.fade-up, .fade-right, .fade-left {
  opacity: 0;
  transition: opacity .6s ease, transform .6s ease;
}

.fade-up {
  transform: translateY(100px);
}

.fade-right {
  transform: translateX(-20px);
}

.fade-left {
  transform: translateX(20px);
}

.fade-up.visible, .fade-right.visible, .fade-left.visible {
  opacity: 1;
  transform: translateY(0) translateX(0);
}

.fade-in {
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

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

@keyframes fadeUpInOut {
  15% {
    transform: translateY(-6px);
    opacity: 0.4;
  }
  80% {
    transform: translateY(-10px);
    opacity: 1;
  }
  100% {
    transform: translateY(-12px);
    opacity: 0;
  }
}

@keyframes fadeUpIn {
  15% {
    transform: translateY(-2px);
    opacity: 0.4;
  }
  80% {
    transform: translateY(-4px);
    opacity: 1;
  }
  100% {
    transform: translateY(-5px);
    opacity: 1;
  }
}

@keyframes bumpRight {
  0%, 100% {
    transform: translateX(0) translateY(-2px);
  }
  50% {
    transform: translateX(10px) translateY(-2px);
  }
  90% {
    transform: translateX(-2px) translateY(-2px);
  }
}

@keyframes borderHighlight {
  0%, 10%, 100% {
    background-color: var(--color-button);
    border-color: var(--color-button-border);
    box-shadow: var(--shadow-md) var(--color-button-base-shadow);
    transform: rotate(0deg);
  }
  1%  { transform: rotate(-1.0deg); }
  2%  { transform: rotate(1.0deg);  }
  3%  { transform: rotate(-0.5deg);   }
  4%  { transform: rotate(0.5deg);    }
  5% { transform: rotate(0deg);    }
  5%, 15% {
    background-color: var(--color-button-gold-active);
    border-color: var(--color-button-gold);
    box-shadow: var(--shadow-tab) var(--color-button-gold);
  }
}

@keyframes hoverIdle {
  0% {transform: translateY(0) scale(1);}
  10% {transform: translateY(1px) scale(1.01, 0.99);}
  20% {transform: translateY(-20px) scale(0.98, 1.02);}
  30% {transform: translateY(-24px) scale(0.99, 1.01);}
  40% {transform: translateY(0) scale(1.01, 0.99);}
  45%, 100% {transform: translateY(0) scale(1);}
}

@keyframes coinHoverIdle {
  0%, 100% { transform: scale(1) rotateX(0) rotateY(0) rotateZ(0);}
  40%      { transform: scale(1.1) rotateX(-8deg) rotateY(8deg) rotateZ(0);}
}

@keyframes boxOpen {
  0% {
    scale: 1;
    opacity: 1;
  }
  10% {
    scale: 0.9;
    opacity: 1;
  }
  50% {
    opacity: 1;
  }
  100% {
    scale: 1.1;
    opacity: 0;
  }
}

@keyframes coinSpin {
  50% {
    transform: scale(1.1) rotateX(10deg) rotateY(180deg) rotateZ(-10deg);
  }
  to {
    transform: scale(1) rotateX(0) rotateY(360deg) rotateZ(0);
  }
}