/* Modern CSS Variables for enhanced theming */
:root {
  --primary-color: #4361ee;
  --secondary-color: #3a0ca3;
  --accent-color: #4cc9f0;
  --text-primary: #2b2d42;
  --text-secondary: #555b6e;
  --background-light: #f8f9fa;
  --background-dark: #e9ecef;
  --card-bg: #ffffff;
  --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --gradient-bg: linear-gradient(135deg, #4361ee, #3a0ca3);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: "Montserrat", sans-serif;
  --border-radius: 12px;
  --transition-standard: all 0.3s ease;
  --container-width: 1140px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--background-light);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  font-size: 16px;
}

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

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

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 2.25rem;
  color: var(--primary-color);
}

h3 {
  font-size: 1.5rem;
  color: var(--secondary-color);
  margin-top: var(--spacing-md);
}

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

ul,
ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
}

strong {
  font-weight: 600;
}

/* Layout Components */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header */
header.site-header {
  background: var(--gradient-bg);
  color: white;
  padding: var(--spacing-lg) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

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

.header-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
  opacity: 0.3;
}

.site-title {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-xs);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.site-description {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
  opacity: 0.9;
}

.header-cta {
  display: inline-block;
  background: white;
  color: var(--primary-color);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition-standard);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

/* Main Content */
main.site-content {
  padding: var(--spacing-xl) 0;
}

/* Monetization Sections */
.monetization-section {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  transition: var(--transition-standard);
  position: relative;
  overflow: hidden;
  content-visibility: auto; /* for faster rendering of lower sections */
  contain-intrinsic-size: 600px; /* placeholder height for lazy rendering */
}

.monetization-section:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.1);
}

.section-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

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

.section-header h2 {
  margin-bottom: 0;
}

.section-number {
  background: var(--primary-color);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin-right: var(--spacing-sm);
  flex-shrink: 0;
}

.section-content {
  position: relative;
}

/* Feature Lists */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  position: relative;
  padding-left: 1.8rem;
  margin-bottom: var(--spacing-sm);
}

.feature-list li:before {
  content: "✓";
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Pros & Cons */
.pros-cons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.pros,
.cons {
  background: rgba(0, 0, 0, 0.03);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
}

.pros h4,
.cons h4 {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.pros h4:before {
  content: "👍";
  margin-right: 0.5rem;
}

.cons h4:before {
  content: "👎";
  margin-right: 0.5rem;
}

/* Performance Card */
.performance-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.performance-image {
  max-width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
}

.performance-text {
  flex: 1;
}

/* AdSense Steps */
.adsense-steps {
  margin: var(--spacing-md) 0;
}

.adsense-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.adsense-image {
  max-width: 100%;
  border-radius: var(--border-radius);
}

.steps-container {
  margin: var(--spacing-md) 0;
  text-align: center;
}

.steps-image {
  max-width: 100%;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.adsense-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.adsense-card {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
  box-shadow: var(--card-shadow);
  text-align: center;
  transition: var(--transition-standard);
}

.adsense-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.1);
}

.card-image {
  max-width: 100%;
  margin-bottom: var(--spacing-sm);
  border-radius: calc(var(--border-radius) / 2);
}

/* Verification Section */
.verification-section {
  margin: var(--spacing-md) 0;
}

.verification-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.verification-image {
  max-width: 100%;
  border-radius: calc(var(--border-radius) / 2);
}

.verification-text {
  flex: 1;
}

/* Mobile Example */
.mobile-example {
  margin: var(--spacing-md) 0;
}

.mobile-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.mobile-image {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: calc(var(--border-radius) / 2);
}

.mobile-text {
  flex: 1;
}

/* Ad Containers */
.ad-container {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-sm);
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--border-radius);
  text-align: center;
  overflow: hidden;
  position: relative;
}

.ad-container:before {
  content: "Advertisement";
  display: block;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.ad-container.sidebar {
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.ad-container.leaderboard {
  min-height: 90px;
}

.ad-container.in-content {
  min-height: 250px;
}

/* Call to Action Boxes */
.cta-box {
  background: var(--gradient-bg);
  color: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  text-align: center;
  margin: var(--spacing-lg) 0;
}

.cta-box h3 {
  color: white;
  margin-top: 0;
}

.cta-box .btn {
  background: white;
  color: var(--primary-color);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  display: inline-block;
  font-weight: 600;
  margin-top: var(--spacing-sm);
  transition: var(--transition-standard);
}

.cta-box .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer.site-footer {
  background: var(--secondary-color);
  color: white;
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
}

.footer-content {
  position: relative;
  z-index: 2;
}

.footer-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
  opacity: 0.2;
}

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

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin: var(--spacing-md) 0;
}

.footer-links a {
  color: white;
  margin: 0 var(--spacing-sm);
  opacity: 0.8;
}

.footer-links a:hover {
  opacity: 1;
}

.copyright {
  opacity: 0.7;
  font-size: 0.9rem;
  margin-top: var(--spacing-md);
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

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

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

.mt-sm {
  margin-top: var(--spacing-sm);
}

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

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

.lazy-section {
  opacity: 0;
}

.lazy-section.loaded {
  animation: fadeIn 0.8s ease forwards;
}

/* Responsive Design */
@media (max-width: 992px) {
  :root {
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
  }

  .site-title {
    font-size: 3rem;
  }

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

@media (max-width: 768px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .site-title {
    font-size: 2.5rem;
  }

  .site-description {
    font-size: 1.1rem;
  }

  .pros-cons {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  :root {
    --spacing-sm: 0.75rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 1.75rem;
    --spacing-xl: 2.5rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.35rem;
  }

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

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

/* Noscript */
noscript {
  display: block;
  background: #fff;
  padding: var(--spacing-md);
  margin: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
}