/*--------------------------------------------------------------
# Single Post Layout and Styling - COMPLETE FILE
--------------------------------------------------------------*/

/* CSS Variables */
:root {
    --primary-blue: #1e40af;
    --secondary-orange: #f59e0b;
    --success-green: #10b981;
    --danger-red: #dc3545;
    --warning-yellow: #fbbf24;
    --white: #ffffff;
    --light-gray: #f9fafb;
    --medium-gray: #6b7280;
    --dark-gray: #1f2937;
    --border-color: #e5e7eb;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-light: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --border-radius-small: 4px;
}

/*--------------------------------------------------------------
# Base Reset and Typography
--------------------------------------------------------------*/
* {
    box-sizing: border-box;
}

/*--------------------------------------------------------------
# Container and Section Spacing
--------------------------------------------------------------*/
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/*--------------------------------------------------------------
# Breadcrumbs
--------------------------------------------------------------*/
.breadcrumbs {
    background-color: var(--light-gray);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.breadcrumbs-nav {
    color: var(--medium-gray);
    line-height: 1.5;
}

.breadcrumbs-nav a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumbs-nav a:hover {
    color: var(--secondary-orange);
}

.breadcrumbs-nav span {
    color: var(--dark-gray);
    font-weight: 500;
}

/*--------------------------------------------------------------
# Single Post Layout
--------------------------------------------------------------*/
.single-post-layout {
    padding: 2rem 0 4rem;
    background-color: var(--white);
    min-height: 70vh;
}

.single-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 3rem;
    align-items: start;
}

.article-main {
    min-width: 0;
    background-color: var(--white);
}

.article-sidebar-container {
    position: sticky;
    top: 2rem;
    height: fit-content;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--medium-gray) var(--light-gray);
}

/*--------------------------------------------------------------
# Article Content
--------------------------------------------------------------*/
.single-article {
    background: var(--white);
}

.article-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.post-category {
    display: inline-block;
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    transition: var(--transition);
    text-transform: capitalize;
}

.post-category:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--white);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 1rem 0;
    color: var(--dark-gray);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meta-icon {
    font-size: 1rem;
}

.article-featured-image {
    margin: 2rem 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.image-caption {
    background: var(--light-gray);
    padding: 1rem;
    font-size: 0.9rem;
    color: var(--medium-gray);
    font-style: italic;
    text-align: center;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--dark-gray);
    margin: 2rem 0;
}

.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    margin: 2rem 0 1rem;
    color: var(--dark-gray);
    font-weight: 700;
}

.article-content h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 0.5rem;
}

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

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

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content blockquote {
    border-left: 4px solid var(--primary-blue);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1.1rem;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 1rem 0;
}

.article-content a {
    color: var(--primary-blue);
    text-decoration: underline;
}

.article-content a:hover {
    color: var(--secondary-orange);
}

/*--------------------------------------------------------------
# Page Links (Multi-page posts)
--------------------------------------------------------------*/
.page-links {
    clear: both;
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 600;
}

.page-links a {
    display: inline-block;
    margin: 0 0.25rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition);
}

.page-links a:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.page-links .current {
    display: inline-block;
    margin: 0 0.25rem;
    padding: 0.5rem 1rem;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--border-radius-small);
}

/*--------------------------------------------------------------
# Article Footer
--------------------------------------------------------------*/
.article-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.article-tags {
    margin-bottom: 2rem;
}

.tags-label {
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    display: block;
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-link {
    background: var(--light-gray);
    color: var(--medium-gray);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-small);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.tag-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
}

.article-share {
    margin: 2rem 0;
}

.share-label {
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 1rem;
    display: block;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.share-btn.facebook {
    background: #1877f2;
    color: var(--white);
}

.share-btn.twitter {
    background: #1da1f2;
    color: var(--white);
}

.share-btn.linkedin {
    background: #0a66c2;
    color: var(--white);
}

.share-btn.copy {
    background: var(--medium-gray);
    color: var(--white);
}

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

.share-btn.copy:hover {
    background: var(--success-green);
}

/*--------------------------------------------------------------
# Author Bio
--------------------------------------------------------------*/
.author-bio {
    display: flex;
    gap: 1rem;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    margin: 2rem 0;
}

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

.author-info {
    flex: 1;
}

.author-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--dark-gray);
}

.author-description {
    margin: 0 0 1rem;
    color: var(--medium-gray);
    line-height: 1.6;
}

.author-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

/*--------------------------------------------------------------
# Post Navigation
--------------------------------------------------------------*/
.post-navigation {
    margin: 3rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.nav-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.nav-previous,
.nav-next {
    display: block;
}

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

.nav-link {
    display: block;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    color: var(--dark-gray);
}

.nav-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    text-decoration: none;
}

.nav-subtitle {
    display: block;
    font-size: 0.85rem;
    color: var(--medium-gray);
    margin-bottom: 0.5rem;
}

.nav-link:hover .nav-subtitle {
    color: rgba(255,255,255,0.8);
}

.nav-title {
    display: block;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.3;
}

/*--------------------------------------------------------------
# Comments Section
--------------------------------------------------------------*/
.comments-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

/*--------------------------------------------------------------
# Sidebar Styling
--------------------------------------------------------------*/
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-widget {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.sidebar-widget:hover {
    box-shadow: var(--shadow);
}

.widget-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-gray);
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 0.5rem;
}

/*--------------------------------------------------------------
# Newsletter Widget
--------------------------------------------------------------*/
.newsletter-widget {
    background: linear-gradient(135deg, var(--primary-blue), #5a9bff);
    color: var(--white);
    border: none;
}

.newsletter-widget .widget-title {
    color: var(--white);
    border-bottom-color: rgba(255,255,255,0.3);
}

.newsletter-description {
    margin-bottom: 1rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.5;
}

.newsletter-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.newsletter-input {
    padding: 0.75rem;
    border: none;
    border-radius: var(--border-radius-small);
    font-size: 0.9rem;
    outline: none;
    width: 100%;
}

.newsletter-input:focus {
    box-shadow: 0 0 0 2px rgba(255,255,255,0.5);
}

.newsletter-submit {
    background: var(--secondary-orange);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-small);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.newsletter-submit:hover {
    background: #e67c00;
    transform: translateY(-1px);
}

.newsletter-submit:disabled {
    background: var(--medium-gray);
    cursor: not-allowed;
    transform: none;
}

.newsletter-privacy {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.4;
}

/*--------------------------------------------------------------
# Quick Actions Widget
--------------------------------------------------------------*/
.quick-actions-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--light-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-size: 0.9rem;
    width: 100%;
}

.quick-action-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
    transform: translateX(4px);
}

.action-icon {
    font-size: 1.1rem;
    min-width: 20px;
}

.action-text {
    font-weight: 500;
    flex: 1;
}

/*--------------------------------------------------------------
# Reading Progress Widget
--------------------------------------------------------------*/
.progress-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-orange));
    width: 0%;
    transition: width 0.3s ease;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--medium-gray);
}

.progress-percentage {
    font-weight: 600;
    color: var(--primary-blue);
}

/*--------------------------------------------------------------
# Related Articles Widget
--------------------------------------------------------------*/
.related-posts-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.related-post {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.related-post:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.related-post-content {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.related-post-image {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-small);
    overflow: hidden;
}

.related-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-post-text {
    flex: 1;
    min-width: 0;
}

.related-post-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.related-post-title a {
    color: var(--dark-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.related-post-meta {
    font-size: 0.8rem;
    color: var(--medium-gray);
    display: flex;
    gap: 1rem;
}

/*--------------------------------------------------------------
# Popular Categories Widget
--------------------------------------------------------------*/
.categories-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.category-item {
    border-radius: var(--border-radius-small);
    overflow: hidden;
}

.category-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--light-gray);
    text-decoration: none;
    color: var(--dark-gray);
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.category-link:hover {
    background: var(--white);
    box-shadow: var(--shadow-light);
    transform: translateX(4px);
    text-decoration: none;
    color: var(--dark-gray);
}

.category-icon {
    font-size: 1.2rem;
    min-width: 24px;
}

.category-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.category-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.category-count {
    font-size: 0.8rem;
    color: var(--medium-gray);
}

/*--------------------------------------------------------------
# Latest Articles Widget
--------------------------------------------------------------*/
.latest-posts-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.latest-post {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.latest-post:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.latest-post-title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.latest-post-title a {
    color: var(--dark-gray);
    text-decoration: none;
    transition: var(--transition);
}

.latest-post-title a:hover {
    color: var(--primary-blue);
}

.latest-post-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--medium-gray);
}

/*--------------------------------------------------------------
# Newsletter CTA Bottom
--------------------------------------------------------------*/
.newsletter-cta-bottom {
    background: linear-gradient(135deg, var(--warning-yellow), #ffeb3b);
    border: none;
    text-align: center;
}

.cta-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.cta-icon {
    font-size: 2rem;
}

.cta-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    color: var(--dark-gray);
}

.cta-text {
    font-size: 0.9rem;
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.4;
}

.cta-button {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.cta-button:hover {
    background: var(--secondary-orange);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/*--------------------------------------------------------------
# Table of Contents
--------------------------------------------------------------*/
.table-of-contents {
    background: var(--light-gray);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-light);
}

.toc-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--dark-gray);
    display: inline-block;
}

.toc-toggle {
    float: right;
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-small);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.toc-toggle:hover {
    background: var(--secondary-orange);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.toc-item {
    margin-bottom: 0.5rem;
}

.toc-item.toc-h3 {
    padding-left: 1rem;
}

.toc-item.toc-h4 {
    padding-left: 2rem;
}

.toc-link {
    display: block;
    color: var(--dark-gray);
    text-decoration: none;
    padding: 0.25rem 0;
    font-size: 0.9rem;
    line-height: 1.4;
    transition: var(--transition);
    border-left: 3px solid transparent;
    padding-left: 0.75rem;
}

.toc-link:hover {
    color: var(--primary-blue);
    border-left-color: var(--primary-blue);
    background: rgba(66, 133, 244, 0.1);
    text-decoration: none;
}

.toc-link:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

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

.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: var(--light-gray);
    border-radius: var(--border-radius-small);
    box-shadow: var(--shadow);
    clip: auto !important;
    color: var(--dark-gray);
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

/*--------------------------------------------------------------
# Dark Mode Support
--------------------------------------------------------------*/
.dark-mode {
    --white: #1a1a1a;
    --light-gray: #2d2d2d;
    --medium-gray: #b0b0b0;
    --dark-gray: #f0f0f0;
    --border-color: #404040;
}

.dark-mode .sidebar-widget {
    background: var(--light-gray);
    border-color: var(--border-color);
}

.dark-mode .quick-action-btn {
    background: var(--dark-gray);
    color: var(--white);
}

.dark-mode .category-link {
    background: var(--dark-gray);
    color: var(--light-gray);
}

.dark-mode .article-content {
    color: var(--dark-gray);
}

.dark-mode .newsletter-widget {
    background: linear-gradient(135deg, #2c3e50, #34495e);
}

/*--------------------------------------------------------------
# Font Size Adjustments
--------------------------------------------------------------*/
.font-large {
    font-size: 1.2em;
}

.font-large .article-content {
    font-size: 1.3rem;
}

.font-large .article-title {
    font-size: 3rem;
}

/*--------------------------------------------------------------
# Custom Scrollbar
--------------------------------------------------------------*/
.article-sidebar-container::-webkit-scrollbar {
    width: 6px;
}

.article-sidebar-container::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: 3px;
}

.article-sidebar-container::-webkit-scrollbar-thumb {
    background: var(--medium-gray);
    border-radius: 3px;
}

.article-sidebar-container::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue);
}

/*--------------------------------------------------------------
# Print Styles
--------------------------------------------------------------*/
@media print {
    .article-sidebar-container,
    .breadcrumbs,
    .article-share,
    .post-navigation,
    .comments-section,
    .table-of-contents {
        display: none !important;
    }
    
    .single-content-wrapper {
        grid-template-columns: 1fr !important;
        gap: 0;
    }
    
    .article-content {
        font-size: 12pt !important;
        line-height: 1.6 !important;
        color: #000000 !important;
    }
    
    .article-title {
        font-size: 18pt !important;
        margin-bottom: 1rem !important;
        color: #000000 !important;
    }
    
    .article-header {
        border-bottom: 1px solid #000000 !important;
        margin-bottom: 1rem !important;
    }
    
    .post-category {
        background: transparent !important;
        color: #000000 !important;
        border: 1px solid #000000 !important;
    }
}

/*--------------------------------------------------------------
# Responsive Design
--------------------------------------------------------------*/
@media (max-width: 1024px) {
    .single-content-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .article-sidebar-container {
        position: static;
        order: -1;
        max-height: none;
        overflow-y: visible;
    }
    
    .article-sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .section-container {
        padding: 0 0.75rem;
    }
    
    .single-post-layout {
        padding: 1rem 0 2rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .share-buttons {
        flex-direction: column;
    }
    
    .share-btn {
        justify-content: center;
        min-height: 44px;
    }
    
    .nav-links {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .nav-next {
        text-align: left;
    }
    
    .article-sidebar {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
    
    .author-bio {
        flex-direction: column;
        text-align: center;
    }
    
    .table-of-contents {
        margin: 1rem 0;
        padding: 1rem;
    }
    
    .toc-toggle {
        float: none;
        display: block;
        margin-top: 0.5rem;
        text-align: center;
    }
    
    .toc-title {
        display: block;
        margin-bottom: 0.5rem;
    }
    
    .toc-item.toc-h3 {
        padding-left: 0.5rem;
    }
    
    .toc-item.toc-h4 {
        padding-left: 1rem;
    }
    
    /* Touch-friendly targets */
    .quick-action-btn,
    .newsletter-submit,
    .cta-button {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Improved tap targets */
    .toc-link,
    .category-link,
    .related-post-title a,
    .latest-post-title a {
        padding: 0.75rem;
        margin: 0.25rem 0;
    }
    
    /* Better spacing for mobile */
    .sidebar-widget {
        margin-bottom: 1.5rem;
    }
    
    /* Optimized newsletter form for mobile */
    .newsletter-input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-content {
        font-size: 1rem;
    }
    
    .sidebar-widget {
        padding: 1rem;
    }
    
    .related-post-content {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .related-post-image {
        width: 100%;
        height: 120px;
    }
    
    .author-bio {
        padding: 1rem;
    }
}