #3b82f6;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-gray: #f9fafb;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 5rem;

    /* Container widths */
    --container-max: 1200px;
    --content-max: 800px;
    --sidebar-width: 320px;
}

/* ==========================================================================
   Base Container Styles
   ========================================================================== */

.single-post-modern {
    background: var(--color-bg);
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* ==========================================================================
   Featured Image Hero (Top of Page)
   ========================================================================== */

.post-hero-image {
    width: 100%;
    margin-bottom: var(--space-xl);
    background: var(--color-bg-gray);
}

.post-hero-image .container-wide {
    position: relative;
    overflow: hidden;
}

.hero-featured-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    object-position: center;
    display: block;
}

@media (min-width: 768px) {
    .hero-featured-img {
        height: 400px;
        border-radius: 0 0 16px 16px;
    }

    .post-hero-image {
        margin-bottom: var(--space-2xl);
    }
}

@media (min-width: 1024px) {
    .hero-featured-img {
        height: 500px;
    }
}

/* ==========================================================================
   Post Header (Below Image)
   ========================================================================== */

.post-header {
    margin-bottom: var(--space-2xl);
}

@media (min-width: 1024px) {
    .post-header {
        margin-bottom: var(--space-lg);
    }
}

.header-content {
    max-width: var(--content-max);
    margin: 0 auto;
}

/* Category Badge with Gradient */
.category-badge-gradient {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    text-decoration: none;
    margin-bottom: var(--space-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-badge-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Post Title */
.post-title-modern {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin: 0 0 var(--space-lg) 0;
}

@media (min-width: 768px) {
    .post-title-modern {
        font-size: 2.25rem;
    }
}

@media (min-width: 1024px) {
    .post-title-modern {
        font-size: 2.75rem;
    }
}

/* Post Meta */
.post-meta-modern {
    margin-top: var(--space-lg);
}

.author-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.author-avatar-modern {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
}

.author-info-modern {
    flex: 1;
}

.author-name-modern {
    display: block;
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.author-name-modern strong {
    font-weight: 600;
}

.meta-details-modern {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-light);
    flex-wrap: wrap;
}

.meta-details-modern .separator {
    color: var(--color-text-lighter);
}

/* Hero section post meta - horizontal layout */
.single-hero .post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

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

.single-hero .author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
}

.single-hero .author-details {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.single-hero .author-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
}

.single-hero .post-date {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
}

.single-hero .reading-stats {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.85);
}

.single-hero .reading-time,
.single-hero .word-count {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.single-hero .reading-time svg,
.single-hero .word-count svg {
    opacity: 0.7;
}

@media (max-width: 640px) {
    .author-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .meta-details-modern {
        font-size: 0.8rem;
    }

    /* Stack hero meta vertically on small screens */
    .single-hero .post-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .single-hero .reading-stats {
        width: 100%;
        justify-content: flex-start;
    }
}

/* ==========================================================================
   Content Grid (Main + Sidebar)
   ========================================================================== */

.single-content-modern {
    padding: var(--space-xl) 0;
    background: var(--color-bg);
}

.content-grid-modern {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

@media (min-width: 1024px) {
    .content-grid-modern {
        grid-template-columns: 1fr var(--sidebar-width);
        gap: var(--space-3xl);
    }
}

/* ==========================================================================
   Main Content Column
   ========================================================================== */

.main-column-modern {
    max-width: 100%;
}

/* Article Content */
.article-content-modern {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--color-text);
}

.article-content-modern > * {
    margin-bottom: var(--space-lg);
}

.article-content-modern > *:last-child {
    margin-bottom: 0;
}

/* Headings */
.article-content-modern h1,
.article-content-modern h2,
.article-content-modern h3,
.article-content-modern h4,
.article-content-modern h5,
.article-content-modern h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin: var(--space-2xl) 0 var(--space-md) 0;
}

.article-content-modern h1:first-child,
.article-content-modern h2:first-child,
.article-content-modern h3:first-child {
    margin-top: 0;
}

.article-content-modern h2 {
    font-size: 1.75rem;
}

.article-content-modern h3 {
    font-size: 1.5rem;
}

.article-content-modern h4 {
    font-size: 1.25rem;
}

/* Links */
.article-content-modern a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(99, 102, 241, 0.3);
    transition: border-color 0.2s ease, color 0.2s ease;
}

.article-content-modern a:hover {
    color: var(--color-secondary);
    border-bottom-color: var(--color-secondary);
}

/* Lists */
.article-content-modern ul,
.article-content-modern ol {
    padding-left: 1.5rem;
    margin-bottom: var(--space-lg);
}

.article-content-modern li {
    margin-bottom: var(--space-sm);
}

.article-content-modern ul li::marker {
    color: var(--color-primary);
}

.article-content-modern ol li::marker {
    color: var(--color-primary);
    font-weight: 600;
}

/* Blockquotes */
.article-content-modern blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-lg) var(--space-xl);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    border-left: 4px solid var(--color-primary);
    border-radius: 8px;
    font-style: italic;
    color: var(--color-text);
}

/* Images */
.article-content-modern img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: var(--space-xl) 0;
}

.article-content-modern .wp-block-image {
    margin: var(--space-xl) 0;
}

/* Hide images that are duplicates of the featured image */
.article-content-modern .wp-block-image:first-child,
.article-content-modern > .wp-block-image:first-of-type,
.article-content-modern > p:first-child .wp-block-image,
.article-content-modern > figure:first-child,
.article-content-modern > .wp-block-image:nth-child(1),
.article-content-modern > .wp-block-image:nth-child(2) {
    display: none !important;
}

/* Also hide any image that matches the hero image src */
.single-post-modern .article-content-modern img[src*="Data-Center.jpg"],
.single-post-modern .article-content-modern img[src*="vidrala"] {
    display: none !important;
}

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

.article-content-modern pre {
    background: var(--color-bg-gray);
    padding: var(--space-lg);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--space-xl) 0;
}

.article-content-modern pre code {
    background: none;
    padding: 0;
}

/* Tables */
.article-content-modern table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-xl) 0;
}

.article-content-modern th,
.article-content-modern td {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    text-align: left;
}

.article-content-modern th {
    background: var(--color-bg-gray);
    font-weight: 600;
}

/* Hide legacy post-index TOC completely */
.post-index,
.article-content-modern .post-index,
div.post-index,
.content-text .post-index {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    overflow: hidden !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Mobile Optimization */
@media (max-width: 767px) {
    .article-content-modern {
        font-size: 1rem;
        line-height: 1.7;
    }

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

    .article-content-modern h3 {
        font-size: 1.25rem;
    }

    .article-content-modern h4 {
        font-size: 1.125rem;
    }

    /* Hide TOC widget on mobile */
    .toc-widget-modern {
        display: none !important;
    }
}

/* ==========================================================================
   Tags Section
   ========================================================================== */

.post-tags-modern {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.post-tags-modern svg {
    margin-top: 4px;
    color: var(--color-text-light);
}

.tags-list-modern {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tags-list-modern a {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    background: var(--color-bg-gray);
    color: var(--color-text);
    border-radius: 50px;
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid var(--color-border);
}

.tags-list-modern a:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

/* ==========================================================================
   Share Section (Bottom)
   ========================================================================== */

.share-section-modern {
    margin-top: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--color-bg-gray);
    border-radius: 12px;
    border: 1px solid var(--color-border-light);
}

.share-title-modern {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--space-md) 0;
}

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

.share-btn-modern {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.25rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
}

.share-btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

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

.share-btn-modern.linkedin-share:hover {
    background: #0077b5;
    color: white;
    border-color: #0077b5;
}

.share-btn-modern.copy-share:hover {
    background: #10b981;
    color: white;
    border-color: #10b981;
}

.share-btn-modern svg {
    width: 18px;
    height: 18px;
}

.share-btn-modern .copied-text {
    display: none;
}

.share-btn-modern.copied .copy-text {
    display: none;
}

.share-btn-modern.copied .copied-text {
    display: inline;
}

@media (max-width: 640px) {
    .share-buttons-modern {
        flex-direction: column;
    }

    .share-btn-modern {
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================================================
   Author Box
   ========================================================================== */

.author-box-modern {
    margin-top: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--color-bg-gray);
    border-radius: 12px;
    display: flex;
    gap: var(--space-lg);
    border: 1px solid var(--color-border-light);
}

.author-avatar-large-modern {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    flex-shrink: 0;
}

.author-content-modern {
    flex: 1;
}

.author-title-modern {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin: 0 0 0.5rem 0;
}

.author-name-large-modern {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--space-sm) 0;
}

.author-bio-modern {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-light);
    margin: 0 0 var(--space-md) 0;
}

.author-link-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.author-link-modern:hover {
    color: var(--color-secondary);
}

@media (max-width: 640px) {
    .author-box-modern {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .author-avatar-large-modern {
        width: 64px;
        height: 64px;
    }
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.sidebar-modern {
    position: relative;
}

@media (min-width: 1024px) {
    .sidebar-modern {
        position: sticky;
        top: var(--space-xl);
        align-self: flex-start;
    }
}

.widget-modern {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.widget-title-modern {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
    margin: 0 0 var(--space-md) 0;
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--color-primary), var(--color-secondary)) 1;
    border-image-slice: 1;
}

/* Table of Contents Widget */
.toc-widget-modern {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    border-color: rgba(99, 102, 241, 0.2);
}

.toc-nav-modern {
    font-size: 0.9rem;
}

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

.toc-list-modern li {
    margin-bottom: var(--space-xs);
}

.toc-link-modern {
    display: block;
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-text);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.2s ease;
}

.toc-link-modern:hover,
.toc-link-modern.active {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.05);
    border-left-color: var(--color-primary);
}

.toc-item-h3 .toc-link-modern {
    padding-left: var(--space-lg);
    font-size: 0.85rem;
}

.toc-item-h4 .toc-link-modern {
    padding-left: var(--space-xl);
    font-size: 0.8rem;
}

/* Search Widget */
.search-widget-modern input[type="search"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 0.9375rem;
    transition: border-color 0.2s ease;
}

.search-widget-modern input[type="search"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Recent Posts Widget */
.recent-posts-list-modern {
    list-style: none;
    padding: 0;
    margin: 0;
}

.recent-posts-list-modern li {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.recent-posts-list-modern li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.recent-posts-list-modern a {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    margin-bottom: 0.25rem;
    transition: color 0.2s ease;
}

.recent-posts-list-modern a:hover {
    color: var(--color-primary);
}

.recent-posts-list-modern time {
    display: block;
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

/* Categories Widget */
.categories-list-modern {
    list-style: none;
    padding: 0;
    margin: 0;
}

.categories-list-modern li {
    margin-bottom: var(--space-xs);
}

.categories-list-modern a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.categories-list-modern a:hover {
    background: var(--color-bg-gray);
    color: var(--color-primary);
}

/* ==========================================================================
   Related Posts Section
   ========================================================================== */

.related-posts-modern {
    margin-top: var(--space-3xl);
    padding: var(--space-3xl) 0;
    background: var(--color-bg-gray);
    border-top: 1px solid var(--color-border);
}

.section-title-modern {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--space-xl) 0;
    text-align: center;
}

.related-grid-modern {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

@media (min-width: 640px) {
    .related-grid-modern {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .related-grid-modern {
        grid-template-columns: repeat(3, 1fr);
    }
}

.related-card-modern {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

.related-card-modern:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.related-thumb-modern {
    display: block;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.related-thumb-modern img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.related-content-modern {
    padding: var(--space-lg);
}

.related-title-modern {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 0 0 var(--space-sm) 0;
}

.related-title-modern a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.related-date-modern {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

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

.post-pagination-modern {
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    background: var(--color-bg-gray);
    border-radius: 8px;
    text-align: center;
}

.pagination-title {
    font-weight: 600;
    color: var(--color-text);
    margin-right: var(--space-sm);
}

.page-number {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0 var(--space-xs);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s ease;
}

.page-number:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-color: transparent;
}

/* ==========================================================================
   Mobile Optimizations
   ========================================================================== */

@media (max-width: 767px) {
    :root {
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
    }

    .post-header {
        margin-bottom: var(--space-xl);
    }

    .single-content-modern {
        padding: var(--space-lg) 0;
    }

    .widget-modern {
        padding: var(--space-md);
    }
}