/* =========================================
   TechPulse - Modern Tech Blog Template
   CSS Reset and Base Styles
   ========================================= */

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

:root {
    /* Color Palette - Modern Tech Theme */
    --primary-color: #4b78d9;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;

    --secondary-color: #7c3aed;
    --secondary-light: #ede9fe;

    --accent-color: #0ea5e9;
    --accent-light: #e0f2fe;

    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;

    --background-light: #ffffff;
    --background-gray: #f9fafb;
    --background-dark: #111827;

    --border-color: #e5e7eb;
    --border-light: #f3f4f6;

    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;

    /* Typography */
    --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;

    /* Borders */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-light);
    overflow-x: hidden;
}

.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: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* =========================================
   Typography
   ========================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

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

ul,
li {
    list-style: none;
}

/* =========================================
   Header & Navigation
   ========================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom-color: var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-text {
    letter-spacing: -0.025em;
}

.logo-dot {
    color: var(--primary-color);
}

.main-nav {
    display: flex;
    align-items: center;
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

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

.btn-subscribe {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.btn-subscribe:hover {
    background-color: var(--primary-dark);
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger-line {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--text-primary);
    transition: transform var(--transition-normal);
}

.hamburger-menu.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

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

.main-content {
    margin-top: 80px;
}

.section {
    padding: var(--spacing-md) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}



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

.primary-featured {
    grid-row: span 2;
}

.featured-card {
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background-color: white;
}

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

.featured-card-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

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

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

.card-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius-sm);
}

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

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.meta-author {
    font-weight: 600;
    color: var(--text-primary);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

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

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

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

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

.tag {
    background-color: var(--background-gray);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--border-radius-sm);
}

.vertical-featured {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.vertical-featured .featured-card-image {
    height: 180px;
}

.secondary-featured {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.blog-box {
    display: flex;
}

.featured-img {
    width: 300px;
    height: 100%;
}

.post-media {
    position: relative;
    overflow: hidden;
    height: 100%;
    border-radius: 20px;
}

.post-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-media img {
    -webkit-transition: all .3s ease-in-out;
    -moz-transition: all .3s ease-in-out;
    -ms-transition: all .3s ease-in-out;
    -o-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
    -webkit-transform: scale(1);
    -moz-transform: scale(1);
    -ms-transform: scale(1);
    -o-transform: scale(1);
    transform: scale(1);
}

.post-media:hover img {
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -ms-transform: scale(1.1);
    -o-transform: scale(1.1);
    transform: scale(1.1);
}

.hovereffect {
    position: absolute;
    top: 0;
    opacity: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.2);
    -webkit-transition: all .3s ease-in-out;
    -moz-transition: all .3s ease-in-out;
    -ms-transition: all .3s ease-in-out;
    -o-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
    zoom: 1;
    filter: alpha(opacity=0);
    opacity: 0.5;
    background: -moz-linear-gradient(0deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.1) 50%);
    background: -webkit-linear-gradient(0deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.1) 50%);
    background: linear-gradient(0deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.1) 50%);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#000000', endColorstr='#00000000', GradientType=1);
}

.post-media:hover .hovereffect {
    visibility: visible;
    zoom: 1;
    filter: alpha(opacity=100);
    opacity: 1;
}

.blog-meta {
    flex: 1;
    padding: 10px;
}

.blog-meta.big-meta h3 {
    margin-left: -20%;
    margin-top: 1rem;
    background-color: #ffffff;
    padding: 0.5rem 1.5rem 0.4rem;
    font-size: 24px;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    line-height: 1.3;
}

.blog-meta.big-meta p {
    margin-bottom: 0.5rem;
    padding-bottom: 0;
}

.blog-meta small {
    font-size: 11px;
    display: inline-block;
    margin-bottom: 0;
    padding-bottom: 0;
    color: #111111;
    font-weight: bold;
    text-transform: uppercase;
    margin-right: 0.5rem;
}

.blog-meta small {
    font-weight: 500;
    color: #999 !important;
}

.bg-blue {
    background-color: var(--accent-color);
}

.blog-meta .bg-blue {
    color: #ffffff !important;
    padding: 0.2rem 0.8rem;
    border-radius: 3px;
}



.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    background-color: var(--background-gray);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.category-card:hover {
    background-color: white;
    border-color: var(--primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

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

.category-icon svg {
    width: 32px;
    height: 32px;
}

.category-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.category-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.category-count {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-color);
    background-color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
}



.updates-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.update-card {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background-color: white;
}

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

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

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

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

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

.update-card-content .card-meta {
    margin-bottom: var(--spacing-sm);
}

.meta-category {
    background-color: var(--secondary-light);
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--border-radius-sm);
}

.update-card-content .card-title {
    font-size: 1.25rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.update-card-content .card-excerpt {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.section-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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



.analysis-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.analysis-card {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    background-color: white;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.analysis-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

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

.analysis-card .card-category {
    position: static;
    background-color: var(--accent-light);
    color: var(--accent-color);
}

.card-length {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.analysis-card-content .card-title {
    font-size: 1.25rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

.analysis-card-content .card-excerpt {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
}



.trends-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.trends-visualization {
    padding: var(--spacing-xl);
    background-color: var(--background-gray);
    border-radius: var(--border-radius-xl);
}

.trend-item {
    margin-bottom: var(--spacing-lg);
}

.trend-item:last-child {
    margin-bottom: 0;
}

.trend-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.trend-name {
    font-weight: 600;
}

.trend-value {
    font-weight: 700;
    color: var(--primary-color);
}

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

.trend-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 1s ease;
}

.trends-info {
    padding: var(--spacing-xl);
}

.trends-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.trends-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.trends-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--primary-color);
}

.trends-link:hover {
    gap: var(--spacing-sm);
}


.breadcrumb {
    padding: var(--spacing-md) 0;
}

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

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-link {
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.breadcrumb-item.active .breadcrumb-link {
    color: var(--text-primary);
    font-weight: 600;
}

.breadcrumb-separator {
    width: 16px;
    height: 16px;
    color: var(--text-light);
}

/* =========================================
   List Page Specific Styles
   ========================================= */

.list-page {
    padding-top: var(--spacing-xl);
}

.page-header {
    margin-bottom: var(--spacing-xl);
}

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

.category-icon-large {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-lg);
    color: white;
    padding: var(--spacing-md);
}

.category-icon-large svg {
    width: 40px;
    height: 40px;
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.article-count {
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    margin-left: var(--spacing-xs);
}

/* Category Tabs */
.category-tabs {
    margin-bottom: var(--spacing-xl);
}

.tabs-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    background-color: var(--background-gray);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-lg);
}

.tab {
    padding: 0.75rem 1.5rem;
    background-color: white;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.tab:hover {
    border-color: var(--border-color);
    transform: translateY(-2px);
}

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

/* List Layout */
.list-layout {
    display: grid;
    grid-template-columns: 70% 30%;
    gap: var(--spacing-xl);
}

/* Sort Controls */
.sort-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.sort-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.sort-options {
    display: flex;
    gap: var(--spacing-lg);
}

.sort-option {
    padding: 0.5rem 0;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

.sort-option:hover {
    color: var(--text-primary);
}

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

.sort-option.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

.view-toggle {
    display: flex;
    gap: var(--spacing-xs);
}

.view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

/* Articles Grid (List Page) */
.list-main .articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Different Card Styles */
.article-card.type-1 {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background-color: white;
}

.article-card.type-1:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.article-card.type-2 {
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    background-color: white;
}

.article-card.type-2:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.article-card.type-3 {
    border-radius: var(--border-radius-lg);
    background-color: var(--background-gray);
    transition: all var(--transition-normal);
}

.article-card.type-3:hover {
    background-color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.article-card.type-2 .article-card-image,
.article-card.type-3 .article-card-image {
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    overflow: hidden;
}

.article-card.type-1 .article-card-image img,
.article-card.type-2 .article-card-image img,
.article-card.type-3 .article-card-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.article-card.type-1 .article-card-content,
.article-card.type-2 .article-card-content,
.article-card.type-3 .article-card-content {
    padding: var(--spacing-lg);
}

.article-card.type-3 .article-card-content {
    padding-top: var(--spacing-md);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: white;
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.pagination-btn svg {
    width: 16px;
    height: 16px;
}

.pagination-btn.prev svg {
    margin-right: var(--spacing-xs);
}

.pagination-btn.next svg {
    margin-left: var(--spacing-xs);
}

.pagination-numbers {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-md);
    background-color: white;
    color: var(--text-primary);
    font-weight: 500;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

.pagination-number:hover {
    border-color: var(--border-color);
}

.pagination-number.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-ellipsis {
    color: var(--text-light);
    padding: 0 var(--spacing-xs);
}

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

.sidebar-widget {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.sidebar-widget:last-child {
    margin-bottom: 30px;
}

.sidebar-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

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

.related-category {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    background-color: var(--background-gray);
    transition: all var(--transition-fast);
}

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

.related-category-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    border-radius: var(--border-radius-md);
    color: var(--primary-color);
    flex-shrink: 0;
}

.related-category-icon svg {
    width: 24px;
    height: 24px;
}

.related-category-info {
    flex: 1;
}

.related-category-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.category-article-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

.popular-article {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

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

.popular-article-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: var(--background-gray);
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: var(--border-radius-sm);
    flex-shrink: 0;
}

.popular-article:nth-child(1) .popular-article-number {
    background-color: var(--primary-color);
    color: white;
}

.popular-article:nth-child(2) .popular-article-number {
    background-color: var(--secondary-color);
    color: white;
}

.popular-article:nth-child(3) .popular-article-number {
    background-color: var(--accent-color);
    color: white;
}

.popular-article-content {
    flex: 1;
}

.popular-article-title {
    font-size: 0.9375rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

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

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

.popular-article-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

.tag-cloud-item {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--background-gray);
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

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

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

.newsletter-widget .sidebar-title {
    color: white;
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.newsletter-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    color: white;
}

.newsletter-icon svg {
    width: 28px;
    height: 28px;
}

.newsletter-description {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

.newsletter-input {
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-md);
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.9375rem;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-btn {
    padding: 0.75rem 1rem;
    background-color: white;
    color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.newsletter-btn:hover {
    background-color: var(--background-gray);
    transform: translateY(-2px);
}

.newsletter-disclaimer {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Sidebar Links */
.sidebar-links {
    list-style: none;
}

.sidebar-links li {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-links li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.sidebar-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.sidebar-links a:hover {
    color: var(--primary-color);
}

/* =========================================
   Article Detail Page Specific Styles
   ========================================= */

.article-detail-page {
    padding-top: var(--spacing-xl);
}

/* Article Header */
.article-header {
    margin-bottom: var(--spacing-xl);
}

.article-meta-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.article-category-badge {
    background-color: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius-sm);
    letter-spacing: 0.025em;
}

.article-reading-time {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.article-title {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.article-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
    max-width: 800px;
}

.article-author-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-details {
    flex: 1;
}

.author-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.author-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.article-meta-details {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.article-updated {
    font-style: italic;
}

/* Article Featured Image */
.article-featured-image {
    margin: var(--spacing-xl) 0;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.article-featured-image .image-caption {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--background-gray);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    font-style: italic;
}

/* Article Content */
.article-content {
    margin-bottom: var(--spacing-xxl);
}

.article-intro {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-primary);
    padding: var(--spacing-lg);
    background-color: var(--background-gray);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-xl);
}

/* Table of Contents */
.table-of-contents {
    background-color: var(--background-gray);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.toc-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.toc-nav {
    margin-top: var(--spacing-md);
}

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

.toc-item {
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-md);
}

.toc-item:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.toc-link {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    font-size: 0.9375rem;
}

.toc-link:hover {
    color: var(--primary-color);
}

/* Article Body */
.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-primary);
}

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

.article-body h2 {
    font-size: 1.75rem;
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.article-body h3 {
    font-size: 1.5rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-body p {
    margin-bottom: var(--spacing-lg);
}

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

.article-body li {
    margin-bottom: var(--spacing-sm);
}

.article-body ul li:before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    display: inline-block;
    width: 1em;
    margin-left: -1em;
}

.article-body ol {
    counter-reset: item;
}

.article-body ol li {
    counter-increment: item;
}

.article-body ol li:before {
    content: counter(item) ".";
    color: var(--primary-color);
    font-weight: bold;
    display: inline-block;
    width: 1.5em;
    margin-left: -1.5em;
}

/* Article Quote */
.article-quote {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--primary-color);
}

.article-quote blockquote {
    margin: 0;
    padding: 0;
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--text-primary);
}

.article-quote cite {
    display: block;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    font-style: normal;
}

/* Article Inline Image */
.article-inline-image {
    margin: var(--spacing-xl) 0;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.article-inline-image figcaption {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--background-gray);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    font-style: italic;
}

/* Article Note & Alert */
.article-note,
.article-alert {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.article-note {
    background-color: var(--primary-light);
    border: 1px solid var(--primary-color);
}

.article-alert {
    background-color: #fef3c7;
    border: 1px solid #f59e0b;
}

.note-icon,
.alert-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.8);
}

.note-content h4,
.alert-content h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.note-content p,
.alert-content p {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 0;
}

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

.tags-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

.article-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--background-gray);
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

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

/* Article Meta Info */
.article-meta-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background-color: var(--background-gray);
    border-radius: var(--border-radius-lg);
}

.meta-info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.meta-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-value {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Article Share */
.article-share {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background-color: var(--background-gray);
    border-radius: var(--border-radius-lg);
}

.share-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

.share-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    font-size: 0.9375rem;
}

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

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

.share-button.facebook {
    background-color: #4267b2;
    color: white;
}

.share-button.copy-link {
    background-color: var(--background-gray);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.share-button.copy-link:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.share-text {
    margin-top: 1px;
}

/* Article Author Bio */
.article-author-bio {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl);
    background-color: var(--background-gray);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--primary-color);
}

.author-bio-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

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

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

.author-bio-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.author-bio-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.author-bio-text {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.author-bio-links {
    display: flex;
    gap: var(--spacing-lg);
}

.author-bio-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
}

.author-bio-link:hover {
    text-decoration: underline;
}

/* Comments Section */
.comments-section {
    margin: var(--spacing-xxl) 0;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.comments-header {
    margin-bottom: var(--spacing-xl);
}

.comments-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.comments-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Comment Form */
.comment-form-container {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.comment-form-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.comment-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

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

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast);
    background-color: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 0.9375rem;
    resize: vertical;
    transition: border-color var(--transition-fast);
    background-color: white;
    min-height: 120px;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.btn-submit-comment {
    padding: 0.75rem 2rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    font-size: 0.9375rem;
}

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

.form-disclaimer {
    font-size: 0.75rem;
    color: var(--text-secondary);
    max-width: 300px;
}

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

.comment {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.comment-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.comment-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.comment-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-author {
    flex: 1;
}

.comment-author-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.comment-author-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.comment-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.comment-body {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.comment-body p {
    margin-bottom: var(--spacing-sm);
}

.comment-body p:last-child {
    margin-bottom: 0;
}

.comment-actions {
    display: flex;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.comment-reply,
.comment-like {
    background: none;
    border: none;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    transition: color var(--transition-fast);
}

.comment-reply:hover {
    color: var(--primary-color);
}

.comment-like:hover {
    color: #ef4444;
}

/* Comments Pagination */
.comments-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.comments-pagination .pagination-btn {
    padding: 0.75rem 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: white;
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

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

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

.comments-pagination .pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-md);
    background-color: white;
    color: var(--text-primary);
    font-weight: 500;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    cursor: pointer;
    font-size: 0.875rem;
}

.comments-pagination .pagination-number:hover {
    border-color: var(--border-color);
}

.comments-pagination .pagination-number.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.related-header {
    margin-bottom: var(--spacing-xl);
}

.related-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.related-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.related-article-card {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background-color: white;
    border: 1px solid var(--border-color);
}

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

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

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

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

.related-article-category {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background-color: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: var(--border-radius-sm);
}

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

.related-article-title {
    font-size: 1.125rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

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

.related-article-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* =========================================
   Footer
   ========================================= */

.footer {
    background-color: var(--background-dark);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-description {
    color: #9ca3af;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #374151;
    color: white;
    transition: background-color var(--transition-fast);
}

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

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-col-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    color: white;
}

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

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

.footer-links a {
    color: #9ca3af;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-subscribe-text {
    color: #9ca3af;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

.form-group {
    display: flex;
    gap: var(--spacing-xs);
}

.form-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid #374151;
    border-radius: var(--border-radius-md);
    background-color: #1f2937;
    color: white;
    font-size: 0.9375rem;
}

.form-input::placeholder {
    color: #9ca3af;
}

.form-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

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

.footer-bottom {

    padding: 20px 0;
}

.footer-bottom-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

.copyright {
    color: #9ca3af;
    font-size: 0.875rem;
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-legal a {
    color: #9ca3af;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: white;
}

/* =========================================
   Back to Top Button
   ========================================= */

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

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* =========================================
   Utility Classes
   ========================================= */

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

/* =========================================
   Responsive Design
   ========================================= */

@media (max-width: 1200px) {

    .featured-grid,
    .categories-grid,
    .updates-grid,
    .analysis-grid,
    .articles-grid,
    .list-main .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

@media (max-width: 768px) {
    .header {
        position: absolute;
        padding: 5px 0;
    }

    .logo {
        font-size: 1.4rem;
    }

    .hamburger-menu {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 52px;
        left: 0;
        right: 0;
        background-color: white;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: 999;
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: var(--spacing-sm) 0;
        font-size: 1.125rem;
    }

    .main-content {
        margin-top: 40px;
    }

    .section {
        padding: 20px 0;
    }

    .list-layout {
        display: block;
    }

    .featured-grid,
    .categories-grid,
    .updates-grid,
    .analysis-grid,
    .articles-grid,
    .list-main .articles-grid,
    .related-articles-grid {
        grid-template-columns: 1fr;
    }

    .list-controls {
        flex-direction: column;
        gap: var(--spacing-lg);
        align-items: stretch;
    }

    .filter-controls {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .custom-select {
        width: 100%;
    }

    .view-toggle {
        align-self: flex-end;
    }

    .sort-controls {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .sort-options {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .view-toggle {
        align-self: flex-end;
    }

    .blog-box {
        display: block;
    }

    .featured-img {
        width: 100%;
        height: 260px;
    }

    .blog-meta.big-meta h3 {
        margin: 10px 0;
    }

    .category-tabs .tabs-container {
        justify-content: center;
    }

    .pagination-controls,
    .comments-pagination {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .comment-form .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .form-actions {
        flex-direction: column;
        align-items: flex-start;
    }

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

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

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .article-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .article-author-info {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        padding: 10px 0;
    }

    .article-author-info .author-avatar {
        width: 56px;
        height: 56px;
    }

    .article-author-bio {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .author-bio-links {
        justify-content: center;
    }

    .share-buttons {
        justify-content: center;
    }

    .article-meta-info {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }

    .featured-card-image {
        height: 200px;
    }

    .vertical-featured .featured-card-image {
        height: 150px;
    }

    .update-card-image {
        height: 150px;
    }

    .article-card-image {
        height: 150px;
        position: relative;
    }

    .article-featured-image {
        height: 200px;
    }

    .pagination,
    .comments-pagination {
        flex-wrap: wrap;
    }

    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 44px;
        height: 44px;
    }

    .article-title {
        font-size: 1.45rem;
    }

    .article-subtitle {
        font-size: 1rem;
    }

    .article-body {
        font-size: 1rem;
    }

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

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

    .share-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .share-button {
        justify-content: center;
    }

    .author-bio-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .page-title {
        font-size: 2rem;
    }

    .category-icon-large {
        width: 64px;
        height: 64px;
        padding: var(--spacing-sm);
    }

    .category-icon-large svg {
        width: 32px;
        height: 32px;
    }

    .tab {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .pagination-numbers,
    .comments-pagination .pagination-numbers {
        flex-wrap: wrap;
        justify-content: center;
    }
}