/* Design System Variables */
:root {
  /* Colors */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --secondary: #10b981;
  --accent: #f59e0b;
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  
  /* Text Colors */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-dark: #0f172a;
  --bg-gradient: linear-gradient(to right, var(--primary), var(--primary-dark));
  
  /* Border Colors */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  
  /* Shadow */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Header Variables */
  --header-height: 80px;
  --header-height-mobile: 64px;
  --glass: rgba(255, 255, 255, 0.95);
  --text: var(--text-primary);
  --primary-gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

/* Accessibility Improvements */
:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

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

.skip-to-content {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  z-index: 9999;
  transition: top 0.3s;
}

.skip-to-content:focus {
  top: var(--space-4);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

h1 {
  font-size: 3rem;
  background: var(--bg-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 2.25rem;
}

h3 {
  font-size: 1.75rem;
}

p {
  margin-bottom: var(--space-4);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  padding: 0 var(--space-8);
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 55px;
  width: auto;
  transition: transform 0.3s ease;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  z-index: 1001;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-menu a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  font-size: 1rem;
}

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

.nav-menu .cta {
  background: var(--primary-gradient);
  color: white;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
}

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

/* Mobile Header Styles */
@media (max-width: 768px) {
  header {
    height: var(--header-height-mobile);
    padding: 0 var(--space-4);
  }
  
  .logo img {
    height: 42px;
  }
  
  .menu-toggle {
    display: block;
    width: 24px;
    height: 24px;
    position: relative;
    margin-left: auto;
  }

  .hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--text);
    margin: 10px 0;
    transition: all 0.3s ease;
  }

  .hamburger::before,
  .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text);
    left: 0;
    transition: all 0.3s ease;
  }

  .hamburger::before {
    top: -8px;
  }

  .hamburger::after {
    bottom: -8px;
  }

  .menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
  }

  .menu-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height-mobile);
    left: 0;
    right: 0;
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--space-4);
    flex-direction: column;
    gap: var(--space-4);
    box-shadow: var(--shadow-md);
    display: none;
    animation: slideDown 0.3s ease;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    width: 100%;
    text-align: center;
    padding: var(--space-3);
  }

  .nav-menu .cta {
    width: 100%;
    margin-top: var(--space-2);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Blog Header */
.blog-header {
  padding: var(--space-16) 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  margin-top: 64px;
  position: relative;
  overflow: hidden;
}

.blog-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.4));
  z-index: 1;
}

.blog-header .container {
  position: relative;
  z-index: 2;
}

.blog-header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-6);
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  background: none;
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
}

.blog-header p {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: var(--space-8);
  color: rgba(255, 255, 255, 0.95);
  max-width: 800px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.header-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  margin-bottom: var(--space-6);
  color: white;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.header-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-label {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

/* Featured Section */
.featured-section {
  padding: var(--space-16) 0;
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

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

.featured-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-8);
}

.featured-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.featured-card.primary {
  display: grid;
  grid-template-rows: auto 1fr;
}

.featured-card .card-image {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  overflow: hidden;
}

.featured-card .card-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.featured-card .card-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.featured-card.primary .card-content {
  padding: var(--space-8);
}

.content-badge {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--primary);
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.featured-card h3 {
  font-size: 1.875rem;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
  line-height: 1.3;
}

.featured-card h4 {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
  line-height: 1.3;
}

.featured-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  font-size: 1.125rem;
  line-height: 1.6;
}

.featured-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  margin-top: auto;
  transition: gap 0.3s ease;
}

.featured-card .card-link:hover {
  gap: var(--space-4);
}

.featured-card .card-link svg {
  transition: transform 0.3s ease;
}

.featured-card .card-link:hover svg {
  transform: translateX(4px);
}

.featured-secondary {
  display: grid;
  gap: var(--space-8);
}

.featured-card.secondary {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  align-items: stretch;
}

.featured-card.secondary .card-image {
  padding-bottom: 100%; /* Square aspect ratio */
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
  .featured-grid {
    grid-template-columns: 1fr;
  }
  
  .featured-card.secondary {
    grid-template-columns: 1fr;
  }
  
  .featured-card.secondary .card-image {
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
  }
}

@media (max-width: 640px) {
  .featured-section {
    padding: var(--space-8) 0;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .featured-card h3 {
    font-size: 1.5rem;
  }
  
  .featured-card h4 {
    font-size: 1.25rem;
  }
  
  .featured-card p {
    font-size: 1rem;
  }
}

/* Topics Section */
.topics-section {
  padding: var(--space-16) 0;
  background: var(--bg-secondary);
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
}

.topic-card {
  background: var(--bg-primary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.topic-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.topic-icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
}

/* Latest Posts */
.latest-posts {
  padding: var(--space-16) 0;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.blog-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.premium-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 1;
}

.blog-card-content {
  padding: var(--space-6);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
}

.category {
  color: var(--primary);
  font-weight: 500;
}

.read-time {
  color: var(--text-secondary);
}

.blog-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
  line-height: 1.4;
}

.blog-card h3 a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.blog-card h3 a:hover {
  color: var(--primary);
}

.blog-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: var(--space-4);
}

.publish-date {
  color: var(--text-light);
  font-size: 0.875rem;
}

.read-more {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: color 0.3s ease;
}

.read-more:hover {
  color: var(--primary-dark);
}

.section-footer {
  text-align: center;
  margin-top: var(--space-12);
}

.view-all {
  display: inline-block;
  padding: var(--space-4) var(--space-8);
  border: 2px solid var(--primary);
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
}

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

/* CTA Section */
.cta-section {
  background: var(--bg-dark);
  color: white;
  padding: var(--space-16) var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
  margin: var(--space-16) 0;
}

.cta-badge {
  display: inline-block;
  background: var(--accent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  margin-bottom: var(--space-4);
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.cta-benefits {
  list-style: none;
  margin: var(--space-8) 0;
  font-size: 1.125rem;
}

.cta-benefits li {
  margin-bottom: var(--space-2);
}

.cta-button {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.cta-button:hover {
  background: var(--warning);
  transform: translateY(-2px);
}

.cta-note {
  margin-top: var(--space-4);
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Newsletter Section */
.newsletter {
  background: var(--bg-gradient);
  color: white;
  padding: var(--space-16) var(--space-8);
  border-radius: var(--radius-lg);
  margin: var(--space-16) 0;
}

.newsletter-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  margin-bottom: var(--space-4);
}

.form-group {
  display: flex;
  gap: var(--space-4);
  margin: var(--space-8) 0;
}

.newsletter-input {
  flex: 1;
  padding: var(--space-4);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
}

.newsletter-button {
  padding: var(--space-4) var(--space-8);
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease;
}

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

.form-benefits {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-6);
  font-size: 0.875rem;
}

.newsletter-note {
  font-size: 0.875rem;
  opacity: 0.9;
}

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: white;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.footer-section h3 {
  margin-bottom: var(--space-4);
}

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

.footer-section ul li {
  margin-bottom: var(--space-2);
}

.footer-section a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-locations {
  margin-top: var(--space-4);
  color: var(--text-light);
}

.certifications {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.certifications img {
  height: 40px;
  width: auto;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
}

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

.footer-links {
  display: flex;
  gap: var(--space-8);
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    padding: var(--space-4);
  }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: var(--space-4);
    flex-direction: column;
    box-shadow: var(--shadow-md);
  }
  
  .main-nav.active {
    display: flex;
  }
  
  .blog-header h1 {
    font-size: 2.5rem;
  }
  
  .blog-header p {
    font-size: 1.125rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .header-stats {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-4);
    padding: var(--space-4);
  }
  
  .featured-grid {
    grid-template-columns: 1fr;
  }
  
  .featured-card.primary {
    grid-template-columns: 1fr;
  }
  
  .form-group {
    flex-direction: column;
  }
  
  .form-benefits {
    flex-direction: column;
    gap: var(--space-2);
    align-items: center;
  }
  
  .footer-bottom .container {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.blog-card,
.featured-card,
.topic-card {
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.featured-card:nth-child(2) {
  animation-delay: 0.2s;
}

.featured-card:nth-child(3) {
  animation-delay: 0.4s;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* Content Categories */
.content-categories {
  margin: var(--space-16) 0;
  text-align: center;
}

.content-categories h3 {
  margin-bottom: var(--space-8);
}

.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.category-tag {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--bg-secondary);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

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

/* Trending Posts */
.trending-posts {
  margin: var(--space-16) 0;
  padding: var(--space-8);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.trending-posts h3 {
  margin-bottom: var(--space-8);
  text-align: center;
}

.trending-grid {
  display: grid;
  gap: var(--space-4);
  max-width: 800px;
  margin: 0 auto;
}

.trending-item {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-4);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.trending-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-md);
}

.trending-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.trending-content h4 {
  margin-bottom: var(--space-1);
  font-size: 1rem;
}

.trending-content p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Enhanced Topic Cards */
.topic-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8);
}

.topic-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  transition: transform 0.3s ease;
}

.topic-card:hover .topic-icon {
  transform: scale(1.2);
}

.topic-card h4 {
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.topic-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0;
}

/* Responsive Enhancements */
@media (max-width: 768px) {
  .category-tags {
    gap: var(--space-2);
  }
  
  .category-tag {
    font-size: 0.75rem;
  }
  
  .trending-item {
    gap: var(--space-4);
  }
  
  .trending-content h4 {
    font-size: 0.875rem;
  }
  
  .trending-content p {
    font-size: 0.75rem;
  }
}

/* Blog Post Styles */
.blog-post {
  margin-top: 64px;
}

.post-hero {
  position: relative;
  height: 600px;
  overflow: hidden;
}

.post-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.95));
  color: white;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--space-16);
}

.post-meta {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
}

.post-category {
  background: var(--primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
}

.post-excerpt {
  font-size: 1.25rem;
  max-width: 800px;
  margin-top: var(--space-6);
  opacity: 0.9;
}

.post-content {
  max-width: 800px;
  margin: var(--space-16) auto;
  padding: 0 var(--space-4);
}

/* Table of Contents */
.table-of-contents {
  background: var(--bg-secondary);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-12);
}

.table-of-contents h2 {
  margin-bottom: var(--space-6);
}

.table-of-contents ul {
  list-style: none;
  padding: 0;
}

.table-of-contents li {
  margin-bottom: var(--space-2);
}

.table-of-contents a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.table-of-contents a:hover {
  color: var(--primary);
}

/* Key Takeaway */
.key-takeaway {
  background: var(--primary);
  color: white;
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  margin: var(--space-8) 0;
}

.key-takeaway h3 {
  margin-bottom: var(--space-4);
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.metric-card {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  text-align: center;
}

.metric-formula {
  background: var(--bg-dark);
  color: white;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
  font-family: monospace;
}

/* Campaign Structure */
.campaign-structure-diagram {
  margin: var(--space-8) 0;
  text-align: center;
}

.campaign-structure-diagram img {
  max-width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.best-practices {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  margin: var(--space-8) 0;
}

/* Keyword Strategy */
.keyword-examples {
  margin: var(--space-8) 0;
  overflow-x: auto;
}

.keyword-examples table {
  width: 100%;
  border-collapse: collapse;
}

.keyword-examples th,
.keyword-examples td {
  padding: var(--space-4);
  border: 1px solid var(--border-light);
  text-align: left;
}

.keyword-examples th {
  background: var(--bg-secondary);
  font-weight: 600;
}

/* Strategy Comparison */
.strategy-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.strategy-card {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.strategy-card h3 {
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.strategy-card ul {
  list-style: none;
  padding: 0;
}

.strategy-card li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-6);
  position: relative;
}

.strategy-card li::before {
  content: "•";
  color: var(--primary);
  position: absolute;
  left: 0;
}

/* Quality Score Tips */
.quality-score-tips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.tip-card {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.tip-card h3 {
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.tip-card ul {
  list-style: none;
  padding: 0;
}

.tip-card li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-6);
  position: relative;
}

.tip-card li::before {
  content: "✓";
  color: var(--success);
  position: absolute;
  left: 0;
}

/* Landing Page Example */
.landing-page-example {
  margin: var(--space-8) 0;
}

.landing-page-example img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-8);
}

.optimization-checklist {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

/* Automation Tools */
.automation-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.tool-card {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  text-align: center;
}

/* Case Study */
.case-study-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.case-study-results,
.implementation-steps {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.case-study-results h3,
.implementation-steps h3 {
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.case-study-results ul {
  list-style: none;
  padding: 0;
}

.case-study-results li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-6);
  position: relative;
}

.case-study-results li::before {
  content: "↑";
  color: var(--success);
  position: absolute;
  left: 0;
}

.implementation-steps ol {
  padding-left: var(--space-6);
}

.implementation-steps li {
  margin-bottom: var(--space-2);
}

/* Author Bio */
.author-bio {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin: var(--space-16) 0;
  padding: var(--space-6);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.author-bio img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info h3 {
  margin-bottom: var(--space-2);
}

/* Post CTA */
.post-cta {
  background: var(--bg-dark);
  color: white;
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
  margin: var(--space-16) 0;
}

.cta-benefits {
  margin: var(--space-8) 0;
}

.cta-benefits ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.cta-button {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s ease;
}

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

.cta-note {
  margin-top: var(--space-4);
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Related Posts */
.related-posts {
  margin-top: var(--space-16);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-8);
}

.related-card {
  text-decoration: none;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.related-card:hover {
  transform: translateY(-5px);
}

.related-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.related-card h3 {
  padding: var(--space-4);
  margin: 0;
}

.related-card p {
  padding: 0 var(--space-4) var(--space-4);
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .post-hero {
    height: 400px;
  }
  
  .post-hero-overlay {
    padding-bottom: var(--space-8);
  }
  
  .post-excerpt {
    font-size: 1rem;
  }
  
  .metrics-grid,
  .strategy-comparison,
  .quality-score-tips,
  .automation-tools,
  .case-study-content,
  .related-grid {
    grid-template-columns: 1fr;
  }
  
  .author-bio {
    flex-direction: column;
    text-align: center;
  }
  
  .cta-benefits ul {
    grid-template-columns: 1fr;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .post-cta,
  .related-posts {
    display: none;
  }
  
  .post-hero {
    height: auto;
  }
  
  .post-hero-overlay {
    position: relative;
    background: none;
    color: var(--text-primary);
  }
  
  .post-content {
    max-width: none;
  }

  .blog-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .premium-badge,
  .read-more {
    display: none;
  }
}

/* Blog Post Sections */
.section-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-md);
}

.setup-checklist,
.best-practices,
.asset-examples {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.setup-checklist h3,
.best-practices h3,
.asset-examples h3 {
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.setup-checklist ul,
.best-practices ul {
  list-style: none;
  padding: 0;
}

.setup-checklist li,
.best-practices li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-6);
  position: relative;
}

.setup-checklist li::before {
  content: "✓";
  color: var(--success);
  position: absolute;
  left: 0;
}

.best-practices li::before {
  content: "•";
  color: var(--primary);
  position: absolute;
  left: 0;
}

.asset-examples {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
}

.asset-type {
  background: var(--bg-primary);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.asset-type ul {
  list-style: none;
  padding: 0;
}

.asset-type li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-4);
  position: relative;
}

.asset-type li::before {
  content: "→";
  color: var(--primary);
  position: absolute;
  left: 0;
}

/* Key Takeaway Box */
.key-takeaway {
  background: var(--primary);
  color: white;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  margin: var(--space-8) 0;
}

.key-takeaway h3 {
  color: white;
  margin-bottom: var(--space-4);
  font-size: 1.25rem;
}

.key-takeaway p {
  margin: 0;
  opacity: 0.9;
}

/* Case Study Section */
.case-study-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin: var(--space-8) 0;
}

.case-study-results,
.implementation-steps {
  background: var(--bg-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.case-study-results h3,
.implementation-steps h3 {
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.case-study-results ul {
  list-style: none;
  padding: 0;
}

.case-study-results li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-6);
  position: relative;
}

.case-study-results li::before {
  content: "↑";
  color: var(--success);
  position: absolute;
  left: 0;
}

.implementation-steps ol {
  padding-left: var(--space-6);
}

.implementation-steps li {
  margin-bottom: var(--space-2);
}

/* Author Bio */
.author-bio {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin: var(--space-16) 0;
  padding: var(--space-6);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.author-bio img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info h3 {
  margin-bottom: var(--space-2);
}

/* Post CTA */
.post-cta {
  background: var(--bg-dark);
  color: white;
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
  margin: var(--space-16) 0;
}

.cta-benefits {
  margin: var(--space-8) 0;
}

.cta-benefits ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.cta-button {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s ease;
}

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

.cta-note {
  margin-top: var(--space-4);
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Related Posts */
.related-posts {
  margin-top: var(--space-16);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-8);
}

.related-card {
  text-decoration: none;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.related-card:hover {
  transform: translateY(-5px);
}

.related-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.related-card h3 {
  padding: var(--space-4);
  margin: 0;
}

.related-card p {
  padding: 0 var(--space-4) var(--space-4);
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .post-hero {
    height: 400px;
  }
  
  .post-hero-overlay {
    padding-bottom: var(--space-8);
  }
  
  .post-excerpt {
    font-size: 1rem;
  }
  
  .metrics-grid,
  .strategy-comparison,
  .quality-score-tips,
  .automation-tools,
  .case-study-content,
  .related-grid {
    grid-template-columns: 1fr;
  }
  
  .author-bio {
    flex-direction: column;
    text-align: center;
  }
  
  .cta-benefits ul {
    grid-template-columns: 1fr;
  }
}

/* Enhanced Testimonials Section */
.testimonials {
  padding: var(--space-16) 0;
  background: var(--bg-secondary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-8);
}

.testimonial-card {
  background: var(--bg-primary);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.testimonial-content {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.testimonial-author img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author div {
  display: flex;
  flex-direction: column;
}

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

.testimonial-author span {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.testimonial-card .cta-button {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 500;
  text-align: center;
  transition: all 0.3s ease;
}

.testimonial-card .cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.testimonials-cta {
  text-align: center;
  margin-top: var(--space-12);
  padding: var(--space-8);
  background: var(--bg-gradient);
  border-radius: var(--radius-lg);
  color: white;
}

.testimonials-cta h3 {
  font-size: 2rem;
  margin-bottom: var(--space-4);
  color: white;
}

.testimonials-cta p {
  font-size: 1.125rem;
  margin-bottom: var(--space-8);
  opacity: 0.9;
}

.cta-button-large {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.cta-button-large:hover {
  background: var(--warning);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonial-card {
    padding: var(--space-6);
  }
  
  .testimonial-content {
    font-size: 1rem;
  }
  
  .testimonials-cta h3 {
    font-size: 1.5rem;
  }
  
  .testimonials-cta p {
    font-size: 1rem;
  }
  
  .cta-button-large {
    width: 100%;
    text-align: center;
  }
}