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

:root {
    /* Color Palette - Modern Tech Theme */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #7c3aed;
    --accent: #06b6d4;
    --dark: #1e293b;
    --dark-light: #334155;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --gray-lighter: #f8fafc;
    --white: #ffffff;

    /* Typography */
    --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

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

    /* 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-stack);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    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-lg);
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

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);
    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;
}

.section-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section-title.center {
    text-align: center;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--accent));
    border-radius: var(--radius-sm);
}

.section-title.center::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-subtitle {
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
    font-size: 1.125rem;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-icon {
    margin-right: var(--spacing-sm);
    font-size: 1.8rem;
}

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

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

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

.nav-links a {
    color: var(--dark);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: var(--spacing-md);
    right: var(--spacing-md);
    height: 2px;
    background-color: var(--primary);
    border-radius: var(--radius-sm);
}

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

.btn-subscribe {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-normal);
}

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

.search-toggle {
    color: var(--dark);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-toggle:hover {
    background-color: var(--gray-lighter);
    color: var(--primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--dark);
    transition: all var(--transition-normal);
}

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

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

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

/* ===== Announcement Bar ===== */
.announcement {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: var(--white);
    padding: var(--spacing-sm) 0;
    margin-top: 70px;
}

.announcement .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.announcement-tag {
    background-color: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.announcement-text {
    font-weight: 500;
    flex: 1;
    text-align: center;
}

.announcement-link {
    color: var(--white);
    font-weight: 600;
    white-space: nowrap;
}

.announcement-link:hover {
    text-decoration: underline;
}

/* ===== Headline Section ===== */
.headline-section {
    margin: var(--spacing-2xl) 0;
}

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

.recommended-title {
    margin-top: 120px;
}

.view-all {
    font-weight: 500;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.view-all::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.view-all:hover::after {
    transform: translateX(4px);
}

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

.headline-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

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

.card-image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    position: relative;
}

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

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

.card-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

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

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

.card-excerpt {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-light);
}

.author,
.date,
.read-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ===== Category Section ===== */
.category-section {
    margin: var(--spacing-3xl) 0;
}

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

.category-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-light);
    transition: all var(--transition-normal);
    text-align: center;
    display: block;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--white), var(--gray-lighter));
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

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

.category-desc {
    color: var(--gray);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    min-height: 40px;
}

.category-count {
    display: inline-block;
    background-color: var(--gray-lighter);
    color: var(--gray);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===== Latest News Section ===== */
.latest-section {
    margin: var(--spacing-3xl) 0;
}

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

.filter-label {
    color: var(--gray);
    font-size: 0.875rem;
}

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

.dropdown-toggle {
    background-color: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--dark);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 140px;
    transition: all var(--transition-fast);
}

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

.dropdown-arrow {
    font-size: 0.75rem;
    margin-left: auto;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-xs);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--dark);
    transition: all var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item.active {
    background-color: var(--gray-lighter);
    color: var(--primary);
}

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

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

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

.latest-card.horizontal {
    display: flex;
}

.latest-card.compact {
    grid-column: span 2;
    padding: var(--spacing-xl);
}

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

.latest-card.horizontal .card-image {
    width: 40%;
    height: auto;
    flex-shrink: 0;
}

.latest-card.horizontal .card-content {
    width: 60%;
}

.card-tag {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--secondary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.latest-card .card-category {
    position: static;
    background: none;
    color: var(--primary);
    padding: 0;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
}

.latest-card .card-title {
    font-size: 1.25rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tag {
    background-color: var(--gray-lighter);
    color: var(--gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag:hover {
    background-color: var(--primary);
    color: var(--white);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.pagination-item,
.pagination-next {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-md);
    border-radius: var(--radius-md);
    background-color: var(--white);
    color: var(--dark);
    font-weight: 500;
    border: 1px solid var(--gray-light);
    transition: all var(--transition-fast);
}

.pagination-item:hover,
.pagination-item.active,
.pagination-next:hover {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

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

/* ===== Featured Reports Section ===== */
.featured-section {
    margin: var(--spacing-3xl) 0;
}

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

.featured-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    background: linear-gradient(var(--white), var(--white)) padding-box,
        linear-gradient(135deg, var(--primary), var(--accent)) border-box;
}

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

.featured-card .card-image {
    height: 280px;
}

.card-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

/* ===== Topics Section ===== */
.topics-section {
    margin: var(--spacing-3xl) 0;
}

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

.topic-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary);
    transition: all var(--transition-normal);
}

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

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

.topic-desc {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.topic-stats {
    display: flex;
    gap: var(--spacing-lg);
}

.stat {
    font-size: 0.875rem;
    color: var(--gray);
}

.stat.trending {
    color: #10b981;
    font-weight: 600;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--dark);
    color: var(--white);
    margin-top: var(--spacing-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-col:first-child {
    grid-column: span 1;
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-description {
    color: var(--gray-light);
    margin: var(--spacing-md) 0;
    font-size: 0.875rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: all var(--transition-fast);
}

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

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

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary);
    border-radius: var(--radius-sm);
}

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

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

.footer-links a {
    color: var(--gray-light);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

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

.footer-text {
    color: var(--gray-light);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

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

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

.form-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 0.875rem;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

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

.form-button {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.form-notice {
    font-size: 0.75rem;
    color: var(--gray);
}

.footer-contact {
    font-size: 0.875rem;
    color: var(--gray-light);
}

.footer-contact a {
    color: var(--gray-light);
    text-decoration: underline;
}

.footer-contact a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
    font-size: 0.875rem;
    color: var(--gray);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.copyright p {
    margin: 0;
}

.copyright a {
    color: var(--gray-light);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-bottom-links a {
    color: var(--gray);
}

.footer-bottom-links a:hover {
    color: var(--white);
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-4px);
}

/* ===== List Page Styles ===== */
.list-page {
    margin-top: 80px;
}

.breadcrumb {
    background-color: var(--gray-lighter);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--gray-light);
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray);
    font-size: 0.875rem;
}

.breadcrumb-item a {
    color: var(--gray);
    transition: color var(--transition-fast);
}

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

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

.breadcrumb-separator {
    color: var(--gray-light);
}

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

.page-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

.page-description {
    color: var(--gray);
    font-size: 1.125rem;
    max-width: 800px;
    line-height: 1.6;
}

.category-filter {
    display: inline-flex;
    background-color: var(--gray-lighter);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
}

.category-filter-item {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    color: var(--gray);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.category-filter-item:hover {
    color: var(--primary);
    background-color: rgba(37, 99, 235, 0.1);
}

.category-filter-item.active {
    background-color: var(--primary);
    color: var(--white);
}

.content-layout {
    display: grid;
    grid-template-columns: 66% 30%;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

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

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

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

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



.article-card.horizontal .card-image {
    aspect-ratio: 4 / 3;
    flex-shrink: 0;
}

.article-card.horizontal .card-content {
    flex: 1;
}

.article-card .card-image {

    overflow: hidden;
    position: relative;
}

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

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

.article-card .card-tag {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-card .card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

.article-card .card-title a {
    color: var(--dark);
}

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

.article-card .card-excerpt {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.article-card .card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-light);
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.sidebar-widget {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.widget-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-lighter);
    position: relative;
}

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

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

.recommended-item {
    display: flex;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-lighter);
}

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

.recommended-item .item-image {
    width: 80px;
    height: 60px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

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

.recommended-item .item-content {
    flex: 1;
}

.recommended-item .item-title {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

.recommended-item .item-title a {
    color: var(--dark);
}

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

.recommended-item .item-meta {
    font-size: 0.75rem;
    color: var(--gray);
}

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

.tag-item {
    display: inline-block;
    background-color: var(--gray-lighter);
    color: var(--gray);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

.tag-item.large {
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-lg);
}

.tag-item.medium {
    font-size: 0.875rem;
    padding: var(--spacing-xs) var(--spacing-md);
}

.tag-item.small {
    font-size: 0.75rem;
    padding: 2px var(--spacing-sm);
}

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

.popular-item {
    counter-increment: popular-counter;
    padding-left: calc(var(--spacing-xl) + var(--spacing-md));
    position: relative;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-lighter);
}

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

.popular-item::before {
    content: counter(popular-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: var(--spacing-xl);
    height: var(--spacing-xl);
    background-color: var(--gray-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--gray);
    font-size: 0.875rem;
}

.popular-item:nth-child(1)::before,
.popular-item:nth-child(2)::before,
.popular-item:nth-child(3)::before {
    background-color: var(--primary);
    color: var(--white);
}

.popular-item .item-title {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

.popular-item .item-title a {
    color: var(--dark);
}

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

.popular-item .item-meta {
    font-size: 0.75rem;
    color: var(--gray);
}

.pagination-container {
    margin: 30px 0;
}

.list-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
}

.pagination-prev,
.pagination-next {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;

    padding: 0 var(--spacing-lg);
    border-radius: var(--radius-md);
    background-color: var(--white);
    color: var(--dark);
    font-weight: 500;
    border: 1px solid var(--gray-light);
    transition: all var(--transition-fast);
}

.pagination-prev:hover,
.pagination-next:hover {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}




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

.pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--white);
    color: var(--dark);
    font-weight: 500;
    border: 1px solid var(--gray-light);
    transition: all var(--transition-fast);
}

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

.pagination-ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    color: var(--gray);
}

.subscribe-widget {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

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

.subscribe-widget .widget-title::after {
    background-color: var(--white);
    left: 50%;
    transform: translateX(-50%);
}

.subscribe-widget p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

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

.widget-form .form-input {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 0.875rem;
}

.widget-form .form-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.widget-form .form-button {
    background-color: var(--white);
    color: var(--primary);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.widget-form .form-button:hover {
    background-color: var(--gray-lighter);
    transform: translateY(-2px);
}

/* ===== Detail Page Styles ===== */
.detail-page {
    margin-top: 80px;
}

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

.article-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

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

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-light);
}

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

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    background-color: var(--gray-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-details h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.author-details p {
    font-size: 0.875rem;
    color: var(--gray);
    margin: 0;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--gray);
    font-size: 0.875rem;
}

.meta-icon {
    color: var(--primary);
}

.article-featured-image {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

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

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: var(--white);
    padding: var(--spacing-md);
    font-size: 0.875rem;
    text-align: center;
}

.article-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--dark-light);
}

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

.code-block {
    background-color: var(--dark);
    color: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    overflow-x: auto;
    font-family: monospace;
    font-size: 0.875rem;
    line-height: 1.5;
}

.article-tags {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--gray-light);
    border-bottom: 1px solid var(--gray-light);
}

.tags-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray);
}

.article-share {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-lg);
    background-color: var(--gray-lighter);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.share-title {
    font-size: 1rem;
    color: var(--dark);
    margin: 0;
}

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

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--white);
    color: var(--dark);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

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

.share-button.twitter:hover {
    background-color: #1DA1F2;
    color: white;
}

.share-button.facebook:hover {
    background-color: #1877F2;
    color: white;
}

.share-button.linkedin:hover {
    background-color: #0077B5;
    color: white;
}

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

.author-bio {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl);
    background-color: var(--gray-lighter);
    border-radius: var(--radius-lg);
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.author-bio .author-avatar {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.author-bio h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.author-bio p {
    color: var(--gray);
    margin: 0;
}

.comments-section {
    margin: var(--spacing-3xl) 0;
}

.comments-count {
    font-size: 1rem;
    color: var(--gray);
    font-weight: 400;
}

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

.comment-item {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--gray-light);
}

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

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

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

.comment-date {
    color: var(--gray);
    font-size: 0.875rem;
}

.comment-content {
    color: var(--dark-light);
    line-height: 1.6;
}

.comment-reply {
    margin-top: var(--spacing-md);
    padding-left: var(--spacing-xl);
    border-left: 2px solid var(--gray-light);
}

.comment-form {
    background-color: var(--gray-lighter);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--dark);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

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

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-submit {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.form-notice {
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: var(--spacing-md);
}

.related-articles {
    margin: var(--spacing-3xl) 0;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .headline-grid {
        grid-template-columns: 1fr;
    }

    .headline-card.featured {
        grid-column: span 1;
    }

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

    .latest-grid {
        grid-template-columns: 1fr;
    }

    .latest-card.horizontal {
        grid-column: span 1;
        flex-direction: column;
    }

    .latest-card.horizontal .card-image {
        width: 100%;
        height: 200px;
    }

    .latest-card.horizontal .card-content {
        width: 100%;
    }

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

    .topics-grid {
        grid-template-columns: 1fr;
    }

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

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

    .article-card.horizontal {
        flex-direction: column;
    }

    .article-card.horizontal .card-image {
        width: 100%;
        height: 200px;
    }

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

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

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

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-2xl) var(--spacing-xl);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-normal);
        z-index: 1000;
        display: none;
    }

    .nav-menu.active {
        right: 0;
        display: block;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid var(--gray-light);
    }

    .nav-links a.active::after {
        display: none;
    }

    .nav-links a.active {
        color: var(--primary);
        font-weight: 600;
    }

    .nav-cta {
        flex-direction: column;
        width: 100%;
        margin-top: var(--spacing-xl);
    }

    .hamburger {
        display: flex;
    }

    .announcement .container {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .pagination {
        display: block;
    }

    .pagination a,
    .pagination span {
        display: inline-block;
        margin: 5px;
        line-height: 40px;
    }

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

    .headline-section {
        margin: 2rem 0;
    }

    .recommended-title {
        margin-top: 65px;
    }

    .section-filters {
        width: 100%;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

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

    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 40px;
        height: 40px;
    }

    .breadcrumb {
        margin-bottom: 20px;
    }

    .list-page,
    .detail-page {
        margin-top: 56px;
    }

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

    .category-filter {
        flex-wrap: wrap;
    }

    .list-pagination {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination-prev,
    .pagination-next {
        min-width: 120px;
        order: 1;
    }

    .pagination-numbers {
        order: 2;
        width: 100%;
        justify-content: center;
        margin: var(--spacing-md) 0;
    }

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

    .article-subtitle {
        font-size: 1.125rem;
    }

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

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

    .articles-grid {
        grid-template-columns: 1fr;
    }

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

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

    .latest-card.horizontal .card-image {
        width: 100%;
        height: auto;
        aspect-ratio: 4 / 3;
    }
    .breadcrumb{
        margin-top: 50px;
    }
}

@media (max-width: 480px) {
    .card-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .form-group {
        flex-direction: column;
    }

    .form-button {
        width: 100%;
    }

    .tags-list {
        justify-content: center;
    }

    .recommended-item {
        flex-direction: column;
    }

    .recommended-item .item-image {
        width: 100%;
        height: 120px;
    }

    .page-header {
        margin-bottom: 20px;
    }

    .article-header {
        margin: 4rem 0 0;
    }

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

}