/* Game page — extracted from game/index.html (A+ UI components, nav, grids) */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Roboto", Arial, sans-serif;
  background: #0a0a0a;
  color: #ffffff;
  overflow-x: hidden;
}

.bg-animated {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(0, 255, 136, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 212, 255, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(255, 100, 255, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
  background-size: 400% 400%;
  animation: gameGradientShift 20s ease infinite;
}

@keyframes gameGradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(0, 255, 136, 0.6);
  border-radius: 50%;
  animation: gameParticleFloat 20s infinite linear;
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

@keyframes gameParticleFloat {
  0% {
    transform: translateY(100vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) translateX(100px) rotate(360deg);
    opacity: 0;
  }
}

.game-page {
  min-height: 100vh;
  position: relative;
  z-index: 2;
  padding: 60px 20px 80px;
}

.game-header {
  text-align: center;
  margin-bottom: 60px;
  padding: 40px 20px;
  position: relative;
}

.game-header::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.3), transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
  animation: gamePulseGlow 4s ease-in-out infinite;
}

@keyframes gamePulseGlow {
  0%,
  100% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.1);
  }
}

.game-header h1 {
  font-size: 4.5rem;
  font-weight: 900;
  margin: 0 0 20px 0;
  background: linear-gradient(135deg, #00ff88, #00d4ff, #ff00ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -2px;
  line-height: 1.1;
  text-shadow: 0 0 60px rgba(0, 255, 136, 0.5);
  position: relative;
  display: inline-block;
}

.game-header h1::after {
  content: "✨";
  position: absolute;
  right: -50px;
  top: 0;
  font-size: 0.5em;
  animation: gameSparkle 2s ease-in-out infinite;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.8));
}

@keyframes gameSparkle {
  0%,
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.3) rotate(180deg);
  }
}

.game-header .subtitle {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
  margin-top: 10px;
  letter-spacing: 1px;
}

.game-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.game-tab {
  padding: 14px 28px;
  background: rgba(40, 40, 55, 0.8);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  font-size: 0.95rem;
}

.game-tab:hover {
  background: rgba(0, 255, 136, 0.2);
  border-color: #00ff88;
  color: #00ff88;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 255, 136, 0.3);
}

.game-tab.active {
  background: linear-gradient(135deg, #00ff88, #00d4ff);
  color: #000;
  border-color: #00ff88;
  box-shadow: 0 8px 32px rgba(0, 255, 136, 0.5);
  transform: translateY(-2px);
}

.game-tab-content {
  display: none;
}

.game-tab-content.active {
  display: block;
  animation: gameFadeIn 0.4s ease-out;
}

@keyframes gameFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.stats-tab-btn {
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-base);
  border-bottom: none;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.stats-tab-btn:hover {
  background: var(--bg-card-hover);
}

.stats-tab-btn.active {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
}

.advanced-stats-tab-content {
  display: none;
  padding: var(--spacing-md);
  min-height: 200px;
}

.advanced-stats-tab-content.active {
  display: block;
  animation: gameFadeIn 0.3s ease-out;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.achievement-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  transition: all var(--transition-base);
}

.achievement-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.achievement-card.earned {
  border-color: var(--primary);
  background: rgba(0, 255, 136, 0.05);
  animation: gameAchievementUnlock 0.6s ease-out;
}

.achievement-icon {
  font-size: 3em;
  flex-shrink: 0;
}

.achievement-content {
  flex: 1;
}

.achievement-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.achievement-description {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-sm);
}

.achievement-points {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 255, 136, 0.1);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.leaderboard-item {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-base);
}

.leaderboard-item:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
}

.leaderboard-item.current-user {
  border-color: var(--primary);
  background: rgba(0, 255, 136, 0.1);
}

.leaderboard-rank {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary);
  min-width: 50px;
}

.leaderboard-info {
  flex: 1;
  margin-left: var(--spacing-md);
}

.leaderboard-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.leaderboard-stats {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.leaderboard-score {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary);
}

.xp-history-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 500px;
  overflow-y: auto;
}

.xp-history-item {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.xp-history-info {
  flex: 1;
}

.xp-history-action {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.xp-history-date {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.xp-history-amount {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary);
}

.rewards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.reward-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  text-align: center;
  transition: all var(--transition-base);
}

.reward-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.reward-card.unlocked {
  border-color: var(--primary);
  background: rgba(0, 255, 136, 0.05);
}

.reward-icon {
  font-size: 3em;
  margin-bottom: var(--spacing-sm);
}

.reward-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.reward-level {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.stats-allocation {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.stat-allocation-item {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
}

.stat-allocation-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.stat-allocation-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.stat-allocation-controls {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
}

.stat-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.stat-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
}

.stat-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@keyframes gameAchievementUnlock {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes levelUpBounce {
  0%,
  100% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.2) rotate(-5deg);
  }
  50% {
    transform: scale(1.3) rotate(5deg);
  }
  75% {
    transform: scale(1.1) rotate(-2deg);
  }
}

.prestige-section {
  text-align: center;
  padding: var(--spacing-xl);
}

.prestige-level {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
}

.prestige-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.page-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-primary);
  padding: var(--spacing-sm) 0;
  margin-bottom: var(--spacing-lg);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.nav-links {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.nav-link {
  padding: var(--spacing-xs) var(--spacing-md);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.nav-link:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #000;
}

.nav-home {
  font-weight: 700;
  color: var(--primary);
}

@media (max-width: 768px) {
  .game-header h1 {
    font-size: var(--font-size-3xl);
  }

  .achievement-grid,
  .rewards-grid {
    grid-template-columns: 1fr;
  }

  .nav-container {
    flex-direction: column;
  }

  .nav-links {
    justify-content: center;
  }
}