/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a73e8;
    --secondary-color: #34a853;
    --text-color: #202124;
    --text-secondary: #5f6368;
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa;
    --border-color: #e8eaed;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

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

/* Header */
.header {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: block;
    margin-top: -0.25rem;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    font-weight: 500;
    color: var(--text-color);
    padding: 0.5rem 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.main-nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: var(--bg-secondary);
    padding: 2rem 0;
    margin-bottom: 3rem;
}

.hero-slide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content .category {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.hero-content h2 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero-content time {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.hero-image {
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow-hover);
}

.hero-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.hero-slide:hover .hero-image img {
    transform: scale(1.05);
}

/* Main Content */
.main-content {
    margin-bottom: 4rem;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

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

/* News Cards */
.news-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.news-image {
    overflow: hidden;
    border-radius: 8px;
}

.news-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.news-content .category {
    display: inline-block;
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.news-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

.news-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.news-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.news-meta time {
    display: flex;
    align-items: center;
}

.news-meta time::before {
    content: '📅';
    margin-right: 0.25rem;
}

.author::before {
    content: '✍️';
    margin-right: 0.25rem;
}

/* Sidebar */
.sidebar-section {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
}

.trending-list {
    counter-reset: trending;
}

.trending-list li {
    counter-increment: trending;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 2rem;
}

.trending-list li::before {
    content: counter(trending);
    position: absolute;
    left: 0;
    top: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.trending-list a {
    display: block;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

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

.category-list {
    list-style: none;
}

.category-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.category-list li:last-child {
    border-bottom: none;
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-list a::after {
    content: '→';
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
}

.category-list a:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

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

.newsletter p {
    margin-bottom: 1rem;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.newsletter-form input {
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
}

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

.newsletter-form input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.2);
}

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-primary:hover {
    background: #1557b0;
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.load-more {
    text-align: center;
    margin-top: 3rem;
}

/* Analytics Section */
.analytics-section {
    background: var(--bg-secondary);
    padding: 4rem 0;
    margin-bottom: 4rem;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.analytics-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.analytics-image {
    height: 250px;
    overflow: hidden;
}

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

.analytics-content {
    padding: 1.5rem;
}

.analytics-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.analytics-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.author-name {
    display: block;
    font-weight: 600;
}

.author-title {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    padding: 0.25rem 0;
}

.footer-section a {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-slide {
        grid-template-columns: 1fr;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .news-card {
        grid-template-columns: 1fr;
    }
    
    .news-image {
        height: 200px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.75rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: white;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    transition: left 0.3s ease;
    z-index: 1001;
    padding: 2rem;
}