/* ========================================================== 
   Global Styles and Variables - MODERN THEME
   ========================================================== */
:root {
  /* Colors */
  --primary-color: #0a1f44;
  --secondary-color: #1e3a8a;
  --accent-color: #0ea5e9;
  --background-color: #f8fafc;
  --card-background: #ffffff;
  --text-color: #0f172a;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border-color: #e2e8f0;
  --hover-color: #0284c7;
  --light-gray: #f1f5f9;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 20px;
  
  /* Transition */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadow */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--font-size-2xl);
  letter-spacing: -0.025em;
}

h3 {
  font-size: var(--font-size-xl);
  letter-spacing: -0.025em;
}

h4 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: 0 !important;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-md);
}

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

/* Buttons */
button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  transition: all var(--transition-fast);
}

/* Lists */
ul, ol {
  list-style: none;
}

/* ========================================================== 
   Header Styles - MODERN THEME
   ========================================================== */
.site-header {
  background-color: var(--card-background);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 80px;
  display: flex;
  align-items: center;
}

.header-main {
  width: 100%;
}

.header-main .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo-container {
  display: flex;
  align-items: center;
}

.site-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  margin: 0;
  color: var(--primary-color);
  letter-spacing: -0.025em;
}

/* Desktop Navigation */
.main-navigation {
  display: none;
}

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

.nav-item a {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
  padding: var(--spacing-xs) 0;
  transition: color var(--transition-fast);
}

.nav-item a:hover {
  color: var(--accent-color);
}

.nav-item a.active {
  color: var(--accent-color);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: block;
}

.mobile-toggle-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--light-gray);
  color: var(--text-color);
  font-size: var(--font-size-lg);
}

.mobile-toggle-button:hover {
  background-color: var(--border-color);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background-color: var(--card-background);
  box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-lg);
  transition: right var(--transition-normal);
  z-index: 1100;
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: var(--font-size-xl);
  color: var(--text-color);
}

.mobile-navigation {
  margin-top: var(--spacing-xl);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-nav-item a {
  color: var(--text-color);
  font-weight: 500;
  font-size: var(--font-size-lg);
  display: block;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.mobile-nav-item a.active {
  color: var(--accent-color);
}

/* Overlay when mobile menu is open */
.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ========================================================== 
   Main Content Styles - MODERN THEME
   ========================================================== */
.main-content {
  padding: var(--spacing-lg) 0;
}

/* Featured Story */
.featured-story {
  margin-bottom: var(--spacing-xl);
}

.featured-article {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  background-color: var(--card-background);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.featured-image {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
}

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

.featured-image:hover img {
  transform: scale(1.02);
}

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

.category-badge {
  display: inline-block;
  padding: 0.35em 0.75em;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--accent-color);
  color: white;
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-sm);
}

.featured-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.featured-title a {
  color: var(--primary-color);
  transition: color var(--transition-fast);
}

.featured-title a:hover {
  color: var(--accent-color);
}

.featured-excerpt {
  font-size: var(--font-size-lg);
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
}

.article-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-lighter);
}

.article-meta .author {
  font-weight: 500;
}

/* News Grid */
.news-grid {
  margin-bottom: var(--spacing-xl);
}

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

.section-title {
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-xl);
  position: relative;
  padding-bottom: var(--spacing-xs);
}

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

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

.news-article {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background-color: var(--card-background);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.news-article:hover {
  box-shadow: var(--shadow-md);
}

.article-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

.news-article:hover .article-image img {
  transform: scale(1.02);
}

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

.article-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

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

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

.article-excerpt {
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

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

/* Ad Placeholder */
.ad-placeholder {
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  text-align: center;
  border: 1px dashed var(--border-color);
}

.ad-content {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--card-background);
  border-radius: var(--border-radius-sm);
  font-weight: 500;
  color: var(--text-lighter);
}

/* Trending News */
.trending-news {
  background-color: var(--card-background);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-xs);
}

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

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

.trending-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.trending-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: var(--light-gray);
  color: var(--accent-color);
  font-weight: 700;
  border-radius: 50%;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.trending-title {
  font-weight: 500;
  color: var(--text-color);
  transition: color var(--transition-fast);
}

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

/* Editor's Picks */
.editors-picks {
  background-color: var(--card-background);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

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

.pick-article {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.pick-image {
  width: 80px;
  height: 60px;
  overflow: hidden;
  flex-shrink: 0;
}

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

.pick-content {
  flex: 1;
}

.pick-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.pick-title a {
  color: var(--text-color);
  transition: color var(--transition-fast);
}

.pick-title a:hover {
  color: var(--accent-color);
}

.pick-date {
  font-size: var(--font-size-sm);
  color: var(--text-lighter);
}

/* Newsletter Signup */
.newsletter-signup {
  background-color: var(--primary-color);
  color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}

.newsletter-signup .sidebar-title {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.newsletter-signup .sidebar-title::after {
  background-color: var(--accent-color);
}

.newsletter-signup p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
}

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

.newsletter-form input {
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-base);
  font-family: inherit;
}

.newsletter-form button {
  padding: var(--spacing-sm);
  background-color: var(--accent-color);
  color: white;
  border: none;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

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

/* Featured Categories */
.featured-categories {
  margin-bottom: var(--spacing-xl);
}

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

.category-block {
  background-color: var(--card-background);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.category-block:hover {
  box-shadow: var(--shadow-md);
}

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

.category-title a {
  color: var(--primary-color);
  transition: color var(--transition-fast);
}

.category-title a:hover {
  color: var(--accent-color);
}

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

.category-link {
  color: var(--text-color);
  font-weight: 500;
  transition: color var(--transition-fast);
  display: block;
  padding: 0;
  border-bottom: 1px solid var(--border-color);
}

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

.category-link:hover {
  color: var(--accent-color);
}

/* ========================================================== 
   Footer Styles - MODERN THEME
   ========================================================== */
.site-footer {
  background-color: var(--primary-color);
  color: white;
  padding: 5px 0;
  height: auto;
}

.footer-bottom {
  text-align: center;
}

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

/* ========================================================== 
   Category Page Styles - MODERN THEME
   ========================================================== */
.breadcrumb-section {
  background-color: var(--light-gray);
  padding: var(--spacing-sm) 0;
  margin-bottom: var(--spacing-lg);
}

.breadcrumb {
  display: flex;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.breadcrumb-item a {
  color: var(--text-light);
}

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

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

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin-left: var(--spacing-sm);
  color: var(--text-lighter);
}

.category-content {
  margin-bottom: var(--spacing-xl);
}

.category-header {
  margin-bottom: var(--spacing-lg);
}

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

.category-description {
  color: var(--text-light);
  font-size: var(--font-size-lg);
}

.category-featured {
  margin-bottom: var(--spacing-xl);
}

/* ========================================================== 
   Detail Page Styles - MODERN THEME
   ========================================================== */
.article-content {
  margin-bottom: var(--spacing-xl);
}

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

.article-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.article-share {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  margin-top: var(--spacing-md);
}

.article-share a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--light-gray);
  color: var(--text-color);
  border-radius: 50%;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.article-share a:hover {
  background-color: var(--accent-color);
  color: white;
}

.article-featured-image {
  margin-bottom: var(--spacing-lg);
}

.article-featured-image img {
  width: 100%;
  border-radius: var(--border-radius-lg);
}

.image-caption {
  font-size: var(--font-size-sm);
  color: var(--text-lighter);
  font-style: italic;
  text-align: center;
  margin-top: var(--spacing-xs);
}

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

.article-body p {
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-base);
  line-height: 1.8;
}

.article-body h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.article-body blockquote {
  border-left: 4px solid var(--accent-color);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: var(--text-light);
}

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

.article-body blockquote footer {
  font-size: var(--font-size-sm);
  color: var(--text-lighter);
}

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

.tag {
  display: inline-block;
  padding: 0.35em 0.75em;
  background-color: var(--light-gray);
  color: var(--text-color);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

/* ========================================================== 
   Responsive Styles - MODERN THEME
   ========================================================== */

/* Tablet View (768px and up) */
@media (min-width: 768px) {
  /* Header */
  .main-navigation {
    display: block;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  /* Featured Story */
  .featured-article {
    flex-direction: row;
  }
  
  .featured-image {
    width: 50%;
    height: 350px;
  }
  
  .featured-content {
    width: 50%;
    padding: var(--spacing-lg);
  }
  
  /* News Grid */
  .news-article {
    flex-direction: row;
  }
  
  .article-image {
    width: 40%;
    height: auto;
  }
  
  .article-content {
    width: 60%;
    padding: var(--spacing-md);
  }
  
  /* Categories */
  .categories-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop View (1200px and up) */
@media (min-width: 1200px) {
  /* News Grid */
  .grid-content {
    flex-direction: row;
  }
  
  .main-column {
    width: 70%;
  }
  
  .sidebar-column {
    width: 30%;
  }
  
  /* Categories */
  .categories-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Featured Story */
  .featured-image {
    height: 400px;
  }
}