/* Critical CSS for above-the-fold content */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #2D87E4;
  --secondary: #DC0000;
  --dark: #000000;
  --light: #FFFFFF;
}

body {
  font-family: 'Exo 2', Arial, sans-serif;
  color: var(--dark);
  line-height: 1.5;
  font-size: 1.2em;
}

/* Critical above-the-fold styles */
.header {
  background: var(--light);
  padding: 1rem 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
}

.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.hero-section {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--light);
  padding: 2rem 0;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

/* Critical layout styles */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.5rem;
}

.col {
  flex: 1;
  padding: 0 0.5rem;
}

/* Prevent layout shifts - Critical for CLS */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Ad container reservations to prevent CLS */
[id^="div-gpt-ad-"] {
  min-height: 90px;
  display: block;
  background: transparent;
}

/* Specific ad sizes */
[id*="leaderboard"] {
  min-height: 90px;
  width: 100%;
}

[id*="medium-rect"] {
  min-height: 250px;
  width: 300px;
}

[id*="skin"] {
  min-height: 800px;
  width: 120px;
}

/* Font loading optimization */
@font-face {
  font-family: 'Exo 2';
  font-display: swap;
}

/* Loading states */
.lazy {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.loaded {
  opacity: 1;
}

/* Critical responsive styles */
@media (max-width: 768px) {
  .navigation {
    flex-direction: column;
    gap: 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .row {
    flex-direction: column;
  }
  
  /* Mobile ad reservations */
  [id*="medium-rect"] {
    min-height: 250px;
    width: 100%;
    max-width: 300px;
  }
}