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

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

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(1.5rem); }
  to { opacity: 1; transform: translateY(0); }}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-1.5rem); }
  to { opacity: 1; transform: translateY(0); }}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(-1.5rem); }
  to { opacity: 1; transform: translateX(0); }}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(1.5rem); }
  to { opacity: 1; transform: translateX(0); }}

@keyframes scaleUp {
  from { transform: scale(0); }
  to   { transform: scale(1); }}

@keyframes scaleDown {
  from { transform: scale(1); }
  to   { transform: scale(0); }}

@keyframes slideUp {
  from { transform: translateY(25vh); }
  to   { transform: translateY(0); }}

@keyframes slideDown {
  from { transform: translateY(-25vh); }
  to   { transform: translateY(0); }}

@keyframes slideLeft {
  from { transform: translateX(25vh); }
  to   { transform: translateX(0); }}

@keyframes slideRight {
  from { transform: translateX(-25vh); }
  to   { transform: translateX(0); }}

@keyframes flipIn {
  from { opacity: 0; transform: scaleY(0); }
  to   { opacity: 1; transform: scaleY(1); }}

@keyframes flipOut {
  from { opacity: 1; transform: scaleY(1); }
  to   { opacity: 0; transform: scaleY(0); }}

@keyframes rotateRight {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }}

@keyframes rotateLeft {
  from { transform: rotate(360deg); }
  to   { transform: rotate(0deg); }}

@keyframes flash {
  from { opacity: 1; }
  to   { opacity: 0.25; }}

@keyframes shake {
  15% { transform: translateX(0.5rem); }
  30% { transform: translateX(-0.4rem); }
  45% { transform: translateX(0.3rem); }
  60% { transform: translateX(-0.2rem); }
  75% { transform: translateX(0.1rem); }
  90% { transform: translateX(0); }
  90% { transform: translateX(0); }}


.fadeIn      { animation: fadeIn 500ms; }
.fadeOut     { animation: fadeOut 500ms; }

.fadeInUp    { animation: fadeInUp 500ms; }
.fadeInDown  { animation: fadeInDown 500ms; }

.fadeInRight { animation: fadeInRight 500ms; }
.fadeInLeft  { animation: fadeInLeft 500ms; }

.slideUp     { animation: slideUp 200ms ease-in-out; }
.slideDown   { animation: slideDown 200ms ease-in-out; }

.slideRight  { animation: slideRight 200ms ease-in-out; }
.slideLeft   { animation: slideLeft 200ms ease-in-out; }

.scaleUp     { animation: scaleUp 200ms ease-in-out; }
.scaleDown   { animation: scaleDown 200ms ease-in-out; }

.flipIn      { animation: flipIn 200ms cubic-bezier(0.5, -0.5, 0.5, 1.5) }
.flipOut     { animation: flipOut 200ms cubic-bezier(0.5, -0.5, 0.5, 1.5) }

.rotateRight { animation: rotateRight 500ms ease-in-out; }
.rotateLeft  { animation: rotateLeft 500ms ease-in-out; }

.flash       { animation: flash 500ms 3; }
.shake       { animation: shake 200ms; }