@keyframes mdFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes mdSlideRight {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes mdSlideLeft {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes mdScaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes mdFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes mdRipple {
  0% { transform: scale(0); opacity: 0.3; }
  100% { transform: scale(4); opacity: 0; }
}

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

.md-animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.md-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

.md-ripple {
  position: relative;
  overflow: hidden;
}

.md-ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  border-radius: inherit;
  transition: opacity 0.3s;
}

.md-ripple:active::after {
  opacity: 0.12;
}