:root {
    /* Color Scheme */
    --primary-color: #1a73e8;
    --primary-dark: #0d47a1;
    --secondary-color: #34a853;
    --accent-color: #ea4335;
    --warning-color: #fbbc05;

    /* Neutral Colors */
    --light-color: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e8eaed;
    --dark-gray: #5f6368;
    --dark-color: #202124;

    /* Category Colors */
    --category-ai: #4285f4;
    --category-gadgets: #34a853;
    --category-software: #ea4335;
    --category-security: #fbbc05;
    --category-startups: #9c27b0;
    --category-industry: #00acc1;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 3rem;

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

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul,
li {
    list-style: none;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.line-clamp-1 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
}

.line-clamp-2 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.line-clamp-3 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.line-clamp-4 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   2. Announcement Bar
   ============================================ */
.announcement-bar {
    background-color: var(--primary-color);
    color: var(--light-color);
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    position: relative;
    z-index: 1001;
}

.announcement-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.announcement-bar p {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.badge {
    background-color: var(--accent-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* ============================================
   3. Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: var(--light-color);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    transition: padding var(--transition-normal);
}

.header.scrolled .header-content {
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--dark-color);
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: translateY(-2px);
}

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    transition: color var(--transition-normal);
}

.header.scrolled .logo-text {
    color: var(--primary-color);
}

.logo-tagline {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
    transition: color var(--transition-normal);
}

.header.scrolled .logo-tagline {
    color: var(--dark-gray);
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}


.nav-menu a:hover {
    color: var(--warning-color);
}

.nav-menu a.active {
    color: var(--warning-color);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--warning-color);
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--light-color);
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) 0;
    z-index: 100;
    animation: fadeInDown 0.3s ease;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--dark-color);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.dropdown-content a:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.dropdown-arrow {
    font-size: var(--font-size-xs);
    margin-left: 4px;
    display: inline-block;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-search {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.header.scrolled .btn-search {
    color: var(--dark-color);
}

.btn-search:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: rotate(15deg);
}

.header.scrolled .btn-search:hover {
    background-color: var(--light-gray);
}

.btn-cta {
    background-color: var(--warning-color);
    color: var(--dark-color);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-cta:hover {
    background-color: #ff9800;
    color: var(--light-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hamburger Menu */
.hamburger-menu {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 1002;
}

.hamburger-menu span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--dark-color);
    transition: all var(--transition-normal);
    transform-origin: center;
}



.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
.nav-mobile {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--light-color);
    z-index: 999;
    padding-top: 80px;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
}

.nav-mobile.active {
    transform: translateX(0);
}

.nav-menu-mobile {
    list-style: none;
    padding: var(--spacing-md) 0;
}

.nav-menu-mobile li {
    border-bottom: 1px solid var(--medium-gray);
}

.nav-menu-mobile a {
    display: block;
    padding: var(--spacing-md);
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-menu-mobile a:hover,
.nav-menu-mobile a.active {
    background-color: var(--light-gray);
    color: var(--primary-color);
    padding-left: var(--spacing-xl);
}

.mobile-dropdown {
    position: relative;
}

.dropdown-content-mobile {
    display: none;
    background-color: var(--light-gray);
    padding-left: var(--spacing-lg);
}

.mobile-dropdown.active .dropdown-content-mobile {
    display: block;
}

.nav-menu-mobile .btn-cta-mobile {
    background-color: var(--primary-color);
    color: var(--light-color);
    text-align: center;
    margin: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.nav-menu-mobile .btn-cta-mobile:hover {
    background-color: var(--primary-dark);
}

/* ============================================
   4. Main Content & Common Sections
   ============================================ */
.main-content {
    padding-top: 80px;
    min-height: 100vh;
}

.section {
    margin-bottom: var(--spacing-2xl);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--dark-color);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

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

.section-link::after {
    content: '→';
    font-weight: 600;
}

/* Category Labels */
.category-label {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: white;
    display: inline-block;
}

.category-label.ai {
    background-color: var(--category-ai);
}

.category-label.gadgets {
    background-color: var(--category-gadgets);
}

.category-label.software {
    background-color: var(--category-software);
}

.category-label.security {
    background-color: var(--category-security);
}

.category-label.startups {
    background-color: var(--category-startups);
}

.category-label.industry {
    background-color: var(--category-industry);
}

/* Card Styles */
.card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.card:hover .card-image img {
    transform: scale(1.1);
}

.card-content {
    padding: var(--spacing-lg);
}

.card-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.card-excerpt {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================
   5. Home Page Specific Styles
   ============================================ */
/* Featured Articles */
.featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.featured-card.large {
    grid-column: 1;
}

.featured-card.large .card-image {
    height: 300px;
}

.featured-card .card-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--accent-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    z-index: 1;
}

/* Categories Section */
.section-categories {
    background-color: var(--light-gray);
    padding: var(--spacing-xl) 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.category-card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-decoration: none;
    color: var(--dark-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.category-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    transition: all var(--transition-normal);
}

.category-card:hover .category-icon {
    background-color: var(--primary-color);
    color: var(--light-color);
    transform: rotate(15deg) scale(1.1);
}

.category-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.category-description {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

.category-count {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 600;
    background-color: var(--light-gray);
    padding: 2px 8px;
    border-radius: 12px;
}

/* Latest News */
.latest-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.news-card {
    display: grid;
    grid-template-columns: 1fr;
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.news-card-image {
    aspect-ratio: 4 / 3;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

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

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--medium-gray);
    font-size: var(--font-size-sm);
}

.card-stats {
    color: var(--dark-gray);
}

/* Analysis Section */
.analysis-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.analysis-card {
    background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-normal);
}

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

.analysis-img {
    aspect-ratio: 4 / 3;
    margin-bottom: 20px;
}

.analysis-img img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    object-fit: cover;
}

.analysis-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.feature {
    background-color: var(--light-gray);
    color: var(--dark-gray);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
}

/* Reviews Section */
.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.review-card {
    display: grid;
    grid-template-columns: 1fr;
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.review-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.review-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.review-rating {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
}

.rating-value {
    font-weight: 700;
    font-size: var(--font-size-md);
    color: var(--dark-color);
}

.stars {
    display: flex;
    gap: 2px;
}

.star {
    color: var(--warning-color);
    font-size: var(--font-size-sm);
}

.star.half {
    position: relative;
    overflow: hidden;
    width: 8px;
}

.review-content {
    padding: var(--spacing-lg);
}

.review-highlights {
    margin: var(--spacing-md) 0;
}

.highlight {
    display: block;
    font-size: var(--font-size-sm);
    margin-bottom: 4px;
    padding-left: var(--spacing-md);
    position: relative;
}

.highlight::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.highlight.positive {
    color: var(--secondary-color);
}

.highlight.positive::before {
    background-color: var(--secondary-color);
}

.highlight.negative {
    color: var(--accent-color);
}

.highlight.negative::before {
    background-color: var(--accent-color);
}

/* ============================================
   6. List Page Specific Styles
   ============================================ */
.list-page .main-content {
    padding-top: 120px;
}

/* Breadcrumb */
.breadcrumb-section {
    background-color: var(--light-gray);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--medium-gray);
    backdrop-filter: blur(10px);
}

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

.breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    list-style: none;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

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

.breadcrumb-item a {
    color: var(--dark-gray);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
}

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

.breadcrumb-item:not(:last-child)::after {
    content: "/";
    margin-left: var(--spacing-xs);
    color: var(--dark-gray);
    opacity: 0.5;
}

.breadcrumb-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.stat-item strong {
    color: var(--dark-color);
    font-weight: 600;
}

/* Page Header */
.page-header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-bottom: 1px solid var(--medium-gray);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
    line-height: 1.2;
}

.page-description {
    font-size: var(--font-size-md);
    color: var(--dark-gray);
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

/* Category Filter */
.category-filter {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
}

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

.filter-label {
    font-weight: 600;
    color: var(--dark-color);
    font-size: var(--font-size-sm);
}

.filter-dropdown {
    position: relative;
    display: inline-block;
}

.filter-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--light-color);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--dark-color);
    cursor: pointer;
    min-width: 180px;
    transition: all var(--transition-fast);
}

.filter-dropdown-toggle:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.filter-dropdown-toggle svg {
    transition: transform var(--transition-fast);
}

.filter-dropdown:hover .filter-dropdown-toggle svg {
    transform: rotate(180deg);
}

.filter-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--light-color);
    min-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    overflow: hidden;
    border: 1px solid var(--medium-gray);
    animation: fadeInDown 0.3s ease;
}

.filter-dropdown:hover .filter-dropdown-menu {
    display: block;
}

.filter-option {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--dark-color);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.filter-option:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.filter-option.active {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.filter-tag {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--light-color);
    border: 1px solid var(--medium-gray);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    color: var(--dark-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.filter-tag:hover {
    background-color: var(--light-gray);
    border-color: var(--primary-color);
}

.filter-tag.active {
    background-color: var(--primary-color);
    color: var(--light-color);
    border-color: var(--primary-color);
}

/* Content Layout */
.list-content-section {
    padding: var(--spacing-xl) 0;
}

.content-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

/* Main Column */
.main-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Article Grid */
.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.article-card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.article-card-large {
    grid-column: 1;
}

.article-card-large .article-card-image {
    height: 280px;
}

.article-card-featured {
    border-left: 4px solid var(--primary-color);
}

.article-card-horizontal {
    border-top: 3px solid var(--category-ai);
}

.article-card-compact {
    padding: var(--spacing-lg);
}

.article-card-image {
    aspect-ratio: 4 / 3;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.article-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--accent-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    z-index: 1;
}

.article-card-content {
    padding: var(--spacing-lg);
}

.article-card-featured .article-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-card-horizontal .article-card-content {
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.article-category {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: white;
}

.article-category.ai {
    background-color: var(--category-ai);
}

.article-category.industry {
    background-color: var(--category-industry);
}

.article-category.security {
    background-color: var(--category-security);
}

.article-category.software {
    background-color: var(--category-software);
}

.article-category.startups {
    background-color: var(--category-startups);
}

.article-category.education {
    background-color: #9c27b0;
}

.article-category.gadgets {
    background-color: var(--category-gadgets);
}

.article-card-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-large .article-title {
    font-size: var(--font-size-xl);
}

.article-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.article-excerpt {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-large .article-excerpt {
    font-size: var(--font-size-md);
}

.article-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.feature {
    background-color: var(--light-gray);
    color: var(--dark-gray);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--medium-gray);
    font-size: var(--font-size-sm);
}

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

.article-author strong {
    color: var(--dark-color);
    font-weight: 600;
}

.article-stats {
    display: flex;
    gap: var(--spacing-md);
    color: var(--dark-gray);
}

/* Pagination */
.pagination-section {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--medium-gray);
}

.pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.pagination-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
}

.pagination-item.pagination-ellipsis {
    padding: 0 var(--spacing-xs);
    color: var(--dark-gray);
}

.pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    background-color: var(--light-color);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    color: var(--dark-color);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    background-color: var(--light-gray);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-link.active {
    background-color: var(--primary-color);
    color: var(--light-color);
    border-color: var(--primary-color);
}

.pagination-prev,
.pagination-next {
    gap: var(--spacing-xs);
}

.pagination-prev svg {
    margin-right: 4px;
}

.pagination-next svg {
    margin-left: 4px;
}

.pagination-jump {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.pagination-input {
    display: flex;
    gap: var(--spacing-xs);
}

.pagination-input input {
    width: 60px;
    padding: var(--spacing-xs);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: var(--font-size-sm);
}

.pagination-go {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.pagination-go:hover {
    background-color: var(--primary-dark);
}

/* Sidebar */
.author-byline {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.author-mini-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.author-byline .author-name {
    font-weight: 600;
    color: #0b1c2f;
    font-size: 1rem;
    margin: 0;
}

.author-widget .author-header {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.2rem;
    margin-top: 0;
    padding: 0;
    border: none;
    background: none;
    box-shadow: none;
}

.author-widget .author-header::before {
    content: none;
}

.author-widget .author-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.author-widget .author-name-title h3 {
    font-size: 1.2rem;
    margin: 0 0 0.2rem;
    border: none;
    padding: 0;
    color: #333;
}

.author-name-title p {
    font-size: 0.9rem;
    color: #6b7f94;
}

.author-widget .author-bio {
    font-size: 0.95rem;
    color: #34495e;
    line-height: 1.5;
    margin: 0;
}

.sidebar-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.sidebar-widget {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.sidebar-widget:hover {
    transform: translateY(-4px);
}

.widget-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--light-gray);
}

.widget-description {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

/* Recommended Articles */
.recommended-articles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.recommended-article {
    display: flex;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
    transition: all var(--transition-fast);
}

.recommended-article:hover {
    padding-left: var(--spacing-sm);
}

.recommended-article:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.recommended-rank {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    background-color: var(--light-gray);
    border-radius: 50%;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--dark-color);
}

.recommended-article:nth-child(1) .recommended-rank {
    background-color: #ffd700;
    color: #000;
}

.recommended-article:nth-child(2) .recommended-rank {
    background-color: #c0c0c0;
    color: #000;
}

.recommended-article:nth-child(3) .recommended-rank {
    background-color: #cd7f32;
    color: #000;
}

.recommended-content {
    flex: 1;
}

.recommended-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommended-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.recommended-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
}

.recommended-category {
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    color: white;
}

.recommended-category.ai {
    background-color: var(--category-ai);
}

.recommended-category.industry {
    background-color: var(--category-industry);
}

.recommended-category.education {
    background-color: #9c27b0;
}

/* Tags Cloud */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--light-gray);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    color: var(--dark-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.tag:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
    transform: translateY(-2px);
}

/* Sidebar Form */
.sidebar-form .form-group {
    margin-bottom: var(--spacing-sm);
}

.sidebar-form .form-input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast);
}

.sidebar-form .form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.sidebar-form .btn-submit {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.sidebar-form .btn-submit:hover {
    background-color: var(--primary-dark);
}

.sidebar-form .form-note {
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
    margin-top: var(--spacing-xs);
    text-align: center;
}

/* Related Categories */
.related-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.related-category {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background-color: var(--light-gray);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--dark-color);
    transition: all var(--transition-fast);
}

.related-category:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
    transform: translateX(4px);
}

.category-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.category-count {
    font-size: var(--font-size-xs);
    background-color: rgba(255, 255, 255, 0.2);
    padding: 2px 8px;
    border-radius: 12px;
}

.related-category:hover .category-count {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Events Widget */
.events-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.event-item {
    display: flex;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
    transition: all var(--transition-fast);
}

.event-item:hover {
    padding-left: var(--spacing-sm);
}

.event-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    height: 50px;
    background-color: var(--light-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.event-item:hover .event-date {
    background-color: var(--primary-color);
    color: white;
}

.event-day {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1;
    transition: color var(--transition-fast);
}

.event-item:hover .event-day {
    color: white;
}

.event-month {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--dark-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color var(--transition-fast);
}

.event-item:hover .event-month {
    color: rgba(255, 255, 255, 0.9);
}

.event-content {
    flex: 1;
}

.event-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 2px;
    color: var(--dark-color);
    transition: color var(--transition-fast);
}

.event-item:hover .event-title {
    color: var(--primary-color);
}

.event-info {
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
}

/* ============================================
   7. Detail Page Specific Styles
   ============================================ */
.detail-page .main-content {
    padding-top: 120px;
}

/* Article Header Section */
.article-header-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
    border-bottom: 1px solid var(--medium-gray);
}

.article-header-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-meta-top {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.article-reading-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

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

.meta-icon {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.meta-icon svg {
    color: var(--dark-gray);
}

.article-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

.article-subtitle {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
    max-width: 700px;
}

.article-meta-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--medium-gray);
}

.article-publish-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.publish-label {
    font-weight: 600;
    color: var(--dark-color);
}

.publish-date {
    color: var(--dark-gray);
}

.update-info {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 500;
}

.update-info time {
    font-weight: 600;
}

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

.share-label {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    font-weight: 500;
}

.share-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--light-color);
    border: 1px solid var(--medium-gray);
    color: var(--dark-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.share-button[data-platform="twitter"]:hover {
    background-color: #1da1f2;
    border-color: #1da1f2;
    color: white;
}

.share-button[data-platform="facebook"]:hover {
    background-color: #1877f2;
    border-color: #1877f2;
    color: white;
}

.share-button[data-platform="linkedin"]:hover {
    background-color: #0077b5;
    border-color: #0077b5;
    color: white;
}

.share-button[data-platform="copy"]:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Article Content Section */
.article-content-section {
    padding: var(--spacing-xl) 0;
}

/* Featured Image */
.article-featured-image {
    margin-bottom: var(--spacing-xl);
}

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

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

.article-featured-image figcaption {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--light-gray);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    text-align: center;
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
}

/* Author Info */
.article-author-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--primary-color);
}

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

.author-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

.author-details {
    flex: 1;
}

.author-meta {
    margin-bottom: var(--spacing-sm);
}

.author-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--dark-color);
}

.author-title {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    font-weight: 500;
}

.author-bio {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

.author-stats {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.author-stat {
    color: var(--dark-gray);
}

.author-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.author-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Article Content */
.article-content {
    font-size: 0.985rem;
    letter-spacing: 0.2px;
    color: #171717;
    line-height: 1.75;
    margin-bottom: var(--spacing-2xl);
}

.article-content img {
    margin: 0 auto;
}

.content-intro {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--dark-color);
    margin-bottom: var(--spacing-xl);
}

.content-highlights {
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    border-left: 4px solid var(--category-ai);
}

.content-highlights h4 {
    font-size: var(--font-size-md);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

.content-highlights ul {
    padding-left: var(--spacing-lg);
    margin: 0;
}

.content-highlights li {
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
    position: relative;
}

.content-highlights li::before {
    content: '→';
    position: absolute;
    left: -20px;
    color: var(--primary-color);
}

.content-highlights li:last-child {
    margin-bottom: 0;
}

.content-image {
    margin: var(--spacing-xl) 0;
}

.content-image figure {
    margin: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.content-image figcaption {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--light-gray);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    text-align: center;
}

.performance-table {
    overflow-x: auto;
    margin: var(--spacing-xl) 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--medium-gray);
}

.performance-table h4 {
    font-size: var(--font-size-md);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
    padding: var(--spacing-md) var(--spacing-md) 0;
}

.performance-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    min-width: 600px;
}

.performance-table thead {
    background-color: var(--light-gray);
}

.performance-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--dark-color);
    border-bottom: 2px solid var(--medium-gray);
}

.performance-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--medium-gray);
    color: var(--dark-gray);
}

.performance-table tr:last-child td {
    border-bottom: none;
}

.performance-table tbody tr:hover {
    background-color: rgba(26, 115, 232, 0.05);
}

.article-quote {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    font-style: italic;
    position: relative;
}

.article-quote::before {
    content: '"';
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.3;
    font-family: serif;
    line-height: 1;
}

.article-quote p {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.article-quote cite {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    font-style: normal;
    font-weight: 600;
    text-align: right;
    position: relative;
    z-index: 1;
}

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

.article-content li {
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
    position: relative;
}

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

.article-content li:last-child {
    margin-bottom: 0;
}

.content-conclusion {
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    border-left: 4px solid var(--category-ai);
    position: relative;
    overflow: hidden;
}

.content-conclusion::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background-color: var(--primary-color);
    opacity: 0.1;
    border-radius: 50%;
    transform: translate(50px, -50px);
}

.content-conclusion h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
    position: relative;
    z-index: 1;
}

/* Article Tags */
.article-tags {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--medium-gray);
    border-bottom: 1px solid var(--medium-gray);
    margin-bottom: var(--spacing-xl);
}

.tags-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* Share Section */
.article-share-section {
    padding: var(--spacing-xl);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.share-section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--dark-color);
}

.share-section-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.share-btn-large {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.share-btn-large i{
    font-size: 22px;
}

.share-btn-large.twitter {
    background-color: #1da1f2;
    color: white;
}

.share-btn-large.facebook {
    background-color: #1877f2;
    color: white;
}

.share-btn-large.linkedin {
    background-color: #0077b5;
    color: white;
}

.share-btn-large.pinterest {
    background-color: #ea4335;
    color: white;
}

.share-btn-large:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    opacity: 0.9;
}

/* Author Call to Action */
.author-cta {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #4285f4 0%, #1a73e8 100%);
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.author-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.3;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.author-cta-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.author-cta-content p {
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.author-cta-content a {
    color: white;
    text-decoration: underline;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.author-cta-actions {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.btn-follow {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: white;
    color: var(--primary-color);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-articles {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: transparent;
    color: white;
    border: 2px solid white;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

/* Comments Section */
.comments-section {
    margin-bottom: var(--spacing-2xl);
}

.comments-header {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--light-gray);
}

.comments-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
}

.comments-sort {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.sort-label {
    color: var(--dark-gray);
}

.sort-dropdown {
    position: relative;
    display: inline-block;
}

.sort-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--light-color);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--dark-color);
    cursor: pointer;
    min-width: 140px;
    transition: border-color var(--transition-fast);
}

.sort-dropdown-toggle:hover {
    border-color: var(--primary-color);
}

.sort-dropdown-toggle svg {
    transition: transform var(--transition-fast);
}

.sort-dropdown:hover .sort-dropdown-toggle svg {
    transform: rotate(180deg);
}

.sort-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--light-color);
    min-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    overflow: hidden;
    border: 1px solid var(--medium-gray);
    animation: fadeInDown 0.3s ease;
}

.sort-dropdown:hover .sort-dropdown-menu {
    display: block;
}

.sort-option {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--dark-color);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast);
}

.sort-option:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.sort-option.active {
    background-color: var(--primary-color);
    color: var(--light-color);
}

/* Comment Form */
.comment-form-container {
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.comment-form-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--dark-color);
}

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

.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    resize: vertical;
    transition: all var(--transition-fast);
    min-height: 120px;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.form-footer {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.form-notice {
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
}

.btn-submit-comment {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

/* Comments List */
.comments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.comment-item {
    display: flex;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--light-gray);
    transition: all var(--transition-fast);
}

.comment-item:hover {
    padding-left: var(--spacing-sm);
}

.comment-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.comment-avatar {
    flex-shrink: 0;
}

.comment-avatar img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--light-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.comment-item:hover .comment-avatar img {
    transform: scale(1.1);
    border-color: var(--primary-color);
}

.comment-avatar-initial {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--category-ai);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-md);
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-sm);
}

.comment-author {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 2px;
}

.comment-time {
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
}

.comment-text {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

.comment-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.comment-action {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--dark-gray);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: 0;
    transition: all var(--transition-fast);
}

.comment-action.like:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.comment-action.reply:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.comment-action svg {
    stroke: currentColor;
}

/* Load More Comments */
.comments-load-more {
    text-align: center;
}

.btn-load-comments {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--light-color);
    border: 2px solid var(--medium-gray);
    border-radius: var(--radius-md);
    color: var(--dark-color);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-load-comments:hover {
    background-color: var(--light-gray);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Related Articles */
.related-articles-section {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--medium-gray);
}

.related-articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.related-article-card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.related-article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.related-article-image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

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

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

.related-article-content {
    padding: var(--spacing-lg);
}

.related-article-content .article-meta {
    margin-bottom: var(--spacing-sm);
}

.related-article-content .article-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-article-content .article-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.related-article-content .article-excerpt {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-article-content .article-footer {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

/* ============================================
   8. Author Page Specific Styles
   ============================================ */
.author-page .main-content {
    padding-top: 120px;
}

/* Author Header Section */
.author-header-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
    border-bottom: 1px solid var(--medium-gray);
}

.author-header-content {
    max-width: 1000px;
    margin: 0 auto;
}

.author-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.author-avatar-large {
    position: relative;
    flex-shrink: 0;
}

.author-avatar-large img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.author-avatar-large:hover img {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.author-verification {
    position: absolute;
    bottom: 20px;
    right: 10px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.author-avatar-large:hover .author-verification {
    transform: scale(1.1) rotate(15deg);
    background-color: var(--secondary-color);
}

.author-header-info {
    flex: 1;
    text-align: center;
}

.author-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.author-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
}

.author-badge.featured {
    background-color: #ffd700;
    color: #000;
}

.author-badge.featured:hover {
    background-color: #ffc107;
    transform: translateY(-2px);
}

.author-badge.expert {
    background-color: var(--category-ai);
    color: white;
}

.author-badge.expert:hover {
    background-color: #3367d6;
    transform: translateY(-2px);
}

.author-badge.contributor {
    background-color: var(--accent-color);
    color: white;
}

.author-badge.contributor:hover {
    background-color: #d23f31;
    transform: translateY(-2px);
}

.author-name {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
    line-height: 1.2;
}

.author-title-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-lg);
    color: var(--dark-gray);
}

.author-title {
    font-weight: 600;
    color: var(--dark-color);
}

.author-divider {
    color: var(--medium-gray);
}

.author-tenure {
    color: var(--dark-gray);
}

.author-stats-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--medium-gray);
    border-bottom: 1px solid var(--medium-gray);
}

.author-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-fast);
}

.author-stat-item:hover {
    transform: translateY(-4px);
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--dark-color);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    font-weight: 500;
}

.author-social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--light-gray);
    color: var(--dark-color);
    transition: all var(--transition-fast);
}

.social-link:hover {
    transform: translateY(-2px) scale(1.1);
    box-shadow: var(--shadow-md);
}

.social-link.twitter:hover {
    background-color: #1da1f2;
    color: white;
}

.social-link.linkedin:hover {
    background-color: #0077b5;
    color: white;
}

.social-link.github:hover {
    background-color: #333;
    color: white;
}

.social-link.scholar:hover {
    background-color: #4285f4;
    color: white;
}

.social-link.email:hover {
    background-color: var(--primary-color);
    color: white;
}

.author-header-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.btn-follow-author,
.btn-contact-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.btn-follow-author {
    background-color: var(--primary-color);
    color: var(--light-color);
}

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

.btn-contact-author {
    background-color: transparent;
    color: var(--dark-color);
    border: 2px solid var(--medium-gray);
}

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

/* Author Expertise */
.author-expertise {
    padding: var(--spacing-lg);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
}

.expertise-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
    text-align: center;
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.expertise-tag {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--light-color);
    border: 1px solid var(--medium-gray);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    color: var(--dark-color);
    transition: all var(--transition-fast);
}

.expertise-tag:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Author Content Section */
.author-content-section {
    padding: var(--spacing-2xl) 0;
}

.author-content-layout {
    max-width: 1000px;
    margin: 0 auto;
}

/* Author Introduction */
.author-introduction {
    margin-bottom: var(--spacing-2xl);
}

.author-bio-full {
    font-size: var(--font-size-md);
    line-height: 1.7;
    color: var(--dark-color);
}

.author-bio-full p {
    margin-bottom: var(--spacing-lg);
}

.author-highlights {
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    border-left: 4px solid var(--category-ai);
    position: relative;
    overflow: hidden;
}

.author-highlights::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    transform: skewX(-20deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        right: -100px;
    }

    100% {
        right: 100%;
    }
}

.highlight-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
    position: relative;
    z-index: 1;
}

.highlight-list {
    padding-left: var(--spacing-lg);
    margin: 0;
    position: relative;
    z-index: 1;
}

.highlight-list li {
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
    position: relative;
}

.highlight-list li::before {
    content: '✓';
    position: absolute;
    left: -20px;
    color: var(--secondary-color);
    font-weight: bold;
}

.highlight-list li:last-child {
    margin-bottom: 0;
}

/* Author Credentials */
.author-credentials {
    margin-bottom: var(--spacing-2xl);
}

.credentials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.credentials-section {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.credentials-section:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.credentials-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--dark-color);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--light-gray);
}

.credentials-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.credential-item {
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--light-gray);
    transition: all var(--transition-fast);
}

.credential-item:hover {
    padding-left: var(--spacing-sm);
}

.credential-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.credential-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.credential-name {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--dark-color);
}

.credential-year {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    font-weight: 600;
    background-color: var(--light-gray);
    padding: 2px 8px;
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.credential-item:hover .credential-year {
    background-color: var(--primary-color);
    color: white;
}

.credential-details {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.credential-institution {
    font-weight: 600;
    color: var(--dark-color);
}

.credential-location {
    color: var(--dark-gray);
}

.credential-description {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    line-height: 1.6;
}

/* Author Publications */
.author-publications {
    margin-bottom: var(--spacing-2xl);
}

.publications-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.publication-card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.publication-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.publication-type {
    margin-bottom: var(--spacing-sm);
}

.publication-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: white;
}

.publication-badge.journal {
    background-color: #4285f4;
}

.publication-badge.conference {
    background-color: #34a853;
}

.publication-badge.book {
    background-color: #9c27b0;
}

.publication-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.publication-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.publication-venue {
    font-weight: 600;
    color: var(--dark-color);
}

.publication-abstract {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.publication-link {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

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

.publication-link::after {
    content: '→';
}

/* Author Articles Section */
.author-articles-section {
    margin-bottom: var(--spacing-2xl);
}

.author-articles-filter {
    margin-bottom: var(--spacing-lg);
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    border-bottom: 1px solid var(--medium-gray);
    padding-bottom: var(--spacing-sm);
}

.filter-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    background-color: var(--light-gray);
    color: var(--dark-color);
}

.filter-tab.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.author-articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.author-article-card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.author-article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.author-article-image {
    height: 180px;
    overflow: hidden;
    position: relative;
}

.author-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.author-article-content {
    padding: var(--spacing-lg);
}

.author-article-content .article-meta {
    margin-bottom: var(--spacing-sm);
}

.author-article-content .article-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.author-article-content .article-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.author-article-content .article-title a:hover {
    color: var(--primary-color);
}

.author-article-content .article-excerpt {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

/* Author Philosophy */
.author-philosophy {
    margin-bottom: var(--spacing-2xl);
}

.philosophy-content {
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.philosophy-quote {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.philosophy-quote::before {
    content: '"';
    position: absolute;
    top: 0;
    left: var(--spacing-md);
    font-size: 6rem;
    color: var(--primary-color);
    opacity: 0.1;
    font-family: serif;
    line-height: 1;
}

.philosophy-quote::after {
    content: '"';
    position: absolute;
    bottom: -2rem;
    right: var(--spacing-md);
    font-size: 6rem;
    color: var(--primary-color);
    opacity: 0.1;
    font-family: serif;
    line-height: 1;
}

.philosophy-quote blockquote {
    margin: 0;
    position: relative;
    z-index: 1;
}

.philosophy-quote p {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--dark-color);
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.philosophy-points h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--dark-color);
    text-align: center;
}

.points-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.point-card {
    background-color: var(--light-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.point-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.point-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: var(--primary-color);
    transition: all var(--transition-normal);
}

.point-card:hover .point-icon {
    background-color: var(--primary-color);
    color: white;
    transform: rotate(15deg) scale(1.1);
}

.point-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

.point-description {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    line-height: 1.6;
}

/* Author Newsletter */
.author-newsletter {
    background: linear-gradient(135deg, #4285f4 0%, #1a73e8 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    color: white;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.author-newsletter::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.5;
    animation: floatReverse 30s linear infinite;
}

@keyframes floatReverse {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(-360deg);
    }
}

.newsletter-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.newsletter-description {
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.newsletter-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.newsletter-form .form-input {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background-color: rgba(255, 255, 255, 0.9);
}

.newsletter-form .btn-submit {
    background-color: var(--dark-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.newsletter-form .btn-submit:hover {
    background-color: #333;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.form-note {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    position: relative;
    z-index: 1;
}

.form-note a {
    color: white;
    text-decoration: underline;
}

/* Bottom Newsletter Section */
.section-newsletter .btn-cta-secondary {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: transparent;
    color: white;
    border: 2px solid white;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    margin-top: var(--spacing-md);
}

.section-newsletter .btn-cta-secondary:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   9. Common Components
   ============================================ */
/* Newsletter Section */
.section-newsletter {
    background-color: var(--primary-color);
    color: var(--light-color);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.newsletter-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.newsletter-description {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    opacity: 0.9;
}

.newsletter-form {
    max-width: 500px;
    margin: 0 auto;
}

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

.newsletter-form .form-input {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: none;
    font-size: var(--font-size-base);
    background-color: rgba(255, 255, 255, 0.9);
}

.newsletter-form .btn-submit {
    background-color: var(--dark-color);
    color: var(--light-color);
    border: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.newsletter-form .btn-submit:hover {
    background-color: #333;
}

.newsletter-form .form-note {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: var(--light-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--light-color);
    text-decoration: none;
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    color: var(--light-color);
    transform: translateY(-2px);
}

.footer-heading {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--light-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-links a:hover {
    color: var(--light-color);
    padding-left: var(--spacing-sm);
}

.footer-links a::before {
    content: '→';
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover::before {
    opacity: 1;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.footer-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-input {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
    font-size: var(--font-size-sm);
}

.footer-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.footer-btn {
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.footer-contact {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.footer-bottom {
    padding: 20px 0;
}

.footer-bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer-bottom p a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--light-color);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
    transform: translateY(20px);
}

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

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-xl);
}

.back-to-top svg {
    transition: transform var(--transition-fast);
}

.back-to-top:hover svg {
    transform: translateY(-2px);
}

/* ============================================
   10. Responsive Styles
   ============================================ */
@media (min-width: 640px) {
    .form-group {
        flex-direction: row;
    }

    .form-input {
        flex: 1;
    }

    .footer-form-group {
        flex-direction: row;
    }

    .footer-input {
        flex: 1;
    }

    .share-section-buttons {
        flex-direction: row;
        justify-content: center;
    }

    .form-footer {
        flex-direction: row;
        align-items: center;
    }

    .comment-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

@media (min-width: 768px) {
    .nav-desktop {
        display: block;
    }

    .hamburger-menu {
        display: none;
    }

    .featured-grid {
        grid-template-columns: 2fr 1fr;
    }

    .featured-card.large {
        grid-row: span 2;
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .latest-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .news-card {
        grid-template-columns: 1fr 1fr;
    }

    .news-card:nth-child(odd) .news-card-content {
        order: 2;
    }

    .news-card:nth-child(odd) .news-card-image {
        order: 1;
    }

    .analysis-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom-content {
        flex-direction: row;
        justify-content: center;
        text-align: left;
    }

    /* List Page */
    .breadcrumb {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .category-filter {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .filter-group {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-md);
    }

    .content-layout {
        grid-template-columns: 1fr;
    }

    .article-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .article-card-large {
        grid-column: span 2;
    }

    .article-card-featured {
        grid-column: span 2;
        display: grid;
        grid-template-columns: 2fr 1fr;
    }

    .article-card-featured .article-card-content {
        padding: var(--spacing-xl);
    }

    .pagination {
        flex-direction: row;
        justify-content: space-between;
    }

    /* Detail Page */
    .article-meta-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .article-share {
        align-items: flex-end;
    }

    .article-author-info {
        flex-direction: row;
        align-items: flex-start;
    }

    .form-row {
        flex-direction: row;
    }

    .form-row .form-group {
        flex: 1;
    }

    .related-articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Author Page */
    .author-profile {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--spacing-2xl);
    }

    .author-header-info {
        text-align: left;
    }

    .author-badges {
        justify-content: flex-start;
    }

    .author-title-meta {
        justify-content: flex-start;
    }

    .author-stats-header {
        justify-content: flex-start;
    }

    .author-social-links {
        justify-content: flex-start;
    }

    .author-header-actions {
        justify-content: flex-start;
    }

    .credentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .publications-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .author-articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .points-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .latest-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* List Page */
    .content-layout {
        grid-template-columns: 66% 30%;
        gap: var(--spacing-2xl);
    }

    .article-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .article-card-large {
        grid-column: span 2;
    }

    .article-card-featured {
        grid-column: span 2;
    }

    /* Author Page */
    .points-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1200px) {
    .container {
        padding: 0;
    }
}


@media (max-width: 768px) {
    .author-mini-avatar {
        display: none;
    }

    .header {
        position: relative;
    }

    .header-content {
        padding: 0;
    }

    .main-content {
        padding-top: 20px;
    }

    .pagination-list {
        flex-wrap: wrap;
    }

    .page-header {
        padding: 0;
    }

    .page-title {
        font-size: 1.4rem;
        margin: 0;
        padding: 5px 0;
    }

    .article-header-section {
        padding-top: 0;
    }

    .article-title {
        font-size: 1.4rem;
    }

    .article-author-info {
        align-items: center;
    }

    .content-layout {
        grid-template-columns: 100%;
    }
}



/* Print Styles */
@media print {

    .header,
    .announcement-bar,
    .section-newsletter,
    .footer,
    .back-to-top,
    .sidebar-column,
    .comments-section,
    .article-share-section,
    .author-cta {
        display: none;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .main-content {
        padding-top: 0;
    }

    a {
        color: #000;
        text-decoration: none;
    }

    .card-title a::after {
        content: " (" attr(href) ")";
        font-size: 10pt;
        color: #666;
    }

    .article-title a::after {
        content: " (" attr(href) ")";
        font-size: 10pt;
        color: #666;
    }
}