/* Achievement System Styling */
/* Delightful popup animations for milestone achievements */

.achievement-popup {
  position: fixed;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  pointer-events: none;
}

.achievement-popup.show {
  top: 80px;
  animation: achievementBounce 0.6s ease;
}

.achievement-content {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 20px 32px;
  border-radius: 16px;
  box-shadow: 
    0 20px 60px rgba(102, 126, 234, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  text-align: center;
  min-width: 280px;
  backdrop-filter: blur(10px);
}

.achievement-icon {
  font-size: 48px;
  margin-bottom: 12px;
  animation: iconPulse 0.6s ease infinite;
}

.achievement-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.achievement-message {
  font-size: 14px;
  opacity: 0.95;
  font-weight: 500;
}

/* Animations */
@keyframes achievementBounce {
  0% {
    transform: translateX(-50%) scale(0.3) translateY(-100px);
    opacity: 0;
  }
  50% {
    transform: translateX(-50%) scale(1.05) translateY(0);
  }
  70% {
    transform: translateX(-50%) scale(0.95) translateY(0);
  }
  100% {
    transform: translateX(-50%) scale(1) translateY(0);
    opacity: 1;
  }
}

@keyframes iconPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Alternative color schemes for variety */
.achievement-popup.gold .achievement-content {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  box-shadow: 
    0 20px 60px rgba(240, 147, 251, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.achievement-popup.green .achievement-content {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  box-shadow: 
    0 20px 60px rgba(79, 172, 254, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

/* Mobile optimizations */
@media (max-width: 640px) {
  .achievement-popup.show {
    top: 60px;
  }
  
  .achievement-content {
    padding: 16px 24px;
    min-width: 240px;
  }
  
  .achievement-icon {
    font-size: 40px;
  }
  
  .achievement-title {
    font-size: 18px;
  }
  
  .achievement-message {
    font-size: 13px;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .achievement-content {
    box-shadow: 
      0 20px 60px rgba(102, 126, 234, 0.6),
      0 0 0 1px rgba(255, 255, 255, 0.15) inset;
  }
}

/* Confetti effect (optional enhancement) */
.achievement-popup::before,
.achievement-popup::after {
  content: '✨';
  position: absolute;
  font-size: 24px;
  opacity: 0;
  animation: confetti 1s ease-out forwards;
}

.achievement-popup::before {
  top: -10px;
  left: -20px;
  animation-delay: 0.1s;
}

.achievement-popup::after {
  top: -15px;
  right: -20px;
  animation-delay: 0.2s;
}

@keyframes confetti {
  0% {
    opacity: 1;
    transform: translate(0, 0) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx, 30px), var(--ty, -30px)) rotate(180deg);
  }
}