/* Critical CSS for Instant Loading - Above the Fold */
/* This CSS loads immediately to prevent layout shifts and provide instant feedback */

/* CSS Variables for consistent theming */
:root {
  --bg-primary: #232325;
  --bg-secondary: #1e1e1e;
  --card-primary: #2a2a2c;
  --card-secondary: #353537;
  --primary: #7367f0;
  --text-primary: #ffffff;
  --text-secondary: #b8b8b8;
  --border-color: #404040;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Immediate background to prevent white flash */
html, body {
  margin: 0;
  padding: 0;
  /* background-color: var(--bg-primary); */
  color: var(--text-primary);
  font-family: 'Kanit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Prevent layout shift with immediate structure */
#__nuxt {
  min-height: 100vh;
  /* background-color: var(--bg-primary); */
}

/* Critical navigation structure */
.instant-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--card-primary);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

/* Critical skeleton animations */
.skeleton-instant {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.05) 25%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.05) 75%
  );
  background-size: 200% 100%;
  animation: shimmer-instant 1.5s infinite linear;
  border-radius: 8px;
}

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

/* Critical loading states */
.app-loading {
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease;
}

.route-loading::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--primary),
    transparent
  );
  animation: loading-bar 1s ease-in-out infinite;
  z-index: 9999;
}

@keyframes loading-bar {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Critical container styles */
.base-container-small {
  max-width: 768px;
  margin: 0 auto;
  padding: 0 16px;
  padding-top: 80px; /* Account for fixed navbar */
}

/* Critical grid layouts to prevent layout shift */
.grid {
  display: grid;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

/* Critical flexbox utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

/* Critical spacing utilities */
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.m-2 { margin: 0.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }

/* Critical typography */
.text-xl { font-size: 1.25rem; }
.text-lg { font-size: 1.125rem; }
.text-base { font-size: 1rem; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }

/* Critical colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.bg-card-primary { background-color: var(--card-primary); }
.bg-card-secondary { background-color: var(--card-secondary); }

/* Critical border radius */
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }

/* Critical button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
}

.btn-primary:hover {
  background-color: #6356e5;
  transform: translateY(-1px);
}

/* Critical card styles */
.card {
  background-color: var(--card-primary);
  border-radius: 0.5rem;
  padding: 1rem;
  box-shadow: var(--shadow);
}

/* Critical image optimization */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

.game-card {
  position: relative;
  border-radius: 0.5rem;
  overflow: hidden;
  background-color: var(--card-secondary);
  aspect-ratio: 16/9;
  transition: transform 0.2s ease;
}

.game-card:hover {
  transform: translateY(-2px);
}

/* Critical responsive utilities */
@media (max-width: 640px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .base-container-small {
    padding: 0 12px;
    padding-top: 70px;
  }

  .instant-navbar {
    height: 56px;
    padding: 0 16px;
  }
}

@media (min-width: 768px) {
  .md\:grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-6 {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* Critical animations */
.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.3s ease;
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
}

/* Critical focus styles for accessibility */
*:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Critical scroll behavior */
html {
  scroll-behavior: smooth;
}

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

img, video {
  max-width: 100%;
  height: auto;
}

/* Optimize rendering */
.game-card,
.card,
.btn {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Critical loading spinner */
.loading-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Preload hint styles */
.preload-hint {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}