/* Base */
* {
  box-sizing: border-box;
}
/* Buttons and links */
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
/* todo: spinner/processing state, errors, animations */
.spinner,
.spinner:before,
.spinner:after {
  border-radius: 50%;
}
.spinner {
  color: #ffffff;
  font-size: 22px;
  text-indent: -99999px;
  margin: 0px auto;
  position: relative;
  width: 20px;
  height: 20px;
  box-shadow: inset 0 0 0 2px;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
}
.spinner:before,
.spinner:after {
  position: absolute;
  content: "";
}
.spinner:before {
  width: 10.4px;
  height: 20.4px;
  background: #000;
  border-radius: 20.4px 0 0 20.4px;
  top: -0.2px;
  left: -0.2px;
  -webkit-transform-origin: 10.4px 10.2px;
  transform-origin: 10.4px 10.2px;
  -webkit-animation: loading 2s infinite ease 1.5s;
  animation: loading 2s infinite ease 1.5s;
}
.spinner:after {
  width: 10.4px;
  height: 10.2px;
  background: #000;
  border-radius: 0 10.2px 10.2px 0;
  top: -0.1px;
  left: 10.2px;
  -webkit-transform-origin: 0px 10.2px;
  transform-origin: 0px 10.2px;
  -webkit-animation: loading 2s infinite ease;
  animation: loading 2s infinite ease;
}
@-webkit-keyframes loading {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@keyframes loading {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

/* Animated form */
.hidden {
  display: none;
}
@keyframes field-in {
  0% {
    opacity: 0;
    transform: translateY(8px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateY(0px) scale(1);
  }
}
@keyframes form-in {
  0% {
    opacity: 0;
    transform: scale(0.98);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}