/* 
 * Advanced Performance Optimization for MSB Aurora v1
 * Includes lazy loading, critical CSS, and performance enhancements
 */

/* Critical CSS - Above the fold optimization */
.critical-css {
  /* Inline critical styles for faster initial render */
  display: block;
}

/* Lazy loading styles */
.lazy {
  opacity: 0;
  transition: opacity 0.3s;
}

.lazy.loaded {
  opacity: 1;
}

/* Image optimization classes */
.responsive-image {
  max-width: 100%;
  height: auto;
}

.hero-image {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Performance optimizations */
.will-change-transform {
  will-change: transform;
}

.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Core Web Vitals optimizations */
.reduce-cls {
  /* Cumulative Layout Shift prevention */
  min-height: 200px; /* Prevent layout shifts */
}

/* Preload critical fonts */
@font-face {
  font-family: 'System';
  src: 
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-display: swap; /* Improve text rendering performance */
}

/* Optimize animations for 60fps */
@keyframes optimized-fadeIn {
  from {
    opacity: 0;
    transform: translate3d(0, 20px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.fade-in-optimized {
  animation: optimized-fadeIn 0.6s ease-out;
}

/* Defer non-critical CSS */
.defer-styles {
  /* Styles that can be loaded after critical rendering path */
  position: relative;
}

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

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

/* Focus management for better accessibility */
.focus-visible:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}