/* CSS Test File for Phase 3: CSS Support */

:root {
  --main-bg: #ffffff;
  --primary-color: #0066cc;
  --secondary-color: #ff6b6b;
}

/* Button styles */
.btn-primary {
  color: white;
  background-color: var(--primary-color);
  padding: 10px 20px;
  border-radius: 4px;
}

.btn-secondary {
  color: white;
  background-color: var(--secondary-color);
  padding: 10px 20px;
  border-radius: 4px;
}

/* Header styles */
#header-container {
  font-size: 20px;
  font-weight: bold;
  padding: 20px;
}

#header-title {
  color: #333333;
}

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

.card {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Responsive utilities */
.responsive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-in;
}
