/* Critical CSS for initial page load performance */

/* Performance optimizations */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Oxygen,
    Ubuntu, Cantarell, sans-serif;
  font-display: swap;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* App container */
#app-container {
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.app-loaded {
  transition: opacity 0.3s ease-in-out;
}

/* Main content wrapper for accessibility */
#main-content {
  width: 100%;
  height: 100%;
  position: relative;
}

/* Focus indicators for accessibility */
*:focus {
  outline: 2px solid #0175c2;
  outline-offset: 2px;
}

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #0175c2;
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 10000;
  border-radius: 4px;
  transition: top 0.2s ease-in-out;
}

.skip-link:focus {
  top: 6px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  * {
    border-color: #000 !important;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  /* Dark mode styles can be added here */
}

/* Print styles for better printing experience */
@media print {
  .skip-link {
    display: none !important;
  }
}

/* Performance optimization: minimize repaints */
.no-select {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Improve font rendering */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Performance optimizations for Flutter web */
html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* Critical layout styles for Flutter content */
flt-glass-pane {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Optimize rendering performance */
flt-scene-host {
  pointer-events: auto;
  contain: layout size paint;
}

/* Image optimization */
img {
  max-width: 100%;
  height: auto;
  image-rendering: optimizeQuality;
}

/* Ensure text remains visible during webfont load */
.wf-loading body {
  font-family: sans-serif;
}

/* Mobile optimizations */
@media (max-width: 768px) {
  #app-container {
    overflow-y: auto;
    scroll-behavior: smooth;
  }

  .skip-link {
    font-size: 16px; /* Prevent zoom on iOS */
  }

  /* Support for older Safari versions */
  @supports (-webkit-overflow-scrolling: touch) {
    #app-container {
      -webkit-overflow-scrolling: touch;
    }
  }

  /* Modern browsers */
  @supports (overscroll-behavior: contain) {
    #app-container {
      overscroll-behavior: contain;
    }
  }
}

/* Touch target optimization for mobile */
@media (pointer: coarse) {
  button,
  input,
  select,
  textarea,
  a {
    min-height: 44px;
    min-width: 44px;
  }
}