/* Critical CSS for CPU-Bench */
/* Above-the-fold styles only */

/* Reset and base styles */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background-color: #ffffff;
}

/* Header styles */
.header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 50;
}

/* Hero section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4rem 1rem;
  text-align: center;
}

/* Button styles */
.btn-primary {
  background: #3b82f6;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-primary:hover {
  background: #2563eb;
}

/* Card styles */
.card {
  background: white;
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin: 1rem 0;
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Responsive utilities */
@media (max-width: 768px) {
  .hero {
    padding: 2rem 1rem;
  }
  
  .card {
    margin: 0.5rem 0;
    padding: 1rem;
  }
}

/* Print styles */
@media print {
  .no-print {
    display: none !important;
  }
}