/* News Detail Page - Modern, Fast & Responsive CSS - Light Mode Only */

/* CSS Variables for consistent light theming */
:root {
    /* Primary Colors */
    --primary-color: #1e3c72;
    --primary-light: #3b82f6;
    --primary-dark: #1e40af;
    --secondary-color: #2a5298;
    --accent-color: #ffc107;
    
    /* Text Colors - Light Mode Only */
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --text-inverse: #ffffff;
    
    /* Background Colors - Light Mode Only */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-accent: #eff6ff;
    --bg-hover: #e2e8f0;
    
    /* Border & Shadow Colors */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --border-dark: #d1d5db;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Layout Variables */
    --border-radius: 12px;
    --border-radius-sm: 6px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Inter', var(--font-family);
    --container-width: 1200px;
    --sidebar-width: 320px;
    --gap: 30px;
    
    /* Color Scheme Enforcement */
    color-scheme: light only;
}

/* Base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    overflow-x: hidden;
    color-scheme: light only;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-inverse);
    padding: 8px 16px;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    z-index: 10000;
    font-weight: 500;
    transition: var(--transition);
}

.skip-link:focus {
    top: 6px;
}

/* Reading progress bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    z-index: 1000;
    transition: width 0.1s ease;
}

/* Breadcrumb Navigation */
.breadcrumb {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    font-size: 14px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-item:not(:last-child)::after {
    content: '›';
    color: var(--text-muted);
    font-weight: bold;
    margin: 0 4px;
}

.breadcrumb-link {
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.breadcrumb-link:hover {
    background: var(--bg-accent);
    color: var(--primary-dark);
}

.breadcrumb-item.active {
    color: var(--text-muted);
    font-weight: 500;
}

/* Main Layout */
.main-content {
    padding: var(--gap) 0;
    background: var(--bg-secondary);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--gap);
    align-items: start;
}

/* Article Styles */
.article-main {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    overflow: hidden;
    position: relative;
}

.article-header {
    padding: var(--gap);
    border-bottom: 1px solid var(--border-light);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.article-category {
    margin-bottom: 16px;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    background: var(--category-color, var(--primary-color));
    color: var(--text-inverse);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: var(--transition);
}

.category-badge:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.article-title {
    font-family: var(--font-family-heading);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px 0;
    border-top: 1px solid var(--border-light);
}

.meta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.meta-item svg {
    flex-shrink: 0;
    opacity: 0.8;
}

.article-actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.action-btn.bookmarked {
    background: var(--accent-color);
    color: var(--text-primary);
    border-color: var(--accent-color);
}

/* Article Image */
.article-image {
    position: relative;
    margin: 0;
}

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

.image-caption {
    padding: 16px var(--gap);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 14px;
    font-style: italic;
    border-bottom: 1px solid var(--border-light);
}

/* Article Content */
.article-content {
    padding: var(--gap);
}

.article-excerpt {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--gap);
    padding: 20px;
    background: var(--bg-accent);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary-color);
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.article-body > * {
    margin-bottom: 20px;
}

.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    font-family: var(--font-family-heading);
    font-weight: 600;
    color: var(--text-primary);
    margin: 30px 0 16px 0;
    line-height: 1.3;
}

.article-body h2 {
    font-size: 1.8rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 12px;
}

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

.article-body h4 {
    font-size: 1.3rem;
}

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

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

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    margin: 24px 0;
    box-shadow: var(--shadow-light);
}

.article-body blockquote {
    border-left: 4px solid var(--primary-color);
    background: var(--bg-secondary);
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
}

.article-body blockquote::before {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    position: absolute;
    top: -10px;
    left: 20px;
    opacity: 0.3;
    font-family: Georgia, serif;
}

.article-body ul,
.article-body ol {
    padding-left: 24px;
    margin: 20px 0;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body ul li {
    list-style-type: none;
    position: relative;
}

.article-body ul li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: -16px;
}

/* Content Advertisement */
.content-ad {
    text-align: center;
    margin: var(--gap) 0;
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    position: relative;
}

.ad-label {
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 3px;
}

.content-ad img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
}

/* Article Footer */
.article-footer {
    padding: var(--gap);
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
}

.article-tags {
    margin-bottom: 24px;
}

.tags-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tag-item:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Sidebar Styles */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
    position: sticky;
    top: 20px;
}

.sidebar-widget {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.widget-title {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-inverse);
    padding: 16px 20px;
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Trending Widget */
.trending-list {
    padding: 20px;
}

.trending-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.trending-item:last-child {
    border-bottom: none;
}

.trending-item:hover {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    margin: 0 -12px;
}

.trending-rank {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: var(--text-inverse);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    margin-top: 4px;
}

.trending-content {
    display: flex;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.trending-thumb {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.trending-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.trending-item:hover .trending-thumb img {
    transform: scale(1.1);
}

.trending-info {
    flex: 1;
    min-width: 0;
}

.trending-title {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
}

.trending-title a {
    color: var(--text-primary);
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition);
}

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

.trending-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    gap: 8px;
}

/* Advertisement Widget */
.ad-widget {
    text-align: center;
}

.ad-container {
    padding: 20px;
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.ad-label {
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 3px;
}

.ad-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.ad-container a:hover img {
    transform: scale(1.02);
    box-shadow: var(--shadow-light);
}

/* Newsletter Widget */
.newsletter-widget {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-inverse);
    border: none;
}

.newsletter-widget .widget-title {
    background: rgba(255, 255, 255, 0.1);
}

.newsletter-desc {
    padding: 0 20px 20px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    line-height: 1.5;
}

.newsletter-form {
    padding: 0 20px 20px;
}

.input-group {
    position: relative;
    display: flex;
    background: var(--bg-primary);
    border-radius: 25px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.input-group input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    outline: none;
    font-size: 14px;
    background: transparent;
    color: var(--text-primary);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.subscribe-btn {
    background: var(--accent-color);
    color: var(--text-primary);
    border: none;
    padding: 12px 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.subscribe-btn:hover {
    background: #e6ac00;
    transform: scale(1.05);
}

/* Categories Widget */
.categories-list {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.category-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--category-color, var(--primary-color));
    transform: scaleY(0);
    transition: var(--transition);
}

.category-item:hover {
    background: var(--bg-hover);
    transform: translateX(8px);
}

.category-item:hover::before {
    transform: scaleY(1);
}

.category-name {
    font-weight: 500;
}

.category-count {
    background: var(--category-color, var(--primary-color));
    color: var(--text-inverse);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

/* Related Articles Section */
.related-articles {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-light);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--gap);
    text-align: center;
    justify-content: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.related-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition);
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.related-image {
    position: relative;
    width: 100%;
    height: 150px; /* Adjusted for 4 columns */
    overflow: hidden;
}

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

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

.related-category {
    position: absolute;
    top: 12px;
    left: 12px;
    color: var(--text-inverse);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.related-content {
    padding: 15px;
}

.related-title {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
}

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

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

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

/* Social Share & Google News */
.social-share {
    text-align: center;
    margin-bottom: 30px;
}

.share-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a1d29;
}

.share-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    color: #fff;
    transition: all 0.3s ease;
}

.share-btn i {
    font-size: 16px;
}

.share-btn.facebook { background-color: #1877F2; }
.share-btn.twitter { background-color: #1DA1F2; }
.share-btn.linkedin { background-color: #0A66C2; }
.share-btn.whatsapp { background-color: #25D366; }

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    color: #fff;
}

.google-news-follow {
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px dashed #ced4da;
}

.google-news-follow a {
    display: inline-flex;
    align-items: center;
    background-color: #fff;
    border: 1px solid #dadce0;
    border-radius: 50px;
    padding: 10px 25px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.google-news-follow a:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-color: #ccc;
}

.google-news-follow img {
    height: 24px;
    width: auto;
    margin-right: 12px;
}

.google-news-follow span {
    color: #3c4043;
    font-weight: 600;
    font-size: 15px;
}


/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 280px;
        --gap: 20px;
    }
    
    .container {
        padding: 0 16px;
    }
}

@media (max-width: 992px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--gap);
    }
    
    .article-header,
    .article-content,
    .article-footer {
        padding: 20px;
    }
    
    .article-title {
        font-size: 1.6rem;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .meta-group {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }
    
    .article-actions {
        align-self: flex-end;
    }
    
    .share-buttons {
        flex-direction: column;
        gap: 8px;
    }
    
    .share-btn {
        justify-content: center;
        width: 100%;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .trending-content {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .trending-thumb {
        align-self: center;
    }
    
    .related-articles {
        padding: 20px;
    }
}

@media (max-width: 576px) {
    .related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --gap: 16px;
    }
    
    .container {
        padding: 0 12px;
    }
    
    .article-header,
    .article-content,
    .article-footer {
        padding: 16px;
    }
    
    .article-title {
        font-size: 1.4rem;
        line-height: 1.3;
    }
    
    .breadcrumb-list {
        font-size: 12px;
    }
    
    .action-btn {
        width: 36px;
        height: 36px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
    
    .sidebar-widget {
        margin: 0 -12px;
        border-radius: 0;
    }
    
    .trending-item:hover {
        margin: 0;
        padding: 12px 0;
        background: transparent;
    }
    
    .related-articles {
        padding: 16px;
        margin-top: 20px;
    }
}